Water-dispersible cationic vinylized epoxy resins
US4636541A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Mar 28, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/1494
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel water-compatible compositions are those of at least one vinyl ester resin whose backbone is linear or substantially linear and consists essentially of at least one terminal olefinically unsaturated group and at least one terminal pyridinium group covalently bonded through the pyridinium nitrogen atom. These novel compositions are useful adhesive and coating compositions which find particular utility in cathodic electrodeposition. The compositions are prepared, for example, by reacting a linear or substantially linear epoxy resin with an unsaturated monocarboxylic acid and then with a pyridine compound in the presence of sufficient amount of a Bronsted acid and water to stabilize the pyridinium salt thus formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.