| Patent Number |
Title Of Patent |
Date Issued |
| 5081090 |
Dry olefin polymerization catalyst |
January 14, 1992 |
| A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprising the product formed by A) forming a solution of a magnesium-containing species from a magnesium alkyl (or hydrocarbyl) carb |
| 5013702 |
Olefin polymerization catalyst |
May 7, 1991 |
| A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprises the product formed by (A) forming a solution of a magnesium-containing species from a magnesium carbonate or a magnesium ca |
| 4988656 |
Olefin polymerization catalyst |
January 29, 1991 |
| A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprises the product formed by (A) forming a solution of a magnesium-containing species from a magnesium carbonte or a magnesium car |
| 4946816 |
Morphology-controlled olefin polymerization catalyst |
August 7, 1990 |
| In a solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprising the product formed by (A) forming a solution of a magnesium-containing species from a magnesium alkyl (or hydrocarbyl) |
| 4866022 |
Olefin polymerization catalyst |
September 12, 1989 |
| A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprises the product formed by (A) forming a solution of a magnesium-containing species from a magnesium carbonate or a magnesium ca |
| 4612299 |
Magnesium carboxylate supports |
September 16, 1986 |
| Composition comprising a transition metal component and magnesium carboxylate prepared by reacting a solution of hydrocarbyl magnesium compound with carbon dioxide to precipitate a magnesium carboxylate and reacting magnesium carboxylate with transition metal component. |
| 4365045 |
Crystalline olefin block polymers |
December 21, 1982 |
| 1. A process for producing a block polymer which comprises contacting, under polymerizing conditions, propylene with a catalyst comprising a dispersion of solid particles of a metal subhalide wherein said metal is selected from the group consisting of the metals of Groups IVa, Va and VIa |
| 4184987 |
Stabilizing additives for polyolefins |
January 22, 1980 |
| Partial esters of polyhydroxy compounds and combinations thereof with organophosphorus compounds have been found to be effective stabilizers for polyolefins made in processes wherein such polymers are not subjected to extensive removal of process produced impurities during or subsequent |
| 3962203 |
Dechlorination of high yield polyolefins using neutral phosphoryl esters |
June 8, 1976 |
| Lower alkyl, neutral phosphoryl esters are disclosed herein as effective materials to reduce deleterious chloro compound concentrations in polyolefins and compositions based thereon, which polyolefins and compositions are produced in bulk or vapor-phase processes using high yield cat |
