Container assembly

Abstract

A container assembly for retaining a moisture-sensitive material has a selectively resealable outer container defining a chamber, where a bond portion of an inner surface of the outer container is formed of ultrasonically weldable material. The container assembly also has an inner container having a humidity-control substance, where the inner container is disposed within the chamber. The humidity-control substance is in humidity transferable communication with the chamber. A bond portion of an outer surface of the inner container is formed of ultrasonically weldable material. The bond portions of the outer and inner containers are ultrasonically welded to each other to fix the position of the inner container within the chamber of the outer container.

1 - 14 . (canceled)  
   
   
       15 . A container assembly for retaining a moisture-sensitive material therein, the container assembly comprising: 
 a selectively resealable outer container defining a chamber therein;    a moisture-sensitive dental material stored in the chamber;    an inner container disposed within the chamber of the outer container to expose a humidity-control substance to the chamber, wherein the inner container is bonded to the outer container; and    a humidity-control substance contained in the inner container, the substance being capable of adsorbing and releasing moisture.    
   
   
       16 . The container assembly of  claim 15  wherein the inner container is disposed on a bottom wall of the outer container.  
   
   
       17 . The container assembly of  claim 15  wherein the inner container is disposed on a side wall of the outer container.  
   
   
       18 . The container assembly of  claim 15  wherein the inner container is shaped to minimize interference with the transfer of moisture-sensitive material into or out of the chamber.  
   
   
       19 . The container assembly of  claim 15  wherein the outer container has a single opening for access to the chamber therein, and wherein the outer container has a cap for resealably covering the opening.  
   
   
       20 . The container assembly of  claim 19  wherein the cap is flexibly attached to the outer container.  
   
   
       21 . The container assembly of  claim 19  wherein the cap is shaped to sealably cover the opening by an interference friction fit with portions of the outer container adjacent the opening.  
   
   
       22 . The container assembly of  claim 15  wherein the inner and outer containers are made of ultrasonically weldable polymeric materials.  
   
   
       23 . The container assembly of  claim 15 , wherein the moisture-sensitive dental material is contained in a plurality of capsules.  
   
   
       24 . The container assembly of  claim 15 , wherein the moisture-sensitive dental material is in powdered form.  
   
   
       25 . The container assembly of  claim 15 , wherein the inner container is ultrasonically bonded to the outer container.