EP2230360A1 - Fire-resistant strip - Google Patents

Fire-resistant strip Download PDF

Info

Publication number
EP2230360A1
EP2230360A1 EP10156940A EP10156940A EP2230360A1 EP 2230360 A1 EP2230360 A1 EP 2230360A1 EP 10156940 A EP10156940 A EP 10156940A EP 10156940 A EP10156940 A EP 10156940A EP 2230360 A1 EP2230360 A1 EP 2230360A1
Authority
EP
European Patent Office
Prior art keywords
fibers
bead
weight
fire
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10156940A
Other languages
German (de)
French (fr)
Other versions
EP2230360B1 (en
Inventor
Xavier Decant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferlam Technologies
Original Assignee
Ferlam Technologies
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferlam Technologies filed Critical Ferlam Technologies
Publication of EP2230360A1 publication Critical patent/EP2230360A1/en
Application granted granted Critical
Publication of EP2230360B1 publication Critical patent/EP2230360B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/948—Fire-proof sealings or joints
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/06—Braid or lace serving particular purposes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4242—Carbon fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D04H1/4342—Aromatic polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/08—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0243—Fabric incorporating additional compounds enhancing functional properties

Definitions

  • the present invention relates to the technical field of firestop beads for the manufacture of firestop seals, more particularly firestop pads consisting of a core comprising rock fibers and an outer casing.
  • a fire seal is made with a mineral fiber bead as bottom seal and fireproof sealant or a metal seal cover.
  • the mineral fiber most often used, given its performance as a thermal insulator, its fire resistance and its price is rock fiber. It is used to control the spread of flame and gases.
  • Rock fiber is an artificial mineral fiber, naturally incombustible, since there is no chemical agent added to retard its combustion.
  • Rock fiber begins to deteriorate from 1093 ° C.
  • the rock fibers are very short, of the order of a few millimeters.
  • Firestop beads consisting of a core exclusively made of rock fibers and an outer shell are known.
  • the fibers or rockwool are fed in the form of wool or wad in a collection cone feeding a braider.
  • the outer jacket resistant to high temperatures, is braided and thus covers a flange formed of rock fibers having a section and a linear mass very irregular.
  • the bead obtained logically presents these defects.
  • the core being irregular, because made from unbound loose rock fibers, the braided outer shell must ensure itself cohesion and maintenance of the elongated shape of the bead. It thus represents a significant relative weight in the total weight of the bead while the core provides most of the desired fire function.
  • said outer casing can not prevent the release of dust from rock fibers in the core, the latter being only agglomerated in bulk during the process of sheathing.
  • the cover of the core by the outer casing is reinforced by varying the titration of the braided yarns but especially by choosing a lower braiding step, which results in a direct decrease in braiding speed. at the expense of productivity and a parallel increase in the amount of said envelope.
  • the subject of the present invention is, according to a first aspect, a fire-resistant bead consisting of a core comprising rock fibers and a high-temperature resistant outer shell that overcomes the aforementioned problems in that the core further comprises , in intimate mixture with the rock fibers and in a minor proportion, high temperature resistant crimped fibers having a length greater than or equal to 40 mm.
  • Said rock fibers and support fibers are in the form of one or more carded ribbons arranged parallel to each other in the longitudinal direction of said bead.
  • high temperature resistant support fibers means fibers which are nonflammable and / or which decompose under the effect of heat and are capable of withstanding temperatures of at least about 250.degree. C., preferably greater than 350.degree. ° C.
  • Rock fibers can not be carded alone because they are much too short. It is the merit of the plaintiff to have imagined and verified that it is possible to card rock fibers by mixing them with a certain amount of crimped fiber fibers of at least 40 mm. Thus, thanks to the presence of these crimped support fibers, the rock fibers can be conveyed, carded and recovered in the form of a cardboard tape, of regular appearance and linear density.
  • the minimum length of 40 mm of the support fibers is not sufficient to card mixed rock fibers.
  • the support fibers must also have a crimp to drive the rock fibers, the latter having indeed a length of only a few millimeters. When the support fibers have a length of less than 40 mm and they are not crimped, the rock fibers are insufficiently maintained and driven during carding, so that the losses in rock fibers, unrecoverable because in the form of dust, are very important.
  • the support fibers have a length of between 40 mm and 120 mm.
  • the rock fibers selected for the manufacture of the beads are preferably selected so as to have a low biopersistence, such as the rock fibers sold under the trade name Lapinus® by Rock Wool.
  • the outer envelope has the function of holding together the carded ribbons and to give the bead a substantially regular circular section.
  • the present invention makes it possible to strengthen and improve the cohesion of the core, it consequently makes it possible to reduce the linear mass of the outer envelope.
  • the core having a regular linear mass facilitates the operation of laying the outer casing and allows obtaining a bead having a shape and a linear mass also regular.
  • the bead according to the invention is in the form of a bead which is characterized by a significantly improved cohesion as well as an excellent resilience allowing it to maintain its elongated shape despite the deformations suffered during its implementation. It also has a very good flexibility, which facilitates handling and installation.
  • the firestop bead according to the invention can be used alone or with a putty, a mechanical seal cover, a seal to clip or a flexible sealing profile.
  • the bead is particularly used for the treatment of vertical and horizontal joints requiring fire protection, such as floor joints, walls and ceilings, joints between prefabricated facades, joints between floor nosings and prefabricated facades ; it can also be used in firewalls, in ducts and ducts.
  • the firestop seals equipped with the firestop beads according to the invention must satisfy in particular the standard EN 13501-2 classifications EI 120, El 180 or EI 240.
  • the number of carded ribbons arranged in a core is a function of the diameter and the linear density of the target bead.
  • the proportions between rock fibers and crimped fibers resistant to high temperatures are determined according to the desired fire properties - in order to meet the regulatory standards mentioned above - and carding constraints for the realization of card ribbons.
  • the rock fibers represent between 60% and 80% by weight, of the total weight of the bead.
  • the Applicant has determined that whatever the target diameter of the bead and that the latter meets the regulatory standards mentioned above, the proportion by weight of rock fibers relative to the weight of the bead is between 60% and 80%.
  • the weight proportion of rock fibers is about 80% to 90% of the total weight of a card sliver and the proportion by weight of crimped fiber fibers is about 10% to 20% of the total weight of a sliver. cardboard ribbon.
  • the rock fibers represent at least 75% by weight of the total weight of a fire bead having a diameter greater than or equal to 20 mm.
  • the proportion by weight of rock fibers relative to the total weight of a bead according to the invention having a diameter greater than or equal to 20 mm is of the order of 75% to 80%.
  • the proportion by weight of rock fibers is substantially constant regardless of the diameter of the bead provided that the latter has a diameter greater than or equal to 20 mm, which allows to obtain even constant fire resistance properties whatever the diameter of said bead unlike the beads of the state of the art.
  • the rock fibers represent at least 60% by weight of the total weight of a fire bead having a diameter of less than 20 mm.
  • the presentation of the rock fibers in the form of cardboard ribbon makes it possible to produce a bead of small diameter hitherto impossible in the state of the art. Given the small diameter, and the necessary presence of the outer shell although minimized, compared to the current state of the art, the linear density of the core is logically lower compared to the total linear density of the bead .
  • the outer casing is formed, in particular by braiding, of son resistant to high temperatures, in particular glass son.
  • high-temperature-resistant yarns means fibers spun from fibers, non-flammable monofilaments or multifilament yarns and / or which decompose under the effect of heat and are capable of withstanding temperatures of at least about 350.degree. ° C.
  • the outer jacket is applied to the core at a constant tension so that it is properly pressed against the core evenly over the entire length of the bead, which avoids the distended son projecting laterally bead and thus the attachment and fraying of said outer casing. Manipulation of the bead according to the invention is thus facilitated, in particular with regard to multifilament yarns, in particular made of glass.
  • the outer envelope represents from about 7% to 10% by weight of the total weight of a bead having a diameter greater than or equal to 20 mm.
  • the outer casing of the bead obtained according to the invention having a diameter greater than or equal to 20 mm has a greater pitch than those of beads having a diameter of the same order known from the state of the art since it has not need an outer envelope as covering as the envelopes of the state of the art, because of the presentation of the soul in the form of tape (s) card.
  • the braiding speed is thus considerably improved, for example it can be multiplied by two.
  • the step according to the invention is defined as the distance separating two son cracks arranged along a straight line passing through the longitudinal direction of the bead.
  • a firestop bead of the state of the art having a diameter of the order of 20 mm comprises an outer envelope representing by weight about 40% of the total weight of said bead against about 8.5% for a bead obtained according to the invention.
  • the outer casing is not feasible based on rock fibers but necessarily on high temperature resistant yarns which are more expensive than rock fibers, the beads according to the invention represent a significant gain.
  • the outer envelope represents of the order of 10% to 25% by weight of the total weight of a bead having a diameter of less than 20 mm.
  • the linear density of the core is also low so that the proportion by weight of the outer envelope relative to the weight of the bead is logically greater.
  • the presentation of the rock fibers in the form of card ribbons makes it possible to produce a small diameter firestop bead, and to optimize the proportion by weight of the outer casing with respect to the weight of the bead and, correlatively, the cost of manufacture. said bead.
  • the high temperature-resistant crimped support fibers are chosen alone or as a mixture from the following fibers: meta-aramid fibers, para-aramid fibers, or para-aramid and meta-aramid copolymers, glass, preferably type E, phenolic fibers such as those marketed under the trademark Kynol®, carbon fibers.
  • the bead comprises in its core one or more high temperature resistant wires arranged parallel to the longitudinal direction of said bead.
  • high-temperature-resistant yarns means spun yarns of fibers, non-flammable monofilaments or multifilament yarns and / or which decompose under the effect of heat and are capable of withstanding temperatures at least of the order of 250 ° C, preferably greater than 350 ° C.
  • This arrangement makes it possible to strengthen and improve the cohesion of the core, thus reducing the linear mass of external envelope required to hold the ribbons and the wire or wires together, as well as to form a substantially regular circular section.
  • the son or son are arranged in the center of the soul and surrounded by the carded or ribbons.
  • the high-temperature resistant yarns are chosen, alone or as a mixture, from the following yarns: meta-aramid yarn, para-aramid, or para-aramid and meta-aramid copolymer, glass, especially of the E type, phenolic yarns such as those marketed under the Kynol® brand, carbon threads.
  • the core comprises several ribbons, preferably at least 4 ribbons, a mixture of 85% rock fibers by weight and 15% of crimped fibers, in particular para-aramid fibers, each ribbon having a linear density ranging from 15 g / m to 50 g / m.
  • One or more son resistant to high temperatures can also be powered under tension parallel to the ribbons carded in the second step.
  • Said yarns are preferably arranged with respect to the card ribbons during feeding so as to end up in the center of the core of the bead, the card ribbons forming the periphery of the core.
  • the second step is performed on a braider on which it will be defined the number of bobbins necessary to ensure sufficient maintenance of the bead and satisfactory resilience, as well as the gauge required to obtain the dimensions of the bead sought.
  • the gauge is here defined as the internal diameter of the annular piece through which the son forming the outer envelope meet and come to apply to the core.
  • the fire bead 1 is composed of a core 2 and an outer shell 3.
  • the core 2 comprises rock fibers 4 intimately mixed with high temperature resistant crimped fibers having a length greater than or equal to 40 mm.
  • the core 2 is in the form of several carded ribbons arranged parallel to each other in the longitudinal direction (L) of said bead 1.
  • the core 2 comprises in this specific example two carded ribbons each having a linear density of the order 15 g / m.
  • Each ribbon comprises 85% by weight of rock fibers for 15% of para-aramid fibers.
  • the crimped support fibers 5 have an average length ranging from 40 mm to 80 mm. It may in particular be recycling fibers, of average length smaller than the original length, but which have the advantage of being less expensive.
  • the rock fibers represent approximately 64% by weight of the total weight of the bead 1.
  • the outer envelope 3 is formed of a braid 6 composed of glass multifilament yarns 7, in particular of the E type, having a titration ranging from 500 tex to 2000 tex, in this specific example of the order of 650 tex. Step 8 of the braid is about 17 mm.
  • the bead 1 has a linear density of the order of 45 g / m +/- 10% and a substantially circular section having a diameter of the order of 10 mm +/- 10%.
  • the outer casing 3 represents about 25% by weight of the total weight of the bead 1.
  • the outer casing 3 is braided on a 12-spindle braiding machine of which only 6 spindles comprise a spool of multifilament yarns 7.
  • the two carded ribbons are fed with tension to a braider and this so as to be arranged parallel when they pass in the center braider. Since the core 2 is of regular appearance and linear density, the purpose of the braid 6 is simply to hold said ribbons together and to give a substantially circular section to the bead 1, aided thereby by the braiding gage.
  • the larger braiding pitch allowed by the present invention, makes it possible to reduce the relative amount of the outer casing and to speed up the speed of the braiding machine. In this specific example, the speed of the braider is of the order of 75 m / hour.
  • the second example of bead 9 according to the figure 2 differs from the first example of bead 1 in that the core 10 is composed of five carded ribbons 11 and two multifilament reinforcing son 12 in a high temperature resistant material, in particular type E glass. a titration ranging from 500 tex to 3000 tex, preferably of the order of 2000 tex, and represent about 2% by weight of the total weight of the bead 9.
  • the carded ribbons 11 comprise a mixture of rock fibers and resistant fiber supports at high temperatures identical to that described in the first example.
  • the carded ribbons 11 are broken down into four ribbons of 40 g / m and a ribbon of 20 g / m.
  • the crimped support fibers represent about 13% by weight of the total weight of the bead 9.
  • the bead 9 has a linear density of the order of 210 g / m +/- 10% and a substantially circular section having a diameter 9a of the order 30 mm +/- 10%.
  • the outer casing 13 is also braided and represents about 9% of the total weight of the bead 9.
  • the cross section of the bead 9 shown in FIG. figure 3 comprises six intersections 14 of high temperature resistant multifilament yarns 16 for holding together the carded ribbons 11 and the reinforcing yarns 12.
  • the outer envelope 13 preferably has a pitch of about 12.5 mm.
  • the outer casing of a bead of the prior art having a diameter of the order of 30 mm represents about 22% by weight of the total weight of said bead which represents a significant additional cost and limits the cladding speeds.
  • This bead also has the drawbacks developed above which include the lack of resilience, cohesion, the tendency to fraying and a very irregular appearance.
  • the figure 4 illustrates a bead according to the first or second embodiment 1.9 disposed in a ground joint 20 with a mechanical seal cover 21.
  • the diameter of the bead 1.9 is chosen according to the size of the seal 20 to be closed, preferably the diameter of the bead 1.9 is slightly greater than that of the ground joint 20.
  • the walls of the ground joint 20 are coated with a layer of glue, for example an incombustible silicate-based glue, so that the bead 1.9 is perfectly secured in the position according to which the operator has placed.
  • the choice of the diameter of the bead 1.9 is also determined to maintain a compression of about 30% during the maximum opening of the seal in case of fire.
  • the manufacturing technology of the bead according to the present invention from this point of view a certain progress, giving it a much higher resilience.
  • the bead 1.9 ensures its fire function by slowing the spread of fire and gases in the direction F.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Fireproofing Substances (AREA)
  • Sealing Material Composition (AREA)

Abstract

A fireproof roll (1, 9) for making fire-break joints, comprising a core (2, 10) of rock fibres (4) and a high temperature-resistant outer envelope (3, 13), in which the core also contains a smaller amount of high temperature-resistant, curly support fibres (5) with a length of at least 40 mm (intimately mixed with (4)), the two types (4; 5) being in the form of one or more carded tapes (11) parallel to one another in the longitudinal direction (L) of the roll (1, 9). An independent claim is included for a method for making a fireproof roll as described above, by (a) carding a mixture of the two types of fibre (4; 5) to form carded tape (11) and (b) feeding one or more tapes in parallel onto a sheathing machine so as to cover the core (2, 10) formed by the assembled tapes.

Description

La présente invention concerne le domaine technique des bourrelets coupe-feu pour la fabrication de joints coupe-feu, plus particulièrement des bourrelets coupe-feu composés d'une âme comprenant des fibres de roche et d'une enveloppe externe.The present invention relates to the technical field of firestop beads for the manufacture of firestop seals, more particularly firestop pads consisting of a core comprising rock fibers and an outer casing.

Il est connu dans le domaine de la construction de bâtiments et d'ouvrages d'art, tels que les hôpitaux ou immeubles industriels, de réaliser un joint coupe-feu pour éviter les risques de propagation de feu dans les joints de dilatation. Le plus souvent, un joint coupe-feu est réalisé avec un bourrelet en fibres minérales comme fond de joint et de mastic coupe-feu ou d'un couvre joint métallique. La fibre minérale la plus souvent utilisée, au vu de ses performances en tant qu'isolant thermique, de sa résistance au feu et de son prix est la fibre de roche. Elle est utilisée pour contrôler la propagation de la flamme et des gaz. La fibre de roche est une fibre minérale artificielle, naturellement incombustible, puisqu'il n'y a aucun agent chimique ajouté pour retarder sa combustion.He is known in the field of the construction of buildings and structures, such as hospitals or industrial buildings, to make a fire seal to avoid the risk of fire spreading in the expansion joints. Most often, a fire seal is made with a mineral fiber bead as bottom seal and fireproof sealant or a metal seal cover. The mineral fiber most often used, given its performance as a thermal insulator, its fire resistance and its price is rock fiber. It is used to control the spread of flame and gases. Rock fiber is an artificial mineral fiber, naturally incombustible, since there is no chemical agent added to retard its combustion.

La fibre de roche commence à se détériorer à partir de 1093°C. Les fibres de roche sont très courtes, de l'ordre de quelques millimètres.Rock fiber begins to deteriorate from 1093 ° C. The rock fibers are very short, of the order of a few millimeters.

On connaît des bourrelets coupe-feu composés d'une âme exclusivement en fibres de roche et d'une enveloppe externe. Les fibres ou laine de roche sont amenées sous forme de laine ou bourre dans un cône de collecte alimentant une tresseuse. L'enveloppe externe, résistante aux hautes températures, est tressée et recouvre ainsi un boudin formé de fibres de roche ayant une section et une masse linéique très irrégulières. Le bourrelet obtenu présente logiquement ces défauts. L'âme étant irrégulière, parce que réalisée à partir de fibres de roche en vrac sans cohésion, l'enveloppe externe tressée doit assurer à elle-seule la cohésion et le maintien de la forme longiligne du bourrelet. Elle représente ainsi un poids relatif important dans le poids total du bourrelet alors que l'âme assure l'essentiel de la fonction coupe-feu recherchée. De plus, ladite enveloppe externe ne peut empêcher le dégagement de poussières issues des fibres de roche en âme, ces dernières n'étant qu'agglomérées en vrac lors du processus de gainage. Pour tenter de pallier ces inconvénients, la couverture de l'âme par l'enveloppe externe est renforcée en faisant varier le titrage des fils tressés mais surtout en choisissant un pas de tressage plus faible, ce qui entraîne une diminution directe de la vitesse de tressage au détriment de la productivité et une augmentation en parallèle de la quantité de ladite enveloppe.Firestop beads consisting of a core exclusively made of rock fibers and an outer shell are known. The fibers or rockwool are fed in the form of wool or wad in a collection cone feeding a braider. The outer jacket, resistant to high temperatures, is braided and thus covers a flange formed of rock fibers having a section and a linear mass very irregular. The bead obtained logically presents these defects. The core being irregular, because made from unbound loose rock fibers, the braided outer shell must ensure itself cohesion and maintenance of the elongated shape of the bead. It thus represents a significant relative weight in the total weight of the bead while the core provides most of the desired fire function. In addition, said outer casing can not prevent the release of dust from rock fibers in the core, the latter being only agglomerated in bulk during the process of sheathing. In an attempt to overcome these disadvantages, the cover of the core by the outer casing is reinforced by varying the titration of the braided yarns but especially by choosing a lower braiding step, which results in a direct decrease in braiding speed. at the expense of productivity and a parallel increase in the amount of said envelope.

Les bourrelets connus présentent en outre deux inconvénients majeurs:

  • une plus grande fragilité aux manipulations et une absence totale de résilience. Une fois déformés ou fragilisés par les manipulations, ils conservent la forme ainsi modifiée.
The known beads also have two major disadvantages:
  • a greater fragility to manipulations and a total lack of resilience. Once deformed or weakened by manipulations, they retain the shape thus modified.

Ces inconvénients ont également pour conséquence qu'il est impossible de réaliser des bourrelets coupe-feu de faible diamètre à base de fibres de roche, c'est-à-dire ayant un diamètre inférieur à 20 mm.These disadvantages also have the consequence that it is impossible to make small-diameter firestop beads based on rock fibers, that is to say having a diameter less than 20 mm.

La présente invention a pour objet, selon un premier aspect, un bourrelet coupe-feu composé d'une âme comprenant des fibres de roche et d'une enveloppe externe résistante aux hautes températures palliant aux problèmes précités en ce que l'âme comporte de plus, en mélange intime avec les fibres de roche et en proportion minoritaire, des fibres supports frisées résistantes aux hautes températures ayant une longueur supérieure ou égale à 40 mm. Lesdites fibres de roche et fibres supports se présentent sous forme d'un ou plusieurs rubans cardés disposés parallèlement les uns aux autres selon la direction longitudinale dudit bourrelet.The subject of the present invention is, according to a first aspect, a fire-resistant bead consisting of a core comprising rock fibers and a high-temperature resistant outer shell that overcomes the aforementioned problems in that the core further comprises , in intimate mixture with the rock fibers and in a minor proportion, high temperature resistant crimped fibers having a length greater than or equal to 40 mm. Said rock fibers and support fibers are in the form of one or more carded ribbons arranged parallel to each other in the longitudinal direction of said bead.

On entend par fibres supports résistantes aux hautes températures, des fibres ininflammables et/ou qui se décomposent sous l'effet de la chaleur et sont aptes à résister à des températures au moins de l'ordre de 250°C, de préférence supérieure à 350°C.The term "high temperature resistant support fibers" means fibers which are nonflammable and / or which decompose under the effect of heat and are capable of withstanding temperatures of at least about 250.degree. C., preferably greater than 350.degree. ° C.

Toutes les valeurs chiffrées décrites dans le présent texte relatives au poids et à la masse linéique sont à interpréter comme étant à plus ou moins 10 % près. Les valeurs relatives au diamètre des bourrelets coupe-feu sont à interpréter comme étant à plus ou moins 10 % près.All numerical values described in this text relating to weight and linear density are to be interpreted as within plus or minus 10%. The values relating to the diameter of the fire beads are to be interpreted as within plus or minus 10%.

Les fibres de roche ne peuvent être cardées seules car elles sont beaucoup trop courtes. C'est le mérite de la demanderesse que d'avoir imaginé et vérifié qu'il est possible de carder des fibres de roche en les mélangeant avec une certaine quantité de fibres supports frisées d'au moins 40 mm. Ainsi, grâce à la présence de ces fibres supports frisées, les fibres de roche peuvent être véhiculées, cardées et récupérées sous forme d'un ruban de carde, d'aspect et de masse linéique réguliers. La longueur minimale de 40 mm des fibres supports n'est pas suffisante pour pouvoir carder des fibres de roche en mélange. Les fibres supports doivent également présenter une frisure afin d'entraîner les fibres de roche, ces dernières n'ayant en effet une longueur que de quelques millimètres. Lorsque les fibres supports présentent une longueur inférieure à 40 mm et qu'elles ne sont pas frisées, les fibres de roche sont insuffisamment maintenues et entrainées lors du cardage, de sorte que les pertes en fibres de roche, irrécupérables car sous forme de poussières, sont très importantes.Rock fibers can not be carded alone because they are much too short. It is the merit of the plaintiff to have imagined and verified that it is possible to card rock fibers by mixing them with a certain amount of crimped fiber fibers of at least 40 mm. Thus, thanks to the presence of these crimped support fibers, the rock fibers can be conveyed, carded and recovered in the form of a cardboard tape, of regular appearance and linear density. The minimum length of 40 mm of the support fibers is not sufficient to card mixed rock fibers. The support fibers must also have a crimp to drive the rock fibers, the latter having indeed a length of only a few millimeters. When the support fibers have a length of less than 40 mm and they are not crimped, the rock fibers are insufficiently maintained and driven during carding, so that the losses in rock fibers, unrecoverable because in the form of dust, are very important.

De préférence, les fibres supports ont une longueur comprise entre 40 mm et 120 mm.Preferably, the support fibers have a length of between 40 mm and 120 mm.

Les fibres de roche sélectionnées pour la fabrication des bourrelets sont de préférence choisies en sorte de présenter une faible biopersistance, telles que les fibres de roche commercialisées sous la marque Lapinus® par la société Rock Wool.The rock fibers selected for the manufacture of the beads are preferably selected so as to have a low biopersistence, such as the rock fibers sold under the trade name Lapinus® by Rock Wool.

L'enveloppe externe a pour fonction de maintenir ensemble le ou les rubans cardés et de conférer au bourrelet une section sensiblement circulaire régulière. La présente invention permettant de renforcer et d'améliorer la cohésion de l'âme, elle permet par conséquent de diminuer la masse linéique de l'enveloppe externe. L'âme ayant une masse linéique régulière, facilite l'opération de pose de l'enveloppe externe et permet l'obtention d'un bourrelet ayant une forme et une masse linéique également régulières.The outer envelope has the function of holding together the carded ribbons and to give the bead a substantially regular circular section. The present invention makes it possible to strengthen and improve the cohesion of the core, it consequently makes it possible to reduce the linear mass of the outer envelope. The core having a regular linear mass, facilitates the operation of laying the outer casing and allows obtaining a bead having a shape and a linear mass also regular.

Le bourrelet selon l'invention se présente sous la forme d'un boudin qui se caractérise par une cohésion nettement améliorée ainsi que par une excellente résilience lui permettant de conserver sa forme longiligne malgré les déformations subies lors de sa mise en oeuvre. Il présente de plus une très bonne souplesse, ce qui facilite sa manipulation et sa pose.The bead according to the invention is in the form of a bead which is characterized by a significantly improved cohesion as well as an excellent resilience allowing it to maintain its elongated shape despite the deformations suffered during its implementation. It also has a very good flexibility, which facilitates handling and installation.

Le bourrelet coupe-feu selon l'invention peut être mis en oeuvre seul ou avec un mastic, un couvre joint mécanique, un couvre joint à clipser ou un profilé souple d'obturation. Le bourrelet est notamment utilisé pour le traitement des joints verticaux et horizontaux nécessitant une protection coupe-feu, tels que les joints de sol, des murs et des plafonds, les joints entre éléments préfabriqués de façades, les joints entre nez de planchers et façades préfabriquées ; il peut être également utilisé dans les cloisons coupe-feu, dans les passages de gaines et conduits.The firestop bead according to the invention can be used alone or with a putty, a mechanical seal cover, a seal to clip or a flexible sealing profile. The bead is particularly used for the treatment of vertical and horizontal joints requiring fire protection, such as floor joints, walls and ceilings, joints between prefabricated facades, joints between floor nosings and prefabricated facades ; it can also be used in firewalls, in ducts and ducts.

Les joints coupe-feu équipés des bourrelets coupe-feu selon l'invention doivent satisfaire notamment à la norme EN 13501-2 classifications EI 120, El 180 ou EI 240.The firestop seals equipped with the firestop beads according to the invention must satisfy in particular the standard EN 13501-2 classifications EI 120, El 180 or EI 240.

Bien évidemment, le nombre de rubans cardés disposés en âme est fonction du diamètre et de la masse linéique du bourrelet visés.Of course, the number of carded ribbons arranged in a core is a function of the diameter and the linear density of the target bead.

Les proportions entre fibres de roche et fibres supports frisées résistantes aux hautes températures sont déterminées en fonction des propriétés au feu recherchées -dans le but de satisfaire aux normes règlementaires citées ci-dessus- et des contraintes de cardage pour la réalisation de rubans de carde.The proportions between rock fibers and crimped fibers resistant to high temperatures are determined according to the desired fire properties - in order to meet the regulatory standards mentioned above - and carding constraints for the realization of card ribbons.

De préférence, les fibres de roche représentent entre 60 % et 80 % en poids, du poids total du bourrelet. La demanderesse a déterminé que quelque soit le diamètre final visé du bourrelet et pour que ce dernier satisfasse aux normes réglementaires citées ci-dessus, la proportion en poids de fibres de roche par rapport au poids du bourrelet est comprise entre 60 % et 80 %.Preferably, the rock fibers represent between 60% and 80% by weight, of the total weight of the bead. The Applicant has determined that whatever the target diameter of the bead and that the latter meets the regulatory standards mentioned above, the proportion by weight of rock fibers relative to the weight of the bead is between 60% and 80%.

Dans une variante, la proportion en poids de fibres de roche représente environ 80 % à 90 % du poids total d'un ruban de carde et la proportion en poids de fibres supports frisées représente environ 10 % à 20 % du poids total d'un ruban de carde.Alternatively, the weight proportion of rock fibers is about 80% to 90% of the total weight of a card sliver and the proportion by weight of crimped fiber fibers is about 10% to 20% of the total weight of a sliver. cardboard ribbon.

La demanderesse a remarqué que si la quantité de fibres supports frisées est insuffisante, les pertes en fibres de roche sont trop importantes lors des opérations de cardage. De plus, les pertes en fibres de roche ne peuvent être recyclées car elles se présentent sous forme de poussières.The Applicant has noticed that if the amount of crimped fiber fibers is insufficient, the losses in rock fibers are too great during the carding operations. In addition, rock fiber losses can not be recycled because they are in the form of dust.

Dans une variante, les fibres de roche représentent au moins 75 % en poids du poids total d'un bourrelet coupe-feu ayant un diamètre supérieur ou égal à 20 mm.In a variant, the rock fibers represent at least 75% by weight of the total weight of a fire bead having a diameter greater than or equal to 20 mm.

La proportion en poids de fibres de roche par rapport au poids total d'un bourrelet selon l'invention ayant un diamètre supérieur ou égal à 20 mm est de l'ordre de 75 % à 80 %. Avantageusement, la proportion en poids de fibres de roche est sensiblement constante quelque soit le diamètre du bourrelet pourvu que ce dernier ait un diamètre supérieur ou égal à 20 mm, ce qui permet d'obtenir des propriétés de résistance au feu également constantes quelque soit le diamètre dudit bourrelet contrairement aux bourrelets de l'état de la technique.The proportion by weight of rock fibers relative to the total weight of a bead according to the invention having a diameter greater than or equal to 20 mm is of the order of 75% to 80%. Advantageously, the proportion by weight of rock fibers is substantially constant regardless of the diameter of the bead provided that the latter has a diameter greater than or equal to 20 mm, which allows to obtain even constant fire resistance properties whatever the diameter of said bead unlike the beads of the state of the art.

Dans une variante, les fibres de roche représentent au moins 60 % en poids du poids total d'un bourrelet coupe-feu ayant un diamètre inférieur à 20 mm.In a variant, the rock fibers represent at least 60% by weight of the total weight of a fire bead having a diameter of less than 20 mm.

Avantageusement, la présentation des fibres de roche sous forme de ruban de carde permet la réalisation de bourrelet de faible diamètre jusqu'alors impossible dans l'état de la technique. Compte tenu du faible diamètre, et de la présence nécessaire de l'enveloppe externe bien que minimisée, par rapport à l'état actuel de la technique, la masse linéique de l'âme est logiquement plus faible rapportée à la masse linéique totale du bourrelet.Advantageously, the presentation of the rock fibers in the form of cardboard ribbon makes it possible to produce a bead of small diameter hitherto impossible in the state of the art. Given the small diameter, and the necessary presence of the outer shell although minimized, compared to the current state of the art, the linear density of the core is logically lower compared to the total linear density of the bead .

Dans une variante, l'enveloppe externe est formée, notamment par tressage, de fils résistants aux hautes températures, notamment de fils de verre.In a variant, the outer casing is formed, in particular by braiding, of son resistant to high temperatures, in particular glass son.

On entend par fils résistants aux hautes températures, des fils filés de fibres, des monofilaments ou fils multifilamentaires ininflammables et/ou qui se décomposent sous l'effet de la chaleur et sont aptes à résister à des températures au moins de l'ordre de 350°C.The term "high-temperature-resistant yarns" means fibers spun from fibers, non-flammable monofilaments or multifilament yarns and / or which decompose under the effect of heat and are capable of withstanding temperatures of at least about 350.degree. ° C.

L'enveloppe externe est appliquée sur l'âme sous une tension constante, de sorte qu'elle est correctement plaquée contre l'âme et ce de façon uniforme sur toute la longueur du bourrelet, ce qui évite les fils distendus se projetant latéralement du bourrelet et donc l'accrochage et l'effilochage de ladite enveloppe externe. La manipulation du bourrelet selon l'invention est ainsi facilitée, en particulier s'agissant de fils multifilamentaires, notamment en verre.The outer jacket is applied to the core at a constant tension so that it is properly pressed against the core evenly over the entire length of the bead, which avoids the distended son projecting laterally bead and thus the attachment and fraying of said outer casing. Manipulation of the bead according to the invention is thus facilitated, in particular with regard to multifilament yarns, in particular made of glass.

Dans une variante, l'enveloppe externe représente de l'ordre de 7 % à 10 % en poids du poids total d'un bourrelet ayant un diamètre supérieur ou égal à 20 mm.In a variant, the outer envelope represents from about 7% to 10% by weight of the total weight of a bead having a diameter greater than or equal to 20 mm.

L'enveloppe externe du bourrelet obtenu selon l'invention ayant un diamètre supérieur ou égal à 20 mm présente un pas plus important que celles des bourrelets ayant un diamètre du même ordre connus de l'état de la technique puisqu'il n'a pas besoin d'une enveloppe externe aussi couvrante que les enveloppes de l'état de la technique, du fait de la présentation de l'âme sous forme de ruban(s) de carde. La vitesse de tressage en est ainsi considérablement améliorée, à titre d'exemple elle peut être multipliée par deux.The outer casing of the bead obtained according to the invention having a diameter greater than or equal to 20 mm has a greater pitch than those of beads having a diameter of the same order known from the state of the art since it has not need an outer envelope as covering as the envelopes of the state of the art, because of the presentation of the soul in the form of tape (s) card. The braiding speed is thus considerably improved, for example it can be multiplied by two.

Le pas selon l'invention est défini comme étant la distance séparant deux croisures de fils disposées selon une droite passant par la direction longitudinale du bourrelet.The step according to the invention is defined as the distance separating two son cracks arranged along a straight line passing through the longitudinal direction of the bead.

A titre d'exemple, un bourrelet coupe-feu de l'état de la technique ayant un diamètre de l'ordre de 20 mm comporte une enveloppe externe représentant en poids environ 40 % du poids total dudit bourrelet contre environ 8,5 % pour un bourrelet obtenu selon l'invention. L'enveloppe externe n'étant pas réalisable à base de fibres de roche mais nécessairement dans des fils résistants aux hautes températures plus onéreux que les fibres de roche, les bourrelets selon l'invention représentent un gain important.For example, a firestop bead of the state of the art having a diameter of the order of 20 mm comprises an outer envelope representing by weight about 40% of the total weight of said bead against about 8.5% for a bead obtained according to the invention. As the outer casing is not feasible based on rock fibers but necessarily on high temperature resistant yarns which are more expensive than rock fibers, the beads according to the invention represent a significant gain.

Dans une variante, l'enveloppe externe représente de l'ordre de 10 % à 25 % en poids du poids total d'un bourrelet ayant un diamètre inférieur à 20 mm.In a variant, the outer envelope represents of the order of 10% to 25% by weight of the total weight of a bead having a diameter of less than 20 mm.

Compte tenu du faible diamètre du bourrelet, la masse linéique de l'âme est également faible de sorte que la proportion en poids de l'enveloppe externe par rapport au poids du bourrelet est logiquement plus importante.Given the small diameter of the bead, the linear density of the core is also low so that the proportion by weight of the outer envelope relative to the weight of the bead is logically greater.

Avantageusement, la présentation des fibres de roche sous forme de rubans de carde permet la réalisation de bourrelet coupe-feu de faible diamètre, et d'optimiser la proportion en poids d'enveloppe externe par rapport au poids du bourrelet et corrélativement le coût de fabrication dudit bourrelet.Advantageously, the presentation of the rock fibers in the form of card ribbons makes it possible to produce a small diameter firestop bead, and to optimize the proportion by weight of the outer casing with respect to the weight of the bead and, correlatively, the cost of manufacture. said bead.

Dans une variante, les fibres supports frisées résistantes aux hautes températures sont choisies seules ou en mélange parmi les fibres suivantes : fibres de méta-aramide, para-aramide, ou copolymère de para-aramide et de méta-aramide, verre, de préférence du type E, fibres phénoliques telles que celles commercialisées sous la marque Kynol®, fibres de carbone.In a variant, the high temperature-resistant crimped support fibers are chosen alone or as a mixture from the following fibers: meta-aramid fibers, para-aramid fibers, or para-aramid and meta-aramid copolymers, glass, preferably type E, phenolic fibers such as those marketed under the trademark Kynol®, carbon fibers.

Dans une variante, le bourrelet comprend en âme un ou plusieurs fils résistants aux hautes températures disposés parallèlement à la direction longitudinale dudit bourrelet.In a variant, the bead comprises in its core one or more high temperature resistant wires arranged parallel to the longitudinal direction of said bead.

On entend par fils résistants aux hautes températures, des fils filés de fibres, des monofilaments ou fils multifilamentaires ininflammables et/ou qui se décomposent sous l'effet de la chaleur et sont aptes à résister à des températures au moins de l'ordre de 250°C, de préférence supérieure à 350°C.The term "high-temperature-resistant yarns" means spun yarns of fibers, non-flammable monofilaments or multifilament yarns and / or which decompose under the effect of heat and are capable of withstanding temperatures at least of the order of 250 ° C, preferably greater than 350 ° C.

Cette disposition permet de renforcer et améliorer la cohésion de l'âme, diminuant ainsi la masse linéique d'enveloppe externe nécessaire pour maintenir les rubans et le ou les fils ensemble, ainsi que former une section sensiblement circulaire régulière.This arrangement makes it possible to strengthen and improve the cohesion of the core, thus reducing the linear mass of external envelope required to hold the ribbons and the wire or wires together, as well as to form a substantially regular circular section.

De préférence, le ou les fils sont disposés au centre de l'âme et entourés par le ou les rubans cardés.Preferably, the son or son are arranged in the center of the soul and surrounded by the carded or ribbons.

Les fils résistants aux hautes températures sont choisis, seuls ou en mélange, parmi les fils suivants : fils de méta-aramide, para-aramide, ou copolymère de para-aramide et de méta-aramide, verre, notamment du type E, fils phénoliques tels que ceux commercialisés sous la marque Kynol®, fils en carbone.The high-temperature resistant yarns are chosen, alone or as a mixture, from the following yarns: meta-aramid yarn, para-aramid, or para-aramid and meta-aramid copolymer, glass, especially of the E type, phenolic yarns such as those marketed under the Kynol® brand, carbon threads.

Dans une variante, l'âme comporte plusieurs rubans, de préférence au moins 4 rubans, d'un mélange de 85 % de fibres de roche en poids et de 15 % de fibres supports frisées, notamment de fibres de para-aramide, chaque ruban ayant une masse linéique allant de 15 g/m à 50 g/m.In a variant, the core comprises several ribbons, preferably at least 4 ribbons, a mixture of 85% rock fibers by weight and 15% of crimped fibers, in particular para-aramid fibers, each ribbon having a linear density ranging from 15 g / m to 50 g / m.

La demanderesse a déterminé que ce ratio de fibres de roche par rapport aux fibres supports frisées est idéal pour minimiser les pertes en fibres de roche lors du cardage, optimiser la quantité de fibres supports et donc le coût d'un ruban de carde.The Applicant has determined that this ratio of rock fibers to crimped fiber fibers is ideal for minimizing rock fiber losses during carding, optimizing the amount of support fibers and therefore the cost of a card sliver.

L'invention a pour objet, selon un deuxième aspect, un procédé de fabrication d'un bourrelet coupe-feu, pour la fabrication de joints coupe-feu, composé d'une âme comprenant des fibres de roche et d'une enveloppe externe, et comportant les étapes suivantes :

  1. a) une première étape de cardage de fibres de roche mélangées intimement et en proportion majoritaire avec des fibres supports frisées ayant une longueur supérieure ou égale à 40 mm et résistantes aux hautes températures en sorte de former un ruban cardé ;
  2. b) une seconde étape consistant à alimenter sous tension un ou plusieurs rubans cardés disposés parallèlement les uns aux autres sur une machine de gainage en sorte de gainer l'âme formée du ou desdits rubans assemblés.
The object of the invention is, according to a second aspect, a method for manufacturing a firestop, for the manufacture of firestop joints, composed of a core comprising rock fibers and an outer casing, and having the following steps:
  1. a) a first step of carding rock fibers mixed intimately and in a majority proportion with crimped support fibers having a length greater than or equal to 40 mm and resistant to high temperatures so as to form a carded ribbon;
  2. b) a second step of feeding under tension one or more carded ribbons arranged parallel to each other on a cladding machine so as to sheath the core formed of said ribbons or assembled.

Un ou plusieurs fils résistants aux hautes températures, tels que décrits ci-dessus, peuvent être également alimentés sous tension parallèlement aux rubans cardés lors de la second étape. Les dits fils sont de préférence agencés par rapport aux rubans de carde lors de l'alimentation en sorte de se retrouver au centre de l'âme du bourrelet, les rubans de carde formant la périphérie de l'âme.One or more son resistant to high temperatures, as described above, can also be powered under tension parallel to the ribbons carded in the second step. Said yarns are preferably arranged with respect to the card ribbons during feeding so as to end up in the center of the core of the bead, the card ribbons forming the periphery of the core.

Dans une variante, la seconde étape est effectuée sur une tresseuse sur laquelle on aura défini le nombre de fuseaux nécessaire pour assurer un maintien suffisant du bourrelet et une résilience satisfaisante, de même que la jauge requise pour obtenir les dimensions du bourrelet recherchées. La jauge est ici définie comme étant le diamètre interne de la pièce annulaire à travers laquelle les fils formant l'enveloppe externe se rejoignent et viennent s'appliquer sur l'âme.In a variant, the second step is performed on a braider on which it will be defined the number of bobbins necessary to ensure sufficient maintenance of the bead and satisfactory resilience, as well as the gauge required to obtain the dimensions of the bead sought. The gauge is here defined as the internal diameter of the annular piece through which the son forming the outer envelope meet and come to apply to the core.

La présente invention sera mieux comprise à la lecture de deux exemples de réalisation, cités à titre non limitatif, et illustrés dans les figures annexées à la présente et dans lesquelles :

  • la figure 1 est une représentation schématique d'un premier exemple de bourrelet coupe-feu selon l'invention ;
  • la figure 2 est une représentation schématique d'un second exemple de bourrelet coupe-feu selon l'invention ;
  • la figure 3 est une représentation en section selon le plan de coupe III-III représenté à la figure 2 ;
  • la figure 4 est une représentation schématique d'un joint coupe-feu équipé d'un bourrelet coupe-feu selon l'invention.
The present invention will be better understood on reading two exemplary embodiments, cited in a non-limiting manner, and illustrated in the figures appended hereto and in which:
  • the figure 1 is a schematic representation of a first example of a fire bead according to the invention;
  • the figure 2 is a schematic representation of a second example of a fire bead according to the invention;
  • the figure 3 is a representation in section according to the sectional plane III-III shown in FIG. figure 2 ;
  • the figure 4 is a schematic representation of a firestop seal equipped with a fire barrier according to the invention.

Le bourrelet coupe feu 1 est composé d'une âme 2 et d'une enveloppe externe 3. L'âme 2 comporte des fibres de roche 4 en mélange intime avec des fibres supports frisées 5 résistantes aux hautes températures ayant une longueur supérieure ou égale à 40 mm. L'âme 2 se présente sous forme de plusieurs rubans cardés disposés parallèlement les uns aux autres selon la direction longitudinale (L) dudit bourrelet 1. L'âme 2 comprend dans cet exemple précis deux rubans cardés ayant chacun une masse linéique de l'ordre de 15 g/m. Chaque ruban comprend en poids 85 % de fibres de roche pour 15 % de fibres de para-aramide. Dans cet exemple précis, les fibres supports frisées 5 ont une longueur moyenne allant de 40 mm à 80 mm. Il peut notamment s'agir de fibres de recyclage, de longueur moyenne plus faible que la longueur d'origine, mais qui présentent l'avantage d'être moins chères. Les fibres de roche représentent environ 64 % en poids du poids total du bourrelet 1. L'enveloppe externe 3 est formée d'une tresse 6 composée de fils multifilamentaires en verre 7, notamment du type E, ayant un titrage allant de 500 tex à 2000 tex, dans cet exemple précis de l'ordre de 650 tex. Le pas 8 de la tresse est de 17 mm environ. Le bourrelet 1 a une masse linéique de l'ordre de 45 g/m +/- 10 % et une section sensiblement circulaire ayant un diamètre de l'ordre de 10 mm +/- 10 %. L'enveloppe externe 3 représente environ 25 % en poids du poids total du bourrelet 1. L'enveloppe externe 3 est tressée sur un métier à tresser comportant 12 fuseaux dont seulement 6 fuseaux comportent une bobine de fils multifilamentaires 7. Les deux rubans cardés sont alimentés sous tension à une tresseuse et ce en sorte d'être disposés parallèlement lorsqu'ils passent au centre la tresseuse. L'âme 2 étant d'aspect et de masse linéique réguliers, la tresse 6 a simplement pour fonction de maintenir lesdits rubans ensemble et de conférer une section sensiblement circulaire au bourrelet 1, aidée en cela par la jauge de tressage. Le pas de tressage plus important, permis par la présente invention, permet de réduire la quantité relative de l'enveloppe externe et d'accélérer la vitesse du métier à tresser. Dans cet exemple précis, la vitesse de la tresseuse est de l'ordre de 75 m/heure.The fire bead 1 is composed of a core 2 and an outer shell 3. The core 2 comprises rock fibers 4 intimately mixed with high temperature resistant crimped fibers having a length greater than or equal to 40 mm. The core 2 is in the form of several carded ribbons arranged parallel to each other in the longitudinal direction (L) of said bead 1. The core 2 comprises in this specific example two carded ribbons each having a linear density of the order 15 g / m. Each ribbon comprises 85% by weight of rock fibers for 15% of para-aramid fibers. In this particular example, the crimped support fibers 5 have an average length ranging from 40 mm to 80 mm. It may in particular be recycling fibers, of average length smaller than the original length, but which have the advantage of being less expensive. The rock fibers represent approximately 64% by weight of the total weight of the bead 1. The outer envelope 3 is formed of a braid 6 composed of glass multifilament yarns 7, in particular of the E type, having a titration ranging from 500 tex to 2000 tex, in this specific example of the order of 650 tex. Step 8 of the braid is about 17 mm. The bead 1 has a linear density of the order of 45 g / m +/- 10% and a substantially circular section having a diameter of the order of 10 mm +/- 10%. The outer casing 3 represents about 25% by weight of the total weight of the bead 1. The outer casing 3 is braided on a 12-spindle braiding machine of which only 6 spindles comprise a spool of multifilament yarns 7. The two carded ribbons are fed with tension to a braider and this so as to be arranged parallel when they pass in the center braider. Since the core 2 is of regular appearance and linear density, the purpose of the braid 6 is simply to hold said ribbons together and to give a substantially circular section to the bead 1, aided thereby by the braiding gage. The larger braiding pitch, allowed by the present invention, makes it possible to reduce the relative amount of the outer casing and to speed up the speed of the braiding machine. In this specific example, the speed of the braider is of the order of 75 m / hour.

Le second exemple de bourrelet 9 selon la figure 2 diffère du premier exemple de bourrelet 1 en ce que l'âme 10 est composée de cinq rubans cardés 11 et de deux fils multifilamentaires de renfort 12 dans un matériau résistant aux hautes températures, notamment du verre de type E. Lesdits fils de renfort 12 ont un titrage allant de 500 tex à 3000 tex, de préférence de l'ordre de 2000 tex, et représentent environ 2 % en poids du poids total du bourrelet 9. Les rubans cardés 11 comprennent un mélange de fibres de roche et de fibres supports résistantes aux hautes températures identique à celui décrit dans le premier exemple. Les rubans cardés 11 se décomposent en quatre rubans de 40 g/m et un ruban de 20 g/m. Les fibres supports frisées représentent environ 13 % en poids du poids total du bourrelet 9. Le bourrelet 9 présente une masse linéique de l'ordre de 210 g/m +/-10 % et une section sensiblement circulaire ayant un diamètre 9a de l'ordre 30 mm +/- 10 %. L'enveloppe externe 13 est également tressée et représente environ 9 % du poids total du poids du bourrelet 9. La section transversale du bourrelet 9 représentée à la figure 3 comprend six intersections 14 de fils multifilamentaires résistants aux hautes températures 16 permettant de maintenir ensemble les rubans cardés 11 et les fils de renfort 12. L'enveloppe externe 13 a de préférence un pas 15 de l'ordre de 12,5 mm. Pour comparaison, l'enveloppe externe d'un bourrelet de l'état de la technique équivalent ayant un diamètre de l'ordre de 30 mm représente environ 22 % en poids du poids total dudit bourrelet ce qui représente un surcoût important et limite les vitesses de gainage. Ce bourrelet présente également les inconvénients développés ci-dessus que sont notamment le manque de résilience, de cohésion, la tendance à l'effilochage et un aspect très irrégulier.The second example of bead 9 according to the figure 2 differs from the first example of bead 1 in that the core 10 is composed of five carded ribbons 11 and two multifilament reinforcing son 12 in a high temperature resistant material, in particular type E glass. a titration ranging from 500 tex to 3000 tex, preferably of the order of 2000 tex, and represent about 2% by weight of the total weight of the bead 9. The carded ribbons 11 comprise a mixture of rock fibers and resistant fiber supports at high temperatures identical to that described in the first example. The carded ribbons 11 are broken down into four ribbons of 40 g / m and a ribbon of 20 g / m. The crimped support fibers represent about 13% by weight of the total weight of the bead 9. The bead 9 has a linear density of the order of 210 g / m +/- 10% and a substantially circular section having a diameter 9a of the order 30 mm +/- 10%. The outer casing 13 is also braided and represents about 9% of the total weight of the bead 9. The cross section of the bead 9 shown in FIG. figure 3 comprises six intersections 14 of high temperature resistant multifilament yarns 16 for holding together the carded ribbons 11 and the reinforcing yarns 12. The outer envelope 13 preferably has a pitch of about 12.5 mm. For comparison, the outer casing of a bead of the prior art having a diameter of the order of 30 mm represents about 22% by weight of the total weight of said bead which represents a significant additional cost and limits the cladding speeds. This bead also has the drawbacks developed above which include the lack of resilience, cohesion, the tendency to fraying and a very irregular appearance.

La figure 4 illustre un bourrelet selon le premier ou second exemple de réalisation 1,9 disposé dans un joint de sol 20 avec un couvre joint mécanique 21. Le diamètre du bourrelet 1,9 est choisi en fonction de la taille du joint de sol 20 à obturer, de préférence le diamètre du bourrelet 1,9 est légèrement supérieur à celui du joint de sol 20. Généralement, les parois du joint de sol 20 sont revêtues d'une couche de colle, par exemple une colle à base de silicate incombustible, en sorte que le bourrelet 1,9 soit parfaitement solidarisé dans la position selon laquelle l'opérateur l'a placé. Le choix du diamètre du bourrelet 1,9 est également déterminé afin de conserver une compression de 30 % environ lors de l'ouverture maximum du joint en cas d'incendie.The figure 4 illustrates a bead according to the first or second embodiment 1.9 disposed in a ground joint 20 with a mechanical seal cover 21. The diameter of the bead 1.9 is chosen according to the size of the seal 20 to be closed, preferably the diameter of the bead 1.9 is slightly greater than that of the ground joint 20. Generally, the walls of the ground joint 20 are coated with a layer of glue, for example an incombustible silicate-based glue, so that the bead 1.9 is perfectly secured in the position according to which the operator has placed. The choice of the diameter of the bead 1.9 is also determined to maintain a compression of about 30% during the maximum opening of the seal in case of fire.

La technologie de fabrication du bourrelet selon la présente invention permet de ce point de vue un progrès certain, en lui conférant une résilience nettement supérieure. Le bourrelet 1,9 assure sa fonction coupe-feu en ralentissant la propagation du feu et des gaz selon la direction F.The manufacturing technology of the bead according to the present invention from this point of view a certain progress, giving it a much higher resilience. The bead 1.9 ensures its fire function by slowing the spread of fire and gases in the direction F.

Claims (12)

Bourrelet coupe-feu (1,9) pour la fabrication de joints coupe-feu composé d'une âme (2,10) comprenant des fibres de roche (4) et d'une enveloppe externe (3,13) résistante aux hautes températures, caractérisé en ce que l'âme (2,10) comporte de plus, en mélange intime avec les fibres de roche (4) et en proportion minoritaire, des fibres supports frisées (5) résistantes aux hautes températures ayant une longueur supérieure ou égale à 40 mm, et en ce que lesdites fibres de roche (4) et fibres supports (5) se présentent sous forme d'un ou plusieurs rubans cardés (11) disposés parallèlement les uns aux autres selon la direction longitudinale (L) dudit bourrelet (1,9).Fire bumper (1,9) for the manufacture of fire-resistant seals consisting of a core (2,10) comprising rock fibers (4) and a high-temperature resistant outer casing (3,13) characterized in that the core (2, 10) further comprises, in intimate mixing with the rock fibers (4) and in a minor proportion, high temperature resistant crimped fibers (5) having a length greater than or equal to at 40 mm, and in that said rock fibers (4) and support fibers (5) are in the form of one or more carded ribbons (11) arranged parallel to each other in the longitudinal direction (L) of said bead (1.9). Bourrelet coupe-feu (1,9) selon la revendication 1, caractérisé en ce que la proportion en poids de fibres de roche (4) représente environ 80 % à 90 % du poids total d'un ruban de carde (11) et en ce que la proportion en poids de fibres supports frisées (5) représente environ 10% à 20% du poids total d'un ruban de carde (11).Fireproof bead (1,9) according to claim 1, characterized in that the proportion by weight of rock fibers (4) is approximately 80% to 90% of the total weight of a cardboard ribbon (11) and in that the proportion by weight of crimped fibers supports (5) is about 10% to 20% of the total weight of a sliver (11). Bourrelet coupe-feu (9) selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que les fibres de roche représentent au moins 75 % en poids du poids total dudit bourrelet (9) ayant un diamètre supérieur ou égal à 20 mm.Fire bead (9) according to either of Claims 1 and 2, characterized in that the rock fibers represent at least 75% by weight of the total weight of said bead (9) having a diameter greater than or equal to at 20 mm. Bourrelet coupe-feu (9) selon l'une des revendications 1 à 3, caractérisé en ce que l'enveloppe externe (13) représente environ 7 % à 10 % en poids du poids total dudit bourrelet (9) ayant un diamètre supérieur ou égal à 20 mm.Fire bumper (9) according to one of claims 1 to 3, characterized in that the outer casing (13) is approximately 7% to 10% by weight of the total weight of said bead (9) having a larger diameter or equal to 20 mm. Bourrelet coupe-feu (1) selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que les fibres de roche (4) représentent au moins 60 % en poids du poids total dudit bourrelet (1) ayant un diamètre inférieur à 20 mm.Fire bead (1) according to either of Claims 1 and 2, characterized in that the rock fibers (4) represent at least 60% by weight of the total weight of said bead (1) having a diameter less than 20 mm. Bourrelet coupe-feu (1) selon l'une des revendications 1,2 et 5, caractérisé en ce que l'enveloppe externe (3) représente environ 10 % à 25 % en poids du poids total dudit bourrelet (1) ayant un diamètre inférieur à 20 mm.Fireproof bead (1) according to one of claims 1, 2 and 5, characterized in that the outer casing (3) represents approximately 10% to 25% by weight of the total weight of said bead (1) having a diameter less than 20 mm. Bourrelet coupe-feu (1,9) selon les revendications 1 à 6, caractérisé en ce que l'enveloppe externe (3,13) est formée, notamment par tressage, de fils résistants aux hautes températures (7,16), notamment de fils de verre.Fireproof bead (1,9) according to Claims 1 to 6, characterized in that the outer casing (3, 13) is formed, in particular by braiding, of high-temperature-resistant yarns (7, 16), in particular of glass wires. Bourrelet coupe-feu (1,9) selon l'une des revendications 1 à 7, caractérisé en ce que les fibres supports frisées (5) résistantes aux hautes températures sont choisies seules ou en mélange parmi les fibres suivantes : fibres de méta-aramide, para-aramide, ou copolymère de para-aramide et de méta-aramide, fibres phénoliques telles que celles commercialisées sous la marque Kynol®, fibres de verre, fibres de carbone.Fire-resistant bead (1,9) according to one of Claims 1 to 7, characterized in that the high-temperature resistant crimped fibers (5) are chosen alone or as a mixture from the following fibers: meta-aramid fibers para-aramid, or copolymer of para-aramid and meta-aramid, phenolic fibers such as those sold under the Kynol® brand, glass fibers, carbon fibers. Bourrelet coupe-feu (9) selon l'une des revendications 1 à 8, caractérisé en ce qu'il comprend en âme (10) un ou plusieurs fils résistants aux hautes températures (12) disposés parallèlement à la direction longitudinale dudit bourrelet (9).Fire bead (9) according to one of claims 1 to 8, characterized in that it comprises in its core (10) one or more high temperature resistant wires (12) arranged parallel to the longitudinal direction of said bead (9). ). Bourrelet coupe-feu (1,9) selon l'une des revendications 1 à 9, caractérisé en ce que l'âme comporte plusieurs rubans d'un mélange en poids de 85 % de fibres de roche (4) et de 15 % en poids de fibres supports frisées (3), chaque ruban (11) ayant une masse linéique allant de 15 g/m à 50 g/m.Fireproof bead (1,9) according to one of claims 1 to 9, characterized in that the core comprises several ribbons of a mixture by weight of 85% rock fibers (4) and 15% by weight. weight of crimped support fibers (3), each ribbon (11) having a linear density ranging from 15 g / m to 50 g / m. Procédé de fabrication d'un bourrelet coupe-feu (1,9) pour la fabrication de joints coupe-feu feu composé d'une âme (2,10) comprenant des fibres de roche (4) et d'une enveloppe externe (3,13) caractérisé en ce qu'il comprend : - une première étape de cardage de fibres de roche (4) mélangées intimement et en proportion majoritaire avec des fibres supports frisées (5) ayant une longueur supérieure ou égale à 40 mm et résistantes aux hautes températures en sorte de former un ruban cardé (11) ; - une seconde étape consistant à alimenter sous tension un ou plusieurs rubans (11) disposés parallèlement les uns aux autres sur une machine de gainage en sorte de gainer l'âme (2,10) formée du ou desdits rubans (11) assemblés. A method of manufacturing a firestop (1,9) for the manufacture of firestop fire joints composed of a core (2,10) comprising rock fibers (4) and an outer shell (3) , 13) characterized in that it comprises: - A first step of carding rock fibers (4) intimately mixed and in a majority proportion with crimped fiber fibers (5) having a length greater than or equal to 40 mm and resistant to high temperatures so as to form a carded ribbon (11). ); - A second step of supplying power to one or more strips (11) arranged parallel to each other on a cladding machine so as to shroud the core (2,10) formed of said ribbons (11) assembled. Procédé selon la revendication 11, caractérisé en ce que la seconde étape est effectuée sur une tresseuse.Method according to claim 11, characterized in that the second step is performed on a braider.
EP10156940A 2009-03-19 2010-03-18 Fire-resistant strip and method of manufacturing a fire-resitant strip Not-in-force EP2230360B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0951760A FR2943257B1 (en) 2009-03-19 2009-03-19 BOURRELET FIREWALL

Publications (2)

Publication Number Publication Date
EP2230360A1 true EP2230360A1 (en) 2010-09-22
EP2230360B1 EP2230360B1 (en) 2012-05-23

Family

ID=41278762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10156940A Not-in-force EP2230360B1 (en) 2009-03-19 2010-03-18 Fire-resistant strip and method of manufacturing a fire-resitant strip

Country Status (2)

Country Link
EP (1) EP2230360B1 (en)
FR (1) FR2943257B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014122157A1 (en) * 2013-02-07 2014-08-14 Lm Wp Patent Holding A/S Limp, elongate element with glass staple fibres
WO2016026743A1 (en) * 2014-08-20 2016-02-25 Gv2 International - Veda France Beaded fire-resistant joint structure
FR3032985A1 (en) * 2015-02-25 2016-08-26 Gv2 Int - Veda France STRUCTURE OF JOINT FIRE CUTTING IN BUDDING, IN PARTICULAR FOR THE REAL ESTATE CONSTRUCTION INDUSTRY
FR3075057A1 (en) * 2017-12-14 2019-06-21 A.D.I. FIRE CORD COMPRISING AN EXTERNAL ENVELOPE OF PLASTIC FILM, ELASTOMER, NEEDLE FELT OR NON-WOVEN FABRIC

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066414A2 (en) * 1981-05-20 1982-12-08 E.I. Du Pont De Nemours And Company Filter of poly(tetrafluoroethylene)
US4622251A (en) * 1985-01-18 1986-11-11 Backer Rod Manufacturing & Supply Co. Non-combustible filler rod for providing fire tight joint packing
WO2005111289A1 (en) * 2004-04-30 2005-11-24 E.I. Dupont De Nemours And Company Fire blocker fiber composition, high loft web structures, and articles made therefrom
EP1855346A1 (en) * 2004-11-04 2007-11-14 Fuji Corporation Precursor felt for electroconductive material for electrode and method for producing electroconductive material for electrode

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066414A2 (en) * 1981-05-20 1982-12-08 E.I. Du Pont De Nemours And Company Filter of poly(tetrafluoroethylene)
US4622251A (en) * 1985-01-18 1986-11-11 Backer Rod Manufacturing & Supply Co. Non-combustible filler rod for providing fire tight joint packing
WO2005111289A1 (en) * 2004-04-30 2005-11-24 E.I. Dupont De Nemours And Company Fire blocker fiber composition, high loft web structures, and articles made therefrom
EP1855346A1 (en) * 2004-11-04 2007-11-14 Fuji Corporation Precursor felt for electroconductive material for electrode and method for producing electroconductive material for electrode

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014122157A1 (en) * 2013-02-07 2014-08-14 Lm Wp Patent Holding A/S Limp, elongate element with glass staple fibres
US20150368861A1 (en) * 2013-02-07 2015-12-24 Lm Wp Patent Holding A/S Limp, Elongate Element with Glass Staple Fibres
WO2016026743A1 (en) * 2014-08-20 2016-02-25 Gv2 International - Veda France Beaded fire-resistant joint structure
FR3024947A1 (en) * 2014-08-20 2016-02-26 Gv2 Internat Veda France STRUCTURE OF JOINT FIRE SHUTTER
FR3032985A1 (en) * 2015-02-25 2016-08-26 Gv2 Int - Veda France STRUCTURE OF JOINT FIRE CUTTING IN BUDDING, IN PARTICULAR FOR THE REAL ESTATE CONSTRUCTION INDUSTRY
FR3075057A1 (en) * 2017-12-14 2019-06-21 A.D.I. FIRE CORD COMPRISING AN EXTERNAL ENVELOPE OF PLASTIC FILM, ELASTOMER, NEEDLE FELT OR NON-WOVEN FABRIC

Also Published As

Publication number Publication date
FR2943257B1 (en) 2011-04-15
FR2943257A1 (en) 2010-09-24
EP2230360B1 (en) 2012-05-23

Similar Documents

Publication Publication Date Title
EP2230360B1 (en) Fire-resistant strip and method of manufacturing a fire-resitant strip
FR2733778A1 (en) SEAL FOR CONSTRUCTION ELEMENT
CA2620221C (en) Reinforced elongated elements, such as tubes, method and device for producing same and use thereof
CA2749829A1 (en) High voltage electric transmission cable
WO2014128422A1 (en) Flexible pipe for transporting hydrocarbons having an outer reinforced sealed sheath
FR2926640A1 (en) OPTICAL FIBER SHEATHED AND TELECOMMUNICATION CABLE
WO2008049703A1 (en) Fire-proof cover
EP2467524B1 (en) Textile armature of continuous glass filaments
EP1646590B1 (en) Mineral fibre-based sandwich structure and method for the production thereof
EP3099860B1 (en) Reinforced stabilisation strip for reinforced embankment structures, with a functionalised casing
EP0663100B1 (en) Fireproof sheath and method for making same
EP0660020B1 (en) Manufacturing process for a fire protection on the base of silicone and fire protection
FR2505057A1 (en) Non-metallic fibre=optic cable - has fibre cable forming core helically surrounded by optical fibres inside outer sheath
BE1026867B1 (en) Multilayer cable protection material for high temperatures
FR3017628A1 (en) TEXTILE YARN, IN PARTICULAR FOR MAKING A SEAT COATING, FOR EXAMPLE BY WEAVING OR KNITTING, PARTICULARLY FOR A RAILWAY VEHICLE
FR2473501A1 (en) Heat insulation rope - has core of ceramic fibres and sheath of glass fibres
FR2472253A1 (en) PROCESS FOR MANUFACTURING SOFT ELECTRICAL CABLE WITH ETAMED MULTIBRINK HAMMER AND INSULATION APPLIED AT HIGH TEMPERATURE
CN110164611B (en) High-temperature-resistant ceramic flexible fireproof cable and production process thereof
FR2570510A1 (en) METHOD FOR MANUFACTURING AN OPTICAL FIBER CABLE, AND CABLE OBTAINED BY ITS IMPLEMENTATION
CA3075939A1 (en) Method and device for cutting a mat or a panel of mineral wool or a board or a panel of porous construction material
CN209015737U (en) A kind of flexibility tension drum cable structure
EP1339649B1 (en) Mineral wool element with enhanced reaction to fire, air duct comprising same
FR2803666A1 (en) Intermediate pick off optical fibre cable structure, having outer sleeve and inner area holding main optical fibres and second outer grooved tube area holding eight further optical fibres
BE883276A (en) FLAME RESISTANT INSULATED ELECTRIC WIRE AND CABLE STRUCTURE
CN202881529U (en) Fire-resistant, heat-insulating and thermal-preserving material aluminum silicate rope core

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA ME RS

17P Request for examination filed

Effective date: 20110201

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: E04B 1/94 20060101AFI20110523BHEP

Ipc: D04H 1/00 20060101ALI20110523BHEP

Ipc: D04H 5/08 20060101ALI20110523BHEP

RTI1 Title (correction)

Free format text: FIRE-RESISTANT STRIP AND METHOD OF MANUFACTURING A FIRE-RESITANT STRIP

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 559180

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602010001599

Country of ref document: DE

Effective date: 20120726

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20120523

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Effective date: 20120523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120823

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120923

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 559180

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120824

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120924

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120903

26N No opposition filed

Effective date: 20130226

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602010001599

Country of ref document: DE

Effective date: 20130226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120823

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130331

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20100318

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120523

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130318

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20170123

Year of fee payment: 8

Ref country code: DE

Payment date: 20170316

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170323

Year of fee payment: 8

Ref country code: BE

Payment date: 20170327

Year of fee payment: 8

Ref country code: CZ

Payment date: 20170120

Year of fee payment: 8

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602010001599

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180318

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180318

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180331