Novel organosilicon compounds and compositions containing them

C - Chemistry – Metallurgy – 07 – F

Patent

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C07F 7/18 (2006.01) B05D 3/06 (2006.01) C08F 2/48 (2006.01) C08F 130/08 (2006.01) C08G 77/20 (2006.01) C08G 77/38 (2006.01) C08G 77/50 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2082835

Organosilicon compounds with a siloxane portion and groups of the general formula -OR'OCH=CHR" (i) linked via an si-o-c bond, wherein R' is a divalent hydrocarbon radical or a group -R°-(OR°)n-, wherein R° is alkylene and n is from 1 to 12, and R" is H or alky],are useful in radiation curable compositions, in which they are mixed with an initiator. The compositions are particularly useful in UV radiation curable release coatings.

Divulgation de composés organosiliciés renfermant une partie siloxane et des groupements de formule générale -OR'OCH=CHR" (i), liés par l'intermédiaire d'une liaison Si-O-C. Dans cette formule, R' est un radical divalent hydrocarboné ou un groupement -R.degré.-(OR.degré.)n-, dans lequel R.degré. est un alkylène et n un nombre allant de 1 à 12, et R" est un atome d'hydrogène ou un radical alkyle. Ces composés sont utiles pour des compositions pouvant être durcies à la lumière, dans lesquelles elles sont mélangées avec un amorceur. Ces compositions sont particulièrement utiles pour des revêtements de démoulage pouvant être durcis par la lumière UV.

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