Polybenzazole fibers and their utilization
US6673445B2 · kind B2 · utility
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3References
15Claims
0Family size
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Key dates
| Filing date | Oct 21, 2002 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Oct 21, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2967
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Polybenzazole fibers wherein the mean square roughness of the fiber surface is 20 nm or less, or polybenzazole fibers wherein the X-ray meridian diffraction half-height width factor is 0.3°/GPa or less, and their utilization such as shock-resistant members and heat-resistant felt, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.