Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2003-05-29
2004-06-01
Boyer, Charles (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S119000, C510S122000, C510S123000, C510S124000, C510S421000, C510S422000, C510S424000, C510S426000, C510S427000, C510S466000, C510S503000, C510S490000
Reexamination Certificate
active
06743760
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to hair cleansing and/or conditioning with the use of a selected guar gum. A clear shampoo is obtained.
BACKGROUND OF THE INVENTION
The use of silicone conditioning ingredients is frequently seen in the art and in commercial products. Such ingredients provide a high degree of both wet and dry combing ability to a variety of hair types. The use of such silicone materials requires the presence of a stabilizing agent such as ethylene glycol distearate, C20-40 alcohols, behenyl alcohol, to name a few. While the stabilizing agents provide stability, they also add to the opaqueness of the final product. The opaqueness can be desirable if a pearlized product is desired, but it makes it impossible to achieve clear products. In addition, the use of dimethicone at typical use levels delivers unacceptable translucency and typically poor stability profiles. Further, the use of alternatives to dimethicone such as dimethicone copolyols, amodimethicone, or PEG silicone surfactants, or the exclusive use of polyquaterniums as polymeric conditioning agents can provide transparent shampoo systems but they do not provide the required beneficial conditioning properties to hair as evaluated with wet and dry combing tests.
Previous attempts at formulating hair care compositions include the following references.
U.S. Pat. No. 5,114,706 to Duvel describes hair conditioning shampoos comprising cationic dialkyl conditioning agents in combination with long chain fatty alcohols and non-volatile silicones that are suspended by cross-linked polymeric suspending agents.
U.S. Pat. No. 5,302,322 to Birtwistle describes a shampoo comprising a cationic deposition polymer, a surfactant, and a water-insoluble end-functionalized quaternary silicone polymer capable of dissolving in the surfactant.
U.S. Pat. No. 6,194,363 to Murray describes small particle size emulsified silicone in combination with amino functional silicones to boost conditioning properties of the conditioning shampoo.
U.S. Pat. No. 6,495,498 to Niemiec et al describes a 2-in-1 detergent system comprising a water soluble silicone agent, a cationic conditioning agent and a detergent.
U.S. Pat. No. 5,326,483 to Halloran et al describes a clear shampoo product which contains a cationic oil-in-water emulsion of an amine functional polydimethyl silicone and a method of making a clear and stable shampoo composition with the absence of a pearling agent.
PCT Publication WO 02/22085 describes a method for treating the hair with a transparent concentrated hair conditioning composition.
BRIEF SUMMARY OF THE INVENTION
This invention relates to the use of a selected quaternized silicone conditioning agent in combination with a selected guar gum and Polyquaternium-10. The quaternized silicone is recognized under the INCI designation-silicone Quaternium-8 (tradename Ultrasil Q-8 and Ultrasil Q8 Plus), both from Noveon, Inc. Cleveland Ohio. All three ingredients are necessary for forming products according to the invention. The omission of the guar gum reduces wet comb-ability and poorer lathering properties while also reducing the viscosity of the final product. The omission of the silicone quaternary materials reduces dry comb-ability and there is less of a smooth feel to washed hair. Omission of the Polyquaternium-10 reduces formulation viscosity and foam slip and results in a less desirable coated feel to the hair. If the level of cationic guar gum is raised to improve the lesser desired properties without Polyquaternium-10, the formulation becomes slightly hazy. Thus, all the ingredients listed above are critical to the formulation of an acceptable product.
DETAILED DESCRIPTION OF THE INVENTION
The conditioning shampoos of the invention comprise:
(a) 8-18 weight % (particularly 8-12%) of an anionic surfactant;
(b) 0.5-0.8 weight % of a conditioning system comprising:
(i) 0.1-0.75 weight % (particularly 0.3-0.6% and, more particularly, 0.5%) of a silicone quaternium material which is silicone Quaternium-8 (INCI designation) (tradename Ultrasil Q-8 and Ultrasil Q8Plus);
(ii) 0.1-0.5 weight % (particularly 0.15-0.3%) of a low molecular weight (less than 100,000 centipoise, more particularly in the range 40,000-65,000 cps) guar gum as an aqueous clear cationic solution of modified polysaccharide (such as AquaCat™ CG-518 clear cationic solution from Hercules Inc., Wilmington, Del.); and
(iii) 0.1-0.5 weight % (particularly 0.15-0.3%) of Polyquaternium-10 (also sometimes referred to as Polymer JR);
(c) 1.0-6.0 weight % (particularly 3-5%) of an amphoteric surfactant;
(d) 0.5-5.0 weight % (particularly 1-3%) of a member selected from the group consisting of cocodiethanol amide (“CDEA”) and cocomonoethanol amide (“CMEA”) (useful as foam stabilizer and/or rheology modifier); and
(e) the remainder as water;
provided that if CDEA is used with betaine, a salt such as NaCl or an equivalent or similar salt (such as, for example, ammonium chloride) is included in an amount of 0.1%-2.00 weight % to thicken the product to 3,500 cps or greater if a liquid non-aerosol product is to be formed. Viscosity is typically measured using a Brookfield RVT viscometer using spindle #4 and 20 r.p.m. with the sample being equilibrated to 25C.
The hair care composition of the invention comprises at least one surfactant which may be selected from anionic, nonionic, amphoteric and zwitterionic surfactants and mixtures thereof. Examples of required surfactants include at least 8 weight % of an anionic surfactant, and at least one of the following: 1) at least 0.1 weight % (particularly 1-2 weight %) amphoteric or semipolar surfactant or 2) at least 0.5 weight % (particularly 1-2 weight %) of a nonionic surfactant.
Optionally other ingredients may be included such as other types of surfactants (zwitterionic, semi-polar, nonionic ) rheology modifiers, coloring agents, UV absorbers, protein derivatives, fragrance (≦0.1 weight %), and vitamins (≦0.1 weight %), may be added provided that clarity is maintained.
The clarity of the final product may be ascertained by being able to read 12 pitch typed print through a clear bottle approximately 4-5 cm (about 1.5-1.75 inches) thick using naked eye evaluation.
The conditioning shampoos of this invention are also unique since they are transparent to clear even with the use of guar gum as described above. The use of the type of guar gum as described above is important to the invention. It should also be noted that the formulations of this invention are able to achieve the required clarity without the use of microsponges. Finally, the present compositions do not require the presence of stabilizers. Thus, the formulations of this invention can (i) include silicone-free microsponges or (2) be both microsponge-free and stabilizer-free; or (3) include stabilizers not principally as stabilizers but to control foam aesthetics (add creaminess, slip, etc.).
The products of this invention may be used as liquids, placed in a pressurized container with a propellant added, or used in a pump spray form. The viscosity of the product will be selected to accommodate the form desired with a liquid having a modified viscosity in the range of 500-3000 centipoise, a non-aerosol pump spray having a viscosity in the range of −300-2000 centipoise, and an aerosol foam using a liquid material having a viscosity in the range of 300-2500 centipoise.
The low molecular weight quaternized guar gum comprising guar hydroxypropyltrimonium chloride was obtained from Hercules under the tradename—Aquacat™ CG518. For this product generally, the weight average molecular weight is between 5,000 and an upper limit of 200,000 and the light transmittance is greater than 80% at a wavelength of 600 nm in a 10% aqueous solution. Both the chemical description and method for manufacture are described in detail in U.S. patent application Ser. No. 10/139,858 filed May 6, 2002.
The water soluble silicone quaternary compound ingredient is commercially available from Noveon Inc. of Cleveland, Ohio under the tradename of Ultrasil Plus and is describ
Hardy Eugene
Psihoules Anthony
Boyer Charles
Colgate-Palmolive Company
Miono Rosemary M.
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