Liquid composition polymerizable to yield organic glasses with low water absorption and high thermal stability
AssigneeEnichem Synthesis S.p.A.
InventorsFiorenzo Renzi, Franco Rivetti, Ugo Romano
Life of this patent
Estimating the term…
Abstract
A liquid composition, polymerizable by free-radical polymerization to yield organic glasses which are endowed with characteristics of low water absorption and high thermal stability, is constituted by the product of transesterification of diallyl-carbonate with a cycloaliphatic diol or a mixture of cycloaliphatic diols, from among said diols 1,4-cyclohexane-di-methanol and 3(4),8(9)-bis-(hydroxymethyl)tricyclo[5.2.1.0.sup.2.6 ]decane being preferred.
Claims6
A liquid polymer organic glass composition having low water absorption and high thermal stability, comprising a mixture of monomeric and oligomeric bis(allyl carbonates) which are the transesterification reaction product of:
- (a) a diallyl-carbonate, and
- (b) 1,4-cyclohexane dimethanol, with a molar ratio of the diallyl-carbonate to the 1,4-cyclohexane dimethanol of from 3:1 to 6:1.
Organic glasses obtained by polymerization of the composition according to any of the preceding claims by a casting technique.
Dependencies are inferred from the claim text.