N-vinyl lactam interpolymers useful as thickening agents
US3970606A · kind A · utility
3Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1973 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Aug 31, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/923
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An interpolymer useful in the thickening of aqueous acids comprising (A) about 20 to about 99.0 mole % acrylamide or N-vinyllactam, (B) about 0.5 to about 10 mole % long-chain containing vinyl monomer derivatives having the formula: ##EQU1## wherein Y represents hydrogen, halogen, lower alkyl or phenyl PA1 X represents oxygen, sulfur, carboxy or carbonamido; and PA1 R represents a hydrocarbon group containing from about 6 to about 36 carbon atoms including normal chain alkyl, branched chain alkyl, cycloalkyl and alkylaryl and (C) about 0.5 to 79.5 mole % of a cationic moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.