Meltspun multicomponent thermoplastic continuous filaments, products made therefrom, and methods therefor
US5783503A · kind A · utility
96Cited by
37References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Jul 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/626
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Multicomponent thermoplastic continuous filaments are provided, including hollow core multicomponent filaments. The filaments are at least partially splittable into smaller filaments in the absence of mechanical treatment or application of high pressure water jets. The surface energy of the components can be controlled to control separation of the multi-component filaments. Sub-denier and micro-denier filaments of low orientation can be produced from relatively high molecular weight polymers to produce nonwovens of surprising strength, barrier, and cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.