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1. (WO2018099943) STABILIZED SULFONATED POLYSTYRENE SOLUTIONS
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Pub. No.: WO/2018/099943 International Application No.: PCT/EP2017/080763
Publication Date: 07.06.2018 International Filing Date: 29.11.2017
Chapter 2 Demand Filed: 11.09.2018
IPC:
C08K 5/13 (2006.01) ,C08L 25/18 (2006.01) ,C08F 8/36 (2006.01) ,C08F 112/08 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
5
Use of organic ingredients
04
Oxygen-containing compounds
13
Phenols; Phenolates
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
25
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
18
Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
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
8
Chemical modification by after-treatment
34
Introducing sulfur atoms or sulfur-containing groups
36
Sulfonation; Sulfation
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
112
Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
02
Monomers containing only one unsaturated aliphatic radical
04
containing one ring
06
Hydrocarbons
08
Styrene
Applicants:
AKZO NOBEL CHEMICALS INTERNATIONAL B.V. [NL/NL]; Velperweg 76 NL-6824 BM Arnhem, NL
Inventors:
NOWAK, John Douglas; US
RAHMAN, Mohammad Abdur; US
HOU, Xiaowen; US
BAND, Elliot Isaac; US
YU, Hua; US
Agent:
AKZO NOBEL CHEMICALS IP GROUP; Velperweg 76 6824 BM Arnhem, NL
Priority Data:
16206720.123.12.2016EP
62/429,22002.12.2016US
Title (EN) STABILIZED SULFONATED POLYSTYRENE SOLUTIONS
(FR) SOLUTIONS DE POLYSTYRÈNE SULFONÉ STABILISÉES
Abstract:
(EN) The present invention relates to a method of stabilizing an aqueous solution of polystyrene sulfonic acid and the compositions therein. This disclosure provides polymer stability in that there is minimal deterioration of the molecular weight of said polymers at or around 25 °C and the stabilizers of the disclosure reduce the need for low temperature refrigeration during transport and storage of polystyrene sulfonic acid.
(FR) La présente invention concerne un procédé de stabilisation d'une solution aqueuse d'acide polystyrène sulfonique et les compositions qu'il implique. La présente invention assure la stabilité des polymères dans le sens où il y a une détérioration minimale de la masse moléculaire desdits polymères à ou autour de 25 °C, et où les stabilisants de l'invention réduisent le besoin de réfrigération à basse température pendant le transport et le stockage de l'acide polystyrène sulfonique.
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)