METHOD FOR DERIVATIZING HAIR WITH A REACTIVE POLYETHYLENE GLYCOL

• US 20100004391A1
• Filed: 11/14/2007
• Published: 01/07/2010
• Est. Priority Date: 11/17/2006
• Status: Abandoned Application

• Current Assignee: Conopco, Inc. (Unilever PLC)
• Original Assignee: Conopco, Inc. (Unilever PLC)
• Inventors: Nicolas, Julien, Haddleton, David Mark, Khoshdel, Ezat
• Application Number:
  US12/515,016
• Publication Number:
  US 20100004391A1
• Time in Patent Office: Days
• US Class Current: 525/54.1
• CPC Class Codes: A61K 2800/94 Involves covalent bonding to the substrate
• CPC Class Codes: A61K 8/91 Graft copolymers A61K8/89 takes precedence
• CPC Class Codes: A61Q 5/00 Preparations for care of the hair
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/06 Preparations for styling the hair, e.g. by temporary shaping or colouring
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners

Abstract

A method of protecting hair by covalently bonding to the hair a polymeric compound comprising polyethylene glycol.

Claims

1. A method of protecting hair by covalently bonding to the hair a polymeric compound comprising polyethylene glycol.

2. A method according to claim 1 wherein the polymeric compound comprises at least one polymeric segment of polyethylene glycol covalently attached to a central backbone.

3. A method according to claim 1 in which the central backbone comprises a acrylate, methacrylate group or mixtures thereof.

4. A method according to claim 1 in which the molecular weight Mw of the polyethylene glycol or polyethylene glycol segment is from 5,000 to 60,000.

5. A method according to claim 3 in which the number of acrylate, methacrylate groups within the central back bone is from 2 to 10.

6. Use of an reactive derivative of polyethylene glycol for derivatising hair

7. Use according to claim 6 in which the reactive derivative is selected from acrylated polyethylene glycol reactive or methacrylated polyethylene polyethylene glycol or mixtures thereof.

8. Use according to claim 6 in which the reactive group of the reactive derivative of polyethylene glycol is selected from the group consisting of is α

-aldehyde, α

-maleimide, α

-N-hydroxy succinimide, or α

-azlactone.

9. Use according to claim 8 in which the reactive group is α

-N-hydroxy succinimide

10. A hair fibre covalently bonded to a polymeric compound comprising polyethylene glycol.

11. A hair fibre according to claim 10 in which the polymeric compound comprising polyethylene glycol. Is acrylated polyethylene glycol or a methacrylated polyethylene glycol or mixtures thereof.