34f08f34_rials_patent_application_class__Description
20130248138 09-26-2013 [Description] 
POLYURETHANER-BASED BINDER FOR PRODUCING CORES AND CASTING MOLDS USING ISOCYANATES CONTAINING A URETONIMINE AND/OR CARBODIIMIDE GROUP, A MOLD MATERIAL MIXTURE CONTAINING SAID BINDER, AND A METHOD USING SAID BINDER - 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.
Utilizing particular mold materials patent application class