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1. (WO2018144139) METHODS FOR MAKING POLYETHYLENE POLYMERS
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Pub. No.: WO/2018/144139 International Application No.: PCT/US2017/065979
Publication Date: 09.08.2018 International Filing Date: 13.12.2017
IPC:
C08F 2/01 (2006.01) ,C08F 2/34 (2006.01) ,C08J 5/18 (2006.01) ,C08F 10/02 (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
2
Processes of polymerisation
01
characterised by special features of the polymerisation apparatus used
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
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5
Manufacture of articles or shaped materials containing macromolecular substances
18
Manufacture of films or sheets
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
10
Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
02
Ethene
Applicants:
EXXONMOBIL CHEMICAL PATENTS INC. [US/US]; 5200 Bayway Drive Baytown, TX 77520, US
Inventors:
LOCKLEAR, Brandon, C.; US
PENG, Haiqing; US
SAVATSKY, Bruce, J.; US
FARLEY, James, M.; US
ZILKER, Daniel; US
HAGERTY, Robert, O.; US
MUHLE, Michael, E.; US
HUSSEIN, David, F.; US
Agent:
ARECHEDERRA, Leandro, III; US
CROMWELL, Michael, A.; US
BELL, Catherine, L.; US
FAULKNER, Kevin, M; US
CHEN, Siwen; US
Priority Data:
62/454,12803.02.2017US
Title (EN) METHODS FOR MAKING POLYETHYLENE POLYMERS
(FR) PROCÉDÉS DE FABRICATION DE POLYMÈRES DE POLYÉTHYLÈNE
Abstract:
(EN) Methods for reducing gels and/or dome sheeting in gas phase polymerization processes and their resulting products are provided. The polymerization processes include polymerizing ethylene and one or more optional comonomers in a fluidized bed reactor in the presence of a metallocene catalyst, hydrogen, and at least one condensing agent.
(FR) L'invention concerne des procédés de réduction de gels et/ou de revêtement de dôme dans des procédés de polymérisation en phase gazeuse et leurs produits résultants. Les procédés de polymérisation comprennent la polymérisation d'éthylène et d'un ou de plusieurs comonomères facultatifs dans un réacteur à lit fluidisé en présence d'un catalyseur métallocène, d'hydrogène et d'au moins un agent de condensation.
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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)