Process for production of a composite product
US5851667A · kind A · utility
4Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1996 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Feb 7, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2361
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for production of a composite product which involves molding several materials of different natures, including an oriented-reinforcement material that is preimpregnated with resin, without the resin being injected separately after the other materials in the mold are assembled, PA1 in which the resin is a modified polyester-polyurethane that is formed by reacting: PA2 a first component that comprises (A) at least one polyisocyanate PA2 with a second component that comprises: PA3 (a) at least one polyol polyester, PA3 (b) at least one ethylenically unsaturated monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.