PHENOL RESIN COMPOSITION FOR SHELL MOLDING, RESIN-COATED SAND FOR SHELL MOLDING, AND SHELL MOLDING DIE OBTAINED USING THE SAME

Title:

PHENOL RESIN COMPOSITION FOR SHELL MOLDING, RESIN-COATED SAND FOR SHELL MOLDING, AND SHELL MOLDING DIE OBTAINED USING THE SAME

Document Type and Number:

WIPO Patent Application WO/2011/010559

Kind Code:

A1

Abstract:

Provided are a phenol resin composition for shell molding, from which a molding die having a low thermal expansion coefficient and high deflectability can be advantageously formed, a resin-coated sand obtained using the same, and a shell molding die obtained using such a resin-coated sand. A naphthol is used together with a phenol. These phenol components are caused to react with an aldehyde to obtain a phenol resin. The phenol resin is combined with a fatty acid amide to constitute a phenol resin composition for shell molding, which is capable of exhibiting useful die characteristics.

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Inventors:

MORI KEIICHI (JP)
TAKAMA TOMOHIRO (JP)

Application Number:

PCT/JP2010/061591

Publication Date:

January 27, 2011

Filing Date:

July 08, 2010

Export Citation:

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Assignee:

ASAHI ORGANIC CHEM IND (JP)
MORI KEIICHI (JP)
TAKAMA TOMOHIRO (JP)

International Classes:

B22C1/22; B22C9/02

Foreign References:

JPH04331223A	1992-11-19
JP2007275988A	2007-10-25
JPH01266939A	1989-10-24

Attorney, Agent or Firm:

NAKASHIMA, Michio et al. (JP)
Nakajima Michio (JP)

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