United States Patent (19) 11 4,374,125 Newell 45) Feb
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United States Patent (19) 11 4,374,125 Newell 45) Feb. 15, 1983 (54) HAIRMOISTURIZING COMPOSITIONS 49-27643 7/1974 Japan ..................................... 424/70 51-20639 6/1976 Japan ..................................... 424/70 75) Inventor: Gerald P. Newell, Hanover Park, Ill. 76-04794 ll/1976 Netherlands ........................ 424/70 73 Assignee: Helene Curtis Industries, Inc., Chicago, Ill. OTHER PUBLICATIONS Drug & Cosmetic Industry, 84(4) at p. 440(t), (1960), (21) Appl. No.: 912,360 Thomsen. (22 Filed: Jun. 5, 1978 Amer. Perfumer and Cosmetics, 78(10), pp. 69-72, (51) Int. Cl......................... A61K 7/06; A61K 47/00 (1963), Burnett, Proteins in Cosmetics. 52 U.S. C. ...................................... 424/70; 424/359; Primary Examiner-Douglas W. Robinson 424/362; 424/365 Attorney, Agent, or Firm-Dressler, Goldsmith, Shore, 58 Field of Search ................... 424/DIG. 2, 70, 362, Sutker & Milnamow, Ltd. 424/365, 359 57 ABSTRACT (56) References Cited An aqueous hair treatment composition for restoring U.S. PATENT DOCUMENTS the proper moisture level in initially moisture deficient 3,235,457 2/1966 Laden .................................... 424/65 hair and maintaining the proper moisture level in hair 3,450,674 6/1969 Walles ..... ... 425/71 initially having a normal moisture content comprising 3,683,939 8/1972 Johnsen ... ... 424/70 from about 0.01 to about 1 weight percent of sodium-2- 3,822,312 7/1974 Sato et al. ............................. 424/70 pyrrolidone-5-carboxylate, from about 0.05 to about 5 3,948,943 4/1976 Eberhardt et al. ................... 424/65 weight percent of glycerin, and from about 0.05 to 4,076,800 2/1978 Marsh et al. .......................... 424/70 about 5.0 weight percent of protein derived from a FOREIGN PATENT DOCUMENTS collagenous source. 44-22440 9/1969 Japan . 9 Claims, No Drawings 4,374,125 1. 2 compositions of this invention may additionally com HAR MOSTURIZING COMPOSITIONS prise quaternary conditioners, detergents, thickeners, fatty esters, other known quaternary conditioning BACKGROUND OF THE INVENTION agents, fragrance solubilizers, etc. This invention relates to compositions for applica The compositions of this invention are used in con tions to hair and more specifically relates to composi cert with each other in a prescribed manner to achieve tions for restoring a normal moisture level in hair ini the desired end result as discussed hereinbelow. tially having a moisture deficiency and maintaining the DETAILED DESCRIPTION OF THE normal moisture level in hair initially having a normal PREFERRED EMBODIMENTS moisture content. O The use of hair coloring or bleaching products, per The hair moisturizing compositions of this invention manents, straighteners, blowdryers and exposure to sun, comprise an aqueous dispersion containing from about wind, indoor heating, etc. are all drying and damage the 0.01 to about 1.0 weight percent, preferably from about hair by robbing it of moisture. Moisture deficient hair is 0.05 to about 0.5 weight percent of sodium-2-pyrroli dull, brittle and lifeless. 15 done-5-carboxylate; from about 0.01 to about 5.0 weight A number of products have been developed in recent percent, preferably from about 0.1 to about 2.0 weight years to improve the condition of hair. While many of percent of glycerin and from about 0.01 to about 5.0 the available hair-conditioning compositions improve weight percent, preferably from about 0.1 to about 2.0 the sheen, combability and manageability of hair, they weight percent of protein derived from a collagenous do little to restore and maintain the normal moisture 20 SOC content of hair. Thus, there is a need for improved In order to determine whether hair has a normal products which can restore and maintain the normal moisture content, the hair to be tested is dried out in a content of hair as well as condition it to improve its vacuum oven and accurately weighed. The hair is then sheen, combability and the like. The present invention allowed to equilibrate at ambient room humidity and provides such compositions. 25 reweighed accurately. The increased weight is due to Laden U.S. Pat. No. 3,235,457, issued Feb. 15, 1966, moisture pickup. The percent of moisture remaining is discloses the use of the free acid or the hygroscopic salts of 2-pyrrollidone-5-carboxylic acid, 1-methyl-2-pyrroli then calculated as follows: done-5-carboxylic acid and 4-methyl-2-pyrrolidone-5- 30 Wt. of hair at a given room humidity - carboxylic acid as humectants in cosmetic compositions Wt, of dry hair which are to be applied to hair or skin. Laden discloses Wt. of dry hair x 100 - 2, incorporating the humectants into the cosmetics and other compositions to prevent the products from losing Hair having an average of 6.3 weight percent mois moisture and drying out in storage. Laden further ture gain is considered as hair having a normal moisture teaches that the humectants must be present in an 35 content. Hair having a 5.6 average weight percent mois amount of at least 2 weight percent of such composi ture gain is considered to be moderately moisture defi tions, and preferably from 4 to 10 weight percent. Glyc cient hair and hair having an average moisture content erin is also known to be a humectant. of about 5% or lower is considered as hair having an It has now surprisingly been found that when from extreme or severe moisture deficiency. about 0.01 to about 1 weight percent of sodium-2-pyr 40 rolidone-5-carboxylate is incorporated into hair treat Depending upon whether the compositions of this ment compositions such as shampoos, conditioners, and invention are formulated as shampoos or as various the like, along with glycerin and protein derived from a types of conditioners or setting lotions for initially nor collagenous source, the moisture level can be restored mal, moderately moisture deficient or severely moisture to moisture deficient hair, and normal moisture content 45 deficient hair, the compositions of this invention can can be maintained in normal hair. include other ingredients which are generally used in Thus, the present invention provides improved hair the particular type of compositions. Thus, for example, compositions which are adapted to restore the normal if the composition is formulated as a shampoo, it can moisture content to initially moisture deficient hair and include from about 5 to about 50% weight percent of a maintain normal moisture levels in hair initially having 50 suitable detergent such as sodium lauryl sulfate or a a normal moisture content. sodium lauryl sulfate containing detergent, i.e., Dynol SAM sold by Richardson Co. alone or together with an SUMMARY OF THE INVENTION amphoteric surface active agent such as the mono The compositions of this invention can be shampoos, sodium salt of N-lauryliminodipropionic acid, i.e. Deri conditioners, blow-drying lotions, hair sprays and the 55 phat 160C sold by General Mills, which can be present like which are adapted to restore the normal moisture in the shampoo in an amount of from about 0.05 to 10 content to hair initially having a slight to severe mois weight percent, preferably 0.1 to about 5 weight per ture deficiency and maintaining normal moisture con cent of the shampoo, and a nonionic detergent such as a tent in hair initially having a normal moisture level. The coconut diethanolamide, i.e. Ninol 2012 sold by Stepan compositions comprise from about 0.01 to about 1.0 Chemical Company. In addition, the shampoo composi weight percent of sodium-2-pyrrolidone-5-carboxylate, tions of this invention can include foam boosters and from about 0.05 to about 5.0 weight percent of glycerin stabilizers such as lauryl dimethylamine oxide, i.e. AM and from about 0.05 to about 5.0 weight percent of MONYX-LO sold by Onyx Chemicals, which can be protein derived from collagenous sources. Additionally, present in an amount of from about 1 to 15 weight per the compositions include the normal or usual ingredi 65 cent, preferably from about 2 to 10 weight percent of ents of such compositions. the composition. The shampoos can also include chelat Thus, in addition to unique combination of sodium-2- ing agents such as ethylenediaminetetraacetic acid pyrrolidone-5-carboxylate, glycerin and protein, the (EDTA) and preservatives such as Methyl Parasept 4,374,125 3 4. sold by Tenneco Chemical Company, glutaraldehyde, nized with trimethylamine i.e., Polymer JR 400 sold by monomethyloldimethyl hydantoin and the like. The Union Carbide Corporation and an anti-static condi shampoo formulations can also include perfuming tioner with 5 percent propylene glycol as a stabilizer agents, coloring agents and the like. such as oleyldimethyl benzyl ammonium chloride, sold The conditioning compositions of this invention can under the tradename AMMONYX KP, by Onyx Chem include, in addition to the sodium-2-pyrrolidone-5-car icals. The thermal styling lotion can additionally in boxylate, glycerin and protein, conditioners such as clude perfuming agents and the like. alkylmethyl bis (polyoxyethylene) quaternary ammo In the case of hair having initially slight to severe nium salt, i.e., Ethoguad 0/12 sold by Armak Chemical moisture deficiency, a supplemental gel conditioner is Company, which can be present in an amount of from 10 provided which is applied from one to three times a about 0.5 to about 5 weight percent, preferably from week or more nightly to further condition and restore about 2 to about 4 weight percent; a cationic surface the normal moisture content to moisture deficient hair. active agent such as cetyltrimethyl ammonium chloride Such supplemental gel conditioners can contain, in ad (29% active solution) sold under the trademark Barquat dition to the protein and two humectants, from about CT-429 sold by Lonza, Inc.; stearic acid, which can be 15 0.1 to about 2.0 weight percent of a water soluble high present in an amount of from about 0.5 to about 3 molecular weight carboxyvinyl polymer, i.e., Carbopol weight percent, preferably 1.0 to 2.0 weight percent; 940 sold by B.