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:
Oct. 11, 1994
Filed:
Dec. 24, 1992
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525535 ; 525540 ; 528373 ; 528391 ;
Abstract
Sulfonated aniline-type copolymer and a process for their preparation are disclosed. These products comprise a water soluble and alcohol soluble copolymer of a compound (A) selected from the group of aniline, N-alkylaniline and phenylenediamine, and aminobenzene sulfonic acid (B); said sulfonated product being a following compound of a general formulae I to V stated in the specification, or a mixture thereof. Also, process for the sulfonated aniline-type copolymer comprises the steps: