Method for decomposing polyesters containing aromatic...

Chemistry: molecular biology and microbiology – Micro-organism – per se ; compositions thereof; proces of... – Fungi

Reexamination Certificate

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C435S135000, C435S142000

Reexamination Certificate

active

06878537

ABSTRACT:
A polyester containing aromatic moieties is contacted with microorganisms having the activity of decomposing the polyester to decompose or reduce it. Preferably, either or both ofTrichosporonFERM BP-6445 orArthrobacterFERM BP-6444 was contacted with the polyester to decompose or reduce it. A fiber made of the polyester or a cloth made of such fiber may be reduced by contacting it with the microorganisms having the activity of decomposing the polyester.

REFERENCES:
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Huang et al., “Biodegradable Polymers: Photolysis and Fungal Degradation of Poly (arylene Keto Esters)”, J. Appl. Polymer Sci., vol. 25, S. 1951-1960 (1980).
“Report of the Fermentation Research Institute” 1992, pp. 23-32, Biosis Abstract 199294038680.
“New—Microorganisms- Used in Decomposition of Polyester(s)—decomposes Aliphatic and Aromatic Ester(s) and Metabolises Phthalic Acid” Daiichi Kogyo Seiyaku Co, Ltd., Derwent Abstract 1996-357085/36.
“Biochemical Decomposition of Polyesters by Contact with Lipase Or Lipase-Producible—Microorganism” Agency of Ind. Science and Technology, Derwent Abstract 1977-60145Y/25.
Derwent Computer Abstract 1996-357085 JP 08140666.
Derwent Computer Abstract 1977-60145Y JP 082009354.

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