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US 5,470,922 AGranted
Polyimide polymeric blends
AssigneeE. I. Du Pont de Nemours and Company
InventorsMureo Kaku, Robert R. Luise
Life of this patent
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Abstract
Polymeric blends of polyimide precursor resins and polyamides or polyesters, preferably in the form of liquid crystal polymers, provide polyimide products with excellent physical characteristics and injection molding capability.
Claims14
A polymeric blend comprising
- (a) about from 99 to 20% by weight of at least one polyester polymer which is melt processible at a temperature of less than about 400.degree. C. and, complementally,
- (b) about from 1 to 80% by weight of polyimide precursor resin prepared from at least one aromatic diamine and at least one aromatic dianhydride in which less than about 98% of the polymeric units are converted to polyimide.
Dependencies are inferred from the claim text.