Temporary wet strength resin
US4605702A · kind A · utility
163Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1984 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Jun 27, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A cationic, water-soluble acrylamide polymer containing an acrylamide, a cationic comonomer and, optionally, a second comonomer and having sufficient glyoxal-reactive amide substituents and --CH.sub.O HCHO substituents to be thermosetting, the polymer, before glyoxylation, having a molecular weight ranging from about 500 to about 6000, a process for imparting temporary wet strength to paper and the paper per se, are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.