Abstract:
Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of formula (I), where R1 and R2, independently, are selected from hydrogen and C 1 -C 15 hydrocarbon groups, optionally contain an heteroatom selected from halogen, P, S, N, O and Si, which can be fused together to form one or more closed cycles and A is a bivalent bridging group.
Abstract:
Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of Formula (I) in which R, R 1 and R 4 groups, equal to or different from each other, are C 1 -C 15 hydrocarbon groups and the R groups can be linked to form a cycle, R 2 -R 3 groups, equal to or different from each other, are selected from hydrogen and C 1 -C 15 hydrocarbon groups, the R 1 -R 4 groups can optionally contain an heteroatom selected from halogen, P, S, N,O and Si, n is an integer from 0 to 5 and said electron donor and Ti atoms being present in an amount such that their molar ratio is equal to, or lower than, 0.65.
Abstract:
Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) In which R 1 to R 4 groups, equal to or different from each other, are hydrogen, C 1 -C 15 hydrocarbon groups, optionally containing an heteroatom selected from halogen, P, S, N and S i ,, R 6 group is selected from C 1 -C 15 hydrocarbon groups optionally containing an heteroatom selected from halogen, P, S, N and Si, and R 5 is selected from phenyl groups mono or poly substituted with halogens, said groups R 1 -R 4 being also optionally linked to form a saturated or unsaturated mono or poly cycle.
Abstract:
A catalyst component for the polymerization of olefins comprising Mg, Ti and at least two electron donor compounds, one of which (A) belonging to specific diolesters and the other electron donor compound (B) being selected from aromatic monoesters of the following formula (B) in which R groups equal to or different from each other, are selected from C 1 -C 15 hydrocarbon groups which can be also linked to form one or more cycles, m is an integer from 1 to 5 and R 5 is a C 1 -C 15 alkyl group, said electron donors A and B being in amounts such that the A/B molar ratio is lower than 20.
Abstract:
A terpolymer of 1-butene, ethylene and a at least a C 8 -C 12 alpha-olefin derived units, containing from 0.1 % to 5 % by mole of ethylene derived units and from 1 from 20% by mol of C 8 -C 12 alpha-olefin derived units, endowed with the following properties : i) isotactic pentad mmmm higher than or equal to 90%; pentads (mmrr+mrrm) lower than 4 and pentad rmmr not detectable by 13 C NMR. ii) intrinsic viscosity (IV) measured in tetrahydronaphthalene at 135°C comprised between 0.8 and 5.0 dL/g; iii) the melting point measured by DSC (TmI) and the C 8 -C 12 alpha-olefin content fulfil the following relationship: TmI -0.3 wherein C is the molar content of C 8 -C 12 alpha-olefin derived units and TmI is the highest melting peak in the first melting transition measured by DSC otherwise the melting point TmI is not detectable.
Abstract:
Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) In which R 1 to R 4 groups, equal to or different from each other, are hydrogen, C 1 -C 15 hydrocarbon groups, optionally containing an heteroatom selected from halogen, P, S, N and S i ,, R 6 group is selected from C 1 -C 15 hydrocarbon groups optionally containing an heteroatom selected from halogen, P, S, N and Si, and R 5 is selected from phenyl groups mono or poly substituted with halogens, said groups R 1 -R 4 being also optionally linked to form a saturated or unsaturated mono or poly cycle.
Abstract:
A 1-butene polymer composition comprising: a) from 10% to 90% by weight of an isotactic 1-butene polymer having the following features: i) isotactic pentad (mmmm) measured by 13 C-NMR, higher than 90%; ii) melting point (TmII) higher than 90°C; and iii) intrinsic viscosity (IV) measured in tetrahydronaphthalene (THN) at 135°C comprised between 0.5 dl/g and 5.0 dl/g. b) from 90% to 10% by weight of a copolymer of 1-butene and at least a C 8 -C 12 alpha- olefin derived units, containing from 0% to 10% by mole of propylene or pentene derived units, and/or containing from 0% to 5% by mole of ethylene derived units having a content of C 8 -C 12 alpha-olefin derived units higher than 4.0% by mol and lower than 20.0% by mol; endowed with the following features: i) isotactic pentad mmmm higher than or equal to 90 %; pentads (mmrr+mrrm) lower than 4 and pentad rmmr not detectable by C NMR. ii) intrinsic viscosity (IV) measured in tetrahydronaphthalene at 135°C comprised between 0.8 and 5.0 dL/g; iii) the melting point measured by DSC (TmI) and the C 8 -C 12 alpha-olefin content fulfil the following relationship: TmI -0.3 wherein C is the molar content of C 8 -C 12 alpha-olefin derived units and TmI is the highest melting peak in the first melting transition; otherwise the melting point TmI is not detectable;
Abstract:
Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of Formula (I) in which R, R1 and R4 groups, equal to or different from each other, are C1-C15 hydrocarbon groups and the R groups can be linked to form a cycle, R2-R3 groups, equal to or different from each other, are selected from hydrogen and C1-C15 hydrocarbon groups, the R1-R4 groups can optionally contain an heteroatom selected from halogen, P, S, N, O and Si, n is an integer from 0 to 5 and said electron donor and Ti atoms being present in an amount such that their molar ratio is equal to, or lower than, 0.65.
Abstract:
A 1-butene polymer composition comprising: a) from 10% to 90% by weight of an isotactic 1-butene polymer having the following features: i) isotactic pentad (mmmm) measured by 13 C-NMR, higher than 90%; ii) melting point (TmII) higher than 90°C; and iii) intrinsic viscosity (IV) measured in tetrahydronaphthalene (THN) at 135°C comprised between 0.5 dl/g and 5.0 dl/g. b) from 90% to 10% by weight of a copolymer of 1-butene and at least a C 8 -C 12 alpha- olefin derived units, containing from 0% to 10% by mole of propylene or pentene derived units, and/or containing from 0% to 5% by mole of ethylene derived units having a content of C 8 -C 12 alpha-olefin derived units higher than 4.0% by mol and lower than 20.0% by mol; endowed with the following features: i) isotactic pentad mmmm higher than or equal to 90 %; pentads (mmrr+mrrm) lower than 4 and pentad rmmr not detectable by C NMR. ii) intrinsic viscosity (IV) measured in tetrahydronaphthalene at 135°C comprised between 0.8 and 5.0 dL/g; iii) the melting point measured by DSC (TmI) and the C 8 -C 12 alpha-olefin content fulfil the following relationship: TmI -0.3 wherein C is the molar content of C 8 -C 12 alpha-olefin derived units and TmI is the highest melting peak in the first melting transition; otherwise the melting point TmI is not detectable;