METHOD OF OBTAINING SUSPENSION POLYVINYL CHLORIDE Russian patent published in 2009 - IPC C08F114/06 

FIELD: chemistry.

SUBSTANCE: method of obtaining polyvinyl chloride is realised by means of suspension polymerisation of vinyl chloride in presence of protecting colloid, poorly dissolving initiator, 2,6-di-tret-butyl-2-methylphenol, before charging VC, Zn-containing glycerin mono-oleate or Zn-Mg-containing glycerin mono-oleate in amount 0.03-0.06% of VC weight is introduced into polymerisation recipe composition. In order to enhance thermostabilisation effect, before monomer feeding, Ca stearate or Ca-Zn stearate is introduced into reaction mixture in amount, % of VC weight: -0.03-0.06.

EFFECT: obtaining polymer with higher thermostability, with high ability to absorb plastificator and improved morphologic homogeneity.

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