Ethylene copolymerization using diluent gas

Details Ethylene copolymerization using diluent gas Ethylene copolymerization using diluent gas

1983-05-23

1984-09-04

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526901, 526 90, 526 64, 526 68, 526123, 526129, C08F 1002

Patent

active

044698550

ABSTRACT:
Ethylene is copolymerized in the gas phase, for example in a fluidized bed, using a gaseous mixture comprising ethylene, at least one olefine monomer containing at least 4 carbon atoms, an inert gaseous diluent and, optionally, hydrogen at a total absolute pressure of at least one MN/m.sup.2. The comonomer preferably contains 6 or 8 carbon atoms. The partial pressure of the comonomer may be in the range from 1 kN/m.sup.2 up to 550 kN/m.sup.2. The inert gaseous diluent typically has a partial pressure of at least 250 kN/m.sup.2 and forms 20% molar of the gaseous mixture. The inert gaseous diluent may be nitrogen and is preferably ethane.

REFERENCES:
patent: 2936303 (1960-05-01), Goins
patent: 4133944 (1979-01-01), Cooper et al.

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