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Process for preparing elastomeric copolymers of ethylene and higher alpha- olefins
Process for preparing elastomeric copolymers of ethylene and higher alpha- olefins
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机译：乙烯和高级α-烯烃的弹性体共聚物的制备方法
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摘要
High yields of elastomeric copolymers of ethylene and higher alpha- olefins, or of ethylene, higher alpha-olefins and unsaturated monomers (polyenes) containing two or more double bonds are obtained by copolymerizing a mixture of the monomers in contact with a catalyst prepared by mixing a catalyst- forming component which is an organometallic compound of aluminum with a supported catalyst-forming component obtained by contacting a halogenated titanium compound with a carrier or support consisting of or comprising an anhydrous Mg or Mn halide partially or completely complexed with a Lewis base capable of forming a complex with it.PPThe copolymers so obtained have valuable mechanical properties, in particular a relatively low value of permanent set and do not exhibit excessive residual deformation at break.
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