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:
Apr. 06, 2021
Filed:
Oct. 24, 2017
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Ferdinand Leifeld, Ludwigshafen, DE;
Achim Fessenbecker, Ludwigshafen, DE;
Steffen Henkes, Ludwigshafen, DE;
Massimiliano Bordignon, Ludwigshafen, DE;
Vandana Kurkal-Siebert, Ludwigshafen, DE;
Laszlo Szarvas, Hong Kong, HK;
Qing Feng Tong, Shanghai, CN;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 120/06 (2006.01); C09C 3/10 (2006.01); C08F 2/20 (2006.01); C08F 2/38 (2006.01); C08F 8/44 (2006.01); C08K 3/22 (2006.01); C08K 3/26 (2006.01); C08K 3/32 (2006.01); C08F 2/10 (2006.01); B01F 17/00 (2006.01); C09C 3/04 (2006.01);
U.S. Cl.
CPC ...
C08F 120/06 (2013.01); B01F 17/005 (2013.01); C08F 2/10 (2013.01); C08F 2/20 (2013.01); C08F 2/38 (2013.01); C08F 8/44 (2013.01); C08K 3/22 (2013.01); C08K 3/26 (2013.01); C08K 3/32 (2013.01); C09C 3/041 (2013.01); C09C 3/10 (2013.01); C08F 2500/02 (2013.01); C08F 2500/03 (2013.01); C08K 2003/2206 (2013.01); C08K 2003/2227 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/2244 (2013.01); C08K 2003/262 (2013.01); C08K 2003/265 (2013.01);
Abstract
An acrylic acid polymer having a weight average molecular weight Min the range from 3500 to 2000 g/mol and a polydispersity index M/M≤2.5, wherein 30% to 60% of the acid groups of the acrylic acid polymers have been neutralized with calcium ions, 30% to 70% of the acrylic acid polymers have been neutralized with sodium ions and 0% to 10% of the acid groups of the acrylic acid polymers have not been neutralized.