Biodegradable and biocompatible agricultural mulch and method of

Details Biodegradable and biocompatible agricultural mulch and method of Biodegradable and biocompatible agricultural mulch and method of

1998-02-02

2000-12-26

Poon, Peter M.

Plant husbandry

Mulching

47 485, A01G 700

Patent

active

061640115

ABSTRACT:
The mulch comprises a sheet of paper having a thickness between 2 and 4 mils and a basis weight between about 40 g/m.sup.2 and 60 g/m.sup.2. The sheet has at least one face coated with a layer of polylactide, which is used in an amount such that it weighs between about 2 g/m.sup.2 and 15 g/m.sup.2. The preparation is carried out by depositing on the sheet an amount of a hot extruded liquid layer of polylactide such that when it solidifies, it weighs between about 2 g/m.sup.2 and 15 g/m.sup.2, and allowing the layer to solidify and adhere to the sheet, whereby forming the mulch.

REFERENCES:
patent: 3892552 (1975-07-01), Gay, Jr.
patent: 5138792 (1992-08-01), Allingham
patent: 5163247 (1992-11-01), Weber et al.
patent: 5446123 (1995-08-01), Gruber et al.
patent: 5458933 (1995-10-01), Suskind
patent: 5798436 (1998-08-01), Gruber et al.
Webster's Dictionary 9.sup.th Edition (definition of mulch), Dec. 14, 1998.

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