Cold set phenol-formaldehyde resin

Details Cold set phenol-formaldehyde resin Cold set phenol-formaldehyde resin

1980-04-14

1982-01-19

Schain, Howard E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

525480, 525508, 528139, 528140, 528159, 528163, 528164, 528165, C08G 810

Patent

active

043116191

ABSTRACT:
A phenol-aldehyde resin useful in such applications as a cold-set binder for cores and molds used in the foundry industry and reactive prepolymers used in reaction injection molding compositions produced by the steps of reacting a phenol and aldehyde in a mole ratio of 1 to 1-2.3 in the presence of catalytic amounts of an organic compound of aluminum, zirconium or titanium.

REFERENCES:
patent: 3274139 (1966-09-01), Lambuth
patent: 3299167 (1967-01-01), Knowlson et al.
patent: 3312650 (1967-04-01), Case et al.
patent: 3485797 (1969-12-01), Robins
patent: 4022942 (1977-05-01), Anderson et al.
patent: 4048125 (1977-09-01), Ingram
patent: 4060504 (1977-11-01), Higginbottom
patent: 4083817 (1978-04-01), Anderson
patent: 4120847 (1978-10-01), Culbertson
patent: 4140845 (1979-02-01), Vasishth
patent: 4157324 (1979-06-01), Culbertson
Chem-Abstracts, vol. 52, 1958, 7763i-77764a-c, Fraser et al.
Journal of Polymer Science-Polymer Letters Edition, vol. 17, 489-492 (1979), Pizzi.

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