Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1996-05-16
1997-05-13
Delmendo, Romulo H.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526119, 5261244, 5261248, 5261256, 502110, 502113, 502115, 502116, C08F 4654, C08F 4655
Patent
active
056293909
ABSTRACT:
A method for producing a polyolefin in the presence of a catalyst comprising a transition metal compound and an organometallic compound, wherein a catalyst system is used which comprises: (A) a solid catalyst component prepared by reacting a uniform solution containing (I) at least one member selected from the group consisting of metal magnesium and a hydroxylated organic compound, and oxygen-containing organic compounds of magnesium, (II) an electron donative compound and (III) an oxygen-containing organic compound of titanium, with (IV) at least one aluminum halide compound to obtain a solid product, adding to this solid product (V) at least one compound selected from the group consisting of oxygen-containing organic compounds of one or more transition metals of Group IVa of the Periodic Table, and then treating the mixture with (VI) an aluminum halide compound, and (B) at least one catalyst component selected from the group consisting of organoaluminum compounds. A polymer having a desired molecular weight distribution and good configuration of particles can be obtained while maintaining high activity by the method of the present invention.
REFERENCES:
patent: 4518751 (1985-05-01), Mizogami et al.
patent: 4804726 (1989-02-01), Kondo et al.
patent: 5037910 (1991-08-01), Cook et al.
patent: 5118769 (1992-06-01), Kondo et al.
patent: 5145818 (1992-09-01), Tsutsui et al.
patent: 5225502 (1993-07-01), Sato et al.
Chikusa Toshikazu
Kondo Yozo
Mori Mitsuhiro
Naito Yutaka
Nishimura Sadaki
Delmendo Romulo H.
Tosoh Corporation
LandOfFree
Method for producing a polyolefin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing a polyolefin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing a polyolefin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1386275