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:
Jun. 02, 1981
Filed:
Jun. 12, 1979
Applicant:
Inventors:
Hans Trabitzsch, Seeheim, DE;
Josef Frieser, Weiterstadt, DE;
Achim Koschik, Darmstadt, DE;
Hermann Plainer, Darmstadt, DE;
Assignee:
Rohm GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 148 / ; 210764 ; 422 16 ; 422 17 ;
Abstract
What is disclosed are stable aqueous solutions, useful for example to treat water to stabilize its hardness and to render it anticorrosive or biocidal, containing a dissolved cationic component, such as polyvalent metal cation or a cationic surface active agent, and a dissolved anionic vinyl copolymer comprising both anionic monomer units having a carboxylic acid group and units of a anionic monomer having an ammonium group.