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Binder composition for producing template, and method for producing template

A technology of composition and binder, which is applied in the direction of casting moulds, manufacturing tools, casting molding equipment, etc., can solve problems such as internal cracks, unqualified castings, and operator hazards, and achieve the effect of improving the final strength

Active Publication Date: 2014-10-15
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the final strength of the mold, it is especially necessary when producing a large mold. If the strength is insufficient, the mold will crack, or internal cracks will occur during casting, or it will bring danger to the operator, and the resulting casting may Become a non-conforming product

Method used

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  • Binder composition for producing template, and method for producing template

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Embodiment

[0111] Hereinafter, the present invention will be described using specific examples and the like. In addition, the evaluation item in an Example etc. was measured as follows.

[0112]

[0113] The content was calculated by the following method using ion chromatography.

[0114] Device: DX-320 (manufactured by Dionex Corporation, Japan)

[0115] Column: Ion Pac AS11HC

[0116] Eluent: 10mM KOH (0min) → 40mM KOH (25min)

[0117] Flow: 1.5mL / min

[0118] Autosuppressor (Autosuppressor): ASRS-300 (manufactured by Dionex Corporation of Japan)

[0119] Detection: Conductivity

[0120] MS device: LCMS-2010EV (manufactured by Shimadzu Corporation)

[0121] Flow rate: 1mL / min

[0122]

[0123] The content was calculated by the following method using gel permeation chromatography.

[0124] Detector: RI

[0125] Column: TSKgelα-M×2 (manufactured by Tosoh Corporation)

[0126] Temperature: 40°C

[0127] Eluent: N,N-Dimethylformamide

[0128] Flow: 1.0mL / min

[0129] Conve...

manufacture example 1

[0193]

[0194] Add 20.0 g of spent molasses (manufactured by Kaset Thai Sugar Co.), 40.0 g of ion-exchanged water, and 160 g of methyl isobutyl ketone (manufactured by Wako Pure) to a 500 mL titanium electromagnetic valve type autoclave (manufactured by Nitto High Pressure Co., Ltd.). Pharmaceutical Co., Ltd.) and 2.0 g of phosphoric acid (85% purity, manufactured by Aldrich). After sealing the container, the inner space was fully replaced with nitrogen gas. Thereafter, the temperature was raised to 140° C. while fully stirring the contents, and after reaching 140° C., the reaction was carried out while maintaining heat retention and stirring for 3 hours. In addition, the gauge pressure at the time of reaction was 0.4 MPa. After completion of the reaction, the temperature of the content was cooled to 30° C. or lower while maintaining stirring. After cooling, the contents were filtered to remove solid components, samples were collected from the aqueous solution phase and t...

manufacture example 2

[0196]

[0197] Add 20.0 g of spent molasses (manufactured by Kaset Thai Sugar Co.), 40.0 g of ion-exchanged water, and 160 g of methyl isobutyl ketone (manufactured by Wako Pure) to a 500 mL titanium electromagnetic valve type autoclave (manufactured by Nitto High Pressure Co., Ltd.). Pharmaceutical Co., Ltd.) and 2.0 g of phosphoric acid (85% purity, manufactured by Aldrich). After sealing the container, the inner space was fully replaced with nitrogen gas. Thereafter, the temperature was raised to 140° C. while fully stirring the contents, and after reaching 140° C., the reaction was carried out while maintaining heat retention and stirring for 3 hours. In addition, the gauge pressure at the time of reaction was 0.4 MPa. After completion of the reaction, the temperature of the content was cooled to 30° C. or lower while maintaining stirring. After cooling, the contents were filtered to remove solid content, and then a 50% by weight aqueous sodium hydroxide solution was ...

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Abstract

A binder composition for producing a template, which comprises a 5-hydroxymethylfurfural composition produced from molasses and an acid-curable resin. It is preferred that the 5-hydroxymethylfurfural composition is produced through a step of subjecting molasses to a dehydration reaction in a solvent in the presence of an acid catalyst to produce a reaction mixture and a step of extracting the reaction mixture with an organic solvent to produce the 5-hydroxymethylfurfural composition, and it is more preferred that the content ratio of the 5-hydroxymethylfurfural composition in the binder composition is 1 to 50 wt% inclusive.

Description

technical field [0001] The present invention relates to a binder composition for mold molding, a composition for mold using the same, and a method for producing a mold. Background technique [0002] Acid-curable no-bake molds are produced by adding a mold-forming binder containing an acid-curable resin and a curing agent containing organic sulfonic acid, sulfuric acid, phosphoric acid, etc. to refractory particles such as silica sand, and mixing them. After kneading, the obtained kneading sand is filled into a model such as a wooden mold, and the acid-curable resin is cured. A furan resin, phenolic resin, etc. are used for the acid curable resin, and furfuryl alcohol, furfuryl alcohol-urea formaldehyde resin, furfuryl alcohol-formaldehyde resin, furfuryl alcohol-phenol-formaldehyde resin, other known modified furan resin, etc. are used for the furan resin. The obtained mold is used when casting castings such as machine casting parts, construction machine parts, and automobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C1/22
CPCB22C1/22B22C1/2246B22C1/224
Inventor 松尾俊树渡边雅彦矢代快
Owner KAO CORP
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