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. 31, 2022
Filed:
Oct. 18, 2018
Applicants:
Basf SE, Ludwigshafen am Rhein, DE;
Saint-gobain Placo, Courbevoie, FR;
Inventors:
Uwe Gehrig, Trostberg, DE;
Fabian Niedermair, Trostberg, DE;
Joachim Dengler, Trostberg, DE;
Georg Daxenberger, Trostberg, DE;
Hamouda Jaffel, Aulnay-sous-Bois, FR;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/14 (2006.01); C04B 18/16 (2006.01); C04B 24/16 (2006.01); C04B 24/42 (2006.01); C04B 38/10 (2006.01); C04B 103/20 (2006.01); C04B 103/30 (2006.01); C04B 103/40 (2006.01); C04B 103/42 (2006.01); C04B 111/00 (2006.01); C04B 111/60 (2006.01);
U.S. Cl.
CPC ...
C04B 28/14 (2013.01); C04B 18/167 (2013.01); C04B 24/16 (2013.01); C04B 24/42 (2013.01); C04B 38/10 (2013.01); C04B 2103/20 (2013.01); C04B 2103/30 (2013.01); C04B 2103/40 (2013.01); C04B 2103/42 (2013.01); C04B 2111/0062 (2013.01); C04B 2111/00637 (2013.01); C04B 2111/00681 (2013.01); C04B 2111/60 (2013.01);
Abstract
The present invention relates to a gypsum composition comprising recycled gypsum and a foam former comprising at least one alpha-sulfo fatty acid disalt, to a process for production thereof and to an article comprising the gypsum composition of the invention. The present invention further relates to the use of a foam former comprising at least one alpha-sulfo fatty acid disalt for reducing the wet density of an aqueous gypsum composition having a recycled gypsum content of at least 0.5% by weight.