Siloxane copolymers containing alkenyloxy groups, a process...

Details Siloxane copolymers containing alkenyloxy groups, a process... Siloxane copolymers containing alkenyloxy groups, a process...

C - Chemistry, Metallurgy

08

G

402/16, 204/91.3

C08G 77/20 (2006.01) B05D 3/06 (2006.01) C08G 77/38 (2006.01) C08G 77/48 (2006.01) C08L 83/14 (2006.01) C09D 183/07 (2006.01) C09D 183/14 (2006.01)

Patent

CA 2035396

SILOXANE COPOLYMERS CONTAINING ALKENYLOXY GROUPS, A PROCESS FOR PREPARING THE SAME AND THEIR USE Abstract of the Disc1osure Novel siloxane copolymers containing alkenyloxy groups and containing (a) siloxane units of the formula Image (I) (b) at least one siloxane unit per molecule of the formula Image (II) and optionally (c) at least one unit per molecule selected from the group comprising units of the formula (III) Image Image ( IV), and (V) Image in which R represents the same or different hydrocarbon radicals having from 1 to 18. carbon atom(s) per radical or halogenated hydrocarbon radicals having from 1 to 18 carbon atom(s) per radical, R1 represents the same or different alkyl radicals having from 1 to 4 carbon atom(s) per radical and can be substituted by an ether oxygen atom, Q represents a radical of the formula -CH2CHR2CHR2OY(OCR2=CR2CH3)X-1 in which R2 is the same or different and represents a hydrogen atom or a methyl radical, Y represents trivalent, tetravalent, pentavalent or hexava- valent hydrocarbon radical having from 2 to 20 carbon atoms per radical, which can be substituted by groups of the formula - OH, - OR3, - OSiR43, Image -X or can be interrupted by at least one oxygen atom or sulfur atom or one carbonyl group, or Y represents a trivalent radical of the formula =P, =P=O or =SiR5 in which R3 is an alkyl radical having from 1 to 6 carbon atom(s) per radical, R4 is a radical selected from the group consisting of a methyl, ethyl, isopropyl, tert-butyl and phenyl radical, X represents a halogen atom, and R5 is a monovalent hydrocarbon radical having from 1 to 8 carbon atom(s) per radical, or Y represents a tetravalent element, such as ?-C-? , -Si- and -Ti-. Q1 is a radical of the formula Image Q2 represents a radical of the formula Image and Q3 represents a radical of the formula Image (x-4>0) a is 0, 1, 2 or 3, b is 0, 1, 2 or 3, the sum of a + b is not greater than 3 c is 0, 1 or 2 and x is 3, 4, 5 or 6.

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