Process and heavy metal catalyst for the polymerization of .alph

Details Process and heavy metal catalyst for the polymerization of .alph Process and heavy metal catalyst for the polymerization of .alph

1980-12-10

1982-12-14

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 252429C, 526116, 526119, 526121, 526122, 526124, 526125, 526352, C08F 402, C08F 1000

Patent

active

043639020

ABSTRACT:
Poly-.alpha.-olefins, particularly polyethylene, having a broad molecular-weight distribution, can be prepared in the presence of a catalyst solid which is manufactured in two reaction steps, from a primary solid containing magnesium and chlorine which has been reacted, in a reaction stage A, with alkoxy compounds of elements of Groups I to VI of the Mendeleev Periodic Table which contains at least one secondary or tertiary alkoxy group, and with halogen-containing metal compounds of elements of IV and/or V sub-group(s) of the Mendeleev Periodic Table and, in reaction stage B, with halogen-containing metal compounds of elements of IV and/or V sub-group(s) of the Mendeleev Periodic Table, and/or metal organyl compounds of metals of the II and/or III main group(s) of the Mendeleev Periodic Table. The sequence of the reaction stages A and B is not critical for the success of the process according to the invention.

REFERENCES:
patent: 4109071 (1978-08-01), Berger et al.
patent: 4115319 (1978-09-01), Scata et al.
patent: 4202953 (1980-05-01), Matsuura et al.
patent: 4296223 (1981-10-01), Berger

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