Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1980-06-19
1982-12-28
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, 526114, 526116, 526124, 526119, 526352, C08F 402, C08F 1000
Patent
active
043662986
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 secondary and/or tertiary alcohols and with halogen-containing metal compounds of elements of IV and/or V sub-group(s) of the Mendeleev Periodic Table, and, in a reaction stage B, with halogen-containing metal compounds of elements of IV and/or V sub-group(s) of the Mendeleev Periodic Table and 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: 4097409 (1978-06-01), Speakman
patent: 4109071 (1978-08-01), Berger et al.
patent: 4115319 (1978-09-01), Icata et al.
patent: 4226964 (1980-10-01), Tanaka et al.
Smith Edward J.
Wacker-Chemie GmbH
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