Zwitterionic monomer having amino-multicarboxylic acid functionality
US6262299A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Jul 6, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/1804
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A zwitterionic monomer having amino-multicarboxylic acid functionality having Structure (I) ##STR1## wherein R.sub.1 is selected from the group consisting of H, an alkyl group having 1 to 6 carbon atoms; R.sub.2 is (CH.sub.2).sub.n where n is 2 to 12; R.sub.3 and R.sub.4 are independently an alkyl group having 1 to 6 carbon atoms; R.sub.5 is (CH.sub.2).sub.m where m is 2 or 3; R.sub.6 and R.sub.7 are independently selected from ##STR2## wherein R.sub.20 is selected from the group consisting of H, CH.sub.3, and COOY; R.sub.21 is selected from H or CH.sub.3 ; X is oxygen or nitrogen; A is a halide; and Y is independently a cation. The zwitterionic monomer is the reaction product of an amino-multicarboxylic acid and an amine containing monomer. Polymers prepared with the zwitterionic monomer are especially useful in hair treatment compositions to provide increased stiffness to hair, in coating formulations to increase the impact resistance, wet adhesion, and flexibility of the coating, especially wood coatings, and in mortar compositions to improve mortar compatibility, especially with redispersible powders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.