Heat-resistant nonwoven fabrics
US5143582A · kind A · utility
115Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1991 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | May 6, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/691
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for making a heat resistant nonwoven fabric is provided. A formaldehyde-free binder composition containing a carboxy group, or a carboxylic anhydride, or salts of a carboxy group; and a .beta.-hydroxyalkyl amide contacts a nonwoven fabric containing heat-resistant fibers, and heating the binder composition is effected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.