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:
Feb. 26, 2008
Filed:
Aug. 02, 2000
Applicants:
Helmut Brehm, Krefeld, DE;
Hans-georg Hartan, Kevelaer, DE;
Inventors:
Helmut Brehm, Krefeld, DE;
Hans-Georg Hartan, Kevelaer, DE;
Assignee:
Ashland Licensing and Intellectual Property LLC, Dublin, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F 22/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to water-soluble, preferably powder-form polymer compositions which are obtained by continuous polymerization of at least one unsaturated monomer. At least one parameter that influences the polymerization is varied according to a recurrent pattern. The invention also relates to the use of the inventive polymer compositions and to a method for producing them.