Patent ID: 7829257

Claim:
Alkaline developable, photosensitive composition comprising (A) at least one alkaline soluble binder resin, prepolymer or monomer component; (B) at least one compound of formula I or II wherein R 1 is C 2 -C 4 alkanoyl; Ar 1 is phenyl or naphthyl, each of which is substituted by halogen, C 1 -C 8 alkyl, NR 5 R 6 or OR 3 , wherein the substituents OR 3 , optionally form 5- or 6-membered rings via the radicals R 3 with further substituents on the phenyl or naphthyl ring; or provided that R 1 is acetyl, Ar 1 is 2-furyl, 2-pyrrolyl, 2-thienyl, 3-indolyl; M 1 is x is 2; R 3 is C 1 -C 20 alkyl; or R 3 is C 2 -C 12 alkyl which is substituted by OH, —O(CO)—C 1 -C 4 alkyl, —N(C 1 -C 4 alkyl) 2 , —N(CH 2 CH 2 OH) 2 , —N[CH 2 CH 2 O—(CO)—C 1 -C 4 alkyl or morpholinyl; or R 3 is C 2 -C 12 alkyl which is interrupted by one or more —O—; or R 3 is —(CH 2 CH 2 O) n+1 H or —(CH 2 CH 2 O) n (CO)—C 1 -C 4 alkyl; n is 1 to 3; and R 5 and R 6 are C 1 -C 4 alkyl (C) a photopolymerizable compound and which composition additionally comprises an epoxy compound which contains at least two epoxy groups in the molecule.