Blended thermoformable RF sealable plastic

Details Blended thermoformable RF sealable plastic Blended thermoformable RF sealable plastic

2006-02-28

2006-02-28

Smith, Scott A. (Department: 3721)

Package making

Methods

Forming or partial forming a receptacle and subsequent filling

C053S523000, C053S524000, C053S525000

Reexamination Certificate

active

07003930

ABSTRACT:
A thermoformable, RF-sealable material for use in packaging. The material is produced from a blend including between approximately 5% and 50% by weight of PETG, and between approximately 50% and 95% by weight of PET. A small amount of color concentrate may be added to the blend. The blend may be extruded into sheets and thermoformed to produce packaging material.

REFERENCES:
patent: 4246381 (1981-01-01), Robeson
patent: 5244091 (1993-09-01), Tannenbaum
patent: 5756578 (1998-05-01), Hanes
patent: 5859116 (1999-01-01), Shih
patent: 6401926 (2002-06-01), Lo
patent: 6599994 (2003-07-01), Shelby et al.

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