METHOD OF PRODUCING RIGID POLYVINYL CHLORIDE-BASED WOOD-POLYMER COMPOSITION Russian patent published in 2012 - IPC C08L97/02 C08L27/06 

FIELD: chemistry.

SUBSTANCE: method involves preparation of a polymer composition based on PVC, an impact strength modifier, a heat stabiliser, a binding agent and addition of modified wood flour. The wood flour is obtained by pre-saturating wood flour with aqueous solutions of binding agents of silica sol or carbon nanotubes, stirring the obtained mixture and drying.

EFFECT: wood-polymer materials based on the obtained highly filled rigid polyvinyl chloride composition have high tensile strength and thermal stability, low viscosity, flammability and water absorption.

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