Process for polyolefin production using short residence time rea

Details Process for polyolefin production using short residence time rea Process for polyolefin production using short residence time rea

1993-09-16

1995-12-12

Wu, David W.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 86, 526 87, 526 88, 526351, 526352, C08F 206

Patent

active

054750679

ABSTRACT:
This invention relates to a short residence time polymerization reactor operating in periodic mode with multiple catalyst feeds and staged monomer feeds operating to minimize off specification product and optimize and control molecular weight and molecular weight distribution of the polymer produced. This invention contemplates the polymerization of olefins particularly alpha-olefins, particularly ethylene and propylene into homo, co and terpolymers.

REFERENCES:
patent: 2852501 (1958-09-01), Richard, Jr. et al.
patent: 3625658 (1971-12-01), Closon et al.
patent: 3681306 (1972-08-01), Wehner
patent: 4026967 (1977-05-01), Flexman et al.
patent: 4065520 (1977-12-01), Bailey et al.
patent: 4078133 (1978-03-01), Ozima
patent: 4250290 (1981-02-01), Peterson
patent: 4311803 (1982-01-01), Smith et al.
patent: 4540753 (1985-08-01), Cozewith et al.
patent: 4716207 (1987-12-01), Cozewith et al.
patent: 4736001 (1988-04-01), Carbonaro et al.
patent: 4786697 (1988-11-01), Cozewith et al.
patent: 4789714 (1988-12-01), Cozewith et al.
patent: 4791180 (1988-12-01), Turner
patent: 5096867 (1992-03-01), Canich
patent: 5153157 (1992-10-01), Hlatky et al.
Abstract of Solution Polymerisation Apparatus for Olefin. SU-147175 (1961).
Abstract CA80(26):147373j Renken, Chem. Ing. Tech. 46(3),113 (Ger) 1974.
Abstract CA79(13):78178Q Renken, et al. Chem. Ing. Tech. 45(12) 854-9 (Ger.) 1973.
Abstract CA78(18):113337u Appln DE 71-2130606 21 Jun. 1971.
Abstract--CA90(14):104405k Crone, et al. Chem. Ing. Tech. 51(1) 42-3 (Ger) 1979.
Abstract--CA102(16):134089u Renken, et al. Dechema Monogr. 94(1932-47 Reaktion S.C.) 1983 313-33.
Abstract CA86(19):139311w Renken, et al. Chem. React. Eng. Proc. Int. Symp. 4th 107-16, 1976.
Soga, et al. "Evaluation of propagation rate Constants . . . " Makrolmol. Chem., Rapid Comm. 10,503-507 (1989).
Lee + Bailey, "Influence of Mixing on the Performance . . . " ALChe Journal vol. 20, No. 1.
Abstract WPI Acc No. 73-03930u/04 for De 2130606.
Meira, et al. J. Macromol. Sci.--Rev. Macromol. Chem. C(20) 2,207-241 (1981).
Soga, et al. "Possibility of Mass Transfer Resistance . . . " Macromolecules 1991, 24, 1699-1700.
Keii, et al. "A Kinetic Argument for a Quasi-Liusng . . . " Makrocmol. Chem., Rapid Comm. 8, 583-587 (1987).
Terano, et al. "Stopped flow Polymerization of Propene . . . " J. Mol. Catal., 56 (1989) 203-210.
Frontini, et al. "Optimal Peroidic Control of a . . . " J. App. Pol. Sci. vol. 33. 2165-2177 (1987).
Schiffino, et al. "A Mechanistic Study of the Methanol . . . " J. Phys. Chem. 1993 97, 6425-6435.
Junghanns, et al. "Polymerisation von Athylen und Propylen . . . " Macromolecular Chem. vol. 58, Dec. 12, 1962, pp. 18-42.
Renken, A. "Use of Peroidic Operation to improve the . . . " Chem. Eng. Sci. 1972, pp. 1925-1932 vol. 27.
Crone + Renken, "Influence of Cyclic Operation on Free . . . " German Chem. Eng. 2 (1979) 337-342.
Reichert, et al., "Polymerization of Ethylene with a Highly Active Ziegler Catalyst in a Plug Flow Reactor", Macromol Symp. 28th 1982 p. 255.
VerStrate, et al., "Near Monodisperse EP Copolymers by direct . . . " Macromolecules 1988, 21, 3360-3371.
Whener, J. F. "Laminar Flow Polymerization of EPOM Polymer" ACS Symposium Series 65 (1978) pp. 140-152.

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