Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1983-12-30
1985-06-25
Ivy, C. Warren
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524173, 524233, 524234, 524251, 524317, 524364, 524394, 524600, 524462, C08L 7908
Patent
active
045255075
ABSTRACT:
An improved wire enamel consisting essentially of the following materials by weight wherein basis is wire enamel weight; at least 50% by wt. of a polar organic solvent; about 2-8% by wt. of a polyimide precursor which can be cured to yield a polyimide polymer; about 0.5 to about 25% by weight of the substituted aliphatic hydrocarbon solvent for the polyimide precursor having a surface tension and polarity greater than that of the halogenated aliphatic hydrocarbon described below or a substituted aromatic hydrocarbon having a dipole moment less than or equal to the dipole moment of the halogenated aliphatic hydrocarbon described below; about 5 to 40% by wt. of a halogenated aliphatic hydrocarbon; and 0 to about 1% by wt. of an organosilane which increases the adhesion of the polyimide to an underlying substrate.
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Chaker Mouhanad
Clark Roger J.
Hayes James S.
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