Composite materials comprising a reinforcing material and a star polyamide as a thermoplastic matrix, the precursor compound article of said materials and the products obtained using same
US7323241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Mar 12, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24994
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a precursor article of a composite material comprising a polymer matrix and at least one reinforcing wire and/or fibres, said article comprising at least one reinforcing wire and/or fibres and at least one polymer matrix wire and/or fibres. The invention is characterised in that: said reinforcing wire and/or fibres are made from a reinforcing material and may comprise a thermoplastic polyamide part; said polymer matrix wire and/or fibres are made from thermoplastic polyamide; and the thermoplastic polyamide of said reinforcing wire and/or fibres and/or said polymer matrix wire and/or fibres comprise at least one polyamide with a star structure which contains: star macromolecular chains comprising one or more cores and at least three branches or three polyamide segments which are linked to the core; if necessary, linear polyamide macromolecular chains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.