Drug – bio-affecting and body treating compositions – Live skin colorant containing – Lip
Reexamination Certificate
2000-04-13
2001-12-04
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Live skin colorant containing
Lip
C424S063000, C424S401000, C514S844000
Reexamination Certificate
active
06325996
ABSTRACT:
RELATED APPLICATIONS
This application claims the priority of Japanese Patent plication No.11-106879 filed on Apr. 14, 1999 and Japanese Patent application No. 11-293091 filed on Oct. 15, 1999 which are incorporated herein by reference.
FIELD OF THE INVENTION
The present invention relates to a composition for lip rouge and, in particular, to an improvement in the long term preservation stability and improvement in gloss and feel during use.
BACKGROUND OF THE INVENTION
Generally wax and various kinds of liquid oil are combined to form a lip rouge composition. Especially, in recent years, because gloss is demanded at the time of lip application, lanolin and heavy liquid isoparaffin are applied as the oils that give gloss.
However, the smell that emanates from oxidation degradation of lanolin and the like is a problem. Especially, as there is the possibility that the composition for lip rouge may be stored for a long time with respect to the period of around sale. Moreover, the occurrence of the odor is an extremely important problem, because the rouge is applied to the lips which are close to the smell sensing areas.
Also, heavy liquid isoparaffin and the like have high viscosity. Accordingly, when it is extensively used in the composition for lip rouge, the feeling especially the spreadability is unsatisfactory.
SUMMARY OF THE INVENTION
The present invention is achieved in view of the foregoing prior art. An object of the present invention is to provide a composition for lip rouge which feels light on the lips and stable over a long period of time.
As a result of diligent study by the present inventors a composition for lip rouge has been found. A composition that has the gloss equivalent of lanolin can be obtained by combining a glyceryl diisostearate/hydrogenated rosinate and/optionally a hydroxy acid ester and a heavy liquid isoparaffin. Furthermore, the present inventors have found that the feel of the rouge on the lips is improved substantially without damage by adding methylphenyl polysiloxane.
Namely, a composition for lip rouge of the present invention contains a glyceryl diisostearate/hydrogenated rosinate and/optionally a hydroxy acid ester and heavy liquid isoparaffin and methylphenyl polysiloxane.
Also, in the present invention, it is preferable that said composition contains 5 to 20 wt % of the glyceryl diisostearate/hydrogenated rosinate, 10 to 30 wt % of the heavy liquid isoparaffin, and 10 to 30 wt % of the methylphenyl polysiloxane.
Also, in the present invention, it is preferable that said composition contains 5 to 30 wt % of the hydroxy acid ester, 10 to 30 wt % of the heavy liquid isoparaffin, and 10 to 30 wt % of the methylphenyl polysiloxane.
Also, in the present invention, it is preferable that said hydroxy acid ester is composed of an aliphatic alcohol of carbon number 12 to 20, and a hydroxy acid of carbon number 12 to 20.
Also, in the present invention, it is preferable that said hydroxy acid ester is composed of 12-hydroxystearic acid of the hydroxy acid, and 2-heptyl undecanol of the aliphatic alcohol.
Also, in the present invention, it is preferable that said heavy liquid isoparaffin's mean molecular weight is 500 to 3000.
Also, in the present invention, it is preferable that said composition is a lip rouge.
REFERENCES:
patent: 5362482 (1994-11-01), Yoneyama et al.
patent: 10139630 (1998-05-01), None
patent: 12-297012 (2000-10-01), None
patent: 13-114648 (2001-04-01), None
Hosokawa Kinya
Minami Takashi
Shinojima Satoshi
Soyama Yoshikazu
Fubara Blessing
Page Thurman K.
Shiseido Co. Ltd.
Snider Ronald R.
Snider & Associates
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