BIODEGRADABLE POLYMER COMPOSITION FOR PACKAGING PURPOSES Russian patent published in 2023 - IPC C08L29/04 B65D65/46 

Abstract RU 2805927 C1

FIELD: agriculture.

SUBSTANCE: production of biodegradable polymer composites containing a solution of polyvinyl alcohol and filler from plant waste, used in the production of thermoformed packaging products and films capable of biodegradation. Biodegradable polymer composition for packaging purposes, including 5 wt.% aqueous solution of fully hydrolyzed polyvinyl alcohol and a vegetable filler, which is used as sunflower husks or beet pulp, or brewer's grains with a particle size of less than 200 microns and a moisture content of less than 5%. To prepare the composition use 5 wt.% aqueous solution of polyvinyl alcohol with a concentration of 20…50 g/100 ml.

EFFECT: obtaining film materials for packaging with high stress-related properties at a reduced cost due to the use of agro-industrial waste.

1 cl, 1 tbl, 13 ex

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RU 2 805 927 C1

Authors

Kuzmin Anton Mikhailovich

Radaikina Elena Aleksandrovna

Dates

2023-10-24Published

2023-04-25Filed