Method for providing a moulding composition and moulding composition
US10843385B2 · kind B2 · utility
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6Claims
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Assignee
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Key dates
| Filing date | Dec 22, 2016 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Sep 18, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J5/243
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Treating an uncured resin matrix composition to impart energy to the resin matrix composition enables a stable Tg to be achieved whereby the resin matrix composition may be stored and has a low tack enabling subsequent processing and handling. The invention provides a method of achieving a stable Tg without the resin matrix composition starting to cure and a method of determining the treatment regime by which a resin matrix composition with a stable Tg may be obtained. The resin matrix composition may be fresh or reused uncured resin matrix composition and may contain fibrous reinforcement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.