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:
Jan. 01, 2013
Filed:
Dec. 23, 2009
Giorgio Ballarini, Ferrara, IT;
Antonio Mileo, Mercato San Severino, IT;
Luca Soffritti, Pontelagoscuro, IT;
Enrico Soffritti, Legal Representative, Ferrara, IT;
Giorgio Ballarini, Ferrara, IT;
Antonio Mileo, Mercato San Severino, IT;
Luca Soffritti, Pontelagoscuro, IT;
Enrico Soffritti, legal representative, Ferrara, IT;
Basell Poliolefine Italia s.r.l., Milan, IT;
Abstract
A method for treating polymer particles with steam in a steaming vessel downstream a polymerization process, the method comprising contacting polymer particles with a counter-current flow of steam, wherein the flow rate of steam entering said steaming vessel is continuously maintained proportional to the production rate of said polymer in said polymerization process and to the gradient between the temperature (T) of the polymer exiting said steaming vessel and the temperature (T) of the polymer entering said steaming vessel.