Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1997-12-11
2000-09-05
Wu, David W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526901, 422135, 422136, 422138, C08F 234
Patent
active
061144789
ABSTRACT:
A process for the homo- or copolymerization of C.sub.2 -C.sub.8 -alk-1-enes by means of a Ziegler-Natta or a metallocene catalyst system in a stirred bed of finely divided polymer from the gas phase, the transition metal-containing catalyst solid of the Ziegler-Natta or metallocene catalyst system being fed to the reactor by C.sub.2 -C.sub.8 -alk-1-ene metered into the reactor, wherein the transition metal-containing catalyst solid, together with at least some of the C.sub.2 -C.sub.8 -alk-1-ene, is fed to the reactor through one or more pipes which project perpendicularly or virtually perpendicularly from above into the gas space and end above the pulverulent stirred reactor bed.
REFERENCES:
patent: 4012573 (1977-03-01), Trieschmann et al.
patent: 4330645 (1982-05-01), Juza et al.
patent: 4794096 (1988-12-01), Ewen
patent: 4857613 (1989-08-01), Zolk et al.
patent: 5288824 (1994-02-01), Kerth et al.
patent: 5371260 (1994-12-01), Sangokoya
patent: 5391793 (1995-02-01), Marks et al.
Merriam-Webster's Collegiate Dictionary, Tenth Edition, p. 1320, 1997.
Jr. of Organ. chem. 369, (1989) 359-370.
Kersting Meinolf
Langhauser Franz
Lutz Gerald
Werner Rainer Alexander
BASF - Aktiengesellschaft
Rabago Roberto
Wu David W.
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