| 摘要 |
PURPOSE:To obtain a material for cosmetics containing a specific organopolysiloxane.polyoxyalkylene copolymer as a main material without essentially emitting rancid and irritant smell even in contact with water. CONSTITUTION:A material for cosmetics containing an organopolysiloxane.polyoxyalkylene copolymer expressed by the formula (R<1> is H, 1-18C monofunctional hydrocarbon, etc.; R<2> is 1-30C monofunctional hydrocarbon; l is 2-4; n is 3-100; m is 2 or 3; a and b are 0.01<a<=1; 1<b<=2.5) as a main material. The copolymer expressed by the formula is readily obtained by subjecting a carboxyl group-containing organopolysiloxane and a hydroxyl group-containing polyoxyalkylene compound to esterifying reaction. |
