Sealable container linings and sealable containers

Abstract

A sealable container includes a substantially rigid housing having an inner surface and an opening and a liner including: a) a collar formed at least from a fluoropolymer material and sized and shaped to removably engage the opening in the housing; and b) a flexible bag, having an opening, sealed to the collar, and including a composite of an abrasion resistant reinforcing material and an inner fluoropolymer material that is substantially inert to content in the container and compatible with the fluoropolymer material of the collar, the bag being sized and shaped to pass through the opening in the housing and expand such that the abrasion resistant reinforcing material can be in contact with at least a substantial portion of the inner surface of the housing.

1 . A sealable container comprising:
 a substantially rigid housing having an inner surface and an opening; and   a liner comprising:
 a) a collar formed at least from a fluoropolymer material and sized and shaped to removably engage the opening in the housing; and 
 b) a flexible bag, having an opening, sealed to the collar, and comprising a composite of an abrasion resistant reinforcing material and an inner fluoropolymer material that is substantially inert to contents of the container and compatible with the fluoropolymer material of the collar, 
 the bag being sized and shaped to pass through the opening in the housing and expand such that an outer surface of the bag can be in contact with at least a substantial portion of the inner surface of the housing. 
   
     
     
         2 . The sealable container of  claim 1 , wherein the inner fluoropolymer material is formed from at least one material selected from the group consisting of PFA (perfluoroalkoxy), PTFE (polytetrafluoroethylene), ECTFE (ethylene chlorotrifluoroethylene), FEP (fluorinated ethylene propylene) and ETFE (ethylene tetrafluoroethylene). 
     
     
         3 . The sealable container of  claim 1 , wherein the collar and the inner fluoropolymer material are heat welded together. 
     
     
         4 . The sealable container of  claim 1 , wherein the abrasion resistant reinforcing material is at least one selected from the group consisting of a fiberglass web, an LDPE layer and a polyamide layer. 
     
     
         5 . The sealable container of  claim 1 , further comprising an adhesive layer positioned between the abrasion resistant reinforcing material and the inner fluoropolymer material. 
     
     
         6 . The sealable container of  claim 1 , wherein the bag has a thickness of about 0.002 inches (0.0508 mm) to about 0.010 inches (0.254 mm) 
     
     
         7 . The sealable container of  claim 1 , wherein the inner fluoropolymer material is cast over at least one side of the abrasion resistant reinforcing material. 
     
     
         8 . A sealable container lining comprising:
 a collar formed at least from a fluoropolymer material and sized and shaped to removably engage an opening in a liner housing; and   a flexible bag, having an opening, sealed to the collar, and comprising a composite of an abrasion resistant reinforcing material and an inner fluoropolymer material that is substantially inert to contents of the lining and compatible with the fluoropolymer material of the collar,   the bag being sized and shaped to pass through the opening in the housing and to expand such that an outer surface of the bag can be in contact with at least a substantial portion of an inner surface of the housing.   
     
     
         9 . The liner of  claim 8 , wherein the inner fluoropolymer material is formed from at least one material selected from the group consisting of PFA (perfluoroalkoxy), PTFE (polytetrafluoroethylene), ECTFE (ethylene chlorotrifluoroethylene), FEP (fluorinated ethylene propylene) and ETFE (ethylene tetrafluoroethylene). 
     
     
         10 . The liner of  claim 8 , wherein the collar and the inner fluoropolymer material are heat welded together. 
     
     
         11 . The liner of  claim 8 , wherein the abrasion resistant reinforcing material is at least one selected from the group consisting of a fiberglass web, an LDPE layer and a polyamide layer. 
     
     
         12 . The liner of  claim 1 , wherein the bag has a thickness of about 0.002 inches (0.0508 mm) to about 0.010 inches (0.254 mm) 
     
     
         13 . The liner of  claim 8 , wherein the inner fluoropolymer material is cast over at least one side of the abrasion resistant reinforcing material. 
     
     
         14 . A sealable container for solvents comprising:
 a substantially rigid housing having an inner surface and an opening; and   a liner comprising:
 a collar formed at least from a fluoropolymer material which is at least one selected from the group consisting of PFA and PTFE and sized and shaped to removably engage the opening in the housing; and 
 a flexible bag, having a thickness of about 0.002 inches (0.0508 mm) to about 0.010 inches (0.254 mm) and an opening, heat sealed to the collar, and comprising a composite of an abrasion resistant reinforcing material which is at least one selected from the group consisting of a fiberglass web, an LDPE layer and a polyamide layer, and an inner fluoropolymer material that is substantially inert to contents of the liner, compatible with the fluoropolymer material of the collar and is at least one selected from the group consisting of PFA (perfluoroalkoxy), PTFE (polytetrafluoroethylene), ECTFE (ethylene chlorotrifluoroethylene), FEP (fluorinated ethylene propylene) and ETFE (ethylene tetrafluoroethylene), 
 the bag being sized and shaped to pass through the opening in the housing and to expand such that the abrasion resistant reinforcing material can be in contact with at least a substantial portion of the inner surface of the housing; and 
 a sealing member sized and shaped to attach the collar to the opening in the housing and sealingly close the flexible bag such that the collar is not movable and the contents of the liner are held in the container.