Process for preparation of ethylene polymer wax

Details Process for preparation of ethylene polymer wax Process for preparation of ethylene polymer wax

1982-03-22

1983-11-29

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526114, 526122, 526124, 526127, 526128, 526133, 526151, 526348, 5263484, 526352, 526905, 585512, 585513, 585520, C08F 240, C08F 1002

Patent

active

044181841

ABSTRACT:
Improved process for preparing an ethylene polymer wax which comprises polymerizing ethylene or copolymerizing ethylene with up to 10 mole % of an alpha-olefin having 3 to 20 carbon atoms in the presence of (A) a highly active titanium catalyst component activated by a magnesium compound and (B) an organoaluminum catalyst component composed of (B-1) an organoaluminum compound free from halogen bonded directly to the aluminum atom and (B-2) a halogen compound of an element selected from the group consisting of elements other than titanium of Groups III and IV of the Mendelejeff's periodic table, the atomic ratio of halogen to aluminum in the organoaluminum catalyst component (B) being from about 1:6 to about 9:10, provided that when said halogen compound is a halogen compound of carbon, this atomic ratio is from about 1:6 to about 10:1, and said polymerization or copolymerization being carried out under such conditions that the concentration of ethylene polymer wax in the polymerization or copolymerization system is about 200 to about 600 g/liter of solvent, to form a wax having a viscosity average molecular weight of up to about 6000.

REFERENCES:
patent: 4172050 (1979-10-01), Gessell
patent: 4189553 (1980-02-01), Birkelbach
patent: 4198315 (1980-04-01), Birkelbach et al.
patent: 4224186 (1980-09-01), Lowery et al.

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