Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Polymer containing
Reexamination Certificate
2002-11-25
2004-03-23
Venkat, Jyothsna (Department: 1615)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Polymer containing
C424S070150
Reexamination Certificate
active
06709648
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
The application is a continuation of International application PCT/US01/17077 (Case AA-475M2) filed on May 29, 2001, which claims priority to International application PCT/US00/30342 (Case AA-475M) filed on Nov. 3, 2000, and PCT/US00/14869 (Case AA475F) filed on May 30, 2000.
TECHNICAL FIELD
The present invention relates to hair conditioning compositions comprising silicone compounds and frizz control agents.
BACKGROUND
Hair is often subjected to a wide variety of insults that can cause damage. These include shampooing, rinsing, drying, heating, combing, styling, perming, coloring, exposure to the elements, etc. Thus, the hair is often in a dry, rough, lusterless or frizzy condition due to abrasion of the hair surface and removal of the hair's natural oils and other natural conditioning and moisturizing components. Additionally, hair is subjected to weather-related changes, such as changes in humidity, which can leave hair in a frizzy condition.
Frizzy condition of the hair often causes an expanded and unruly hair and makes it difficult to control the hair style. For consumers who desire well aligned hair, such expanded and unruly hair is not desirable. The term “frizz control” herein means to control hair frizz, i.e., to reduce frizz condition of the hair or to prevent the hair from causing frizzy condition.
A variety of approaches have been developed to control hair frizz. These include reactive chemistry approaches aimed at a permanent restructuring of hair, and application of oily leave-on products to weigh down hair. The use of reactive chemistry provides a permanent frizz reduction benefit. However, the reactive chemistry methods and compositions are harsh on the hair structure and can cause hair to split or break and can also result in a loss of hair shine. Skin and/or eye irritation from the relatively harsh chemicals used in reactive chemistry methods is also common.
Typically, leave-on conditioner type hair formulations provide advantages over other more permanent frizz reduction approaches. For example, leave-on formulations are typically less damaging to the hair. Also, leave-on formulations are more convenient because the consumer can use the product at any time and then wash the product out of the hair with one washing. Another benefit is that the product may be applied to parts of the hair most in need of the frizz control benefits.
Commonly, hair conditioning benefits are provided through the use of hair conditioning agents such as cationic surfactants, cationic polymers, silicone conditioning agents, hydrocarbon and other organic oils and solid aliphatics such as fatty alcohols. However, such conditioning agents are often impractical for using in the large amounts necessary to control hair frizz. Usage of large amounts of conditioning agents that work to control hair frizz by coating and weighing down the hair commonly results in a poor perception of hair cleanliness and hair feel, for example, leaving the hair and hands with a tacky, dirty, feeling.
Based on the foregoing, there remains a desire to provide hair conditioning compositions which provide improved frizz control benefit while retaining good conditioning benefits and good hair feel and appearance, i.e., which provide improved frizz control benefit in addition to other conditioning benefits such as smoothness, softness, and reduction of friction, while reducing sticky and greasy feeling.
None of the existing art provides all of the advantages and benefits of the present invention.
SUMMARY
The present invention is directed to a hair conditioning composition comprising:
(1) a non-volatile silicone compound which has a molecular weight of from about 100,000 to about 1,500,000 and has a viscosity of from about 500,000 to about 50,000,000 mPa·s;
(2) a volatile compound selected from the group consisting of an isoparaffin hydrocarbon having a boiling point of from about 60 to about 260° C., a volatile silicone compound having from 2 to 7 silicon atoms, and mixtures thereof; and
(3) a frizz control agent selected from the group consisting of (i), (ii), and (iii):
(i) PEG-modified glycerides having the structure:
wherein one or more of the R groups is selected from saturated or unsaturated fatty acid moieties derived from animal or vegetable oils wherein the fatty acid moieties have a carbon length chain of from 12 and 22, any other R groups are hydrogen, x, y, z are independently zero or more, the average sum of x+y+z is equal to from about 10 to about 45;
(ii) PEG-modified glyceryl fatty acid esters having the structure:
wherein R is an aliphatic group having from 12 to 22 carbon chain length, and n has an average value of from 5 to 40;
(iii) mixtures thereof.
These and other features, aspects, and advantages of the present invention will become evident to those skilled in the art from a reading of the present disclosure.
DETAILED DESCRIPTION
While the specification concludes with claims which particularly point out and distinctly claim the invention, it is believed the present invention will be better understood from the following description.
All cited references are incorporated herein by reference in their entireties. Citation of any reference is not an admission regarding any determination as to its availability as prior art to the claimed invention.
Herein, “comprising” means that other steps and other ingredients which do not affect the end result can be added. This term encompasses the terms “consisting of” and “consisting essentially of”.
All percentages, parts and ratios are based upon the total weight of the 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.
The aspects and embodiments of the present invention set forth in this document have many advantages. For example, the hair conditioning compositions of the present invention provide improved conditioning benefits to the hair, especially, provide improved frizz control benefit in addition to other conditioning benefits such as smoothness, softness, and reduction of friction, and leave the hair and hands with a clean feeling.
Non-Volatile Silicone Compound
The compositions of the present invention comprise a non-volatile silicone compound.
The non-volatile silicone compound of the present invention has a molecular weight of from about 100,000 to about 1,500,000, more preferably from about 100,000 to about 1,000,000, and even more preferably from about 120,000 to about 600,000.
The non-volatile silicone compound of the present invention has a viscosity of from about 500,000 to about 50,000,000 mPa·s at 25° C., more preferably from about 600,000 to about 30,000,000 mPa·s, and even more preferably from about 800,000 to about 10,000,000 mPa·s. The viscosity can be measured by means of a glass capillary viscometer as set forth in Dow Corning Corporate Test Method CTM0004, Jul. 20, 1970.
The non-volatile silicone compound useful herein is believed to provide conditioning benefits to the hair such as smoothness, softness, and combing ease.
The non-volatile silicone compound can be included in the composition of the present invention at a level by weight of preferably from about 0.5% to about 30%. Especially, in a non-aqueous composition of the present invention, the non-volatile silicone compound can be included at a level by weight of preferably from about 1% to about 30%, more preferably from about 3% to about 25%, still preferably from about 5% to about 20%. Especially, in an aqueous composition of the present invention, the non-volatile silicone compound can be included at a level by weight of preferably from about 0.5% to about 20%, more preferably from about 0.75% to about 15%, still preferably from about 1% to about 15%.
Silicone compound of high molecular weight may be made by emulsion polymerization. The silicone compounds may further be incorporated in the prese
Cerda Luisa Navarro
Mitsumatsu Arata
Monton James Albert
Okuyama Yoshinari
Sako Takashi
Bolam Brian M.
Sivik Linda M.
The Procter & Gamble & Company
Venkat Jyothsna
LandOfFree
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