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US 2022/0089850 A1Published application
Resin composition for molding materials, molded body, and method for producing resin composition for molding materials
AssigneesSeiko Pmc Corporation, Toyota Shatai Kabushiki Kaisha
InventorsHiroaki YOKOI, Moe HORIGUCHI, Aiko NAYA
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Abstract
Provided is a resin composition for molding materials, comprising a plant fiber (A), a thermoplastic resin (B), and a compound (C) having a reactivity with a carboxy group.
Claims9
A resin composition for molding materials, comprising:
- a plant fiber (A);
- a thermoplastic resin (B);
- and
- a compound (C) having a reactivity with a carboxy group,
- wherein the thermoplastic resin (B) is a polyolefin-based resin, and
- the compound (C) having a reactivity with a carboxy group is a compound containing at least one functional group selected from the group consisting of a carbodiimide group and an oxazoline group, and
- the plant fiber (A), the thermoplastic resin (B), and the compound (C) having a reactivity with a carboxy group are blended such that a mass ratio thereof is 5 to 55/35 to 94/0.2 to 10.
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A method for producing a resin composition for molding materials which contains a plant fiber (A), a thermoplastic resin (B), and a compound (C) having a reactivity with a carboxy group, the method comprising:
- a step of melt-kneading the plant fiber (A), the thermoplastic resin (B), and the compound (C) having a reactivity with a carboxy group,
- wherein the thermoplastic resin (B) is a polyolefin-based resin,
- the compound (C) having a reactivity with a carboxy group is a compound containing at least one functional group selected from the group consisting of a carbodiimide group and an oxazoline group, and
- a mass ratio of the plant fiber (A)/the thermoplastic resin (B)/the compound (C) having a reactivity with a carboxy group is 5 to 55/35 to 94/0.2 to 10.
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Dependencies are inferred from the claim text.