Low glass temperature organosiloxanes

Details Low glass temperature organosiloxanes Low glass temperature organosiloxanes

C - Chemistry, Metallurgy

07

C

C07C 69/92 (2006.01) C07D 239/52 (2006.01) C07D 303/44 (2006.01) C07D 317/34 (2006.01) C07D 405/12 (2006.01) C07D 407/12 (2006.01) C08G 77/38 (2006.01) C08L 83/07 (2006.01) C09D 7/12 (2006.01) C09K 19/40 (2006.01)

Patent

CA 2240817

Organosiloxanes having low transition temperatures comprise at least one group of the general formula 1 -(CH2)p-(O)q-C6H4-Z-(COO)s-[A-M]t-E-(CH2-CH2-O)a-VN and, if desired, a group of the general formula 2 - (CH2)m- (O) n- (A)t-Q-X where VN is a group -COO-CH=CH2, -COO-C(CH3)=CH2, -(CH2)U-OCH=CH2, -CH=CH2 or an oxiranyl group and X, Z, A, M, Q, E, m, n, p, q, r, s, t, u, v and a are as defined herein.

Des organosiloxanes à basses températures de transition vitreuse renferment au moins un groupe de formule générale 1 -(CH2)p-(O)q-C6H4-Z-(COO)s-[A-M]t-E-(CH2-CH2-O)a-VN et, si souhaité, un groupe de formule générale 2 -(CH2)m- (O) n- (A)t-Q-X, où VN est un groupe -COO-CH=CH2, -COO-C(CH3)=CH2, -(CH2)U-OCH=CH2, -CH=CH2, ou un groupe oxiranyle, et X, Z, A, M, Q, E, m, n, p, q, r, s, t, u, v et a correspondent aux définitions données ici.

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