Foamed polymeric article and method for making the same

Details Foamed polymeric article and method for making the same Foamed polymeric article and method for making the same

1974-06-24

1977-01-11

Anderson, Philip

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

156218, 156245, 156290, 215 1C, 249 79, 249 95, 264241, 264321, 425817R, 428315, 428 36, B29C 2702, B29D 2300, B29D 2700, B65D 910

Patent

active

040027872

ABSTRACT:
A hollow shaped article is formed from a preformed sheet of foamed thermoplastic material wherein a joint is formed along the length of two abutting edges of the preformed sheet at the sheet's surfaces but inwardly of the surfaces the abutting edges are left unbonded. The process for forming the articles is characterized by flexing the preformed sheet into the desired general shape, placing it into a two-part mold, and then heating it in two heating steps.

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Brydson; J. A., "Plastics Materials", Princeton, N.J., D. Van Nostrand, c. 1966, pp. 33-37, 123, 124.

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