公开(公告)号：US3789036A

公开(公告)日：1974-01-29

申请号：US3789036D

申请日：1971-10-12

Applicant: MONTEDISON SPA

Inventor： LONGI P ,  CAMELI N ,  CERVI R ,  VALVASSORI A ,  PARODI S

IPC: C08F4/02 ,  C08F210/16 ,  C08F15/04 ,  C08F15/40

CPC classification number: C08F210/16 ,  C08F4/022 ,  Y10S526/906 ,  C08F4/6543 ,  C08F4/657 ,  C08F4/695

Abstract: THERE IS DISCLOSED A PROCESS FOR COPOLYMERIZING ETHYLENE AND/OR HIGHER ALPHA-OLEFINS TO ELASTOMERIC SATURATED COPOLYMERS, OR FOR COPOLYMERIZING AT LEAST ONE OF ETHYLENE AND HIGHER ALPHA-OLEFINS WITH HYDROCARBONS CONTAINING MORE THAN ONE DOUBLE BOND TO ELASTOMERIC UNSATURATED, SULFUR-VULCANIZABLE COPOLYMERS IN VERY HIGH YIELDS. THE CATALYST USED IS OBTAINED BY MIXING (A) A HYDRICE OR ORGANOMETALLIC COMPOUND OF A METAL BELONGING TO GROUPS I TO III OF THE MENDELYEEV PERIODIC TABLE WITH (B) THE PRODUCT OBTAINED BY CONTACTING A TITANIUM COMPOUND WITH A SUPPORT CONSISTING OF AN ANHYDROUS HALIDE OF MAGNESIUM, MANGANESE OR CALCIUM IN AN ACTIVE CONDITION.