Polyurethane-based binder system for the production of...

Details Polyurethane-based binder system for the production of... Polyurethane-based binder system for the production of...

C - Chemistry, Metallurgy

08

K

400/7318, 400/74

C08K 5/10 (2006.01) B22C 1/22 (2006.01) C08G 18/54 (2006.01) C08L 75/04 (2006.01)

Patent

CA 1120169

POLYURETHANE-BASED BINDER SYSTEM FOR THE PRODUCTION OF CASTING MOLDS OR CORES ABSTRACT OF THE DISCLOSURE Producing casting molds by blending flowable, granular material such as sand with a binder system including reactants to form polyurethane, i.e., polyisocyanates and polyols, and a solvent consisting of an ester having as its acid component an aliphatic dicarboxylic acid with from six to twelve carbon atoms, or a benzene polycarboxylic acid with at least three COOH groups, and having as its alcohol component an aliphatic, cycloaliphatic, arylaliphatic, or aromatic alcohol having from six to thirteen carbon atoms.

318784

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