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:
Mar. 19, 2019
Filed:
Sep. 08, 2014
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Assignee:
BASF SE, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/395 (2006.01); C11D 1/66 (2006.01); C11D 3/386 (2006.01); C08G 69/04 (2006.01); C08G 69/10 (2006.01); C08G 73/10 (2006.01); C11D 3/37 (2006.01); C08G 73/14 (2006.01); C11D 3/00 (2006.01);
U.S. Cl.
CPC ...
C08G 69/04 (2013.01); C08G 69/10 (2013.01); C08G 73/1092 (2013.01); C08G 73/14 (2013.01); C11D 3/0036 (2013.01); C11D 3/3719 (2013.01); C08G 2230/00 (2013.01); Y02W 10/37 (2015.05);
Abstract
The present invention relates to methods for producing polyaspartic acids with a weight-average molecular weight (Mw) of from 6,000 to 15,000 g/mol. The invention also relates to polyaspartic acids which can be obtained by the method according to the invention, to a composition containing the polyaspartic acids, and to the use thereof as scale inhibitors, dispersants and as an additive in dishwashing agents, detergents or cleaning agents.