US3821116A - Aerosol shaving lather containing an oxazoline homopolymer - Google Patents

Aerosol shaving lather containing an oxazoline homopolymer Download PDF

Info

Publication number
US3821116A
US3821116A US00247544A US24754472A US3821116A US 3821116 A US3821116 A US 3821116A US 00247544 A US00247544 A US 00247544A US 24754472 A US24754472 A US 24754472A US 3821116 A US3821116 A US 3821116A
Authority
US
United States
Prior art keywords
oxazoline
percent
bis
lather
hydroxymethyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00247544A
Inventor
R White
R Deanin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IMC Chemical Group Inc
Commercial Solvents Corp
Original Assignee
Commercial Solvents Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commercial Solvents Corp filed Critical Commercial Solvents Corp
Priority to US00247544A priority Critical patent/US3821116A/en
Application granted granted Critical
Publication of US3821116A publication Critical patent/US3821116A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q9/00—Preparations for removing hair or for aiding hair removal
    • A61Q9/02—Shaving preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/046—Aerosols; Foams
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/817—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/01—Wetting, emulsifying, dispersing, or stabilizing agents

Definitions

  • This invention relates to an improved shaving lather.
  • this invention relates to aerosoldispensed shaving lather having improved foam stability.
  • Aerosol shaving creams consist essentially of a soap solution released from a pressurized can in a foamy state for spreading on the shavers face with fingers or brush.
  • the soap is generally a combination of triethanolamine, stearic acid and stripped coconut fatty acid, at a concentration of about 7 percent to 12 percent, with a free fatty acid range of about 1 percent to 3 percent.
  • the ratio of stearic acid to coconut oil fatty'acid ranges from 70/30 to 90/10.
  • Fluorinated hydrocarbons are usually a blend of dichlorodifluoromethane (Propellant 12) with dichlorofluoroethane (Propellant 1 14) in a weight ratio of 40/60 or 57/43. They are used at a level of about 6 percent to 10 percent in the formulation.
  • Liquefied petroleum hydrocarbons are usually mol blends of about 87 percent isobutane and 13% propane that are used at a level of 3 percent to 7 percent.
  • a humectant to hold moisture on the face and prevent drying out of the lather during the shave, is particularly important in aerosol creams. Also important are foam stabilizers which tend to prevent collapse of the foam during the shaving period.
  • R is hydrogen, methyl or ethyl when incorporated in aerosol-dispersed shaving lathers improves the foam stability and provides a-lather having smaller gas bubbles whereby a creamier, smoother shaving lather is obtained.
  • the homopolymers useful in the practice of the present invention are known in the art.
  • the monomer can US. Pat. No. 3,248,397 which is incorporated herein by reference thereto.
  • the monomer polymerizes readily by standing at room temperature, by heating, or by heating in the presence of a polymerization catalyst, many of which are known.
  • the amount of polymer used is within from about 0.1 to about 1.0 percent of the soap solution, preferably about 0.2 to about 0.5 percent. Conveniently the polymer is employed as an aqueous solution.
  • water-soluble as used herein is not intended to limit the invention to the fonnation of true solutions. It is also intended to include homopolymers which form colloidol solutions and dispersions.
  • the shaving lathers used in the practice of this invention are those based principally on fatty acid soaps, e. g. alkanolamine, sodium, or potassium soaps of lauric, myristic, palmitic', oleic or stearic acids.
  • Other foaming agents can also be present, e.g. salts of alkyl aryl sulfonates or salts of sulfated alcohol, e.g. sodium lauryl sulfate. l
  • the invention will be better understood with reference to the following examples. It is understood, however, that the examples are intended for illustration only and it is not intended that the invention be limited thereby.
  • EXAMPLE I 4,4-Bis(hydroxymethyl)-2-isopropenyl-2-oxazoline, 100 g, was dissolved in 400g of tetrahydrofuran in the presence of 0.7 g of tert.-butyl peroxy pivalate and 2 g of triethanolamine. The mixture was agitated for twenty hours at 60C during which time high molecular weight polymer precipitated from solution. It was filtered, washed by extraction with a solution of parts methanol and 20 parts tetrahydrofuran. The polymer was dried at reduced pressure. It had a softening point at l00-l 40C and was water-soluble. The dry polymer was hygroscopic. It absorbed 7 9 percent by wt of water at 50 percent relative humidity; 2 l-24 percent at 76 percent humidity; and 40-47 percent at percent humidity.
  • a shaving soap ' was prepared from the following ingredients:
  • the mixture was charged into cans fitted with 20 mm valves, 0.070 stems, and 0.080 bodies.
  • the mixture dispensed foam satisfactorily, the 4,4- bis(hydroxymethyl)-2-isopropenyl-2-oxazoline homopolymer gave a somewhat finer foam, and a noticeably cooler, slightly closer shave with a safety razor.
  • Arluccl 60 is the trademark of Atlas Powder Co. for sorbitan monostearate.
  • Tween 60 is Atlas trademark for polyoxyethylenc 20 sorbitan monostcarate.
  • the mixture is packaged as before. It produces a rich, moist lather of excellent stability.
  • Example 5 The experiment of Example 1 is repeated in all essential details except that 4,4-bis(hydroxymethyl)-2- isobutenyl)-2-oxazoline is substituted by 4,4- bis(hydroxy-methyl)-2 isopropenyl-2-oxazoline. A moist, stable foam is obtained.
  • An aerosol-dispensedshaving lather consisting es sentially of an aqueous solution of from about 1 l.5-l3.75 percent soap and from about 0.1 to about 1.0 percent of the homopolymer of an oxazoline corresponding to the formula where R is hydrogen, methyl or ethyl and an effective amount of a propellant.
  • composition of claim 1 wherein said oxazoline is 4,4-bis(hydroxymethyl)-2-isopropenyl-2-oxazoline.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Dermatology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Cosmetics (AREA)

Abstract

Aerosol shaving lather incorporating therein a small amount of a water-soluble homopolymer of 4,4-bis(hydroxymethyl)-2-alkenyl-2oxazoline is disclosed.

Description

, 1ates atent AEROSOL SHAVING LATHER CONTAINING AN OXAZOLINE HOMOPOLYMER Inventors: Roy A. White, Somers, Conn;
Rudolph D. Deanin, Westford, Mass.
Assignee: Commercial Solvents Corporation,
Terre Haute, Ind.
Filed: Apr. 26, 1972 Appl. N0.: 247,544
US. Cl 252/90, 252/DIG. 2, 252/117, 252/132, 252/307, 252/351, 424/47, 424/73,
Int. .Cl Cl ld 17/00 8]" Field of Search 424/47 73; 260/307 F,
260/883 R; 252/117, 132, 351, 90, DIG. 2, 307, 309
References Cited UNITED STATES PATENTS H1961 Reed ..424/73x FOREIGN PATENTS OR APPLICATIONS 719,647 12/1954 Great Britain ..424/73 675,664 12/1963 Canada "424/73 Primary Examiner-Albert T. Meyers Assistant ExaminerVera C. Clarke Attorney, Agent, or Firml-Iow ard E. Post; Robert H. Dewey [57] ABSTRACT Aerosol shaving lather incorporating therein a small amount of a water-soluble homopolymer of 4,4- bis(hydroxymethyl)-2-alkenyl-2-oxazoline is disclosed.
5 Claims, N0 Drawings AEROSOL SHAVING LATI-IER CONTAINING AN OXAZOLINE HOMOPOLYMER BACKGROUND OF THE INVENTION This invention relates to an improved shaving lather. In a particular aspect this invention relates to aerosoldispensed shaving lather having improved foam stability.
Aerosol shaving creams consist essentially of a soap solution released from a pressurized can in a foamy state for spreading on the shavers face with fingers or brush.
The soap is generally a combination of triethanolamine, stearic acid and stripped coconut fatty acid, at a concentration of about 7 percent to 12 percent, with a free fatty acid range of about 1 percent to 3 percent. The ratio of stearic acid to coconut oil fatty'acid ranges from 70/30 to 90/10.
Either a fluorinated hydrocarbon or a liquefied petroleum hydrocarbon is used as the propellant. Fluorinated hydrocarbons are usually a blend of dichlorodifluoromethane (Propellant 12) with dichlorofluoroethane (Propellant 1 14) in a weight ratio of 40/60 or 57/43. They are used at a level of about 6 percent to 10 percent in the formulation. Liquefied petroleum hydrocarbons are usually mol blends of about 87 percent isobutane and 13% propane that are used at a level of 3 percent to 7 percent.
A humectant, to hold moisture on the face and prevent drying out of the lather during the shave, is particularly important in aerosol creams. Also important are foam stabilizers which tend to prevent collapse of the foam during the shaving period.
Products of this type are well known. They are disclosed, e.g. in U.S. Pat. No. 2,655,480 issued to Spitzer et al.
SUMMARY OF THE INVENTION where R is hydrogen, methyl or ethyl when incorporated in aerosol-dispersed shaving lathers improves the foam stability and provides a-lather having smaller gas bubbles whereby a creamier, smoother shaving lather is obtained.
DETAILED DISCUSSION The homopolymers useful in the practice of the present invention are known in the art. The monomer can US. Pat. No. 3,248,397 which is incorporated herein by reference thereto. The monomer polymerizes readily by standing at room temperature, by heating, or by heating in the presence of a polymerization catalyst, many of which are known.
The amount of polymer used is within from about 0.1 to about 1.0 percent of the soap solution, preferably about 0.2 to about 0.5 percent. Conveniently the polymer is employed as an aqueous solution. The term water-soluble as used herein is not intended to limit the invention to the fonnation of true solutions. It is also intended to include homopolymers which form colloidol solutions and dispersions.
The shaving lathers used in the practice of this invention are those based principally on fatty acid soaps, e. g. alkanolamine, sodium, or potassium soaps of lauric, myristic, palmitic', oleic or stearic acids. Other foaming agents can also be present, e.g. salts of alkyl aryl sulfonates or salts of sulfated alcohol, e.g. sodium lauryl sulfate. l The invention will be better understood with reference to the following examples. It is understood, however, that the examples are intended for illustration only and it is not intended that the invention be limited thereby.
EXAMPLE I 4,4-Bis(hydroxymethyl)-2-isopropenyl-2-oxazoline, 100 g, was dissolved in 400g of tetrahydrofuran in the presence of 0.7 g of tert.-butyl peroxy pivalate and 2 g of triethanolamine. The mixture was agitated for twenty hours at 60C during which time high molecular weight polymer precipitated from solution. It was filtered, washed by extraction with a solution of parts methanol and 20 parts tetrahydrofuran. The polymer was dried at reduced pressure. It had a softening point at l00-l 40C and was water-soluble. The dry polymer was hygroscopic. It absorbed 7 9 percent by wt of water at 50 percent relative humidity; 2 l-24 percent at 76 percent humidity; and 40-47 percent at percent humidity.
A shaving soap 'was prepared from the following ingredients:
Stearic Acid Lauric Acid Cetyl Alcohol Petroleum Jelly Sorbitol Triethanolamine Potassium Hydroxide Water The triethanolamine and potassium hydroxide were dissolved in part of the water. The mixture was heated to 70C and the other ingredients were added with stirring. The mixture was heated until all ingredients had melted and blended and was then cooled and diluted with stirring until all of the water was added. The ste aric acid, lauric acid, triethanolamine and potassium hydroxide constitute the soap portion of the above formula. Their combined weight is about 12.38 g of a total of about 90 g, thus constituting about 13.75 percent of the total solution.
An aerosol was prepared from the above soap solution according to the following formula:
Soap Solution 90 g Water containing 0.24 g polymer l Freon l2 (dichlorodifluoromethane) 6 Freon l 14 (dichlorofluoromethane) 4 The mixture was charged into cans fitted with 20 mm valves, 0.070 stems, and 0.080 bodies. The mixture dispensed foam satisfactorily, the 4,4- bis(hydroxymethyl)-2-isopropenyl-2-oxazoline homopolymer gave a somewhat finer foam, and a noticeably cooler, slightly closer shave with a safety razor.
The foregoing experiment was repeated in all essential details except that polyvinylpyrolidone (PVP) was substituted for the oxazoline polymer. PVP is commonly used as a foam stabilizer. The aerosol formulated with the oxazoline polymer produced a finer foam and a noticeably cooler, slightly closer shave with a safety razor than did the aerosol formulated with PVP.
EXAMPLE 2 Using the homopolymer of Example 1, an aerosol lather is prepared according to the following formula:
The above ingredients are heated to 80C and there is slowly added with agitation:
Triethunolamine 3.5 Oxazoline homopolymer .2 Water 78.5
Arluccl 60 is the trademark of Atlas Powder Co. for sorbitan monostearate. Tween 60 is Atlas trademark for polyoxyethylenc 20 sorbitan monostcarate.
The mixtureis cooled slowly to room temperature with EXAMPLE 3 The experiment of Example 2 is repeated in all essential details except the following formula is used:
Stearic Acid 6.0% Myristic Acid 20 Lanolin 0.8 Cetyl Alcohol 0.5 Tween 20 (polyoxy- 5.0
ethylene 20 sorbitan monolaurate) Tween (polyoxy- 5.0%
ethylene 20 sorbitan monooleate) Triethanolamine 4.0 Borax 0.1
The above ingredients are heated to 80C and there is added thereto with storage the following mixture preheated to 82:
Neutral sodium 1.0%
stearate Sorbitol 3.5
Oxazoline homopolymer 1.0
Water 71 l The stearic acid, myristic acidjtriethanolamine and neutral sodium stearate constitute the soap portion of the above formula. Their combined proportions constitute about 13 percent of the total solution.
The mixture is packaged as before. It produces a rich, moist lather of excellent stability.
bis(hydroxymethyl)-2-isopropenyl 2-oxazoline. A moist, stable foam is obtained.
EXAMPLE 5 The experiment of Example 1 is repeated in all essential details except that 4,4-bis(hydroxymethyl)-2- isobutenyl)-2-oxazoline is substituted by 4,4- bis(hydroxy-methyl)-2 isopropenyl-2-oxazoline. A moist, stable foam is obtained.
We claim:
1. An aerosol-dispensedshaving lather consisting es sentially of an aqueous solution of from about 1 l.5-l3.75 percent soap and from about 0.1 to about 1.0 percent of the homopolymer of an oxazoline corresponding to the formula where R is hydrogen, methyl or ethyl and an effective amount of a propellant.
2. The composition of claim 1 wherein said Oxazoline is 4,4-bis(hydroxymethyl)-2-oxazo1ine.
3. The composition of claim 1 wherein said oxazoline is 4,4-bis(hydroxymethyl)-2-isopropenyl-2-oxazoline.
4. The composition of claim 1 wherein said Oxazoline is 4,4-bis(hydroxymethyl)-2-isobutenyl-2-oxazoline.
5. The composition of claim I wherein said homopolymer is employed at a concentration within 0.2 to 0.5
2 2 3 2 UNITED STATES PATENT io FIcE CERTIFICATE OF CORRECTION Patent No. 3 g21 1 15 Dated June 28, 1974 Inventor(s) a m j It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
I" v 1 '"v Column 1, line 61,. "dispersed" should be dispensed- Column 3, line 31, "ester" should be -ester) Column 4, line 37, following the word "lather" insert --composition-- Column 4, line 53, "4,4-bis(hydroxymethyl) 2oxazoline" should be --4,4-bis(hydroxymethyl-Zethenyl-2oxazoline- Signed andsealed this 5th day of November 1974.
(SEAL) Attest:
McCOY M. GIBSON JR. C. MARSHALL DANN Attesting Officer Commissioner of Patents Po-wfid "UNITED STATES PATENT oFFlcE t f .CERTIFICATE OF CORRECTION Patent No. 3: gg g Dated June 28. 1974 Inventor-(5)3 A Whit It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Column 1, line 61, "dispersed" should be -dispensed- Column 3, line 31, "ester" should be ester)-- Column 4, line 37, following the word "lather" insert --composition- Colunm 4, line 53, "4,4-bis(hydroxymethyl)-2oxazoline" should be --4,4-bis(hydroxymethyl2-ethenyl-2-oxazoline-- Signed and sealed this 5th day of November 1974.
(SEAL) Attest:
McCOY M. GIBSON JR. C. MARSHALL DANN Attesting Officer Commissioner of Patents

Claims (4)

  1. 2. The composition of claim 1 wherein said oxazoline is 4,4-bis(hydroxymethyl)-2-oxazoline.
  2. 3. The composition of claim 1 wherein said oxazoline is 4,4-bis(hydroxymethyl)-2-isopropenyl-2-oxazoline.
  3. 4. The composition of claim 1 wherein said oxazoline is 4,4-bis(hydroxymethyl)-2-isobutenyl-2-oxazoline.
  4. 5. The composition of claim 1 wherein said homopolymer is employed at a concentration within 0.2 to 0.5 percent.
US00247544A 1972-04-26 1972-04-26 Aerosol shaving lather containing an oxazoline homopolymer Expired - Lifetime US3821116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US00247544A US3821116A (en) 1972-04-26 1972-04-26 Aerosol shaving lather containing an oxazoline homopolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00247544A US3821116A (en) 1972-04-26 1972-04-26 Aerosol shaving lather containing an oxazoline homopolymer

Publications (1)

Publication Number Publication Date
US3821116A true US3821116A (en) 1974-06-28

Family

ID=22935300

Family Applications (1)

Application Number Title Priority Date Filing Date
US00247544A Expired - Lifetime US3821116A (en) 1972-04-26 1972-04-26 Aerosol shaving lather containing an oxazoline homopolymer

Country Status (1)

Country Link
US (1) US3821116A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959160A (en) * 1973-05-16 1976-05-25 Wilkinson Sword Limited Aerosol shaving foam compositions
US4479888A (en) * 1979-08-10 1984-10-30 Agip Petroli S.P.A. Dispersing additives for lubricants, and the method for their preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959160A (en) * 1973-05-16 1976-05-25 Wilkinson Sword Limited Aerosol shaving foam compositions
US4479888A (en) * 1979-08-10 1984-10-30 Agip Petroli S.P.A. Dispersing additives for lubricants, and the method for their preparation

Similar Documents

Publication Publication Date Title
US3923970A (en) Stable aerosol shaving foams containing mineral oil
CA1281657C (en) Foamable compositions and processes for use thereof
KR100227154B1 (en) Self-foaming gel type shaving compositions
US4145411A (en) Pressurized foaming shaving composition
US3577517A (en) Acrylic or methacrylic acid copolymer in resinous aerosol hair preparations
US4282203A (en) Hair lacquer and hair lotion compositions containing a copolymer having units of a vinyl allyl or methally ester of an α- or β-cyclic carboxylic acid
US4272511A (en) Cosmetic compositions for treating hair
US4315910A (en) Aerosol hair spray compositions
GB858544A (en) Improvements in foam producing compositions
US4495169A (en) Aerosol gel shaving cream
US3748276A (en) Aqueous gel composition containing polyether polyol gelling agents
GB922930A (en) Spermicidal composition and method of making same
DE2413122A1 (en) IMPROVED FOAMING GEL
EP1017360B1 (en) Nonaerosol shave gel compositions
US3749772A (en) Dermal protective film
KR850000386B1 (en) Toilet soap bars imparting improved moisturing and skin feel characteristics
US3821116A (en) Aerosol shaving lather containing an oxazoline homopolymer
US3301808A (en) Aqueous aerosol film forming compositions
DE1184951B (en) Process for the production of foams
US4397836A (en) Aerosol hair lacquer composition containing as a propellant a mixture of trifluoromonochloroethane and carbon dioxide and or nitrous oxide
US3177119A (en) Aerosol hair lacquers containing low viscosity polyvinyl acetals
US4474912A (en) Stable water-in-oil emulsions containing polyoxyalkylene block copolymers
JPS56132968A (en) Concentrated aqueous bubble forming composition and its use to fire extinguishing
US4904405A (en) Aerosol preparations containing mixtures of phosphate esters
US2596046A (en) Homogeneous sulfuric acid gel