Organo-silicon compounds and their use as photoinitiators

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...

Reexamination Certificate

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C522S036000, C522S065000, C522S066000, C556S051000, C556S052000, C556S055000, C556S081000, C556S087000, C556S105000, C556S400000, C556S431000, C556S436000, C556S437000, C556S009000, C556S012000

Reexamination Certificate

active

06849668

ABSTRACT:
A multi-functional photoinitiator of formula (I)in-line-formulae description="In-line Formulae" end="lead"?R1m—Q—(A1—PI)n  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein Q is a heteroatom selected from Si, Ti, Zr and Sn or any two independently selected such heteroatoms linked by a covalent bond or a by C1-16(preferably C1-9) alkylene group, n is at least 2 and n+m=the functionality of Q, each R1is the same or different and is a non-photoinitiator group; each group PI is the same or different and is a photoinitiator group.Each —A1— is the same or different and is selected from linking groups of formula —(A2)p—Z— wherein p has an average of from 1 to 10, preferably from 3 to 5 and the groups —A2— are either (a) each independently selected from C2-4alkyleneoxy groups; or (b) each independently selected from groups of formula —O—(CH2)qCO— wherein q is from 3 to 5, and Z is selected from —O—, —S— and —NR6— where R6is C1-6alkyl.

REFERENCES:
patent: 3905816 (1975-09-01), Boardman et al.
patent: 3924520 (1975-12-01), Boardman et al.
patent: 4536265 (1985-08-01), Fabrizio et al.
patent: 4587276 (1986-05-01), Lien et al.
patent: 4748087 (1988-05-01), Davidson et al.
patent: 4833035 (1989-05-01), Eidenschink et al.
patent: 4922004 (1990-05-01), Köhler et al.
patent: 4922044 (1990-05-01), Yates et al.
patent: 5071936 (1991-12-01), Himori
patent: 5192642 (1993-03-01), Steiner et al.
patent: 5229253 (1993-07-01), Zertani et al.
patent: 5527925 (1996-06-01), Chabrecek et al.
patent: 5532112 (1996-07-01), Köhler et al.
patent: 5776658 (1998-07-01), Niesert et al.
patent: 6048667 (2000-04-01), Eldin et al.
patent: 6139770 (2000-10-01), Katsumoto et al.
patent: A6603994 (1995-02-01), None
patent: 0161463 (1985-04-01), None
patent: 0228145 (1986-01-01), None
patent: 0228145 (1987-07-01), None
patent: 0632329 (1994-06-01), None
patent: 2280905 (1995-02-01), None
patent: 0798599 (1997-10-01), None
patent: A89230603 (1989-09-01), None
patent: 4-107568 (1992-04-01), None
patent: 4-146938 (1992-05-01), None
patent: 6263811 (1994-09-01), None
patent: 6263812 (1994-09-01), None
patent: 6263813 (1994-09-01), None
patent: 6263814 (1994-09-01), None
patent: 7-150054 (1995-06-01), None
patent: WO9717378 (1997-05-01), None
patent: WO9620919 (1996-07-01), None
patent: WO9707161 (1997-02-01), None
James Light, et al., “A Water Soluble Tin Hydride Reagent”,Tetrahedron Lett., vol. 31, No. 21, 1990, pp. 2957-2958.
“Polymers Containing Side-Chain Benzophenone Chromophores: A New Class of Highly Efficient Polymerization Photoinitiators,” by Carlo Carlini, et al., Polymer Magazine, May 1993, vol. 24.
“U.V. and E.B. Curing Formulation for Printing Inks, Coatings and Paints,” edited by Dr. R. Holman, Bsc. PhD.
“Polymeric Photoinitiators Bearing Side-Chain Benzoin Methyl Ether and Tertiary Amine Moieties For Fast U.V. Curable Coatings,” by C. Carlini, et al.
“Photoinitators With Functional Groups. Part I. Polymer Photoinitators,” by R. Klos, et al.
“The Printing Ink Manual,” edited Dr. R. H. Leach, VNR International.

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