Self-crosslinking vinyl acetate-ethylene polymeric binders for nonwoven webs
US7485590B2 · kind B2 · utility
3Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Sep 29, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/60
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention is directed to an improvement in nonwoven products comprised of a nonwoven web of fibers bonded together with polymeric binder comprised of emulsion polymerized units of vinyl acetate, ethylene, and a crosslinking monomer. The polymer is stabilized with a surfactant having a critical micelle concentration of about 0.5 to 3% by weight. The surfactant is employed in the polymerization in an amount less than 1% by weight, based upon the total weight of polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.