Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1994-02-10
1995-02-28
Pal, Asok
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502117, 502123, 526105, 526106, C08F 424, B01J 3100
Patent
active
053937198
ABSTRACT:
Olefins can be polymerized in the presence of a catalyst system composition comprising chromium oxides supported on a inorganic oxide support, a pyrrole-containing compound and a non-hydrolyzed metal alkyl. The use of this type of polymerization catalyst in a polymerization process can produce an olefin comonomer in-situ, resulting in polymers having decreased density and increased branching.
REFERENCES:
patent: 3462403 (1969-08-01), Pendleton
patent: 3534006 (1970-10-01), Kamaishi et al.
patent: 3985718 (1976-10-01), Chabert et al.
patent: 4150208 (1979-04-01), Hwang
patent: 4634687 (1987-01-01), Fujita et al.
patent: 4668838 (1987-05-01), Briggs
patent: 4806513 (1989-02-01), McDaniel et al.
patent: 4988657 (1991-01-01), Martin et al.
patent: 5198563 (1993-03-01), Reagan et al.
patent: 5288823 (1994-02-01), Reagan et al.
patent: 5331070 (1994-07-01), Pettijohn et al.
J. R. Briggs, The Selective Trimerization of Ethylene to Hex-1-ene, (1989).
D. Tille, Pyrrolylchromium Compounds, (1966).
D. Tille, Organometal Compounds of Nitrogen Systems, (1971).
W. K. Reagen, Chromium (II) & (III) Pyrrolyl Ethylene Oligomerization Catalysts, Synthesis and Crystal Structure of Square Planar Cr(NC.sub.4 H.sub.4).sub.4.sup.-2, and Pentanuclear (Cr.sub.5 (NC.sub.4 H.sub.4).sub.10 (OC.sub.4 H.sub.8).sub.4).
Kresser, Theodore O. J.; Polyolefin Plastics (1969) pp. 5-6.
Billmeyer, Jr., Fred W.; Textbook of Polymer Science (1984) pp. 91, 92 and 96.
Boor, Jr., John; Ziegler-Natta Catalyst and Polymerizations (1979) pp. 279-284.
Schut, Jan H.; Plastics Technology "Why Processors Ned to Know How They Make PEs" (Sep. 1993) pp. 68-72.
Martin Shirley J.
Pettijohn Ted M.
Reagen William K.
Jolly Lynda S.
Pal Asok
Phillips Petroleum Company
LandOfFree
Catalysts for olefin polymerization does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Catalysts for olefin polymerization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalysts for olefin polymerization will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-848364