Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Foundry binder of polyurethane, phenolic resin, polyisocyanate and epoxy resin

Foundry binder of polyurethane, phenolic resin, polyisocyanate and epoxy resin

US Patent 5981622 · Granted Nov 9, 1999

Estimated economic value: $3,162,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Bound multi-component sand additive1999
Biphenyl additive for improvement in urethane foundry binders1998
Biphenyl additive for improvement in urethane foundry binders1998
Biphenyl additive for improvement in urethane foundry binders1998
Foundry binder of phenolic resole resin, polyisocyanate and epoxy resin1998
Bound multi-component sand additive1997
Low free formaldehyde phenolic polyol formulation1993
Low free formaldehyde phenolic polyol formulation1993