METHOD FOR OBTAINING SEMI-CRYSTALLINE POLYMER WITH NUCLEATING AGENTS OF CRYSTALLISATION Russian patent published in 2015 - IPC C08F10/00 C08F2/44 C08K3/00 C08K5/00 

FIELD: chemistry.

SUBSTANCE: invention relates to method of obtaining semi-crystalline polyolefin with nucleating agents of crystallisation by coordination polymerisation. Nucleating agent is processed with surface-active substance or modified with organoaluminium compound and dosed into polymerisation reactor in form of suspension in non-polar hydrocarbon or in form of suspension or solution in organoaluminium compound. Nucleating agent is introduced as part of catalytic system directly into polymerisation reactor, in which further synthesis is realised, and where nucleating agent represents inorganic substance, selected from the group, including talc, CaO, MgO, TiO₂, silicon dioxide (SiO₂), aluminium oxide (Al₂O₃), clay, graphite, carbon nanotubes and their combination, and where organic mucleating agent represents nucleating agent of non-sorbitol type.

EFFECT: obtaining material, possessing large tensile and flexural modulus, with preservation of material toughness, compatible with toughness of control sample without nucleating agents of crystallisation.

10 cl, 2 dwg, 3 tbl, 7 ex