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US 4,397,764 AGranted
Polymer-supported ethylene polymerization catalyst
AssigneeConoco Inc.
InventorMark L. Shannon
Life of this patent
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Abstract
A polymer-supported ethylene polymerization catalyst prepared by a method comprising (a) a polymer supported titanium-based catalyst consisting of (1) a polymer resin containing an amino borane reducing agent; (2) a titanium tetrahalide; (3) and a suitable organometallic and/or organic metallic co-catalyst. The polymers produced are resins of high density and melting point.
Claims13
A catalyst system comprising
- (a) a polymer supported titanium containing catalyst comprising
- (1) a polymeric resin containing bound therein an amino borane reducing agent, and
- (2) titanium tetrahalide;
- together with
- (b) an organometallic co-catalyst, an organometallic hydride co-catalyst, an organometallic halide co-catalyst or mixtures of these.
2 more elements
A method for preparing a catalyst for olefin polymerizations comprising reacting under an inert atmosphere
- (1) a polymeric resin containing bound therein an aminoborane reducing agent, said resin suspended in an inert diluent, and
- (2) a titanium tetrahalide compound, then
- (3) allowing reaction to proceed between 1 and 2 to produce a solid, then recovering said solid, and
- (4) combining said solid with an organometallic, organometallic halide or an organometallic hydride co-catalyst or mixtures of these prior to carrying out a polymerization.
1 more element
Dependencies are inferred from the claim text.