Low free formaldehyde phenolic polyol formulation

Details Low free formaldehyde phenolic polyol formulation Low free formaldehyde phenolic polyol formulation

1992-11-16

1993-11-23

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528129, 528140, 528142, 528161, 528219, 523139, C08G 804

Patent

active

052645355

ABSTRACT:
A resin is prepared by the reaction of a phenol, an aldehyde and an aliphatic hydroxy compound containing two or more hydroxy groups per molecule in the presence of a divalent metal ion catalyst. These resins react with polyisocyanates to form polyurethanes that are useful binders for foundry cores and molds.

REFERENCES:
patent: 2376213 (1945-05-01), Watson et al.
patent: 3156670 (1964-11-01), Soldatos
patent: 3894981 (1975-07-01), Kruglikov et al.
patent: 4079031 (1978-03-01), Sardessai et al.
patent: 4148777 (1979-04-01), LaBar et al.
patent: 4150194 (1979-04-01), Watts et al.
patent: 4157324 (1979-06-01), Culbertson
patent: 4209428 (1980-06-01), Dumolo
patent: 4404334 (1983-09-01), Bornstein
patent: 4448951 (1984-05-01), Rupert et al.
patent: 4473669 (1984-09-01), Rupert et al.
patent: 4546124 (1985-10-01), Laitar et al.
patent: 4634758 (1987-01-01), Laitar et al.
patent: 4723592 (1988-02-01), Laitar et al.
patent: 5021539 (1991-06-01), Armbruster et al.

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