US 6,143,284 A · Packaged antiperspirant cream composition · patentgrep

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Abstract

Disclosed is a packaged antiperspirant cream composition comprising a gellant, a liquid carrier, an antiperspirant active, and a dispensing package which contains the antiperspirant cream composition. The packaged antiperspirant cream compositions have improved stability, application aesthetics, and reduced syneresis. The dispensing package comprises 1) a container body having an interior chamber of generally uniform or symmetrical cross section which contains the antiperspirant cream composition and has a lengthwise extending axis, 2) an elevator having a cross section congruent to and mounted for axial movement within the interior chamber, 3) a perforated, convex dome attached to a dispensing end of the container body and having a plurality openings extending through the thickness of the perforated dome, 4) a means for axially advancing the elevator toward the perforated dome; and 5) an optional means for axially reciprocating the elevator away from the convex dome; wherein the means for axially advancing the elevator and the optional means for axially reciprocating the elevator cooperate to reciprocate the elevator a minimum distance D.sub.min. The dispensing package preferably has a select container body rigidity, a select convex configuration for the perforated dome and supporting elevator, and/or other means for reducing residual internal pressure, all of which help to minimize the development of solvent syneresis from the antiperspirant cream composition.

Claims104

Dependent claims

A packaged antiperspirant cream composition having a penetration force value of from about 75 gram.multidot.force to about 500 gram.multidot.force, wherein the composition comprises:

(a) from about 10% to about 80% by weight of a liquid carrier;
(b) from about 0.5% to about 35% by weight of an antiperspirant active;
(c) from about 0. 1% to about 40% by weight of a gellant;
and
(d) a dispensing package containing the antiperspirant cream composition, wherein the dispensing package comprises
i) a container body having an interior chamber having a lengthwise extending axis and which contains the antiperspirant cream composition, and a cross sectional area of the interior chamber perpendicular to the extending axis having a ratio of a major axis to minor axis of the cross sectional area from about 1.7:1 to about 5:1;
ii) an elevator having a cross section congruent to and mounted for axial movement within the interior chamber;
iii) a perforated dome attached to a dispensing end of the container body and having a plurality openings extending through the thickness of the perforated dome and covering from about 15% to about 80% of the total surface area of the perforated dome;
and
iv) a means for axially advancing the elevator toward the perforated dome and a means for axially reciprocating the elevator away from the perforated dome, said means for axially advancing the elevator and said means for axially reciprocating the elevator cooperating to retract the elevator away from the perforated dome a minimum distance for each predetermined increment of forward axial advancement of the elevator by the means for axially advancing toward the perforated dome, wherein the minimum retracting distance is determined by the expression D.sub.min =[V.sub.max -V.sub.rest ]/A wherein D.sub.min is the minimum retracting distance, V.sub.max is the maximum volumetric deformation of the container body during extrusion, V.sub.rest is the volumetric deformation of the container body prior to extrusion and "A" is the cross sectional area of the container body.

7 more elements

A packaged antiperspirant cream composition having a penetration force value of from about 75 gram.multidot.force to about 500 gram.multidot.force, wherein the composition comprises:

(a) from about 10% to about 80% by weight of a liquid carrier;
(b) from about 0.5% to about 35% by weight of an antiperspirant active;
(c) from about 0.1% to about 40% by weight of a gellant;
and
(d) a dispensing package containing the antiperspirant cream composition, wherein the dispensing package comprises
i) a container body having an interior chamber having a lengthwise extending axis and which contains the antiperspirant cream composition, and a cross sectional area of the interior chamber perpendicular to the extending axis having a ratio of a major axis to minor axis of the cross sectional area from about 1.7:1 to about 5:1;
ii) an elevator having a cross section congruent to and mounted for axial movement within the interior chamber,
iii) a perforated dome attached to a dispensing end of the container body and having a plurality openings extending through the thickness of the perforated dome and covering from about 15% to about 80% of the total surface area of the perforated dome;
and
a means for axially advancing the elevator toward the perforated dome and a means for axially reciprocating the elevator away from the perforated dome, said means for axially advancing the elevator and said means for axially reciprocating the elevator cooperating to retract the elevator away from the perforated dome a minimum distance for each predetermined increment of forward axial advancement of the elevator by the means for axially advancing toward the perforated dome, wherein minimum retraction distance is determined by the expression D.sub.min =k.sub.v .multidot.(P.sub.y -Y.sub.s)/A wherein D.sub.min is the minimum retracting distance, k.sub.v is the volumetric compliance coefficient, "A" is the cross sectional area of the container body, P.sub.y is the product yield pressure of the antiperspirant cream composition, and Y.sub.s is the static yield stress of the antiperspirant cream composition.

7 more elements

A packaged antiperspirant cream composition having a penetration force value of from about 75 gram.multidot.force to about 500 gram.multidot.force, wherein the composition comprises:

(a) from about 10% to about 80% by weight of a liquid carrier,
(b) from about 0.5% to about 35% by weight of an antiperspirant active;
(c) from about 0.1% to about 40% by weight of a gellant;
and
(d) a dispensing package containing the antiperspirant cream composition, wherein the dispensing package comprises
i) a container body having an interior chamber having a lengthwise extending axis and which contains the antiperspirant cream composition, and a cross sectional area of the interior chamber perpendicular to the extending axis having a ratio of a major axis to minor axis of the cross sectional area from about 1.1:1 to about 5:1;
ii) an elevator having a cross section congruent to and mounted for axial movement within the interior chamber;
iii) a perforated dome attached to a dispensing end of the container body and having a plurality openings extending through the thickness of the perforated dome and covering from about 39% to about 80% of the total surface area of the perforated dome;
and
iv) a means for axially advancing the elevator toward the perforated dome and a means for axially reciprocating the elevator away from the perforated dome, said means for axially advancing the elevator and said means for axially reciprocating the elevator cooperating to retract the elevator away from the perforated dome a minimum distance for each predetermined increment of forward axial advancement of the elevator by the means for axially advancing toward the perforated dome, wherein the minimum retracting distance is determined by the expression D.sub.min =[V.sub.max -V.sub.rest ]/A wherein D.sub.min is the minimum retracting distance, V.sub.max is the maximum volumetric deformation of the container body during extrusion, V.sub.rest is the volumetric deformation of the container body prior to extrusion and "A" is the cross sectional area of the container body.

7 more elements

A packaged antiperspirant cream composition having a penetration force value of from about 75 gram.multidot.force to about 500 gram.multidot.force, wherein the composition comprises:

(a) from about 10% to about 80% by weight of a liquid carrier;
(b) from about 0.5% to about 35% by weight of an antiperspirant active;
(c) from about 0.1% to about 40% by weight of a gellant;
and
(d) a dispensing package containing the antiperspirant cream composition, wherein the dispensing package comprises
i) a container body having an interior chamber having a lengthwise extending axis and which contains the antiperspirant cream composition, and a cross sectional area of the interior chamber perpendicular to the extending axis having a ratio of a major axis to minor axis of the cross sectional area from about 1.1:1 to about 5:1;
ii) an elevator having a cross section congruent to and mounted for axial movement within the interior chamber;
iii) a perforated dome attached to a dispensing end of the container body and having a plurality openings extending through the thickness of the perforated dome and covering from about 39% to about 80% of the total surface area of the perforated dome;
and
iv) a means for axially advancing the elevator toward the perforated dome and a means for axially reciprocating the elevator away from the perforated dome, said means for axially advancing the elevator and said means for axially reciprocating the elevator cooperating to retract the elevator away from the perforated dome a minimum distance for each predetermined increment of forward axial advancement of the elevator by the means for axially advancing toward the perforated dome, wherein minimum retraction distance is determined by the expression D.sub.min =k.sub.v .multidot.(P.sub.y -Y.sub.s)/A wherein D.sub.min is the minimum retracting distance, k.sub.v is the volumetric compliance coefficient, "A" is the cross sectional area of the container body, P.sub.y is the product yield pressure of the antiperspirant cream composition, and Y.sub.s is the static yield stress of the antiperspirant cream composition.

7 more elements

A packaged antiperspirant cream composition having a penetration force value of from about 75 gram.multidot.force to about 500 gram.multidot.force, wherein the composition comprises::

(a) from about 10% to about 80% by weight of a liquid carrier;
(b) from about 0.5% to about 35% by weight of antiperspirant active;
(c) from about 0.1% to about 40% by weight of a gellant;
and
(d) a dispensing package containing the antiperspirant cream composition, wherein the dispensing package comprises
i) a container body having an interior chamber having a lengthwise extending axis and which contains the antiperspirant cream composition, and a cross sectional area of the interior chamber perpendicular to the extending axis having a ratio of a major axis to minor axis of the cross sectional area from about 1:1 to about 5:1;
ii) a perforated dome attached to a dispensing end of the container body and having a plurality openings extending through the thickness of the perforated dome and covering from about 15% to about 80% of the total surface area of the perforated dome;
iii) an elevator having a cross section congruent to and mounted for axial movement within the interior chamber, said elevator having a convex configuration having a major curvature axis within about 10.degree. of a major curvature axis of the perforated dome, and a minor curvature axis within about 10.degree. of a minor curvature axis of the perforated dome;
and
iv) a means for axially advancing the elevator toward the perforated dome.

7 more elements

A packaged antiperspirant cream composition having a penetration force value of from about 75 gram.multidot.force to about 500 gram.multidot.force, wherein the composition comprises:

(a) from about 10% to about 80% by weight of a liquid carrier;
(b) from about 0.5% to about 35% by weight of an antiperspirant active;
(c) from about 0. 1% to about 40% by weight of a gellant;
and
(d) a dispensing package containing the anhydrous antiperspirant cream composition, wherein the dispensing package comprises:
i) a container body having an interior chamber having a lengthwise extending axis and which contains the antiperspirant cream composition, and a cross sectional area of the interior chamber perpendicular to the extending axis having a ratio of a major axis to minor axis of the cross sectional area from about 1:1 to about 5:1, said container body having a radius of the minor axis which expands no more than about 0.051 cm under 3 psi of internal pressure;
ii) a perforated dome attached to a dispensing end of the container body and having a plurality openings extending through the thickness of the perforated dome and covering from about 15% to about 80% of the total surface area of the perforated dome;
iii) an elevator having a cross section congruent to and mounted for axial movement within the interior chamber;
and
iv) a means for axially advancing the elevator toward the perforated dome;
wherein the antiperspirant cream composition within the dispensing package has a penetration force value of from about 75 gram.multidot.force to about 500 gram.multidot.force.

8 more elements

A packaged anhydrous antiperspirant cream composition comprising:

(a) from about 20% to about 80% by weight of a volatile silicone material;
(b) from about 5% to about 35% by weight of a particulate antiperspirant active;
(c) from about 0.1% to about 20% by weight of a crystalline gellant which comprises glyceryl tribehenate and other triglycerides wherein at least about 75% of the fatty acid ester moieties of said other triglycerides have from about 18 to about 36 carbon atoms and the molar ratio of glyceryl tribehenate to said other triglycerides is from about 20:1 to about 1:1 and the penetration force value of the composition ranges from about 75 gram.multidot.force to about 500 gram.multidot.force;
and
(d) a dispensing package containing the composition, wherein the dispensing package comprises
i) a container body having an interior chamber having a lengthwise extending axis and which contains the antiperspirant cream composition, and a cross sectional area of the interior chamber perpendicular to the extending axis having a ratio of a major axis to minor axis of the cross sectional area from about 1.7:1 to about 5:1;
ii) an elevator having a cross section congruent to and mounted for axial movement within the interior chamber;
iii) a perforated dome attached to a dispensing end of the container body and having a plurality openings extending through the thickness of the perforated dome and covering from about 15% to about 80% of the total surface area of the perforated dome;
iv) a means for axially advancing the elevator toward the perforated dome;
and
v) a means for axially reciprocating the elevator away from the perforated dome, said means for axially advancing the elevator and said means for axially reciprocating the elevator cooperating to retract the elevator away from the perforated dome a minimum distance for each predetermined increment of forward axial advancement of the elevator by the means for axially advancing toward the perforated dome.

8 more elements

A packaged anhydrous antiperspirant cream composition comprising:

(a) from about 20% to about 80% by weight of a volatile silicone material;
(b) from about 5% to about 35 % by weight of a particulate antiperspirant active;
(c) from about 0.1% to about 20% by weight of a crystalline gellant which comprises glyceryl tribehenate and other triglycerides wherein at least about 75% of the fatty acid ester moieties of said other triglycerides have from about 18 to about 36 carbon atoms and the molar ratio of glyceryl tribehenate to said other triglycerides is from about 20:1 to about 1:1 and the penetration force value of the composition ranges from about 75 gram.multidot.force to about 500 gram.multidot.force;
and
(d) a dispensing package containing the composition, wherein the dispensing package comprises
i) a container body having an interior chamber having a lengthwise extending axis and which contains the antiperspirant cream composition, and a cross sectional area of the interior chamber perpendicular to the extending axis having a ratio of a major axis to minor axis of the cross sectional area from about 1:1 to about 5:1;
ii) an elevator having a cross section congruent to and mounted for axial movement within the interior chamber;
iii) a perforated dome attached to a dispensing end of the container body and having a plurality openings extending through the thickness of the perforated dome and covering from about 39% to about 80 % of the total surface area of the perforated dome;
iv) a means for axially advancing the elevator toward the perforated dome;
and
v) a means for axially reciprocating the elevator away from the perforated dome, said means for axially advancing the elevator and said means for axially reciprocating the elevator cooperating to retract the elevator away from the perforated dome a minimum distance for each predetermined increment of forward axial advancement of the elevator by the means for axially advancing toward the perforated dome.

8 more elements

Dependencies are inferred from the claim text.