EP0723948B1 - "Capsaicinoid" enthaltendes Tränengas - Google Patents

"Capsaicinoid" enthaltendes Tränengas Download PDF

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Publication number
EP0723948B1
EP0723948B1 EP95300595A EP95300595A EP0723948B1 EP 0723948 B1 EP0723948 B1 EP 0723948B1 EP 95300595 A EP95300595 A EP 95300595A EP 95300595 A EP95300595 A EP 95300595A EP 0723948 B1 EP0723948 B1 EP 0723948B1
Authority
EP
European Patent Office
Prior art keywords
weight
lachrymator
capsaicinoids
solution
water
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.)
Revoked
Application number
EP95300595A
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English (en)
French (fr)
Other versions
EP0723948A1 (de
Inventor
David K. Dubay
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.)
Defense Technology Corp of America
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Defense Technology Corp of America
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Application filed by Defense Technology Corp of America filed Critical Defense Technology Corp of America
Publication of EP0723948A1 publication Critical patent/EP0723948A1/de
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D7/00—Compositions for gas-attacks

Definitions

  • the present invention relates to a liquid composition useful as a lachrymator. More particularly, the invention concerns a lachrymator comprising capsaicinoids and a nonflammable water-based carrier.
  • Lachrymators are better known, and commonly referred to as "tear gas” or "riot gas.” Lachrymators serve a significant role in society because they allow the police, military and other authorities to control unruly or disruptive persons, including persons under the influence of alcohol or other mind-altering drugs, without having to resort to physical means that may inflict long-term or permanent bodily harm or damage.
  • the recipient of the lachrymator Upon application of a lachrymator, the recipient of the lachrymator is overcome by eye, nose and mouth irritation and rendered harmless. More particularly, upon application, the recipient is temporarily disabled with intense burning eye pain, blepharospasm, acute bronchitis and respiratory irritation.
  • lachrymators such as, for example, pressurized canisters, hand grenades, and munition cartridges.
  • Patent 3,192,105 there is disclosed a method of combining CN with a colloidal silica to produce a solid phase lachrymator. As disclosed in the '105 patent, this solid phase lachrymator is well suited for use in munitions which disperse the lachrymator by an explosion or similar means.
  • CHEMICAL MACE® lachrymator a liquid based CN chemical formula which was filled into pressurized aerosol spray containers.
  • CHEMICAL MACE® lachrymator has been the forerunner of all such products since its introduction in 1966. Its use greatly lessens the amount of physical force which might be necessarily applied by a law enforcement officer, corrections officer or security officer when attempting to detain a suspect or disperse a crowd of unruly persons.
  • Lachrymators are generally classified as "nonlethal weapons.”
  • the original CHEMICAL MACE® lachrymator formula consisted of trichlorotrifluoroethanes (CFC's 111, 113) and cosmetic kerosene as the carrier agent/solvent, blended with the active ingredient (CN), and pressurized with carbon dioxide as the propellant. This formula was used extensively until about 1990, but beginning about 1990 there was increasing pressure on the chemical industry to phase out ozone depleting substances (i.e., chlorofluorocarbons--CFC's) under the provisions of the Clean Air Act.
  • CFC's 111, 113 trichlorotrifluoroethanes
  • CN active ingredient
  • the CFC's which serve as a nonflammable carrier, provide a significant advantage for the lachrymator solution.
  • lachrymator solutions that employ a CFC carrier are generally less likely to ignite. More particularly, when a lachrymator is dispensed, there is always the possibility that an open flame or other source of ignition may be present that could ignite the carrier of the mixture resulting in serious bodily harm to both the user and the intended recipient of the lachrymator.
  • a nonflammable carrier is less likely to ignite when exposed to such sources of ignition and is thus a preferred carrier for use in lachrymators.
  • Capsicum also known as cayenne pepper
  • capsaicin C 18 H 27 NO 2
  • Prior art capsicum containing lachrymators have comprised a mixture of capsicum, soybean oil and an alcohol type solvent.
  • Capsicum containing lachrymators are preferred by some users. More particularly, some users believe that capsicum containing lachrymators are more effective than other prior art lachrymators. Additionally, some users prefer capsicum because it is a "natural" material as compared to the man-made chemicals CS and CN.
  • U.S. Patent 5,217,708 describes a capsicum lachrymator solution and canister for storing and applying such solutions.
  • the solutions comprise capsicum (generally about 0.1% to about 0.8% by weight), about 7% to about 23% by weight of a glycol, about 31% to about 39% by weight of ethyl alcohol, and from abut 46% to about 54% by weight of water.
  • the present invention provides a new and useful capsicum containing liquid lachrymator solution which comprises capsaicinoids and a nonflammable carrier, said solution comprising from 0.1% to 0.5% by weight of capsaicinoids, from 7% to 23% by weight of a glycol, from 20% to 30% by weight of ethanol and from 55% to 65% by weight of water.
  • the lachrymator of the present invention includes a nonflammable carrier that is generally acceptable for use around or in the vicinity of potential sources of ignition such as, for example, lit cigarettes or cigars, candles and stoves. Furthermore, the nonflammable carrier does not contain any CFC's. Also, the lachrymator tends not to adversely impact upon the blood-alcohol level of a recipient. Additionally, the lachrymator is suitable for use in conventional pressurized aerosol spray canisters or containers and thus it does not have to be thermally vaporized by a heat source in order to perform properly. Further, the lachrymator is substantially water-based yet it is very stable for it does not freeze through a normal range of temperatures and it does not separate over periods of time.
  • the lachrymator is also stable in that it does not spoil or lose its effectiveness over periods of time and there are no adverse interactions or reactions observed as between the various components of the lachrymator. Further, the lachrymator can be disposed of in a conventional manner.
  • a lachrymator solution made in accordance with the principles of the present invention comprises capsaicinoids and a nonflammable carrier.
  • the nonflammable carrier comprises water, ethyl alcohol and glycol.
  • the glycol may comprise ethylene glycol or propylene glycol or mixtures thereof. In a preferred embodiment, the glycol is propylene glycol.
  • capsicum includes capsicum and chemical equivalents such as capsaicin
  • lactrymator is intended to be afforded a broad interpretation including any irritant-type product that may be utilized for defense purposes
  • nonflammable means having a flash point in excess of about 100°F (38°C) or an ignition point above 500°F (260°C).
  • the lachrymator of the present invention is produced utilizing a mixture of capsaicinoids and a nonflammable carrier. More particularly, the lachrymator solutions of the present invention comprise from 0.1% to 0.5% by weight of capsaicinoids, from 7% to 23% by weight of a glycol, from 20% to 30% by weight of ethanol, and from 56% to 65% by weight of water. In other embodiments, the lachrymator solutions of the present invention comprise from 0.1% or 0.15% up to about 0.25% or 0.3% or 0.4% by weight of capsaicinoids, from about 10% or 12% to about 16% or 20% by weight of a glycol, from about 26% or 27% up to 29% or 30% by weight of ethanol and from 56% up to 60% by weight of water.
  • the solutions useful as lachrymators comprise about 0.18% to about 0.22% by weight of capsaicinoids, about 12% to about 16% by weight of propylene glycol, about 27% to about 29% by weight of ethanol and about 57% to about 59% by weight of water.
  • capsaicinoids useful in this invention include peppers such as cayenne peppers or chili peppers.
  • the process usually involves drying and grinding peppers into a fine powder.
  • Oleoresin capsicum present in the powder generally is extracted through the use of an organic solvent such as hexane. This mixture of powder and solvent is referred to as Miscella.
  • Miscella This mixture of powder and solvent is referred to as Miscella.
  • the solvent is removed by evaporation or distillation. After the solvent is removed from the Miscella, the remaining oily substance is raw oleoresin capsicum, the strength of which is dependent upon the grade of the peppers that were utilized.
  • the raw oleoresin capsicum generally is diluted to various strengths according to customer specifications utilizing a glycol and water if the diluted product is to be water-soluble. Emulsifiers and surfactants may be included in the diluted mixture to improve the stability of the mixture (generally a suspension). These diluted products are generally referred to in the industry as oleoresin capsicum regardless of the concentration or strength of the raw oleoresin capsicum contained in the mixtures.
  • Oleoresin capsicum consists of three major components that cause the pungency or hotness. These components are known as capsaicinoids, and the three major capsaicinoids in oleoresin capsicum are capsaicin, dihydrocapsaicin and nordihydrocapsaicin. Minor capsaicinoids present in oleoresin capsicum include homocapsaicin and homodihydrocapsaicin.
  • the capsaicinoid content of a given solution or mixture is the determining factor of how hot a product will be. For example, the higher the capsaicinoid concentration, the hotter the product, and vice versa. Capsaicinoid concentration is the determination of the active components in oleoresin capsicum.
  • a measurement of the amount of capsaicinoids in oleoresin capsicum provides an accurate level of pungency.
  • the amounts and identification of the capsaicinoids in oleoresin capsicum can be detected utilizing high performance liquid chromatography (HPLC).
  • capsicum and propylene glycol mixture suitable for use in the present invention and which is commercially available is an oleoresin capsicum sold by Kalsec, Inc. of Kalamazoo, Michigan under the designation "Oleoresin Capsicum, W/S, decolorized 2% MC.
  • This particular propylene glycol/water-based oleoresin capsicum solution contains about 5% oleoresin capsicum containing about 2.0% by weight of capsaicinoids.
  • An example of a suitable source of ethyl alcohol for use with the present invention is a denatured ethyl alcohol sold under the trade designation SDA-40-B by Midwest Grain Products, Inc. of Weston, Missouri 64098.
  • SDA-40-B denatured ethyl alcohol contains about 99.9% by weight ethyl alcohol and about 0.1% by weight tertiary butyl alcohol and BITREX (denatonium benzoate).
  • propylene glycol is a food grade propylene glycol USP available under the product code 70531 from the Dow Chemical Company of Midland, Michigan 48674.
  • the indicated components are mixed together in a vessel using a stirrer for a minimum of about 10 to 15 minutes.
  • the oleoresin capsicum is first mixed with the ethanol followed by addition of the glycol and water.
  • the components can be mixed in a proportion shown for a period of about one hour in 55-gallon drums utilizing mixers. Thorough mixing is required in order to eliminate any separation of the components of the solution which would require additional mixing of the solution at a later time. Upon completion of the mixing step, the solution should appear clear and homogenous when viewed with a flashlight.
  • Denatured ethyl alcohol (114 parts) is charged to a mixing vessel followed by the addition of 42 parts of the Kalsec oleoresin capsicum solution described above (containing about 2.0% of capsaicinoids) which is first thoroughly mixed to restore homogeneity before it is added to the ethyl alcohol.
  • the oleoresin capsicum is thoroughly mixed with the ethanol, 19.5 parts of propylene glycol USP grade are added to the mixing vessel followed by 209.6 parts of distilled water. The contents of the vessel are mixed for an additional 15 minutes.
  • the mixture is the desired product which is analyzed and found to contain about 0.20% by weight of capsaicinoids, 14% by weight of propylene glycol, 28% by weight of ethanol and 58% by weight of water.
  • the amount of the Kalsec oleoresin capsicum solution used in the examples is an amount sufficient to provide the indicated amount of capsaicinoids.
  • the lachrymator solutions made in accordance with the present invention may be utilized in any number of conventional pressurized aerosol spray containers or canisters.
  • the nonflammable carrier should be a liquid or a gas at ambient temperature (i.e., about 70°F (21°C) and at ambient pressure.
  • the carrier has a boiling point of less than about 225°F (about 107°C) in order to ensure sufficient dispersion or distribution of the capsicum once the solution is dispensed from the pressurized canister.
  • the nonflammable carrier does not solidify or freeze at low temperatures as low as -20°F.
  • the amounts of propylene glycol, ethanol and water present in the solution must be such that the components of the lachrymator solution do not separate out or come out of solution over extended periods of time such as three days, preferably about three to four weeks.
  • the lachrymator solution of the present invention offers several advantages over the lachrymators claimed in U.S. Patent 5,217,708.
  • these solutions of the present invention are characterized as having a higher flash point and a lower vapor pressure.
  • a lachrymator solution prepared in accordance with the procedure of Example XV in U.S. Patent 5,217,708 is found to have a flash point of about 80°F (25°C).
  • a lachrymator solution prepared in accordance with the procedure of Example 1 of the present application is found to have a flash point of 89°F (31.6°C). Because of increased concern over flammability, this increase in flash point is a significant improvement.
  • the reduction in vapor pressure exhibited by the solutions of the present invention result in more stable products and products which are able to withstand higher temperature extremes.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Fats And Perfumes (AREA)
  • Medicinal Preparation (AREA)
  • Cosmetics (AREA)
  • Seasonings (AREA)

Claims (16)

  1. Lösung für die Verwendung als ein Tränengas mit Capsaicinoiden und einem nichtbrennbaren Träger, wobei diese Lösung 0,1 bis 0,5 Gew.% Capsaicinoide, 7 bis 23 Gew.% Glycol, 20 bis 30 Gew.% Ethanol und 56 bis 65 Gew.% Wasser umfasst.
  2. Lösung nach Anspruch 1, worin das Glycol Propylenglycol umfasst.
  3. Lösung nach Anspruch 1 oder 2, die 0,1 bis etwa 0,4 Gew.% Capsaicinoide umfasst.
  4. Lösung nach Anspruch 3, die etwa 0,15 bis 0,25 Gew.% Capsaicinoide umfasst.
  5. Lösung nach einem der Ansprüche 2 bis 4, die etwa 10 bis 20 Gew.% Propylenglycol umfasst.
  6. Lösung nach einem der vorausgehenden Ansprüche, die etwa 26 bis 30 Gew.% Ethanol umfasst.
  7. Lösung nach einem der vorausgehenden Ansprüche, die 56 bis etwa 60 Gew.% Wasser umfasst.
  8. Lösung nach einem der vorausgehenden Ansprüche, worin die Capsaicinoide Capsaicin, Dihydrocapsaicin und Nordihydrocapsaicin umfassen.
  9. Tränengaslösung für die Verwendung in einem unter Druck stehenden Aerosolbehälter, der keine Heizquelle zum Verdampfen der Lösung hat, wobei diese Lösung Capsaicinoide und einen nichtbrennbaren Träger umfasst, der für die Verwendung in einem Tränengas geeignet ist, wobei dieser Träger bei Umgebungstemperatur und -druck flüssig ist und einen Siedepunkt geringer als etwa 110 °C hat und die Lösung 0,1 bis 0,4 Gew.% Capsaicinoide. 7 bis 23 Gew.% Propylenglycol, 20 bis 30 Gew.% Ethanol und 56 bis 65 Gew.% Wasser umfasst.
  10. Tränengaslösung nach Anspruch 9, die etwa 0,15 bis 0,25 Gew.% Capsaicinoide umfaßt.
  11. Tränengaslösung nach Anspruch 9 oder 10, die etwa 10 bis 20 Gew.% Propylenglycol umfasst.
  12. Tränengaslösung nach einem der Ansprüche 9 bis 11, die etwa 26 bis 30 Gew.% Ethanoi umfasst.
  13. Tränengaslösung nach einem der Ansprüche 9 bis 12, die 56 bis etwa 60 Gew.% Wasser umfasst.
  14. Tränengaslösung nach einem der Ansprüche 9 bis 13, worin die Capsaicinoide Capsaicin, Dihydrocapsaicin und Nordihydrocapsaicin umfassen.
  15. Tränengaslösung für die Verwendung in einem unter Druck stehenden Aerosolbehälter, worin diese Lösung Capsaicinoide und einen nichtbrennbaren Träger umfasst, der für die Verwendung in dem Tränengas geeignet ist und wobei diese Lösung 0,15 bis 0,25 Gew.% Capsaicinoide, 10 bis 20 Gew.% Propylenglycol, 26 bis 30 Gew.% Ethanol und 56 bis 60 Gew.% Wasser umfasst.
  16. Tränengaslösung nach Anspruch 15, worin die Capsaicinoide Capsaicin, Dihydrocapsaicin und Nordihydrocapsaicin umfassen.
EP95300595A 1995-01-24 1995-01-31 "Capsaicinoid" enthaltendes Tränengas Revoked EP0723948B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37383495A 1995-01-24 1995-01-24
US373834 1995-01-24

Publications (2)

Publication Number Publication Date
EP0723948A1 EP0723948A1 (de) 1996-07-31
EP0723948B1 true EP0723948B1 (de) 2003-03-26

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ID=23474087

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EP95300595A Revoked EP0723948B1 (de) 1995-01-24 1995-01-31 "Capsaicinoid" enthaltendes Tränengas

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EP (1) EP0723948B1 (de)
AT (1) ATE235443T1 (de)
DE (1) DE69530062T2 (de)
DK (1) DK0723948T3 (de)
ES (1) ES2189818T3 (de)
PT (1) PT723948E (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003298943A1 (en) * 2002-12-09 2004-06-30 Marilyn V. Zager Topical composition for heightened sensitivity
EP2907503A1 (de) * 2003-04-10 2015-08-19 Neurogesx, Inc. Verfahren und Zusammensetzungen zur Verabreichung von TRPV1-Agonisten
WO2006055640A2 (en) * 2004-11-19 2006-05-26 Mace Security International, Inc. Gel compositions
GB0713011D0 (en) * 2007-07-05 2007-08-15 Bauer Eran N Improved incapacitant spray
RU2562993C1 (ru) * 2014-05-07 2015-09-10 Общество с ограниченной ответственностью "ИТ" Гелевый состав слезоточивого раздражающего действия для средств самообороны (варианты)
FR3123067A1 (fr) * 2021-05-21 2022-11-25 Eric Poulnais Procédé de production et préparation de compositions à base de capsaïcinoïdes et/ou vanilloïdes pour un usage défensif et/ou de protection, compositions à base de capsaïcinoïdes et/ou vanilloïdes et dispositifs de production et/ou projection associés.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL39273A (en) * 1972-04-23 1977-07-31 Ispra Spa Homogeneous foamable lacrymator aerosol composition
JP2729244B2 (ja) * 1988-07-22 1998-03-18 株式会社大阪造船所 エアゾール製品
US5217708A (en) * 1992-02-05 1993-06-08 Defense Technology Corporation Of America Capsicum lachrymator
US5307960A (en) * 1992-10-14 1994-05-03 Omega Securitie, Inc. Safety aerosol dispenser

Also Published As

Publication number Publication date
ES2189818T3 (es) 2003-07-16
DE69530062T2 (de) 2004-02-05
DK0723948T3 (da) 2003-06-23
PT723948E (pt) 2003-07-31
EP0723948A1 (de) 1996-07-31
DE69530062D1 (de) 2003-04-30
ATE235443T1 (de) 2003-04-15

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