Heterogeneous photo-initiators, photopolymerizable compositions and their use

摘要

PCT No. PCT/EP96/02988 Sec. 371 Date Jan. 15, 1998 Sec. 102(e) Date Jan. 15, 1998 PCT Filed Jul. 8, 1996 PCT Pub. No. WO97/04361 PCT Pub. Date Feb. 6, 1997Heterogeneous photoinitiator in microparticle form, which consists of a finely divided substrate material to which identical or different photoinitiators are covalently bonded. The photoinitiators are suitable for the radiation-induced polymerization of photopolymerizable or photocrosslinkable monomers for the production of moldings, protective coats and relief images.