Tricyclo[6.4.0.0.sup.2,7 ]-dodecane-1,8,2,7-tetracarboxylic acid

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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528125, 528128, 528189, 528206, 528208, 528220, 528229, 528352, 528353, 549234, C08G 7310

Patent

active

043606571

ABSTRACT:
Novel polyimides and molding compositions are prepared from tricyclo[6.4.0.0.sup.2,7 ]dodecane-1,8,2,7-tetracarboxylic acid dianhydride. Also a novel dianhydride-,tricyclo[6.4.0.0.sup.2,7 ]dodecane-1,8,2,7-tetracarboxylic acid dianhydride is prepared by a novel photodimerization of 1-cyclohexene-1,2-dicarboxylic anhydride. The polyimides are useful as engineering plastics.

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patent: 3856752 (1974-12-01), Bateman
patent: 4066622 (1978-01-01), Feinstein et al.
patent: 4142036 (1979-02-01), Feinstein et al.
patent: 4271079 (1981-06-01), Maeda et al.
patent: 4271288 (1981-06-01), Woo

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