Coated paper-microfoam sheet packaging material

Details Coated paper-microfoam sheet packaging material Coated paper-microfoam sheet packaging material

1980-07-07

1981-04-21

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428247, 428251, 428285, 428286, 428294, 428305, 428311, 428315, 428412, 428513, B32B 702

Patent

active

042633605

ABSTRACT:
A padded sheet material for packaging a moisture-sensitive material has a layer of paper which is adhered on one side of a layer of a sealed cell microporous foam polymer, such as microfoam. It is coated on the other side with a layer of a polymer, which excludes the passage of drops of water, but transmits moisture vapor through it whereby any condensate within the package evaporates out through the material. The paper may be reinforced with strands of fiberglass to strengthen it.

REFERENCES:
patent: 4054711 (1977-10-01), Botsolas
patent: 4086384 (1978-04-01), Adelman et al.
patent: 4181767 (1980-01-01), Steinan
patent: 4204016 (1980-05-01), Chavannes

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