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1. (WO2018037017) METHOD FOR MANUFACTURING ARAMID PULP COMPRISING PVP
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Pub. No.: WO/2018/037017 International Application No.: PCT/EP2017/071156
Publication Date: 01.03.2018 International Filing Date: 22.08.2017
IPC:
D21H 13/26 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
13
Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
10
Organic non-cellulose fibres
20
from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
26
Polyamides; Polyimides
Applicants:
TEIJIN ARAMID B.V. [NL/NL]; Velperweg 76 6824 BM ARNHEM, NL
Inventors:
NIJHUIS, Walter; NL
TIECKEN, Jan-Cees; NL
DIEDERING, Frank; NL
Agent:
CPW GMBH; Kasinostraße 19 - 21 42103 Wuppertal, DE
Priority Data:
16185527.524.08.2016EP
Title (EN) METHOD FOR MANUFACTURING ARAMID PULP COMPRISING PVP
(FR) PROCÉDÉ DE FABRICATION DE PÂTE D'ARAMIDE COMPRENANT DU PVP
Abstract:
(EN) The invention pertains to a process for manufacturing an aramid pulp comprising polyvinyl pyrrolidone (PVP), the method comprising the steps of - combining para-aramid short-cut with PVP in an aqueous solution to form a mixture, - subjecting the mixture to a refining step to form a para-aramid pulp comprising PVP. It has been found that the process according to the invention makes it possible to obtain a PVP pulp with improved dewatering properties and energy consumption in combination with a high PVP retention.
(FR) L'invention concerne un procédé de fabrication d'une pâte d'aramide comprenant de la polyvinylpyrrolidone (PVP), le procédé comprenant les étapes consistant à combiner du para-aramide court-coupé avec du PVP dans une solution aqueuse pour former un mélange, à soumettre le mélange à une étape de raffinage pour former une pâte de para-aramide comprenant du PVP. Il a été découvert que le procédé selon l'invention permet d'obtenir une pâte de PVP ayant des propriétés de déshydratation et une consommation d'énergie améliorées en association avec une rétention de PVP élevée.
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)