STYRENE POLYMERISATION INHIBITOR COMPOSITION Russian patent published in 2010 - IPC C07C7/20 C07B63/04 C07C15/46 

FIELD: chemistry.

SUBSTANCE: invention relates to a styrene inhibitor composition containing N,N-dimethyl-3,5-di-tert-butyl-4-hydroxybenzylamine, C₇-C₁₇ saturated carboxylic acid, characterised by that, it additionally contains an unsaturated carboxylic acid with the following ratio of components in wt %: N,N-dimethyl-3,5-di-tert-butyl-4-hydroxybenzylamine 66.7-33.3, C₇-C₁₇ saturated carboxylic acid 30-6.6, unsaturated carboxylic acid 3.3-60.

EFFECT: use of the polymerisation inhibitor enables to reduce polymerisation of styrene due to reduction of the amount of thermopolymer formed from 1,13 wt % to 0 wt % with less consumption of the inhibitor.

1 cl, 36 ex, 1 tbl