초록 ▼

This invention relates to a novel class of polyetherimides. The subject polyetherimides display a unique combination of high temperature properties, toughness, and melt processability. They are suitable for molding, extrusion, and coating applications. They are also of interest as components of blen

This invention relates to a novel class of polyetherimides. The subject polyetherimides display a unique combination of high temperature properties, toughness, and melt processability. They are suitable for molding, extrusion, and coating applications. They are also of interest as components of blends, as filled materials, and in composites.

대표청구항 ▼

A polyetherimide of the formula: [Figure] where a represents a whole number in excess of 1, the group －O－A3,3′;3,4′;4,3′or the 4,4′position, Z is derived from a dihydroxy-terminated poly(phenylene oxides), a dihydroxy-terminated poly(aryl ether), or a dihydroxy-terminated poly(aryl ether ketone), wh

A polyetherimide of the formula: [Figure] where a represents a whole number in excess of 1, the group －O－A3,3′;3,4′;4,3′or the 4,4′position, Z is derived from a dihydroxy-terminated poly(phenylene oxides), a dihydroxy-terminated poly(aryl ether), or a dihydroxy-terminated poly(aryl ether ketone), wherein the molecular weight of Z is ≥1,500, and R is a divalent organic radical selected from the class consisting of (1) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (2) alkylene radicals and cycloalkylene radicals having from 2-20 carbon atoms, 2-8 carbon atoms containing alkylene terminated polydiorganosiloxane radicals, and (3) divalent radicals included by the formula [Figure] wherein Q is a member selected from the class consisting of [Figure] where x is a whole number from 1 to 5 inclusive.