MONOVYNILIDENE AROMATIC POLYIMERSIC COMPOUNDS WITH IMPROVED PROPERTIES AND A METHOD OF THEIR PRODUCTION Russian patent published in 2005 - IPC

FIELD: methods of production of improved monovylilidene aromatic polymeric compounds.

SUBSTANCE: the invention presents a modified by caoutchouc monovylilidene aromatic polymeric compound containing: a) a die of the monovylilidene aromatic polymeric compound, b) dispersed in it particles of the caoutchouc differing that the particles of caoutchouc are gained from the diene caoutchouc containing I) a high-molecular weight component and II) a low molecular weight component. At that the high-molecular weight component has an average weight molecular mass, which at least in two and a half times exceeding the average weight molecular mass of the low molecular weight component, where in both component I and II the share of 1.4-cis elements exceeds 80 percents and at that the die of the monovylilidene aromatic polymeric compound is formed at a graft of the monovylilidene aromatic polymeric compound to caoutchouc in such a degree, that in the form of the grafts on the caoutchouc percents at least 30 percent of the monovylilidene aromatic polymeric compound to the mass of caoutchouc. The invention presents also the method of its production and the article produced from the modified caoutchouc.

EFFECT: the invention presents a modified by caoutchouc monovylilidene aromatic polymeric compound, the method of its production and the article produced from the modified caoutchouc.

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