发明授权
US5336743A Cast resin for optical use 失效
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Cast resin for optical use
摘要:
A cast resin for optical use is obtained by polymerizing a diallylphthalate component represented by the formula: ##STR1## wherein --R.sub.1 stands for a hydrogen atom or a methyl group, --OR.sub.2 for a dihydric alcohol residue having 1-5 carbon atoms, and m for an integer of 0-20, with an alkyleneglycol bis-allylcarbonate component represented by the formula: ##STR2## wherein --R.sub.4 stands for a hydrogen atom or a methyl group, --OR.sub.3 for a dihydric alcohol residue having 1-10 carbon atoms, and n for an integer of 1-10. In addition to the above components, there may be added a vinyl compound.
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