Method of forming packaging material

Details Method of forming packaging material Method of forming packaging material

1990-04-18

1992-05-19

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264 51, B29C 6720

Patent

active

051146568

ABSTRACT:
An improved packaging material wherein a block, sheet or molded packaging material formed of molded expanded polystyrene is compressed under controlled conditions to increase the density of the packaging material and thereby increasing the deflection qualities and resiliency of the material.

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