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1. WO2020110528 - TWO-PACK CURABLE EPOXY RESIN COMPOSITION, CURED PRODUCT, FIBER-REINFORCED COMPOSITE MATERIAL AND MOLDED ARTICLE

Publication Number WO/2020/110528
Publication Date 04.06.2020
International Application No. PCT/JP2019/041661
International Filing Date 24.10.2019
IPC
C08G 59/42 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
59Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compounds; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
40characterised by the curing agents used
42Polycarboxylic acids; Anhydrides, halides, or low-molecular-weight esters thereof
CPC
C08G 59/42
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
59Polycondensates containing more than one epoxy group per molecule
18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; ; e.g. general methods of curing
40characterised by the curing agents used
42Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
Applicants
  • DIC株式会社 DIC CORPORATION [JP]/[JP]
Inventors
  • 杉本 菜々 SUGIMOTO Nana
  • 木村 真実 KIMURA Makoto
  • 小林 厚子 KOBAYASHI Atsuko
Agents
  • 小川 眞治 OGAWA Shinji
Priority Data
2018-22358329.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) TWO-PACK CURABLE EPOXY RESIN COMPOSITION, CURED PRODUCT, FIBER-REINFORCED COMPOSITE MATERIAL AND MOLDED ARTICLE
(FR) COMPOSITION DE RÉSINE ÉPOXY DURCISSABLE À DEUX COMPOSANTS, PRODUIT DURCI, MATÉRIAU COMPOSITE RENFORCÉ DE FIBRES ET ARTICLE MOULÉ
(JA) 2液硬化型エポキシ樹脂組成物、硬化物、繊維強化複合材料及び成形品
Abstract
(EN)
The present invention provides: a two-pack curable epoxy resin composition which contains a curing agent having excellent long-term storage stability and has low viscosity and good impregnation ability into fibers, and which is capable of forming a cured product that has excellent mechanical characteristics, heat resistance and surface smoothness; a cured product; a fiber-reinforced composite material; and a molded article. Specifically, the present invention uses a two-pack curable epoxy resin composition which contains (i) a base material that contains an epoxy resin (A) and (ii) a curing agent that contains an acid anhydride (B) and an organic phosphorus compound (C), and which is characterized in that: the mass ratio of the base material (i) to the curing agent (ii), namely (i)/(ii) is within the range of from 35/65 to 75/25; the amount of use of the organic phosphorus compound (C) is within the range of 0.5-5 parts by mass relative to 100 parts by mass of the total of the epoxy resin (A) and the acid anhydride (B).
(FR)
La présente invention concerne : une composition de résine époxy durcissable à deux composants qui contient un agent de durcissement présentant une excellente stabilité au stockage à long terme et présente une faible viscosité et une bonne capacité d’imprégnation dans les fibres, et qui est capable de former un produit durci qui présente d’excellentes caractéristiques mécaniques, résistance à la chaleur et de lissé de surface ; un produit durci ; un matériau composite renforcé de fibres ; et un article moulé. Plus particulièrement, la présente invention fait intervenir une composition de résine époxy durcissable à deux composants qui contient (i) un matériau de base qui contient une résine époxy (A) et (ii) un agent de durcissement qui contient un anhydride d’acide (B) et un composé de phosphore organique (C), et qui est caractérisé en ce que : le rapport en masse du matériau de base (i) à l’agent de durcissement (ii), à savoir (i)/(ii) se situe à l’intérieur de la plage de 35/65 à 75/25 ; la quantité d’utilisation du composé de phosphore organique (C) se situe à l’intérieur de la plage de 0,5 à 5 parties en masse par rapport à 100 parties en masse du total de la résine époxy (A) et de l’anhydride d’acide (B).
(JA)
優れた長期保存安定性を有する硬化剤を含有し、低粘度で繊維への良好な含浸性を有しており、かつ、優れた機械特性、耐熱性、及び表面平滑性を有する硬化物を形成可能な2液硬化型エポキシ樹脂組成物、硬化物、繊維強化複合材料、並びに成形品を提供する。具体的には、エポキシ樹脂(A)を含有する主剤(i)と、酸無水物(B)及び有機リン化合物(C)を含有する硬化剤(ii)とを含む2液硬化型エポキシ樹脂組成物であって、前記主剤(i)と前記硬化剤(ii)との質量割合[(i)/(ii)]が、35/65~75/25の範囲であり、前記有機リン化合物(C)の使用量が、前記エポキシ樹脂(A)及び前記酸無水物(B)の合計100質量部に対して、0.5~5質量部の範囲であることを特徴とする2液硬化型エポキシ樹脂組成物を用いる。
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