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US 5,883,204 AGranted
Solution polymerization process with dispersed catalyst activator
AssigneeThe Dow Chemical Company
InventorsLee Spencer, James C. Stevens, Daniel D. VanderLende
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Abstract
A dispersible ionic catalyst activator, comprising an insoluble substrate material having a correlated settling rate less than 0.03 cm/sec, and from 0.001 to 10 mmol/g of an ionic catalyst activator deposited thereon which is particularly adapted for use in a continuous, solution polymerization process.
Claims6
A process for adding an ionic catalyst activator to a solution olefin polymerization reaction the steps of the process comprising forming a dispersion consisting essentially of an aliphatic or alicyclic hydrocarbon liquid;
- a solid, insoluble substrate material having particle size from 5.0 .eta.m to 15 .mu.m, said insoluble substrate material having the ionic catalyst activator deposited thereon;
- and pumping or metering the dispersion to the polymerization reaction operating under solution polymerization conditions.
Dependencies are inferred from the claim text.