Aqueous, essentially voc-free adhesive epoxy primer
US5641818A · kind A · utility
13Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 1995 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | May 15, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2400/166
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aqueous primer compositions containing substantially no volatile organic solvents, suitable for promoting the bonding of a metal adherend to a second adherend, are prepared by dispersing one or more solid epoxy resins and a solid curing agent into water such that the particle sizes of the solids are less than 30 .mu.m. The primer compositions are environmentally superior to solvent based primers without loss of physical properties, are storage stable, and exhibit excellent solvent resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.