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. 15, 1994
Applicant:
Inventors:
Martin Hille, Liederbach, DE;
Heinz Wittkus, Frankfurt am Main, DE;
Jurgen Tonhauser, Oestrich-Winkel, DE;
Fritz Engelhardt, Frankfurt am Main, DE;
Ulrich Riegel, Frankfurt am Main, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526240 ; 524-3 ; 526264 ; 526287 ; 507118 ;
Abstract
The water-soluble copolymer comprises 5-90% by weight of groups of the formula ##STR1## in which R.sup.1 is hydrogen or methyl, R.sup.2 is C.sub.2 -C.sub.10 -alkylene, and Me is ammonium or an alkali metal, 5-90% by weight of groups of the formula