Process of making bicomponent acrylic fibers having reversible crimp
US5232647A · kind A · utility
4Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1992 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Mar 30, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F8/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An acrylic fiber tow which includes 1) monocomponent filaments of each of two acrylonitrile polymers differing in hydrophilic properties, 2) bicomponent filaments of both of said polymers having one interface between polymers components and 3) bicomponent filaments of both of said polymers having more than one interface between polymer components. This fiber, however, in spite of its composition of numerous filaments of differing structure provides a tow bundle having a desirable level of reversible crimp measured in a manner specific to the type of crimp designated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.