FIELD: chemistry.
SUBSTANCE: invention relates to a component of a catalyst for polymerisation of olefins, including magnesium, titanium, halogen and an electron donor, wherein said electron donor is selected from at least one compound based on a diol diester of formula (I), and in said compounds based on diol diester of formula (I), content of said diol diester of formula (II) in a Fischer projection is not less than 35 wt%: 
. Wherein in formula (I) and formula (II) R1 and R2 may be identical or different and represent C3-C20cycloalkyl, C6-C20aryl or C7-C20alkylaryl or an arylalkyl group wherein said hydrogen atom attached to a carbon atom in said cycloalkyl, aryl, alkylaryl or arylalkyl group may be optionally substituted by a halogen atom, but R1 and R2 can not both be C3-C20cycloalkyl; R3 and R4 may be identical or different and represent a hydrogen atom, a halogen atom, C1-C10unbranched alkyl, C3-C10branched alkyl, C3-C10cycloalkyl, C6-C10aryl or C7-C10alkylaryl or arylalkyl group, and R3 and R4 may optionally be linked with each other to form a ring structure; and R5 and R6 may be identical or different and represent a halogen atom, C1-C10unbranched alkyl, C3-C10branched alkyl, C3-C10cycloalkyl, C6-C10aryl or C7-C10alkylaryl or arylalkyl group, and a hydrogen atom attached to a carbon atom of said alkyl, aryl, alkylaryl or arylalkyl group may be optionally substituted by a halogen atom. Catalyst for polymerisation of olefins includes a certain catalyst component, an alkylaluminium compound, an external electron-donor component. Prepolymerisation catalyst for polymerisation of olefins includes a solid catalyst and a prepolymer obtained via prepolymerisation of solid catalyst and olefin, wherein prepolymerisation efficiency ranges from 0.1 to 1,000 g of olefin per gram of solid catalyst component. Invention also relates to a method of polymerisation of olefins, which is carried out in presence of said catalyst component, said catalyst or prepolymerisation catalyst.
EFFECT: technical result is significant improvement of activity and stereospecificity of catalyst and isotactic index of obtained polymer with high melt index.
22 cl, 2 tbl, 13 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST COMPONENT FOR OLEFIN POLYMERISATION, CATALYST AND USE THEREOF | 2014 |
|
RU2673083C2 |
| CATALYST COMPOSITION FOR OLEFIN POLYMERISATION AND USE THEREOF | 2014 |
|
RU2715995C2 |
| CATALYST COMPONENT, CATALYST, AND PRE-POLYMERIZATION CATALYST INTENDED FOR OLEFIN POLYMERIZATION, AND METHOD FOR OLEFIN POLYMERIZATION | 2018 |
|
RU2776708C2 |
| COMPONENT OF CATALYST INTENDED FOR OLEFIN POLYMERISATION REACTION AND CATALYST CONTAINING IT | 2011 |
|
RU2580822C2 |
| CATALYST COMPONENT FOR POLYMERISATION OF PROPENE, METHOD FOR PRODUCTION THEREOF AND CATALYST CONTAINING THEREOF | 2015 |
|
RU2690192C2 |
| CATALYST COMPONENT FOR OLEFIN POLYMERIZATION, CATALYST AND THEIR APPLICATION | 2017 |
|
RU2758673C2 |
| CATALYST COMPONENT FOR OLEFIN POLYMERISATION AND CATALYST CONTAINING IT | 2015 |
|
RU2688689C2 |
| SOLID CATALYTIC COMPONENT FOR POLYMERIZATION OF OLEFINS, CATALYST CONTAINING IT, AND USE THEREOF | 2003 |
|
RU2298014C2 |
| CATALYST SYSTEM DESIGNED FOR OLEFIN POLYMERISATION AND ITS APPLICATION | 2020 |
|
RU2815481C2 |
| CATALYTIC COMPONENT FOR OLEFIN POLYMERIZATION, ITS PRODUCTION METHOD, AND CATALYST INCLUDING IT | 2019 |
|
RU2779192C2 |
