Metal phthalocyanines as catalysts for curing phthalonitrile pre

Details Metal phthalocyanines as catalysts for curing phthalonitrile pre Metal phthalocyanines as catalysts for curing phthalonitrile pre

1990-05-31

1991-09-24

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528206, 528207, 528208, 528210, 528271, 528360, C08G 8300

Patent

active

050514938

ABSTRACT:
Bis-phthalonitrile resins are cured using ionic metal phthalocyanine acceators. The ionic metal phthalocyanines are nontoxic and accelerate the cure rate of the resins without adversely affecting cured polymer strength. Di-Na, di-Li, Mg and Cd phthalocyanines in particular provide excellent cure acceleration. Also, the metal phthalocyanine can be made soluble in the resin by appropriate substitution of the aromatic rings, thus providing for homogenous polymerization.

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