STABILISER MIXTURE FOR HALOGEN-CONTAINING PLASTICS OBTAINED BY UNDERWATER PELLETISATION Russian patent published in 2016 - IPC B01J2/20 C08K9/00 C08K13/02 

Abstract RU 2572891 C2

FIELD: chemistry.

SUBSTANCE: invention relates to pelletised mixtures of stabilisers for halogen-containing plastics. A method of producing a pelletised stabiliser mixture includes (a) heating, to 40-100°C in an extruder or kneader, a mixture which includes a lubricant, a substance having stabilising activity, auxiliary agents and additives, (b) forcing the material through a pelletising die, (c) carrying out die-face pelletisation under water, (d) transporting the pelletised stabiliser mixture in a stream of water, (e) extracting the pelletised stabiliser mixture from the water, and (f) drying. The invention also provides pelletised stabiliser mixtures obtained using said method, and use thereof for halogen-containing plastics.

EFFECT: invention provides a less dusting pelletised stabiliser mixture having reduced abrasion and good miscibility with dispersion components and halogen-containing plastics.

6 cl, 2 tbl, 1 ex

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RU 2 572 891 C2

Authors

Rajt Val'Ter

Dates

2016-01-20Published

2011-02-08Filed