Historical Repository
Founding U.S. Patent
Granted December 29, 1970
CORE INNOVATION
The invention introduces a polyglycol-based epoxy resin blended with diglycidyl ether of bisphenol A and a polyamine or polyamide hardener. This combination penetrates oil films and forms strong bonds.
KEY CLAIMS
- Enables bonding of oil-contaminated surfaces without cleaning.
- Uses specific resin ratios to maintain flexibility and penetration.
- Works with various curing agents and optional fillers/diluents.
- Demonstrates superior adhesion compared to conventional epoxies.
ORIGINAL DOCUMENT
