LOW-ADHESION MATERIAL, MOLD FOR SHAPING RESIN AND STAINPROOF MATERIAL

WIPO Patent Application WO/2007/116571

A1

An upper side half (1) of a resin-shaping mold which bears both a cavity member (6) constituting the inner bottom face (5) of a cavity (4) and a surround member (7). The cavity member (6) is a low-adhesion material according to the present invention which is composed of a body (8) and a face (10) formed on the underside (9) of the body (8) that is to come into contact with a fluid resin. The body (8) is made of a material consisting of the first material 3YSZ and the second material ZrN at a prescribed ratio. The face (10) is made of Y2O3 exhibiting low adhesion to cured resins and has a lower thermal expansion coefficient than that of the body (8). The cavity member (6) is produced by joining the body (8) and the face (10) at high temperature and then cooling the obtained composite, whereby a compressive residual stress is generated in the face (10) owing to the difference in thermal expansion coefficient and remains in the face (10).

KUNO TAKAKI (JP)
NOGUCHI YOSHINORI (JP)
MAEDA KEIJI (JP)
KITAOKA SATOSHI (JP)
KAWASHIMA NAOKI (JP)

PCT/JP2006/326026

October 18, 2007

December 27, 2006

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TOWA CORP (JP)
JAPAN FINE CERAMICS CT (JP)
KUNO TAKAKI (JP)
NOGUCHI YOSHINORI (JP)
MAEDA KEIJI (JP)
KITAOKA SATOSHI (JP)
KAWASHIMA NAOKI (JP)

B32B9/00; B29C33/38; B32B18/00

JP2005274478A	2005-10-06
JPH04149074A	1992-05-22
JPH04364945A	1992-12-17
JPH0752120A	1995-02-28
JP2005274478A	2005-10-06
JP2006017335A	2006-01-19

S. SRINIVASAN; R. O. SCATTERGOOD: "R curve effects in solid particle erosion of ceramics", WEAR, vol. 142, 1991, pages 115

FUKAMI, Hisao et al. (Nakanoshima Central Tower 22nd Floor, 2-7,Nakanoshima 2-chome, Kita-k, Osaka-shi Osaka 05, JP)

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