Ethylenically unsaturated phosphinic acid and thiophosphinic acid
申请人:Hoechst Aktiengesellschaft
公开号:US04859795A1
公开(公告)日:1989-08-22
Compounds of the general formula ##STR1## wherein X and Y are the same or different and denote oxygen or sulfur, R.sub.1 is an ethylenically unsaturated aliphatic radical containing from 2 to 6 carbon atoms, and R.sub.2 is a saturated aliphatic radical containing from 1 to 6 carbon atoms or an aryl radical containing from 6 to 10 carbon atoms, are intermediate products used for the preparation of photocrosslinkable polymers with lateral (thio)phosphinyl(thio)urethane groups or (thio)phosphinyl(thio)urea groups, which polymers are useful in photosensitive mixtures and recording material.