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(12) United States Patent (10) Patent No.: US 9,717,673 B2 Gschwind Et Al

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(12) United States Patent (10) Patent No.: US 9,717,673 B2 Gschwind Et Al USOO9717673B2 (12) United States Patent (10) Patent No.: US 9,717,673 B2 Gschwind et al. (45) Date of Patent: Aug. 1, 2017 (54) SHAMPOO PREPARATIONS (52) U.S. Cl. CPC .............. A61K 8/8152 (2013.01); A61K 8/42 (71) Applicant: DSM IPASSETS B.V., Heerlen (NL) (2013.01); A61K 8/463 (2013.01); A61O 5/02 (2013.01); A61O5/06 (2013.01); A61 K (72) Inventors: Svenja Gschwind, Basel (CH); Dirk 2800/596 (2013.01) Weber, Basel (CH) (58) Field of Classification Search None (73) Assignee: DSM IPASSETS B.V., Heerlen (NL) See application file for complete search history. (*) Notice: Subject to any disclaimer, the term of this (56) References Cited patent is extended or adjusted under 35 U.S. PATENT DOCUMENTS U.S.C. 154(b) by 79 days. 5,413,775 A * 5/1995 Hatfield ................. A61K 8,046 (21) Appl. No.: 14/389,878 424/47 2002/01 19113 A1* 8, 2002 Ellis ......................... A61K 8/14 (22) PCT Filed: Mar. 25, 2013 424.70.22 (86). PCT No.: PCT/EP2013/05626O FOREIGN PATENT DOCUMENTS S 371 (c)(1), DE 43 14 305 11, 1994 EP O 805 169 11, 1997 (2) Date: Oct. 1, 2014 WO WO 2011/057882 * 5, 2011 ... CO8F 220, 18 WO WO 2011/O581.63 5, 2011 (87) PCT Pub. No.: WO2013/149873 WO WO 2012 O72774 6, 2012 PCT Pub. Date: Oct. 10, 2013 OTHER PUBLICATIONS (65) Prior Publication Data International Search Report for PCT/EP2013/056260, mailed Feb. US 2015/0328.126 A1 Nov. 19, 2015 17, 2014. (30) Foreign Application Priority Data * cited by examiner Apr. 2, 2012 (EP) ..................................... 12162881 Primary Examiner — Jake Vu (74) Attorney, Agent, or Firm — Nixon & Vanderhye P.C. (51) Int. Cl. (57) ABSTRACT A6 IK 8/88/72 (2006.01) The invention relates to shampoo preparations comprising A6 IK 8/46 (2006.01) water, an acrylic emulsion polymer and at least one surfac A6 IK 8/42 (2006.015 tant. The preparations provide improved styling perfor A61O 5/02 (2006.015 mance and improved hair feel. A61O 5/06 (2006.01) 9 Claims, No Drawings US 9,717,673 B2 1. 2 SHAMIPOO PREPARATIONS range of 1-25 wt.-%. Such as most preferably in the range of 5 to 20 wt.-%, based on the total weight of the shampoo This application is the U.S. national phase of International preparation. Application No. PCT/EP2013/056260 filed 25 Mar. 2013 Preferably at least one anionic surfactant is present in the which designated the U.S. and claims priority to EP Patent 5 shampoo preparation according to the present invention. Application No. 12162881.2 filed 2 Apr. 2012, the entire Examples of Suitable anionic Surfactants are the alkyl contents of each of which are hereby incorporated by Sulfates, alkyl ether Sulfates, alkylaryl Sulphonates, alkanoyl reference. isothionates, alkyl Succinates, alkyl Sulphosuccinates, alkyl The invention relates to shampoo preparations comprising ether Sulphosuccinates, N-alkyl sarcosinates, alkyl phos water, an acrylic emulsion polymer and at least one surfac 10 tant. The preparations provide improved styling perfor phates, alkyl ether phosphates, and alkyl ether carboxylic mance and improved hair feel. acids and salts thereof, especially their sodium, magnesium, Many hair shampoo preparations provide acceptable ammonium or mono-, di- or triethanolamine salts. The alkyl cleaning but provide little or no styling benefits, e.g. body, and acyl groups generally contain from 8 to 18, preferably hold, stiffness. To realize Such benefits, separate cleaning 15 from 10 to 16, carbon atoms and may be unsaturated. The and styling products are often used. alkyl ether sulfates, alkyl ether sulphosuccinates, alkyl ether Thus, there is an ongoing need for shampoo preparations phosphates and alkyl ether carboxylic acids and salts thereof which provide next to a good cleaning performance also may contain from 1 to 20 ethylene oxide or propylene oxide good styling attributes to the hair without making the hair units per molecule. dull, sticky and stiff but leave the dry hair both feeling and In particular, the anionic Surfactants are selected from looking natural and Soft. Furthermore, the shampoo prepa Sodium oleyl Succinate, ammonium lauryl Sulphosuccinate, ration should preferably exhibit good foaming properties. sodium lauryl sulfate, sodium lauryl ether sulfate (also Surprisingly it has been found, that shampoo preparations known as sodium laureth sulfate, SLES), sodium lauryl ether comprising water, a specific acrylic emulsion polymer and at Sulphosuccinate, ammonium lauryl Sulfate (ALS), ammo least one surfactant provide good styling attributes to the 25 nium lauryl ether Sulfate (ammonium laureth Sulfate), hair without resulting in an unacceptable hair feel. It has Sodium dodecylbenzene Sulphonate, triethanolamine dode furthermore been found that good foaming properties can be cylbenzene Sulphonate, sodium cocoyl isethionate, sodium achieved, if the acrylic emulsion polymer is neutralized to a lauryl isethionate, lauryl ether carboxylic acid and sodium degree of at least 50%. N-lauryl sarcosinate or mixtures thereof. Preferred anionic Thus, in one embodiment the invention relates to a 30 Surfactants are sodium lauryl Sulfate, sodium lauryl ether shampoo preparation comprising water, at least one surfac sulfate (n) EO, (where n is from 1 to 4, in particular n is 3), tant and an effective amount of an acrylic emulsion polymer sodium lauryl ether sulphosuccinate (n) EO, (where n is obtained by emulsion polymerization of a monomer com from 1 to 4, in particular n is 3), ammonium lauryl Sulfate, position consisting of a mixture of methacrylic acid, ethyl ammonium lauryl ether sulfate (n) EO, (where n is from 1 acrylate and n-butyl methacrylate. 35 to 4, in particular n is 3) or mixtures thereof. The term shampoo preparations relates to any liquid or In all embodiments of the present invention the anionic cream preparations of Soap or detergent used to wash the surfactant is preferably selected from sodium lauryl sulfate, hair and scalp. ammonium lauryl Sulfate, Sodium lauryl ether Sulfate, The term consisting of as used according to the present ammonium lauryl ether Sulfate, Sodium lauroyl sarconisate, invention means that the total amount of monomer ideally 40 Sodium oleylsuccinate, ammonium lauryl SulfoSuccinate, sum up to 100 wt.-%. It is however not excluded that small sodium dodecylbenzol sulfonate and/or triethanolamine amount of impurities or additives may be present such as e.g. dodecylbenzol sulfonate or mixtures thereof. Most prefer in amounts of less than 5 wt.-%, preferably less than 3 wt.-% ably in all embodiments of the invention the anionic sur which are e.g. introduced via the respective raw materials. factant is selected from Sodium lauryl Sulfate, ammonium The term “effective amount’ means an amount that can 45 lauryl Sulfate, sodium lauryl ether Sulfate (also known as achieve the stated results. In particular, the term “effective Sodium Laureth Sulfate) and/or ammonium lauryl ether amount refers to a concentration (based on Solids) of at sulfate. Particularly preferred in all embodiments of the least 0.01 wt.-% based on the total weight of the shampoo invention is the use sodium lauryl ether Sulfate e.g. available preparation. Preferably, a concentration of 0.01-20 wt.-%, as Texapon(R) NSO-B at Caelo. most preferred of 0.1-15 wt.-%, in particular in the range of 50 The total amount of the anionic surfactant(s) in the 1 to 10 wt.-% such most in particular in the range of 1 to 7 shampoo preparations according to the present invention is wt.-% of the acrylic emulsion polymer is used. preferably selected in the range of 0.1 to 25 wt.-%, more In all embodiments of the invention the monomer com preferably in the range of 5 to 20 wt.-%, most preferably in position preferably consists of a mixture of 10-30 wt.-% of the range of 2 to 15 wt.-%, based on the total weight of the methacrylic acid, 5-15 wt.-% of ethyl acrylate and 60-80 55 shampoo preparation. wt.-% of n-butyl methacrylate, more preferably of a mixture In all embodiments of the invention the weight-ratio of of 10-30 wt.-% of methacrylic acid, 5-15 wt.-% of ethyl the anionic Surfactant to the acrylic emulsion polymer is acrylate and 60-80 wt.-% of n-butyl methacrylate, most preferably in the range of 5:1 to 0.3:1, in particular 3:1 to preferably of a mixture of 15-25 wt.-% of methacrylic acid, O.5:1. 8-12 wt.-% of ethyl acrylate and 65-75 wt.-% of n-butyl 60 In a particular preferred embodiment the invention relates methacrylate, such as even more in particular of 18-23 to a shampoo preparation wherein the anionic Surfactant is wt.-% of methacrylic acid, 9-11 wt.-% of ethyl acrylate and selected from sodium lauryl Sulfate, ammonium lauryl Sul 67-72 wt.-% of n-butyl methacrylate. fate, Sodium lauryl ether Sulfate and/or ammonium lauryl The total amount of Surfactant(s) (including any co ether sulfate and the ratio of the anionic surfactant to the Surfactant(s), and/or emulsifier(s)) in the shampoo prepara 65 acrylic emulsion polymer is selected in the range of about 5 tion according to the present invention is preferably selected to 1 to 0.3 to 1, such as in particular in the range of 3 to 1 in the range of 0.1-40 wt.-%, such as more preferably in the to 0.5 to 1. US 9,717,673 B2 3 4 The acrylic emulsion polymers according to the invention The initiators are usually used in amounts up to 10% by are prepared by emulsion polymerization methods according weight, preferably 0.02 to 5% by weight, based on the to known methods as e.g. described in EP10193512.0. monomers to be polymerized.
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