Manufacture of ethylene polymers

Details Manufacture of ethylene polymers Manufacture of ethylene polymers

1975-04-18

1976-10-19

Holler, Alan

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 6478, 526 82, 526 88, C08F 202, C08F 238, C08F 1002

Patent

active

039870200

ABSTRACT:
Ethylene polymers are produced at pressures between 1000 and 4000 atmospheres and temperatures of from 120.degree. to 300.degree. C in a reaction zone having an 1/d ratio of from 10:1 to 20:1 while shear forces act on the reaction mixture. The ethylene is fed continuously and radially to the reaction zone at a velocity of from 2 to 20 m/sec. The average residence time of the reaction mixture in the reaction zone is from 20 to 90 seconds. The products show a broad molecular weight distribution and are particularly advantageous for use as extruded coatings.

REFERENCES:
patent: 2897183 (1959-07-01), Christl et al.
patent: 3536693 (1970-10-01), Schrader et al.
patent: 3575950 (1971-04-01), Gleason et al.
patent: 3692763 (1972-09-01), Van Saane et al.
patent: 3756996 (1973-09-01), Pugh et al.

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