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1. (WO2019025210) CLASSIFICATION PROCESS FOR SUPERABSORBENT POLYMER PARTICLES
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Pub. No.: WO/2019/025210 International Application No.: PCT/EP2018/069770
Publication Date: 07.02.2019 International Filing Date: 20.07.2018
IPC:
B07B 13/16 (2006.01) ,C08J 3/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
07
SEPARATING SOLIDS FROM SOLIDS; SORTING
B
SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
13
Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
14
Details or accessories
16
Feed or discharge arrangements
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
Applicants:
BASF SE [DE/DE]; Carl-Bosch-Strasse 38 67056 Ludwigshafen am Rhein, DE
Inventors:
FUNK, Ruediger; DE
WEISMANTEL, Matthias; DE
PETERSON, Monte; US
HAMILTON, Patrick; US
DE KAEY, Ronny; BE
POSSEMIERS, Karl; BE
Agent:
BASF IP ASSOCIATION; BASF SE G-FLP - C006 67056 Ludwigshafen, DE
Priority Data:
17183912.931.07.2017EP
Title (EN) CLASSIFICATION PROCESS FOR SUPERABSORBENT POLYMER PARTICLES
(FR) PROCÉDÉ DE PRODUCTION DE PARTICULES DE POLYMÈRE SUPERABSORBANT
Abstract:
(EN) The invention relates to a classification process for superabsorbent polymer particles, comprising classifying the water-absorbent polymer particles in a screen machine under reduced pressure wherein the pressure above the uppermost sieve is from 0 to 4.0mbar per sieve higher than below the undermost sieve.
(FR) L'invention concerne un procédé de classification de particules de polymère superabsorbant, comprenant la classification des particules de polymère absorbant l'eau dans une machine à tamis sous une pression réduite, la pression au-dessus du tamis supérieur étant de 0 à 4,0 mbar par tamis supérieure à celle au-dessous du tamis inférieur.
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)