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US3862306A Expired / Lapsed US ⏱️ 0.0 years remaining

Hair spray containing esters of maleic anhydride interpolymers

Assignee: Gillette Co LLC
•
Filing: 1972-05-08
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Granted: 1975-01-21
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Expires: 1992-05-08
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Abstract

Abstract Water-insoluble alkyl half ester interpolymers and waterinsoluble ammonium and amine salts thereof, and hair spray compositions made therefrom; said interpolymers consisting essentially of the structural units: OBTAINED BY INTERPOLYMERIZING MALEIC ANHYDRIDE WITH TWO DIFFERENT ALKYL VINYL ETHERS, R1-O-CH Ch2 and R2-O-CH CH2, followed by partial esterification with an alkanol having 1 to 8 carbon atoms. The esterification can be followed by neutralization of free carboxyl groups with ammonia, a primary, secondary, or tertiary alkylamine, alkanolamine, or alkylalkanolamine of the formula WHERE Z1, Z2, and Z3 are all hydrogen to make up ammonia, where Z1, Z2, and Z3 are individually selected from the group consisting of hydrogen and of alkyl radicals, having 1 to 18 carbon atoms to make up the alkylamine, where Z1, Z2, and Z3 are individually selected from the group consisting of hydrogen and of hydroxyethyl and hydroxypropyl radicals to make up the alkanolamine, or where Z1, Z2, and Z3 are mixtures of alkyl and hydroxyalkyl groups as described to make up the alkylalkanolamine, to give the ammonium or amine salts of the interpolymers. R1 Alkyl radical, 8 to 18 carbon atoms; R2 Alkyl radical, 1 to 3 carbon atoms; X and Y are individually selected from the group consisting of (1) alkoxy, 1 to 8 carbons atoms, and (2) hydroxy. The ammonium or amine salts of the foregoing compounds (when X or Y represents a hydroxy radical) are salts of ammonia or of those amines described above.

Inventors

  • 👤 Ira Jordan Block
  • 👤 Phillip Edward Sokol

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 10:58
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8164; A61Q; A61Q5/00; A61Q5/06

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 48 words
A hair spray composition as claimed in claim 1 in which from about 5 to 50 percent of the free carboxyl groups of said interpolymer have been neutralized by a member of the group consisting of ammonia, primary, secondary, and tertiary alkylamines, alkanolamines and alkylalkanolamines of the formula
Claim 2
Dependent Claim 29 words
A hair spray composition as claimed in claim 1 in which said alkanol is ethyl alcohol, wherein R1 is stearyl, R2 is ethyl and said alkoxy radical is ethoxy.
Claim 3
Dependent Claim 47 words
A hair spray composItion as claimed in claim 3 wherein from about 10 to 20 percent of the free carboxyl groups of said interpolymer have been neutralized by a member of the group consisting of ammonia, primary, secondary, and tertiary alkylamines, alkanolamines and alkylalkanolamines of the formula
Claim 4
Dependent Claim 22 words
A package comprising a closed container with a valve-controlled outlet holding a composition as defined in claim 1 together with a propellant.
Claim 5
Dependent Claim 22 words
A package comprising a closed container with a valve-controlled outlet holding a composition as defined in claim 2 together with a propellant.
Claim 6
Dependent Claim 22 words
A package comprising a closed container with a valve-controlled outlet holding a composition as defined in claim 3 together with a propellant.
Claim 7
Dependent Claim 22 words
A package comprising a closed container with a valve-controlled outlet holding a composition as defined in claim 4 together with a propellant.
Claim 8
Dependent Claim 34 words
A package as defined in claim 7 in which said composition includes isopropyl stearate in an amount from about 0.05 to about 20 percent of the weight of the interpolymer used in said package.
Claim 9
Dependent Claim 34 words
A package as defined in claim 8 in which said composition includes isopropyl stearate in an amount from about 0.05 to about 20 percent of the weight of the interpolymer used in said package.
Claim 10
Dependent Claim 139 words
A hair spray composition comprising an ethyl alcohol solution containing from about 0.05 to about 20 percent by weight of a water-insoluble partial ester of an interpolymer of equimolar amounts of maleic anhydride and a mixture of from 2 to 75 percent by weight of stearyl vinyl ether and from 25 to 98 percent by weight of ethyl vinyl ether based on the total weight of the ether mixture, in which interpolymer from 40 to 60 percent of the total carboxyl groups present in said modified interpolymer are reacted with ethyl alcohol to form said ester; said interpolymer having a Brookfield viscosity from about 200 cps. to 3,000 cps. using a No. 2 spindle at 25*C. and at 30 percent concentration in ethanol with a 250 cc. beaker, the percentage being based on the weight of the total solution.
Claim 11
Dependent Claim 45 words
A hair spray composition as defined in claim 11 wherein from about 10 to 20 percent of the free carboxyl groups have further been reacted with a member of the group consisting of ammonia, primary, secondary, and tertiary alkylamines, alkanolamines and alkylalkanolamines of the formula
Claim 12
Dependent Claim 59 words
A package comprising a pressure-tight container having a valve-controlled outlet and containing a hair-setting composition comprising: a. about 35.5 to about 65 weight percent, basEd on the total weight of the composition, of the solution defined in claim 11, and b. about 35 to about 64.5 weight percent, based on the total weight of the composition, of a propellant.
Claim 13
Dependent Claim 27 words
A package as defined in claim 13 including from about 0.05 to about 3 weight percent, based on the total weight of the composition of isopropyl stearate.
Claim 14
Dependent Claim 59 words
A package comprising a pressure-tight container having a valve-controlled outlet and containing a hair-setting composition comprising: a. about 35.5 to about 65 weight percent, based on the total weight of the composition, of the solution defined in claim 12, and b. about 35 to about 64.5 weight percent, based on the total weight of the composition, of a propellant.
Claim 15
Dependent Claim 27 words
A package as defined in claim 15 including from about 0.05 to about 3 weight percent, based on the total weight of the composition of isopropyl stearate.

References Cited (Backward Citations)

US3177119A Cited
US3395041A Cited
US3436378A Cited
US3684777A Cited
US3684776A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-20 1978-07-22 1979-01-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-20 1982-07-22 1983-01-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-20 1986-07-22 1987-01-21 $7700.00 Window Closed / Lapsed

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