Patent ID: 6750271
Filing Date: 2004-06-15
Classification: B01J,D06M

Abstract:
Polymer particles having a volume average particle diameter of 0.001 to 30 &mgr;m, which satisfy at least one of conditions (A) and (B):Condition (A) where the polymer particles comprise chitosan and a polymer (a) of an organic acid having a reactive vinyl group and/or a salt thereof as the membrane wall and a hydrophobic protecting agent for skin and/or hair (referred to hereinafter as the protecting agent) (b) as the core material; Condition (B) where the polymer particles comprise an organic polymer (c) as the membrane wall and at least one member selected from the group consisting of: (I) ceramide and/or structural analogues of ceramide and (II) C24-44 dialkyl ethers.