Emulsion binders containing low residual formaldehyde and having improved tensile strength
US5540987A · kind A · utility
30Cited by
14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Sep 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/60
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The free formaldehyde content of the emulsion polymer, the amount of emitted formaldehyde and, even more particularly, of the finished nonwoven or textile may be substantially reduced by the use of a particular initiator system comprising a hydrophobic hydroperoxide and ascorbic acid. Moreover, this reduction in formaldehyde levels is accompanied by an unexpected improvement in the tensile properties of the emulsion binders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.