POLYVINYL CHLORIDE WITH ENHANCED CHEMICAL STABILITY IN ORGANIC SOLVENTS AND ITS USING Russian patent published in 2006 - IPC C08F14/00 C08F114/06 C08L27/06 

FIELD: chemistry of high-molecular polymers.

SUBSTANCE: invention relates to polyvinyl chloride and its using. Proposed suspension polyvinyl chloride has Fickentcher's constant value K_f = 77-88, and it represents powder consisting of porous unclear particles characterizing the specific surface value 1.0-4.0 m²/g and the porosity value 0.27-0.42, and enhanced chemical stability in organic solvents also. Polyvinyl chloride is prepared by an aqueous-suspension polymerization of the reaction mixture comprising vinyl chloride, stabilizing agent and peroxide initiating agent at average polymerization temperature 35-42° and revolution rate of mixer 0.5-3.5 s^-1. Polyvinyl chloride with abovementioned indices is used for making different plasticized materials with improved physical-mechanical indices.

EFFECT: improved and valuable properties of polymer.

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