Siloxane monomers and oligomers

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

Reexamination Certificate

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C556S462000, C528S015000, C528S031000

Reexamination Certificate

active

07999127

ABSTRACT:
A process for preparing a cationically photopolymerizable siloxane oligomer, that includes: combining a platinum group catalyst, a hydrosiloxane compound selected fromand a vinyl or allyl compound comprising a cationically photopolymerizable functionality; and then contacting the product with oxygen in the presence of the catalyst to form the cationically photopolymerizable multifunctional siloxane oligomer. R1and R3are independently fluoroethyl, methyl or phenyl.

REFERENCES:
patent: 5484950 (1996-01-01), Crivello
patent: 2002/0137870 (2002-09-01), Crivello
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International Search Report from International Application No. PCT/US2004/011607 completed Feb. 14, 2005 and mailed on Mar. 4, 2005.

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