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:
Nov. 11, 1986
Filed:
Mar. 19, 1985
Hiroyuki Watanabe, Yamaguchi, JP;
Toru Seita, Yamaguchi, JP;
Toyo Soda Manufacturing Co., Ltd., Yamaguchi, JP;
Abstract
A process for the preparation of chlorinated polyvinyl aromatic compound is described, comprising the steps of: (1) in an aromatic organic solvent, forming a solution of an aromatic compound represented by formula (I): ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is selected from hydrogen and an alkyl groups containing from 1 to 6 carbon atoms, and R.sup.4 and R.sup.5, or R.sup.5 and R.sup.6 can together form a ring by ##STR2## wherein each of R.sup.7, R.sup.8, R.sup.9, and R.sup.10 is selected from hydrogen and an alkyl group containing from 1 to 6 carbon atoms, and n has an average value of from 50 to 30,000; and (2) subjecting the solution to electrolysis reaction in the pressure of an aqueous solution containing chloride ions.