Dispensing Package

Abstract

Dispensing packages are disclosed that are capable of dispensing soft-solid type antiperspirant compositions employing actives having a metal to chloride ratio of less than or equal to 1.3, and that are capable of exhibiting minimal weeping in between uses.

1 ) A dispensing package, comprising:
 (a) a container body comprising an interior chamber to contain an antiperspirant composition and an applicator surface;   (b) an elevator including a cross section that is congruent to and mounted for axial movement within the chamber; and   (c) an actuator system comprising:
 i) a feed screw threadably engaged with the elevator, at least a portion of the feed screw situated within the interior chamber so that it would be exposed to a contained antiperspirant composition; and 
 ii) an actuator operatively connected to the feed screw for advancing the elevator within the chamber to dispense a portion of a contained antiperspirant composition, 
   wherein the actuator and feed screw are made from the same polymer, the polymer having a flexural modulus of from about 275 ksi to about 500 ksi and being resistant to acid degradation.   
   
   
       2 ) The dispensing package of  claim 1 , wherein the polymer is selected from the group consisting of acrylonitrile butadiene styrene, blend of polyphenylene ether and polystyrene, high density polyethylene, nylon, styrene acrylonitrile, polyethylene terephthalate glycol, polybutylene terephthalate, and mixtures thereof. 
   
   
       3 ) The dispensing package of  claim 1 , wherein the polymer comprises acrylonitrile butadiene styrene. 
   
   
       4 ) The dispensing package of  claim 1 , wherein a portion of the actuator is capable of flexing in a direction towards the applicator surface during rotation of the actuator. 
   
   
       5 ) The dispensing package of  claim 1 , wherein the actuator comprises an integrally formed return spring to retract the elevator so that weeping of the antiperspirant composition is minimized. 
   
   
       6 ) The dispensing package of  claim 5 , wherein the return spring is a triskelion shaped spring. 
   
   
       7 ) An antiperspirant product, comprising:
 (a) a dispensing package according to  claim 1 ; and   (b) an antiperspirant composition disposed in the interior chamber, the antiperspirant composition comprising an antiperspirant active that has a metal to chloride ratio of less than or equal to 1.3.   
   
   
       8 ) The dispensing package of  claim 7 , wherein the antiperspirant active has a metal to chloride ratio of from about 1.15 to 1.3. 
   
   
       9 ) A dispensing package, comprising:
 (a) a container body comprising an interior chamber to contain an antiperspirant composition and an applicator surface;   (b) an elevator including a cross section that is congruent to and mounted for axial movement within the chamber; and   (c) an actuator system comprising:
 i) a feed screw threadably engaged with the elevator, at least a portion of the feed screw situated within the interior chamber so that it would be exposed to a contained antiperspirant composition; and 
 ii) an actuator connected to the feed screw for advancing the elevator within the chamber to dispense a portion of a contained antiperspirant composition, 
   wherein each of the actuator and the feed screw are made from a polymer that is not polypropylene or acetal.   
   
   
       10 ) The dispensing package of  claim 9 , wherein the polymer is selected from the group consisting of acrylonitrile butadiene styrene, blend of polyphenylene ether and polystyrene, high density polyethylene, nylon, styrene acrylonitrile, polyethylene terephthalate glycol, polybutylene terephthalate, and mixtures thereof. 
   
   
       11 ) The dispensing package of  claim 9 , wherein the polymer comprises acrylonitrile butadiene styrene. 
   
   
       12 ) The dispensing package of  claim 9 , wherein a portion of the actuator is capable of flexing in a direction towards the applicator surface during rotation of the actuator. 
   
   
       13 ) The dispensing package of  claim 9 , wherein the actuator comprises an integrally formed return spring to retract the elevator so that weeping of the antiperspirant composition is minimized. 
   
   
       14 ) The dispensing package of  claim 13 , wherein the return spring is a triskelion shaped spring. 
   
   
       15 ) An antiperspirant product, comprising:
 (a) a dispensing package according to  claim 9 ; and   (b) an antiperspirant composition disposed within the interior chamber, the antiperspirant composition comprising an antiperspirant active that has a metal to chloride ratio of less than or equal to 1.3.   
   
   
       16 ) A dispensing package, comprising:
 (a) a container body comprising an interior chamber to contain an antiperspirant composition and an applicator surface;   (b) an elevator including a cross section that is congruent to and mounted for axial movement within the chamber; and   (c) an actuator system operatively connected to the elevator for advancing the elevator within the chamber to dispense a portion of a contained antiperspirant composition, the actuator system comprising a first section that flexes towards the applicator surface during advancement of the elevator and then rebounds away from the applicator surface to retract the elevator after the advancement, and a second section that is exposed to a contained antiperspirant composition,   wherein the first section and the second section are made from the same polymer, the polymer having a flexural modulus of from about 275 ksi to about 500 ksi and being resistant to acid degradation.   
   
   
       17 ) The dispensing package of  claim 16 , wherein the first section comprises a spring. 
   
   
       18 ) The dispending package of  claim 16 , wherein the polymer that is not polypropylene or acetal. 
   
   
       19 ) An antiperspirant product, comprising:
 (a) a dispensing package according to  claim 16 ; and   (b) an antiperspirant composition disposed within the interior chamber, the antiperspirant composition comprising an antiperspirant active that has a metal to chloride ratio of less than or equal to 1.3.   
   
   
       20 ) A dispensing package, comprising:
 (a) a container body comprising an interior chamber to contain an antiperspirant composition and an applicator surface;   (b) an elevator including a cross section that is congruent to and mounted for axial movement within the chamber; and   (c) an actuator system operatively connected to elevator for advancing the elevator within the chamber to dispense a portion of a contained antiperspirant composition, the actuator system comprising a first section that flexes towards the applicator surface during advancement of the elevator and then rebounds away from the applicator surface to retract the elevator after the advancement, and a second section that is exposed to a contained antiperspirant composition,   wherein the first section is made from a polymer having a flexural modulus of from about 275 ksi to about 500 ksi and the second section being resistant to acid degradation.   
   
   
       21 ) The dispensing package of  claim 20 , wherein the first section and second section are made by with a multi-material injection molding process. 
   
   
       22 ) The dispensing package of  claim 20 , wherein the first section and second section are made by with a multi-shot injection molding process. 
   
   
       23 ) The dispensing package of  claim 20 , wherein the first section and the second section are made separately from one another and subsequently connected together. 
   
   
       24 ) The dispensing package of  claim 20 , wherein the first section is made from a material comprising acetal and the second section is made from a material comprising polypropylene. 
   
   
       25 ) An antiperspirant product, comprising:
 (a) a dispensing package according to  claim 20 ; and   (b) an antiperspirant composition disposed within the interior chamber, the antiperspirant composition comprising an antiperspirant active that has a metal to chloride ratio of less than or equal to 1.3.