Polyimide and/or polyamide-imide compositions in mixed solvents

Details Polyimide and/or polyamide-imide compositions in mixed solvents Polyimide and/or polyamide-imide compositions in mixed solvents

1983-12-19

1985-01-22

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524359, 524600, C08L 7908

Patent

active

044953216

ABSTRACT:
Improved polyimide and/or polyamide-imide coating compositions are provided for use as magnet wire coatings which comprise a polyimide and/or polyamide-imide polymer and a co-solvent mixture of N-methyl pyrrolidone and acetophenone the solids content of the solution being between about 5 percent and 40 percent by weight based on the total weight of solution.

REFERENCES:
patent: 3364166 (1968-01-01), Barito
patent: 3497468 (1970-02-01), Ulmer
patent: 3501443 (1970-03-01), Di Leone
patent: 3607814 (1971-09-01), Di Leone
patent: 3655606 (1972-04-01), Lucas
patent: 3817927 (1974-06-01), Kovacs et al.
patent: 3856752 (1974-12-01), Bateman et al.
patent: 3937673 (1976-02-01), Koerner et al.
patent: 4374221 (1983-02-01), McGregor et al.

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