Method for manufacturing composite material
US9701069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2013 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Sep 19, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a method for manufacturing a composite material, which includes performing press molding of a fiber matrix structure including reinforcing fibers and a matrix resin mainly including a polyester-based resin having a crystallization temperature of 185° C. or lower. Furthermore, the polyester-based resin is preferably a polyester-based copolymer. In addition, it is preferred that the matrix resin includes a carbodiimide, and that the carbodiimide has a cyclic structure. Moreover, it is preferred that the press molding is cold pressing in which a die temperature is 170° C. or lower; that the reinforcing fibers are carbon fibers; and that the discontinuous fibers are randomly oriented in the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.