POLYMER COMPOSITION Russian patent published in 2023 - IPC C08J3/205 C08L97/02 

FIELD: production of composite materials.

SUBSTANCE: The invention relates to the production of composite materials, concerns the development of a new organic filler from renewable raw materials and a polymer composition containing it and can be used for the production of engineering products in the construction and furniture industry, agricultural and automotive engineering, consumer goods and other industries. A polymer composition is proposed for the production of engineering products based on a polymer selected from a group of polymers based on vinyl chloride, its copolymers with vinyl acetate, ethylene, propylene, their copolymers, methyl methacrylate or mixtures thereof, as well as products of their recycling, containing filler and target additives. According to the invention, the composition used as a filler contains flour of coniferous cones and / or pine needles flour at the following ratio of components, pts. wt.: the specified polymer 5-50; flour of coniferous cones and/or pine needles flour 45-94.7; target additives 0.3-5.0.

EFFECT: The present invention provides a method for expanding the raw materials for the manufacture of polymer compositions while preserving the physico–mechanical, operational and technological characteristics of the resulting composition.

1 cl, 2 tbl