Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1997-02-07
1999-06-22
Bell, Mark L.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502103, 502117, 502132, 526160, 526943, B01J 3100, B01J 3700, C08F 402, C08F 460
Patent
active
059142898
ABSTRACT:
The present invention relates to the production of high density polyethylene homopolymers or copolymers having a broad and monomodal molecular weight distribution wherein the polymerization process is conducted in the presence of supported metallocene-alumoxane catalysts wherein the metallocene is bridged, comprises at least a hydrogenated indenyl or fluorenyl and a metal M which may be Ti, Zr or Hf, wherein a plurality of conformers of the metallocene are formed and isolated on the support by reaction of the metallocene with the alumoxane and depositing the product formed on the support at a temperature in the range 85.degree. C. to 110.degree. C.
REFERENCES:
patent: 4871705 (1989-10-01), Hoel
patent: 5017714 (1991-05-01), Welborn, Jr.
patent: 5036034 (1991-07-01), Ewen
patent: 5234878 (1993-08-01), Tsutsui et al.
patent: 5240894 (1993-08-01), Burkhardt et al.
patent: 5276208 (1994-01-01), Winter et al.
patent: 5594081 (1997-01-01), Uchino et al.
"Polymerization of Propene with Zirconocene-Containing Supported Catalysts Activated by Common Trialkylaluminiums", Soga et al., Makromolekulare Chemie, vol. 194, No. 6, pp. 1745-1755 (Jun. 1, 1993).
Bell Mark L.
Fina Research S.A.
Pasterczyk J.
LandOfFree
Supported metallocene-alumoxane catalysts for the preparation of does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Supported metallocene-alumoxane catalysts for the preparation of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supported metallocene-alumoxane catalysts for the preparation of will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1708046