Cosmetic compositions

• US 6,106,820 A
• Filed: 11/05/1998
• Issued: 08/22/2000
• Est. Priority Date: 05/12/1997
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Nijakowski, Timothy Roy, Morrissey, Christopher Todd, Smith, Edward Dewey III, Midha, Sanjeev
• Primary Examiner(s): Michl, Paul R.
• Application Number:
  US09/186,541
• Time in Patent Office: 656 Days
• Field of Search: 424/78.17, 424/78.18, 525/288, 525/301
• US Class Current: 424/78.18
• CPC Class Codes: A61K 8/91 Graft copolymers A61K8/89 takes precedence
• CPC Class Codes: A61Q 1/06 Lipsticks
• CPC Class Codes: A61Q 1/10 for eyes, e.g. eyeliner, mascara
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/08 Anti-ageing preparations
• CPC Class Codes: A61Q 3/02 Nail coatings

Abstract

Disclosed are cosmetic compositions comprising:

(a) from about 0.1% to about 50%, based on the weight of the composition, of a film-forming graft copolymer, wherein the copolymer comprises:

(i) a backbone exhibiting a T_g of from about 0° C. to about 50° C.; and

(ii) one or more hydrophilic grafts attached to the backbone wherein each of the grafts exhibits a T_g of from about 50° C. to about 200° C., and

wherein the average molecular weight of each of the grafts is greater than about 1000; and

(b) from about 50% to about 99.9%, based on the weight of the composition, of a suitable carrier.

The compositions provide good wear properties and are suitable for use in a variety of cosmetic applications, such as facial moisturizers, foundations, lipsticks, mascaras, nail polishes and the like. In a preferred embodiment, the compositions are in the form of a nail polish which, when applied to nails, exhibit excellent long wear properties.

Claims

1. A method of coating nails with a nail polish film comprising the steps of:

(i) applying a nail polish composition to the nail, wherein the nail polish composition comprises;

(a) from about 1% to about 40%, based on the weight of the composition, of a film-forming graft copolymer, wherein the copolymer comprises;

(I) a backbone exhibiting a T_g of from about 0°

C. to about 50°

C., and

(II) one or more hydrophilic grafts attached to the backbone wherein each of the grafts exhibits a T_g of from about 50°

C. to about 200°

C., and wherein the average molecular weight of each of the grafts is greater than about 1000; and

(b) from about 60% to about 99%, based on the weight of the composition, of a carrier suitable for application to the nails, wherein the carrier comprises from about 10% to about 98%, based on the weight of the composition, of a volatile liquid organic diluent; and

(ii) substantially drying the composition applied to the nail to form a nail polish film.

2. The method of claim 1 wherein the composition is applied contiguously to the nail.

3. A method of coating nails with a nail polish film comprising the steps of:

(i) applying a basecoat composition contiguously to the nail, wherein the basecoat composition comprises a film-forming polymer and a liquid diluent;

(ii) substantially drying the basecoat composition applied to the nail to form a basecoat layer;

(iii) then optionally applying a midcoat composition to the nail, wherein the midcoat composition comprises a film-forming polymer and a liquid diluent; and

(iv) substantially drying the midcoat composition applied to the nail to form a midcoat layer;

(v) then applying a topcoat composition to the nail, wherein the topcoat composition comprises;

(a) from about 1% to about 40%, based on the weight of the composition, of a film-forming graft copolymer, wherein the copolymer comprises;

(I) a backbone exhibiting a T_g of from about 0°

C. to about 50°

C.; and

(II) one or more hydrophilic grafts attached to the backbone wherein each of the grafts exhibits a T_g of from about 50°

C. to about 200°

C., and wherein the average molecular weight of each of the grafts is greater than about 1000; and

(b) from about 60% to about 99%, based on the weight of the composition, of a carrier suitable for application to the nails, wherein the carrier comprises from about 10% to about 98%, based on the weight of the composition, of a volatile liquid organic diluent; and

(vi) substantially drying the topcoat composition applied to the nail to form a topcoat layer.