Technical fabrics for airbags
US6153545A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1999 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Jun 28, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3065
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The woven fabric for an airbag, a filter, a sail, a parachute or a paraglider is woven from a multifilament yarn having a yarn linear density between 30 and 1000 dtex. The multifilament yarn is a mixture of coarse filaments having a linear density of 5.5 to 8 dtex and fine filaments having a linear density of 2.5 to 4 dtex. The coarse filaments are mixed with the fine filaments in a ratio of from 1:1 to 1:5. The yarn can be made by a melt-spinning method using a spinneret with coarse holes and fine holes for the coarse and fine filaments disposed in an alternating arrangement. The filament may be made of polyamide, polyester or polypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.