Hair styling composition and method

• US 5,656,265 A
• Filed: 06/06/1995
• Issued: 08/12/1997
• Est. Priority Date: 08/05/1994
• Status: Expired due to Fees

• Current Assignee: Chesebrough-Pond'S Usa Co., Division Of Conopco, Inc.
• Original Assignee: Chesebrough-Pond'S Usa Co., Division Of Conopco, Inc.
• Inventors: Polywka, Robert, Gough, Anthony David, Khoshdel, Ezat, Bailey, Peter Lawrence
• Primary Examiner(s): LANE, SALLY GARDNER
• Application Number:
  US08/469,325
• Time in Patent Office: 798 Days
• Field of Search: 424/70.1, 424/70.11, 424/70.5, 132/202, 132/203
• US Class Current: 424/70.1
• CPC Class Codes: A61K 2800/94 Involves covalent bonding to the substrate
• CPC Class Codes: A61K 8/49 containing heterocyclic compounds
• 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
• CPC Class Codes: C07D 263/42 attached in position 5
• CPC Class Codes: C07D 265/06 not condensed with other rings

Abstract

A hair styling and conditioning process comprising the steps of: contacting the hair with a compound having an electrophilic group and at least one hydrophobic group whereby the electrophilic group reacts with nucleophilic sites in and on the hair to give the hair a plurality of hydrophobic groups at the surface, in which the hydrophobic group is selected from the group consisting of C_10-30 and C_10-30 alkenyl groups. Preferably the electrophilic group is azlactone.

Also a reversible hair styling process in which the hydrophobic group is selected from the group consisting of C_1-30 alkyl, C_2-30 alkenyl, phenyl, diphenyl, other aromatics, and fluoroalkanes, and the electrophilic group is selected from the group consisting of azlactone, sulphide from disulphide, sulphide from thiosulphonate, vinyl zulphone, vinyl sulphoximines, banzoxazinones and isocyanates.

Novel azlactones, including pentadecyl and hexyl azlactone.

Claims

1. A hair styling and conditioning process comprising the steps of:

contacting the hair with a compound having an electrophilic group and at least one hydrophobic group whereby the electrophilic group reacts with nucleophilic sites in and on the hair to give the hair a plurality of hydrophobic groups at a surface of the hair, in which the compound is an azlactone of formula;

##STR4## wherein R¹ and R² are the same or different and each is indepandently selected from the group consisting of H and C_1-4 alkyl groups, and Y is selected from the group consisting of C_10-30 alkyl and C_10-30 alkenyl groups.

2. The process of claim 1 in which Y is C₁₁ -C₁₆ alkyl.

3. The process of claim 1 in which the compound is pentadecyl azlactone.

4. The process of claim 1 in which the hair is contacted with a reducing agent before it is treated with the electrophilic group.

5. The process of claim 4 in which the reducing agent is thioglycollate.

6. The process of claim 1 in which styled hair is restyled by contacting the styled hair a liquid containing hydrophillic and hydrophobic groups, then setting the hair.

7. The process of claim 6 in which the liquid contains alcohol.