Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Polymer containing
Reexamination Certificate
1999-06-04
2002-04-09
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Polymer containing
C424S070100, C424S070120, C424S070130, C424S070270, C424S070280
Reexamination Certificate
active
06368582
ABSTRACT:
TECHNICAL FIELD
The present invention relates to hair conditioning compositions comprising a water-insoluble high molecular weight oily compound.
BACKGROUND
Human hair becomes soiled due to its contact with the surrounding environment and from sebum secreted by the scalp. The soiling of the hair causes it to have a dirty or greasy feel, and an unattractive appearance. The soiling of the hair necessitates shampooing with regularity.
Shampooing cleans the hair by removing excess soil and sebum. However, shampooing can leave the hair in a wet, tangled, and generally unmanageable state. Once the hair dries, it is often left in a dry, rough, lusterless, or frizzy condition due to removal of the hair's natural oils and other natural conditioning and moisturizing components. The hair can further be left with increased levels of static upon drying which can interfere with combing and result in a condition commonly referred to as “fly-away hair”, or contribute to an undesirable phenomena of “split ends”, particularly for long hair.
A variety of approaches have been developed to alleviate these after-shampoo problems. These approaches range from post-shampoo application of hair conditioner such as leave-on and rinse-off products, to hair conditioning shampoos which attempt to both cleanse and condition the hair from a single product. Although some consumers prefer the ease and convenience of a shampoo which includes conditioners, a substantial proportion of consumers prefer the more conventional conditioner formulations which are applied to the hair as a separate step from shampooing, usually subsequent to shampooing. Conditioning formulation can be in the form of rinse-off products or leave-on products, and can be in the form of an emulsion, cream, gel, spray, and mousse. Such consumers who prefer the conventional conditioner formulations value the relatively higher conditioning effect, or convenience of changing the amount of conditioning depending on the condition of hair or portion of hair. Further, consumers prefer conditioners which provide smoothness and softness to the hair and wet combing benefits.
A common method of providing conditioning benefit to the hair is through the use of hair conditioning agents such cationic surfactants and polymers, silicone conditioning agents, and hydrocarbon and other organic oils, and solid aliphatics such as fatty alcohols. Cationic surfactants and polymers, as well as oils and aliphatics are known to enhance hair shine and provide moistness, softness, and static control to the hair, however, are also known to provide stickiness or greasy or waxy feeling.
High molecular weight substances, for example, silicone polymers are also known to provide conditioning benefits such as smoothness and combing ease. Without being bound by theory, it is believed that, due to the low surface tension of silicone polymers, silicone polymer provides favorable conditioning benefits to the hair. However, a large amount of silicone polymer compound causes dry feel or frizzy condition.
Japan Laid open S55-124711 discloses a hair composition comprising a branched ester such as pentaerythritol monoisostearate, methylphenyl-silicone compound, polyoxyethylene fatty acid ester and water. Japan Laid open H5-124921 discloses a cosmetic composition comprising a nonionic amphiphilic compound having at least one long chain branched alkyl or alkenyl group and structure of a lamellar liquid crystal. The nonionic amphiphilic includes methyl branched fatty acid ester of pentaerythritol.
There remains a desire to provide hair conditioning compositions with improved conditioning benefits such as smoothness, softness, and ease of combing when the hair is wet.
In the present invention, a hair conditioning composition comprising a water-insoluble high molecular weight oily compound which is in a liquid form and has a molecular weight of at least about 800 has been developed. This hair conditioning composition provides improved conditioning benefits such as moistness, softness, free flowing, decreased stickiness, and static control, and which known conditioning agents can be incorporated in the composition.
SUMMARY
The present invention relates to a hair conditioning composition comprising:
(a) a water-insoluble high molecular weight oily compound having a molecular weight of at least about 800, specific gravity of at least about 0.9, is in a liquid form at 25° C., and has the following formula (I):
wherein A
1
, A
2
, A
3
and A
4
are independently alkyl, alkenyl, aryl, alkylaryl, hydroxyalkyl, alkoxyl, alkoxyalkyl, acyl, acylalkyl, and alkylacyloxyl group having C
1
to about C
30
or the formula —(CH
2
)
n
—O—OCR wherein R is from C
1
to about C
30
of branched or straight chain alkyl or alkenyl and n is an integer from 1 to about 30; and
(b) a carrier.
Such compositions satisfy the need for a hair conditioning composition which has improved conditioning benefits such as moistness, softness, free flowing, decreased stickiness, and static control, and which known conditioning agents can be incorporated in the composition.
DETAILED DESCRIPTION
All percentages herein are by weight of the compositions unless otherwise indicated. All ratios are weight ratios unless otherwise indicated. All percentages, ratios, and levels of ingredients referred to herein are by weight and are based on the actual amount of the ingredient, and do not include solvents, fillers, or other materials with which the ingredient may be combined as commercially available products, unless otherwise indicated.
The invention hereof can comprise, consist of, or consist essentially of the essential elements described herein as well as any of the preferred or optional ingredients also described herein.
All publications, patent applications, and issued patents mentioned herein are hereby incorporated in their entirety by reference.
Water-Insoluble High Molecular Weight Oily Compound
The hair conditioning composition of the present invention comprises a water-insoluble high molecular weight oily compound and a carrier. The water-insoluble high molecular weight oily compounds of the present invention are those which provide excellent conditioning benefits such as smoothness to the hair and ease of combing. Without being bound by theory, it is believed that, the water-insoluble high molecular weight oily compound of this invention is capable of being deposited on and conditions the hair. It is also believed that this water-insoluble high molecular weight oily compound covers the surface of the hair and as a result reduces hair friction to deliver smoothness to the hair. The water-insoluble high molecular weight oily compound is chemically stable under normal use and storage conditions.
As used herein, the term “water-insoluble oily compound” is meant that the compound is not sufficiently soluble in water at room temperature. When the compound is mixed with water at above 1.0% concentration, more preferably at above 0.5% concentration, the compound is temporarily dispersed to form unstable colloid in water, then is quickly separated from water into two phases in a short period.
The water-insoluble high molecular weight oily compound useful in the present invention has a molecular weight of at least about 800, preferably at least about 1000, more preferably at least about 1200 as long as the compound has a specific gravity of at least about 0.9, and is in a liquid form at 25° C.
The water-insoluble high molecular weight oily compound useful herein include those of the following formula (I):
wherein A
1
, A
2
, A
3
and A
4
are independently alkyl, alkenyl, aryl, alkylaryl, hydroxyalkyl, alkoxyl, alkoxyalkyl, acyl, acylalkyl, and alkylacyloxyl group having C
1
to about C
30
or the formula —(CH
2
)
n
—O—OCR wherein R is from C
1
to about C
30
of branched or straight chain alkyl or alkenyl and n is an integer from 1 to about 30, and preferably equals 1.
Preferably, the water-insoluble high molecular weight oily compound of this invention is an ester wherein all of A
1
, A
2
, A
3
and A
4
are ester groups or
Corstanje Brahm J.
Page Thurman K.
Rosnell Tara M.
Seidleck Brian K.
Sivik Linda M.
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