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1. (WO2018224246) PROCESS FOR PREPARING PARTICLES OF AROMATIC POLYMERS, PARTICLES OBTAINABLE BY SAID PROCESS AND THEIR USES
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Pub. No.: WO/2018/224246 International Application No.: PCT/EP2018/062424
Publication Date: 13.12.2018 International Filing Date: 14.05.2018
IPC:
B29B 9/12 (2006.01) ,B29C 64/314 (2017.01) ,B29B 7/94 (2006.01) ,B29B 9/16 (2006.01) ,B29K 67/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9
Making granules
12
characterised by structure or composition
[IPC code unknown for B29C 64/314]
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
7
Mixing; Kneading
80
Component parts, details or accessories; Auxiliary operations
88
Adding charges
94
Liquid charges
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9
Making granules
16
Auxiliary treatment of granules
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
K
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
67
Use of polyesters as moulding material
Applicants:
SOLVAY SPECIALTY POLYMERS USA, LLC [US/US]; 4500 McGinnis Ferry Road ALPHARETTA, GA Georgia 30005-3914, US
Inventors:
JEOL, Stéphane; US
BRANHAM, Kelly D.; US
ROLLER, David; US
Agent:
BENVENUTI, Federica; BE
FIORUCCI, Hélène; BE
Priority Data:
17184269.301.08.2017EP
62/516,40407.06.2017US
Title (EN) PROCESS FOR PREPARING PARTICLES OF AROMATIC POLYMERS, PARTICLES OBTAINABLE BY SAID PROCESS AND THEIR USES
(FR) PROCÉDÉ POUR LA PRÉPARATION DE PARTICULES DE POLYMÈRES AROMATIQUES, PARTICULES POUVANT ÊTRE OBTENUES PAR LEDIT PROCÉDÉ ET LEURS UTILISATIONS
Abstract:
(EN) The invention relates to a process for preparing polymeric particles, based on the use of a polyester polymer (PE) comprising units from a dicarboxylic acid component and a diol component, wherein at least 2 mol. % of the diol component is a poly(alkylene glycol). The process comprises the melt-blending of the aromatic polymer (P) with the PE, the cooling the blend and the recovery of the particles by dissolution of the PE into water. The present invention relates to polymeric particles obtained therefrom and to the use of these particles in SLS 3D printing, coatings and toughening of thermoset resins.
(FR) L'invention concerne un procédé pour la préparation de particules polymères, basé sur l'utilisation d'un polymère de type polyester (PE) comprenant des motifs issus d'un composant acide dicarboxylique et d'un composant diol, au moins 2 % en moles du composant diol étant un poly(alkylèneglycol). Le procédé comprend le mélange à l'état fondu du polymère aromatique (P) avec le PE, le refroidissement du mélange et la récupération des particules par dissolution du PE dans de l'eau. La présente invention concerne également des particules polymères obtenues à partir de ce procédé et l'utilisation de ces particules en impression 3D par SLS, dans des revêtements et en renforcement de résines thermodurcissables.
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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)