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. 17, 1981
Filed:
Dec. 03, 1979
Louis Cohen, Avon Lake, OH (US);
The B. F. Goodrich Company, Akron, OH (US);
Abstract
This invention relates to the reduction of polymer buildup on the inner surfaces of a polymerization reaction vessel by applying a coating to the inner surfaces thereof. An approximate monolayer coating on the inner surfaces of the reactor results from applying thereto an aqueous solution of a hydrophilic polymer-inhibitor complex, for example, such as a complex of polyvinyl alcohol and the disodium salt of bisphenol A. When polymerizing olefinic monomers, such as vinyl halides, vinylidene halides, and vinylidene monomers having at least one terminal CH.sub.2 .dbd.C< grouping, and mixtures thereof, in the presence of said coating, polymer buildup on the inner surfaces of the reaction vessel is substantially eliminated.