Nonwoven fabric and method of bonding same using microwave energy and a polar solvent
US4401708A · kind A · utility
10Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1981 |
| Grant date | Aug 30, 1983 |
| Priority date | — |
| Expiry date | Dec 7, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/69
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of producing a nonwoven fabric from a web of fibers, said fibers being substantially nonreactive to microwave energy, comprising applying a microwave reactive material to fibers in said web, subjecting the web to microwave energy at a temperature and for a time to heat said microwave reactive material sufficiently to cause bonding at at least some of the fiber intersections in said web thereby producing a nonwoven web. The resulting nonwoven fabric has a number of uses and is especially suitable as primary carpet backing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.