COMPOSITION OF POLYMER COMPOSITE MATERIAL Russian patent published in 2025 - IPC C08L23/12 C08L97/02 C12N9/00 

FIELD: chemistry.

SUBSTANCE: invention relates to composition of polymer composite material and can be used in construction, automotive industry, machine building and other industries. Disclosed is a composition of a polymer composite material containing the following, wt.%: 49.5–50.0 of rice husks wastes, 0.5 of a substance containing protease enzymes with activity of at least 7500 units/g and cellulase with activity of at least 45 units/g, which are dried enzymatic extracts obtained by submerged cultivation Aspergillus niger ATCC 16888 (2%), Bacillus subtilis ATCC 6633 (2%), Trichoderma longibrachiatum ATCC 26921 (2%), filler is calcium carbonate (94%), 0.1 of ester of 3,5-di-tert-butyl-4-hydroxyphenyl propionic acid and pentaerythritol and 49.4–49.9 of polypropylene.

EFFECT: increase in the flexural modulus of elasticity to 16%, increase in the water absorption resistance to 23% with holding for 2 hours in boiling water, increased water absorption for 14 days at 23 °C, high impact strength at - 40 °C.

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