Polyester polymers and aqueous dispersions thereof
US5021544A · kind A · utility
16Cited by
4References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1989 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Nov 6, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/921
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water dispersible polyester polymer is described having one or more polyester chains and one or more non-ionic polyoxyalkylene chains in which at least 40% of the repeating oxyalkylene units are oxyethylene units. The polyester polymer has a structure in which one or more of the polyoxyalkylene chains are pendent to at least one of the polyester chains. The poloxyalkylene chains provide the polyester with non-ionic stabilization enabling the polyester to form aqueous dispersions which possess good colloid stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.