METHOD OF PRODUCING BIODEGRADABLE MATERIAL AND BIODEGRADABLE MATERIAL PRODUCED USING SAID METHOD Russian patent published in 2016 - IPC C08L67/04 C08L101/16 C08B3/08 

Abstract RU 2577574 C1

FIELD: biotechnologies.

SUBSTANCE: invention relates to production of biodegradable materials using decomposers, as well as biodegradable polymer composition. Method of producing biodegradable material involves acylation of cellulose with lactic acid in non-aqueous medium, extraction, mixing with polylactic acid and extrusion, cellulose source used is cellulose-containing wastes, which is mixed with lactic acid and placed into disintegrator-activator of impact action, in which it is treated at temperature not higher than 70°C with energy of impact of 600-800 kJ per 1 kg of mixture with provision of replacement of hydrogen at least one hydroxyl group macromolecule cellulose lactic acid residue. Biodegradable material produced using method of producing biodegradable material contains a reaction product of cellulose and lactic acid as a filler and binder polylactic acid. As cellulose cellulose-containing wastes are used, ash content in biodegradable material is 4.0-10.0%.

EFFECT: technical result consists in production of biodegradable polymer composition, which is mainly based on natural ecologically acceptable products, providing environmental safety and simplicity of method.

11 cl, 2 tbl, 2 ex

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RU 2 577 574 C1

Authors

Shinkarev Sergej Mikhajlovich

Aksenov Aleksandr Vasilevich

Vishnevetskij Mikhail-Samuil

Dates

2016-03-20Published

2014-12-05Filed