Poly (vinyl alcohol)—based formaldehyde-free curable aqueous composition
US8133952B2 · kind B2 · utility
19Cited by
25References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 2006 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Dec 13, 2027 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/28
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A formaldehyde-free curable aqueous composition containing polyvinyl alcohol, a multi-functional crosslinking agent, and, optionally, a catalyst. The composition may be used as a binder for non-woven products such as fiberglass insulation. The non-woven products are formed by contacting the formaldehyde-free curable aqueous composition with fibrous components and the mixture is cured to form a rigid thermoset polymer providing excellent strength and water resistance of the cured nonwoven product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.