Trifunctional photoinitiators

Details Trifunctional photoinitiators Trifunctional photoinitiators

2004-05-04

2008-12-09

Eashoo, Mark (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C568S319000, C568S323000, C568S325000, C568S336000

Reexamination Certificate

active

07462650

ABSTRACT:
The Invention relates to novel ketones of formulae (I) and (II) wherein R1, R2, R3and R4are, for example, C1-C8alkyl, R5is, for example, hydrogen, A is CI, Br, -0-R7, —NR8R9or —S—R16, A′ is —O—, —NH— or —NR8—, X and Y are each independently of the other —O—R10or —N(R11)(R12), n is an integer from 1 to 10, R6is, for example, an n-valent radical of linear or branched C2-C20alkyl the carbon chain of which may be interrupted by cyclohexanediyl, phenylene, —CH(OH)—, —C(C2H5)(CH2—CH2—OH)—, —C(CH3)(CH2—CH2—OH)—, —C(CH2—CH2—OH)2—, —N(CH3)—, —N(C2H5)—, —N(CH2—CH2—OH)—, —CO—O—, —O—CO—, —P(CH2—CH2—OH)—, —P(O)(CH2—CH2—OH)—, -0-P(O—CH2—CH2—OH)—O—, -0-P(O)(0-CH2—CH2—OH)—O—, —O-cyclohexanediyl-C(CH3)2-Cyclohexanediyl-O—, —O-phenylene-C(CH3)2-phenylene-O—, —O-phenylene-CH2-phenylene-O—, —Si(CH3)2—, -0-Si(CH3)2—O—, —O—Si(CH3)(0-CH3)—O—, —Si(CH3)(R17)—O—Si(CH3)(R18)—, 5-(2-hydroxyethyl)-[1,3,5]triazinane-2,4,6-trione-1,3-diyl and/or by from one to nine oxygen atoms.

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