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:
Sep. 04, 1984
Filed:
May. 23, 1983
Applicant:
Inventor:
Richard R Cooper, Wheathampstead, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526106 ; 526901 ; 526 90 ; 526 64 ; 526 68 ; 526123 ; 526129 ;
Abstract
Ethylene is copolymerized in the gas phase, for example in a fluidized bed, using a gaseous mixture comprising ethylene, at least one olefine monomer containing at least 4 carbon atoms, an inert gaseous diluent and, optionally, hydrogen at a total absolute pressure of at least one MN/m.sup.2. The comonomer preferably contains 6 or 8 carbon atoms. The partial pressure of the comonomer may be in the range from 1 kN/m.sup.2 up to 550 kN/m.sup.2. The inert gaseous diluent typically has a partial pressure of at least 250 kN/m.sup.2 and forms 20% molar of the gaseous mixture. The inert gaseous diluent may be nitrogen and is preferably ethane.