Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1989-07-24
1991-10-08
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526129, 5263485, 526901, C08F 4651, C08F21002
Patent
active
050555332
ABSTRACT:
A catalyst composition for polymerizing alpha-olefins is prepared by reacting a transition metal compound, e.g., titanium, with trimethylaluminum catalyst activator. In a preferred embodiment, the catalyst is supported on a porous refractory support and is prepared by additionally reacting a magnesium compound or an organomagnesium composition with the support.
Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention. The polymer products have higher bulk density and produce films of greater strength than polymers prepared with similar catalysts utilizing different alkyl-aluminum activators, e.g., triethylaluminum and tri-isobytylaluminum.
REFERENCES:
patent: Re120503 (1984-03-01), Karol et al.
patent: 2827446 (1958-03-01), Breslow
patent: 2905645 (1959-09-01), Anderson et al.
patent: 2912419 (1959-11-01), Peters et al.
patent: 2924593 (1960-02-01), Breslow
patent: 2924594 (1960-02-01), Breslow
patent: 2936291 (1960-05-01), Peters et al.
patent: 3052660 (1962-09-01), Osgan
patent: 3574138 (1971-04-01), Ziegler et al.
patent: 3787384 (1974-01-01), Stevens et al.
patent: 3917575 (1975-11-01), Matsuura et al.
patent: 4110523 (1978-08-01), Schweier et al.
patent: 4148754 (1979-04-01), Strobel et al.
patent: 4173547 (1979-11-01), Graff
patent: 4212961 (1980-07-01), Kobayashi et al.
patent: 4243619 (1981-01-01), Frase et al.
patent: 4258159 (1981-03-01), Bienfait
patent: 4296223 (1981-10-01), Berger
patent: 4302565 (1981-11-01), Goeke et al.
patent: 4302566 (1981-11-01), Karol et al.
patent: 4359561 (1982-11-01), Fraser et al.
patent: 4387200 (1983-06-01), Gessell et al.
patent: 4407727 (1983-10-01), Hanis et al.
patent: 4481301 (1984-11-01), Nowlin et al.
patent: 4542199 (1985-09-01), Kaminsky et al.
patent: 4634752 (1987-01-01), Hagerty et al.
patent: 4670413 (1987-06-01), Furtek
patent: 4675369 (1987-06-01), Cook et al.
patent: 4760121 (1988-07-01), Lo et al.
Allen Luanne M.
Hagerty Robert O.
Mohring Richard O.
McKillop Alexander J.
Mobil Oil Corporation
Schneller Marina V.
Smith Edward J.
Speciale Charles J.
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