Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Polyamide-imide solutions and a process for obtaining them

Polyamide-imide solutions and a process for obtaining them

US Patent 4950700 · Granted Aug 21, 1990

Estimated economic value: $3,240,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

N,N'-bis(maleimide)/hindered diamine copolymerizate1993
Nonlinearly optically active polymers1993
Polyamide-imide based filaments, and a process for obtaining them1992
Polyamide-imide solutions and the process for obtaining them1992
Organic material active in nonlinear optics1991
Novel nonlinearly optically active polyurethanes1991
Thermally stable (imide/amide)/(urea/siloxane) block copolymers1990
Preparation of diorganopolysiloxylated diamines1990
Transparent amorphous polyamide having high Tg from hindered aromatic diamine an1990
Crystallized semiaromatic polyamides having high Tg and Tm less than 290 degree 1990
Novel n[meth)allyloxy(meth)allylphenyl]maleimides and thermosetting imido copoly1989
Novel bis(maleimide)/polysiloxanes1989