Cosmetic containing fine soft microcapsules

• US 5,089,269 A
• Filed: 05/27/1988
• Issued: 02/18/1992
• Est. Priority Date: 11/07/1987
• Status: Expired due to Term

• Current Assignee: Shiseido Company Limited
• Original Assignee: Shiseido Company Limited
• Inventors: Noda, Akira, Yamaguchi, Michihiro, Aizawa, Masanori, Kumano, Yoshimaru
• Primary Examiner(s): Page, Thurman K.
• Assistant Examiner(s): Hulina, Amy L.
• Application Number:
  US07/199,977
• Time in Patent Office: 1,362 Days
• Field of Search: 424/496, 424/497, 424/63, 424/455, 424/456, 424/70, 424/492, 424/401, 514/844, 514/846, 514/847, 514/944, 252/174.13
• US Class Current: 424/456
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 8/11 Encapsulated compositions
• CPC Class Codes: A61K 8/65 Collagen; Gelatin; Keratin; Derivatives or degradation products thereof
• CPC Class Codes: A61K 8/671 Vitamin A; Derivatives thereof, e.g. ester of vitamin A acid, ester of retinol, retinol, retinal
• CPC Class Codes: A61K 8/676 Ascorbic acid, i.e. vitamin C
• 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 1/08 for cheeks, e.g. rouge
• 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: A61Q 5/02 Preparations for cleaning the hair

Abstract

A cosmetic composition on an external treatment agent containing microcapsules, with an average particle size of 0.1 to 2000 μm, enclosing a hydrophobic component, wherein the microcapsules are composed of a gelatin film swollen with water.

Claims

1. A basic make-up or hair cosmetic composition comprising microcapsules with an average particle size of 50 to 1000 μ

m composed of a gelatin film swollen with water enclosing a hydrophobic cosmetic component therein, wherein a mixture of a liquid oil component and a solid oil component or a semi-solid oil component is used as the hydrophobic component, and microcapsules with a breaking strength of 10 to 300 g/cm² are formulated, wherein said liquid oil component has a melting point below room temperature and is at least one member selected from the group consisting of animal and vegetable oils, hydrocarbon oils, ester oils, silicone oils, higher fatty acids, higher alcohols, sunscreening agents, vitamins, alpha lipoic acid, ferulic acid, and flavors and said solid or semi-solid oil component is at least one member selected from the group consisting of animal and vegetable oils, hydrocarbon oils, ester oils, higher fatty acids, higher alcohols, waxes, sunscreening agents and flavors.

2. A basic make-up or hair cosmetic composition comprising microcapsules with an average particle size of 50 to 1000 μ

m composed of a gelatin film swollen with water enclosing a hydrophobic cosmetic component therein, wherein a mixture of a liquid oil component and a solid oil component or a semi-solid oil component is used as the hydrophobic component, and microcapsules with a breaking strength of 10 to 300 g/cm² are formulated, wherein said liquid oil component is at least one member selected from the group consisting of animal and vegetable oils, hydrocarbon oils, ester oils, silicone oils, higher fatty acids, higher alcohols, sunscreening agents, vitamins, alpha lipoic acid, ferulic acid, and flavors and said solid or semi-solid oil component is at least one member selected from the group consisting of animal and vegetable oils, hydrocarbon oils, ester oils, higher fatty acids, higher alcohols, waxes, sunscreening agents and flavors, the solid or semi-solid oil having a melting point above room temperature and being dissolved or dispersed in the liquid oil component.