| Patent Number |
Title Of Patent |
Date Issued |
| 7348388 |
Copolymers of olefins and vinyl- and allylsilanes |
March 25, 2008 |
| Ethylene and allyl- or vinylsilanes are efficiently copolymerized by certain late transition metal complexes containing selected bidentate or tridentate ligands. The resulting novel polymers may be crosslinked by moisture when vinylsilane contains groups bound to silicon which are hy |
| 7041764 |
Copolymerization of olefins |
May 9, 2006 |
| Ethylene and/or propylene, and .alpha.-olefins may be copolymerized by contacting then with certain iron or cobalt complexes of selected 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines). The polymers produced, some of which are novel, are useful as molding resi |
| 6933359 |
Copolymerization of ethylene and dienes |
August 23, 2005 |
| Ethylene, dienes and optionally .alpha.-olefins are copolymerized by selected iron complexes of 2,6-pyridinecarbox-aldehydebis(imines) and 2,6-diacylpyridinebis(imines). The resulting copolymers contain residual olefinic unsaturation from the diene monomers, and some of these copolym |
| 6803432 |
Copolymerization of olefins |
October 12, 2004 |
| Ethylene and/or propylene, and .alpha.-olefins may be copolymerized by contacting then with certain iron or cobalt complexes of selected 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines). The polymers produced, some of which are novel, are useful as molding resi |
| 6699955 |
Copolymerization of ethylene and dienes |
March 2, 2004 |
| Ethylene, dienes and optionally .alpha.-olefins are copolym-erized by selected iron complexes of 2,6-pyridinecarbox-aldehydebis(imines) and 2,6-diacylpyridinebis(imines). The resulting copolymers contain residual olefinic unsaturation from the diene monomers, and some of these copoly |
| 6670433 |
Polymers of substituted cyclopentenes |
December 30, 2003 |
| Substituted cyclopentenes, such as alkyl cyclopentenes, are polymerized by selected .alpha.-imine complexes of nickel and palladium. The polymers are useful as molding resins or elastomers. Also disclosed herein are novel catalysts for the polymerization of cyclopentenes to form novel hi |
| 6613915 |
Polymerization of olefins |
September 2, 2003 |
| Selected olefins such as ethylene and .alpha.-olefins are polymerized by nickel [II] complexes of certain monoanionic ligands. The polyolefins are useful in many applications such as molding resins, film, fibers and others. Also described are many novel nickel compounds and their pre |
| 6541585 |
Polymerization of olefins |
April 1, 2003 |
| Polymers are produced using transition metal complexes that have sites capable of binding a Lewis acid in close proximity to the metal center. |
| 6432862 |
Cobalt catalysts for the polymerization of olefins |
August 13, 2002 |
| Catalysts based on cobalt complexes of 2,6-pyridinecarboxaldehydebis(imine) and 2,6-diacylpyridine-bis(imine) tridentate ligands are provided, which are particularly suitable for the polymerization of olefins. |
| 6423848 |
Tridentate ligand |
July 23, 2002 |
| Certain 2,6-pyridinecarboxaldehydebis(imine) and 2,6-diacylpyridinebis(imine) compounds are provided, which are particularly suitable for use as tridentate ligands in iron and cobalt olefin polymerization catalysts. |
| 6417305 |
Oligomerization of ethylene |
July 9, 2002 |
| Ethylene is oligomerized with certain catalysts based on iron and cobalt complexes of 2,6-pyridinecarboxaldehydebis(imine) and 2,6-diacylpyridine-bis(imine) tridentate ligands. |
| 6310163 |
.alpha.-olefins and olefin polymers and processes therefor |
October 30, 2001 |
| Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-cat |
| 6258908 |
Polymers of substituted cyclopentenes |
July 10, 2001 |
| Substituted cyclopentenes, such as alkyl cyclopentenes, are polymerized by selected .alpha.-imine complexes of nickel and palladium. The polymers are useful as molding resins or elastomers. Also disclosed herein are novel catalysts for the polymerization of cyclopentenes to form novel hi |
| 6214761 |
Iron catalyst for the polymerization of olefins |
April 10, 2001 |
| Catalysts based on iron complexes of 2,6-pyridinecarboxaldehydebis(imine) and 2,6-diacylpyridine-bis(imine) tridentate ligands are provided, which are particularly suitable for the polymerization of olefins. |
| 6174975 |
Polymerization of olefins |
January 16, 2001 |
| Selected olefins such as ethylene and .alpha.-olefins are polymerized by nickel [II] complexes of certain monoanionic ligands. The polyolefins are useful in many applications such as molding resins, film, fibers and others. Also described are many novel nickel compounds and their pre |
| 6103920 |
Olefin polymerization process |
August 15, 2000 |
| Disclosed herein is a process for the polymerization of ethylene, norbornenes and styrenes, by contacting in solution a selected nickel compound and a selected compound which is or can coordinated to the nickel with the olefin(s). The polymers produced are useful for films and molding |
| 6063881 |
Oligomerization of propylene |
May 16, 2000 |
| Propylene may be oligomerized by contact with cobalt complexes corresponding to the following structure: ##STR1## wherein R.sup.1 -R.sup.7 are hydrogen, hydrocarbyl or inert functional groups, and X is an anion. The resulting olefins are useful as chemical intermediates. |
| 6034259 |
.alpha.-olefins and olefin polymers and processes therefor |
March 7, 2000 |
| Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-cat |
| 5955555 |
Polymerization of ethylene |
September 21, 1999 |
| Ethylene may be polymerized by contacting it with certain iron or cobalt complexes of selected 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridinebis(imines). The polymers produced are useful as molding resins. Novel 2,6-pyridinecarboxaldehydebis(imines) and 2,6-diacylpyridi |
| 5886224 |
.alpha.-diimines for polymerization catalysts |
March 23, 1999 |
| Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-cat |
| 5866663 |
Processes of polymerizing olefins |
February 2, 1999 |
| Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-cat |
| 5714556 |
Olefin polymerization process |
February 3, 1998 |
| Disclosed herein is a process for the polymerization of ethylene, norbornenes and styrenes, by contacting in solution a selected nickel compound and a selected compound which is or can coordinated to the nickel with the olefin(s). The polymers produced are useful for films and molding |
