Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Polymer containing
Reexamination Certificate
2003-01-22
2003-09-30
Venkat, Jyothsan (Department: 1615)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Polymer containing
C424S070190, C424S070210, C424S070220
Reexamination Certificate
active
06627184
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to conditioning shampoo compositions which contain select combinations of hair conditioning agents, and which provide improved hair conditioning performance, including improved wet hair feel.
BACKGROUND OF THE INVENTION
Conditioning shampoos comprising various combinations of detersive surfactant and hair conditioning agents are known. These shampoos have become more popular among consumers as a means of conveniently obtaining hair conditioning and hair cleansing performance all from a single hair care product.
Especially popular among consumers are those conditioning shampoos which comprise a cationic hair conditioning polymer. The cationic polymer provides the shampoo with wet hair conditioning, and in particular helps prevent tangling of hair during and after rinsing, and provides the wet hair with a smooth, silky texture that consumers can associate with optimal conditioning and cleaning performance.
Also popular among consumers are those conditioning shampoos which contain a combination of cationic hair conditioning polymer with other hair conditioning materials. The use of these combined conditioner systems in a shampoo composition provides the consumer with a more balanced hair conditioning profile. Other conditioning agents used in such combinations include silicone conditioning agents to provide improved dry hair conditioning, and organic conditioning oils such as hydrocarbon oils and fatty esters to provide improved wet hair conditioning and softness to the hair when dried. The organic conditioning oils are especially useful when used in combination with a cationic conditioning polymers to provide luster and shine to the hair when dried. These organic conditioning oils, however, are often characterized by consumers as leaving the hair feeling dirty, and causing the hair to appear flat and without fullness and body.
It has now been found that select organic conditioning oils, when used in combination with a cationic conditioning polymer and an anionic detersive surfactant component, provide improved conditioning performance in the form of improved clean hair feel, and improved fullness and body. The select organic conditioning oils are water insoluble, polyalphaolefin polymers derived from 1-alkene monomers having from about 4 to about 14 carbon atoms, wherein the select polyalphaolefin polymers have a viscosity of from about 1 to about 300 centipoise as measured at 40° C.
It is therefore an object of the present invention to provide a hair conditioning shampoo composition with improved hair conditioning performance, and further to provide such a composition with improved hair conditioning performance which also contains a cationic hair conditioning polymer and an organic conditioning oil, and further to provide such a composition which has improved conditioning performance in the form of improved clean hair feel, and improved fullness and body.
SUMMARY OF THE INVENTION
The present invention is directed to hair conditioning shampoo compositions which comprise (A) from about 5% to about 50% by weight of an anionic detersive surfactant component selected from the group consisting of anionic surfactants, zwitterionic or amphoteric surfactants having an attached group that is anionic at the pH of the composition, and combinations thereof, (B) from about 0.025% to about 3% by weight of an organic, cationic, hair conditioning polymer, (C) from about 0.05% to about 3% by weight of an organic, water-insoluble, polyalphaolefin polymer derived from 1-alkene monomers having from about 4 to about 14 carbon atoms, wherein the polyalphaolefin has a viscosity of from about 1 to about 300 centipoise as measured at 40° C; and (D) from about 20% to about 94% by weight of water. The select polyalphaolefins provide the composition with improved conditioning performance.
DETAILED DESCRIPTION OF THE INVENTION
The shampoo compositions of the present invention can comprise, consist of, or consist essentially of the essential elements and limitations of the invention described herein, as well any of the additional or optional ingredients, components, or limitations described herein.
All percentages, parts and ratios are based on the total weight of the shampoo compositions of the present invention, unless otherwise specified. All such weights as they pertain to listed ingredients are based on the active level and, therefore, do not include carriers or by-products that may be included in commercially available materials, unless otherwise specified.
As used herein, the term “soluble” refers to materials that are sufficiently soluble in water to form a substantially clear solution to the naked eye at a concentration of 0.1% by weight of the material in water at 25° C. Conversely, the term “insoluble” refers to all other materials that are therefore not sufficiently soluble in water to form a substantially clear solution to the naked eye at a concentration of 0.1% by weight of the other material in water at 25° C.
As used herein, the term “low viscosity” refers to viscosity of from about 1 to about 300 centipoise, preferably from about 1 to about 150 centipoise, more preferably from about 2 to about 50 centipoise. All viscosity values herein are measured at a temperature of 40° C by the ASTM D-445 method.
As used herein, “nonvolatile” refers to any material having little or no significant vapor pressure under ambient conditions, and a boiling point under one atmosphere (atm) preferably at least about 250° C. The vapor pressure under such conditions is preferably less than about 0.2 mm Hg at 25° C. or less, preferably less than about 0.1 mm Hg at 25° C. or less.
As used herein, the term “liquid” refers to any visibly (by the naked eye) flowable fluid under ambient conditions (about 1 atmosphere of pressure at about 25° C.)
The shampoo compositions of the present invention including the essential and some optional components thereof, are described in detail hereinafter.
Anionic Detersive Surfactant Component
The shampoo compositions of the present invention comprise an anionic detersive surfactant component to provide cleaning performance to the composition. The anionic detersive surfactant component in turn comprises anionic detersive surfactant, zwitterionic or amphoteric detersive surfactant which has an attached group that is anionic at the pH of the composition, or a combination thereof, preferably anionic detersive surfactant. Such surfactants should be physically and chemically compatible with the essential components described herein, or should not otherwise unduly impair product stability, aesthetics or performance.
Suitable anionic detersive surfactant components for use in the shampoo composition herein include those which are known for use in hair care or other personal care cleansing compositions. The concentration of the anionic surfactant component in the shampoo composition should be sufficient to provide the desired cleaning and lather performance, and generally range from about 5% to about 50%, preferably from about 8% to about 30%, more preferably from about 10% to about 25%, even more preferably from about 12% to about 18%, by weight of the composition.
Preferred anionic surfactants suitable for use in the shampoo compositions are the alkyl and alkyl ether sulfates. These materials have the respective formulae ROSO
3
M and RO(C
2
H
4
O)
x
SO
3
M, wherein R is alkyl or alkenyl of from about 8 to about 18 carbon atoms, x is an integer having a value of from 1 to 10, and M is a cation such as ammonium, alkanolamines, such as triethanolamine, monovalent metals, such as sodium and potassium, and polyvalent metal cations, such as magnesium, and calcium. The cation M should be selected such that the anionic detersive surfactant component is water soluble. Solubility of the surfactant will depend upon the particular anionic detersive surfactants and cations chosen.
Preferably, R has from about 8 to about 18 carbon atoms, more preferably from about 10 to about 16 carbon atoms, even more preferably from about 12 to about 14 carbon atoms, in b
Coffindaffer Timothy Woodrow
Inman Everett Junior
Peebles Brent M.
The Procter & Gamble & Company
Venkat Jyothsan
LandOfFree
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