公开(公告)号：US20190135995A1

公开(公告)日：2019-05-09

申请号：US16095151

申请日：2017-04-19

Applicant: MITSUI CHEMICALS, INC.

Inventor： Yasushi MIZUTA ,  Takeharu ISAKI ,  Masako YOSHIDA ,  Yuichi ITOU

IPC: C08J5/06 ,  B29B15/10 ,  B29C70/30 ,  D06M15/227 ,  C08L23/20

Abstract: Disclosed are: a reinforcing fiber bundle with excellent mechanical property and handling property, which contains a propylene-based resin (A), a propylene-based resin (B) comprising at least a carboxylic acid salt bonded to the polymer chain, and a reinforcing fiber (C) wherein the propylene-based resin (A) comprises more than 70% by mass but not more than 100% by mass of a component (A-1) having a weight average molecular weight of 150,000 or more, the amount of the propylene-based resin (B) is 3 to 50 parts by mass per 100 parts by mass of the propylene-based resin (A), and the total content rate of the propylene-based resin (A) and the propylene-based resin (B) is 0.3 to 5% by mass in the whole reinforcing fiber bundle; and a molding material comprising the reinforcing fiber bundle and a matrix resin.