Multiple layer preform

Details Multiple layer preform Multiple layer preform

1995-03-01

1998-06-02

Dye, Rena

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

4285428, 4289033, 215 122, 215379, 215382, 220455, B29B 1114, B29C 4922

Patent

active

057596549

ABSTRACT:
An injection molding process for making a multiple layer, plastic structure. A plastic sleeve is placed and then enclosed in a mold cavity. A flowing heated plastic is conducted into the mold cavity, radially inside the sleeve, and forced radially outward against the sleeve. The flowing plastic forces the sleeve outward and forms, with the sleeve, an integrally bonded laminated structure. The mold is opened and the plastic structure is removed, and this structure may then be reformed to form a container particularly suitable for containing beverages, foods, cosmetics, pharmaceuticals and chemicals.

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