Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Polyimide resins from bis-imide, monomer having two methylene groups activated by adjacent carbonyls, and polyamine

Polyimide resins from bis-imide, monomer having two methylene groups activated by adjacent carbonyls, and polyamine

US Patent 4999419 · Granted Mar 12, 1991

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Ultraviolet radiation absorbing compositions1990
Polyimide resin from bis-imide and monomer having two methylene groups activated1989
Amine and ammonium nitrogen containing polyvinyl alcohol polymers having improve1987
Esters of carboxy amino phenyl isocyanurates and vinylidene carbonyl oxy alkanol1980
Process for curing unsaturated polyesters utilizing novel initiators1980