Fusible bicomponent spandex
US11274381B2 · kind B2 · utility
0Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2014 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | May 29, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2401/041
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Included are segmented polyurethane elastic fibers or spandex fibers, capable of bonding to polymer fiber such as nylon or polyamide fibers, in addition to bonding to itself, for apparel textile applications. More particularly the invention relates to bicomponent spandex fibers, with a heat resistant core and a heat sensitive sheath, spun from polymer solutions. The nylon fabrics containing such spandex fibers have enhanced stretch performance and improved surface appearance after heat treatment to activate the fusing and bonding between nylon fibers and spandex fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.