Fibre composite prepregs coated with two different resins
US4486494A · kind A · utility
12Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1983 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | Nov 30, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2984
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Fibre composite prepregs comprising: PA1 (a) reinforcing fibres, or fabrics formed therefrom, coated with a copolymer, the copolymer consisting of maleic anhydride or a maleic acid derivative and a hydantoin vinyl ether of the formula I, with the monomers having a specific molar ratio, and PA1 (b) a curable resin matrix. The formula I and the meanings of the individual symbols are given in claim 1. The fibre composite systems produced from the fibre composite prepregs by moulding and crosslinking of the resin matrix have excellent interlaminar shear strength and impact bend strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.