Enhanced paper and paperboard biodegradability

Details Enhanced paper and paperboard biodegradability Enhanced paper and paperboard biodegradability

1991-06-11

1993-10-05

Sluby, P. C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428329, 428330, 4285377, 428543, 428689, 428697, 428913, 524 47, B32B 516, C08L 300

Patent

active

052503534

ABSTRACT:
Paper and paperboard materials having enhanced biodegradability are produced by treatment of substrates with aqueous chemical solutions having properties which increase the decomposition of the substrates so treated. The chemical solutions consist of chemical nutrients which provide a source of alternate electron acceptors to enhance biodegradability through facultative anaerobic decomposition or chemical nutrients which, increase microbial growth on the paper or paperboard thereby enhancing decomposition of the paper or paperboard. The chemical solutions are absorbed and retained in the substrate or incorporated directly into a slurry of fibrous based material and formed into a paper product using paper making apparatus. In both instances, the methods enhance the biodegradability of the paper or paperboard so treated.

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patent: 4923565 (1990-05-01), Fuentes et al.
Wochenblatt Fuer Papierfabrikation, Jan. 30, 1984, pp. 49-58.

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