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1. (WO2019027525) HIGH PRESSURE POLYMERISATION PROCESS FOR PRODUCING ETHYLENE COPOLYMERS
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/027525 International Application No.: PCT/US2018/031487
Publication Date: 07.02.2019 International Filing Date: 08.05.2018
IPC:
C08F 210/02 (2006.01) ,C08F 218/08 (2006.01) ,C08F 2/34 (2006.01) ,C08F 2/02 (2006.01)
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
210
Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
02
Ethene
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
218
Copolymers having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid
02
Esters of monocarboxylic acids
04
Vinyl esters
08
Vinyl acetate
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
2
Processes of polymerisation
34
Polymerisation in gaseous state
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
2
Processes of polymerisation
02
Polymerisation in bulk
Applicants:
EXXONMOBIL CHEMICAL PATENTS INC. [US/US]; 5200 Bayway Drive Baytown, TX 77520, US
Inventors:
RAJESH RAJA, Puthenkovilakom; US
DAILY, Jeffrey, D.; US
GHOSH, Amit, Kumar; BE
CLAERBOUT, Anna; BE
VAN DEN BOSSCHE, Linda, M.; BE
CLYMANS, Paul, J.; BE
Agent:
ARECHEDERRA, Leandro III; US
BELL, Catherine, L.; US
FAULKNER, Kevin, M.; US
CHEN, Siwen; US
CROMWELL, Michael, A.; US
Priority Data:
62/539,19731.07.2017US
Title (EN) HIGH PRESSURE POLYMERISATION PROCESS FOR PRODUCING ETHYLENE COPOLYMERS
(FR) PROCÉDÉ DE POLYMÉRISATION HAUTE PRESSION POUR LA PRODUCTION DE COPOLYMÈRES D'ÉTHYLÈNE
Abstract:
(EN) A process for producing an ethylene copolymer, the process including: (a) contacting ethylene with at least one polar comonomer in the presence of at least one modifier and at least one free radical initiator in a tubular reactor under polymerization conditions including a pressure of from 225 to 270MPa; (b) injecting the at least one free radical initiator into the reactor at a plurality of reaction zones spaced along the length of the reactor, wherein each reaction zone comprises an inlet and an outlet; (c) maintaining the temperature at the inlet of each reaction zone at 150°C or less, and the temperature at the outlet of each reaction zone is at least 177°C; (d) controlling the modifier flow at a rate of from 0.02 to 0.986 wt% of the copolymer; and (e) recovering the ethylene copolymer from the tubular reactor, is provided.
(FR) L'invention concerne un procédé de production d'un copolymère d'éthylène, le procédé comprenant : (a) la mise en contact de l'éthylène avec au moins un comonomère polaire en présence d'au moins un modificateur et d'au moins un initiateur de radicaux libres dans un réacteur tubulaire dans des conditions de polymérisation comprenant une pression de 225 à 270 MPa ; (b) l'injection du ou des initiateurs de radicaux libres dans le réacteur au niveau d'une pluralité de zones de réaction espacées sur la longueur du réacteur, chaque zone de réaction comprenant une entrée et une sortie ; (c) le maintien de la température à l'entrée de chaque zone de réaction à 150 °C ou moins, la température à la sortie de chaque zone de réaction étant d'au moins 177 °C ; (d) la régulation de écoulement du modificateur à un débit de 0,02 à 0,986 % en poids du copolymère ; et (e) la récupération du copolymère d'éthylène dans le réacteur tubulaire.
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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)