Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Catalytic hydrogenation of di (4-aminophenyl) methane

Catalytic hydrogenation of di (4-aminophenyl) methane

US Patent 4394523 · Granted Jul 19, 1983

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

In-line method for determining the residue content of an isocyanate and apparatu2001
Process for the production of 4,4'-diamino-dicyclohexylmethane with a low trans-1993
Liquid diphenylmethane diisocyanate compositions1984
Catalytic hydrogenation of di(4-aminophenyl)methane1984
Catalytic hydrogenation of di(4-aminophenyl)methane1983
Low temperature storage stable liquid diphenylmethane diisocyanates1982