Photopolymerizable resin compositions
Abstract
Abstract PHOTOPOLYMERIZABLE RESIN COMPOSITIONS COMPOSED ESSENTIALLY OF UNSATURATED POLYESTER, CROSSLINKING AGENT AND OPTICAL SENSITIZER, WHICH IS CHARACTERIZED IN THAT SAID UNSATURATED POLYESTER IS A CARBOXYL GROUP-CONTAINING UNSATURATED POLYESTER OBTAINED BY POLYCONDENSATION OF AN ACID COPONENT COMPRISING: (1)() AT LEAST 5 MOL PERCENT TO THE TOTAL ACID COMPONENT OF AROMATIC POLYCARBOXYLIC ACID CONTAINING AT LEAST THREE CARBOXYL GROUPS, OR FUNCTIONAL DERIVATIVE THEREOF, (B) AT LEAST 30 MOL PERCENT TO THE TOTAL ACID COMPONENT OF ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID OR FUNCTIONAL DERIVATIVE THEREOF, AND (C) ZERO TO 50 MOL PERCENT TO THE TOTAL ACID COMPONENT OF DICARBOXYLIC ACID CONTAINING NO ETHYLENIC UNSATURATION, OR FUNCTIONAL DE RIVATIVE THEREOF, AND AN ALCOHOLIC COMPONENT COMPOSED SUBSTANTIALLY OF (2) ALIPHATIC GLYCOL. THE PHOTOPOLYMERICABLE RESIN COMPOSITIONS OF THE PRESENT INVENTION EXHIBIT EXCELLENT PROPERTIES SUCH AS SOLVENT RESISTANCE, STRENGTH, HARDNESS AND DIMENSIONAL STABILTY.
Inventors
- 👤 Yasuo Taneda
- 👤 Kiyomi Naka
- 👤 Akihiro Horike
Bibliographic Details
Claims Analysis
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