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公开(公告)号：US20210130568A1
公开(公告)日：2021-05-06
申请号：US16474849
申请日：2017-12-12
发明人： Diego Mauricio Castaneda Zuniga , Jerome Vachon , Jan Nicolaas Eddy Duchateau , Peter Neuteboom , Zeljko Knez
摘要： The present invention relates to a process for recycling polyolefin, comprising the steps of: 1) feeding a solid post-consumer polyolefin composition comprising polyolefin and contaminants and a flow of an extraction fluid to an extractor having a pressure of 100-1000 bar and a temperature of 20-80° C. to obtain a solid extracted composition, 2) melting the solid extracted composition to obtain a melted composition, 3) providing particles from the melted composition by: 3a) mixing a flow of a supercritical fluid in the melted composition in a pressure vessel to obtain a solution saturated with the supercritical fluid and 3b) passing the solution from the pressure vessel through a throttling device to a spraying tower to expand the solution to obtain polyolefin particles in the spraying tower.
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公开(公告)号：US10858462B2
公开(公告)日：2020-12-08
申请号：US16062184
申请日：2016-12-07
发明人： Diego Mauricio Castaneda Zuniga , Carolina de los Angeles Toloza Porras , Peter Neuteboom , Jan Nicolaas Eddy Duchateau , Jerome Vachon , Franciscus Petrus Hermanus Schreurs
IPC分类号： C08F220/20 , C08F210/02 , C08F210/14 , C08J5/18 , C08F2/01 , C08F216/14 , C08F220/26 , C08K5/14 , C08K5/23 , C08F220/28
摘要： The present invention relates to an ethylene copolymer comprising: (iv) ≥78.0 and ≤99.9 mol % of recurring units derived from ethylene; (v) ≥0.10 and ≤20.0 mol % of a recurring units derived from a comonomer A according to formula (I) wherein R1 is a moiety comprising 1-30 carbon atoms; R2 is selected from —H or —CH3; R3 is selected from —O—, —(CO)—(NH)— or —(CO)—O—; n=0 or 1; and m≥1 and ≤10; and (vi) ≥0.01 and ≤2.00 mol % of a recurring units derived from a comonomer B according to formula (II) wherein R1 is a moiety comprising 1-30 carbon atoms; each R2 may individually be selected from —H or —CH3; each of R3 is individually selected from —O—, —(CO)—(NH)— or —(CO)—O—; n=0 or 1; p=0 or 1; and m≥1 and ≤10; the mol % of each of (i), (ii) and (iii) being related to the sum of the mol % of (i), (ii) and (iii), the sum of the mol % of (i), (ii) and (iii) adding up to 100 mol %. Such ethylene copolymers have a reduced peak melting temperature and reduced enthalpy of fusion, indicating that these ethylene copolymers have a reduced degree of crystallinity and improved clarity and contact angle, combined with a desired melt mass-flow rate.
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公开(公告)号：US10696763B2
公开(公告)日：2020-06-30
申请号：US15755123
申请日：2016-07-14
发明人： Diego Mauricio Castaneda Zuniga , Peter Neuteboom , Jan Nicolaas Eddy Duchateau , Carolina de los Angeles Toloza Porras , Franciscus Petrus Hermanus Schreurs , Jerome Vachon
IPC分类号： C08F210/02 , C08F2/02
摘要： The present invention relates to a process for the production of ethylene polymers in a tubular reactor comprising reacting in said tubular reactor a feed composition comprising ethylene and one or more composition comprising one or more cyclic olefin wherein the cyclic olefin is a compound having the structure of Formula (I): wherein R may be a moiety comprising ≥1 and ≤10 carbon atoms; wherein R1 and R2 may each individually be hydrogen or a moiety comprising ≥1 and ≤5 carbon atoms, R1 and R2 may be the same or different; wherein ⋅ the tubular reactor may be operated at a pressure of ≥200 and ≤280 MPa; ⋅ the average reaction peak temperature may be ≥220° C. and ≤300° C.; ⋅ the composition comprising one or more cyclic olefin may be fed to the reactor in one or more feed inlet of said tubular reactor; and ⋅ said cyclic olefin may be fed to the tubular reactor in quantities of ≤1.0 mol %, with regards to the total feed composition. Such process allows for the production of ethylene polymers having a high density and a high purity.
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公开(公告)号：US10150826B2
公开(公告)日：2018-12-11
申请号：US15327526
申请日：2015-07-23
发明人： Jan Nicolaas Eddy Duchateau , Peter Neuteboom , Diego Mauricio Castaneda Zuniga , Markus Busch , Sebastian Bruno Fries
IPC分类号： C08F210/02 , C08J5/18 , C08F2/38 , C08F238/00 , C08F4/34
摘要： A process for preparing an ethylene copolymer in the presence of free-radical polymerization initiator at pressures from 150 MPa to 350 MPa and temperatures from 100° C. to 350° C., by copolymerizing ethylene and a comonomer having a C≡C bond and optionally further comonomers, wherein the comonomer having the C≡C bond is represented by formula wherein R1 is hydrogen or methyl; X1 is —CO—O— or —CO—NH—; R2 is —CH2—O—, —O—CO—, —Si(CH3)2—, —Si(CH3)2—O— or —CR5R6— wherein R5 and R6 are independently selected from hydrogen, methyl, ethyl and hydroxyl; n is an integer from 1 to 32 and R2 is same or different from each other when n is 2 to 32; and R3 is —C≡C— and R4 is hydrogen, C1-C10 linear or branched alkyl, C1-C10 linear or branched hydroxyalkyl or phenyl, or the unit R3-R4 stands for wherein X2 is F, Cl, Br or I.
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公开(公告)号：US20170198064A1
公开(公告)日：2017-07-13
申请号：US15313572
申请日：2015-04-29
IPC分类号： C08F6/00
CPC分类号： C08F6/003 , C08F6/005 , C08F6/10 , C08F6/12 , C08J3/14 , C08J11/08 , C08J2323/06 , Y02P20/544 , Y02W30/701
摘要： A process for increasing purity of a low density polyethylene (LDPE) composition, comprising the steps of: a) providing a melted composition comprising LDPE having Mn of at least 5.0 kg/mol according to size exclusion chromatography, Mw of at least 50 kg/mol according to size exclusion chromatography, a density of 915 to 935 kg/m3 according to ISO1183 and a melt flow rate of 0.10 g/10 min to 80 g/10 min according to ISO1133:2011 measured at 190° C. and 2.16 kg, and b) providing particles from the melted composition by: b1) mixing a supercritical fluid in the melted composition to obtain a solution saturated with the supercritical fluid and b2) expanding the solution through an opening to obtain the particles.
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公开(公告)号：US11198746B2
公开(公告)日：2021-12-14
申请号：US16766018
申请日：2018-11-19
发明人： Peter Neuteboom , Diego Mauricio Castaneda Zuniga , Jan Nicolaas Eddy Duchateau , Franciscus Petrus Hermanus Schreurs , Jerome Vachon , Carolina De Los Angeles Toloza Porras
IPC分类号： C08F210/02 , C08F210/16 , C08F210/14
摘要： The present invention relates to an ethylene copolymer obtained by radical polymerisation through a high-pressure process comprising (i) ≥78.0 and ≤99.99 mole % of recurring units derived from ethylene; (it) ≥0.01 and ≤22.0 mole % of recurring units derived from comonomer A according to Formula (I), wherein R1 is composed of a saturated aliphatic moiety comprising 5-40 carbon atoms or R1 is composed of a saturated aliphatic moiety and consists of hydrogen atoms and 5-40 carbon atoms; R2 is selected from —H or —CH3; R3 is selected from —O—, —(CO)—(NH)— or —(CO)—O—; n=0 or 1 The ethylene copolymers have a reduced peak melting temperature and reduced enthalpy of fusion, indicating that these ethylene copolymers have a reduced degree of crystallinity and improved clarity, combined with a desired melt mass-flow rate.
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公开(公告)号：US10829572B2
公开(公告)日：2020-11-10
申请号：US16461444
申请日：2017-11-23
发明人： Franciscus Petrus Hermanus Schreurs , Jan Nicolaas Eddy Duchateau , Ana Luisa Vaz , Maria Soliman , Priya Garg
IPC分类号： C08F10/02
摘要： The present invention relates to a use or process for the reduction of gels in polyethylene materials comprising at least one ethylene copolymer with a density ≥850 kg/m3 and
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公开(公告)号：US20190002646A1
公开(公告)日：2019-01-03
申请号：US15743865
申请日：2016-06-30
摘要： The present invention relates to a process for producing polyolefin particles from a polyolefin composition, comprising the steps of: a) providing a melted composition of a polyolefin and b) providing particles from the melted composition by: b1) mixing a first flow of a supercritical fluid in the melted composition in a pressure vessel to obtain a solution saturated with the supercritical fluid and b2) passing the solution from the pressure vessel through a throttling device to a spraying tower to expand the solution to obtain the polyolefin particles in the spraying tower, wherein a second flow of a supercritical fluid is injected in the throttling device, wherein the supercritical fluid is a supercritical fluid of a substance selected from the group consisting of CO2, NH3, H2O, N2O, CH4, ethane, propane, propylene, n-butane, i-butane, n-pentane, benzene, methanol, ethanol, isopropanol, isobutanol, chlorotrifluoromethane, monofluoromethane, 1,1,1,2-Tetrafluoroethane, toluene, pyridine, cyclohexane, cyclohexanol, o-xylene, dimethyl ether and SF6 and combinations thereof.
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公开(公告)号：US20180223018A1
公开(公告)日：2018-08-09
申请号：US15738968
申请日：2016-06-06
发明人： Peter Neuteboom , Franciscus Petrus Hermanus Schreurs , Carolina de los Angeles Toloza Porras , Diego Mauricio Castaneda Zuniga , Jan Nicolaas Eddy Duchateau
IPC分类号： C08F210/02
CPC分类号： C08F210/02 , C08F4/34 , C08F232/04 , C08F2500/17 , C08F2500/04 , C08F2500/25 , C08F2500/26 , C08F2500/07
摘要： The present invention relates to an ethylene polymer comprising moieties according to formula (I): wherein R is a moiety comprising ≥1 and ≤10 carbon atoms; wherein the ethylene polymer has a molecular weight distribution of ≥3.0 and ≤13.0; the ethylene polymer has a melting temperature of ≥115° C.; the ethylene polymer has a density ≥935 and ≤960 kg/m3; the ethylene polymer is essentially free from chromium, hafnium, zirconium and tetrahydrofuran; for the fraction of the ethylene polymer having a molecular weight ≥100 kg/mol, the intrinsic viscosity of the ethylene polymer is related to the molecular weight according to the inequality: log I. V.
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公开(公告)号：US11421064B2
公开(公告)日：2022-08-23
申请号：US17051234
申请日：2019-04-29
IPC分类号： C08F10/02 , C08F255/02 , C08F8/46 , B29C48/00 , C08F222/06 , C08K5/14 , C08L23/06
摘要： The present invention relates to a process for the production of modified polyethylene comprising adding a free radical initiator composition and a polar monomer in extrusion of polyethylene materials with a melt mass flow rate (MFR) as determined in accordance with ISO 1133-1 (2011) at 190° C. under a load of 2.16 kg of between 0.5 and 75 g/10 min characterized in that the free radical initiator composition is added in quantities between 0.01 wt % to 5 wt % compared to the total weight of the polyethylene material wherein the extrusion is performed at a temperature between 230° C. and 350° C. Such process allows for the production of modified polyethylenes, such as having an amount of grafted polar monomer, such as maleic anhydride, of >3 wt %, with low amount of free, unreacted monomer whilst maintaining or not significantly modifying melt properties such as melt mass flow rate.
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