Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1982-08-09
1985-06-25
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526 88, C08F 234
Patent
active
045255482
ABSTRACT:
Provided is a method for vapor phase polymerization of olefins. An olefin gas is fed into a horizontal cylindrical vessel having a lower curved surface corresponding to 30 to 180 degrees of the circumference of the vessel and extending substantially the length of the vessel formed by a perforated plate having a multiplicity of holes spaced at intervals in the range of from 0.5 to 50 mm, through said plate from an olefin feed chamber mounted below and covering the plate. A polymer catalyst is fed into the horizontal cylindrical vessel through a polymerization catalyst inlet port located in a portion of the vessel other than the lower curved surface formed by the perforated plate. The olefin is reacted in the presence of a catalyst with agitation to form polymer. Unreacted olefin is removed through a discharge port located in a portion of the vessel other than the lower curved surface formed by the perforated plate. Polymer is removed through an outlet port located in a portion of the vessel other than the lower curved surface formed by the perforated plate.
REFERENCES:
patent: 3999951 (1976-12-01), Bowers et al.
patent: 4101289 (1978-07-01), Jezl
patent: 4159307 (1979-06-01), Shigeyasu et al.
patent: 4200715 (1980-04-01), Lynch
Kubo Kunimichi
Miyazaki Yasunosuke
Miyoshi Mituji
Watanabe Motokazu
Yoshikawa Mamoru
Michl Paul R.
Miller Austin R.
Nippon Oil Company Limited
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