Invention Grant
- Patent Title: Vinyl ester powder pre-preg
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Application No.: US16941812Application Date: 2020-07-29
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Publication No.: US11434338B2Publication Date: 2022-09-06
- Inventor: Thierry Foussard , Paul Darby , Serge Herman , Christine Dhersin
- Applicant: Polynt Composites France
- Applicant Address: FR Drocourt
- Assignee: Polynt Composites France
- Current Assignee: Polynt Composites France
- Current Assignee Address: FR Drocourt
- Agency: Neal, Gerber & Eisenberg LLP
- Priority: EP14290355 20141127
- Main IPC: C08J5/24
- IPC: C08J5/24 ; C08J5/04 ; B29B11/16 ; B29C43/18 ; B29K309/08 ; B29K31/00 ; B29K105/08

Abstract:
The invention provides a powder pre-preg comprising as sole resin a vinyl ester resin having a Tg in the range of −5 to +30° C. and a melt viscosity @100° C. in the range of 2 to 75 dPa·s, which can be used in making a composite at a temperature as low as 80° C.
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