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:
May. 25, 2004
Filed:
Feb. 24, 2003
Applicant:
Inventors:
Richard Mertens, Krefeld, DE;
Gregor Herth, Krefeld, DE;
Assignee:
Stockhausen GmbH & Co. KG, Krefeld, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
C08F / ;
Abstract
The invention relates to water-soluble homopolymers and copolymers, which comprise an EbC50 value according to the algae toxicity test of <i> Scenedesmus subspicatus</i> of grater than 10 mg/l. The invention also relates to the production and use of these polymers as flocculation aids or thickeners and as a constituent of a plant protective agent or of an erosion protective agent.