The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 1996
Filed:
Oct. 24, 1994
Applicant:
Inventors:
Yoshihisa Yamaguchi, Kawasaki, JP;
Shinjiro Suga, Kawasaki, JP;
Masatoshi Morikawa, Setagaya-ku, JP;
Kunimichi Kubo, Meguro-ku, JP;
Motokazu Watanabe, Kawasaki, JP;
Yasuhiko Sano, Katsushika-ku, JP;
Assignee:
Nippon Petrochemicals Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526 74 ; 526 88 ; 5263486 ; 526901 ;
Abstract
A process for producing polyolefin with a vapor-phase fluidized-bed reactor, wherein the reaction is started after filling the reactor with particles which contain moisture and/or molecular oxygen and can form a fluidized bed in order to prevent the formation of molten resin which is liable to occur at the start of the reaction and to attain a smooth operation of the reactor.