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US 2026/0234342 A1Published application
Carboxy group-modified organopolysiloxane having (poly)glycerol group or polyoxyalkylene group, and cosmetic preparation
AssigneeShin-Etsu Chemical Co., Ltd.
InventorTaro IMAI
Life of this patent
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Abstract
Provided are an organopolysiloxane having excellent emulsification stability and a cosmetic preparation including the organopolysiloxane are provided. The organopolysiloxane is a carboxy group-modified organopolysiloxane including a (poly)glycerol group or polyoxyalkylene group represented by the following formula (1): wherein, in the formula, R1 is a monovalent hydrocarbon group, R2 is a (poly)glycerol group or a polyoxyalkylene group, R3 is a carboxy group, and 0≤a≤100, 1≤b≤10, 1≤c≤10, 0≤d≤10, e≥0, and f≥0.
Claims5
A carboxy group-modified organopolysiloxane represented by following formula (1):
- wherein, in the formula, R1s are independently a monovalent hydrocarbon group selected from an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 15 carbon atoms, and an aralkyl group having 7 to 15 carbon atoms;
- R2s are independently a group represented by following formula (2) or (3):
- wherein, in the formula, R5 is a group in which a hydrogen atom or a monovalent hydrocarbon group having 1 to 30 carbon atoms independently binds to a terminal oxygen atom of the group represented by following formula (2-1):
- or to a terminal oxygen atom of a plurality of linked groups represented by the formula (2-1), g in the formula (2) is an integer satisfying 0≤g≤20, and the number h of the groups represented by the formula (2-1) in R5 is an integer satisfying 1≤h≤10;
- wherein, in the formula, R6 is a hydrogen atom or a monovalent hydrocarbon group having 1 to 30 carbon atoms, i is an integer satisfying 0≤i≤20, j1 and j2 are integers satisfying 2≤j1≤100 and 0≤j2≤100, respectively, and the order of units grouped by j1 and units grouped by j2 is arbitrary;
- R3s are independently a group represented by following formula (4):
- wherein, in the formula, L1 and L2 are each a divalent linking group having 2 to 20 carbon atoms, R7 is a divalent alkylene group having 2 to 4 carbon atoms, k is an integer satisfying 0≤k≤100, and z is 0 or 1;
- R4s are independently a group represented by following formula (5), (6), (7), or (8):
- wherein, in the formulae, R1 is as defined above, n and m are integers satisfying 0≤n≤5 and 0≤m≤100, respectively, and m1, m2, and m3 are integers satisfying 0≤m1≤2, 0≤m2≤2, and 0≤m3≤2;
- and
- a, b, c, d, e, and f are integers satisfying the followings:
- 0
- ≤
- a
- ≤
- 100
- ;
- 1
- ≤
- b
- ≤
- 10
- ;
- 1
- ≤
- c
- ≤
- 10
- ;
- 0
- ≤
- d
- ≤
- 10
- ;
- e
- ≥
- 0
- ;
- and
-
- f
- ≥
- 0
- ,
- and
- the order of constituting units grouped by a to f, respectively, is arbitrary.
44 more elements
Dependencies are inferred from the claim text.