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1. (WO2019043030) PROCESS FOR THE PREPARATION OF STYRENIC POLYMERS HAVING AN IMPROVED COLOR STABILITY
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Pub. No.: WO/2019/043030 International Application No.: PCT/EP2018/073181
Publication Date: 07.03.2019 International Filing Date: 29.08.2018
IPC:
C08F 6/06 (2006.01) ,C08F 2/42 (2006.01) ,C08F 297/04 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
6
Post-polymerisation treatments
06
Treatment of polymer solutions
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2
Processes of polymerisation
38
Polymerisation using regulators, e.g. chain terminating agents
42
using short-stopping agents
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
297
Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
02
using a catalyst of the anionic type
04
polymerising vinyl aromatic monomers and conjugated dienes
Applicants:
INEOS STYROLUTION GROUP GMBH [DE/DE]; Mainzer Landstraße 50 60325 Frankfurt am Main, DE
Inventors:
VERSWYVEL, Michiel; BE
NIESSNER, Norbert; DE
MOORS, Rainer; DE
KNOLL, Konrad; DE
VAN-DEN-BOSSCHE, Bart; BE
CAMERLINCK, Christof; BE
Agent:
JACOBI, Markus; DE
Priority Data:
17188827.431.08.2017EP
Title (EN) PROCESS FOR THE PREPARATION OF STYRENIC POLYMERS HAVING AN IMPROVED COLOR STABILITY
(FR) PROCÉDÉ DE PRÉPARATION DE POLYMÈRES STYRÉNIQUES À STABILITÉ DE COULEUR AMÉLIORÉE
Abstract:
(EN) Process for the preparation of styrenic polymers having an improved color stability by anionic polymerization wherein the obtained terminated polymer solution is fed to a dispersing device to which water is added, fed to a buffer vessel and then is impregnated in a static mixer by addition of further water, carbon dioxide and one or more stabilizers.
(FR) L'invention concerne un procédé de préparation de polymères styréniques à stabilité de couleur améliorée, par polymérisation anionique, caractérisé en ce que la solution polymère achevée obtenue est alimentée dans un dispositif de dispersion auquel de l'eau est ajoutée, alimentée dans un récipient tampon, puis est imprégnée dans un mélangeur statique par ajout d'eau supplémentaire, de dioxyde de carbone et d'au moins un stabilisant.
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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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: English (EN)
Filing Language: English (EN)