| 摘要 |
PROBLEM TO BE SOLVED: To provide an oily cosmetic sustaining smooth feeling without causing stringing.SOLUTION: An oily cosmetic contains a block polymer comprising a polymer segment A including a constitutional unit represented by a general formula (1) and a polymer segment B including the constitutional unit represented by the general formula (1) and a constitutional unit represented by a general formula (2). The weight-average molecular weight of the polymer segment A is from 5,000 to 200,000; the weight-average molecular weight of the polymer segment B is from 95,000 to 1,000,000; and in the polymer segment B, the mass ratio of the content of the constitutional unit represented by the general formula (1) to the content of the constitutional unit represented by the general formula (2) is 1/99 or more and 40/60 or less.SELECTED DRAWING: None |
