| Process for inhibiting dyed hair fibers from losing their color during shampooing -> Monitor Keywords |
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Process for inhibiting dyed hair fibers from losing their color during shampooingRelated Patent Categories: Drug, Bio-affecting And Body Treating Compositions, Live Hair Or Scalp Treating Compositions (nontherapeutic)Process for inhibiting dyed hair fibers from losing their color during shampooing description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070110691, Process for inhibiting dyed hair fibers from losing their color during shampooing. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] The present invention relates to a process for inhibiting dyed hair fibers from losing their color during shampooing. The process involves contacting the hair fibers with a composition containing at least one polyamine compound having at least two amino groups and at least one anionic silicone. [0002] There are essentially two ways in which keratin fibers may be dyed: "permanent" dyeing and "semi-permanent" dyeing. [0003] The first, also known as oxidation dyeing, uses "oxidation" dye precursors, which are colorless or weakly colored compounds. Once mixed with oxidizing products, at the time of use, these precursors lead to colored compounds and dyes via a process of oxidative condensation. In this case, the colorations obtained are generally very colorfast and strong. [0004] The second, also known as direct dyeing, uses direct dyes, which are nonionic or ionic dyes and colored compounds capable of producing a more or less pronounced change of the natural color of the hair, resistant to shampoo-washing several times. These dyes may or may not be used in the presence of an oxidizing agent. [0005] In contrast with oxidation dye precursors, a direct dye is a relatively voluminous molecule that does not penetrate easily into the core of the fiber. Consequently, even though considerable progress has been made in this field, the phenomenon of bleeding of the coloration, i.e., color loss, during shampooing is still non-negligible, even if the dye(s) used is (are) chosen from cationic species. Moreover, the use of certain cationic direct dyes may be reflected by a reduction in the working qualities of the shampoos used after coloration, especially as regards the duration of the lather. [0006] The present invention is thus directed to a process for inhibiting the phenomenon of bleeding of color from hair fibers during shampooing. SUMMARY OF THE INVENTION [0007] In order to achieve these and other advantages, the present invention is drawn to a process for inhibiting dyed hair fibers from losing their color during shampooing involving contacting the dyed hair fibers with a composition containing: [0008] (a) at least one polyamine compound having at least two amino groups; [0009] (b) at least one anionic silicone; and [0010] (c) optionally, at least one surfactant, and [0011] wherein (a) is present in an amount sufficient to inhibit the dyed hair fibers from losing their color during shampooing. DETAILED DESCRIPTION [0012] Other than in the operating examples, or where otherwise indicated, all numbers expressing quantities of ingredients and/or reaction conditions are to be understood as being modified in all instances by the term "about". [0013] "Amino groups" as defined herein includes primary amino groups, secondary amino groups, and tertiary amino groups, and further includes amino groups which are terminal, pendant, and intercalated in a skeleton of the at least one polyamine compound, but does not, for example, include quaternary amino groups, amido groups, imino groups, nitrilo groups, or heteroatom analogs of any of the foregoing. [0014] "At least one" as used herein means one or more and thus includes individual components as well as mixtures/combinations. [0015] The at least one polyamine compound of the present invention comprises at least two amino groups, preferably at least three amino groups, more preferably at least four amino groups, more preferably at least five amino groups, more preferably at least six amino groups, more preferably at least seven amino groups, more preferably at least eight amino groups, more preferably at least nine amino groups, and more preferably at least ten amino groups. [0016] In one embodiment of the present invention, the at least one polyamine compound may, for example, be chosen from aminated polysaccharides comprising at least two amino groups, such as, for example, hydrolysates (through chemical and/or enzymatic process) of aminated polysaccharides comprising greater than two amino groups. In one embodiment, the at least one polyamine compound may, for example, be chosen from polymers. Suitable polymers for use as the at least one amine compound are polymers comprising at least two amino groups as defined herein. Non-limiting examples of suitable polymers include homopolymers comprising at least two amino groups, copolymers comprising at least two amino groups, and terpolymers comprising at least two amino groups. Thus, the at least one polyamine compound comprising at least two amino groups may be chosen from, for example, polymers comprising at least two amino groups formed from (i) at least one monomer unit comprising at least one amino group as defined herein, and, optionally, (ii) at least one additional monomer unit different from the at least one monomer (i); and polymers comprising at least two amino groups formed from (i) at least one monomer comprising at least two amino groups as defined herein, and, optionally, (ii) at least one additional monomer unit different from the at least one monomer (i). According to the present invention, the at least one additional monomer different from the at least one monomer (i) may or may not comprise at least one amino group as defined herein. A particularly preferred polyamine polymer is chitosan. [0017] In one embodiment of the present invention, the at least one polyamine compound is chosen from polyamines. As used herein, "polyamines" comprise at least two repeating units, wherein each unit comprises at least one amino group as defined herein. In one embodiment, polyamines are chosen from polyethyleneimines. Polyethyleneimines suitable for use in the compositions of the present invention may optionally be substituted. Non-limiting examples of polyethyleneimines which may be used in the composition according to the present invention are the Lupasol.TM. products commercially available from BASF. Suitable examples of Lupasol.TM. polyethyleneimines include Lupasol.TM. PS, Lupasol PL, Lupasol.TM. PR8515, Lupasol.TM. G20, Lupasol.TM. G35 as well as Lupasol.TM. SC.RTM. Polythyleneimine Reaction Products (such as Lupasol.TM. SC-61B.RTM., Lupasol.TM. SC-62J.RTM., and Lupasol.TM. SC-86X.RTM.). Other non-limiting examples of polyethyleneimines which may be used in the composition according to the present invention are the Epomin.TM. products commercially available from Aceto. Suitable examples of Epomin.TM. polyethyleneimines include Epomin.TM. SP-006, Epomin.TM. SP-012, Epomin.TM. SP-018, and Epomin.TM. P-1000. [0018] Polyamines suitable for use in the present invention may also be chosen from polyvinylamines. Examples thereof include Lupamines.RTM. 9095, 9030, 9010, 5095, 1595 from BASF. [0019] The polyamine compounds can also be substituted. An example of such a compound is PEG-15 Cocopolyamine from Cognis. [0020] In another embodiment, the at least one polyamine compound comprising at least two amino groups is chosen from proteins and protein derivatives. Non-limiting examples of suitable proteins and protein derivatives for use in the present invention include those listed at pages 1701 to 1703 of the C.T.F.A. International Cosmetic Ingredient Dictionary and Handbook, 8.sup.th edition, vol. 2, (2000). In one embodiment, the at least one polyamine compound comprising at least two amino groups is chosen from wheat protein, soy protein, oat protein, collagen, and keratin protein. [0021] In one embodiment, the at least one polyamine compound comprising at least two amino groups is not chosen from proteins and protein derivatives. In one embodiment, the at least one polyamine compound comprising at least two amino groups is not chosen from compounds comprising lysine, compounds comprising arginine, and compounds comprising histidine. In one embodiment, the at least one polyamine compound comprising at least two amino groups is chosen from compounds comprising lysine, compounds comprising arginine, compounds comprising histidine, and compounds comprising hydroxylysine. [0022] In the present invention, the at least one polyamine compound is employed in an amount sufficient to inhibit dyed hair fibers from losing their color during shampooing and/or inhibit hair fibers, in general, from appearing frizzy, especially when exposed to high humidity. Typically, it will be present in an amount of from greater than 0% to 30% by weight, preferably from 5% to 20% by weight, and more preferably from 5% to 10% by weight, based on the weight of the composition as a whole. [0023] In general, non-limiting examples of anionic silicones which may be used in the process of the present invention include silicone carboxylates, silicone phosphates, silicone sulfates, silicone sulfosuccinates, and silicone sulfonates. [0024] Suitable silicone carboxylates may be chosen from water soluble silicone compounds comprising at least one carboxylic acid group, oil soluble silicone compounds comprising at least one carboxylic acid group, water-dispersible silicone compounds comprising at least one carboxylic acid group, and silicone compounds comprising at least one carboxylic acid group which are soluble in organic solvents. In one embodiment, the at least one silicone compound comprising at least one carboxylic acid group further comprises at least one alkoxylated chain, wherein the at least one alkoxy group may be chosen from terminal alkoxy groups, pendant alkoxy groups, and alkoxy groups which are intercalated in the skeleton of the at least one silicone compound. Non-limiting examples of at least one alkoxy group include ethylene oxide groups and propylene oxide groups. [0025] The at least one carboxylic acid group may be chosen from terminal carboxylic acid groups and pendant carboxylic acid groups. Further, the at least one carboxylic acid may be chosen from carboxylic acid groups in free acid form, i.e., --COOH, and carboxylic acid groups in salt form, i.e., --COOM, wherein M may be chosen from inorganic cations, such as, for example, potassium cations and sodium cations, and organic cations. Continue reading about Process for inhibiting dyed hair fibers from losing their color during shampooing... Full patent description for Process for inhibiting dyed hair fibers from losing their color during shampooing Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Process for inhibiting dyed hair fibers from losing their color during shampooing patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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