Fibers and filters containing said fibers
US5069970A · kind A · utility
287Cited by
11References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1989 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Dec 18, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2978
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a fiber comprising a major amount of a continuous phase comprising one or more melt processible polyesters of fiber forming molecular weight, and a minor amount of one or more polyolefins non-uniformly dispersed in said continuous phase such that the concentration of polyolefins at or near the surface of said fiber is greater than the concentration of polyesters at or near the surface of said fiber, and a process for preparing said fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.