1,3-diethers and components and catalysts for the polymerization of olefins, containing said diethers
AssigneeBasell Poliolefine Italia S.r.l.
InventorsGiampiero Morini, Enrico Albizzati, Giulio Balbontin, Giovanni Baruzzi, Antonio Cristofori
Life of this patent
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Abstract
Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of: i. a solid catalyst component containing an internal donor; ii. an Al-alkyl compound, and optionally iii. an external donor; the internal donor and/or the external donor being cyclopolyenic 1,3-diethers. The catalysts are useful for the polymerization of alpha-olefins.
Claims29
A solid catalyst component for the polymerization of olefins, comprising
- a magnesium halide in active form, and, supported thereon,
- a titanium compound containing at least one Ti-halogen bond and
- a cyclopolyenic 1,3-diether in which only the carbon atom in position 2 belongs to a cyclic or polycyclic structure made up of 5, 6, or 7 carbon atoms, or 5-n or 6-n′ carbon atoms, and respectively n atoms of nitrogen and n′ heteroatoms selected from the group consisting of N, O, S and Si, where n is 1 or 2 and n′ is 1, 2 or 3,
- wherein said structure contains two or three unsaturations and optionally
- is condensed with other cyclic structures,
- or is substituted with one or more substituents selected from the group consisting of linear or branched alkyl radicals;
- cycloalkyl, aryl, aralkyl, alkaryl radicals and halogens,
- or is being condensed with other cyclic structures and substituted with one or more of the above mentioned substituents which can also be bonded to the condensed cyclic structures;
- one or more of the above mentioned alkyl, cycloalkyl, aryl, aralkyl or alkaryl radicals and the condensed cyclic structures optionally containing one or more heteroatoms as substitutes for carbon or hydrogen atoms, or both.
A catalyst for the polymerization of olefins comprising the product of the reaction between:
- a1) a solid catalyst component comprising a magnesium halide in active form and, supported thereon, a titanium compound containing at least one Ti-halogen bond and an electron donor compound;
- b) an Al-alkyl compound;
- c) a cyclopolyenic 1,3-diether in which only the carbon atom in position 2 belongs to a cyclic or polycyclic structure made up of 5, 6, or 7 carbon atoms, or 5-n or 6-n′ carbon atoms, and respectively n atoms of nitrogen and n′ heteroatoms selected from the group consisting of N, O, S and Si, where n is 1 or 2 and n′ is 1, 2 or 3,
- wherein said structure contains two or three unsaturations and optionally
- is condensed with other cyclic structures,
- or is substituted with one or more substituents selected from the group consisting of linear or branched alkyl radicals;
- cycloalkyl, aryl, aralkyl, alkaryl radicals and halogens,
- or is being condensed with other cyclic structures and substituted with one or more of the above mentioned substituents that can also be bonded to the condensed cyclic structures;
- one or more of the above mentioned alkyl, cycloalkyl, aryl, aralkyl or alkaryl radicals and the condensed cyclic structures optionally containing one or more heteroatoms as substitutes of carbon or hydrogen atoms, or both.
Dependencies are inferred from the claim text.