| US 7,612,051 B2 | ||
| Powder composition, dispersion of this powder composition in oil and cosmetic material containing same | ||
| Masanao Kamei, Gumma (Japan); and Toru Shimizu, Tokyo (Japan) | ||
| Assigned to Shin-Etsu Chemical Co., Ltd., Tokyo (Japan) | ||
| Filed on Jan. 17, 2003, as Appl. No. 10/346,176. | ||
| Application 10/346176 is a continuation in part of application No. PCT/JP01/06310, filed on Jul. 19, 2001. | ||
| Claims priority of application No. 2000-220892 (JP), filed on Jul. 21, 2000. | ||
| Prior Publication US 2003/0185771 A1, Oct. 02, 2003 | ||
| Int. Cl. C07F 7/02 (2006.01); A61K 8/18 (2006.01); A61K 8/00 (2006.01); A61K 8/58 (2006.01); A61K 8/27 (2006.01); A61K 8/02 (2006.01); A61K 31/665 (2006.01); A61Q 17/04 (2006.01); A61Q 1/02 (2006.01); A61Q 1/00 (2006.01); A61Q 1/12 (2006.01); A61F 2/00 (2006.01) | ||
| U.S. Cl. 514—100 [424/59; 424/63; 424/67; 424/69; 424/401; 424/484; 514/937; 556/400] | 22 Claims |
| 1. A powder composition comprising a powder and a silicone of formula (1)
R1aR2bR3cSiO(4−a−b−c)/2 (1)
wherein
R1 are, each independently, an alkyl, aryl, aralkyl or fluorinated alkyl group having 1-30 carbon atoms,
R2 is a group having one or more alcoholic hydroxy groups,
R3 is of formula (2)
 R4 is oxygen,
R5 are, each independently, an alkyl, aryl, aralkyl or fluorinated alkyl group having 1-30 carbon atoms or a hydroxyl group,
and
1.0 ≤a ≤2.5,
0.001≤b≤1,
0.001≤c≤1,
d is an integer of 0≤d≤500, and
1.5≤a+b+c≤2.6.
|