Process for olefin polymerization

Details Process for olefin polymerization Process for olefin polymerization

1992-11-13

1994-07-19

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526106, 526114, 526141, 526352, 502113, C08F 424

Patent

active

053310705

ABSTRACT:
Olefins can be polymerized in the presence of a catalyst system composition comprising chromium supported on an inorganic oxide support, a pyrrole-containing compounds, and a metal alkyl. The use of this type of polymerization process can produce an olefin comonomer in-situ, resulting in polymers having decreased density and increased branching.

REFERENCES:
patent: 3426403 (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.
Kresser, Theodore O. J.; Polyolefin Plastics (1969) pp. 5-6.
Billmeyer, Jr., Fred W.; Textbook of Polymer Science (1984) pp. 91, 92 and 96.
Boork, Jr., John; Ziegler-Natta Catalysts and Polymerizations (1979) pp. 279-284.
Schut, Jan H.; Plastics Technology "Why Processors Need to Know How They Make PEs" (Sep. 1993) pp. 68-72.
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).

Affiliated with

Also associated with

Rating

Process 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 Process for olefin polymerization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for olefin polymerization will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-520866