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1. WO1998026912 - CARBON FIBER PREPREG AND METHOD OF PRODUCTION THEREOF

Publication Number WO/1998/026912
Publication Date 25.06.1998
International Application No. PCT/JP1997/004642
International Filing Date 16.12.1997
IPC
B29B 11/16 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
11Making preforms
14characterised by structure or composition
16comprising fillers or reinforcements
B29B 15/10 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
15Pretreatment of the material to be shaped, not covered by groups B29B7/-B29B13/117
08of reinforcements or fillers
10Coating or impregnating
C08J 5/24 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
24Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
C08L 63/00 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
63Compositions of epoxy resins; Compositions of derivatives of epoxy resins
CPC
B29B 15/105
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
15Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
08of reinforcements or fillers
10Coating or impregnating ; independently of the moulding or shaping step
105of reinforcement of definite length with a matrix in solid form, e.g. powder, fibre or sheet form
B29K 2307/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2307Use of elements other than metals as reinforcement
C08J 2363/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2363Characterised by the use of epoxy resins; Derivatives of epoxy resins
C08J 2477/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2477Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain
C08J 2481/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2481Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
06Polysulfones; Polyethersulfones
C08J 5/24
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
24Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
Applicants
  • TORAY INDUSTRIES, INC. [JP]/[JP] (AllExceptUS)
  • NAGATA, Hideo [JP]/[JP] (UsOnly)
  • ODAGIRI, Nobuyuki [JP]/[JP] (UsOnly)
  • TERASHITA, Takeshi [JP]/[JP] (UsOnly)
  • KISHI, Hajime [JP]/[JP] (UsOnly)
  • YAMANE, Shoji [JP]/[JP] (UsOnly)
Inventors
  • NAGATA, Hideo
  • ODAGIRI, Nobuyuki
  • TERASHITA, Takeshi
  • KISHI, Hajime
  • YAMANE, Shoji
Priority Data
8/33847718.12.1996JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) CARBON FIBER PREPREG AND METHOD OF PRODUCTION THEREOF
(FR) PRE-IMPREGNE DE FIBRES DE CARBONE
Abstract
(EN) A carbon fiber prepreg is produced by impregnating a carbon fiber bundle comprising a large number of continuous carbon filaments and having a degree of intermingle of at least 10 cm as a hook drop value with a base resin containing a thermosetting resin as a principal component. Not greater than 20 wt.%, on the basis of the weight of the total prepreg, of particles of a thermoplastic resin having a particle size of not greater than 150 $g(m)m are distributed at a higher concentration in the surface region than in the inside. This carbon fiber prepreg has a high tack which little changes with time. The prepreg makes it possible to mold a composite having excellent compression inter-layer shear strength (CILS) at high temperatures after having absorbed moisture while maintaining a good impact resistance and to obtain a composite having a by far higher compression strength (LCS) of a cross-laminated sheet than those of existing composites.
(FR) Ce pré-imprégné de fibres de carbone est produit par imprégnation d'un faisceau de fibres de carbone, comportant un grand nombre de fils continus de carbone et possédant un degré d'entrelacement égal à au moins 10 cm en tant que valeur décroissante de crochet, à l'aide d'une résine de base contenant une résine thermodurcissable comme constituant principal. Une quantité n'excédant pas 20 % en poids, d'après le poids total du pré-imprégné, de particules d'une résine thermoplastique d'une taille particulaire ne dépassant pas 150 $g(m)m, est répartie selon une concentration plus importante en surface qu'à l'intérieur. Ce pré-imprégné de fibres de carbone a un pouvoir d'adhérence élevé ne se modifiant que peu avec le temps. Il permet de mouler un composite pourvu d'un remarquable résistance au cisaillement interlaminaire en compression à des températures élevées après avoir absorbé l'humidité et ce, tout en conservant une résistance élevée aux chocs, ainsi que d'obtenir un composite d'une résistance en compression de la feuille à stratification croisée bien plus importante que la résistance présentée par les composites existants.
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