Epoxy resin composition
AssigneeMitsubishi Chemical Corporation
InventorsYukihiro Harada, Satoshi Okamoto, Kenta Narumori, Tomoo Sano, Akihiro Ito, Masayuki Sugiura, Tatsuhiro Kishikawa, Shinya Katou, Sanae Kita
Life of this patent
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Abstract
An epoxy resin composition, the epoxy resin composition including components (A1) to (C1) described below, wherein the content of the component (B1) is 8 to 20 parts by mass relative to 100 parts by mass of the component (A1), and the content of the component (C1) is 12 to 110 parts by mass relative to 100 parts by mass of the component (A1): component (A1): an epoxy resin; component (B1): a boron trihalide-amine complex; and component (C1): rubber particles.
Claims28
An epoxy resin composition, comprising:
- components (A1), (B1) and (C1), wherein a content of the component (B1) is 10.8 to 16.7 parts by mass relative to 100 parts by mass of the component (A1), and a content of the component (C1) is 12 to 110 parts by mass relative to 100 parts by mass of the component (A1),
- wherein component (A1) is an epoxy resin selected from the group consisting of an epoxy resin comprising an aromatic ring in the molecule, and an epoxy resin comprising an aliphatic ring in the molecule,
- component (B1) is a boron trihalide-amine complex, and
- component (C1) is a rubber particle selected from the group consisting of
- a crosslinked rubber particle, and
- a core-shell type rubber particle, wherein the core-shell type rubber particle comprises:
- a crosslinked rubber particle and a polymer graft-polymerized on the surface of the crosslinked rubber particle, wherein the graft polymerized polymer is different from a polymer that constitutes the crosslinked rubber particle,
- wherein the epoxy resin composition has a glass transition temperature (G′-Tg) when cured at 110° C. of at least 105° C.
An epoxy resin composition, comprising:
- components (A2), (B2) and (D2), wherein a content of the component (B2) is 10.8 to 16.7 parts by mass relative to 100 parts by mass of the component (A2), and a content of the component (D2) is 1 to 50 parts by mass relative to 100 parts by mass of the component (A2),
- wherein component (A2) is an epoxy resin, component (B2) is a boron trihalide-amine complex, component (D2) is a polymer which is compatible with an epoxy resin composition comprising the components (A2) and (B2),
- wherein the epoxy resin composition comprising component (D2) has a characteristic of forming a phase separation structure when cured, and
- wherein the epoxy resin composition has a glass transition temperature (G′-Tg) when cured at 110° C. of at least 105° C.
A tow prepreg obtained by impregnating a reinforcing fiber bundle with epoxy resin composition, comprising:
- components (A1), (B1) and (C1), wherein a content of the component (B1) is 10.8 to 16.7 parts by mass relative to 100 parts by mass of the component (A1), and a content of the component (C1) is 12 to 110 parts by mass of the component (A1),
- wherein component (A1) is an epoxy resin selected from the group consisting of an epoxy resin comprising an aromatic ring in the molecule and an epoxy resin comprising an aliphatic ring in the molecule,
- component (B1) is a boron trihalide-amine complex, and
- component (C1) is a rubber particle selected from the group consisting of
- a crosslinked rubber particle and
- a core-shell type rubber particle, wherein the core-shell type rubber particle comprises
- a cross-linked rubber particle and a polymer graft-polymerized on the surface of the crosslinked rubber particle, wherein the graft polymerized polymer is different from a polymer that constitutes the cross-linked rubber particle,
- wherein the epoxy resin composition has a glass transition temperature (G′-Tg) when cured at 110° C. of at least 105° C.
Dependencies are inferred from the claim text.