Ethylene → Ethylene

Beteiligte Stoffe

Reaktionsschritte

With the aid of a mixed catalyst of 0.0015 part by weight of this titanium trichloride catalyst and 0.016 part by weight of isoprenylaluminum, 11.5 parts by weight of ethene is first polymerized for 1/2 hour under a pressure of 7-8 atmospheres gauge in 15 parts by weight of a C4 -cut containing 38.4% trans-butene-2, 28.8% cis-butene-2, 32.5% butane and 0.3% butene-1 at a temperature of 50° C. Thereafter, 0.002 part by weight of hydrogen is added thereto. Under a total pressure of 8-10 atm. gauge, the polymerization is continued. The ethene is added during the entire polymerization time of 21/2 hours. Subsequently, the polyethylene suspension is expanded via nozzles into a second container, thus obtaining 11.1 parts by weight of a terpolymer of ethene, butene-1 and butene-2 with the following properties:

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