Process for the production of powdery, thermoplastic copolymers

Details Process for the production of powdery, thermoplastic copolymers Process for the production of powdery, thermoplastic copolymers

1979-11-01

1981-10-13

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429A, 252431R, 428402, 526 88, 526142, 5261692, 5263486, 526903, C08F 214, C08F 476

Patent

active

042949475

ABSTRACT:
A process for the production of a powdery, thermoplastic copolymer of ethylene and butene-(1) having a density of up to about 0.930 g/cm.sup.3 which comprises copolymerizing a mixture of ethylene and butene-(1) at 50.degree.-95.degree. C. and 10-100 bar in the presence of a catalyst which comprises (1) the reaction product of a chlorine and/or alkoxy-containing vanadyl (V) compound and an organic aluminum compound selected from the group consisting of ethyl aluminum dichloride, diethyl aluminum chloride, isobutyl aluminum dichloride, diisobutyl aluminum chloride, and mixtures thereof, and (2) an aluminum alkyl activating compound therefor, selected from the group consisting of aluminum trialkyls, alkyl aluminum sesquichloride, alkyl aluminum dichloride, and mixtures thereof, wherein the polymerization reaction is carried out in a solvent which comprises liquid butene-(1).

REFERENCES:
patent: 2929807 (1960-03-01), Leatherman et al.
patent: 3920621 (1975-11-01), Baxma nn et al.

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