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1. (WO2005121213) PROCESS FOR PRODUCING AROMATIC POLYCARBONATE OF HIGH QUALITY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/121213    International Application No.:    PCT/JP2005/010865
Publication Date: 22.12.2005 International Filing Date: 14.06.2005
IPC:
C08G 64/30 (2006.01)
Applicants: ASAHI KASEI CHEMICALS CORPORATION [JP/JP]; 1-2, Yuraku-cho 1-chome, Chiyoda-ku, Tokyo 1008440 (JP) (For All Designated States Except US).
YOKOTA, Koshiro [JP/JP]; (JP) (For US Only).
HACHIYA, Hiroshi [JP/JP]; (JP) (For US Only)
Inventors: YOKOTA, Koshiro; (JP).
HACHIYA, Hiroshi; (JP)
Agent: WATANABE, Junzo; 3rd Floor, Akasaka Habitation Building, 3-5, Akasaka 1-chome, Minato-ku, Tokyo 1070052 (JP)
Priority Data:
2004-176207 14.06.2004 JP
Title (EN) PROCESS FOR PRODUCING AROMATIC POLYCARBONATE OF HIGH QUALITY
(FR) PROCÉDÉ SERVANT À PRODUIRE UN POLYCARBONATE AROMATIQUE DE QUALITÉ ÉLEVÉE
(JA) 高品質芳香族ポリカーボネートの製造方法
Abstract: front page image
(EN)A process for producing an aromatic polycarbonate of high quality which comprises melt-polymerizing an aromatic dihydroxy compound with a diaryl carbonate, characterized in that the step of mixing the aromatic dihydroxy compound with the diaryl carbonate comprises dissolving the aromatic dihydroxy compound which is solid and/or liquid and a catalyst in the diaryl carbonate in a molten state in the presence of an inert gas.
(FR)Procédé servant à produire un polycarbonate aromatique de qualité élevée lequel comprend de polymériser à l'état fondu un composé dihydroxy aromatique avec un carbonate de diaryle, caractérisé en ce que l'étape consistant à mélanger le composé dihydroxy aromatique avec le carbonate de diaryle comprend de dissoudre le composé dihydroxy aromatique qui est solide et/ou liquide et un catalyseur dans le carbonate de diaryle à l’état fondu en présence d'un gaz inerte.
(JA) 芳香族ジヒドロキシ化合物とジアリールカーボネートを溶融状態で重合させて高品質芳香族ポリカーボネートを製造する方法において、芳香族ジヒドロキシ化合物とジアリールカーボネートを混合する工程が、固体及び/又は液体の芳香族ジヒドロキシ化合物と触媒を、不活性ガス存在下で、溶融状態のジアリールカーボネートに溶解させることを特徴とする高品質芳香族ポリカーボネートの製造方法。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, 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, HU, IE, IS, IT, LT, LU, MC, NL, 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)