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US3998712A Monoketal of diketones as sensitizer for u.v. polymerizable systems 失效
二酮的单酮作为u.v. 可聚合系统

Monoketal of diketones as sensitizer for u.v. polymerizable systems
摘要:
Compositions polymerizable by ultraviolet irradiation which contain photopolymerizable monomers possessing at least one polymerizable carbon-carbon multiple bond and monoketals of the formula ##STR1## as photoinitiators. The compositions have a particularly long shelf life and show very little yellowing after curing by irradiation.
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