| Patent application number | Description | Published |
|---|
| 20080255329 | High Activity, Low Molecular Weight Olefin Polymerization Process - Group 4 metal complexes comprising a polyvalent, heteroaryl donor ligand and their use as components of olefin polymerization catalysts, especially suited for preparing propylene/ethylene copolymer products having high isotacticity and low molecular weight, are disclosed. | 10-16-2008 |
| 20090069567 | HAFNIUM COMPLEXES OF HETEROCYCLIC ORGANIC LIGANDS - Hafnium complexes of heterocyclic organic ligands having improved solubility in aliphatic hydrocarbon solvents and their use as components of olefin polymerization catalysts as well as novel syntheses of component parts thereof are disclosed. | 03-12-2009 |
| 20090111956 | HAFNIUM COMPLEXES OF HETEROCYCLIC ORGANIC LIGANDS - Hafnium complexes of heterocyclic organic ligands containing internal orthometallation and their use as components of olefin polymerization catalysts, especially for gas-phase olefin polymerizations, are disclosed. | 04-30-2009 |
| 20090186996 | HAFNIUM COMPLEXES OF CARBAZOLYL SUBSTITUTED IMIDAZOLE LIGANDS - Hafnium complexes of carbazolyl substituted imidazol ligands and their use as components of olefin polymerization catalyst compositions are disclosed. | 07-23-2009 |
| 20090264605 | TECHNIQUE FOR SELECTING POLYMERIZATION MODIFIERS CORSS REFERENCE STATEMENT - A combinatorial method for identifying a catalyst composition for use in the homogeneous addition polymerization of an olefin monomers, said catalyst composition comprising a transition metal compound, a cocatalyst and a polymerization modifier, as well as catalyst compositions and improved olefin polymerization processes resulting therefrom. | 10-22-2009 |
| 20090306318 | ORTHO-METALLATED HAFNIUM COMPLEXES OF IMIDAZOLE LIGANDS - Hafnium complexes of heterocyclic organic imidazol-2-yl ligands containing internal orthometallation and their use as components of olefin polymerization catalyst compositions, especially supported catalyst compositions, are disclosed. | 12-10-2009 |
| 20100010161 | PRODUCTION OF METATHESIS PRODUCTS BY HIGH MELTING POLYMER SEGMENT INTERCHANGE - Two or more chemically distinguishable ethylenically unsaturated polymers, at least one having from 0.001 to 50 mole percent unsaturation and at least one other having an expected Tg or measured Tm value greater than 100° C. are cross-metathesized to form thermoplastic elastomers having improved performance properties. | 01-14-2010 |
| 20100069573 | PRODUCTION OF META-BLOCK COPOLYMERS BY POLYMER SEGMENT INTERCHANGE - Meta-block copolymers and a process for preparing a product mixture comprising meta-block copolymers by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more ethylenically unsaturated polymers, said unsaturation defining one or more polymer segments in each ethylenically unsaturated polymer, at least one polymer segment in at least one ethylenically unsaturated polymer being chemically distinguishable from at least one polymer segment in at least one other ethylenically unsaturated polymer, characterized in that each meta-block copolymer in the product mixture comprises a random distribution of said chemically distinguishable polymer blocks. | 03-18-2010 |
| 20100222513 | PRODUCTION OF METATHESIS PRODUCTS BY AMORPHOUS POLYMER SEGMENT INERCHANGE - A cross-metathesized product mixture is prepared by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more chemically distinguishable ethylenically unsaturated polymers, at least one of said ethylenically unsaturated polymers (first polymer) having from 0.001 to 50 mole percent unsaturation and at least one other of said ethylenically unsaturated polymers (second polymer) being an amorphous polymer having a Tg less than 0° C. and having from 0.001 to 5 mole percent unsaturation. | 09-02-2010 |
