Patent EP-1905413-A1 (EP)
Inventor: MOSZNER NORBERT
IPC: A61K6/884
Filed: 2006-09-27
Abstract: A composition comprises at least one polymerizable binder, and a polymerization initiator having at least one acylgermane. A composition comprises at least one polymerizable binder, and a polymerization initiator having at least one acylgermane of formula (I). R 01-18C alkyl, 2-8C alkenyl (both optionally substituted by halo), -OR 10, -OCO-R 10, -OCO-hal, -COO-R 10, -CH=CH-CO-OR 10, -N(R 11)-CO-R 10, -N(R 11)-CO-hal, -C(1-4C alkyl)=C(1-4C alkyl)-CO-OR 10, -CO-NR 11R 12, -CH=CH-phenyl, -C(1-4C alkyl)=C(1-4C alkyl)phenyl, 3-12C cycloalkyl, 2-8C alkenyl, phenyl-1-4C alkyl, phenyl, naphthyl, antryl, biphenyl, 5 or 6-membered O, S or N-containing heterocyclic ring, or a group of formula (ia); R 10H, 1-18C alkyl, 2-8C alkenyl, 2-8C alkenyl (interrupted by at least one oxygen atoms), di-, tri-, tetra- or polyethylene glycol radical, 3-12C cycloalkyl, tetrahydropyran-2-yl, phenyl-1-4C alkylene, phenyl-1-4C alkenylene, 1-6C alkyl (all optionally substituted by halo, cyclohexyl, cyclopentyl, tetrahydrofuranyl, furanyl or isopropyl-4-methyl-cyclohexyl), phenyl, naphthyl or biphenyl; R 11and R 12H, 1-18C alkyl, 2-8C alkenyl, 2-8C alkenyl (interrupted by at least one oxygen atoms), 3-12C cycloalkyl, phenyl-1-4C alkyl, phenyl, naphthyl or pyridyl; R 11+R 125 or 6-membered O, S or N-containing heterocyclic ring which is anullated with an aliphatic or aromatic ring; R 1and R 2H, R 3, or group of formula (ib); R 4and R 5H, halo, optionally branched 1-6C alkyl or -O-1-6C alkyl; R 6-R 8H, halo, 1-12C alkyl, -alkenyl, -alkyloxy- or -alkenoxy; R 9-OH, -C xF 2x +1, -[Si(CH 3) 2] y-CH 3; x and y : 1-20; R 20H, halo, 1-12C alkyl, -alkenyl, -alkyloxy or -alkenoxy; R 131-18C alkyl, 2-8C alkenyl (interrupted by at least one O atoms), 3-12C cycloalkyl, phenyl-1-4C alkyl, phenyl, naphthyl or biphenyl; R 14-R 16H, 1-8C alkyl, 2-8C alkenyl, 7-9C phenylalkyl, -O-1-8C alkyl, phenyl or -O-SiR 17R 18R 19; R 17-R 19H, 1-8C alkyl, 2-8C alkenyl, 7-9C phenylalkyl, -O-1-8C alkyl or phenyl; R 3optionally branched 1-18C alkyl or 2-18C alkenyl; optionally branched 2-8C alkyl, 2-8C alkylene (interrupted by -O-, -NH-, -NR 11-, or -S-); optionally branched 2-18C alkyl, 2-18C alkylene (interrupted by -CO-, -COO-, -OCO-, -OCOO-, -CO-N(R 11)-, -N(R 11)-CO-, -N(R 11)-CO-N(R 11)-, -N(R 11)-COO-, -COO-1-6C alkylene, -COS-1-18C alkylene, -SO 2-, -SO 2-O-, -SO 2-N(R 11)-, or -(CH 3) 2Si[OSi(CH 3) 2] q-), phenyl-1-4C alkylene, phenylene, naphthylene, biphenylene, 5-12C cycloalkylene or 5 or 6-membered O, S or N-containing heterocyclic ring; trimethylsilyl, hal-(CH 3) 2Si-[OSi(CH 3) 2] r-, (CH 3) 3Si-[OSi(CH 3) 2] r-, -COOH, -COO-R 10, -CO-NR 11R 12, -CO-vinyl, or -CO-phenyl; phenyl-1-4C alkyl, phenyl, naphthyl or biphenyl, 5-12C cycloalkyl or a 5 or 6-membered O, S or N-containing heterocyclic ring; or halo, OH, or aromatic 6-30C radical; q and r : 1-6; m : 1-3; and n and p : 0 or 1. Independent claims are included for the following: (1) a system for the preparation of moldings comprising the composition, in combination with an LED light source; and (2) preparation of a molding involving shaping the composition into a body with a desired shape and completely or partially curing the body. [Image].