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:
Apr. 23, 1996
Filed:
Jun. 16, 1994
Showa Denko K. K., Tokyo, JP;
Abstract
A polymer represented by the following formula (III) ##STR1## wherein R.sub.1 and R.sub.2 each independently represents H, a straight or branched alkyl group or alkoxy group having 1 to 20 carbon atoms, X is S, O, or NR.sub.3, R.sub.3 represents a straight or branched akyl group having 1 to 6 carbon atoms or a phenyl group, Y represents R.sub.4 S.sup.+ R.sub.5 M.sup.- or OR.sub.6, R.sub.4 and R.sup.5 each independently represent a straight or branched alkyl group having 1 to 5 carbon atoms, or form a heterocyclic ring together with sulfur, and M.sup.- is an anion, R.sub.6 represents H or a straight or branched alkyl group having 1 to 10, m is 1 to 2, and n represents a degree of polymerization and is a value larger than 5.