摘要:
Catalytic derivatives of novel Group 4 metal complexes wherein the metal is in the +2, +3, or +4 formal oxidation state containing two ligand groups bound by .pi.-electrons, at least one of which is a cyclic or noncyclic, non-aromatic, anionic, dienyl ligand group and having a bridged ligand structure, and the use thereof as catalysts for polymerizing addition polymerizable monomers are disclosed.
摘要:
Novel Group 4 metal complexes wherein the metal is in the +2, +3, or +4 formal oxidation state containing two ligand groups bound by n-electrons, at least one of which is a cyclic or noncyclic, non-aromatic, anionic, dienyl ligand group and having a bridged ligand structure, catalytic derivatives of such complexes; and the use thereof as catalysts for polymerizing addition polymerizable monomers are disclosed.
摘要:
Novel Group 4 metal complexes wherein the metal is in the +2 or +4 formal oxidation state containing a cyclic or noncyclic, non-aromatic, anionic, dienyl ligand group bound to M and having a bridged ligand structure, catalytic derivatives of such complexes including novel zwitterionic complexes; and the use thereof as catalysts for polymerizing addition polymerizable monomers are disclosed.
摘要:
Novel Group 4, Group 3 or Lanthanide metal complexes wherein the metal is in the +3 formal oxidation state containing a cyclic or non-cyclic, nonaromatic, anionic, dienyl ligand group bound to M and having a bridged ligand structure, catalytic derivatives of such complexes; and the use thereof as catalysts for polymerizing addition polymerizable monomers are disclosed.
摘要:
A support for use in preparing supported catalysts for addition polymerizations comprising the reaction product of: (A) an inorganic oxide material comprising reactive surface hydroxyl groups, at least some of said hydroxyl groups optionally having been functionalized an converted to a reactive silano moiety corresponding to the formula: --OSiR.sub.2 H, wherein R, independently each occurrence, is hydrogen C.sub.1-20 hydrocarbyl, or C.sub.1-20 hydrocarbyloxy, said inorganic oxide or functionalized derivative thereof comprising less than 1.0 mmol of reactive surface hydroxyl functionality per gram, and (B) an activator compound comprising: b.sub.1) a cation which is capable of reacting with a transition metal compound to form a catalytically active transition metal complex, and b.sub.2) a compatible anion containing at least one substituent able to react with the inorgnaic oxide, with residual hydroxyl functionality of the inorganic oxide, or with the reactive silane moiety, hereby covalently bonding the compatible anion to the support, catalysts formed therefrom, process of manufacture and the method to use.
摘要:
Disclosed are compounds useful as catalyst activators for olefin polymerization, comprising structures of the following formulae: wherein: L+ is a protonated derivative of an element of Group 15 of the Periodic Table of the Elements, additionally bearing two hydrocarbyl substituents of from 1 to 50 carbons each, or a positively charged derivative of an element of Group 14 of the Periodic Table of the Elements, said Group 14 element being substituted with three hydrocarbyl substituents of from 1 to 50 carbons each; R1 is a divalent linking group of from 1 to 40 non-hydrogen atoms; R2 independently each occurrence is a ligand group of from 1 to 50 nonhydrogen atoms with the proviso that in a sufficient number of occurrences to balance charge in the compound, R2 is L+—R1—; M1 is boron, aluminum or gallium; Arf independently each occurrence is a monovalent, fluorinated organic group containing from 6 to 100 non-hydrogen atoms; Y is a Group 15 element; and Z is a Group 14 element.
摘要:
Metal complexes having constrained geometry and a process for preparation thereof, addition polymerization catalysts formed therefrom, processes for preparation of such addition polymerization catalysts, methods of use, and novel polymers formed thereby, including EIPE resins and pseudo-random copolymers, are disclosed and claimed.
摘要:
This invention relates to heteroatom substituted cyclopentadienyl-containing ligands, metal complexes containing these ligands, catalyst systems prepared from catalyst components comprising these metal complexes. The metal complexes contain a “a” heteroatom-Cp bond or a ring heteroatom-Cp bond in the 3-position of the Cp. In preferred metal complexes the ligand is a 3-heteroatom substituted indenyl group. The catalyst systems for olefin polymerization may be used at high temperatures, are highly active and produce high molecular weight polymer.
摘要:
Ansa bis(.mu.-substituted) Group 4 metal and aluminum compounds comprising a single Group 4 metal atom and two aluminum metal atoms corresponding to the formula: ##STR1## wherein: L' is a .pi.-bonded group,M is a Group 4 metal,J is nitrogen or phosphorus;Z is a divalent bridging group causing the complex to have an ansa structure,R' is an inert monovalent ligand;r is one or two;X independently each occurrence is a Lewis basic ligand group able to form a .mu.-bridging ligand group, and optionally the two X groups may be joined together, andA' independently each occurrence is an aluminum containing Lewis acid compound that forms an adduct with the metal complex by means of the .mu.-bridging groups, and optionally two A' groups may be joined together thereby forming a single difunctional Lewis acid containing compound, and a method of preparation comprising contacting a charge-neutral Group IV metal coordination complex having at least two Lewis basic groups with at least two molar equivalents of charge-neutral aluminum coordination complexes having Lewis acidic aluminum atoms such that at least two of the aluminum atoms of the aluminum coordination complexes bond to at least two of the Lewis basic groups of the Group IV coordination complex.
摘要:
A membrane for separation of gases, the membrane including a metal-organic phase and a polymeric phase, the metal-organic phase having porous crystalline metal compounds and ligands, the polymeric phase having a molecularly self assembling polymer.