METHOD OF PRODUCING POLYMER COMPOSITION FOR PIPES Russian patent published in 2014 - IPC C08L23/06 C08K7/02 C08J5/04 

FIELD: chemistry.

SUBSTANCE: invention relates to polymer material science and specifically to production of a composite dispersion reinforced material for making pipes based on medium-density low-pressure polyethylene PE80B and dispersion reinforcing filler. The method of producing the composite dispersion reinforced material involves mixing polyethylene PE80B and the dispersion reinforcing filler, selected from chopped carbon fibres of polyacrylonitrile or cellulose hydrate, in a melt at temperature of 180°C, followed by mechanically grinding the mixture to granule size of 2-5 mm to obtain a granular composite material. Further, the granular composite material is extruded at temperature of 180°C and roller speed of 30 rpm, or the granular composite material is pressed at temperature of 180°C and a load of 180 kN to obtain composite dispersion reinforced material.

EFFECT: simple process cycle of making composite dispersion reinforced material.

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