Patent classifications
C08F4/12
Oligomerization catalyst and method for preparing ethylene oligomer using same
The present invention relates to an oligomerization catalyst including a transition metal or transition metal precursor, a halogen-substituted organic ligand, and a heteroatom ligand, and to a method for selectively preparing 1-hexene or 1-octene from ethylene using the catalyst.
Oligomerization catalyst and method for preparing ethylene oligomer using same
The present invention relates to an oligomerization catalyst including a transition metal or transition metal precursor, a halogen-substituted organic ligand, and a heteroatom ligand, and to a method for selectively preparing 1-hexene or 1-octene from ethylene using the catalyst.
Low-viscosity concentrated solutions of alkaline earth metal alkoxides in aprotic solvents and processes for preparation thereof
A solution of a mixed alkaline earth alkoxide compound with an aluminum compound in an aprotic solvent, and methods of making and using them.
Low-viscosity concentrated solutions of alkaline earth metal alkoxides in aprotic solvents and processes for preparation thereof
A solution of a mixed alkaline earth alkoxide compound with an aluminum compound in an aprotic solvent, and methods of making and using them.
Preparation of isobutene homo- or copolymer derivatives
A process for preparing isobutene homo- or copolymer derivatives by (i) polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an iron halide-donor complex, an aluminum trihalide-donor complex, or an alkylaluminum halide-donor complex, (ii) reacting a resulting high-reactivity isobutene polymer with a compound which introduces a low molecular weight polar group or a substructure thereof, and (iii) in the case of reaction with a substructure, further reacting to complete the formation of the low molecular weight polar group. The homo- or copolymer derivatives include a radical of a hydrophobic polyisobutene polymer having a number-average molecular weight of 110 to 250 000 and low molecular weight polar groups including amino functions, nitro groups, hydroxyl groups, mercaptan groups, carboxylic acid or carboxylic acid derivative functions, sulfonic acid or sulfonic acid derivative functions, aldehyde functions and/or silyl groups.
Preparation of isobutene homo- or copolymer derivatives
A process for preparing isobutene homo- or copolymer derivatives by (i) polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an iron halide-donor complex, an aluminum trihalide-donor complex, or an alkylaluminum halide-donor complex, (ii) reacting a resulting high-reactivity isobutene polymer with a compound which introduces a low molecular weight polar group or a substructure thereof, and (iii) in the case of reaction with a substructure, further reacting to complete the formation of the low molecular weight polar group. The homo- or copolymer derivatives include a radical of a hydrophobic polyisobutene polymer having a number-average molecular weight of 110 to 250 000 and low molecular weight polar groups including amino functions, nitro groups, hydroxyl groups, mercaptan groups, carboxylic acid or carboxylic acid derivative functions, sulfonic acid or sulfonic acid derivative functions, aldehyde functions and/or silyl groups.
Concurrent Isomerization/Hydrogenation Of Unsaturated Polyalphaolefin In The Presence Of A High Activity Catalyst
Processes for making saturated isomerized polyalphaolefm by concurrently isomerizing and hydrogenating unsaturated polyalphaolefm in the presence of a high activity catalyst. Such processes can include contacting at least one unsaturated polyalphaolefm with a catalyst capable of both isomerizing and hydrogenating the polyalphaolefm, wherein the catalyst includes a zeolite or mesoporous material, the zeolite having a silica to alumina mole ratio of from about 5 to about 100 and an alpha value of from about 10 to about 1,000, and the mesoporous material having a collidine uptake of from about 100 μμmoles/g to about 500 μmoles/g, wherein a Group VIB to VIIIB metal is incorporated in the catalyst at a concentration of from about 0.01 wt % to about 60.00 wt %, and wherein the zeolite is selected from the group consisting of ZSM-48, ZSM-23, ZSM-12, ZSM-35, ZSM-11, ZSM-57, Beta zeolite, Mordenite zeolite, USY zeolite, zeolite having a MWW framework, and combinations thereof.
Concurrent Isomerization/Hydrogenation Of Unsaturated Polyalphaolefin In The Presence Of A High Activity Catalyst
Processes for making saturated isomerized polyalphaolefm by concurrently isomerizing and hydrogenating unsaturated polyalphaolefm in the presence of a high activity catalyst. Such processes can include contacting at least one unsaturated polyalphaolefm with a catalyst capable of both isomerizing and hydrogenating the polyalphaolefm, wherein the catalyst includes a zeolite or mesoporous material, the zeolite having a silica to alumina mole ratio of from about 5 to about 100 and an alpha value of from about 10 to about 1,000, and the mesoporous material having a collidine uptake of from about 100 μμmoles/g to about 500 μmoles/g, wherein a Group VIB to VIIIB metal is incorporated in the catalyst at a concentration of from about 0.01 wt % to about 60.00 wt %, and wherein the zeolite is selected from the group consisting of ZSM-48, ZSM-23, ZSM-12, ZSM-35, ZSM-11, ZSM-57, Beta zeolite, Mordenite zeolite, USY zeolite, zeolite having a MWW framework, and combinations thereof.
POLYMERIZATION PROCESS WITH A BORANE-AMINE COMPLEX
The invention relates to a process for polymerizing at least one radically polymerizable compound having at least one ethylenic bond in the presence of a borane complex BH3 with an amine as a radical initiator, said process comprising the steps of: providing a borane complex BH3 with an amine; and bringing the complex into contact with a composition comprising at least one radically polymerizable compound having at least one ethylenic bond; wherein the polymerization is performed in the absence of an oxidizing agent and/or an additional radical initiator other than the borane complex BH3 with an amine. The invention also relates to a composition comprising at least one radically polymerizable compound having at least one ethylenic bond and a borane complex BH3 with an amine, wherein the composition is free of an oxidizing agent and/or an additional radical initiator other than the borane complex BH3 with an amine, as well as the use of said composition as an adhesive for bonding two substrates together.
POLYMERIZATION PROCESS WITH A BORANE-AMINE COMPLEX
The invention relates to a process for polymerizing at least one radically polymerizable compound having at least one ethylenic bond in the presence of a borane complex BH3 with an amine as a radical initiator, said process comprising the steps of: providing a borane complex BH3 with an amine; and bringing the complex into contact with a composition comprising at least one radically polymerizable compound having at least one ethylenic bond; wherein the polymerization is performed in the absence of an oxidizing agent and/or an additional radical initiator other than the borane complex BH3 with an amine. The invention also relates to a composition comprising at least one radically polymerizable compound having at least one ethylenic bond and a borane complex BH3 with an amine, wherein the composition is free of an oxidizing agent and/or an additional radical initiator other than the borane complex BH3 with an amine, as well as the use of said composition as an adhesive for bonding two substrates together.