Polyurethane elastomeric fiber and process for making the fiber
US6911502B2 · kind B2 · utility
8Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Feb 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention is comprised of a thermoplastic polyurethane elastomer fiber obtained by melt spinning a polyurethane having a rebound of 60% or greater and a isocyanate-terminated polyether or polyester additive. The elastic fibers have low shrinkage, high heat resistance, low tensile set, and high elongation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.