Copolymers containing carboxyl groups, their preparation, and their use as thickeners
US5109091A · kind A · utility
10Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1991 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Aug 15, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to copolymers containing carboxyl groups and having a thickener action and also containing, inter alia, units (a) and/or (b) and/or (c) derived from monoethylenically unsaturated monomers of the formula (I) ##STR1## and/or from polyunsaturated monomers of the formula (II) ##STR2## and/or from urethane group-containing monomers of the formula (III) ##STR3## where only one of the two radicals R.sup.1 and R.sup.2 in the formula (I) is ethylenically unsaturated, while both radicals R.sup.5 and R.sup.6 in the formula (II) are ethylenically unsaturated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.