Coated sand, production method for same, and production method for casting mold

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United States of America Patent

PATENT NO 11400512
APP PUB NO 20200306822A1
SERIAL NO

16893710

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided are: a coated sand having improved fluidity and being capable of improving a filling rate of a casting mold to be obtained; and a coated sand for advantageously manufacturing a casting mold having excellent strength, which coated sand provides a casting mold with good mold-releasability and collapsibility, gives cast products a favorable casting surface, and effectively improves sand adhesion on cast products. The coated sand is formed as a dry granular material having fluidity at room temperature, in which the surface of a refractory aggregate is coated with a solid layer of a water-soluble inorganic binder, and spherical particles of silicone resin having binder-repellency exist on the surface of the binder layer, or form a layer on the surface of the binder layer, a part of the spherical particles being not covered with the water-soluble inorganic binder and being exposed.

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Patent Owner(s)

Patent OwnerAddress
ASAHI YUKIZAI CORPORATIONNOBEOKA-SHI MIYAZAKI 882-8688

International Classification(s)

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  • 2020 Application Filing Year
  • C04B Class
  • 1327 Applications Filed
  • 696 Patents Issued To-Date
  • 52.45 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takama, Tomohiro Niwa-Gun, JP 5 1
Ura, Tetsuya Niwa-Gun, JP 2 1

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  • 0 Citation Count
  • C04B Class
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  • 3 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges7092141301 - 1011 - 2021 - 30050100150200250300350400450500550600650700750

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