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:
Jul. 07, 1981
Filed:
Apr. 23, 1979
Applicant:
Inventors:
Francis Fournel, Chauny, FR;
Salomon Soussan, St. Fons, FR;
Assignee:
Rhone-Progil, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 65 ; 260 / ; 422135 ; 526 75 ; 526 88 ; 5263441 ;
Abstract
A vertical autoclave suitable for the bulk polymerization of vinyl chloride based polymers and copolymers embodying agitation means comprising at least one agitator (A) in the form of helicoidal ribbon about a rotatable shaft in the upper portion of the autoclave and an agitator (B) having a rotatable shaft passing through the bottom portion of the autoclave with at least one arm located adjacent to and having a profile corresponding to the bottom of the autoclave, and means for independently driving the agitators (A) and/or (B).