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Machine translation
1. (WO2007086563) PROCESS FOR PRODUCING ALIPHATIC POLYESTER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/086563    International Application No.:    PCT/JP2007/051401
Publication Date: 02.08.2007 International Filing Date: 29.01.2007
IPC:
C08G 63/80 (2006.01), C08G 63/08 (2006.01), C08L 101/16 (2006.01)
Applicants: KUREHA CORPORATION [JP/JP]; 3-3-2, Nihonbashi-Hamacho, Chuo-Ku, Tokyo 1038552 (JP) (For All Designated States Except US).
SATO, Hiroyuki; (For US Only).
SUZUKI, Yoshinori; (For US Only).
HOSHI, Tomohiro; (For US Only).
MAEDA, Fumio; (For US Only)
Inventors: SATO, Hiroyuki; .
SUZUKI, Yoshinori; .
HOSHI, Tomohiro; .
MAEDA, Fumio;
Agent: ENDO, Yukio; TOKYO INTERNATIONAL PATENT FIRM 2nd Floor, Miyata Building 17-16, Nishi-Shimbashi 1-Chome Minato-ku, Tokyo 105-0003 (JP)
Priority Data:
2006-020404 30.01.2006 JP
Title (EN) PROCESS FOR PRODUCING ALIPHATIC POLYESTER
(FR) PROCÉDÉ DE PRODUCTION D'UN POLYESTER ALIPHATIQUE
(JA) 脂肪族ポリエステルの製造方法
Abstract: front page image
(EN)A process for producing an aliphatic polyester by the ring-opening polymerization of a cyclic ester, characterized by comprising continuously introducing a melt of a partial polymer into a twin-screw mixer to continuously obtain a partial polymer in a solid pulverized state, subjecting the resultant polymer to solid-phase polymerization, subsequently melt-kneading the resultant polymer together with a heat stabilizer, and pelletizing the mixture. Thus, an aliphatic polyester having a high molecular weight and reduced in coloration is efficiently produced.
(FR)La présente invention concerne un procédé de production d'un polyester aliphatique par polymérisation par ouverture de cycle d'un ester cyclique, caractérisé en ce qu'il comprend les étapes consistant à introduire en continu un polymère partiel sous forme fondue dans un mélangeur à double vis pour produire en continu un polymère partiel sous forme solide pulvérisée, soumettre le polymère résultant à une polymérisation en phase solide, puis malaxer à l'état fondu le polymère résultant avec un stabilisateur thermique, et granuler le mélange. Ainsi, il est possible de produire de façon efficace un polyester aliphatique de masse moléculaire élevée et de coloration réduite.
(JA) 環状エステルを開環重合して脂肪族ポリエステルを製造するに際して、部分重合体の溶融物を二軸撹拌装置中に連続的に導入して固体粉砕状態の部分重合体を連続的に得、これを更に固相重合に付した後、生成した重合体を熱安定剤とともに溶融混練してペレット化することを特徴とする脂肪族ポリエステルの製造方法。これにより、高分子量で着色の少ない脂肪族ポリエステルを効率的に製造する。
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, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, 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, 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, HU, IE, IS, IT, LT, LU, LV, 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)