초록 ▼

Improved diimide and polyimide oligomers containing phenylacetylene terminal groups have been produced which melt at low temperatures and are curable into useful laminating resins, molding compounds and matrix resins. These oligomers are analogous to diimides and polyimides made from conventional di

Improved diimide and polyimide oligomers containing phenylacetylene terminal groups have been produced which melt at low temperatures and are curable into useful laminating resins, molding compounds and matrix resins. These oligomers are analogous to diimides and polyimides made from conventional dianhydrides, such as benzophenonetetracarboxylic dianhydride or pyromellitic dianhydride.

대표청구항 ▼

A phenylacetylene terminated imide oligomer having the structure [Figure] [Figure] where X is O, S, CH2, SO2, CO, or C(CF3)2, Ar is a tetravalent organic moiety having the structure [Figure] R is a divalent organic moiety having the structure [Figure] wherein X′is O, S, >C(CF3)2, CO, or CH2, Y is O,

A phenylacetylene terminated imide oligomer having the structure [Figure] [Figure] where X is O, S, CH2, SO2, CO, or C(CF3)2, Ar is a tetravalent organic moiety having the structure [Figure] R is a divalent organic moiety having the structure [Figure] wherein X′is O, S, >C(CF3)2, CO, or CH2, Y is O, S, >C(CF3)2, CO, or CH2, m is at least 1, Z is S, O, CH2, >C(CF3)2, >C(CH3)2, CO, SO2, C6H4, －C6H4－Y′－C6H4－, or －Y′－C6H4－Y′－C6H4－Y′wherein Y′is S, O, CH2, >C(CF3)2, >C(CH3)2, SO2 or mixtures thereof and where n ranges from 0 to 4, n′ranges from 0 to 4, m′ranges from 0 to 2.