GB1273706A - Continuous extrusion of endless sections - Google Patents

Continuous extrusion of endless sections

Info

Publication number
GB1273706A
GB1273706A GB55271/70A GB5527170A GB1273706A GB 1273706 A GB1273706 A GB 1273706A GB 55271/70 A GB55271/70 A GB 55271/70A GB 5527170 A GB5527170 A GB 5527170A GB 1273706 A GB1273706 A GB 1273706A
Authority
GB
United Kingdom
Prior art keywords
core
covering
tube
foam
extruded
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.)
Expired
Application number
GB55271/70A
Inventor
Ulrich Knipp
Karl Breer
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1273706A publication Critical patent/GB1273706A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/904—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,273,706. Foam filled extruded section. FARBENFABRIKEN BAYER A.G. 20 Nov., 1970 [27 Nov., 1969], No. 55271/70. Heading B5A. [Also in Division C3] A foamable plastics liquid reaction mixture 15 is introduced, from a cooling chamber 9 and via an axially adjustable tube 10 (which may comprise an internal former), to foam as a core within an extruded tubular thermoplastics covering 3 at a location, downstream of the tube extrusion die outlet 2, at which the covering has been cooled by a sizing die 4 (comprising a cooling jacket 5 and suction chamber 6) to a temperature not greater than 100‹ C., and preferably of 20‹ to 50‹ C. The tube 10 is provided with seals 12, 13, the latter to prevent reverse flow of the mixture. It is stated that the extruded tube into which the foam is introduced may be supported by internal compressed air pressure. The process produces a higher density outer zone 16 of the core, e.g. 1.2 gm./c.c., than of its interior, e.g. 0.3 or 0.4 gm./c.c. The covering may comprise polyethylene, polypropylene, polyvinyl or polyvinylidene chloride, polystyrene, polycarbonate, and polyamide. The core may be based on polyurethane, unsaturated polyesters, epoxide resins, and #-caprolactam, as well as their copolymers. In one example, the thermoplastics covering comprises a tube of polystyrene, acrylonitrile - butadiene - styrene polymer, or polyamide, and the reaction mixture comprises a polyurethane comprising specified proportions of two components; (A), polyether of ammonia and propylene oxide, polyether or trimethylolpropane and hexane @riol reacted with propylene oxide and ethylene oxide, 1,4- butane diol, trichloromonofluoromethane, permethylated diethylene triamine, polysiloxane polyalkylene glycolether; and (B), carbodiimide - modified diphenylmethane - 4,41 - diisocyanate, yielding a solid zone 16 of 1.2g./c.c. In another example, the covering comprises a low-pressure polyethylene box section, and the core comprises components; (A), unsaturated polyester, Na-salt of sulphonated ricinoleic acid, bis - (dimethylethylamino)- methylamine, dimethyl polysiloxane; and (B), methylethylketone; and (C) 4,4<SP>1</SP>-diphenylmethane diisocyanate, yielding a solid zone 16 of 1.1 gm./c.c. which falls to 0.37 at the core centre.
GB55271/70A 1969-11-27 1970-11-20 Continuous extrusion of endless sections Expired GB1273706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691959464 DE1959464A1 (en) 1969-11-27 1969-11-27 Method and device for the continuous extrusion of endless profiles with a jacket made of thermoplastic material and a foam core and profiles produced according to this

Publications (1)

Publication Number Publication Date
GB1273706A true GB1273706A (en) 1972-05-10

Family

ID=5752174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55271/70A Expired GB1273706A (en) 1969-11-27 1970-11-20 Continuous extrusion of endless sections

Country Status (5)

Country Link
AT (1) AT310434B (en)
AU (1) AU2106570A (en)
DE (1) DE1959464A1 (en)
FR (1) FR2072542A5 (en)
GB (1) GB1273706A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204823A (en) * 1984-02-27 1988-11-23 Wiik & Hoeglund Method and apparatus for extruding large dimensional thermoplastic articles
EP0739705A1 (en) * 1995-04-26 1996-10-30 Erwin Industries, Inc. Process for manufacturing foam-filled extruded products
WO2005097463A1 (en) * 2004-03-25 2005-10-20 Röhm Gmbh Method for producing plastic rods
CN102642288A (en) * 2011-02-17 2012-08-22 赢创德固赛有限公司 Method for manufacturing rods and their use as implants
BE1019765A3 (en) * 2011-01-13 2012-12-04 Luvac Besloten Vennoostchap Met Beperkte Aansprakelijkheid METHOD FOR MANUFACTURING INSULATION PANELS AND AN EXTRUSION HEAD USED IN THEM.
EP2953776B1 (en) 2013-02-08 2017-12-27 Logstor A/S Method for producing an insulated pipe in corrugated casing
US10100513B2 (en) 2012-11-05 2018-10-16 Basf Se Process for producing profiled elements
EP2695719B1 (en) * 2012-08-07 2020-10-14 Roverplastik S.P.A. Method for the production of a profiled element and related plant

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017225A (en) * 1973-09-19 1977-04-12 Societa Internazionale Per Lo Sfruttamento Di Brevetti S.A. Apparatus for the production of synthetic-resin bodies having core and skin of different density
SE389054B (en) * 1975-11-18 1976-10-25 Lundbergs Fab Ab N NOZZLE FOR SUPPLY OF TWO COMPONENTS IN THE MANUFACTURE OF A CELL PLACE BETWEEN A RUBBER AND AN SURROUNDING SHAPE
DE2700478C2 (en) * 1977-01-07 1986-07-10 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Process for the production of a heat and sound insulated pipe
US4093485A (en) * 1977-05-31 1978-06-06 Ornsteen Robert L Method for forming a hot melt adhesive cartridge
FR2708511B1 (en) * 1993-07-30 1995-09-15 Budendorff Ets Method and installation for the design of tubular profile with injected expandable synthetic material.
DE19717066C1 (en) * 1997-04-23 1998-02-26 Daimler Benz Ag Local injections of structural aluminium- or plastic foam into anticipated separation points
DE19743381A1 (en) 1997-09-30 1999-04-01 Guenter Pazen Frame profiles for the production of window frames or casement frames for windows or doors and method for the production of frame profiles
DE19961306C2 (en) * 1999-12-18 2002-10-31 Veka Ag extrusion device
DE102009019331A1 (en) 2009-04-30 2010-11-04 Bayer Materialscience Ag Continuous method for producing a hollow chamber profile
US9492957B2 (en) 2011-04-27 2016-11-15 Basf Se Extruded plastics profiles comprising continuously introduced insulation elements
CN103619560B (en) 2011-04-27 2017-02-08 巴斯夫欧洲公司 Extruded plastic profiled elements containing continuously inserted damping elements
EP2574440A1 (en) 2011-09-30 2013-04-03 profine GmbH Method for pour-and-set foaming hollow chamber profiles
AU2013340732A1 (en) 2012-11-05 2015-05-21 Basf Se Method for producing profiled elements

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204823A (en) * 1984-02-27 1988-11-23 Wiik & Hoeglund Method and apparatus for extruding large dimensional thermoplastic articles
GB2204823B (en) * 1984-02-27 1990-07-18 Wiik & Hoeglund Method and apparatus for extrusion production of large dimensional thermoplastic articles
EP0739705A1 (en) * 1995-04-26 1996-10-30 Erwin Industries, Inc. Process for manufacturing foam-filled extruded products
WO2005097463A1 (en) * 2004-03-25 2005-10-20 Röhm Gmbh Method for producing plastic rods
US7968027B2 (en) 2004-03-25 2011-06-28 Evonik Roehm Gmbh Method for producing plastic rods
BE1019765A3 (en) * 2011-01-13 2012-12-04 Luvac Besloten Vennoostchap Met Beperkte Aansprakelijkheid METHOD FOR MANUFACTURING INSULATION PANELS AND AN EXTRUSION HEAD USED IN THEM.
CN102642288A (en) * 2011-02-17 2012-08-22 赢创德固赛有限公司 Method for manufacturing rods and their use as implants
EP2695719B1 (en) * 2012-08-07 2020-10-14 Roverplastik S.P.A. Method for the production of a profiled element and related plant
US10100513B2 (en) 2012-11-05 2018-10-16 Basf Se Process for producing profiled elements
EP2953776B1 (en) 2013-02-08 2017-12-27 Logstor A/S Method for producing an insulated pipe in corrugated casing

Also Published As

Publication number Publication date
AU2106570A (en) 1972-04-20
FR2072542A5 (en) 1971-09-24
DE1959464A1 (en) 1971-06-03
AT310434B (en) 1973-09-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees