Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Cosmetic – antiperspirant – dentifrice
Reexamination Certificate
2001-06-27
2003-01-07
Zitomer, Fred (Department: 1713)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Cosmetic, antiperspirant, dentifrice
C424S070210, C424S070170, C424S070100, C424S064000, C528S339000, C528S339300, C528S335000, C528S332000
Reexamination Certificate
active
06503522
ABSTRACT:
TECHNICAL FIELD
The present invention pertains to a skincare or skin treatment composition which can be used as make-up for the skin, the scalp, and/or for lips for human beings, containing a fatty liquid phase gelled by a particular gellant and presented in the form of a stick which, when applied, gives a gloss coating and which does not run or wick.
BACKGROUND OF THE INVENTION
In cosmetic or skincare products, it is usual to find a structured fatty liquid phase, i.e., a thickened, gelled, or solidified phase. This is the case in particular in solid compositions such as deodorants, balms and lipsticks, concealers for shadows under the eyes and molded foundations. Structure is typically obtained by introducing waxes or charged species into the formulation. Unfortunately these waxes and/or charged species have a tendency to make the coatings of the composition have a matte appearance which is not always desirable, especially for lipstick since women prefer a lipstick that gives more gloss to the lips.
The structure of the fatty liquid phase also limits its exudation (or running) from solid compositions and furthermore limits wicking of liquid into any wrinkles and fine lines after its application to the skin or the lips, a performance property which is particularly in demand for a lipstick. Too much wicking of the fatty liquid phase, especially if it is highly colored, gives an inaesthetic effect around the lips, particularly bringing out the wrinkles and fine lines. This is often specified by women as the main drawback of classical lipsticks.
Gloss is essentially dependent on the nature of the fatty liquid phase. It is possible to decrease the amount of waxes and charged species in the composition to obtain greater gloss in a lipstick, but then the running and wicking of the fatty liquid phase increases. In other words, the amount of waxes and charged species necessary for the realization of a sufficiently firm, run-free stick decreases the gloss of the coating.
The invention bears precisely on the composition of a face and/or lip care and/or makeup and/or treatment allowing to remedy these disadvantages.
SUMMARY OF THE INVENTION
In one aspect, the present invention provides a structured, i.e., gelled, solid composition that contains at least one colorant, a continuous liquid oil phase, and a gellant wherein the gellant for the continuous liquid oil phase is a tertiary amide-terminated polyamide (ATPA) resin of the formula (1):
wherein, n designates a number of repeating units such that terminal amide groups constitute from 10% to 50% of the total amide groups; R
1
at each occurrence is independently selected from a C
1-22
hydrocarbon group; R
2
at each occurrence is independently selected from a C
2-42
hydrocarbon group; R
3
at each occurrence is independently selected from an organic group containing at least two carbon atoms in addition to hydrogen atoms, and optionally containing one or more oxygen and nitrogen atoms; and R
3a
at each occurrence is independently selected from hydrogen, C
1-10
alkyl and a direct bond to R
3
or another R
3a
such that the N atom to which R
3
and R
3a
are both bonded is part of a heterocyclic structure defined in part by R
3a
—N—R
3
, the composition being in the form of a solid; the composition being essentially free of hydrocarbon wax; and the colorant, the liquid oil phase and the ATPA resin forming a physiologically acceptable medium.
In another aspect, the present invention provides a structured composition that contains at least one colorant, a continuous liquid oil phase and a gellant, wherein the continuous liquid oil phase gellant is a tertiary amide-terminated polyamide (ATPA) resin of the formula (1):
wherein, n designates a number of repeating units such that terminal amide groups constitute from 10% to 50% of the total amide groups; R
1
at each occurrence is independently selected from a C
1-22
hydrocarbon group; R
2
at each occurrence is independently selected from a C
2-42
hydrocarbon group; R
3
at each occurrence is independently selected from an organic group containing at least two carbon atoms in addition to hydrogen atoms, and optionally containing one or more oxygen and nitrogen atoms; and R
3a
at each occurrence is independently selected from hydrogen, C
1-10
alkyl and a direct bond to R
3
or another R
3a
such that the atom to which R
3
and R
3a
are both bonded is part of a heterocyclic structure defined in part by R
3a
—N—R
3
, the composition being in the form of a solid with a hardness of 20 to 2,000 g the composition being essentially free of hydrocarbon wax; the colorant, the liquid oil phase and the ATPA resin forming a physiologically acceptable medium.
In another aspect, the present invention provides a structured solid composition for making up the skin or lips, where the composition contains at least one pigment in sufficient quantity for making up the skin or lips, a liquid continuous oil phase, and a gellant wherein the gellant for the liquid continuous oil phase is a tertiary amide-terminated polyamide (ATPA) resin of the formula (1):
wherein, n designates a number of repeating units such that terminal amide groups constitute from 10% to 50% of the total amide groups; R
1
at each occurrence is independently selected from a C
4-22
hydrocarbon group; R
2
at each occurrence is independently selected from a C
2-42
hydrocarbon group; R
3
at each occurrence is independently selected from an organic group containing at least two carbon atoms in addition to hydrogen atoms, and optionally containing one or more oxygen and nitrogen atoms; and R
3a
at each occurrence is independently selected from hydrogen, C
1-10
alkyl and a direct bond to R
3
or another R
3a
such that the N atom to which R
3
and R
3a
are both bonded is part of a heterocyclic structure defined in part by R
3a
—N—R
3
, the composition being in the form of a solid; wherein the pigment, the liquid oil phase and the ATPA resin form a physiologically acceptable medium.
In another aspect, the present invention provides a structured composition for making up the skin or lips, where the composition includes at least one pigment in sufficient quantity for making up the skin or lips, a liquid continuous oil phase, and a gellant, wherein the gellant for the continuous oil phase is a tertiary amide-terminated polyamide (ATPA) resin of the formula (1):
wherein, n designates a number of repeating units such that terminal amide groups constitute from 10% to 50% of the total amide groups; R
1
at each occurrence is independently selected from a C
4-22
hydrocarbon group; R
2
at each occurrence is independently selected from a C
2-42
hydrocarbon group; R
3
at each occurrence is independently selected from an organic group containing at least two carbon atoms in addition to hydrogen atoms, and optionally containing one or more oxygen and nitrogen atoms; and R
3a
at each occurrence is independently selected from hydrogen, C
1-10
alkyl and a direct bond to R
3
or another R
3a
such that the N atom to which R
3
and R
3a
are both bonded is part of a heterocyclic structure defined in part by R
3a
—N—R
3
, the composition being in the form of a solid with hardness of 20 to 2000 g; and wherein the pigment, the liquid oil phase and the ATPA resin form a physiologically acceptable medium.
In another aspect, the present invention provides a structured lipstick composition that contains at least one pigment in sufficient quantity for making up the skin or lips, a liquid continuous oil phase, and a gellant, wherein the gellant for the liquid continuous oil phase is a tertiary amide-terminated polyamide (ATPA) resin of the formula (1):
wherein, n designates a number of repeating units such that terminal amide groups constitute from 10% to 50% of the total amide groups; R
1
at each occurrence is independently selected from a C
4-22
hydrocarbon group; R
2
at each occurrence is independently selected from a C
2-42
hydrocarbon group; R
3
at each occurrence is independently selected from an organic group containing at least two carbon a
Lawson Nelson E.
Pavlin Mark S.
Arizona Chemical Company
Seed Intellectual Property Law Group PLLC
Zitomer Fred
LandOfFree
Tertiary amide-terminated polyamides in structured personal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tertiary amide-terminated polyamides in structured personal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tertiary amide-terminated polyamides in structured personal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3059758