	US 12,104,023 B2
	Carbon fiber-containing polypropylene composition
Shun Takahashi, Chiba (JP); Masahiko Numakura, Chiba (JP); and Kenichi Seno, Chiba (JP)
Assigned to Sumitomo Chemical Company, Limited, Tokyo (JP)
Filed by SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo (JP)
Filed on Jul. 27, 2023, as Appl. No. 18/360,302.
Application 18/360,302 is a division of application No. 17/213,933, filed on Mar. 26, 2021, granted, now 11,760,850.
Claims priority of application No. 2020-059559 (JP), filed on Mar. 30, 2020; and application No. 2020-173997 (JP), filed on Oct. 15, 2020.
Prior Publication US 2023/0383071 A1, Nov. 30, 2023
Int. Cl. C08J 5/04 (2006.01); C08L 23/12 (2006.01); C08L 23/26 (2006.01)

CPC C08J 5/042 (2013.01) [C08L 23/12 (2013.01); C08L 23/26 (2013.01); C08J 2323/12 (2013.01); C08J 2323/26 (2013.01); C08L 2203/30 (2013.01); C08L 2205/02 (2013.01)]

6 Claims

1. A carbon fiber-containing polypropylene composition comprising polypropylene (component 1), carbon fiber (component 2), and carbodiimide-modified polypropylene (component 3), and satisfying all of the following requirements:

Requirement 1: the content of the component 1 is 30 to 98 wt %, the content of the component 2 is 1 to 50 wt %, and the content of the component 3 is 1 to 20 wt %, with respect to 100 wt % of the total weight of the component 1, the component 2, and the component 3; and

Requirement 2-1: the component 2 contains the C—O bond, the C═O bond, the O—C═O bond, the C—C bond, and the C—N bond, wherein the content of the C—O bond is 1 to 24% with respect to 100% of a total spectrum area of the C—O bond, the C═O bond, the O—C═O bond, the C—C bond, and the C—N bond, wherein the total spectrum area is analyzed by X-ray Photoelectron Spectroscopy.