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Pub. No.:    WO/2009/133959    International Application No.:    PCT/JP2009/058654
Publication Date: 05.11.2009 International Filing Date: 27.04.2009
B22C 1/10 (2006.01), B22C 1/00 (2006.01), B22C 1/22 (2006.01), B22C 9/02 (2006.01)
Applicants: KAO CORPORATION [JP/JP]; 14-10, Nihonbashi-Kayabacho 1-chome, Chuo-ku, Tokyo 1038210 (JP) (For All Designated States Except US).
INA, Yoshimitsu [JP/JP]; (JP) (For US Only).
NAKAI, Shigeo [JP/JP]; (JP) (For US Only).
MATSUO, Toshiki [JP/JP]; (JP) (For US Only)
Inventors: INA, Yoshimitsu; (JP).
NAKAI, Shigeo; (JP).
MATSUO, Toshiki; (JP)
Agent: FURUYA, Satoshi; (JP)
Priority Data:
2008-118940 30.04.2008 JP
(JA) 鋳型の製造方法
Abstract: front page image
(EN)When a mold is produced by using reclaimed molding sand of spherical molding sand, which is mainly composed of Al2O3 and has a sphericity of not less than 0.95, together with a binder containing an acid-curable resin and a curing agent (I), a curing agent containing an organic sulfonic acid and having a sulfuric acid content of not more than 5% by weight and a phosphoric acid content of not more than 5% by weight is used as at least one of the curing agent (I) and a curing agent (II) which is used for producing a mold for obtaining the reclaimed molding sand.
(FR)Lorsque l'on produit un moule en utilisant du sable de moulage recyclé constitué de sable sphérique de moulage, principalement d'Al2O3 d'une sphéricité non inférieure à 0,95, en même temps qu'un liant qui contient une résine durcissable par acide et un agent de durcissement (I), on utilise un agent de durcissement qui contient un acide sulfonique organique et dont la teneur en acide sulfurique n'est pas supérieure à 5 % en poids et dont la teneur en acide phosphorique n'est pas supérieure à 5 % en poids comme agent de durcissement (I) et/ou agent de durcissement (II) utilisés pour produire un moule en vue d'obtenir du sable de moulage recyclé.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)