Patent ID: 6566480
Filing Date: 2003-05-20
Classification: C08G

Abstract:
A polysiloxane-substituted polymer containing at least 2 equivalents of a diene copolymer per a polysiloxane unit and having a number average molecular weight of 1,000 to 5,000,000, the polysiloxane-substituted polymer being prepared by reacting a living polymeric group of the diene copolymer with a reactive polysiloxane compound represented by the formulaYâ€”{C(R3)(R4)}câ€”CH2CH2â€”Si(R1)(R2)â€”{Oâ€”Si(R1)(R2)}dâ€”CH2CH2â€”C(R3)(R4)}câ€”Y in which Y is (X)a(R)bSi, (X)a(R)bC, or (X)e(R1)fâ€”Bzâ€”C(R5)1(X)j;X is a halogen atom selected from F, Cl, Br and I; R is a hydrogen or an alkyl group from C1 to C20 including methyl, ethyl or propyl; R1, R3, R4 and R5 are defined as R, or a halogen-substituted alkyl or silane group; R2 is defined as X or R1, or (X)g(R3)hCâ€”{C(R3)(R4)}c; a is an integer from 1 to 3, and b is an integer from 0 to 2, wherein a+b=3; c is an integer from 0 to 1000; d is an integer from 1 to 50000; e and f are independently an integer from 0 to 4, wherein e+f=4; g and h are independently an integer from 0 to 3, wherein g+h=3; i and j are independently an integer from 0 to 3, wherein i+j=3; and Bz is a benzene ring.