Cosmetic composition

• US 5,219,560 A
• Filed: 07/10/1991
• Issued: 06/15/1993
• Est. Priority Date: 03/20/1989
• Status: Expired due to Term

• Current Assignee: Kobayashi Noodle Co., Ltd.
• Original Assignee: Kobayashi Noodle Co., Ltd.
• Inventors: Yamazoe, Miki, Sugisaki, Tosiaki, Suzuki, Kazuhiro, Shimizu, Toru
• Primary Examiner(s): Page, Thurman K.
• Assistant Examiner(s): Hulina, Amy
• Application Number:
  US07/728,146
• Time in Patent Office: 706 Days
• Field of Search: 526/279, 525/72, 424/401, 424/63, 424/78.03, 514/844, 514/944
• US Class Current: 424/63
• CPC Class Codes: A61K 8/042 Gels
• CPC Class Codes: A61K 8/06 Emulsions
• CPC Class Codes: A61K 8/375 the alcohol moiety containing more than one hydroxy group
• CPC Class Codes: A61K 8/585 Organosilicon compounds
• CPC Class Codes: A61K 8/732 Starch; Amylose; Amylopectin; Derivatives thereof
• CPC Class Codes: A61K 8/88 Polyamides
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61K 8/895 containing silicon bound to unsaturated aliphatic groups, e.g. vinyl dimethicone
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 1/06 Lipsticks
• CPC Class Codes: A61Q 1/10 for eyes, e.g. eyeliner, mascara
• CPC Class Codes: A61Q 17/04 Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 3/02 Nail coatings
• CPC Class Codes: C08F 290/068 Polysiloxanes
• CPC Class Codes: C08G 77/20 containing silicon bound to unsaturated aliphatic groups C08G77/045 takes precedence
• CPC Class Codes: C08L 55/005 Homopolymers or copolymers obtained by polymerisation of macromolecular compounds terminated by a carbon-to-carbon double bond

Abstract

Cosmetic comprising (A) a specific acryl-silicone graft copolymer having an organosiloxane side chain is disclosed. The copolymer is prepared by radical polymerization of (i) a dimethylpolysiloxane compound having a polymerizable radical group on one of the molecular chain terminals and (ii) a radically polymerizable monomer comprising as major components an acrylate or methacrylate, or both. Various cosmetics including makeup cosmetics, o/w emulsion cosmetics, and w/o emulsion cosmetics, are prepared by using the copolymer in combination with (B) a low-viscosity silicone oil, (C) a partially cross-linked organopolysiloxane polymeric compound, (D) a low-boiling-point oil, (E) a volatile solvent, (F) a cosmetic powder material, (G) a polyacrylic acid, (H) a volatile hydrocarbon, (I) a surface active agent, or (J) water. The cosmetic compositions give a good sensation upon use, and exhibit superior water-repellency, water-resistance, oilresistance, and good retentiveness of the makeup.

Claims

1. A gel composition comprising:

(A) an acryl-silicone graft copolymer having a weight average molecular weight of 3,000-200,000 which is prepared by radical polymerization of (i) a dimethylpolysiloxane compound having a polymerizable radical group on one of the molecular chain terminals and having the formula (I);

##STR13## wherein R¹ is methyl or hydrogen, R² is a divalent, linear or branched hydrocarbon group of 1-10 carbon atoms optionally containing 1 or 2 ether bonds therein and 1 is a value of 3-300 and (ii) a radically polymerizable monomer comprising, as major components, an acrylate or methacrylate, or both, the ratio of dimethylpolysiloxane compound (i) to radically polymerizable monomer (ii) ranging from 1;

19-2;

1; and

(B) a low-viscosity silicone oil having a viscosity of less than 50 cs, the ratio of components (A);

(B) ranging from 5;

95-70;

30.

2. A gel composition for cosmetic purposes, consisting essentially of:

from 5-70 wt. % of an acryl-silicone graft copolymer (A) having a weight average molecular weight of 3,000-200,000 which is prepared by radical polymerization of (i) a dimethylpolysiloxane compound having a polymerizable radical group on one of the molecular chain terminals and having the formula (I);

##STR14## wherein R¹ is methyl or hydrogen, R² is a divalent, linear or branched hydrocarbon group of 1-10 carbon atoms optionally containing 1 or 2 ether bonds therein and 1 is a value 3-300 and (ii) a radically polymerizable monomer comprising, as major components, an acrylate or methacrylate, or both, the ratio of dimethylpolysiloxane compound (i) to radically polymerizable monomer (ii) ranging from 1;

19-2;

1; and

from 95-30% a low-viscosity silicone oil (B) having a viscosity of less than 50 cs.