Radiation curable compositions

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

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522 40, 522 59, 522 63, 522 65, 522 99, 4302701, C08J 328

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057894604

ABSTRACT:
Curable compositions comprising a substance that produces a base when exposed to radiation and a polymer molecule that contains silicon-hydrogen bonds which react with hydroxyl groups under the action of the base to form silicon-oxygen bonds (Si--O) and hydrogen molecules. These compositions cure when exposed to radiation. A pattern can be formed by placing a mask between a coating of the composition and the radiation source during this exposure episode and thereafter dissolving the uncured composition. The compositions have little weight loss during their cure, they can be cured by low intensity radiation, and they yield heat-resistant cured products.

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Database WPI, Week 9426, Derwent Publications Ltd., London, GB, AN 94-211957, May 27, 1994.
Chemistry and Technology of Silicones, 2nd Edition, p. 90, Walter Noll, Academic Press, Inc. (London) Ltd., 1968.
Organosilicon Compounds, p. 200, C. Eaborn, Butterworths Scientific Publications (London) 1960.
Chemistry and Technology of Silicones, p. 205, p. 397.
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J.M. Frechet and J.F. Cameron, Pdym. Mater. Sci. Eng., 64, 55 (1991).

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