Invention Grant
- Patent Title: Glass roving cloth and glass-fiber-reinforced resin sheet
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Application No.: US17600712Application Date: 2020-03-17
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Publication No.: US11702773B2Publication Date: 2023-07-18
- Inventor: Yosuke Nukui , Junya Sakata , Hideaki Monma
- Applicant: NITTO BOSEKI CO., LTD.
- Applicant Address: JP Fukushima
- Assignee: Nitto Boseki Co., Ltd.
- Current Assignee: Nitto Boseki Co., Ltd.
- Current Assignee Address: JP Fukushima
- Agency: Carrier, Shende and Associates, P.C.
- Agent Joseph P. Carrier; Fulchand P. Shende
- Priority: JP 19123341 2019.07.02
- International Application: PCT/JP2020/011827 2020.03.17
- International Announcement: WO2021/002066A 2021.01.07
- Date entered country: 2021-10-01
- Main IPC: D03D15/267
- IPC: D03D15/267 ; D03D15/50 ; D02G3/18 ; D02G3/22 ; D03D13/00 ; D03D25/00

Abstract:
The glass roving cloth includes glass rovings each composed of glass filaments, each having a filament diameter Dt of 9.5 to 30.0 μm, bundled in a number bundled Ft of 400 to 8000 as a warp yarn and glass rovings each composed of glass filaments, each having a filament diameter Dy of 9.5 to 30.0 μm, bundled in a number bundled Fy of 400 to 8000 as weft yarns, wherein the weaving density of the warp yarns and weft yarn is 2.0 to 14.0 yarns/25 mm, the average yarn width of the warp yarn and the weft yarn are each 500 to 8000 μm, the widening rate of the warp yarn and the weft yarn are each 3.0 to 30.0%, the glass occupancy in the warp yarn direction is 90.0 to 106.0%, and the glass occupancy in the weft yarn direction is 75.0 to 99.0%.
Public/Granted literature
- US11959203B2 Glass roving cloth and glass-fiber-reinforced resin sheet Public/Granted day:2024-04-16
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