06777509 is referenced by 29 patents and cites 1 patents.

A solution polymerization process using a phosphinimine catalyst and a boron activator is conducted at a temperature of about 170° C. or greater in the presence of trialkyl aluminum to produce polyethylene having a comparatively broad molecular weight distribution. The polyethylene product produced by the process of this invention is desirable because it can provide enhanced “processability” in comparison to polyethylene having a narrow molecular weight distribution. The process of this invention is advantageous in comparison to prior art processes for the preparation of “broad” polyethylene which use two polymerization reactors and/or more than one polymerization catalyst. The polymers produced by the process of this invention are potentially suitable for the preparation of plastic film. For example, a polyethylene according to this invention and having a density of about 0.93 grams per cubic centimeter and a melt index I

2

(according to ASTM D 1238) of about 2 may be advantageously used to prepare cast film. In addition the present polyethylenes may be used for the manufacture of a wide variety of other goods including blow molded parts (such as tanks, drums and containers for gasoline or other liquids); extruded goods (such as profiles or hoses); and injection molded goods such as food containers.

Title
Solution polymerization process
Application Number
10/124465
Publication Number
6777509 (B2)
Application Date
April 17, 2002
Publication Date
August 17, 2004
Inventor
Christopher John Brooke Dobbin
Calgary
US
John William Swabey
Calgary
US
Stephen John Brown
Calgary
US
Agent
Kenneth H Johnson
US
Assignee
Nova Chemicals
US
IPC
C08F 4/52
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