Process for the production of polyethylene and ethylene...

Details Process for the production of polyethylene and ethylene... Process for the production of polyethylene and ethylene...

2007-04-04

2011-11-01

Wu, David W (Department: 1762)

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

Synthetic resins

Polymerizing in tubular or loop reactor

C526S352000, C422S131000

Reexamination Certificate

active

08048971

ABSTRACT:
The invention provides a process and an apparatus for the high pressure polymerization of ethylene in which a jet pump is used to pump a fluid into a polymer/monomer product mixture leaving a bumped tubular reactor. The fluid may be recycled monomer or another fluid such as a modifier.

REFERENCES:
patent: 3306889 (1967-02-01), Schappert
patent: 3627746 (1971-12-01), Beals et al.
patent: 3714123 (1973-01-01), Mancini et al.
patent: 4027085 (1977-05-01), Clemmer et al.
patent: 4215207 (1980-07-01), Durand et al.
patent: 4255387 (1981-03-01), Gardner
patent: 4342853 (1982-08-01), Durand et al.
patent: 2134121 (1984-08-01), None
patent: WO 2004/027264 (2004-04-01), None

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