US 12,139,596 B2
Thermoplastic resin composition and method for producing same, molded article and method for manufacturing same, and modifying agent and modification method
Keisuke Kato, Aichi (JP)
Assigned to TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi (JP)
Appl. No. 17/421,662
Filed by TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi (JP)
PCT Filed Nov. 20, 2019, PCT No. PCT/JP2019/045515
§ 371(c)(1), (2) Date Jul. 8, 2021,
PCT Pub. No. WO2020/152964, PCT Pub. Date Jul. 30, 2020.
Claims priority of application No. 2019-010642 (JP), filed on Jan. 24, 2019.
Prior Publication US 2022/0073719 A1, Mar. 10, 2022
Int. Cl. C08L 23/12 (2006.01); B29C 45/00 (2006.01); C08J 3/12 (2006.01); C08L 23/08 (2006.01); C08L 23/16 (2006.01); C08L 23/26 (2006.01); C08L 53/00 (2006.01); C08L 77/02 (2006.01); C08L 77/06 (2006.01)
CPC C08L 23/12 (2013.01) [B29C 45/0001 (2013.01); C08J 3/12 (2013.01); C08L 23/0815 (2013.01); C08L 23/16 (2013.01); C08L 23/26 (2013.01); C08L 53/00 (2013.01); C08L 77/02 (2013.01); C08L 2203/30 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2205/22 (2013.01); C08L 2207/04 (2013.01)] 7 Claims
 
1. A molded article obtained by molding a thermoplastic resin composition comprising:
(A) a first polyolefin resin with a number average molecular weight of less than 350,000;
(B) a second polyolefin resin with a number average molecular weight of 350,000 or more;
(C) a polyamide resin having a structure in which a carbon number of a linear chain part of a hydrocarbon group sandwiched between adjacent amide bonds in its main chain is 5 or less; and
(D) a modified elastomer having a reactive group with the polyamide resin (C);
wherein:
a total content ratio of the component (A) and the component (B) is 70% by mass or more, a content ratio of the component (A) is from 35% to 70% by mass, a content ratio of the component (B) is from 20% to 45% by mass, a content ratio of the component (C) is from 5% to 12% by mass, and a content ratio of the component (D) is from 10% to 25% by mass, when a total amount of the component (A), the component (B), the component (C), and the component (D) is 100% by mass %;
a content ratio of the component (A) is 50% by mass or more and 87% by mass or less, when a total amount of the component (A) and the component (B) is 100% by mass %; and
a tensile elongation is between 400% and 1000%.