Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1973-07-09
1977-11-01
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
252430, 526126, 526352, 526908, 526909, C08F 402, C08F 1002
Patent
active
040566692
ABSTRACT:
Polymerization of ethylene using a transition metal hydrocarbyl complex, especially zirconium tetrabenzyl, supported on alumina consisting of substantially spherical particles having diameters in the range 20-150 .mu.m. The particulate polymer produced by the process contains substantially no "fines" (i.e. particles <100 .mu.m diameter) and has improved pourability.
REFERENCES:
patent: 3513150 (1970-05-01), Matsuura et al.
patent: 3694421 (1972-09-01), Vetta
patent: 3701766 (1972-10-01), Delbouille et al.
Ballard Denis George Harold
Jones Eric
Padget John Christopher
Pioli Alexander Joseph Peter
Robinson Peter Anthony
Imperial Chemical Industries Limited
Smith Edward J.
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