Polymeric compositions and composites prepared from spiroorthoca

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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549 14, 549 15, 58 87, 58 96, 523116, 106 35, C07D31900, C07D32706, C08G 5900, A61K 608

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active

058081089

ABSTRACT:
Polymeric compositions are provided which are the reaction product of spiroorthocarbonates and epoxy resins and undergo reduced bulk polymerization shrinkage. The spiroorthocarbonates are of the general formula: ##STR1## wherein X=O or S;

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