Sponge

Details Sponge Sponge

1977-05-11

1978-08-01

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

15209R, 428296, 428297, 428317, 428425, 427244, D04H 168, B32B 326, B32B 520

Patent

active

041044355

ABSTRACT:
A sponge includes a three-dimensional fibrous reticular structure formed of fibers randomly arranged and connected to each other at points where they intersect, and a body of compressibly resilient foamed material formed around the fibrous structure to fill and engulf the fibrous structure with the foamed material intimately bonded to the fibers to form an integral and resilient sponge. Portions of the fibers extend outward from at least one surface of the sponge, and the fiber structure is stronger and more abrasive than the foamed material. Also, the ratio by weight of the foamed material to the total weight including the fibrous structure ranges from 20 to 80%.

REFERENCES:
patent: 3362862 (1968-01-01), King
patent: 3464872 (1969-09-01), Everett
patent: 3861993 (1975-01-01), Guthrie
patent: 3974319 (1976-08-01), Alibeckoff

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