Heat-resistant resin from aromatic cyanamide compound and aromat

Details Heat-resistant resin from aromatic cyanamide compound and aromat Heat-resistant resin from aromatic cyanamide compound and aromat

1983-08-23

1984-12-04

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Nitrogen-containing reactant

4284111, 528172, 528210, 528220, 528363, 528391, 528367, C08G 7308

Patent

active

044865830

ABSTRACT:
A polymer which has excellent heat resistance and mechanical properties which is useful as a molding material, contains the structural units having the following formulae [I] and [II]: ##STR1## wherein A and B each represents an at least divalent organic group having at least one aromatic ring such as a diphenyl ring; and m and n each represents a number of at least 1. The polymer is used in the form of a solution or varnish as an impregnating, laminating, bonding or film-forming coating or prepreg-forming varnish. A resin composition for forming the polymer contains an aromatic cyanamide compound and an aromatic amine which are reacted to form a prepolymer which, upon heating, is converted into a cured polymer having the structural units of formulae [I] and [II].

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