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:
Mar. 23, 1982
Filed:
May. 01, 1980
Applicant:
Inventor:
George B Hoey, Ferguson, MO (US);
Assignee:
Mallinckrodt, Inc., St. Louis, MO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
536119 ; 424-5 ; 424180 ; 536-4 ; 536115 ; 536 18 ; 560 37 ; 560 12 ; 560 13 ; 560 34 ; 560 43 ; 560 47 ;
Abstract
Ethylene is polymerized in the vapor phase in a stirred bed reactor. The reactor employed is vertically aligned and has a centrally positioned cored draft tube therein. An auger circulates polymer solids through the draft tube while coolant is circulated there through to remove the heat of polymerization.