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:
Feb. 08, 1983
Filed:
Dec. 24, 1980
Alan J Olson, Westlake, OH (US);
Robert G Vielhaber, Doylestown, OH (US);
The B. F. Goodrich Company, Akron, OH (US);
Abstract
A process is disclosed for recovering chlorinated poly(vinyl chloride) ('CPVC') which is dissolved in liquid chlorine ('Cl.sub.2 ') to form a CPVC solution. CPVC is recovered by adding the CPVC solution to a halogenated lower alkaline ('HLA'), which is simultaneously an excellent solvent for liquid Cl.sub.2 and a very poor solvent for CPVC. This peculiar property causes the CPVC to be precipitated from the three-component mixture as a finely divided solid with different morphological properties than if the HLA was added to the CPVC solution. The solid CPVC precipitated may then be separated from the solution of liquid Cl.sub.2 in the HLA. This solution of Cl.sub.2 in HLA is further separated into its component liquids, namely HLA and liquid Cl.sub.2 which are then each reused.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile