Nitrogen-containing heterocyclic compound having acetal group and method
申请人:Agency of Industrial Science & Technology
公开号:US04287335A1
公开(公告)日:1981-09-01
A novel compound represented by the general formula: ##STR1## [wherein, A is one member selected from the group consisting of ##STR2## (where R.sub.2 and R.sub.3 are each an alkyl group and R.sub.4 is an alkylene group), Y is one member selected from the group consisting of ##STR3## (where R.sub.1 is one member selected from the class consisting of alkyl group, aryl group and aralkyl group)] is obtained by causing a compound of the general formula: ##STR4## (wherein, A and n have the same meaning as described above) to react with a compound of the general formula: Y--CH.sub.3 (wherein, Y has the same meaning as described above).
Polyvinyl alcohol-styrylpyridinium photosensitive resins and method for
申请人:Agency of Industrial Science and Technology
公开号:US04272620A1
公开(公告)日:1981-06-09
A hydrophilic resin comprising a polyvinyl alcohol polymeric backbone and containing styrylpyridinium groups is a photosensitive resin. The photosensitive resin is prepared by reacting a styrylpyridinium salt containing a formyl or acetal group with a polyvinyl alcohol compound.