BR112012014480A2 - pré-impregnado, método de produzir um pré-impregnado, e, método de produzir um material compósito reforçado com fibra moldado - Google Patents

pré-impregnado, método de produzir um pré-impregnado, e, método de produzir um material compósito reforçado com fibra moldado

Info

Publication number
BR112012014480A2
BR112012014480A2 BR112012014480A BR112012014480A BR112012014480A2 BR 112012014480 A2 BR112012014480 A2 BR 112012014480A2 BR 112012014480 A BR112012014480 A BR 112012014480A BR 112012014480 A BR112012014480 A BR 112012014480A BR 112012014480 A2 BR112012014480 A2 BR 112012014480A2
Authority
BR
Brazil
Prior art keywords
prepreg
producing
composite material
fiber reinforced
reinforced composite
Prior art date
Application number
BR112012014480A
Other languages
English (en)
Inventor
Hayes Barrie
Thomas Jones Daniel
Original Assignee
Gurit (Uk) Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41667042&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR112012014480(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gurit (Uk) Ltd filed Critical Gurit (Uk) Ltd
Publication of BR112012014480A2 publication Critical patent/BR112012014480A2/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/245—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using natural fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
    • C08F290/14—Polymers provided for in subclass C08G
    • C08F290/144—Polymers containing more than one epoxy group per molecule
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
    • C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
    • C08F299/026—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from the reaction products of polyepoxides and unsaturated monocarboxylic acids, their anhydrides, halogenides or esters with low molecular weight
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
    • C08J5/243—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using carbon fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
    • C08J5/244—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using glass fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/246—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using polymer based synthetic fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/249—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs characterised by the additives used in the prepolymer mixture
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • C08J2363/10—Epoxy resins modified by unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/06—Unsaturated polyesters
    • C08J2367/07—Unsaturated polyesters having terminal carbon-to-carbon unsaturated bonds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina

Abstract

''pré-impregnado, método para produzir um pré-impregnado, e, método de produzir um material compósito reforçado com fibra moldado''. um pré-impregnado que compreende um material fibroso que contata uma resina polimerizável, pelo menos 50% em peso da resina polimerizável que compreende pelo menos um monômero polimerizável tendo pelo menos dois grupos funcionais insaturados de carbono-carbono, o monômero sendo polimerizável pela reação dos grupos funcionais insaturados para formar uma resina curada, em que a resina tem um calor de polimerização de menos do que 230 kj/kg para fornecer um aumento máximo na temperatura do pré-impregnado de 60°<198> durante a polimerização sob condições adiabáticas.
BR112012014480A 2009-12-14 2010-12-10 pré-impregnado, método de produzir um pré-impregnado, e, método de produzir um material compósito reforçado com fibra moldado BR112012014480A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0921802A GB2476115B8 (en) 2009-12-14 2009-12-14 Prepregs for manufacturing composite materials
PCT/EP2010/069425 WO2011073111A1 (en) 2009-12-14 2010-12-10 Prepregs for manufacturing composite materials

Publications (1)

Publication Number Publication Date
BR112012014480A2 true BR112012014480A2 (pt) 2017-03-14

Family

ID=41667042

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012014480A BR112012014480A2 (pt) 2009-12-14 2010-12-10 pré-impregnado, método de produzir um pré-impregnado, e, método de produzir um material compósito reforçado com fibra moldado

Country Status (6)

Country Link
US (1) US10538638B2 (pt)
EP (2) EP3190147A1 (pt)
CN (1) CN102712772B (pt)
BR (1) BR112012014480A2 (pt)
GB (1) GB2476115B8 (pt)
WO (1) WO2011073111A1 (pt)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476115B8 (en) 2009-12-14 2014-07-23 Gurit Uk Ltd Prepregs for manufacturing composite materials
WO2012148629A1 (en) 2011-03-31 2012-11-01 Ocv Intellectual Capital, Llc Microencapsulated curing agent
EP2788406A1 (en) 2011-12-08 2014-10-15 OCV Intellectual Capital, LLC Fiber reinforced resin molding compound and manufacturing method for fiber reinforced resin molded article therefrom
EP2794735B1 (en) 2011-12-22 2019-07-17 Hexcel Holding GmbH Improvements in or relating to fibre reinforced composites
CN104271631A (zh) 2012-05-18 2015-01-07 赫克塞尔合成有限公司 快速固化环氧树脂以及由其获得的预浸料
CN105008113A (zh) * 2013-02-26 2015-10-28 赫克赛尔控股有限责任公司 模塑部件的制造
JP6602523B2 (ja) * 2013-06-04 2019-11-06 ニチアス株式会社 断熱材および断熱材の製造方法
CN104761742B (zh) * 2014-01-06 2018-05-29 财团法人工业技术研究院 预浸片与其形成方法
DE102014207785A1 (de) * 2014-04-25 2015-10-29 Evonik Degussa Gmbh Verfahren zur Herstellung von lagerstabilen Epoxy-Prepregs und daraus hergestellte Composites auf Basis von radikalisch polymerisierbaren Säuren und Epoxiden
CN106459430B (zh) * 2014-05-18 2019-04-16 诺瓦康纳维搜索发展公司 用于制备基于环氧树脂组合物的诸如预浸料坯的成品和半成品的方法以及用于其的组合物
CN103952913A (zh) * 2014-05-21 2014-07-30 张家港市玮美纺织有限公司 一种防紫外线短纤维纱线
EP3026076B1 (en) 2014-11-27 2018-10-17 Polynt Composites France Vinyl ester powder pre-preg
GB2547468A (en) * 2016-02-19 2017-08-23 Gurit (Uk) Ltd Laminated moulded parts and manufacture thereof
CN110191904B (zh) * 2016-11-23 2023-06-30 巴斯夫欧洲公司 粘合剂组合物及其制备和使用方法
JP2021515079A (ja) * 2018-03-01 2021-06-17 サイテック インダストリーズ インコーポレイテッド 一貫した取扱特性を備える速硬化性樹脂調合物
KR20220003633A (ko) 2019-05-30 2022-01-10 폴린트 컴포지츠 유에스에이 인코포레이티드 적층 제조 조성물 및 방법
GB2609461A (en) * 2021-08-02 2023-02-08 Gurit Uk Ltd Polymerisable resin film
WO2023012185A1 (en) * 2021-08-02 2023-02-09 Gurit (Uk) Ltd Composite material layer and manufacture of sandwich panels
CN114057959A (zh) * 2021-11-30 2022-02-18 江苏德晴新材股份有限公司 一种风电用树脂及其对应的制备方法

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373075A (en) * 1961-12-18 1968-03-12 Robertson Co H H Diacrylate compositions, heat resistant polymers containing the same and method of making electrical laminates therefrom
DE2706638C2 (de) 1976-02-19 1986-04-03 Ciba-Geigy Ag, Basel Verfahren zur Herstellung von Prepregs
US4414367A (en) * 1981-09-30 1983-11-08 Union Carbide Corporation Curable molding compositions
CA1234664A (en) 1981-09-30 1988-04-05 Hugh C. Gardner Curable molding compositions
JPS59138444A (ja) 1983-01-27 1984-08-08 大日本印刷株式会社 金属張り繊維強化プラスチツクシ−トの製造方法
US4824919A (en) 1983-06-09 1989-04-25 The Dow Chemical Company Toughening of cured vinyl ester resins by inclusion in the uncured resins of oligomeric vinyl-reactive urethanes which phase out upon curing
GB8519778D0 (en) * 1985-08-07 1985-09-11 Ciba Geigy Ag Moulded composites
JPS6330537A (ja) * 1986-07-24 1988-02-09 Mitsubishi Rayon Co Ltd 繊維強化プラスチツク中間素材
US4954304A (en) * 1988-04-04 1990-09-04 Dainippon Ink And Chemical, Inc. Process for producing prepreg and laminated sheet
ATE171967T1 (de) † 1989-06-30 1998-10-15 Ligustica S A Epoxyprepreg
US5165989A (en) 1989-12-04 1992-11-24 Allied-Signal Inc. Extended shelf life prepreg article and method
DE4012946A1 (de) 1990-04-24 1991-10-31 Basf Ag Prepreg fuer hochleistungsverbundwerkstoffe
DE4222233A1 (de) * 1991-10-15 1993-04-22 Schering Ag Harnstoff- oder urethangruppen enthaltende imidazolverbindungen und deren verwendung als haertungsmittel fuer epoxidharze
JP3431782B2 (ja) * 1996-03-08 2003-07-28 昭和高分子株式会社 硬化性複合材料組成物及びその硬化方法
EP0922727B1 (en) * 1997-12-05 2006-07-26 Showa Denko Kabushiki Kaisha Photocurable prepreg sheet for waterproofing
US6207726B1 (en) * 1998-02-13 2001-03-27 Showa Denko Kabushiki Kaisha Photocurable prepreg composition and production method thereof
GB2364957B (en) 1998-11-06 2003-06-04 Structural Polymer Systems Ltd Moulding materials
CA2311661C (en) * 1999-06-14 2003-12-02 H.C.H. Polymeres Technologies, Inc. Thickenable vinyl ester resin compositions
DE10113940A1 (de) * 2001-03-22 2002-09-26 Bakelite Ag Verfahren zur Herstellung von mit Harz behandelten Verstärkungs- oder Kaschiermaterialien
WO2004067612A1 (ja) * 2003-01-30 2004-08-12 Toho Tenax Co., Ltd. 炭素繊維強化樹脂複合材料
US7691437B2 (en) * 2003-10-31 2010-04-06 3M Innovative Properties Company Method for preparing a pressure-sensitive adhesive
US20060015039A1 (en) 2004-07-19 2006-01-19 Cassidy Kenneth T Guidewire bearing markings simplifying catheter selection
US7364672B2 (en) 2004-12-06 2008-04-29 Arlon, Inc. Low loss prepregs, compositions useful for the preparation thereof and uses therefor
CN101128512B (zh) * 2004-12-24 2010-11-24 大日本油墨化学工业株式会社 支化聚醚树脂组合物的制造方法和酸侧基型支化聚醚树脂组合物的制造方法
JP4230466B2 (ja) * 2005-02-23 2009-02-25 株式会社有沢製作所 ビニルエステル樹脂組成物、ビニルエステル樹脂フィルム並びにプリプレグ及び成形体の製造方法
JP4322840B2 (ja) 2005-05-17 2009-09-02 パナソニック株式会社 ディスク装置の初期化方法
ATE495007T1 (de) 2007-06-20 2011-01-15 Rhodia Operations Polyamid-verbundartikel
GB2476115B8 (en) 2009-12-14 2014-07-23 Gurit Uk Ltd Prepregs for manufacturing composite materials

Also Published As

Publication number Publication date
GB2476115A (en) 2011-06-15
EP2513207B2 (en) 2020-06-17
CN102712772B (zh) 2016-01-13
GB2476115A8 (en) 2014-07-23
WO2011073111A1 (en) 2011-06-23
EP2513207A1 (en) 2012-10-24
EP3190147A1 (en) 2017-07-12
CN102712772A (zh) 2012-10-03
GB2476115B (en) 2012-02-29
GB2476115B8 (en) 2014-07-23
EP2513207B1 (en) 2017-05-03
US10538638B2 (en) 2020-01-21
US20120261060A1 (en) 2012-10-18
GB0921802D0 (en) 2010-01-27

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]