Glass fiber-reinforced resin molded article
US12139591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Mar 28, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/004
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In the glass fiber-reinforced resin molded article, the glass fiber has a flat cross-sectional shape having a ratio of the major axis to the minor axis (major axis/minor axis) in the range of 5.0 to 10.0, the thermoplastic resin is polyaryletherketone, the number average fiber length L of the glass fiber having a length of 25 μm or more contained in the glass fiber-reinforced resin molded article is in the range of 50 to 300 μm, the proportion PS of the glass fiber having a length of 25 to 100 μm contained in the glass fiber-reinforced resin molded article is in the range of 20.0 to 60.0%, the proportion PL of the glass fiber having a length of 500 μm or more is in the range of 1.0 to 15.0%; and the L, PS, PL satisfy the following formula (1). 39.5≤L×PS2/(1000×PL)≤82.4 (1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.