Process for making aqueous cationic coating from amine-epoxy adduct, polyamide, and semiblocked polyisocyanate, acid salt, and product
US4134865A · kind A · utility
40Cited by
6References
20Claims
0Family size
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Key dates
| Filing date | Jul 22, 1977 |
| Grant date | Jan 16, 1979 |
| Priority date | — |
| Expiry date | Jul 22, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/901
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a cationic electrophoretic coating composition comprising the steps of: PA1 (I) mixing or reacting PA2 (1) a reaction product of an epoxy-amine adduct (A) and a partially blocked polyisocyanate (C) and PA2 (2) a reaction product of a polyamide (B) and a partially blocked polyisocyanate (C) and PA1 (II) dissolving or dispersing the resulting mixture or reaction product in an aqueous medium by neutralization with an acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.