| 摘要 |
Polyethylene wax having a number average molecular weight of from 1,000 to 10,000 and a molecular weight distribution of from 2 to 4 may be produced using a phosphinimine catalyst under "forced" solution polymerization conditions. The "forced" conditions include high polymerization temperatures; comparatively low catalyst efficiencies and very high ethylene conversions. These "forced" conditions may be achieved by operating the reactor at a temperature of between 190° C and 250° C, using a high catalyst concentration and high ethylene conversion. Using these conditions, polyethylene wax may be produced in the absence of hydrogen.
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