C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/614, 402/624
C08G 2/02 (2006.01) C08F 10/02 (2006.01) C08G 10/02 (2006.01)
Patent
CA 1116796
ABSTRACT OF THE DISCLOSURE An improved continuous process for the manufacture of polymers of ethylene in autoclave reactors with practically complete back-mixing under pressure of from about 800 to about 2500 bars in the presence of free-radical-generating initiators is provided wherein a) two autoclaves are connected in series in such a way that all the reaction product from the first reactor is fed to the second reactor, b) each autoclave has a length/diameter (L/D) ratio of from about 1:1 to about 3:1, c) the monomer(s) feed stream is divided between the two reactors such that when the temperature/concentration and/or pressure environment in the first reactor is different from that in the second reactor, the monomer(s) reed stream to the first reactor is equal to or greater than the monomer(s) reed stream to the second reactor, d) the reaction temperatures in the two autoclaves are set such that when the temperature in the first reactor is different from that in the second reactor, the temperature in the first reactor is lower than the temperature in the second reactor, e) the amount of initiator fed into each reactor being greater than 0
324825
Haas Karl-Uwe
Ledet Winston P.
Sutter Hubert
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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