Patent · US Active

Biodegradable plastic and use thereof

US9010338B2 · kind B2 · utility

3Cited by

4References

12Claims

0Family size

Assignee

SOLVAY ACETOW GmbH · DE

Inventors

Paul Rustemeyer · Gundelfingen, DE
Wolfgang Koppe · Stavanger, NO
Dirk Hölter · Emmendingen, DE

Key dates

Filing date	Sep 17, 2009
Grant date	Apr 21, 2015
Priority date	—
Expiry date	Jan 3, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2201/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a biodegradable plastic having increased biodegradation speed. Said plastic comprises a) finely distributed particle of a biodegradable, water-soluble, organic component, and b) finely distributed particles of a water-soluble, inorganic component promoting the growth of microorganisms and comprising N, P, and/or S. Said plastic is particularly based on cellulose esters such as cellulose acetate. Preferable components A are water-soluble saccharides and/or water-soluble organic acids. Said particularly advantageous biodegradable plastic is particularly available in the form of fibers, films, injection molded items, granulate beads, and containers. Controlled-release biocides and/or fertilizers can also be included in the molded part, wherein the molded part is degraded faster in the environment as said ingredients are released. The accelerated biodegradation is based on a synergistic interaction of the components indicated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.