Zirconium (III) salts as cure co-catalysts for nonwoven binders comprising acrylamidoglycolic acid
US4844970A · kind A · utility
13Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Jan 12, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Jan 12, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/69
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A crosslinkable anionic binder composition which comprises an emulsion copolymer containing acrylamidoglycolic acid (AGA) and a zirconium III salt of an alpha or beta hydroxycarboxylic acid, the pH of the composition being from about 1.5 to 4.5. Provided are nonwoven binder compositions which are stable for extended periods prior to application of the binder composition onto the nonwoven substrate and initiation of crosslinking by application of heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.