Method for forming an expanded-resin container about a body

Details Method for forming an expanded-resin container about a body Method for forming an expanded-resin container about a body

1972-12-18

1976-04-20

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

206524, 264 467, 264 54, 264257, 264275, 425 4R, 425812, B29D 2704

Patent

active

039520820

ABSTRACT:
A body to be packaged is suspended on filaments in an upwardly open porous mold which is lined with a gas-pervious sheet material. The mold is capped and a synthetic resin is introduced therein and expanded, the air in the mold being displaced out through the mold walls, to completely encapsulate the body. The supporting filaments, extending from the package so formed can be drawn across each other to cut an opening in the package permitting the packaged body to be removed. The sheet material covers the outside of the package, being integral therewith, and protects the package while permitting it to be written on.

REFERENCES:
patent: 2780350 (1957-02-01), Simon et al.
patent: 2895603 (1959-07-01), Freeman
patent: 3204385 (1965-09-01), De Remer et al.
patent: 3431331 (1969-03-01), Pincus
patent: 3464540 (1969-09-01), Stark
patent: 3641725 (1972-02-01), Grisell
Whittington; LLoyd R. "Whittington's Dictionary of Plastics", Stamford, Conn., Technomic1968, preface; pp. 59-60.

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