Preparing polyolefins with a narrow particle size...

Details Preparing polyolefins with a narrow particle size... Preparing polyolefins with a narrow particle size...

C - Chemistry, Metallurgy

08

F

252/109, 402/645

C08F 4/64 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1131204

ABSTRACT OF THE DISCLOSURE Ziegler type catalyst components suitable for activation with an organo aluminum compound are prepared by mixing the active catalytic particles with a fibrillatable polyolefin or substituted polyolefin and a non-fibrillatable polyolefin followed by ballmilling the mixture for a period of time sufficient to cause a fibrous mat to form, entrapping the catalyst particles in the mat which is, in turn, carried by the non-fibrillatable polyolefin. Polyolefins prepared by contacting the alpha olefin with such a catalyst component activated by an organo- aluminum compound have a particle size and particle size distribution such that 98% of the product is retained on a 100 mesh screen.

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