METHOD FOR ZINC DIMETHACRYLATE PREPARATION Russian patent published in 2017 - IPC C07C57/04 C07C57/07 C07C51/02 C01G9/00 C07C51/41 

FIELD: chemistry.

SUBSTANCE: invention relates to methacrylic acid zinc salt - Zn dimethacrylate, which can be used as an activator in sulfur vulcanization systems with an accelerator for rubber compounds preparation, as well as biocides, intended for combating pathogenic microorganisms, for creation of differentvarious products with biocidal properties. The method comprises aqueous sodium hydroxide addition to methacrylic acid and water under cooling, at a molar ratio of 1:1, followed by vigorous stirring at a temperature not higher than 50°C, addition of zinc chloride aqueous solution to the resulting sodium salt of methacrylic acid by equal portions at a molar ratio of 2:1, at a temperature not higher than 40°C, formed product isolation by filtration, washing with water, squeezing and drying at a temperature of 100-110°C.

EFFECT: simplified method due to hardware design simplicity, no need to apply high temperature and catalysts.

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