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1. (WO2009133959) METHOD FOR PRODUCING MOLD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/133959    International Application No.:    PCT/JP2009/058654
Publication Date: 05.11.2009 International Filing Date: 27.04.2009
IPC:
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
Title (EN) METHOD FOR PRODUCING MOLD
(FR) PROCÉDÉ DE PRODUCTION D'UN MOULE
(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.
(JA)球形度が0.95以上でありAl2O3を主成分とする球状鋳物砂の再生鋳物砂を、酸硬化性樹脂を含有する結合剤及び硬化剤(I)と共に用いて鋳型を製造するにあたり、硬化剤(I)及び再生鋳物砂を得るための鋳型の製造に用いる硬化剤(Ⅱ)の少なくとも一方として、有機スルホン酸を含有し、且つ該硬化剤中の硫酸含有量が5重量%以下、リン酸含有量が5重量%以下である硬化剤を用いる。 
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)