Blow Molded Container

Abstract

The present invention is directed to a container comprising a retention mechanism for attaching a closure to an opening or neck of a container with a portion of the container body comprising a physical geometry that creates more than one undercut.

1 ) A container comprising:
 a) a retention mechanism for attaching a closure to an opening or neck of a container;   b) a portion of a container body comprising a physical geometry that creates more than one undercut.   
     
     
         2 ) A container according to  claim 1  wherein the portion of the container comprises a geometry of the container about a neck of a container and a closure interface of the container which is selected from the group consisting of concave, convex, linear, non-linear, mixtures of linear and non-linear, or mixtures thereof. 
     
     
         3 ) A container according to  claim 2  wherein the portion of the container comprises a non-linear geometry about a neck of the container and a closure interface of the container. 
     
     
         4 ) A container according to  claim 1  wherein the container comprises a geometry wherein the vertical side of the shoulder that has an interface with a closure has a positive draft angle of less than 10 degrees. 
     
     
         5 ) A container according to  claim 1  wherein the neck of the container is at least partially encompassed by a portion of a container body. 
     
     
         6 ) A container according to  claim 1  wherein the shoulder geometry can be modified and molded to use a same closure across different volumetric sized containers. 
     
     
         7 ) A container according to  claim 1  wherein the container is made by a process selected from the group consisting of extrusion blow molding, injection blow molding, injection stretch blow molding and mixtures thereof. 
     
     
         8 ) A container according to  claim 1  wherein the shoulder geometry is integrated with a closure. 
     
     
         9 ) A container according to  claim 1  wherein the retention feature is a male component in an interface or attachment of a closure. 
     
     
         10 ) A container according to  claim 9  wherein the retention feature has a depth of less than about 1.5 mm from a tip of the bead to a base or outer diameter of a neck. 
     
     
         11 ) A container according to  claim 1  wherein the retention feature is a female component in an interface or attachment of a closure. 
     
     
         12 ) A container according to  claim 11  wherein the retention feature has a depth of less than about 1.5 mm from an outer diameter of the neck to the base of the female retention feature. 
     
     
         13 ) A container according to  claim 1  wherein the container is comprised of a material selected from the group consisting of polyolefins such as polyethylene (PE) and polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), polylactic acid (PLA), polyethylene terephthalate (PET), or mixtures thereof. 
     
     
         14 ) A container according to  claim 1  wherein the container comprises two standing surfaces in a container geometry. 
     
     
         15 ) A container according to  claim 1  wherein features of the container are not deformed temporarily or permanently during removal from the molding cavity. 
     
     
         16 ) A container, manufactured by the process described in  claim 7 , which is composed of biodegradable polymers. 
     
     
         17 ) A container, manufactured by the process described in  claim 16 , wherein the biodegradable polymer is selected from the group consisting of polylactic acid (PLA), polyglycolic acid (PGA), polybutylene succinate (PBS), an aliphatic-aromatic copolyester based on terephthalic acid, an aromatic copolyester with a high terephthalic acid content, polyhydroxyalkanoate (PHA), thermoplastic starch (TPS), cellulose, or a mixture thereof.