Block type-modified organopolysiloxane, method for using the organopolysiloxane, cosmetic, and method for producing the organopolysiloxane

摘要

A block type organopolysiloxane is represented by the following average composition formula (1),;
wherein each R1 independently represents a monovalent hydrocarbon group having 1 to 12 carbons; R2 represents any of a hydrogen atom, a monovalent hydrocarbon group having 1 to 15 carbons, and a monovalent acyl group having 2 to 7 carbons; R3 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 4 carbons; X represents a divalent hydrocarbon groups having 2 to 15 carbons; “n” represents an integer of 1 or more; “m” represents an integer of 1 or more; “s” represents an integer of 0 to 100; “t” represents an integer of 0 to 50; “z” represents an integer of 0 to 50; each R4 independently represents a hydrogen atom, a hydroxyl group, an alkoxy group, or an organic group represented by the general formula (2).
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主权项

1. A block type organopolysiloxane represented by the formula (1), wherein each R1 independently represents a monovalent hydrocarbon group having from 1 to 12 carbons; R2 represents any of a hydrogen atom, a monovalent hydrocarbon group having 1 to 15 carbons, and a monovalent acyl group having 2 to 7 carbons; R3 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 4 carbons; X represents a divalent hydrocarbon group having 2 to 15 carbons; n represents an integer of 1 or more; m represents an integer of 1 or more; s represents an integer of 0 to 100; t represents an integer of 0 to 50; z represents an integer of 0 to 50; s+t+z ≧1; and each R4 independently represents a hydrogen atom, a hydroxyl group, an alkoxy group, or an organic group represented by the following general formula (2), wherein Y represents a hydrogen atom, or a monovalent hydrocarbon group having 2 to 15 carbons and a carbon-carbon double bond.