Spunbonded fabrics of nylon-6 filaments
US3991250A · kind A · utility
10Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Feb 10, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/681
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A spunbonded fabric of nylon 6, bonded by binders such as polyacrylates and polyurethanes, in which the filaments are substantially in the .gamma.-modification in the crystalline regions and the average molecular orientation, produced by attenuation, of the nylon 6 filaments is at most 80% of the theoretically possible orientation. It is an object of the invention to produce spunbonded fabrics of improved properties and to do so more economically, e.g. with higher outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.