Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1977-12-22
1979-06-12
Marquis, Melvyn I.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
164 43, 260 19R, 260 19N, 260 19A, 260 25, 260 28R, 260326R, 260 334R, 260 38, 260831, 260848, C08L 9100
Patent
active
041579933
ABSTRACT:
This invention relates to resin-coated sand compositions useful in the preparation of foundry sand cores and molds comprising sand, a solid novalac resin, a lubricant-containing solid resole resin, and optionally, hexamethylenetetramine in an amount of up to about 5 parts by weight based on 100 parts by weight of the total amount of resin.
REFERENCES:
patent: 2813840 (1957-11-01), Salzberg
patent: 2888418 (1959-05-01), Albanese et al.
patent: 3850874 (1974-11-01), Grazen et al.
patent: 3857811 (1974-12-01), Grazen et al.
patent: 3944514 (1976-03-01), Nishiyama et al.
patent: 3993620 (1976-11-01), Yamanishi et al.
Funabiki Kyohei
Inoue Naomitsu
Matsushima Noriaki
Casella Peter F.
Marquis Melvyn I.
Mudd James F.
Stein David A.
Sumitomo Durez Company Ltd.
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