Epilatory compositions

• US 20050079189A1
• Filed: 02/12/2003
• Published: 04/14/2005
• Est. Priority Date: 02/13/2002
• Status: Abandoned Application

• Current Assignee: Reckitt Benckiser UK Ltd (Reckitt Benckiser Group PLC)
• Original Assignee: Reckitt Benckiser UK Ltd (Reckitt Benckiser Group PLC)
• Inventors: Acher, David, De La Torre, Frederic
• Application Number:
  US10/502,868
• Publication Number:
  US 20050079189A1
• Time in Patent Office: Days
• US Class Current: 424/401
• CPC Class Codes: A61K 8/60 Sugars; Derivatives thereof
• CPC Class Codes: A61K 8/8111 Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/922 of vegetable origin
• CPC Class Codes: A61Q 9/04 Depilatories

Abstract

An epilatory composition of the adhesive type comprises a gel-like matrix material, for example of a rosin-based or sugar-based material, together with 0.1-5 wt % of a branched polyalkene, for example polyisobutene. The resulting compositions offer skin care benefits whilst maintaining excellent viscoelastic and adhesive properties.

Claims

1. An epilatory composition comprising a matrix material of an adhesive type, wherein the composition includes a branched polyalkene in an amount of up to 5% of the total weight of the composition.

2. An epilatory composition according to claim 1, wherein the polyalkene has pendent C_1-4 alkyl groups on the carbon backbone, the numerical ratio of the pendent alkyl groups to hydrogen atoms on the carbon backbone being in the range 0.1:

1 to 10;

1.

3. An epilatory composition according to claim 1, wherein the branched polyalkene contains units derived from isobutene.

4. An epilatory composition according to claim 3, wherein the branched polyalkene consists of polyisobutene.

5. An epilatory composition according to claim 1, wherein the branched polyalkene provides up to 5% of the total weight of the composition.

6. An epilatory composition according to claim 1, wherein the matrix material comprises a rosinous material and/or a sugar-based material, and provides at least 60% of the weight of the epilatory composition.

7. An epilatory composition according to claim 1, wherein the composition includes a particulate material which supplies 1-40% of the weight of the epilatory composition.

8. An epilatory composition according to claim 7, wherein the particulate material is a siliceous material.

9. An epilatory composition according to claim 1 wherein the composition is of elastic nature when unstressed and of viscous nature when moderately stressed, on application to the skin.

10. An epilatory composition according to claim 9 wherein the composition is of elastic nature when highly stressed, on removal of the composition from the skin.

13. An epilatory product comprising an epilatory composition according to claim 1, the product being selected from:

strips of such a composition sandwiched between sheets which are peelable from the strips; and

a dispenser containing such a composition, having an applicator adapted to deposit a sheet thereof on the skin of a user.

11. An epilatory composition, comprising

at least 60% wt of a sugar-based matrix material;

0-30% wt of a rosin-based matrix material;

0.1-5% wt of a branched polyalkene;

1-20% wt of a particulate material; and

0-40% wt of additional components.

12. An epilatory composition, comprising:

at least 70% wt of a sugar-based matrix material;

2-20% wt of a rosin-based matrix material;

0.5-3% wt of a branched polyalkene;

1-5% wt of a particulate material; and

0-20% wt of additional components.

14. (canceled)