Aqueous polyester dispersion suitable for use as a coating composition
US5510417A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Nov 4, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0008
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aqueous dispersion comprising (A) a polyester comprising an aromatic dicarboxylic acid, an addition product of bisphenol A with ethylene oxide and/or propylene oxide, and a dicarboxylic acid having a metal base of sulfonic acid and/or a polyol having a metal base of sulfonic acid, (B) a water-soluble organic compound having a boiling temperature of about 60.degree. C. to about 250.degree. C., (C) water and (D) a neutralizer; the amounts of the components A, B, C and D satisfying the following ratios of (1) to (3): PA1 (1) A/B/C being about 1% to about 70% by weight/about 0% to about 69% by weight/about 9% to about 99% by weight, PA1 (2) B/(B+C) being about 0 to about 0.7 (weight ratio), and PA1 (3) the equivalent ratio of D to A being about 0.1 to about 20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.