Polyurethane-based binder system for the production of casting m

Details Polyurethane-based binder system for the production of casting m Polyurethane-based binder system for the production of casting m

1978-05-30

1980-11-04

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 318T, 260 318B, C08K 510

Patent

active

042319145

ABSTRACT:
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.

REFERENCES:
patent: 3143517 (1964-08-01), Heiss
patent: 3440224 (1969-04-01), Impola et al.
patent: 3676392 (1972-07-01), Robins
patent: 3726827 (1973-04-01), Jones et al.
patent: 3905934 (1975-09-01), Gardikes
patent: 4076660 (1978-02-01), Olstowski et al.

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