Composite particles, compositions and methods

• US 9,468,589 B2
• Filed: 01/05/2011
• Issued: 10/18/2016
• Est. Priority Date: 01/19/2010
• Status: Active Grant

• Current Assignee: ELC Management LLC (The Estee Lauder Companies Inc.)
• Original Assignee: ELC Management LLC (The Estee Lauder Companies Inc.)
• Inventors: Cohen, Isaac David, Cummins, Phillip, Sojka, Milan Franz, Culhane, David Walter, Fthenakis, Christina G., Oko, Jennifer L., Dreher, John Dudley, Mikhaylova, Yelena
• Primary Examiner(s): Song, Jianfeng
• Application Number:
  US13/520,323
• Publication Number:
  US 20130156830A1
• Time in Patent Office: 2,113 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: A61K 2800/262 Transparent; Translucent
• CPC Class Codes: A61K 2800/31 Anhydrous
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 2800/43 Pigments; Dyes
• CPC Class Codes: A61K 2800/651 The particulate/core comprising inorganic material
• CPC Class Codes: A61K 2800/654 The particulate/core comprising macromolecular material
• CPC Class Codes: A61K 2800/805 Corresponding aspects not provided for by any of codes A61K2800/81 - A61K2800/95
• CPC Class Codes: A61K 8/0241 Containing particulates characterized by their shape and/or structure see also A61K8/04, A61K8/11, and A61K8/14, further aspects are classified in A61K2800/40 and subcodes
• CPC Class Codes: A61K 8/0283 Matrix particles
• CPC Class Codes: A61K 8/18 characterised by the composition
• CPC Class Codes: A61K 8/19 containing inorganic ingredients
• CPC Class Codes: A61K 8/29 Titanium; Compounds thereof
• CPC Class Codes: A61K 8/8147 Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/8152 Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• 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 1/10 for eyes, e.g. eyeliner, mascara
• CPC Class Codes: D06P 5/04 with organic compounds

Abstract

Composite particulates, topical composition containing composite particulates, methods for improving the appearance of skin depth, dimensionality or undertones; a method for improving the ashy, chalky or mask-like appearance of color cosmetic compositions on the skin; and a method for reducing the number of shades in a color cosmetic shade range by formulating the cosmetic with composite particulates.

Claims

1. A color cosmetic composition containing a total colorant component consisting of (a) 30 to 80 parts of composite particulates consisting of a fused agglomerate of 40-60% colorant and 60-40% of a clear or translucent thermoplastic Polymethylmethacrylate (PMMA) having a refractive index ranging from 1.1 to 1.6, a melting point of 50 to 200°

C. and a density ranging from about 0.5 to 5 grams/cm³, and (b) 70 to 30 parts of colorant not in composite particulate form wherein said fused agglomerate is not in the form of a collapsed microsphere, wherein said fused agglomerate is made by the steps of;

(a) solvating the clear or translucent thermoplastic PMMA in the form of solid spheres with a solvent;

(b) combing the solvated mixture of (a) with one or more colorants;

(C) removing the solvent to form a fused agglomerate.

2. The composition of claim 1 wherein the colorant in the composite particulate is a powder, or a pigment that is an organic pigment, an inorganic pigment, or mixtures thereof.

3. The composition of claim 2 wherein the organic pigment in the composite particulate is a D&

C color, FD&

C color, or Lake thereof and the inorganic pigment is one or more iron oxides, titanium dioxide, or zinc oxide.

4. The composition of claim 1 wherein the colorant in the composite particulate is a white or non-colored particulate.

5. An emulsion foundation makeup containing the color composition of claim 1.

6. The composition of claim 1 wherein the composite particulates are coated with an ingredient selected from silicone elastomers, silicone resins, silicone gums, synthetic waxes, natural waxes, and mixtures thereof.

7. The composition of claim 1 wherein the composite particulate is coated with dimethicone silylate.

8. The composition of claim 5 which is in the water in oil emulsion form and further comprises cyclopentasiloxane, dimethicone, dimethicone crosspolymer, and PEG-10 crosspolymer.