EP1198220A1 - Sunblocking polymers and their novel formulations - Google Patents
Sunblocking polymers and their novel formulationsInfo
- Publication number
- EP1198220A1 EP1198220A1 EP99937690A EP99937690A EP1198220A1 EP 1198220 A1 EP1198220 A1 EP 1198220A1 EP 99937690 A EP99937690 A EP 99937690A EP 99937690 A EP99937690 A EP 99937690A EP 1198220 A1 EP1198220 A1 EP 1198220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sunscreen
- carbon atoms
- formulation according
- sunscreen formulation
- absorbing
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- A61K8/8141—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q17/00—Barrier 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
- A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/57—Compounds covalently linked to a(n inert) carrier molecule, e.g. conjugates, pro-fragrances
Definitions
- the field of this invention is novel sunblock(s) and their formulations for use in dermatological applications.
- UV-blocking compounds penetrate into the skin where they convert the absorbed UV radiation into heat, which in turn dilates the vessels, a sensation that is perceived as unpleasant.
- the reflecting inorganic pigments such as zinc or titanium oxides, are strongly and adversely visible on the skin, even if micronized, nanomized and/or tinted.
- nanomized oxides tend to be less visible than the other oxides employed, they tend to penetrate into the tissue and cause inflammatory reactions.
- An ideal sun radiation blocking formulation should be invisible on the surface of the skin and should be non-absorbable to be completely biologically inert.
- the UV blocking agent of the formulation should cover the entire UV range of atmospheric radiation.
- the blocking agent should also absorb, reflect and diffract the infrared radiation known to potentiate the carcinogenic and inflammatory effect of ultraviolet light. There is, therefore, substantial interest in developing novel sun blocking formulations which approximate these ideals.
- UV absorbing microparticulate, biologically inert acrylic polymers formulated to be substantially imperceptible as a thin layer on the skin are provided wherein the polymers have a plurality of UV absorbing moieties that substantially cover the wave-length range of light (sunlight) which penetrates to the earth's surface and is undesirable for the health of the subject.
- the sun blocking polymers are formulated in particular ways for efficacy, transparency and stability in aqueous milieu.
- the polymers may be formulated in combination with a tocopherol or one or more of its functional analogs or derivatives or in one or more of a variety of known vegetable, mineral or silicone oils, and the like, with the addition of substantially or strictly non-toxic organic and or inorganic additives.
- the formulations provide for safe protection against the deleterious effects of UV radiation on the skin and surprisingly provide for sunscreens that are biologically inert and substantially unobsevable during their residence on the skin.
- Novel sun blocking polymeric compositions and their formulations are provided wherein the polymeric compositions comprise at least two different UV absorbing moieties and a moiety other than a UV absorbing moiety on the acrylic backbone.
- the compositions find use as sun blocking agents in a variety of contexts.
- the polymers may be prepared by combining the individual monomers under addition polymerizing conditions, which may involve precipitation or emulsification in appropriate amounts, taking into consideration the differential rates of incorporation of the different monomers, whereby a product is obtained having an effective proportion of monomers which absorb UV light in the wave length range to which skin is deleteriously exposed on earth.
- UV absorbers of at least UV-A and UV-B will be present, wherein there could also optionally be an absorber for UV-C.
- at least one other monomer which will be an acrylic acid (includes ⁇ -substitutents, e.g. methyl), particularly a derivatized acrylic acid, more particularly derivatized carboxyl groups, such as esters and amides, where the group bonded to the carboxyl may be hydrophilic or hydrophobic, the latter having one or more oxy groups, usually not more than about 6 oxy groups, hydroxyl and ether.
- the number ratio of total UV absorbers to other monomer(s) in the polymer will be in the range of about 0.1 -10: 1, usually 0.5 -5:1, more usually 1-5:1.
- the UV absorbers present in the polymer there will generally be about 30-98 number percent of the UV-B absorber, more usually from about 50 to 95 number %, at least 2 number percent of the UV-A absorber, usually at least about 5 number %, and optionally the remainder being the UV-C absorber, if present.
- the molecular weight may vary widely, where the composition of individual molecules may vary as the polymerization proceeds.
- a cross-linking agent generally from about 0.5-10 mole percent, more usually from about 1-3 mole percent of total monomer.
- a carrier composition for the polymer shall comprise a tocopherol and/or one or more of its analogs or derivatives having Vitamin E activity, or various vegetable, mineral or silicone oils.
- the tocopherol derivatives will usually be not more than about 60 carbon atoms, usually not more than about 40 carbon atoms, particularly not more than about 35 carbon atoms, usually being esters.
- various additives such as small amounts of a metal oxide and/or ascorbate may be added for increased protection, while still maintaining transparency and stability of the composition.
- the UV-absorbing monomers will desirably have high extinction coefficients, at least about 20,000, preferably in excess of about 25,000.
- the UV-A absorbers will, for the most part, be benzophenones, bis-benzoylmethane or benzotriazole compounds, substituted with appropriate substituents for providing the desired light absorption characteristics, other desirable properties, as well as for linking to the acryl group.
- Preferred UV-A absorbers have a ⁇ , ⁇ in excess of340nm.
- the UV-A absorbers will usually have enhanced stability in sunlight, particularly when incorporated in the subject polymeric compositions.
- the UV-A absorbers of the subject composition will have one of the following formuli:
- R is H, alkyl of from 1 to 3, usually 1 to 2, carbon atoms, which may be substituted with a functional group having from 1 to 2 heteroatoms, which are N or O;
- R 2 is a bond, with the proviso that when R 2 is a bond or only one carbon atom, only one W is present or is a divalent hydrocarbylene group or substituted hydrocarbylene group, having up to 2, usually up to 1 substituent, where the substituent will be composed of oxygen, nitrogen, phosphorus, carbon and hydrogen, having from 1 to 3 heteroatoms, usually 1 to 2 heteroatoms, where the heteroatom may be in the chain, and from 0 to 6, usually 0 to 4 carbon atoms, which group may be aliphatic, alicyclic or aromatic, generally of from 1 -8, usually of from 2-8, more usually of from 2-6 carbon atoms, particularly phenylene or alkylene;
- Z is oxy, particularly hydroxy or alkoxy of from 1-6, more usually 1-3 carbon atoms, amino having from 0-2 alkyl substituents having a total of from about 1-12, more usually from about 1-6 carbon atoms, alkyl of from 1 to 5 carbon atoms, usually 1 to 2
- Y is non-oxo carbonyl, which includes the carboxylic acid, carboxyl ester, where the ester will normally have an alkyl group of from 1-6, usually from 1-3 carbon atoms, or carboxamide, where the amino may be substituted or unsubstituted, where the substituted amino will have from
- alkyl substituents with a total of from 1-12 carbon atoms, usually of from 1-6 carbon atoms;
- Y is preferably at the ortho position in relation to the carbonyl;
- W is oxy (-O-) or amino (-N ⁇ 1 )), where R 1 is hydrogen or alkyl of from 1-6, usually 1-3 carbon atoms, where W is preferably oxy, when n is 1 ; there being from 0-2, usually 0-1 Y. Where the same symbol may be present a plurality of times, each of the incidences may be the same or different.
- the rings may be substituted with from 0-3, usually 0-2 alkyl groups of from 1-6, more usually 1-3 carbon atoms, at available positions on the rings.
- the compounds for the most part will be benzoyloxy derivatives, particularly substituted benzoyloxy derivatives, more particularly para-amino substituted benzoyloxy derivatives and derivatives of cinnamic acid.
- these compounds will come within one of the following formulae:
- R 3 and P are hydrogen or alkyl up to 6 carbon atoms, usually 1-3 carbon atoms, preferably methyl, and are the same or different; and W, R and R 2 are as defined previously; or
- M is carbonyl or methylene and W, R, R 2 and R 4 are as defined above.
- the UV-C absorbing compound will be an oxybenzoyl derivative bonded to an acryl group through a divalent bridging moiety.
- the UV-C absorbing group will have the following formula:
- R 4 is hydrogen or alkyl of from 1-6, usually 1-3 carbon atoms, preferably methyl, and the remaining symbols have been defined previously.
- the remaining monomers may be substituted or unsubstituted will usually have at least one organic substituent, which may be the same or different as to the individual monomers, there usually being a total of not more than about 4 different groups, the substituent being unsubstituted or more usually having at least one polar group, particularly an oxy group on a side chain.
- these compounds will be of relatively low molecular weight, generally being under about 800 Dal, more usually being under about 400 Dal. They will normally be aliphatic, particularly saturated aliphatic, i.e.
- alkyl of from 1 to 6, usually 2 to 6 carbon atoms, have at least 1 oxy group and may have up to 4 oxy groups, generally having from 1-3 oxy groups, more usually having from 1-3 hydroxy groups.
- R 5 WCOC(R) CH 2
- R 5 is hydrogen, a counterfort, e.g. alkali metal, ammonium, etc., an aliphatic group of from 1-8 carbon atoms, usually 1-6 carbon atoms, particularly alkyl, having from 1-5, usually 1-3 oxy groups, more usually hydroxy groups; the remaining symbols have been defined previously.
- a counterfort e.g. alkali metal, ammonium, etc.
- polymers may be prepared which have a single UV absorber class, particularly, UV-A.
- any of the UV-A absorbers may be used, preferably the dibenzoylmethylene UV-A absorbers.
- These absorbers may be polymerized with one of more acrylic acid monomers, particularly esters, more particularly oxy substituted esters, having from about 1 to 3, usually 1 to 2, oxy groups and of from 2 to 8, usually 2 to 6, carbon atoms.
- the mole ratio of UV absorbers to non-UV absorbers (the acrylic acid monomers) will be in the same range as provided for having two UV absorbers.
- These polymers may be used as sunscreens by themselves or may be combined with other polymeric compositions, particularly polymeric compositions according to the subject invention, or with non-polymeric s
- Monomers of interest are acrylic acid, methacrylic acid, and their hydrophilic and hydrophobic amides or esters, such as hydroxyethyl and hydroxypropyl amides and esters, and ethyl, propyl, butyl, pentyl and hexyl amides and esters.
- the oxy or amino substituent may be substituted with a 2-nitrovinyl group to provide the desired radiation absorbing characteristics.
- Compounds of interest include building blocks of g-aminobenzoic acid, p-methoxybenzoic acid, o-hydroxybenzoyl, p-dimethylaminobenzoic acid, p-aminobenzoyl, acetoxyhydroquinone, phenylenediamine, etc.
- Compounds of interest include N,N-dialkylamino, N-acryl or methacryl phenylenediamine, p_-acryloxy or methacryloxybenzoate alkyl ester, N-alkyl m-acrylamido- or methacrylamidobenzoate alkyl ester, p-benzoyloxyacrylanilide or -methacrylanilide, rj-acrylamido or -methacrylamidobenzoate methyl ester, o-acryloxy or -methacryloxy-dibenzoylmethane, g-acryloxy or -methacrylamidodibenzoylmethane, 4-acetoxy-l-acryloxy or -methacryloxybenzene, 2,4-dimethylamino-l-acryloxy or -methacryloxybenzene, N,N-bis-(3-acryloxy or methacryloxyphenyl) methylamine, rn-acryloxy or -meth
- any convenient cross-linking agent may be employed, which will usually be a bis-acryl, -methacryl or erythritol, where the linking group may be any convenient group.
- the linking group may be methylene, amino, particularly substituted amino, 1,2-dioxyethylene, oxyamino, diaminoethylene, 1,4-dioxybutylene, dialkylenephosphate ester, ⁇ , ⁇ '-xylylenediamino, etc.
- Polymers of particular interest comprise from about 20 to 60, usually 25 to 60 mol % acrylic acid.
- the mol ratio of the UV-B to UV-A monomers will generally be in the range of 50:50 to 98:2, preferably 60:40 to 95:5.
- the subject monomers may be prepared from commercially available intermediates in accordance with known ways. A substantial number of starting monomers are provided in the accompanying working exemplification, which may serve as models for the production of a variety of monomers coming within the subject invention.
- the polymerization may be carried out in accordance with conventional ways, using free radical catalysts at relatively mild temperatures and a solvent system to achieve emulsion or suspension in situ.
- free radical catalysts at relatively mild temperatures and a solvent system to achieve emulsion or suspension in situ.
- peroxy compounds, azo compounds, ultraviolet light, or the like may be used as a source of polymerization initiation at temperatures in the range of about 10 to 70° C for the polymerization.
- the polymerization will take place in the absence of oxygen, preferably under an inert atmosphere.
- the time for the polymerization will usually be at least an hour, usually at least 2 hours, and may extend to 24 hours or more, depending upon the conditions for the polymerization.
- a solvent may be used, e.g. an alkanol, particularly methanol, or a hydrocarbon, such as toluene, or the like, in which the various monomers are soluble.
- the solvent may be present in from about 0.2-10:1 weight ratio to the monomer charge.
- the acrylic acid derivative may serve as a solvent, and an inhomogeneous system containing water may be employed After completion of the polymerization, the polymer may be isolated in accordance with conventional ways, and purified as appropriate.
- the product as formed will generally be small particles in the range of about 1 - 5 ⁇ . While these particles may be used in the sunscreen formulation, normally they will be further ground so that at least about 90 weight % of the particulate product has a diameter of less than about 1 ⁇ , where 80 weight % or more may be less than about 0.75 ⁇ in diameter.
- the subject polymers may be readily formulated with appropriate vehicles to provide the desired composition.
- the subject polymers are formulated in creams, lotions, salves, and the like, to produce an adherent smooth invisible film and to partially diffract the UV and infrared radiation.
- emollients are taught in the literature and include silicone, mineral and vegetable oils, petrolatum (purified petroleum hydrocarbon greases), and the like.
- the polymeric product may be milled, ground or otherwise reduced in particle size in the presence of an oil, conveniently physiologically tocopherol, e.g. ⁇ -tocopherol, and/or its derivatives, e.g. esters, or a hydrocarbon oil.
- additives such as other microparticles of other polymers, such as partially hydrolyzed polyacrylamides or ultrafine titanium or zinc oxides or ascorbic acid and its derivatives, although the latter do not absorb but only partially diffract or reflect UV light.
- the mixture may be further ground to provide a uniform mixture of microparticles.
- the subject polymers may be readily formulated in combination with a carrier composition which comprises a tocopherol, including ⁇ -tocopherol, the tocopheryl esters, or any other functional analog or derivative thereof (for numerous well known tocopherol derivatives see, for example, U.S. Patent Nos. 2,680,749, 5,686,632, 5,703,252 and 5,709,847), a mineral oil, a vegetable oil and/or a silicone oil.
- the carrier composition comprises a tocopherol or a functional analog or derivative thereof which provides for a sunscreen formulation that becomes invisible after application to the skin and is not oily.
- the amount of the tocopherol or analog or derivative thereof, vegetable oil or mineral oil added to the subject formulations may vary considerably to provide an acceptable formulation, wherein those amounts may be determined empirically in a routine manner.
- the formulations may also comprise, for example, ascorbic acid (Vitamin C) or derivatives thereof, calendula oil, lanolin, coconut oil, petrolatum, silicone cosmetic wax, and/or oxides selected from the group consisting of zinc oxide or titanium oxide. Again, it is well within the skill level in the art to determine empirically the amount of each of these components to achieve an acceptable formulation.
- the polymers of the subject invention will be present in the formulation in at least about 5 weight percent and not more than about 70 weight percent, usually ranging from about 10-50 weight percent.
- the dermatological formulation may be coated, sprayed, spread or otherwise applied to the particular surface, e.g., skin, as required and will be retained at the surface for extended periods of time.
- the formulations will be substantially invisible on the skin meaning that after application to the skin, the formulations will exhibit (or will eventually exhibit) a level of opacity that is not readily detected by the human eye.
- Example 7 Amidation of 4-dimethylaminobenzoyl chloride with ethanolamine 4-Dimethylaminobenzoyl chloride (1.24 g, 6.75 mmoles) was dissolved in 15 ml THF and added to a stirred solution of ethanolamine (0.865 g, 14.17 mmoles) in 6 ml THF at -5 °C. After 20 min at 20-25 ° C, THF was removed and the solids stirred with 15 ml water for 25 min. The solid was filtered, washed with water and vacuum dried to 1.13 g, then was crystallized from N-propanol yielding 0.92 g solid (65%).
- 4-Dimethylaminobenzoyl chloride (216 g, 1.18 moles) was suspended in 500 ml of ethyl acetate.
- 2-Hydroxyethyl methacrylate (169 g, 1.30 moles) was dissolved in 500 ml ethyl acetate and 165 ml triethylamine (119 g, 1.18 moles) and added to the acid while stirring. After the completion, more ethyl acetate was added and extracted with dilute sodium bicarbonate. Ethyl acetate was evaporated. Crystallization from ethanol gave 188.9 g (58%).
- Example 10 Esterification of 4-hydroxydibenzoyl methane with methacryloyl chloride 4-Hydroxydibenzoyl methane (1.97 g, 8.2 mmol) was dissolved in 15 ml of ethyl acetate and 1.25 ml of triethylamine (0.91 g, 8.98 mmol). Methacryloyl chloride (0.98 g, 9.4 mmol) was dissolved in 5 ml of ethyl acetate and added dropwise with stirring. Triethylamine hydrochloride was removed by extraction and ethyl acetate by evaporation. Crystallization from ethanol yielded 1.65 g of product (65%).
- Example 14 Acylation of p-hydroxymethacrylanilide with p-anisoyl chloride p-Hydroxymethacrylanilide (20.0 g, 113 mmol) was suspended in 250 ml ethyl acetate and
- N-2-hydroxyethyl acrylamide (5.00 g, 43.4 mmol) was dissolved in 35.0 ml ethyl acetate and triethylamine (4.83 g, 47.7 mmol).
- p-Anisoyl chloride (7.40 g, 43.4 mmol) was added at 5°C over ten minutes. After 24 hours at RT, the solid was filtered and washed with water (3 x 25 ml), followed by saturated bicarbonate solution (3 x 25 ml), and drying to give a solid 9.36 g (93.6%).
- Example 18 Alkylation of hydroxyethylmethacrylate with 4-methoxycinnamyl methanesulfonate
- Example 20 Polymerization of a UV-A monomer, a UV-B monomer, and a UV-C monomer
- UV-A monomer 4-methacryloxydibenzoyl methane 29.04 g (0.1 moles)
- UV-B monomer N-[2-(4 , -dimethylaminobenzoyl)oxypropyl] methacrylamide
- UV-C monomer 4-methoxy-N-[l-(4-methacryloxyphenyl)] benzamide 9.76 g (0.075 moles) 2-hydroxyethylmethacrylate, 1.73 g (0.01125 moles) N,N-methylene bisacrylamide, and 500 ml methanol.
- Example 21 Preparation of a UV-A and UV-B Absorbing Polymer with low HEMA content
- Example 22 Preparation of a UV-A Absorbing Polymer with low HEMA content
- the formed polymer was filtered, washed with methanol, vacuum dired to a mass of 122.8 g, and then washed with isopropanol (2 x 100 ml), filtered and dried at 60° C to give an analytically uniform product of 116.7 g, which was ground in a ball-grinder for 120 minutes to produce a powder with particles in the range of 1 micron.
- Example 23 Preparation of a UV-A and UV-B Absorbing Polymer with low HEMA content
- Example 24 Preparation of a UV-A and UV-B Absorbing Polymer with low HEMA content
- a 2 L flask was charged with 47.18 g (0.172 moles) of UV-B monomer 2-propenoic acid, 2-methyl-,2-[[3-(4-methyoxy phenyl)-2-propenyl]oxy] ethyl ether, and the commercially obtained UV-A monomer 2-(2'-hydroxy-5'-[2"-methacryloxyethyl]phenyl)-2H-benzotriazole, 20 g (0.062 moles), 25 g (0.192 moles) of 2-hydroxyethyl methacrylate, 5.15 g (0.0026 moles) ethyleneglycol dimethacrylate and 1 L methanol.
- Example 25 Polymerization of UV-A absorbing polymer with HEMA
- Example 25 Formulation of a Sunscreen Cream
- Example 26 Formulation of a Sunscreen Cream Into a ball-grinder 1.38 grams of lanolin, 300mg of Vitamin E acetate, 1.476g of copra oil, 180mg of silicone wax (Dow Corning 2503) and 180mg of white petrolatum were added together with 1.24g of the polymer prepared as described in Example 22, 1.2 g of the commerically available octyl methoxycinnamate, and 120mg of titanium dioxide. All ingredients were mixed and groud at room termperature for 90 minutes to produce a cream. When applied to the skin, the cream film takes a grayish-white color which becomes transparent over about 15 to 20 minutes. Since the particles are in the range of 1 micron in size, transfer into the skin and underlying strata is prevented.
- novel compositions which give skin protection from erythema, carcinogenicity and other deleterious effects of ultraviolet radiation, while being biologically inert and invisible.
- the compositions have good retentive capability, provide a smooth coating on the skin, and do not penetrate into the dermal layer, where the currently used aromatic light absorbing moieties could have adverse effects.
- the novel compositions are both inert and invisible.
- the compositions may be readily prepared from readily available compounds in accordance with conventional ways.
- novel compositions are purified which are biologically and optically integral covalent parts of the lens to protect the eve from UV radiation, while the compositions are also biologically inert.
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1999/017350 WO2001008647A1 (en) | 1998-07-21 | 1999-07-29 | Sunblocking polymers and their novel formulations |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1198220A1 true EP1198220A1 (en) | 2002-04-24 |
Family
ID=22273304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP99937690A Withdrawn EP1198220A1 (en) | 1999-07-29 | 1999-07-29 | Sunblocking polymers and their novel formulations |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1198220A1 (en) |
AU (1) | AU5247399A (en) |
ES (1) | ES2173831T1 (en) |
WO (1) | WO2001008647A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003081910A (en) * | 2001-09-11 | 2003-03-19 | Chemiprokasei Kaisha Ltd | Dibenzoylmethane derivative, method for producing the same and use thereof |
JP2006519227A (en) * | 2003-02-26 | 2006-08-24 | フジ フォト フィルム ビー.ブイ. | Cosmetic UV screen composition and amino-butadiene based UV-absorbing composite therefor |
DE102005024967A1 (en) * | 2005-05-30 | 2006-12-07 | Beiersdorf Ag | Polypeptide-bound UV light protection filters in cosmetic preparations |
JP2010539230A (en) | 2007-09-18 | 2010-12-16 | フジフィルム マニュファクチャリング ユーロプ ビー.ブイ. | UV absorbing compounds |
EP2140859A1 (en) * | 2008-06-30 | 2010-01-06 | Johnson & Johnson Consumer Companies, Inc. | Compositions comprising an ultraviolet radiation-absorbing polymer |
US8003132B2 (en) | 2008-06-30 | 2011-08-23 | Johnson & Johnson Consumer Companies, Inc. | Compositions comprising an ultraviolet radiation-absorbing polymer |
US8475774B2 (en) | 2010-02-08 | 2013-07-02 | Johnson & Johnson Consumer Companies, Inc. | Sunscreen compositions comprising an ultraviolet radiation-absorbing polymer |
US9255180B2 (en) | 2012-06-28 | 2016-02-09 | Johnson & Johnson Consumer Inc. | Ultraviolet radiation absorbing polyethers |
BR112014032868B8 (en) | 2012-06-28 | 2022-08-16 | Chenango Two Llc | COMPOSITION |
US10874603B2 (en) | 2014-05-12 | 2020-12-29 | Johnson & Johnson Consumer Inc. | Sunscreen compositions containing a UV-absorbing polyglycerol and a non-UV-absorbing polyglycerol |
US10596087B2 (en) | 2016-10-05 | 2020-03-24 | Johnson & Johnson Consumer Inc. | Ultraviolet radiation absorbing polymer composition |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2597336B1 (en) * | 1986-01-10 | 1988-12-09 | Oreal | NOVEL COMPOSITIONS OF POLYMERS DERIVED FROM ACRYLAMIDE SUBSTITUTED BY COMPOUNDS ABSORBING ULTRAVIOLET RADIATIONS, AND THEIR APPLICATION IN PARTICULAR IN THE PRODUCTION OF COSMETIC COMPOSITIONS FOR PROTECTING THE SKIN AGAINST THE SIDE EFFECTS OF ULTRAVIOLET RADIATION. |
LU86937A1 (en) * | 1987-07-03 | 1989-03-08 | Oreal | NOVEL UNSATURATED UV-ABSORBING CHROMOPHORE COMPOUNDS, THEIR PREPARATION AND THEIR USE FOR THE PRODUCTION OF ANTI-SOLAR POLYMERS |
US5487885A (en) * | 1992-12-21 | 1996-01-30 | Biophysica, Inc. | Sunblocking polymers and their formulation |
-
1999
- 1999-07-29 ES ES99937690T patent/ES2173831T1/en active Pending
- 1999-07-29 WO PCT/US1999/017350 patent/WO2001008647A1/en not_active Application Discontinuation
- 1999-07-29 AU AU52473/99A patent/AU5247399A/en not_active Abandoned
- 1999-07-29 EP EP99937690A patent/EP1198220A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
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See references of WO0108647A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU5247399A (en) | 2001-02-19 |
WO2001008647A1 (en) | 2001-02-08 |
ES2173831T1 (en) | 2002-11-01 |
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