WO2007050653A2 - Water resistant sunscreen and insect repellent composition - Google Patents

Water resistant sunscreen and insect repellent composition Download PDF

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Publication number
WO2007050653A2
WO2007050653A2 PCT/US2006/041555 US2006041555W WO2007050653A2 WO 2007050653 A2 WO2007050653 A2 WO 2007050653A2 US 2006041555 W US2006041555 W US 2006041555W WO 2007050653 A2 WO2007050653 A2 WO 2007050653A2
Authority
WO
WIPO (PCT)
Prior art keywords
insect repellent
composition
sunscreen
hydroxyethyl
agent
Prior art date
Application number
PCT/US2006/041555
Other languages
French (fr)
Other versions
WO2007050653A3 (en
Inventor
Andrew H. Pechko
Original Assignee
Avon Products, Inc.
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 Avon Products, Inc. filed Critical Avon Products, Inc.
Publication of WO2007050653A2 publication Critical patent/WO2007050653A2/en
Publication of WO2007050653A3 publication Critical patent/WO2007050653A3/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/4906Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom
    • A61K8/4926Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom having six membered rings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/02Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings containing insect repellants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations

Definitions

  • This invention relates to a synergistic sunscreen and insect repellent water based composition, and in particular to an improved water resistant combination sunscreen and insect repellent composition.
  • the composition is non-greasy and pleasantly scented with an approximate SPF factor of 10. Although the composition is highly water resistant, it is easily removed with soap and water.
  • Insect borne diseases are a major non-battle injury threat to the military. Seven of the top eleven diseases that reduce military effectiveness are transmitted by insects. It is imperative for peak military operational efficiency that an acceptable insect repellent be produced to reduce the disease threat and to provide personal protection from insect borne diseases.
  • the insect repellent must also meet the unique requirements necessary for personal protection of the armed forces. When considering the broad spectrum of use, the repellent should be long lasting and acceptable to the user. Also, the military spends long periods of time outdoors and accordingly, an acceptable sunscreen and insect repellent combination for use by field military personnel is highly desirable, particularly if it is compatible with other military materials, such as clothing and weapons. In other words, the composition should not have a negative effect on uniforms or the use and operation of weapons.
  • SPPF Sun Protection Factor
  • the SPF value of a sunscreen allows the consumer to determine the degree of sunburn protection that he or she is willing to accept for a given period of time in the direct exposure to the sun's ultraviolet rays.
  • U.S. Patent No. 4,434,154 entitled “TANNING AND ULTRA-VIOLET SCREENING COMPOSITION HAVING HIGH STABILITY", issued on Feb. 28, 1984 to J. E. McShane discloses a tanning and screening composition that is highly stable after prolonged storage. The composition is alleged to be useful, even after such prolonged storage, for shielding human skin from the harmful ultraviolet rays of the sun.
  • U.S. Patent No. 4,701 ,321 entitled “LIQUID DETERGENT WITH SUNSCREEN AGENT", issued on Oct. 20, 1987 to J. E. Bernstein discloses a liquid detergent with a sunscreen agent selected from the aminobenzoic acid family, the other components of the composition being a preservative, a non-ionic detergent, an amphoteric detergent, or a mixture thereof in an aqueous vehicle.
  • U.S. Patent No. 4,820,508, entitled “SKIN PROTECTIVE COMPOSITION”, issued on Apr. 11 , 1989 to M. S. Wortzman discloses a skin protective composition for topical application to protect human skin from infrared radiation.
  • the composition contains titanium dioxide and mica or coated mica as its principal active reagents.
  • U.S. Patent No. 4,756,905, entitled “INSECT-REPELLENT CAMOUFLAGE COMPOSITION”, issued on JuI. 12, 1988 to J. Melnik discloses a composition for repelling insects and camouflaging the human skin.
  • the insect repellent, N.N-diethyl- m-toluamide (“DEET”), and a camouflage pigment are combined along with an optional emulsifier to allow a single application to serve both the camouflage and insect repellent functions.
  • U.S. Patent No. 3,590,118 entitled “LONG LASTING INSECT REPELLENT FILMS FOR SKIN AND OTHER SUBSTRATES", issued on Jun. 29, 1971 to J. A. Conrady, et al. discloses a long lasting insect repellent film for skin application.
  • the active chemical agents are dissolved in interpolymer resins to provide a slow release system for the active chemical agents when spread and dried as a film on a human being.
  • the coating can be applied by spraying or spreading.
  • U.S. Patent No. 3,821 ,363 entitled "SUNSCREEN PREPARATION EMPLOYING ETHYLENE-MALEIC ANHYDRIDE COPOLYMERS", issued on Jan. 27, 1974 to A. S. Black, et al. discloses a gel of the acid of a cross-linked copolymer of ethylene- maleic anhydride that includes a sunscreen agent. The gel is alleged to be substantially free of any emulsifying agent.
  • U.S. Patent No. 2,435,005, entitled “SKIN PROTECTIVE OINTMENT”, issued on Jan. 27, 1948 to W. F. Huppke, et al. discloses a cream or ointment containing a film-former so that the cream or ointment forms a film on the wearer's skin.
  • the cream or ointment may include an insect repellent or a sunscreen, or both.
  • U.S. Patent No. 4,477,467 entitled “INSECT REPELLENT”, issued on Oct. 16, 1984 to K. Nishizawa, et al. discloses the use of DEET in combination with certain proton acceptors for the purpose of inhibiting the absorption of DEET into the wearer's skin.
  • U.S. Patent No. 2,356,801 entitled “INSECT REPELLENT COMPOSITION”, issued on Aug. 29, 1994 to B. V. Travis, et al. discloses an insect repellent composition in which four insect repellent compounds are combined to improve the effectiveness of the composition.
  • the prior art does not teach a combination sunscreen and insect repellent composition that is a stable emulsion which, when on a wearer's skin, promotes waterproofing and maintains its SPF for protracted periods of time.
  • the present invention meets the requirements of long lasting efficacy under extreme environmental conditions, low initial cost, and water resistance. Further, the composition is non-greasy, easy to apply, and pleasing to the olfactory senses.
  • the invention is a sunscreen and insect repellent composition having an extremely long efficacy period when used in rainy conditions and prolonged periods of high humidity, as in tropical and sub-tropical rain forests, even after the wearer has been under water.
  • the composition includes a sunscreen agent present in an amount effective to provide an SPF of between about 2 and about 50, and preferably in the range of between about 15 and about 30.
  • An insect repellent agent constitutes between about 7% to about 33% by weight of the composition.
  • the composition further includes a plurality of ingredients contributing to the composition's synergistically long efficacy period.
  • these ingredients are an emulsifying agent (for forming a stable emulsion) and a film forming agent (so that the composition forms a film when applied to a wearer's skin).
  • composition forms a stable emulsion lotion that is easy to store. Proper application of the lotion requires little or no training or special precautions. When applied, a thin film is formed on the skin that is non-greasy to the touch and resists water and electrolites, yet it is readily removed by scrubbing with soap and water.
  • the resultant composition has an extremely long efficacy period even when subjected to extreme environmental conditions of high humidity, and even when the wearer goes under water.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Plant Pathology (AREA)
  • Pest Control & Pesticides (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Cosmetics (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

Sunscreen protection and insect repellent water based combination composition having an SPF factor of about 2 to about 50 and further having an unexpected, unusually long efficacy peπod when used in rainy conditions or prolonged penods of high humidity, such as in a tropical or sub-tropical rain forests, or the like, and after the wearer has been underwater The composition forms a stable emulsion lotion that is easy to store No special precautions are required by the person who applies the lotion The composition includes a sunscreen agent, an insect repellent, including sec-butyl 2-(2-hydroxyethyl)pιpeπdιne-1-carboxylate, or 2-(2-hydroxyethyl)-1-pιpeπdιnecarboxylιc acid 1-methylpropyl ester, or picandin, or prapidin, or 1-pipeπdιnecarboxylιc acid 2-(2-hydroxyethyl)-1-methylpropylester hydroxyl-ethyl isobutyl pipeπdine carboxylate ('PICARIDIN'), an emulsifying agent, and a film former, all in an aqueous solvent The composition forms a thin film on the skin, but it is non-greasy to the touch The lotion is easily removed with soap and water

Description

Water Resistant Sunscreen and Insect Repellent Composition
This invention relates to a synergistic sunscreen and insect repellent water based composition, and in particular to an improved water resistant combination sunscreen and insect repellent composition. The composition is non-greasy and pleasantly scented with an approximate SPF factor of 10. Although the composition is highly water resistant, it is easily removed with soap and water.
Insect borne diseases are a major non-battle injury threat to the military. Seven of the top eleven diseases that reduce military effectiveness are transmitted by insects. It is imperative for peak military operational efficiency that an acceptable insect repellent be produced to reduce the disease threat and to provide personal protection from insect borne diseases. The insect repellent must also meet the unique requirements necessary for personal protection of the armed forces. When considering the broad spectrum of use, the repellent should be long lasting and acceptable to the user. Also, the military spends long periods of time outdoors and accordingly, an acceptable sunscreen and insect repellent combination for use by field military personnel is highly desirable, particularly if it is compatible with other military materials, such as clothing and weapons. In other words, the composition should not have a negative effect on uniforms or the use and operation of weapons.
A second major need exists for people who live and work and play in the outdoors. They have protected themselves from insects for years by using insect repellents. Likewise, people who live and play and work outdoors have used sunscreen products to protect the exposed skin from the harmful effects of UV. Those sunscreen products are measured on a scale of increasing protection from 1 to 50. The scale is called the Sun Protection Factor ("SPF"). The SPF value of a sunscreen allows the consumer to determine the degree of sunburn protection that he or she is willing to accept for a given period of time in the direct exposure to the sun's ultraviolet rays.
Products have become commercially available in the recent past that combine sunscreen lotions and insect repellent lotions in one package. These products, for many reasons, are not completely satisfactory. Some of the reasons why they are not satisfactory are as set forth below.
First, many combination insect repellent and sunscreen compositions are easily removed with water. This is a particular problem in the summertime when the person sweats or swims. The effectiveness of the insect repellent and sunscreen composition is dramatically reduced due to sweat removing the composition from the skin.
Second, most insect repellent compositions are oily and offensive to the olfactory system of the wearer as well as to those people who are around the wearer.
U.S. Pat. No. 2,170,185, entitled "MENTHYL ANTHRANILATE AND PROCESS OF PREPARING SAME", issued on Aug. 22, 1939 to M. S. Carpenter discloses a suntan cream having menthyl anthranilate which is a menthyl ester of anthranilic acid.
U.S. Patent No. 4,434,154, entitled "TANNING AND ULTRA-VIOLET SCREENING COMPOSITION HAVING HIGH STABILITY", issued on Feb. 28, 1984 to J. E. McShane discloses a tanning and screening composition that is highly stable after prolonged storage. The composition is alleged to be useful, even after such prolonged storage, for shielding human skin from the harmful ultraviolet rays of the sun.
U.S. Patent No. 4,701 ,321 , entitled "LIQUID DETERGENT WITH SUNSCREEN AGENT", issued on Oct. 20, 1987 to J. E. Bernstein discloses a liquid detergent with a sunscreen agent selected from the aminobenzoic acid family, the other components of the composition being a preservative, a non-ionic detergent, an amphoteric detergent, or a mixture thereof in an aqueous vehicle.
U.S. Patent No. 4,820,508, entitled "SKIN PROTECTIVE COMPOSITION", issued on Apr. 11 , 1989 to M. S. Wortzman discloses a skin protective composition for topical application to protect human skin from infrared radiation. The composition contains titanium dioxide and mica or coated mica as its principal active reagents. U.S. Patent No. 4,756,905, entitled "INSECT-REPELLENT CAMOUFLAGE COMPOSITION", issued on JuI. 12, 1988 to J. Melnik discloses a composition for repelling insects and camouflaging the human skin. The insect repellent, N.N-diethyl- m-toluamide ("DEET"), and a camouflage pigment are combined along with an optional emulsifier to allow a single application to serve both the camouflage and insect repellent functions.
U.S. Patent No. 3,590,118, entitled "LONG LASTING INSECT REPELLENT FILMS FOR SKIN AND OTHER SUBSTRATES", issued on Jun. 29, 1971 to J. A. Conrady, et al. discloses a long lasting insect repellent film for skin application. The active chemical agents are dissolved in interpolymer resins to provide a slow release system for the active chemical agents when spread and dried as a film on a human being. The coating can be applied by spraying or spreading.
U.S. Patent No. 3,821 ,363, entitled "SUNSCREEN PREPARATION EMPLOYING ETHYLENE-MALEIC ANHYDRIDE COPOLYMERS", issued on Jan. 27, 1974 to A. S. Black, et al. discloses a gel of the acid of a cross-linked copolymer of ethylene- maleic anhydride that includes a sunscreen agent. The gel is alleged to be substantially free of any emulsifying agent.
U.S. Patent No. 2,435,005, entitled "SKIN PROTECTIVE OINTMENT", issued on Jan. 27, 1948 to W. F. Huppke, et al. discloses a cream or ointment containing a film-former so that the cream or ointment forms a film on the wearer's skin. The cream or ointment may include an insect repellent or a sunscreen, or both.
U.S. Patent No. 2,853,423, entitled "AEROSOL SUN-SCREENING COMPOSITION", issued on Sep. 23, 1958 to A. L. La Via discloses an aerosol composition alleged to be useful in protecting against sunburn.
U.S. Patent No. 4,477,467, entitled "INSECT REPELLENT", issued on Oct. 16, 1984 to K. Nishizawa, et al. discloses the use of DEET in combination with certain proton acceptors for the purpose of inhibiting the absorption of DEET into the wearer's skin. U.S. Patent No. 2,356,801 , entitled "INSECT REPELLENT COMPOSITION", issued on Aug. 29, 1994 to B. V. Travis, et al. discloses an insect repellent composition in which four insect repellent compounds are combined to improve the effectiveness of the composition.
None of these previous efforts, however, provides the benefits provided by the present invention. Additionally, the prior art does not teach or suggest the present inventive combination of component elements, as disclosed and claimed herein. The present invention achieves its intended purposes, objectives and advantages over the prior art compositions through a new, useful and unobvious combination of component elements. The present invention is simple to use, it contains a minimum number of functioning ingredients, it has reasonable manufacturing, testing and packaging costs, and it uses only readily available materials.
In particular, the prior art does not teach a combination sunscreen and insect repellent composition that is a stable emulsion which, when on a wearer's skin, promotes waterproofing and maintains its SPF for protracted periods of time.
Although there have been many inventions related to sunscreen protection and insect repellent compositions, none of the prior art has provided an effective, low cost and reliable product which has achieved general use.
The present invention meets the requirements of long lasting efficacy under extreme environmental conditions, low initial cost, and water resistance. Further, the composition is non-greasy, easy to apply, and pleasing to the olfactory senses.
In brief, the invention is a sunscreen and insect repellent composition having an extremely long efficacy period when used in rainy conditions and prolonged periods of high humidity, as in tropical and sub-tropical rain forests, even after the wearer has been under water. The composition includes a sunscreen agent present in an amount effective to provide an SPF of between about 2 and about 50, and preferably in the range of between about 15 and about 30. An insect repellent agent constitutes between about 7% to about 33% by weight of the composition. The composition further includes a plurality of ingredients contributing to the composition's synergistically long efficacy period. In particular, these ingredients are an emulsifying agent (for forming a stable emulsion) and a film forming agent (so that the composition forms a film when applied to a wearer's skin).
The composition forms a stable emulsion lotion that is easy to store. Proper application of the lotion requires little or no training or special precautions. When applied, a thin film is formed on the skin that is non-greasy to the touch and resists water and electrolites, yet it is readily removed by scrubbing with soap and water.
The resultant composition has an extremely long efficacy period even when subjected to extreme environmental conditions of high humidity, and even when the wearer goes under water.
The foregoing has outlined rather broadly the more pertinent and important features of the present invention in order that the detailed description of the invention that follows may be better understood so that the present contribution to the art can be more fully appreciated. Additional features of the invention, described hereinafter, form the subject of the claims of the invention. It should be appreciated by those skilled in the art that the conception and the specific embodiments disclosed may be readily utilized as a basis for modifying or designing other compositions for carrying out the same purposes as the present invention. It should also be realized by those skilled in the art that such equivalent compositions do not depart from the spirit and scope of the invention as set forth in the appended claims.

Claims

Claims
1. A waterproof sunscreen and insect repellent stable emulsion composition, comprising:
(a) a sunscreen agent(s) present in an amount effective to provide an SPF of from 5 to about 50;
(b) an insect repellent agent comprising sec-butyl 2-(2-hydroxyethyl)piperidine-1- carboxylate, or 2-(2-hydroxyethyl)-1-piperidinecarboxylic acid 1-methylpropyl ester, or picaridin, or propidin, or 1-piperidinecarboxylic acid 2-(2-hydroxyethyl)- 1 -methyl propylester hydroxyl-ethyl isobutyl piperidine carboxylate present in an amount from about 6 wt % to about 40 wt %;
(c) water and water based ingredients;
(d) an emulsifying agent for forming a stable emulsion; and
(e) a film forming agent present in an amount effective to form a thin film when the composition is applied to the skin of a person.
2. A composition according to Claim 1 , wherein the insect repellent agent is picaridin.
PCT/US2006/041555 2005-10-25 2006-10-23 Water resistant sunscreen and insect repellent composition WO2007050653A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73013805P 2005-10-25 2005-10-25
US60/730,138 2005-10-25

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WO2007050653A2 true WO2007050653A2 (en) 2007-05-03
WO2007050653A3 WO2007050653A3 (en) 2008-01-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266270A (en) * 2010-06-04 2011-12-07 江苏七洲绿色化工股份有限公司 Mosquito repelling agent
EP2462917A1 (en) 2010-12-08 2012-06-13 Saltigo GmbH Insect repellent sun screen formulae, method for producing same and use of same to protect human skin from uv light and insect bites
WO2012168049A3 (en) * 2011-06-07 2013-09-12 Beiersdorf Ag USE OF ε-POLYLYSINE (EPSILON-POLYLYSINE) FOR IMPROVING THE WATERPROOFNESS OF COSMETIC OR DERMATOLOGICAL FORMULATIONS

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050136012A1 (en) * 2003-12-23 2005-06-23 Gonzalez Anthony D. Sunscreen compounds and compositions containing same and methods for use thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050136012A1 (en) * 2003-12-23 2005-06-23 Gonzalez Anthony D. Sunscreen compounds and compositions containing same and methods for use thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BADOLO ET AL.: 'Evaluation of the sensitivity of Aedes aegypti and Anopheles gambiae complex mosquitoes to two insect repellents: DEET and KBR 3023' TROPICAL MEDICINE AND INTERNATIONAL HEALTH vol. 9, no. 3, March 2004, pages 330 - 334 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266270A (en) * 2010-06-04 2011-12-07 江苏七洲绿色化工股份有限公司 Mosquito repelling agent
CN102266270B (en) * 2010-06-04 2013-01-30 江苏七洲绿色化工股份有限公司 Mosquito repelling agent
EP2462917A1 (en) 2010-12-08 2012-06-13 Saltigo GmbH Insect repellent sun screen formulae, method for producing same and use of same to protect human skin from uv light and insect bites
WO2012076669A1 (en) 2010-12-08 2012-06-14 Saltigo Gmbh Insect-repelling formulations of sun screens, method for producing same and use thereof for the protection from uv light and insect bites
WO2012168049A3 (en) * 2011-06-07 2013-09-12 Beiersdorf Ag USE OF ε-POLYLYSINE (EPSILON-POLYLYSINE) FOR IMPROVING THE WATERPROOFNESS OF COSMETIC OR DERMATOLOGICAL FORMULATIONS

Also Published As

Publication number Publication date
WO2007050653A3 (en) 2008-01-24

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