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:
Nov. 15, 2016
Filed:
Nov. 17, 2011
Applicants:
Carsten Cornelissen, Duesseldorf, DE;
Diether Koch, Mettmann, DE;
Christian Priebe, Wuelfrath, DE;
Inventors:
Assignee:
ASK CHEMICALS GMBH, Hilden, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 8/28 (2006.01); B22C 1/22 (2006.01); C08G 18/18 (2006.01); C08G 18/54 (2006.01); C08G 18/79 (2006.01); C08K 3/36 (2006.01);
U.S. Cl.
CPC ...
C08G 8/28 (2013.01); B22C 1/22 (2013.01); B22C 1/2253 (2013.01); B22C 1/2273 (2013.01); C08G 18/1891 (2013.01); C08G 18/542 (2013.01); C08G 18/797 (2013.01); C08K 3/36 (2013.01);
Abstract
The present invention relates to a polyurethane-based binder using isocyanates containing uretonimine and/or carbodiimide groups for producing cores and casting molds, to a mold material mixture containing the binder, and to a method using the binder for producing casting molds.