Amine acid salt-containing polymers for cationic electrodeposition
US4148772A · kind A · utility
105Cited by
15References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1977 |
| Grant date | Apr 10, 1979 |
| Priority date | — |
| Expiry date | Dec 8, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel, chain-extended adducts formed from reacting high molecular weight polyepoxides and polyester polyols containing at least two alcoholic, primary hydroxyls per molecule are disclosed. The chain-extended polyepoxides are adducted with a secondary amine and made dispersible in water with acid. The water-dispersed resins can be applied to a wide variety of substrates by cationic electrodeposition. When compared to resins which are not chain extended, the resins of the invention have higher rupture voltages, improved film-forming properties and deposit as films with improved flexibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.