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1. (WO2017064292) METHOD FOR DECOLORIZING PLASTIC POLYOLEFIN MATERIAL
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Pub. No.: WO/2017/064292 International Application No.: PCT/EP2016/074790
Publication Date: 20.04.2017 International Filing Date: 14.10.2016
IPC:
C08J 11/04 (2006.01) ,C08J 11/08 (2006.01) ,B29B 17/02 (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
11
Recovery or working-up of waste materials
04
of polymers
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
11
Recovery or working-up of waste materials
04
of polymers
06
without chemical reactions
08
using selective solvents for polymer components
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
17
Recovery of plastics or other constituents of waste material containing plastics
02
Separating plastics from other materials
Applicants:
SUEZ GROUPE [FR/FR]; Tour CB21 - 16, Place de l'Iris 92040 Paris La Défense Cedex, FR
Inventors:
WAUTERS, Frank; BE
DE BRUYNE, Bram; BE
Agent:
MOUGET-GONIOT, Claire; FR
Priority Data:
15190216.016.10.2015EP
Title (EN) METHOD FOR DECOLORIZING PLASTIC POLYOLEFIN MATERIAL
(FR) PROCÉDÉ DE DÉCOLORATION D'UNE MATIÈRE PLASTIQUE POLYOLÉFINIQUE
Abstract:
(EN) A method for decolorizing a polyolefin plastic material comprising the steps of: a) providing said plastic polyolefin material in solid form comprising at least one pigment or at least one filler or a mixture thereof infused into said material, said at least one pigment or filler or mixture thereof imparting color to said polyolefin plastic material; b) dissolving said polyolefin plastic material in an isoparaffinic solvent, c) adding one or more additives selected from bleaching agents and d) submitting the solution obtained in step c) to a hot liquid-solid separation step.
(FR) Cette invention concerne un procédé de décoloration d'une matière plastique polyoléfinique comprenant les étapes suivantes : a) utilisation de ladite matière plastique polyoléfinique sous forme solide comprenant au moins un pigment ou au moins une charge ou un mélange de ceux-ci injecté dans ladite matière, ledit au moins pigment ou charge ou mélange de ceux-ci conférant une couleur à ladite matière plastique polyoléfinique ; b) dissolution de ladite matière plastique polyoléfinique dans un solvant isoparaffinique, c) ajout d'un ou de plusieurs additifs choisis parmi des agents de blanchiment et d) soumission de la solution obtenue à l'étape c) à une étape de séparation solide-liquide à chaud.
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, 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)