Cold-setting, polyurethane-based molding material binder

Details Cold-setting, polyurethane-based molding material binder Cold-setting, polyurethane-based molding material binder

1980-06-11

1981-11-10

Welsh, Maurice J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 328N, 260 332R, 528 48, 528 85, C08L 7504

Patent

active

042997518

ABSTRACT:
Cold-setting, polyurethane-based molding material binder for producing molds and cones comprising phenolic polyol and a polyisocyanate characterized in that the polyol is dissolved in a polar high boiling solvent which has a Hansen hydrogen bonding solubility parameter of at least 3.5.

REFERENCES:
patent: 3925296 (1975-12-01), Stone et al.
patent: 3933727 (1976-01-01), Schmid
Gould, Mechanism & Structure in Organic Chemistry, Holt-Dryden, 1959, pp. 57-60.

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