Reinforcing fiber bundle and molding material
US10899896B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2017 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Apr 19, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2101/40
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.