| abstract |
1. POLYETHERIMIDE CONSISTING ESSENTIALLY OF CHEMICALLY COMBINED UNITS OF THE FORMULA -(1,3-DI(O=)-ISOINDOL-2, -YLENE)-O-R-O-(1,3-DI(O=)- ISOINDOL- 2-YLENE)-R1- WHERE R IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF (A) THE FOLLOWING DIVALENT ORGANIC RADICALS: AND (B) DIVALENT ORGANIC RADICALS OF THE GENERAL FORMULA, PHENYLENE)- -(2,6-DI(BR-)-1,4-PHENYLENE)-C(-CH3)2-(3,5-DI(BR-)-1,4- AND 3,5-DI(H3C-)-1,4-PHENYLENE)- -(2,6-DI(H3C-),3,5-DI(BR-)-1,4-PHENYLENE)-(2,6-DI(BR-), -(2,6-DI(H3C-)-1,4-PHENYLENE)-(3,5-(H3C-)-1,4-PHENYLENE)- (3-(H3C-)-1,4-PHENYLENE)- -(2-(H3C-)-1,4-PHENYLENE)-, -(2-(H3C-)-1,4-PHENYLENE)- AND X IS A WHOLE NUMBER EQUAL TO FROM 1 TO 5 INCLUSIVE. -O-, -CO-, -SO2-, -S-, AND -H2XCX- WHERE Q IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF -(1,4-PHENYLENE)-Q-(1,4-PHENYLENE)- WHERE X IS-CYH2Y-, Y IS A WHOLE NUMBER EQUAL TO FROM 1 TO 5 INCLUSIVE, AND R1 IS DIVALENT ORGANIC RADICAL SELECTED FROM THE CLASS CONSISTING OF (A) AROMATIC HYDROCARBON RADICALS HAVING FROM 6-20 CARBON ATOMS AND HALOGENATED DERIVATIVES THEREOF, (B) ALKYLENE RADICALS AND CYCLOALKYLENE RADICALS HAVING FROM 2-20 CARBON ATOMS, (C) C(2:8 ALKYLENE TERMINATED POLYDIORGANOSILOXANE, AND (D) DIVALENT RADICALS INCLUDED BY THE FORMULA, -(1,4-PHENYLENE)-(X)-(1,4-PHENYLENE)- |