| 摘要 |
A co-modified organopolysiloxane having a group having a siloxane dendron structure and a group containing a saccharide component (e.g. a sugar lactone amide alkyl group) is disclosed. The present invention also provides a method for producing the co-modified organopolysiloxane, as well as a surface treatment agent, a powder treatment agent, a powder composition, a powder-in-oil dispersion, a preparation for external use, and the like containing the co-modified organopolysiloxane. |
| 主权项 |
1. A co-modified organopolysiloxane having a group (L1) having a siloxane dendron structure and a group (Q) containing a saccharide component of formula (1)
R1aR2bL1cQdSiO(4-a-b-c-d)/2 (1)wherein
each R1 is independently a substituted or unsubstituted monovalent hydrocarbon group having from 1 to 30 carbon atoms, or a hydrogen atom; each R2 is independently a substituted or unsubstituted straight-chain or branched monovalent hydrocarbon group having from 6 to 30 carbon atoms, or a chainlike organosiloxane group of formula (2-1); wherein each R11 is independently a substituted or unsubstituted monovalent hydrocarbon group having from 1 to 30 carbon atoms, a hydroxyl group, or a hydrogen atom, with at least one of the R11 moieties being the monovalent hydrocarbon group; t is a number in a range of 2 to 10; and r is a number in a range of 1 to 500; or of formula (2-2) below: wherein R11 and r are defined above; and L1 represents a silylalkyl group having a siloxane dendron structure of formula (3) when i=1;wherein each R3 independently represents a substituted or unsubstituted, straight or branched monovalent hydrocarbon group having from 1 to 30 carbon atoms; R4 each independently represents an alkyl group having from 1 to 6 carbon atoms or phenyl group; Z represents a divalent organic group; i represents a generation of the aforementioned silylalkyl group represented by Li and is an integer of 1 to k when k is a number of generations that is a number of repetitions of the silylalkyl group; the number of generations k is an integer from 1 to 10; Li+1 is the silylalkyl group when i is less than k, and R4 when i=k, and hi is a number in a range from 0 to 3;
Q is a group containing a saccharide component of formula X-(G1)n-(G2)m, wherein G1 is a saccharide component having from 5 to 12 carbon atoms; n+m is from 1 to 10; and n or m may be 0, G2 is a saccharide component having from 5 to 12 carbon atoms which may be additionally substituted with an organic or organic silicon group; X is a linking group independently selected from the following linking groups:
—R5—NHC(O)—R6—;—R5—NHC(O)O—R6—;—R5—NH—C(O)—NH—R6—;—R5—O—R6—;—R5—CH(OH)—CH2—O—R6—;—R5—S—R6—;—R5—CH(OH)—CH2—NH—R6—; and—R5—N(R1)—R6—; wherein R5 and R6 are divalent spacer groups containing (Ra)u, (Rb)v, and (Rc)x, where at least one of u, v, and x must be 1; Ra and Rc are alkylene groups having from 1 to 12 carbon atoms or polyoxyalkylene groups of formula (RdO)p, where Rd is H or has from 1 to 12 carbon atoms; p is any integer from 1 to 50; each (RdO) moiety may be the same or different; Rb is —N(Re)—, where Re is H, an alkyl group having from 1 to 12 carbon atoms, or X—Y, where X is as defined above or R5, and Y is a carboxylic acid, phosphate, sulfate, sulfonate, or tertiary ammonium group; and a, b, c, and d are numbers in ranges so that 1.0≦a+b≦2.5, 0.001≦c≦1.5, and 0.001≦d ≦1.5. |
