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1. (WO2019057627) POLYASPARTIC ACID ESTER COMPOSITIONS AND METHOD FOR PURIFICATION
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/057627 International Application No.: PCT/EP2018/074885
Publication Date: 28.03.2019 International Filing Date: 14.09.2018
IPC:
C07C 227/40 (2006.01) ,C07C 229/46 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
227
Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
38
Separation; Purification; Stabilisation; Use of additives
40
Separation; Purification
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
229
Compounds containing amino and carboxyl groups bound to the same carbon skeleton
46
having amino or carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton
Applicants:
COVESTRO DEUTSCHLAND AG [DE/DE]; Kaiser-Wilhelm-Allee 60 51373 Leverkusen, DE
Inventors:
GRESZTA-FRANZ, Dorota; DE
DRUMM, Christian; DE
MORBACH, Jan; DE
WITKOWSKI, Reiner; DE
Agent:
LEVPAT; Covestro AG, Gebäude 4825 51365 Leverkusen, DE
Priority Data:
17191793.319.09.2017EP
Title (DE) POLYASPARAGINSÄUREESTER-ZUSAMMENSETZUNGEN UND VERFAHREN ZUR REINIGUNG
(EN) POLYASPARTIC ACID ESTER COMPOSITIONS AND METHOD FOR PURIFICATION
(FR) COMPOSITIONS D’ESTERS D'ACIDE POLYASPARTIQUE ET PROCÉDÉ DE PURIFICATION
Abstract:
(DE) Die vorliegende Erfindung betrifft ein Verfahren zur Reinigung von Polyasparaginsäureester-Zusammensetzungen und die Bereitstellung von Polyasparaginsäureestern enthaltend 0.01 bis < 2 Gew.-Prozent Fumarsäuredialkylester.
(EN) The present invention relates to a method for purifying polyaspartic acid ester compositions and to the provision of polyaspartic acid ester compositions that contain 0.01 to < 2% by weight fumaric acid dialkyl esters.
(FR) La présente invention concerne un procédé de purification de compositions d'esters d'acide polyaspartique et la préparation d'esters d'acide polyaspartique contenant de 0,01 à < 2 % en poids de dialkylester d'acide fumarique.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)