Water-dispersible polyester resins and process for their preparation
US5218042A · kind A · utility
85Cited by
21References
34Claims
0Family size
Inventors
Key dates
| Filing date | Sep 25, 1991 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Sep 25, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D177/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a water-dissipatable or dispersible polyester containing sulfonate groups that has improved stability having a substantial number of capped carboxyl groups attached to the sulfomonomer moieties. This polyester can be prepared by capping the carboxyl end groups of the polyester with oxirane compounds or by polymerizing the reactants wherein one reactant is a diol that is a diester adduct of a glycol and a dicarboxylic acid sulfomonomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.