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1. (WO2019043033) PROCESS FOR THE PREPARATION OF LOW HAZE AND COLOR STABLE STYRENIC POLYMERS
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Pub. No.: WO/2019/043033 International Application No.: PCT/EP2018/073185
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:
17188830.831.08.2017EP
Title (EN) PROCESS FOR THE PREPARATION OF LOW HAZE AND COLOR STABLE STYRENIC POLYMERS
(FR) PROCÉDÉ DE PRÉPARATION DE POLYMÈRES DE STYRÈNE À FAIBLE TROUBLE ET À COULEUR STABLE
Abstract:
(EN) Process for the preparation of very low haze and color stable styrenic polymers by anionic polymerization wherein the obtained terminated polymer solution is passed through a first filter, 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 par polymérisation anionique de polymères de styrène à très faible trouble et à couleur stable, la solution de polymère à terminaison obtenue étant passée à travers un premier filtre, introduite dans un dispositif de dispersion auquel de l'eau est ajoutée, introduite dans un récipient tampon, puis est imprégnée dans un mélangeur statique par ajout d'eau supplémentaire, de dioxyde de carbone et d'un ou plusieurs stabilisants.
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)