Vinyl alcohol copolymers containing cationic groups
US4311805A · kind A · utility
23Cited by
2References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1980 |
| Grant date | Jan 19, 1982 |
| Priority date | — |
| Expiry date | Jul 14, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water-soluble cationic copolymer and methods for producing the same is disclosed which comprises comonomer units respectively represented by the formulae: ##STR1## wherein R.sup.1 is H or lower alkyl; B is ##STR2## R.sup.2, R.sup.3 and R.sup.4 are each independently lower alkyl or lower alkyl which contain a substituent; X is an anion capable of forming a salt with the ammonium nitrogen; and A is a group which links the nitrogen atom in B to the amide nitrogen atom. These copolymers are used in preparing paper strength additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.