Method for reducing sheeting during polymerization of...

C - Chemistry – Metallurgy – 08 – F

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C08F 2/34 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1312172

- 42 - METHOD FOR REDUCING SHEETING DURING POLYMERIZATION OF ALPHA-OLEFINS ABSTRACT A method for reducing sheeting during polymerization of alpha-olefins in a low pressrue fluidized bed reactor utilizing titanium or vanadium based compounds as catalysts together with alkyl aluminum cocatalysts wherein water is introduced water into said reactor in an amount sufficient to maintain the electrostatic levels at the site of possible sheet formation at levels which avoid sheeting without substantially altering the effectiveness of said catalysts. D-15407

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