Thermoplastic elastomer for carbon fiber reinforced plastic bonding lamination
AssigneeMCPP Innovation LLC
InventorHiroyuki Mori
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Abstract
The present invention relates to a thermoplastic elastomer for carbon fiber reinforced plastic bonding lamination, which is contained in a layer to be laminated on a layer composed of a carbon-fiber reinforced plastic, wherein the thermoplastic elastomer for carbon fiber reinforced plastic bonding lamination contains a styrene-based thermoplastic elastomer and a polymer modified by an α,β-unsaturated carboxylic acid, the styrene-based thermoplastic elastomer contains components (a) to (d), and a concentration of an α,β-unsaturated carboxylic acid derived from the polymer modified by the α,β-unsaturated carboxylic acid is 0.01 to 10% by mass.
Claims21
A thermoplastic elastomer composition, comprising:
- polyolefin modified by an α,β-unsaturated carboxylic acid, wherein
- a concentration of an α,β-unsaturated carboxylic acid derived from the polyolefin modified by the α,β-unsaturated carboxylic acid in the thermoplastic elastomer composition is from 0.01 to 10% by mass;
- and
- a styrene based thermoplastic elastomer comprising:
- component (a):
- a hydrogenated block copolymer which is a hydrogenated product of an (A)-(B) block copolymer and/or an (A)-(B)-(A) block copolymer composed of a vinyl aromatic compound polymer block (A) and a conjugated diene polymer block (B), wherein at least 80% of double bonds of the conjugated diene moiety of the conjugated diene polymer block (B) is saturated through hydrogenation, and a weight average molecular weight thereof is 80,000 to 1,000,000;
- component (b):
- a softening agent selected from a mineral oil-based hydrocarbon having a weight average molecular weight of from 300 to 2,000, a synthetic resin-based hydrocarbon having a weight average molecular weight of from 300 to 2,000 or a mixture thereof;
- component (c):
- a hydrogenated block copolymer composed of an (A)-(C)-(A) triblock copolymer which is composed of a vinyl aromatic compound polymer block (A) and a conjugated diene polymer block (C), wherein the conjugated diene polymer block (C) is constituted of isoprene;
- and a part or all of carbon-carbon double bonds based on isoprene are hydrogenated;
- and
- component (d):
- an olefin-based crystalline resin;
- wherein based on 100 parts by mass of the sum total of the component (a) and the component (b), a content of the component (c) is 20 to 300 parts by mass.
A laminated molded article comprising a layer composed of a carbon fiber reinforced plastic and a thermoplastic elastomer layer composed of a thermoplastic elastomer laminated on the carbon fiber reinforced plastic,
- wherein the thermoplastic elastomer contains a styrene-based thermoplastic elastomer and a polyolefin modified by an α,β-unsaturated carboxylic acid,
- the styrene-based thermoplastic elastomer contains the following components (a) to (d), and
- a concentration of an α,β-unsaturated carboxylic acid derived from the polyolefin modified by the α,β-unsaturated carboxylic acid is 0.01 to 10% by mass:
- component (a):
- a hydrogenated block copolymer which is a hydrogenated product of an (A)-(B) block copolymer and/or an (A)-(B)-(A) block copolymer composed of a vinyl aromatic compound polymer block (A) and a conjugated diene polymer block (B), wherein at least 80% of double bonds of the conjugated diene moiety of the conjugated diene polymer block (B) is saturated through hydrogenation, and a weight average molecular weight thereof is 80,000 to 1,000,000;
- component (b):
- a softening agent selected from a mineral oil-based hydrocarbon having a weight average molecular weight of from 300 to 2,000, a synthetic resin-based hydrocarbon having a weight average molecular weight of from 300 to 2,000 or a mixture thereof;
- component (c):
- a hydrogenated block copolymer composed of an (A)-(C)-(A) triblock copolymer which is composed of a vinyl aromatic compound polymer block (A) and a conjugated diene polymer block (C), wherein the conjugated diene polymer block (C) is constituted of isoprene, and a part or all of carbon-carbon double bonds based on isoprene are hydrogenated;
- and
- component (d):
- an olefin-based crystalline resin;
- wherein based on 100 parts by mass of the sum total of the component (a) and the component (b), a content of the component (c) is 20 to 300 parts by mass.
Dependencies are inferred from the claim text.