Patent ID: 6344521
Filing Date: 2002-02-05
Classification: C08F,C08G,Y10S

Abstract:
Protected functionalized triblock silicone block copolymers selected from the group consisting of:(R7R8R9â€”A)mâ€”Tâ€”Zâ€”Qnâ€”Câ€²â€”(R1R2Siâ€”O)vâ€”SiR12R13â€”(Oâ€”SiR10R11)wâ€”Dâ€”Râ€ƒâ€ƒ(X), (R7R8R9â€”A)mâ€”Tâ€”Zâ€”Qnâ€”Câ€²â€”(R1R2Siâ€”O)vâ€”SiR12R13â€”Dâ€”Râ€ƒâ€ƒ(XI) and(R7R8R9â€”A)mâ€”Tâ€”Zâ€”Qnâ€”Câ€²â€”SiR12R13â€”(Oâ€”SiR10R11)wâ€”Dâ€”Râ€ƒâ€ƒ(XII) wherein:each Q is independently selected from an unsaturated or hydrogenated hydrocarbyl group derived by incorporation of one or more conjugated diene hydrocarbons, one or more alkenylsubstituted aromatic compounds, or a mixture of one or more dienes with one or more alkenylsubstituted aromatic compounds; each n is independently an integer from 0 to 5; each Z is independently selected from a branched or straight chain hydrocarbon connecting group which contains 3-25 carbon atoms, optionally substituted with aryl or substituted aryl; each Câ€² and D is independently selected from a hydrogenated or unsaturated block derived by anionic polymerization of one or more conjugated dienes, one or more alkenylsubstituted aromatic compounds, or a mixture of one or more conjugated dienes and one or more alkenylsubstituted aromatic compounds; each T is independently selected from the group consisting of oxygen, sulfur, and nitrogen groups and mixtures thereof; each (Aâ€”R7R8R9)m is independently a protecting group in which A is an element selected from Group IVa of the Periodic Table of the Elements; R7, R8, and R9 are each independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, cycloalkyl and substituted cycloalkyl or when T is nitrogen, each R9 is optionally a â€”(CRâ€²Râ€²)l-group linking two A wherein each Râ€² is each independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, cycloalkyl, and substituted cycloalkyl, and l is an integer from 1 to 7; and m is 1 when T is oxygen or sulfur, and 2 when T is nitrogen; each R1, R2, R10, R11, R12, and R13 is independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, aryl, and substituted aryl; each R is independently selected from a hydrocarbyl group of 1-20 carbon atoms derived from an unfunctionalized initiator capable of initiating polymerization of conjugated dienes or alkenyl substituted aromatic compounds; and each w and v is independently selected from an integer from 2 to 100,000.