O/W type emulsion composition

• US 4,776,976 A
• Filed: 05/06/1987
• Issued: 10/11/1988
• Est. Priority Date: 05/06/1986
• Status: Expired due to Term

• Current Assignee: KAO Corporation
• Original Assignee: KAO Corporation
• Inventors: Nakamura, Tohru, Suzuki, Toshiyuki
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US07/046,288
• Time in Patent Office: 524 Days
• Field of Search: 252/312, 252/DIG. 7, 252/DIG. 17, 252/356, 514/561, 514/938, 514/939, 514/943
• US Class Current: 516/56
• CPC Class Codes: A61K 8/062 Oil-in-water emulsions
• CPC Class Codes: A61K 8/345 containing more than one hydroxy group
• CPC Class Codes: A61K 8/55 Phosphorus compounds
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 5/00 Preparations for care of the hair
• CPC Class Codes: C09K 23/017 Mixtures of compounds
• CPC Class Codes: Y10S 516/06 Protein or carboxylic compound containing

Abstract

A composition comprising; (A) a basic amino acid salt of a higher aliphatic phosphate represented by the following formula (I): ##STR1## in which R₁ is an alkyl or alkenyl group having from 12 to 22 carbon atoms, and (B) an α-monoalkyl glyceryl ether represented by the following formula (II): ##STR2## in which R₂ is an alkyl group having from 12 to 24 carbon atoms. The composition provides an O/W type emulsion suitable for use as cosmetics which has a small viscosity decrease at a high temperature and a small viscosity increase at a low temperature, is stable during storage over a long period of time, provides good feelings and a moisture retaining effect on use to the skin, and yet has an excellent safety.

Claims

1. An oil in water type emulsion composition comprising:

(A) 0.01 to 5 wt.% of a basic amino acid salt of a higher aliphatic phosphate represented by the following formula (I) ##STR5## in which R₁ is an alkyl or alkenyl group having from 12 to 22 carbon atoms, said basic amino acid being selected from the group consisting of arginine, lysine, ornithine, histidine, and δ

-hydroxylysine, and

(B) an α

-monoalkyl glyceryl ether, in an amount of 0.1 to 20 times by weight of said component (A), which is represented by the following formula (II);

##STR6## in which R₂ is an alkyl group having from 12 to 24 carbon atoms.

2. An oil in water type emulsion composition as claimed in claim 1 wherein the content of oil is from 1 to 70 wt.%, and the content of water is from 20 to 90 wt.%.

3. An oil in water type emulsion composition as claimed in claims 1 or 2, in which said basic amino acid is L-arginine.

4. An oil in water type emulsion composition as claimed in claims 1 or 2, in which said α

-monoalkyl glyceryl ether is α

-monopalmityl glyceryl ether or α

-monostearyl glyceryl ether.