Absorbent planar structure and method of its manufacture

Details Absorbent planar structure and method of its manufacture Absorbent planar structure and method of its manufacture

1982-07-27

1985-12-17

Bell, James J.

Coating processes

Application to opposite sides of sheet, web, or strip

264 453, 427244, 427246, 427381, 428253, 428492, B05D 100

Patent

active

045592438

ABSTRACT:
The present invention provides for an absorbent planar structure or so-called "sponge cloth" as well as for the method of making such a structure. The absorbent planar structure itself is permeated with pores and comprises a latex-bonded fiber material optionally reinforced with a woven or knit material, a layer of known foamed plastic, non-woven fabric or abrasive fleece. The method for making such a structure dispenses with conventional pore formers and is characterized by forming a foam of the latex and fiber materials by use of a suitable gaseous medium. The foam thus obtained, after homogeneous mixing, is applied to a substrate and the fiber-containing latex foam is then coagulated by heat action, resulting in an open-pore structure which is stabilized by subsequent drying and vulcanization.

REFERENCES:
patent: 2832997 (1958-05-01), Bristol
patent: 3281258 (1966-10-01), Callahan
patent: 3311115 (1967-03-01), Mueller et al.
patent: 3657035 (1972-04-01), Politzer et al.
patent: 4130683 (1978-12-01), Michel et al.

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