Water reducible epoxy resin curing agent
US5204385A · kind A · utility
10Cited by
11References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1990 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Nov 27, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/184
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A curing agent for a water borne epoxy resin composition wherein the curing agent is the reaction product of a chemical excess of a polyfunctional epoxide compound and a quaternary ammonium salt in which substantially all of the excess epoxide groups in the reaction product are subsequently consumed in a reaction with a polyamine. A process for preparing the curing agent and a hardenable film forming coating composition containing as essential components, the curing agent, at least one water dispersible epoxy resin and water is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.