Heat-shrinkable sheet

Details Heat-shrinkable sheet Heat-shrinkable sheet

1987-07-10

1988-03-29

Van Balen, William J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

4283186, 4283188, 4283197, 4283199, 428913, B32B 326

Patent

active

047343044

ABSTRACT:
A heat-shrinkable sheet made of a foamed thermoplastic resin having a number of cells and which is adapted to cover a fragile container such as a glass bottle, is heat-shrunk so that said sheet can stick to the container. The cells of the sheet are burst, i.e., opened or collapsed, so that the surface of the sheet which contacts the surface of a container is formed in a convexo-concave surface, which facilitates the entry of boiling water or cooling water between the sheet and the surface of the container when the sheet is adhered to the container.

REFERENCES:
patent: 3760968 (1973-09-01), Amberg et al.
patent: 3979000 (1976-09-01), Karabedian
patent: 4463861 (1984-08-01), Tsubone et al.
patent: 4626455 (1986-12-01), Karabedian

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