WO1991010547A1 - Procede pour former des articles en plastique moule renforce par des fibres et preformes pour ce faire utilisant un liant photodurcissable - Google Patents

Procede pour former des articles en plastique moule renforce par des fibres et preformes pour ce faire utilisant un liant photodurcissable Download PDF

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Publication number
WO1991010547A1
WO1991010547A1 PCT/US1990/007528 US9007528W WO9110547A1 WO 1991010547 A1 WO1991010547 A1 WO 1991010547A1 US 9007528 W US9007528 W US 9007528W WO 9110547 A1 WO9110547 A1 WO 9110547A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibers
preform
photohardenable
mold
coated
Prior art date
Application number
PCT/US1990/007528
Other languages
English (en)
Inventor
Rudolph Henry Boeckeler
Kenneth Austin Seroogy
Original Assignee
Freeman Chemical Corporation
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 Freeman Chemical Corporation filed Critical Freeman Chemical Corporation
Priority to AU72203/91A priority Critical patent/AU660407B2/en
Priority to JP91503521A priority patent/JPH05505352A/ja
Priority to KR1019920701645A priority patent/KR920703286A/ko
Priority to CA002073682A priority patent/CA2073682C/fr
Publication of WO1991010547A1 publication Critical patent/WO1991010547A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/003—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised by the matrix material, e.g. material composition or physical properties
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps

Definitions

  • the invention relates to the art of making fiber reinforced molded articles. Specifically, the invention relates to an improved process for forming fiber preforms for use in molding such articles in which an ultraviolet light, poly erizable, photohardenable composition is employed as a preform binder.
  • preforms formed of glass or other fibers is a proven method of incorporating reinforcing fibers into complex shaped molds.
  • Such preforms have been used for a number of years in the art of forming molded articles utilizing matched die compression molds.
  • glass fibers are used as the reinforcing material, it has been common practice to chop glass fiber roving into shorter lengths.
  • the fibers were then deposited onto preform molds which often were in the shape of a specially designed screen having a size, shape and configuration conforming to that of the part to be molded. Even distri ⁇ bution of the chopped glass fibers on the preform mold has been achieved by use of a vacuum behind the screen.
  • the placement of holes and baffling the screen have also been utilized to control such distribution.
  • the binders used to bond the fibers together into a preform which can be handled have been of a heat curable type.
  • binder compositions are based on unsaturated polyester resins dispersed or dissolved in water. Commonly, such resins are diluted to a 5 to 7% solids concentration. This composition is sprayed on fibers and the binder composition is subsequently cured at elevated temperatures.
  • a forced air oven is required for curing in which temperatures in the 350° to 500 °F (175°C to 260°C) range are utilized.
  • the length of the curing cycle typically ranges between 20 seconds and several minutes, depending on the thickness of the preform and the air flow through the preform in the oven.
  • Various manual and automated methods have been used for this purpose. After curing, the preforms are moved from the screen, allowed to cool to ambient temperature, and then stored until they are used for molding.
  • the oven must have a relatively large exhaust stack to vent out the water vapor laden air. While it is possible to introduce heat exchangers to reduce some of the energy losses, this is not commonly done and, in any event, creates the need for additional equipment to deal with the condensed water vapor.
  • water vapor present in the exhaust air there are often volatile organic compounds also pre ⁇ sent which are vaporized or atomized from the glass and binders in the oven. Because the legally allowable limits for such emissions are constantly being reduced, the in ⁇ stallation of expensive scrubbing equipment or, alterna ⁇ tively, the development of new preform binders and/or glass fiber sizing technology, is required.
  • the present invention involves the use of ultraviolet light to cure a UV activated polymeric binder at or near* ambient temperatures.
  • the present invention thus eliminates the problems heretofore encountered with smoke generation and volatile organic compound emissions, reduces the difficulty of cleaning the equipment and, most importantly, greatly reduces the energy consumption of the process.
  • a further advantage of the present invention is the achievement of an enormous increase in the speed of preform production by greatly reducing the time required to cure the preforms.
  • An important object of the invention is to provide a very rapid and low energy consuming method for making fiber preforms which utilizes 100% solids or very high solid content ultraviolet curable thermoset binders.
  • a further object of the invention is to provide a low energy consuming method of rapidly bonding or attaching fiber appendages to existing preforms.
  • the present invention achieves the foregoing objects and advantages by providing a method of making fiber reinforced molded articles, which method may include the steps of first applying a layer of reinforcing fibers against a preform mold surface which has a configuration corresponding to that of the final molded article. The method then includes the step of coating the fibers with an ultraviolet light curable composition which contains a photohardenable material that is polymerizable under UV light and a polymerization photoinitiator. The fibers are coated to a degree sufficient to coat the individual fibers without filling the interstices among the fibers. 0 The thus coated fibers are then exposed to ultraviolet light to cure the composition. The resulting preform has the strength to be handled and stored for later use if desired, or transported in commerce.
  • the preform When used, the preform is placed in a mold with a de ⁇ formable plastic material.
  • the fiber preform and the plastic material are then molded together to form an article which consists of the plastic material containing the fibers therein as a fiber reinforcement.
  • the fiber reinforced plastic article is then removed from the mold and processed further in accordance with conventional practice.
  • any of the common UV curable resins and monomers may be used as the photohardenable material in practicing the invention.
  • suitable materials are unsaturated polyesters, ethacrylated and acrylated urethanes, methacrylated and acrylated epoxies, polyester acrylates, polyether acrylates, compositions containing allyl unsaturated and cationically polymerizable monomers and polymers in which UV radiation is used to unblock a cationic catalyst.
  • the photohardenable composition to the fibers on the mold is accomplished by spraying, roll coat application or transfer roll coat application, or other common coating transfer methods.
  • a number of layers of glass matt may be treated individually and subsequently stacked to form a multilayered preform. It is also possible to coat several layers simultaneously and then cure them together.
  • the amount of photohardenable material varies somewhat with the type of photohardenable material used as well with the type of fiber employed.
  • the UV curable binder generally comprises between 0.2 and 15% by weight of the total glass fibers.
  • the preferred binder content is in the 3 to 5% by weight range.
  • various other fibers such as carbon fibers, ceramic fibers, metal fibers, and plastic fibers such as polyester, polyethylene, aramide and other nylon fibers, may be used.
  • the speed and uniformity of UV curing is improved significantly by the use of fibers which are optically clear and, thus, capable of transmitting ultraviolet light through them.
  • the photohardenable binder composition can be further formulated with fillers, pigments, dyes and additives to improve rheology, adhesion to the fibers, cure rate and other process parameters.
  • the shape of the preform is constructed by wrapping glass fibers around a mandrel or mold of a desired shape to preconstructed matt ⁇ of chopped or continuous fibers, woven or non-woven fabrics, unidirectional or bidirectional stitched matts, or matts with sandwiched construction.
  • the reinforcing fibers may be continuous or chopped.
  • continuous or chopped glass fibers may be placed in a mold formed of a screen which is preferably transparent to UV radiation.
  • the preferred screen materials are glass or clear plastic, but other metallic or non-metallic materials may be substituted if desired.
  • the screen or mandrel is preselected to conform to the shape of the finished article. However, in some cases it may be desirable to preform several components or sections of the finished article individually, and to later combine the sections into a final composite article.
  • the composition containing the photohardenable material is preferably 100% reactive. In any event, it should be a high solid content composition which contains a photoinitiator.
  • the composition should be responsive to and harden when subjected to UV radiation in the range of from 200 nm (nanometers) to 500 nm. The preferred range is from 250 nm to 400 nm.
  • Any source of UV radiation commonly used for curing thin films may be employed.
  • Preferred sources are those with intensities of 200 watts or greater. Examples of such radiation sources are medium and high pressure
  • mercury vapor lamps and electrodeless mercury vapor lamps.
  • Examples of such units are those manufactured by Ashdee Corp., (Evansville, Indiana) and Fusion Systems, Inc. (Rockville, Maryland). Particularly advantageous for complex shapes are those sources which spread their energy
  • Preforms prepared in accordance with the invention can be used to make various reinforced plastic articles.
  • the plastic employed may either be thermoplastic or thermoset- ting.
  • Examples of the finished articles are items used in the transportation, construction, furniture, recreational, marine, agricultural, and electrical industries.
  • the fin- ished articles are made by placing the preform together with a thermosetting or thermoplastic material in an enclosed mold zone having a shape conforming to the finished product. The materials in the mold zone are then heated and compressed to form the molded shape. If the plastic deformable material is a thermoplastic, the material can be preheated to its deformation temperature and then forced within the mold cavity containing the preform to form the molded shape and thereafter allowed to cool and solidify. If a thermosetting plastic material is used, the plastic composition can be mixed, placed in the mold and heated to cure within the mold.
  • the mold may be heated by any available conventional means, such as microwave, hot oil, steam, radiant heaters, sonic heaters, or the like.
  • Thermosetting materials include but are not limited to polyester, epoxy, polyurethane, polyisocyanurate, polyurea and phenolic molding resins.
  • thermosetting mixture is one containing approximately 55% by weight styrene containing polyester resin, 44% by weight calcium carbonate and 0.5% by weight of a benzoyl peroxide catalyst mixture and 0.5% for an internal mold release composition.
  • Such mixtures can be molded at pressures of approximately 200 to 2,000 psi (14 to 140 Kg per square centimeters) in a mold cavity heated to approximately 300° F (150°C) and will cure within the mold in approximately 1-2 minutes.
  • the resulting glass composite was stiff and held its shape well. No odor of uncured resin could be detected.
  • a small piece of woven glass was bonded (stitched) 10 onto the composite using the same procedure.
  • the binder constituted 4.5% of the total weight of the treated glass.
  • Flat sheets of treated glass were exposed to ultraviolet radiation emitted by one 200 watt per inch mercury vapor lamp in an Ashdee UV cure unit.
  • the glass matt was passed under the UV lamp at a rate of 100 feet (30.5m) per minute (approximately 0.4 second exposure). Upon exiting from the UV unit, the matt was stiff and no odor of uncured resin could be detected.
  • One layer of glass matt treated with the composition of Example 2 was wrapped around a steel cylinder of 2 inch (5.1cm) diameter and secured with clear adhesive tape. The part was rotated under the 200 watt per inch lamp for 1-2 seconds. Upon removal of the tape and cylinder, the glass matt was rigid and held its cylindrical shape.
  • the UV curable binder system of Example 2 was applied to continuous strand glass by drawing down a film onto a glass plate, placing the glass fiber onto the film and rolling the glass with a hard rubber printer's roller to distribute the binder.
  • the binder contents varied from 3% to 5% by weight of the total glass.
  • the molded glass was then exposed by passing through the mold ultraviolet light emitted by a 118 watt per centimeter electrodeless lamp (Fusion Systems, Inc. "H bulb"). After 15-30 seconds of exposure, the glass was rigid, non-tacky and retained its molded shape after removal of the acrylic mold.
  • a 118 watt per centimeter electrodeless lamp Fusion Systems, Inc. "H bulb”
  • Example 4 The procedure of Example 4 was followed except the source of ultraviolet light is a 400 watt mercury vapor lamp with an elliptical reflector manufactured by Dr. Hoenle, West Germany. The glass was rigid, non-tacky and held its shape after removal from the mold.
  • EXAMPLE 6 The procedure of Example 4 was followed except the source of ultraviolet light is a 400 watt mercury vapor lamp with an elliptical reflector manufactured by Dr. Hoenle, West Germany. The glass was rigid, non-tacky and held its shape after removal from the mold.
  • Example 4 The procedure of Example 4 was followed except the source of ultraviolet light is high pressure mercury short arc lamp with an output of 100 milliwatts/cm2 and light was delivered by a flexible optical light guide.
  • the unit was manufactured by National Engineered Fiber Optics Systems, Inc.
  • the glass was rigid, non-tacky and held its shape after 15-30 seconds exposure.
  • Examples 4, 5 and 6 were repeated with a binder consisting of 70 parts epoxy acrylate oligomer (CHEMPOL® 19-6600, Freeman Chemical Corporation), 25 parts tripropylene glycol diacrylate (CL Industries, Georgetown, Illinois), 2 parts benzildimethyl ketal (Irgacure 651, Ciba Geigy Corporation), 3 parts N-methyl diethanolamine and 5 parts methyl ethyl ketone.
  • the binder is a clear, colorless liquid with viscosity of 450 cps at 25°C.
  • Examples 4, 5 and 6 were repeated with a polymerizable resin produced from combining acrylic acid, the diglycidyl ether of 1,4 butane diol and 3,3', 4,4' benzophenone tetracarboxylic dianhydride (BTDA) .
  • the resin so prepared is a product of Freeman Chemical Corporation and is designated CHEMPOL® 19-4837.
  • the glass composite was rigid, non-tacky and held its shape after removal from the acrylic mold.
  • a 3" x 5" triangular-shaped appendage was "stitched" onto the glass composite of Example 7 by applying a band of the binder system of Example 1 to the point at which the fin-shaped appendage makes contact with the bumper beam and exposing the binder to the optical wand delivered UV radiation from a 100 milliwatt per sq. cm. high pressure mercury vapor short arc lamp (Efos unit) . After 5-10 seconds exposure, the fin was tightly bonded to the bumper beam-shaped glass composite.
  • Example 7 The composition of Example 7 was applied to three layers of continuous strand glass matt by spraying
  • Example 10 The procedure of Example 10 was followed for treating and curing of preform binder. Three layer panels of glass with binder contents of 0%, 4.6%, 6.8% and 8.4% were thusly prepared. Each of the three layers of glass were placed in the RTM mold described in Example 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Reinforced Plastic Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

Cette invention concerne un procédé pour fabriquer des articles moulés renforcés par des fibres et des préformes destinées à être utilisées dans la fabrication d'articles moulés de ce type. Ce procédé comprend les étapes suivantes: l'application d'une couche de fibres de renforcement, préférablement des fibres de verre, sur la surface d'un moule de préforme dont la configuration correspond au moins partiellement à l'article final moulé; l'enduction des fibres avec une composition durcissant à la lumière ultraviolette qui comprend un matériau photodurcissable polymérisant sous l'effet de la lumière ultraviolette et un photoinitiateur de polymérisation; l'exposition des fibres enrobées, à la lumière ultraviolette pour durcir la composition; et le retrait de la préforme, résultant de l'opération, de la surface du moule de préforme. La préforme est ensuite utilisée en la plaçant, ainsi qu'un matériau plastique déformable, dans un moule, où un article contenant du plastique renforcé par les fibres est alors formé.
PCT/US1990/007528 1990-01-11 1990-12-19 Procede pour former des articles en plastique moule renforce par des fibres et preformes pour ce faire utilisant un liant photodurcissable WO1991010547A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU72203/91A AU660407B2 (en) 1990-01-11 1990-12-19 Process of forming fiber reinforced molded plastic articles and preforms therefor using a photosetting binder
JP91503521A JPH05505352A (ja) 1990-01-11 1990-12-19 光硬化バインダーを用いる繊維強化成形プラスチック製品及びそのプレフォームの製造法
KR1019920701645A KR920703286A (ko) 1990-01-11 1990-12-19 섬유 보강 성형 플라스틱 물품의 제조방법 및 이를위한 광경화 결합제를 사용하는 예비성형물
CA002073682A CA2073682C (fr) 1990-01-11 1990-12-19 Procede de formage d'articles en plastique renforce de fibre de verre et preformes ainsi obtenues a l'aide d'un liant

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US46338890A 1990-01-11 1990-01-11
US463,388 1990-01-11
US60999790A 1990-11-07 1990-11-07
US609,997 1990-11-07

Publications (1)

Publication Number Publication Date
WO1991010547A1 true WO1991010547A1 (fr) 1991-07-25

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PCT/US1990/007528 WO1991010547A1 (fr) 1990-01-11 1990-12-19 Procede pour former des articles en plastique moule renforce par des fibres et preformes pour ce faire utilisant un liant photodurcissable

Country Status (6)

Country Link
EP (1) EP0510097A1 (fr)
JP (1) JPH05505352A (fr)
KR (1) KR920703286A (fr)
AU (1) AU660407B2 (fr)
CA (1) CA2073682C (fr)
WO (1) WO1991010547A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0554236A1 (fr) * 1992-01-30 1993-08-04 The C.A. Lawton Company Formage de nattes en deux étapes et préformage
EP0558366A1 (fr) * 1992-02-24 1993-09-01 Cook Composites And Polymers Procédé pour le moulage d'une préforme multicouche rigide
GB2274120A (en) * 1993-01-07 1994-07-13 Vetrotex France Sa Process for preparing glass-resin prepregs
EP0614740A1 (fr) * 1990-11-05 1994-09-14 The C.A. Lawton Company Procédé et dispositif pour la fabrication de préformes
EP0620091A1 (fr) * 1990-07-12 1994-10-19 The C.A. Lawton Company Procédé et dispositif pour la manufacture des demi-produits pour renforcement structural, avec collage-temporaire ou fixation énergétique
WO1996025911A1 (fr) * 1995-02-24 1996-08-29 Bioxid Oy Preimpregne a fibres de polymere, son procede de preparation et d'utilisation
US5882462A (en) * 1996-02-02 1999-03-16 Dow-United Technologies Composite Products Method for fabricating a corrugated composite channel
WO1999015323A1 (fr) * 1997-09-19 1999-04-01 Dow-United Technologies Composite Products, Inc. Procede de fabrication d'un profile composite ondule
DE10161773A1 (de) * 2001-12-15 2003-06-26 Bayerische Motoren Werke Ag Verfahren zur Herstellung eines dreidimensional geformten Faserverbundkunststoffbauteils
DE102006048920B3 (de) * 2006-10-10 2008-05-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Elektrisch leitendes Leichtbauteil und Verfahren zu seiner Herstellung
DE102008028865A1 (de) * 2008-06-19 2009-12-24 Eads Deutschland Gmbh Profilvorformling zur Herstellung eines Faserverbund-Profilbauteils, sowie Herstellung und Verwendung von derartigen Profilvorformlingen
US7785525B2 (en) 2005-07-27 2010-08-31 Mitsubishi Heavy Industries, Ltd. RTM molding method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020088794A (ko) * 2001-05-21 2002-11-29 유림산업 주식회사 화강석 무늬를 갖는 강화 플라스틱 및 그 제조방법
CN1938162B (zh) * 2004-03-30 2011-06-01 旭化成电子材料株式会社 中空圆柱状印刷元件及其生产方法、中空圆柱状芯材料
JP2012001665A (ja) * 2010-06-18 2012-01-05 Asahi Organic Chemicals Industry Co Ltd シート材、配管部材及びシート材の製造方法

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GB2015915A (en) * 1978-02-13 1979-09-19 Scandinavian Glasfiber Ab Method of Manufacturing Objects of Cured Resin Reinforced with Glass Fibre
US4425287A (en) * 1979-08-04 1984-01-10 Basf Aktiengesellschaft Production of moldings from unsaturated polyester resins
US4478771A (en) * 1981-03-12 1984-10-23 Herbert Schreiber Method of manufacturing fibre-reinforced plastic articles, a prepreg for the manufacture of fibre-reinforced plastic articles and a fibre-reinforced plastic article
US4692291A (en) * 1980-04-14 1987-09-08 Union Carbide Corporation Molding method using fast curing fiber reinforced, low viscosity thermosetting resin
EP0265843A2 (fr) * 1986-10-29 1988-05-04 BASF Aktiengesellschaft Procédé de fabrication de corps creux

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US442587A (en) * 1890-12-09 Fender for street-cars

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Publication number Priority date Publication date Assignee Title
GB2015915A (en) * 1978-02-13 1979-09-19 Scandinavian Glasfiber Ab Method of Manufacturing Objects of Cured Resin Reinforced with Glass Fibre
US4425287A (en) * 1979-08-04 1984-01-10 Basf Aktiengesellschaft Production of moldings from unsaturated polyester resins
US4692291A (en) * 1980-04-14 1987-09-08 Union Carbide Corporation Molding method using fast curing fiber reinforced, low viscosity thermosetting resin
US4478771A (en) * 1981-03-12 1984-10-23 Herbert Schreiber Method of manufacturing fibre-reinforced plastic articles, a prepreg for the manufacture of fibre-reinforced plastic articles and a fibre-reinforced plastic article
EP0265843A2 (fr) * 1986-10-29 1988-05-04 BASF Aktiengesellschaft Procédé de fabrication de corps creux

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620091A1 (fr) * 1990-07-12 1994-10-19 The C.A. Lawton Company Procédé et dispositif pour la manufacture des demi-produits pour renforcement structural, avec collage-temporaire ou fixation énergétique
EP0614740A1 (fr) * 1990-11-05 1994-09-14 The C.A. Lawton Company Procédé et dispositif pour la fabrication de préformes
EP0554236A1 (fr) * 1992-01-30 1993-08-04 The C.A. Lawton Company Formage de nattes en deux étapes et préformage
EP0558366A1 (fr) * 1992-02-24 1993-09-01 Cook Composites And Polymers Procédé pour le moulage d'une préforme multicouche rigide
GB2274120B (en) * 1993-01-07 1996-09-11 Vetrotex France Sa Process for preparing glass-resin prepregs for manufacturing composite parts
GB2274120A (en) * 1993-01-07 1994-07-13 Vetrotex France Sa Process for preparing glass-resin prepregs
WO1996025911A1 (fr) * 1995-02-24 1996-08-29 Bioxid Oy Preimpregne a fibres de polymere, son procede de preparation et d'utilisation
US5846640A (en) * 1995-02-24 1998-12-08 Bioxid Oy Polymer-fibre prepreg, a method for the preparation thereof as well as the use of said prepreg
US5882462A (en) * 1996-02-02 1999-03-16 Dow-United Technologies Composite Products Method for fabricating a corrugated composite channel
WO1999015323A1 (fr) * 1997-09-19 1999-04-01 Dow-United Technologies Composite Products, Inc. Procede de fabrication d'un profile composite ondule
DE10161773A1 (de) * 2001-12-15 2003-06-26 Bayerische Motoren Werke Ag Verfahren zur Herstellung eines dreidimensional geformten Faserverbundkunststoffbauteils
US7785525B2 (en) 2005-07-27 2010-08-31 Mitsubishi Heavy Industries, Ltd. RTM molding method
DE102006048920B3 (de) * 2006-10-10 2008-05-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Elektrisch leitendes Leichtbauteil und Verfahren zu seiner Herstellung
DE102008028865A1 (de) * 2008-06-19 2009-12-24 Eads Deutschland Gmbh Profilvorformling zur Herstellung eines Faserverbund-Profilbauteils, sowie Herstellung und Verwendung von derartigen Profilvorformlingen
DE102008028865B4 (de) * 2008-06-19 2015-04-02 Airbus Defence and Space GmbH Verfahren zur Herstellung von Faserverbund-Profilbauteilen, sowie Verwendung derartig hergestellter Faserverbund-Profilbauteile

Also Published As

Publication number Publication date
CA2073682A1 (fr) 1991-07-12
AU660407B2 (en) 1995-06-29
CA2073682C (fr) 2002-02-19
KR920703286A (ko) 1992-12-17
JPH05505352A (ja) 1993-08-12
AU7220391A (en) 1991-08-05
EP0510097A1 (fr) 1992-10-28

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