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1. (WO2006088241) PROCESS FOR PRODUCING POLYLACTIC ACID
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/088241    International Application No.:    PCT/JP2006/303347
Publication Date: 24.08.2006 International Filing Date: 17.02.2006
IPC:
C08L 67/04 (2006.01), B05D 7/24 (2006.01), C08J 3/03 (2006.01), C08J 5/18 (2006.01), C09D 167/04 (2006.01), C08L 101/16 (2006.01)
Applicants: TEIJIN LIMITED [JP/JP]; 6-7, Minamihommachi 1-chome Chuo-ku, Osaka-shi, Osaka 5410054 (JP) (For All Designated States Except US).
MUSASHINO CHEMICAL LABORATORY, LTD. [JP/JP]; 1-1, Kyobashi 1-chome, Chuo-ku, Tokyo 1040031 (JP) (For All Designated States Except US).
MUTUAL CORPORATION [JP/JP]; Takeda Building 201, 1-2 Minami-Kyuhoujimachi 2-chome Chuo-ku, Osaka-shi, Osaka 5410058 (JP) (For All Designated States Except US).
KIMURA, Yoshiharu [JP/JP]; (JP)
Inventors: KIMURA, Yoshiharu; (JP)
Agent: OHSHIMA, Masataka; Ohshima Patent Office BN Gyoen Building 17-11, Shinjuku 1-chome Shinjuku-ku Tokyo 160-0022 (JP)
Priority Data:
2005-080382 20.02.2005 JP
Title (EN) PROCESS FOR PRODUCING POLYLACTIC ACID
(FR) PROCÉDÉ DE FABRICATION D’ACIDE POLYLACTIQUE
(JA) ポリ乳酸の製造方法
Abstract: front page image
(EN)It is intended to provide a process for producing a polylactic acid, or film thereof, excelling in heat resistance and strength without the use of any harmful solvent. It is also intended to provide an aqueous emulsion of polylactic acid, or coating agent containing the same, suitable for production of polylactic acid in which any harmful solvent is not contained. There is provided a process for producing polylactic acid, comprising: the step (1) of preparing both of an aqueous emulsion of poly-L-lactic acid and an aqueous emulsion of poly-D-lactic acid; the step (2) of mixing the aqueous emulsions together to thereby obtain a mixed emulsion; and the step (3) of drying the mixed emulsion.
(FR)La présente invention concerne un procédé de production d’acide polylactique, ou d’un film de celui-ci, qui présente d’excellentes propriétés de résistance thermique et de force sans utiliser un quelconque solvant nocif. L'invention concerne également une émulsion aqueuse d'acide polylactique, ou un agent de revêtement qui la comprend, appropriée pour la production d'acide polylactique et qui ne comprend aucun solvant nocif. L’invention concerne un procédé pour la production d’acide polylactique, qui comprend : l’étape (1) de préparation à la fois d’une émulsion aqueuse d’acide poly-L-lactique et d’une émulsion aqueuse d’acide poly-D-lactique ; l’étape (2) de mélange des émulsions aqueuses ensemble pour ainsi obtenir une émulsion mixte ; et l’étape (3) de séchage de l’émulsion mixte.
(JA)本発明の目的は、有害な溶剤を用いることなく耐熱性および強度に優れたポリ乳酸およびそのフィルムを製造する方法を提供することにある。本発明の他の目的は、有害な溶剤を含有せず、ポリ乳酸の製造に適した、ポリ乳酸の水性エマルジョンおよびそれを含有するコーティング剤を提供することにある。本発明は、ポリ-L-乳酸の水性エマルジョンとポリ-D-乳酸の水性エマルジョンとをそれぞれ調製するステップ(1)、両者を混合し混合エマルジョンとするステップ(2)、および混合エマルジョンを乾燥させるステップ(3)、を含むポリ乳酸の製造方法である。
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, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, 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, 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)