| Patent Number |
Title Of Patent |
Date Issued |
| 6800725 |
Process for removing hydrogenation catalyst residue from hydrogenated polymers |
October 5, 2004 |
| This invention relates to a process for removing hydrogenation catalyst residue from hydrogenated polymers comprising:(I) treating a polymer cement comprising an unsaturated polymer in an inert water-immiscible liquid with a hydrogen source in the presence of a hydrogenation catalyst;(II |
| 5886107 |
Process for hydrogenation of conjugated diene polymers and catalyst compositions suitable for us |
March 23, 1999 |
| The invention provides a catalyst composition suitable for hydrogenation of polymers containing ethylenical unsaturation which comprises at least:(a) a titanium compound of the formula ##STR1## wherein A.sub.1 represents an optionally substituted heterocyclic five membered ring compr |
| 5225385 |
Solid alkene polymerization catalyst components and process for their preparation |
July 6, 1993 |
| A solid catalyst component for alkene polymerization comprising a magnesium halide, an electron donor and a phenoxy-titanium halide, the latter being a dihalophenoxy-titanium halide or a dialkoxyphenoxy-titanium halide in which the alkoxy groups each have from 1 to 8 carbon atoms. |
| 5145922 |
Olefin polymerization catalysts |
September 8, 1992 |
| A process for preparing an olefin polymerization catalyst which comprises halogenating a magnesium-di-(3- or 4-halo- or 3- or 4-C.sub.1 to C.sub.8 alkoxy-phenoxide) with a halide of tetravalent titanium in the presence of a halohydrocarbon, recovering the solid reaction product from the |
| 5081087 |
Olefin polymerization catalysts |
January 14, 1992 |
| A process for preparing an olefin polymerization catalyst which comprises halogenating a magnesium-di-(3-halo- or 3- C.sub.1 to C.sub.8 alkoxy-phenoxide) with a halide of tetravalent titanium in the presence of a halohydrocarbon, recovering the solid reaction product from the reaction |
