Photopolymerizable diisocyanate modified unsaturated polyester containing acrylic monomers
Abstract
Abstract A PHOTOPOLYMERIZABLE COMPOSITION COMPRISING: (I) A DIISOCYANATE MODIFIED UNSATURATED POLYESTER PREPARED BY REACTING A DIISOCYANATE WITH AN UNSATURATED POLYESTER AT A MOL RATIO OF 1:2 TO 1:1, SAID UNSATURATED POLYESTER HAVING TERMINAL GROUPS SELECTED FROM CARBOXYL AND HYDROXY GROUPS, HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 2,000 TO 50,000, AND CONTAINING ABOUT 1X10**-4 TO 2X10**-3 MOLE OF ETHYLENIC UNSATURATION PER GRAM OF THE UNSATURATED POLYESTER, (II) ABOUT 10 TO 80 WEIGHT PERCENT, BASED UPON THE TOTAL WEIGHT OF THE COMPOSITION, OF AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER, DIFFERENT FROM THE UNSATURATED POLYESTER, WHICH IS ADDITION-COPOLYMERIZABLE WITH THE DIISOCYANATE MODIFIED UNSATURATED POLYESTER (I); AND (III) ABOUT 0.001 TO 10 WEIGHT PERCENT, BASED UPON THE TOTAL WEIGHT OF THE COMPOSITION, OF APHOTOPOLYMERIZATION INITIATOR. THIS PHOTOPOLYMERIZABLE COMPOSITION IS ESPECIALLY EFFECTIVE FOR THE PRODUCTION OF A VARIETY OF LAMINATED ARTICLES AND FLEXOGRAPHIC PRINTING PLATES AMONG A VARIETY OF IMAGE-MAKING ARTICLES.
Inventors
- 👤 Tsunetoshi Kai
- 👤 Takeaki Hagihara
- 👤 Teruhisa Ishido
Bibliographic Details
Claims Analysis
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