Elastic fabric comprising a polyurethane elastic fiber made from a polyether based polyol
US9567694B2 · kind B2 · utility
1Cited by
3References
9Claims
0Family size
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Key dates
| Filing date | May 24, 2012 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Jun 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249921
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
To provide elastic fabric that has comfortable wear and fit even in thin and light fabric by using a high-powered polyurethane elastic fiber that has at least 1.5 times the active force and recovery per unit fineness at the time of 100 to 200% elongation compared to conventional polyurethane elastic fiber. Resolution means an elastic fabric comprising a polyurethane elastic fiber made of a polyol, with a molecular weight between 450 and 1600 with a ratio of weight average molecular weight to number average molecular weight of at least 1.8, an organic diisocyanate compound, and a diamine compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.