Patent US5458871A successfully refreshed from Google Patents.
US5458871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
0% VOC, single phase hair spray composition
Assignee: ISP Investments LLC
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Filing: 1994-08-23
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Granted: 1995-10-17
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Expires: 2014-08-23
Abstract
Abstract A 0% VOC, single phase hair spray composition of a water-insoluble polymer wherein substantially all the particles therein have a diameter of less than 1 micron, i.e. a microemulsion.
Inventors
- 👤 Edward G. Malawer
- 👤 Kolazi S. Narayanan
- 👤 James Cullen
- 👤 Colleen M. Rocafort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:53
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/06; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/068; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/72; A61K8/81; A61K8/8164; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
123 words
A 0% volatile organic compound, single phase hair spray composition in which substantially all the particles therein have a diameter of less than 1 micron, comprising, by weight of the composition, (a) a polymer which is the half-ester of a copolymer of maleic anhydride and methyl vinyl ether in an amount of 0.5%-10%, optionally neutralized up to 33 mole % of the polymer, (b) a surfactant which is a polyethoxylated glycol ether of glyceryl isostearate or monoleate having an HLB of greater than 10, in an amount of 0.2-10%, and (c) water to 100%, and, optionally (d) a non-volatile organic compound cosolvent which is propylene glycol to solubilize said polymer when present in higher amounts of said range in an amount of 0-20%.
Claim 2
Dependent Claim
123 words
A 0% volatile organic compound, single phase hair spray composition in which substantially all the particles therein have a diameter of less than 1 micron, comprising, by weight of the composition, (a) a polymer which is the half-ester of a copolymer of maleic anhydride and methyl vinyl ether in an amount of 0.5%-10%, optionally neutralized up to 33 mole % of the polymer, (b) a surfactant which is a polyethoxylated glycol ether of glyceryl isostearate or monoleate having an HLB of greater than 10, in an amount of 0.2-10%, and (c) water to 100%, and, optionally (d) a non-volatile organic compound cosolvent which is propylene glycol to solubilize said polymer when present in higher amounts of said range in an amount of 0-20%.
Claim 3
Dependent Claim
32 words
A 0% volatile organic compound, single phase hair spray composition according to claim 1 wherein (a) is 2-5%, and 5-20 mole %, (b) is 2-10%, (c) is 75-90%, and (d) is 0-15%.
Claim 4
Dependent Claim
23 words
A 0% volatile organic compound, single phase hair spray composition according to claim 1 wherein the particle size is 0.1 micron or less.
Claim 5
Dependent Claim
10 words
A composition according to claim 1 which is a microemulsion.
Claim 6
Dependent Claim
13 words
A composition according to claim 1 wherein (b) has an HLB of 12-18.
Claim 7
Dependent Claim
21 words
A composition according to claim 1 wherein (a) is 5-10%, and (d) is present in an amount of up to 10%.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-16 | 1999-04-17 | 1999-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-16 | 2003-04-17 | 2003-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-16 | 2007-04-17 | 2007-10-17 | $7700.00 | Window Closed / Lapsed |