Claims
- 1. A hair setting composition for application to human hair to cosmetically set and hold the same for a reasonable period of time and which is readily removable therefrom by shampoo treatment which comprises (A) a film forming copolymer of (1) 10-30% by weight of an alkyl acrylate having a straight or branched chain alkyl group of 2 to less than 8 carbon atoms or mixture thereof, (2) 41-60% by weight of methyl methacrylate, (3) 5-20% by weight of hydroxyethyl methacrylate, and (4) 12-30% methacrylic acid, which copolymer has a calculated glass transition temperature, Tg, within the range of about 40.degree.-80.degree. C., a molecular weight within the range of about 25,000 to 250,000, and not more than about 50 ppm of unreacted alkyl acrylate monomer, and (B) a cosmetically acceptable organic solvent for said film forming copolymer, wherein (A) is dissolved in (B) in an amount of 1 to 15% by weight of the composition with the required amount of organic amine neutralizer to achieve acceptable performance.
- 2. The composition of claim 1 wherein the alkyl acrylate component of the film forming copolymer (A) is n-butyl acrylate.
- 3. The composition of claim 1 wherein the molecular weight range of the copolymer is between 50,000 and 150,000.
- 4. The composition of claim 1 wherein the calculated Tg is within the range of about 45.degree.-75.degree. C.
- 5. The composition of claim 1 wherein the film forming copolymer contains the following components in approximately the indicated proportions by weight:
- ______________________________________butyl acrylate 25%methyl methacrylate 47%hydroxyethyl methacrylate 10%methacrylic acid 18%______________________________________
- 6. The composition of claim 1 wherein the methacrylic acid component of the film forming copolymer comprises about 18% by weight of the copolymer.
- 7. The composition of claim 1 wherein the hydroxyethyl methacrylate component of the film forming copolymer comprises about 10% by weight of the copolymer.
- 8. The composition of claim 5 wherein the film forming copolymer has a molecular weight of about 70,000.
- 9. An aerosol hair spray composition comprising between 30 and 70 weight percent of components A and B of claim 1 and between 70 and 30 weight percent of a spraying agent selected from the group consisting of halogenated hydrocarbons, compressed gases, volatile hydrocarbons and mixtures thereof.
- 10. A water insoluble, shampoo soluble hair setting polymer which comprises (a) 10-30% by weight of an alkyl acrylate having a straight or branched chain alkyl group of 2 to less than 8 carbon atoms or mixtures thereof (b) 41-60% by weight of methyl methacrylate, (c) 5-20% by weight of hydroxyethyl methacrylate and (d) 12-30% by weight of methacrylic acid.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of our prior copending application Ser. No. 706,336, filed July 19, 1976, now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1,406,979 |
Sep 1975 |
GBX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
706336 |
Jul 1976 |
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