| 摘要 |
A polyorganosiloxane comprising at least one organofunctional group per molecule having multiple hydrolyzable groups. The organofunctional group is described by formula -Zb-R4(Z-SiR2nX3-n)a, where each R2 is an independently selected monovalent hydrocarbon radical comprising 1 to about 18 carbon atoms; each Z is independently selected from the group consisting of divalent hydrocarbon radicals comprising about 2 to 18 carbon atoms and a combination of divalent hydrocarbon radicals and siloxane segments; R4 is independently selected from the group consisting of a silicon atom and a siloxane radical comprising at least two silicon atoms and each Z is bonded to a silicon atom of R4 with the remaining valences of the silicon atoms of R4 being bonded to a hydrogen atom, a monovalent hydrocarbon radical comprising 1 to about 18 carbon atoms, or forming siloxane bonds; each X is independently selected from the group consisting of halogen, alkoxy, acyloxy, and ketoximo; n is 0, 1, or 2; a is at least 2; and b is 0 or 1, provided, when b is 0, R4 is bonded to the polyorganosiloxane through a siloxane bond.
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