Organopolysiloxanes containing ester groups

Details Organopolysiloxanes containing ester groups Organopolysiloxanes containing ester groups

C - Chemistry, Metallurgy

08

G

C08G 77/14 (2006.01) B01D 19/04 (2006.01) C08G 77/20 (2006.01) C08G 77/38 (2006.01) C08G 77/445 (2006.01) C08G 77/46 (2006.01)

Patent

CA 2128815

Organopolysiloxanes which contain ester groups and comprise units of the formula (See Fig. I), in which R may be an identical or different monovalent, SiC-bonded hydrocarbon radical having 1 to 18 carbon atoms, A may be an identical or different radical of the formula (See Fig. II) in which R1, R2, R3, c, v, w, s, t. is 0 or an integer, the sum of s and t being an integer from 1 to 20, x is 0 or 1, y is 0 or 1, the sum of x and y being 1 or 2, a is 0, 1, 2 or 3, and b is 0, 1 or 2, with the proviso that the sum of a and b is less than or equal to 3 and the organopolysiloxane contains at least one radical A per molecule.

Organopolysiloxanes qui contiennent des groupes ester et comprennent des motifs de formule (Voir Fig. I), où R peut être un radical hydrocarboné monovalent à liaison Si-C de 1 à 18 atomes de carbone identique ou différent, A peut être un radical identique ou différent de formule (Voir Fig. II) où R1, R2, R3, c, v, w, s, t correspondent à 0 ou à un nombre entier, la somme de s et t étant un nombre entier compris entre 1 et 20, x est 0 ou 1, y est 0 ou 1, la somme de x et y étant 1 ou 2, a est 0, 1, 2 ou 3 et b est 0, 1 ou 2, à la condition que la somme de a et b soit inférieure ou égale à 3 et que l'organopolysiloxane contienne au moins un radical A par molécule.

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