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:
Sep. 25, 2012
Filed:
Jul. 30, 2009
Applicants:
Christina Hampel, Oberengstringen, CH;
Ueli Sulser, Unterengstringen, CH;
Jabbar AL Shemari, Zurich, CH;
Jorg Zimmermann, Zurich, CH;
Inventors:
Christina Hampel, Oberengstringen, CH;
Ueli Sulser, Unterengstringen, CH;
Jabbar Al Shemari, Zurich, CH;
Jorg Zimmermann, Zurich, CH;
Assignee:
Sika Technology AG, Baar, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/00 (2006.01); C08K 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polymer P as a dispersant for gypsum compositions, as well as gypsum compositions including the polymer P. The polymer P includes at least one acid unit and at least one long side chain with a molecular weight of at least 1800 g/mol, including polyoxyalkylene groups, and has an acid content of 1.5 to 4 acid groups per gram of polymer.