One-piece, continuously blow molded container with rigid fitment

Abstract

A one-piece, blow molded fluoropolymer container, having a thin-walled, flexible bag portion and one or more rigid, thick-walled fitment, wherein the bag and the one or more rigid fitment are formed during the same blow molding process, from a continuous source of fluoropolymer material, to form a complete, one-piece, fully integrated container.

1 . A container, comprising:
 a thin-walled, bag, wherein said bag includes a wall comprised of flexible fluoropolymer film, said bag having an internal portion for storage of corrosive chemicals, and an external outer surface;   one or more rigid, thick-walled fitment, said fitment being a unitary member of the bag, said fitment having a neck and an orifice, wherein the fitment serves as a conduit from the orifice to the internal portion;   a transition area in said thin-walled bag, said transition area being comprised of intermediate thickness fluoropolymer film and located between the thin-walled bag and the one or more rigid fitment;   a closure portion, wherein said closure portion initially seals the orifice; and   a removable lid for selective engagement to the orifice of the fitment, to selectively seal and unseal the orifice.   
     
     
         2 . The container of  claim 1 , wherein the fitment selectively allows for corrosive chemicals to ingress into the internal portion and selectively allows for corrosive chemicals to egress from the internal portion. 
     
     
         3 . The container of  claim 2 , wherein the closure portion is selectively removed to allow for the filling of the container wherein a quantity of corrosive chemical is deposited within the orifice and is transmitted to, and retained within, the internal portion of thin-walled bag. 
     
     
         4 . The container of  claim 3 , wherein the removable lid is selectively engaged to the orifice to retain the corrosive chemicals within the thin-walled bag and to generally prevent unintentional dispersal of the corrosive chemicals. 
     
     
         5 . The container of  claim 4 , wherein the flexible fluoropolymer film, further comprises ethylene-chlorotrifluoroethylene (E-CTFE). 
     
     
         6 . The container of  claim 5 , wherein said container has an internal purity level of less than 15 Ct/ml particle contamination. 
     
     
         7 . The container of  claim 5 , wherein said container has an optical clarity with a haze number of less than 1.5% and a luminous light transmittance of 93%. 
     
     
         8 . The container of  claim 5 , wherein the fitment of said container may be adapted for use with a dispensing device. 
     
     
         9 . The container of  claim 5 , wherein the thickness of fluoropolymer film comprising the fitment is in the range of between 0.020 inch and 0.300 inch. 
     
     
         10 . The container of  claim 5 , wherein the thickness of fluoropolymer film comprising the thin-walled bag is in the range of between 0.002 inch and 0.157 inch. 
     
     
         11 . The container of  claim 5 , wherein the thickness of fluoropolymer film comprising the transition area located between the thin-walled bag and the one or more rigid fitment is in the range of between 0.020 inch and 0.157 inch. 
     
     
         12 . A container, comprising:
 a thin-walled bag, wherein said thin-walled bag has an internal portion and an external portion;   a thick-walled fitment having an orifice, wherein the fitment is engaged to said thin-walled bag;   a transition area in said thin-walled bag, said transition area being located between the thin-walled structure and the thick-walled fitment;   a closure portion, wherein said closure portion initially seals the orifice; and   a removable lid for selective engagement to the orifice to selectively seal, and unseal, the fitment.   
     
     
         13 . The container in  claim 12 , wherein said container is comprised of a flexible fluoropolymer film. 
     
     
         14 . The container of  claim 13 , wherein flexible fluoropolymer film, further comprises ethylene-chlorotrifluoroethylene (E-CTFE). 
     
     
         15 . The container of  claim 14 , wherein a corrosive chemical may be delivered to the orifice of the fitment and thereafter said corrosive chemical is conveyed into the orifice and through a neck of the fitment, and said corrosive chemical is retained within the internal portion of the thin-walled bag. 
     
     
         16 . The container of  claim 15 , wherein the fitment of said container is adapted for use with a dispensing device to selectively dispense corrosive chemicals. 
     
     
         17 . A container, comprising:
 a thin-walled structure, wherein said thin-walled structure has an internal portion and an external portion;   a thick-walled fitment engaged to said thin-walled structure;   a transition area between the thin-walled structure and the thick-walled fitment;   a closure portion, wherein said closure portion initially seals the orifice; and   a removable lid for selective engagement to the orifice to selectively seal, and unseal, the fitment.   
     
     
         18 . The container of  claim 17 , wherein the said container is comprised of a flexible fluoropolymer film. 
     
     
         19 . The container of  claim 18 , wherein flexible fluoropolymer film, further comprises ethylene-chlorotrifluoroethylene (E-CTFE). 
     
     
         20 . The container of  claim 19 , wherein a quantity of corrosive chemical substance is conveyed to the internal portion of said thin-walled bag.