US007851423B2 (12) United States Patent (10) Patent No.: US 7,851,423 B2 Ruppert et al. (45) Date of Patent: Dec. 14, 2010 (54) POST-FOAMING CLEANSING PRODUCT (58) Field of Classification Search ................. 510/120, WITH MOLECULAR OXYGEN 510/135, 140, 155, 158,475,505; 424/401, 424/70.11, 70.21, 70.22, 70.31 (75) Inventors: Stephan Ruppert, Hamburg (DE); See application file for complete search history. Thomas Blatt, Wedel (DE); (56) References Cited Christopher Mummert, Bienenbiettel (DE); Ludger Kolbe, Dohren (DE); U.S. PATENT DOCUMENTS Anja Aechtner, Mannheim (DE) 4.405489 A 9, 1983 Sisbarro 4,772,427 A 9, 1988 Dawson et al. (73) Assignee: Beiersdorf AG, Hamburg (DE) 2004/0022839 A1 2/2004 Barnikol 2004/0241105 A1 12/2004 Riedel et al. (*) Notice: Subject to any disclaimer, the term of this 2005/OO74471 A1 4/2005 Bleckmann et al. patent is extended or adjusted under 35 2007/0031348 A1 2/2007 Staeb et al. ................... 424/47 U.S.C. 154(b) by 0 days. FOREIGN PATENT DOCUMENTS (21) Appl. No.: 12/373,980 DE 101 13 048 A1 9, 2002 WO O2/O5754 A2 1, 2002 (22) PCT Filed: Jun. 25, 2007 WO 03/022238 A1 3, 2003 WO 2005/027869 A1 3, 2005 (86). PCT No.: PCT/EP2007/056314 WO WO 2005/027869 * 3/2005 OTHER PUBLICATIONS S371 (c)(1), (2), (4) Date: Apr. 8, 2009 Stanzl K. et al., “The effectiveness of molecular oxygen in cosmetic formulations'. International Journal of Cosmetic Science, 18, pp. (87) PCT Pub. No.: WO2008/009539 137-150 (1996). PCT Pub. Date: Jan. 24, 2008 * cited by examiner Primary Examiner Brian PMruk (65) Prior Publication Data (74) Attorney, Agent, or Firm Greenblum and Bernstein, US 2009/0247444 A1 Oct. 1, 2009 P.L.C. (30) Foreign Application Priority Data (57) ABSTRACT Jul. 19, 2006 (DE) ....................... 10 2006 033 797 Post-foaming cosmetic cleansing preparation on an aqueous basis which is Suitable for dispensing from an aerosol con (51) Int. Cl. tainer, containing in a conventional aqueous base preparation CILD LA04 (2006.01) a) detersive surfactants with saturated radicals, preferably CILD LADO (2006.01) anionic Surfactants and non-ionic Surfactants and/or ampho CID 3/20 (2006.01) teric surfactants, b) 2.5 to 25% by volume, preferably 5 to CID 3/37 (2006.01) 20% by volume, particularly preferably 7.5 to 15% by volume (52) U.S. Cl. ....................... 510/120; 510/135; 510/140; of pure oxygen. 510/155; 510/158; 510/475; 510/505; 424/401; 424/70.11; 424/70.21; 424/70.22; 424/70.31 15 Claims, No Drawings US 7,851,423 B2 1. 2 POST FOAMING CLEANSING PRODUCT tions do not necessarily have to have the appearance of a foam WITH MOLECULAR OXYGEN macroscopically. (Foamed) cosmetic preparations according to the invention (for the sake of simplicity also referred to BACKGROUND OF THE INVENTION below as foams) can represent, e.g., macroscopically visible dispersed systems of gases which are dispersed in liquids. 1. Field of the Invention However, the foam character may also be visible, for The invention relates to a post-foaming cosmetic cleansing example, only under a (light) microscope. Furthermore, post product with molecular oxygen, in particular shower gel or foaming preparations according to the invention in particu hand-soap gels but also bath concentrates for dispensing from lar when the gas bubbles are too small to be recognized under an aerosol container and face cleansing gels. 10 a light microscope—are also recognizable by the large 2. Discussion of Background Information increase in Volume of the system. Cosmetic and dermatological cleansing formulations are The use of oxygen in cosmetic or dermatological prepara known that are packed in compressed gas containers and tions for the prophylaxis and treatment of skin aging phenom which foam automatically after application. These formula ena, for example, wrinkles and lines, slackening of the skin tions comprise a low-viscosity, Surfactant-containing cleans 15 and tissue, disturbances in skin regeneration, circulation dis ing Solution that is converted into a cleansing gel through orders of the skin, age spots and the like has recently been pressurization with high-volatile gases (DE-OS 3839349). described (WO 05/27869). However, all of the preparations Post-foaming cosmetic gels of this type are first applied to found there represent emulsions, which are unsuitable for the skin in a gel form from the aerosol container with the aid cleansing purposes. of a discharge means and only then develop the actual foam WO 02/05754 describes externally applicable preparations after a brief delay under the influence of the post-foaming that contain an oxygen carrier that is incorporated into a lipoid agent contained. The advantage of these compositions com emulsion in a molecularly disperse manner, and the use pared to the known finished cosmetic foams that are applied thereof for external treatment/prevention of oxygen defi to the skin from the aerosol container already foamed, lies in ciency conditions of the skin. However, oxygen carriers are a better wetting of the skin. A decisive disadvantage of these 25 expensive and the emulsions used are not suitable for cleans products is that the actual post-foaming process does not start ing purposes. until the consumer foams the product with his hands, because only then does the product clearly increase in Volume. SUMMARY OF THE INVENTION Through the time-delayed post-foaming process, an adequate dosage of the cleansing product for the consumer is virtually 30 The present invention provides a water-based cosmetic impossible, and he sometimes removes too much, sometimes cleansing product. The product is post-foaming and Suitable too little product. for dispensing from an aerosol container and comprises in an Post-foaming cosmetic gels are known in principle. U.S. aqueous base preparation: Pat. No. 3,541, cites as essential constituents of a composition (a) one or more detergent Surfactants which comprise Satu of this type water, soap (i.e., water-soluble salts of higher fatty 35 rated groups, and acids), gelling agents and after-foaming agents. (b) from 2.5% to 25% by volume of pure oxygen. It is furthermore expedient, but not absolutely essential to In one aspect of the product, the one or more detergent add cosmetic active ingredients and auxiliary agents. It has Surfactants may be selected from one or more of anionic also been proposed (U.S. Pat. No. 4,405,489) to omitagelling Surfactants, non-ionic Surfactants, and amphoteric Surfac agent, but in this case a special and complex process is nec 40 tantS. essary for the production and filling of compositions of this In another aspect, the product may comprise from 5% to type. 20% by volume, e.g., from 7.5% to 15% by volume of pure However, the described post-foaming cosmetic gel prepa OXygen. rations have decisive disadvantages, in particular in produc In yet another aspect, the product may further comprise at tion: aliphatic hydrocarbons are used as post-foaming agents, 45 least one gelling agent. Further, the at least one gelling agent preferably n-butane, pentane and hexane. These compounds may be cross-linked. For example, the at least one gelling are combustible and form explosive mixtures with air. There agent may comprise at least one of acrylates copolymer, fore, an increased expenditure for explosion protection and carbomer, and acrylates/C10-30 alkyl acrylate crosspolymer. similar safety measures is necessary in production. In a still further aspect, the product may be free from starch The object of the present invention was therefore to create 50 derivatives and/or free from volatile and/or non-volatile a post-foaming cosmetic gel preparation meeting the require hydrocarbons and/or free from unsaturated Surfactants and/or ments from practice, which contains a compound which is not free from cationic Surfactants. explosive in mixture with air as a post-foaming agent and thus The present invention also provides a product which is renders possible a less problematic and at the same time also obtained by expanding the cleansing product of the present more cost-effective production. 55 invention as set forth above (including the various aspects The object of the invention was also to provide further thereof). post-foaming cosmetic products on the basis of the post The present invention also provides a cosmetic cleansing foaming gel preparation according to the invention, for product which comprises a packaging that comprises an inner example, a post-foaming gel for skin care or for skin cleans deformable and Substantially oxygen-tight container and an ing. 60 outer substantially rigid container which is capable of with “Self-foaming. “foam-like.” “post-foaming or “foam standing internal pressure. The inner container contains the able' mean preparations from which foams can in principle cleansing product of the present invention as set forth above be produced—whether already during the production pro (including the various aspects thereof). Further, from 5% to cess, during application by the user, on in any other manner— 300% by volume, based on the total volume of the cleansing by the incorporation of one or more gases. In foams of this 65 product inside the inner container, of at least one gas selected type, the gas bubbles are present distributed (as desired) in from air, nitrogen, helium, argon, laughing gas, and carbon one (or more) liquid phase(s), wherein the (foamed) prepara dioxide is present between the inner container and the outer US 7,851,423 B2 3 4 container and under a pressure which is suitable for dispens Furthermore, it was possible to prove through experiments ing the cleansing product inside the inner container. on Suction blisters that the oxygen penetrates into the skin, In one aspect of the cleansing product, the at least one gas even if water is added, which always occurs during shower may comprise air.