Binder, method for manufacturing same and method for manufacturing casting sand mold

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United States of America Patent

PATENT NO 11932732
APP PUB NO 20210147605A1
SERIAL NO

17048801

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Importance

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Abstract

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Provided are a binder in the producing of a casting sand mold according to an ink jet type lamination shaping method in which a binder is printed with respect to sand, a method for producing the binder, and a method for producing a casting sand mold using the binder. Specifically, provided are a binder useful for a casting sand mold of an ink jet type, containing: a resol-type phenolic resin that is obtained by reacting aldehydes (A1), phenols (P1), and a compound (N) having two or more phenolic hydroxyl groups in one molecule or by reacting the aldehydes (A1) and a novolac-type phenolic resin (N1), in the presence of an alkali catalyst, and has a dispersion degree (Mw/Mn) of 1.0 to 3.5 and a phenolic monomer residue of 5% or less, a method for producing the binder, and a method for producing a casting sand mold.

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Patent Owner(s)

Patent OwnerAddress
DIC CORPORATIONTOKYO 174-8520

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kimoto, Seiji Ichihara, JP 5 13

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