34f08f34_rials_patent_application_class__Description
20100126690 05-27-2010 [Description] 
USE OF AMINE BLENDS FOR FOUNDRY SHAPED CORES AND CASTING METALS - The present invention relates to an improved process for preparing foundry shapes by the cold box process, a process for making cores and moulds and a process for casting metals, carrying out as curing catalyst system a blend comprising at least two tertiary amines.
Utilizing particular mold materials patent application class