Temperature control of MW in olefin polymerization using support

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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526127, 526156, 526160, 526165, 526901, 526905, 5263485, C08F 4642, C08F 234

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active

056080190

ABSTRACT:
In gas phase polymerizations and copolymerizations of ethylene, temperature controls the molecular weight, expressed as MI (wherein MI is measured according to ASTM D-1238 Condition E), of the resin product. Increase in polymerization temperature produces decrease in MI; whereas, decrease in polymerization temperature produces increase in MI.

REFERENCES:
patent: 3950269 (1976-05-01), Setterquist
patent: 4057475 (1977-11-01), Canich et al.
patent: 4188470 (1980-02-01), Collina et al.
patent: 4299936 (1981-11-01), Candlin et al.
patent: 4324691 (1982-04-01), Hartshorn
patent: 4530914 (1985-07-01), Ewen et al.
patent: 4536484 (1985-08-01), Lacombe et al.
patent: 4658078 (1987-04-01), Slaugh et al.
patent: 4665047 (1987-05-01), Slaugh et al.
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: 4814540 (1989-03-01), Watanabe et al.
patent: 4871704 (1989-10-01), Kohara et al.
patent: 4912075 (1990-03-01), Chang
patent: 4914253 (1990-04-01), Chang
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: 5043515 (1991-08-01), Slaugh et al.
patent: 5055438 (1991-10-01), Canich
patent: 5066631 (1991-11-01), Sangokoya et al.
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: 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
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), Ueli 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: 5332706 (1994-07-01), Nowlin et al.
patent: 5405922 (1995-04-01), DeChellis et al.
patent: 5422325 (1995-06-01), Jejelowo et al.
patent: 5441920 (1995-08-01), Welborn
patent: 5442019 (1995-08-01), Agapiou et al.
patent: 5462999 (1995-10-01), Griffin et al.
patent: 5466649 (1995-11-01), Jejelowo
patent: 5468702 (1995-11-01), Jejelowo
patent: 5470811 (1995-11-01), Jejelowo
Kaminsky, W., et al., "Elastomers by Atactic Linkage of .alpha.-olefins Using Soluble Ziegler Catalysts", Makromol. Chem., Makromol. Symp, 4, 1986, pp. 103-118.
Chien, James C. W., et al., "Metallocene-Methylaluminoxane Catalysts for Olefin Polymerization. I. Trimethylaluminum as Coactivator", Journal of Polymer Science, vol. 26, 1988, pp. 3089-3102.
Kaminsky, W., "Synthesis of Polyolefins With Homogeneous Ziegler-Natta-Catalysts of High Activity", History of Polyolefins, 1986, pp. 257-270.
Sinn, H. et al., "Scope of Ziegler Catalysis", Advances in Organometallic Chemistry, vol. 18, 1980, pp. 99-149.
Furtek, A. B., "Ultra Strength Polyethylene Resins Produced In A Fluid-Bed Process Utilizing Metallocene-Based Catalysts", Caralyst, Inc., 125-137, May 1993.
Kaminsky, W. Dr., "Metallocene Catalysts", Global Business Chamges, Monomers, Polymers, Markets and Applications, III-3.1--III-3.21, Dec. 1992 .

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