Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COMPOSITION CONTAINING AT LEAST ONE OXIDATION-SENSITIVE HYDROPHILIC ACTIVE SUBSTANCE STABILIZED BY AT LEAST ONE MALEIC ANHYDRIDE COPOLYMER
Document Type and Number:
Japanese Patent JP3795476
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To obtain a composition containing an oxidation-sensitive active substance selected from ascorbic acid and its derivatives exhibiting excellent cosmetic characteristics with regard to both the touch and tolerance, which can be preserved for a time without a particular measure and retains the activities of the active substance for improving the synthesis of a ceramide, the barrier performances of skin, and the differentiation of a keratinocyte.
SOLUTION: This composition for improving the synthesis of the ceramide in epidermis and/or for improving the barrier performances of skin comprises a physiologically allowable medium having an aqueous phase containing the following ingredients: at least one oxidation-sensitive hydrophilic active substance selected from ascorbic acid and its derivatives and at least one maleic anhydride copolymer comprising at least one maleic anhydride-based comonomer and at least one comonomer selected from among vinyl acetate, vinyl alcohol, vinylpyrrolidone, a 2-20C olefin and styrene. The composition is applied for cosmetics and/or dermatology.


Inventors:
Biatry, Bruno
Application Number:
JP2003000175419
Publication Date:
July 12, 2006
Filing Date:
June 19, 2003
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
L'oreal SA.
International Classes:
A61K8/00; A61K8/81; A61K8/02; A61K8/06; A61K8/11; A61K8/30; A61K8/31; A61K8/33; A61K8/34; A61K8/35; A61K8/36; A61K8/365; A61K8/368; A61K8/37; A61K8/40; A61K8/41; A61K8/42; A61K8/44; A61K8/46; A61K8/49; A61K8/55; A61K8/58; A61K8/60; A61K8/63; A61K8/67; A61K8/68; A61K8/72; A61K8/73; A61K8/92; A61K8/96; A61K8/97; A61K8/98; A61K31/375; A61K45/00; A61K47/32; A61P17/00; A61P17/16; A61P39/06; A61P43/00; A61Q5/00; A61Q5/08; A61Q17/00; A61Q17/04; A61Q19/00; A61Q19/02; A61Q19/08; C07D307/62; (IPC1-7): A61K7/48; A61K7/00
Domestic Patent References:
JP9040543A
JP3109308A
JP63226358A
JP2001261533A
JP2002060315A
JP2001354551A
Attorney, Agent or Firm:
志賀 正武
高橋 詔男
渡邊 隆
青山 正和
鈴木 三義
西 和哉
村山 靖彦
実広 信哉



 
Previous Patent: KNIFE EXCHANGER FOR DRUM TYPE SHEAR

Next Patent: MOTOR DRIVER