- 专利标题: System for producing chopped roving thermoplastic composite sheets
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申请号: US17533333申请日: 2021-11-23
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公开(公告)号: US12070933B2公开(公告)日: 2024-08-27
- 发明人: Mingfu Zhang , Jawed Asrar
- 申请人: JOHNS MANVILLE
- 申请人地址: US CO Denver
- 专利权人: Johns Manville
- 当前专利权人: Johns Manville
- 当前专利权人地址: US CO Denver
- 代理商 Robert D. Touslee
- 分案原申请号: US16460603 2019.07.02
- 主分类号: B32B5/28
- IPC分类号: B32B5/28 ; B29C70/12 ; B29C70/50 ; B32B27/12
摘要:
A chopped roving thermoplastic composite sheet includes a web or mesh of chopped rovings and a thermoplastic resin that fully saturates the web or mesh of chopped rovings. The web or mesh of chopped rovings is not mechanically bonded and does not include a binder that bonds or adheres the chopped rovings together other than thermoplastic resin. As such, the thermoplastic resin and the web or mesh of chopped rovings are able to flow and conform to a mold or cavity when the chopped roving thermoplastic composite sheet is pressed within the mold or cavity and when the chopped roving thermoplastic composite sheet is heated to above the melting temperature of the thermoplastic resin.
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