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:
Dec. 03, 1991
Filed:
Apr. 12, 1990
Applicant:
Inventor:
Osman T Aboul-Nasr, Leominster, MA (US);
Assignee:
Polysar Financial Services S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
159-2001 ; 159 131 ; 159 431 ; 159 49 ; 159D / ; 159D / ; 264102 ; 425203 ; 528501 ;
Abstract
A distributor for a falling strand devolatilizer which is a closed top upwardly facing projection having one or more inclined faces and being centered on a tray having strand forming holes there through. The distributor holds polymer melt in a devolatilizer for a longer period of time resulting in lower levels of monomer, oligomer, and diluent in the treated polymer.