METHOD OF OBTAINING POLYCYANURATE Russian patent published in 2015 - IPC C08G73/00 C09D179/00 C09J179/00 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to a method of obtaining polycyanurate by polycyclotrimerisation of a dicyanate monomer or oligomer in the presence of a polyhedral oligomer silsesquioxane (POSS), in the presence of a catalyst by mixing at a higher temperature, placement of the obtained suspension into a metal mould, processed with an antiadhesion composition, first, with its cooling to 35°C and further heating from 35 to 320°C for 5 hours, with a cyanate monomer (oligomer) being mixed with 0.025-0.100 wt % of polyhedral oligomer silsesquioxane, containing cycloaliphatic epoxy-groups, and intensive mixing of the obtained suspension at a temperature of 170°C for 2 hours to realise chemical grafting between the components with further cooling and heating.

EFFECT: provision of more effective POSS dispersion in the polymer and an increased value of the elasticity modulus, vitrification temperature, creep onset temperature and temperature of the obtained material destruction.

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