Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1994-11-03
1997-03-25
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...
502104, 502107, 502113, 502117, B01J 3100, B01J 3116, B01J 3122
Patent
active
056144563
ABSTRACT:
The interaction of silica, previously calcined at 600.degree. C., with dibutylmagnesium (DBM), 1-butanol and titanium tetrachloride and a solution of methylalumoxane (MAO) and (BuCp).sub.2 ZrCl.sub.2 provides a catalyst that, in the absence of a trialkylaluminum (AlR.sub.3) cocatalyst, produces polyethylene with a bimodal MWD.
REFERENCES:
patent: 3135809 (1964-06-01), Bosmajian
patent: 3950269 (1976-04-01), Setterquist
patent: 4188470 (1980-02-01), Collina et al.
patent: 4299936 (1981-11-01), Candlin et al.
patent: 4324691 (1982-04-01), Hartshorn et al.
patent: 4338424 (1982-07-01), Morita et al.
patent: 4404344 (1983-09-01), Sinn et al.
patent: 4414369 (1983-11-01), Kuroda et al.
patent: 4420592 (1983-12-01), Kato et al.
patent: 4525550 (1985-06-01), Warzelhan et al.
patent: 4530914 (1985-07-01), Ewen et al.
patent: 4536484 (1985-08-01), Lacombe et al.
patent: 4542199 (1985-09-01), Kaminsky et al.
patent: 4568659 (1986-02-01), Warzelhan et al.
patent: 4578373 (1986-03-01), Graves
patent: 4658078 (1987-04-01), Slaugh et al.
patent: 4665047 (1987-05-01), Slaugh et al.
patent: 4701432 (1987-10-01), Welborn, Jr.
patent: 4703094 (1987-10-01), Raufast
patent: 4710552 (1987-12-01), Bachl et al.
patent: 4752597 (1988-06-01), Turner
patent: 4769510 (1988-09-01), Kaminsky et al.
patent: 4794096 (1988-12-01), Ewen
patent: 4808561 (1989-02-01), Welborn, Jr.
patent: 4814540 (1989-03-01), Watanabe et al.
patent: 4820786 (1989-04-01), Bacskai
patent: 4871704 (1989-10-01), Kohara et al.
patent: 4874734 (1989-10-01), Kioka et al.
patent: 4897455 (1990-01-01), Welborn, Jr.
patent: 4912075 (1990-03-01), Chang
patent: 4914253 (1990-04-01), Chang
patent: 4918038 (1990-04-01), Samuels et al.
patent: 4923833 (1990-05-01), Kioka et al.
patent: 4925821 (1990-05-01), Chang
patent: 4931517 (1990-06-01), Fujita
patent: 4933403 (1990-06-01), Kaminsky et al.
patent: 4935397 (1990-06-01), Chang
patent: 4937217 (1990-06-01), Chang
patent: 4937301 (1990-06-01), Chang
patent: 4962248 (1990-10-01), Winter et al.
patent: 4962262 (1990-10-01), Winter et al.
patent: 5001205 (1991-03-01), Hoel
patent: 5006500 (1991-04-01), Chang
patent: 5008228 (1991-04-01), Chang
patent: 5023388 (1991-06-01), Luker
patent: 5026797 (1991-06-01), Takahashi
patent: 5032562 (1991-07-01), Lo et al.
patent: 5043515 (1991-08-01), Slaugh et al.
patent: 5055438 (1991-10-01), Canich
patent: 5057475 (1991-10-01), Canich et al.
patent: 5066631 (1991-11-01), Sangokoya et al.
patent: 5077255 (1991-12-01), Welborn, Jr.
patent: 5086024 (1992-02-01), Crapo et al.
patent: 5086135 (1992-02-01), Kissin
patent: 5087788 (1992-02-01), Wu
patent: 5091352 (1992-02-01), Kioka et al.
patent: 5124418 (1992-06-01), Welborn, Jr.
patent: 5126303 (1992-06-01), Resconi et al.
patent: 5132262 (1992-07-01), Rieger et al.
patent: 5132381 (1992-07-01), Winter et al.
patent: 5145819 (1992-09-01), Winter et al.
patent: 5147949 (1992-09-01), Chang
patent: 5157008 (1992-10-01), Sangokoya et al.
patent: 5171799 (1992-12-01), Kioka et al.
patent: 5171871 (1992-12-01), Miyashita
patent: 5171919 (1992-12-01), Watanabe et al.
patent: 5196496 (1993-03-01), Galimberti et al.
patent: 5198399 (1993-03-01), Hoff et al.
patent: 5206197 (1993-04-01), Campbell, Jr.
patent: 5206199 (1993-04-01), Kioka et al.
patent: 5208304 (1993-05-01), Waymouth
patent: 5216095 (1993-06-01), Dolle et al.
patent: 5223465 (1993-06-01), Ueki et al.
patent: 5225500 (1993-07-01), Elder et al.
patent: 5234878 (1993-08-01), Tsutsui et al.
patent: 5238891 (1993-08-01), Miro
patent: 5238892 (1993-08-01), Chang
patent: 5240894 (1993-08-01), Burkhardt et al.
patent: 5241025 (1993-08-01), Hlatky et al.
patent: 5242876 (1993-09-01), Shamshoum et al.
patent: 5305816 (1994-05-01), Tsutsui et al.
patent: 5324800 (1994-06-01), Welborn, Jr. et al.
Kaminsky, Walter, "Influence of hydrogen on the polymerization of ethylene with the homogeneous Ziegler system bis(cyclopentadienyl)zirconiumdichloride/aluminoxane", Makromol. Chem., pp. 225-228, (1984).
Kaminsky, Walter, "Living Polymers on Polymerization with Extremely Productive Ziegler Catalysts", Agnew. Chem. Int. Ed. Engl. 19, pp. 390-392, (1980).
Kaminsky, Walter, "Isotactic Polymerization of propene with (N-1,1'-ethylenedi-4,5,6,7-tetrahydroindenyl)zirconium dichloride combined with methylaluminoxane", Makromol. Chem., pp. 305-310, (1987).
Kaminsky, Walter, "Bis(cyclopentadienyl)zirkon-Verbindungen und Aluminoxan als Ziegler-Katalysatoren fur die Polymerisation und Copolymerisation von Olefinen," Makromol. Chem., pp. 417-421, (1983).
Kaminsky, Walter, "Metallocene Catalysts", University of Hamburg, (1992).
Mink Robert I.
Nowlin Thomas E.
Schregenberger Sandra D.
Shirodkar Pradeep P.
Tsien Grace O.
Keen M. D.
Mobil Oil Corporation
Pal Asok
Schneller M. V.
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