EP0590604A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Hairsprays and acrylic polymer compositions for use therein
Assignee: Amerchol Corp
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Filing: 1993-09-28
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Granted: —
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Expires: 2013-09-28
Abstract
Abstract Aqueous, anionic, acrylic polymer compositions comprising a copolymer of an alkyl acrylate, an alkyl methacrylate and one or more acrylate acids or salts thereof are disclosed. By controlling the particle size of the copolymer and introducing a surfactant, enhanced freeze-thaw stability can be obtained with the polymer compositions of the present invention. The polymer compositions are compatible in all-aqueous hairspray compositions, as well as those which contain up to about 80 weight percent volatile organic compounds, or more.
Inventors
- 👤 James Charles Hatfield
- 👤 Steven Ives Cochran
- 👤 David Robinson Bassett
- 👤 Raymond Rigoletto, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 19:04
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/046; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; A61Q; A61Q5/00; A61Q5/06; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; A61K2800/54; A61K2800/542; A61K2800/5424; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02; Y10S526/00; Y10S526/909; Y10S526/936
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
An aqueous, anionic polymer composition comprising: (1) a copolymer of (a) about 35 to 74 weight percent of an alkyl acrylate wherein the alkyl group contains from 1 to 5 carbon atoms; (b) about 25 to 65 weight percent of an alkyl methacrylate wherein the alkyl group contains from 1 to 5 carbon atoms; and (c) about 1 to 15 weight percent of one or more acrylate acids or salts thereof having from 3 to 5 carbon atoms, wherein said copolymer has (i) a glass transition temperature onset of from about 10 to 50°C; (ii) a number average molecular weight of from about 10,000 to 50,000 g/gmole; (iii) a particle size of from about 0.1 to 1 micron; (2) at least about 0.05 weight percent of a surfactant; and (3) water; wherein said composition has a residual level of said alkyl acrylate of less than 100 ppmw and a Freeze-Thaw Stability Factor of at least 3.
Claim 2
Dependent Claim
21 words
The composition of claim 1 wherein the surfactant is present in an amount of from about 0.05 to 0.5 weight percent.
Claim 3
Dependent Claim
12 words
The composition of claim 1 or 2 wherein the surfactant is nonionic.
Claim 4
Dependent Claim
12 words
The composition of claim 3 wherein the surfactant is an alkoxylated phenol.
Claim 5
Dependent Claim
61 words
The composition of claim 1 comprising from about 50 to 60 weight percent ethyl acrylate, from about 30 to 40 weight percent methyl methacrylate, from about 2 to 10 weight percent acrylic acid and from about 2 to 10 weight percent methacrylic acid, provided that the total concentration of acrylic acid and methacrylic acid does not exceed about 15 weight percent.
Claim 6
Dependent Claim
80 words
A hairspray composition comprising: (1) from about 1 to 25 weight percent of the copolymer composition of claim 1; (2) at least about 0.05 weight percent of a surfactant; and (3) a carrier comprising water and up to about 80 weight percent of a volatile organic compound selected from the group consisting of alcohols having from 1 to 4 carbon atoms, alkanes having from 1 to 4 carbon atoms, ethers having from 2 to 6 carbon atoms, or mixtures thereof.
Claim 7
Dependent Claim
16 words
The composition of claim 6 which contains up to about 55 weight percent volatile organic compounds.
Claim 8
Dependent Claim
21 words
The composition of claim 7 wherein the volatile organic compounds are selected from ethanol, isopropyl alcohol, dimethyl ether and mixtures thereof.
Claim 9
Dependent Claim
16 words
The composition of claim 8 which comprises from about 25 to 55 weight percent dimethyl ether.
Claim 10
Dependent Claim
13 words
The composition of claim 6 which is substantially free of volatile organic compounds.
References Cited (Backward Citations)
EP0379082A2
Cited
WO1992003498A2
Cited
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