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1. (WO2017207330) METHOD FOR THE PRODUCTION OF SUPERABSORBERS
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Pub. No.: WO/2017/207330 International Application No.: PCT/EP2017/062327
Publication Date: 07.12.2017 International Filing Date: 23.05.2017
IPC:
C08J 3/24 (2006.01) ,C08F 220/06 (2006.01) ,B01J 20/30 (2006.01) ,B01J 20/26 (2006.01) ,A61L 15/60 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3
Processes of treating or compounding macromolecular substances
24
Crosslinking, e.g. vulcanising, of macromolecules
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
220
Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof
02
Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
04
Acids; Metals salts or ammonium salts thereof
06
Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
30
Processes for preparing, regenerating or reactivating
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
22
comprising organic material
26
Synthetic macromolecular compounds
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15
Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16
Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42
Use of materials characterised by their function or physical properties
60
Liquid-swellable gel-forming materials, e.g. super-absorbents
Applicants:
BASF SE [DE/DE]; Carl-Bosch-Straße 38 67056 Ludwigshafen am Rhein, DE
Inventors:
GRÜNEWALD, Gerald; DE
FUNK, Ruediger; DE
WEISMANTEL, Matthias; DE
Agent:
BASF IP ASSOCIATION; BASF SE G-FLP - C006 67056 Ludwigshafen, DE
Priority Data:
16172267.331.05.2016EP
Title (EN) METHOD FOR THE PRODUCTION OF SUPERABSORBERS
(FR) PROCÉDÉ DE FABRICATION DE SUPERABSORBANTS
(DE) VERFAHREN ZUR HERSTELLUNG VON SUPERABSORBERN
Abstract:
(EN) The invention relates to a method for producing superabsorbers, comprising the steps of: polymerising, drying, crushing, pneumatic conveying, comminuting and classifying, where the gas temperature at the end of the pneumatic conveying step is between 50 and 95°C.
(FR) Procédé de fabrication de superabsorbants comprenant les étapes de polymérisation, dessiccation, broyage, transport pneumatique, fragmentation et classement, la température des gaz à la fin du transport pneumatique étant comprise entre 50 et 95°C.
(DE) Verfahren zur Herstellung von Superabsorbern, umfassend Polymerisation, Trocknung, Brechen, pneumatischer Förderung, Zerkleinerungund Klassierung, wobei die Gastemperatur am Ende der pneumatischen Förderung von 50 bis 95°C beträgt.
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, 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: German (DE)
Filing Language: German (DE)