Heat-adhesive composite fibers and process for producing same
US4269888A · kind A · utility
69Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1979 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | Nov 16, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2931
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Heat-adhesive side-by-side type composite fibers consisting of a component composed mainly of a crystalline polypropylene and a component composed mainly of an olefin polymer, having few naturally developed crimps and few latent crimpability and superiority in undetachability of the composite components, are produced by using two composite components having a specified relationship of melt flow ratio and by stretching unstretched composite fibers at a specified temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.