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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2254. Отображено 100.
05-01-2012 дата публикации

Solid catalyst component and catalyst for polymerization of olefins, and process for production of olefin polymers using same

Номер: US20120004378A1
Автор: Motoki Hosaka
Принадлежит: Toho Titanium Co Ltd

A solid catalyst component for olefin polymerization is produced by causing (a) a solid component that includes magnesium, titanium, a halogen, and an electron donor, (b) an aminosilane compound shown by the following general formula (1), and (c) at least one organosilicon compound selected from an organosilicon compound shown by the following general formula (2-A) and an organosilicon compound shown by the following general formula (2-B) to come in contact with each other. A polymer having high stereoregularity is produced in high yield while achieving a high melt flow rate due to hydrogen by polymerizing an olefin in the presence of a catalyst that includes the solid catalyst component. R 1 n Si(NR 2 R 3 ) 4-n   (1) [CH 2 ═CH—(CH 2 ) 1 ] q SiR 4 4-q   (2-A) R 5 Si(OR 6 ) 4-s   (2-B)

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31-05-2012 дата публикации

Process to induce polymerization of an organic electronically conductive polymer

Номер: US20120136136A1

A process to induce polymerization of an organic electronically conductive polymer in the presence of a partially delithiated alkali metal phosphate which acts as the polymerization initiator.

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21-03-2013 дата публикации

OLEFIN POLYMERIZATION CATALYST AND PREPARATION METHOD AND USE THEREOF

Номер: US20130072647A1
Принадлежит: PETROCHINA COMPANY LIMITED

An olefin polymerization catalyst and preparation method and use thereof are provided. The components of the catalyst comprise an active magnesium halide, a titanium compound containing at least one Ti-halide bond loaded on the active magnesium halide, and an internal electron donor selected from one or more silicon esters compounds having formula (I). The method for preparing the catalyst components is that: adding spherical magnesium chloride alcoholate particles and the electron donor into the solution of titanium compound in sequence, and processing with the titanium compound for one or more times to obtain the catalyst. The catalyst system used for the olefin polymerization comprises the catalyst components, a cocatalyst and an external electron donor. The catalyst has high activity for the propylene polymerization, and the activity is 4399 gPP/gTi·h(50° C., 1 h, slurry polymerization at atmospheric pressure), and the isotacticity of the polymer is 98%. 2. The olefin polymerization catalyst according to claim 1 , wherein the estersil compound is selected from diacyl-substituted silane claim 1 , triacyl-substituted silane or tetraacyl silane.3. The olefin polymerization catalyst according to claim 1 , wherein the estersil compound is selected from:diacetyl-(2,3-epoxy-propoxy)-methyl-silane;diacetyl-(2,3-epoxy-propoxy)-ethenyl-silane;triacetyl-(furan-2-carbonyl)-silane;triacetyl-(thiophene-2-carbonyl)-silane;dimethyl-di-(pyridine-2-acetyl)-silane;methyl-chloro-di-(pyridine-2-acetyl)-silane;dichloro-di-(pyridine-2-acetyl)-silane;tetraacetylsilane;diacetyl-dibutyl-silane;diacetyl-tert-butyloxy-n-butyloxy-silane;diacetyl-dimethyl-silane;diacetyl-methyl-ethenyl-silane;diacetyl-methyl-propenyl-silane;dimethyl-di-propanoyl-silane;diacetyl-diethyl-silane;diacetyl-ethyl-ethenyl-silane;diethyl-di-propanoyl- silane;di-isobutyryl-dimethyl-silane;di-chloracetyl-dimethyl-silane;triacetyl-methyl-silane;diacetyl-(2-chloro-ethyl)-methoxy-silane;diacetyl-butoxy-methyl-silane; ...

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02-05-2013 дата публикации

Propylene random copolymer, method for its preparation, and compositions and articles containing the same

Номер: US20130108814A1

The present invention relates to a propylene-butene-1 random copolymer which has a butene-1 content of 1-6 mol % and a relative dispersity of butene-1, as determined according to NMR method, of greater than 98.5%. The propylene-butene-1 random copolymer of the present invention has a high relative dispersity of butene-1, as well as better transparency and heat resistance, so that it is more suitable for packaging food that may be edible after heating. Moreover, the copolymer has a lower xylene solubles content at room temperature. In addition, the present invention further relates to a method for preparing the copolymer and to a composition and an article comprising the copolymer.

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04-07-2013 дата публикации

Catalyst compositions for the polymerization of olefins

Номер: US20130172497A1
Принадлежит: Chevron Phillips Chemical Co LP

Catalyst compositions containing N,N-bis[2-hydroxidebenzyl]amine transition metal compounds are disclosed. Methods for making these transition metal compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.

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01-08-2013 дата публикации

METHOD FOR FEEDING AN ANTISTATIC COMPOUND TO A POLYMERIZATION REACTOR

Номер: US20130197169A1
Принадлежит: Baseball Polyolefine GmbH

A method for feeding an antistatic compound to a polymerization reactor, the method comprising the steps of: a) dispersing, under mixing conditions, a catalyst powder and an antistatic compound in a liquid medium, so as to form a suspension of the catalyst powder and of the antistatic compound in the liquid medium; b) transferring the obtained suspension to a polymerization reactor. 1. A method for feeding an antistatic compound to a polymerization reactor , the method comprising the steps of:a) dispersing, under mixing conditions, a catalyst powder and an antistatic compound in a liquid medium, so as to form a suspension of the catalyst powder and of the antistatic compound in the liquid medium;b) transferring the obtained suspension to a polymerization reactor.2. The method according to claim 1 , wherein the antistatic compound is incorporated in the catalyst suspension as a solid component.32. The method according to any of - claims 1 , wherein step a) comprises the sequence of:feeding said liquid medium at a temperature ranging from 5° C. to 40° C. to a dispersion tank equipped with a stirring device;loading in whatever order said catalyst powder and said antistatic compound to said dispersion tank, while maintaining the dispersion tank under stirring conditions;subjecting the suspension to mixing conditions for a time comprised between 30 and 150 minutes.42. The method according to any of - claims 1 , wherein step a) comprises the sequence of:feeding said liquid medium at a temperature ranging from 40° C. to 90° C. to a dispersion tank equipped with a stirring device;loading the catalyst powder into said dispersion tank, while maintaining the temperature in a range from 40° C. to 90° C.,mixing the suspension of catalyst in said liquid medium for a time between 30 and 150 minutes,cooling the catalyst suspension at a temperature ranging from 5 to 40° C.,adding said antistatic compound in the form of powder or microbeads to the catalyst suspension, while ...

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01-08-2013 дата публикации

METHOD FOR FEEDING AN ANTISTATIC COMPOUND TO A POLYMERIZATION REACTOR

Номер: US20130197171A1
Принадлежит: BASELL POLYOLEFINE GMBH

A method for feeding an antistatic compound to a polymerization reactor comprising the steps of: a) dispersing, under mixing conditions, a catalyst powder and an antistatic compound in an oil, so as to form a suspension of catalyst powder and antistatic compound in said oil; b) successively adding, under mixing conditions, a molten thickening agent to said suspension from step a), while maintaining said suspension at a temperature such that said thickening agent solidifies on contact with said suspension; c) transferring the product obtained from b) to a polymerization reactor. 1. A method for feeding an antistatic compound to a polymerization reactor , the method comprising the steps of:a) dispersing, under mixing conditions, a catalyst powder and an antistatic compound in an oil, so as to form a suspension of the catalyst powder and of the antistatic compound in the oil;b) successively adding, under mixing conditions, a molten thickening agent to the suspension obtained from step a), while maintaining said suspension at a temperature at which the thickening agent solidifies on contact with the suspension, thereby obtaining a catalytic paste;c) transferring the obtained catalytic paste, as such or separated into its components, to a polymerization reactor.2. The method according to claim 1 , wherein the antistatic compound is incorporated in the suspension of step a) as a solid component.3. The method according to claim 1 , wherein step a) comprises the sequence of:feeding an oil at a temperature ranging from 5 C.° to 40° C. to a dispersion tank equipped with a stirring device;loading in whatever order said catalyst and said antistatic to said dispersion tank, while maintaining the dispersion tank under stirring conditions;mixing the suspension for a time comprised between 30 and 150 minutes.4. The method according to claim 1 , wherein step a) comprises the sequence of:feeding an oil at a temperature ranging from 40 C.° to 90° C. to a dispersion tank equipped with ...

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01-08-2013 дата публикации

MAGNESIUM DICHLORIDE-ALCOHOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM

Номер: US20130197172A1
Принадлежит: BASELL POLIOLEFINE ITALIA S.R.L.

Adducts comprising a MgCl, an alcohol ROH in which R is a Cl—ClO hydrocarbon group, present in a molar ratio with MgClranging from 0.5 to 5 and less than 15% wt, based on the total weight of the adduct, of a metal salt of an aliphatic carboxylic acid having from 8 to 22 carbon atoms. 1. Solid adducts comprising:{'sub': '2', 'MgCl,'}{'sub': '2', 'an alcohol ROH in which R is a C1-C10 hydrocarbon group, present in a molar ratio with MgClranging from 0.5 to 5;'}an aliphatic carboxylic acid having from 8 to 22 carbon atoms or its metal salt present in an amount of less than 15% wt, based on the total weight of the adduct.2. The solid adducts according to in which R is chosen among C1-C8 linear or branched hydrocarbon groups.3. The solid adducts according to in which the number of moles of alcohol per mole of MgClranges from 0.8 to 4.4. The solid adducts according to containing the aliphatic carboxylic acid or the metal salt in an amount ranging from 0.1 to less than 10%.5. The solid adducts according to in which the aliphatic carboxylic acid and deriving metal salt is selected from carboxylic acids having from C12-C20 carbon atoms.6. The solid adducts according to of in which the metal of the salt is selected Na claim 1 , Li claim 1 , K claim 1 , Mg claim 1 , Ca claim 1 , Zn claim 1 , and Al.7. The solid adducts according to in which the metal is selected from Na claim 6 , K claim 6 , Mg and Al.8. The adducts according to in which the aliphatic carboxylic acid is selected from linear chain carboxylic acids.9. The adducts according to in which the metal salt of the aliphatic carboxylic acid is selected from Mg stearate claim 1 , Mg oleate claim 1 , Mg palmitate.10. The adducts according to which are in spherical or spheroidal form.11. A process for the preparation of solid adducts comprising MgCland an alcohol ROH in which R is a C1-C10 hydrocarbon group claim 1 , present in a molar ratio with MgClranging from 0.5 to 5 claim 1 , comprising:{'sub': 2', '2, 'contacting ...

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01-08-2013 дата публикации

CATALYST SYSTEM FOR THE POLYMERIZATION OF OLEFINS

Номер: US20130197173A1
Принадлежит: BASELL POLIOLEFINE ITALIA S.R.L.

A catalyst system comprising the product obtained by contacting (a) a solid catalyst component containing Mg, Ti, halogen and at least an electron donor compound selected from diolesters of a specific formula (b) an alkylaluminum cocatalyst and (c) an ester of formula R′OOC—(CR″)—COOR′ in which m is an integer from to the R′ groups, equal to or different from each other, are C-C alkyl groups and the R″ groups, independently, are hydrogen or C-C hydrocarbon groups. 2. The catalyst system according to in which in the donor of formula (A) R1 and R4 are independently selected from C1-C15 alkyl groups claim 1 , C6-C14 aryl groups claim 1 , C3-C15 cycloalkyl groups claim 1 , and C7-C15 arylalkyl or alkylaryl groups.3. The catalyst system according to in which R1 and R4 are selected from C1-C10 alkyl groups.4. The catalyst system according to in which R2-R3 groups independently are selected from hydrogen claim 1 , C1-C15 alkyl groups claim 1 , C6-C14 aryl groups claim 1 , C3-C15 cycloalkyl groups claim 1 , and C7-C15 arylalkyl or alkylaryl groups.5. The catalyst system according to in which R2-R3 groups independently are selected from hydrogen or C1-C10 alkyl groups.6. The catalyst system according to in which both R2 and R3 groups claim 1 , independently claim 1 , are hydrogen.7. The catalyst system according to in which R groups are selected from C1-C15 alkyl groups claim 1 , C6-C14 aryl groups claim 1 , C3-C15 cycloalkyl groups claim 1 , and C7-C15 arylalkyl or alkylaryl groups.8. The catalyst system according to in which R groups are selected from C1-C5 alkyl groups.9. The catalyst system according to in which the index n ranges from 1 to 3.10. The catalyst system according to in which the organo aluminum compound is an alkyl-Al compound.11. The catalyst system according to in which alkyl-Al compound is an aluminum trialkyl.12. The catalyst system according to in which the ester (c) is selected from the compounds in which R′ is a C1-C6 linear or branched alkyl.13. The ...

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15-08-2013 дата публикации

ATTRITION RESISTANT CATALYST SYSTEM FOR MANUFACTURE OF POLYOLEFINS

Номер: US20130211022A1
Принадлежит: RELIANCE INDUSTRIES LIMITED

Regular shaped magnesium particles containing attrition resistant precursors and procatalysts thereof and processes for their synthesis and their use in the manufacture of polyolefins are described. A process for the synthesis of precursor particles which give highly active and improved surface area procatalysts for producing high bulk density polyolefin resins containing low fines and capable of incorporating high rubber content are described. A process for the synthesis of an attrition resistant precursors to prepare an attrition resistant Zeigler Natta procatalysts synthesized by using the precursors and to the polyolefin resin synthesized using the procatalysts is also described. 1. A process for the synthesis of magnesium containing attrition resistant precursor used to prepare procatalyst to produce high bulk density polymer resin comprising:{'sup': '3', '(i) reacting magnesium metal granules with a mixture of alcohols in the presence of iodine by maintaining the reaction temperature in the range of 40° C. to 90° C. for a period of 6-12 hours and under agitation at power consumption per unit volume from 0.1 to 30 KW/m;'}(ii) condensing the vapours which are so produced in step (i) in an overhead condenser and venting off the hydrogen gas produced which is vented off;(iii) separating the remaining mixture of alcohols left after the reaction for reuse, to obtain the final product.2. The process as claimed in claim 1 , wherein the particle size of the magnesium metal granules used is in the range of 50-1000 microns.3. The process as claimed in claim 1 , wherein the mixture of alcohols is selected from the group consisting of methanol claim 1 , ethanol claim 1 , propanol claim 1 , isopropanol claim 1 , butanol and isobutanol.4. The process as claimed in wherein the addition of reactants is independent of flow rates.5. The process as claimed in claim 1 , wherein the power consumption per unit volume is in the range of 0.1 to 10 KW/m.6. The process as claimed in ...

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29-08-2013 дата публикации

CATALYST COMPONENT FOR OLEFIN POLYMERIZATION REACTION AND CATALYST THEREOF

Номер: US20130225773A1
Принадлежит:

A catalyst component for olefin polymerization which contains magnesium, titanium, halogen and electron donors is provided in the present invention. The electron donors are selected from at least one succinate compounds of following general formula (I), and the content of said succinate compounds with the structure as shown in Formula (II) in said succinate compounds (I) is less than 100%, but not less than 51.0 wt %. Compared with the mesomer whose content with the structure as shown in Formula (II) is 100%, the catalyst component provided by the present invention not only greatly decreases the manufacturing cost, but also improves certain properties of the catalyst, for example the molecular weight distribution of polymer obtained by catalytic reaction using said catalyst is wider, which is beneficial for improving processing properties of polymers. The corresponding catalyst is also provided. 2. A catalyst component according to claim 1 , wherein in said succinate compounds as shown in Formula (I) claim 1 , the content of the succinate compound with the Fischer projection formula as shown in Formula (II) is 51.0 to 98.0 wt %.3. A catalyst component according to claim 1 , wherein in said succinate compounds as shown in Formula (I) claim 1 , the content of the succinate compound with the Fischer projection formula as shown in Formula (II) is 67.0 to 98.0 wt %.4. A catalyst component according to claim 1 , wherein in said succinate compounds as shown in Formula (I) claim 1 , the content of the succinate compound with the Fischer projection formula as shown in Formula (II) is 76.0 to 97.0 wt %.5. A catalyst component according to claim 1 , wherein in Formula (I) claim 1 , Rand Rare selected from methyl claim 1 , ethyl claim 1 , propyl claim 1 , isopropyl claim 1 , butyl claim 1 , isobutyl claim 1 , tertbutyl claim 1 , pentyl claim 1 , cyclopentyl claim 1 , cyclohexyl claim 1 , phenyl claim 1 , substituted phenyl claim 1 , alkylphenyl claim 1 , halogenated alkylphenyl ...

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05-09-2013 дата публикации

NEW INTERNAL DONORS FOR ETHYLENE POLYMERIZATION CATALYSTS AND METHODS OF MAKING AND USING SAME II

Номер: US20130231447A1
Автор: Chang Main
Принадлежит: BASF CORPORATION

Solid catalyst components are disclosed including titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. Further, methods of making the catalyst components and the catalyst systems are disclosed as well as methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems. 2. The solid catalyst component of comprising a titanium compound having at least one titanium-halogen bond and the internal electron donor compound supported on a magnesium halide crystal lattice.3. The solid catalyst component of comprising a titanium compound having at least one titanium-halogen bond and the internal electron donor compound supported on a magnesium dichloride crystal lattice.4. The solid catalyst component of claim 2 , wherein the titanium compound is TiClor TiCl.6. The solid catalyst component of claim 1 , wherein Rand Rare identical or different and are each independently a linear or branched alkyl group comprising from 1 to about 20 carbon atoms claim 1 , a cycloaliphatic group comprising from about 3 to about 20 carbon atoms claim 1 , an aryl group comprising from about 6 to about 20 carbon atoms claim 1 , an alkylaryl group comprising from about 7 to about 20 carbon atoms claim 1 , or an arylalkyl group comprising from about 7 to about 20 carbon atoms.8. The solid catalyst component of claim 7 , wherein the internal electron donor compound comprises at least one selected from the group consisting of 1-alkyl-2-methoxy ethylbenzoate claim 7 , 1-alkyl-2-methoxy ethyl 2-alkylbenzoate claim 7 , 1-alkyl-2-methoxy ethyl 3-alkylbenzoate claim 7 , 1-alkyl-2-methoxy ethyl 4-alkylbenzoate and 1-alkyl-2-methoxy ethyl 3 claim 7 ,5-dialkylbenzoate.9. The solid catalyst component of claim 8 , wherein the 1-alkyl-2-methoxy ethylbenzoate comprises at least one selected from the ...

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19-09-2013 дата публикации

Dual Metallocene Catalyst Systems for Decreasing Melt Index and Increasing Polymer Production Rates

Номер: US20130245210A1
Принадлежит: Chevron Philips Chemical Company LP

The present invention provides dual catalyst systems and polymerization processes employing these dual catalyst systems. The disclosed polymerization processes can produce olefin polymers at higher production rates, and these olefin polymers may have a higher molecular weight and/or a lower melt index. 120-. (canceled)22. The process of claim 21 , wherein the process is conducted in a batch reactor claim 21 , slurry reactor claim 21 , gas-phase reactor claim 21 , solution reactor claim 21 , high pressure reactor claim 21 , tubular reactor claim 21 , autoclave reactor claim 21 , or a combination thereof.23. The process of claim 21 , wherein:the melt index of the olefin polymer produced by the process is in a range from about 0.1 to about 5 g/10 min; and{'sup': '3', 'a density of the olefin polymer produced by the process is in a range from about 0.89 to about 0.94 g/cm.'}24. The process of claim 21 , wherein catalyst component I comprises a compound having formula (C) claim 21 , and wherein:{'sup': 4', '5, 'Xand Xare independently F, Cl, Br, I, benzyl, phenyl, or methyl;'}{'sup': '3', 'claim-text': a cyclopentyl or cyclohexyl group,', {'sup': 3A', '7A', '8A', '3A', '7A', '8A, 'a bridging group having the formula >ERR, wherein Eis C or Si, and Rand Rare independently H, methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, ethenyl, propenyl, butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, phenyl, tolyl, or benzyl,'}, {'sup': 7B', '8B', '7C', '8C', '7B', '8B', '7C', '8C, 'a bridging group having the formula —CRR—CRR—, wherein R, R, R, and Rare independently H or methyl, or'}, {'sup': 7D', '8D', '7E', '8E', '7D', '8D', '7E', '8E, 'a bridging group having the formula —SiRR—SiRR—, wherein R, R, R, and Rare independently H or methyl; and'}], 'Eis a bridging group selected from{'sup': 9', '10, 'Rand Rare independently H or t-butyl.'}25. The process of claim 21 , wherein catalyst component I comprises a compound having formula (D) claim ...

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03-10-2013 дата публикации

Process for Production of High Melt Flow Propylene-Based Polymer and Product from Same

Номер: US20130261273A1
Принадлежит:

Disclosed are catalyst compositions having an internal electron donor which includes a 3,6-di-substituted-1,2-phenylene aromatic diester. Ziegler-Natta catalyst compositions containing the present catalyst compositions exhibit very high hydrogen response, high activity, high selectivity and produce propylene-based olefins with high melt flow rate. 1. A process for producing a propylene-based polymer comprising:{'sub': '2', 'contacting, under polymerization conditions and in the presence of hydrogen (H), propylene and optionally one or more comonomers with a catalyst composition comprising a procatalyst composition comprising a 3,6-di-substituted-1,2-phenylene dibenzoate, a cocatalyst, and an external electron donor;'}{'sub': '2', 'maintaining a H/propylene mole ratio from 0.005 to less than 0.1 during the contacting; and'}forming a propylene-based polymer having a melt flow rate greater than 10 g/10 min.2. The process of comprising maintaining a H/propylene mole ratio from 0.03 to less than 0.1 during the contacting; andforming a propylene-based polymer having a melt flow rate greater than 100 g/10 min.4. The process of wherein Rand Reach is selected from the group consisting of a C-Calkyl group claim 3 , a C-Calkenyl group claim 3 , and combinations thereof.5. The process of wherein at least one of Rand Ris a methyl group.6. The process of wherein each of Rand Ris a methyl group.7. The process of wherein Ris a methyl group and Ris an isopropyl group.8. The process of wherein each of Rand Ris a methyl group claim 3 , Ris hydrogen claim 3 , and Ris selected from the group consisting of an isopropyl group claim 3 , a cyclopentyl group claim 3 , a cyclohexyl group claim 3 , an aryl group claim 3 , an alkylaryl group claim 3 , a tert-butyl group claim 3 , and a 2 claim 3 ,3 claim 3 ,3-trimethylbutan-2-yl group.9. The process of wherein each of Rand Ris a methyl group and Ris an isopropyl group.10. The process of comprising forming a propylene homopolymer having a melt ...

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10-10-2013 дата публикации

Methods for producing telechelic polyolefins from terpene initiators

Номер: US20130267669A1
Принадлежит: Chevron Oronite Co LLC

Provided herein are methods for the preparation of telechelic polyolefins via polymerization reaction with a terpene initiator.

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17-10-2013 дата публикации

MAGNESIUM HALIDE SUPPORT FOR USE AS A COMPOSITION OF A CATALYST FOR THE OLEFIN POLYMERIZATION, AND METHOD OF PREPARATION OF THE MAGNESIUM HALIDE SUPPORT

Номер: US20130274098A1
Принадлежит: PTT Global Chemical Pcl

An aspect of the present invention is a preparation of a magnesium halide support for using as a composition of a catalyst in an olefin polymerization, wherein the magnesium halide support is a solid substance prepared by an aliphatic alcohol non-ionic surfactant, preferably is ethoxylated aliphatic alcohol. Another aspect of the present invention is a method for the preparation of the magnesium halide support for using as the composition of the catalyst in the olefin polymerization comprising the following steps: (a) adding a magnesium halide compound into an organic solvent, and heating; (b) cooling down the mixture from (a) rapidly to the room temperature or lower in the inert organic solvent and the aliphatic alcohol non-ionic surfactant; and (c) washing the magnesium halide with the anhydrous inert organic solvent, and drying, wherein the aliphatic alcohol non-ionic surfactant is ethoxylated aliphatic alcohol. 1. A magnesium halide support for using as a composition of catalyst in an olefin polymerization , wherein the magnesium halide support is a solid obtainable via an aliphatic alcohol non-ionic surfactant.2. The magnesium halide support according to claim 1 , wherein the non-ionic surfactant is ethoxylated aliphatic alcohol.3. The magnesium halide support according to or claim 1 , wherein the aliphatic alcohol comprises at least 1 to 12 ethoxylate groups.4. The magnesium halide support according to any one of the preceding claims claim 1 , wherein the non-ionic surfactant is the aliphatic alcohol that comprises 1 to 5 ethoxylate groups.5. The magnesium halide support according to any one of the preceding claims claim 1 , wherein the non-ionic surfactant is the aliphatic alcohol of which has a chain of an even number of carbon atoms.6. The magnesium halide support according to any one of the preceding claims claim 1 , wherein the non-ionic surfactant is the aliphatic alcohol of a mixture of saturated and unsaturated chains.7. The magnesium halide support ...

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17-10-2013 дата публикации

MAGNESIUM DICHLORIDE-ETHANOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM

Номер: US20130274428A1
Принадлежит: Bassell Poliolefine Italia S.r.l.

A solid adduct comprising magnesium chloride and ethanol in which the moles of ethanol per mole of magnesium chloride range from 2 to 5 and in which the ratio between the average pore radius measured in Angstrom of said adduct, determined by mercury porosity, and the moles of ethanol, is higher than 500. 1. A solid adduct comprising magnesium chloride and ethanol in which the moles of ethanol per mole of magnesium chloride range from 2 to 5 and in which the ratio between the average pore radius of the adduct and the moles of ethanol , is higher than 500.2. The solid adduct of in which the ratio between the average pore radius of said adduct and the moles of ethanol is higher than 540.3. The solid adduct according to in which the ratio between the average pore radius of said adduct and the moles of ethanol is higher than 600 in correspondence with a number of ethanol moles ranging from 2.2 to 4.5.4. The solid adduct according to having a spherical morphology and average diameter comprised between 5 and 150 μm.5. The solid adduct according to having mercury porosity ranging from 0.05 to 0.2 cm/g with pores having average pore radius from 0.18 to 0.35 μm.6. Process for the preparation of the solid adducts of comprising claim 1 , in a first step claim 1 , mixing MgCl claim 1 , and ethanol claim 1 , heating the system at the melting temperature of MgCl-alcohol adduct or above claim 1 , and maintaining said conditions so as to obtain a completely melted adduct claim 1 , said step being characterized by the fact that an additional amount of water is added so as to bring its content to at least 0.8% of the total MgCl claim 1 , ethanol and water mixture; in a subsequent step claim 1 , said molten adduct is then emulsified in a liquid medium which is immiscible with and chemically inert to it claim 1 , and finally and quenched by contacting the adduct with an inert cooling liquid thereby obtaining the solidification of the adduct.7. Solid catalyst components for the ...

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28-11-2013 дата публикации

CATALYST PRECURSOR AND CATALYST FOR THE HIGH-TEMPERATURE (CO)POLYMERIZATION OF ALPHA-OLEFIN

Номер: US20130317184A1
Принадлежит:

A precursor for the formation of catalysts for the (co)polymerization of α-olefins, comprising titanium, magnesium, at least one metal selected from hafnium and zirconium, aluminum and chlorine, obtained with a process comprising treatment with a siloxane compound. Said solid precursor, used in combination with a suitable co-catalyst in high-temperature (co)polymerization processes of α-olefins, shows an improved productivity, a high incorporation of co-monomers in the copolymerization of ethylene and an increased thermal stability with respect to the systems so far in use. 1. A catalyst precursor for the (co)polymerization of alpha-olefins , comprising titanium , magnesium , aluminium , chlorine and at least one metal M selected from hafnium and zirconium characterized in that it is obtained by means of a process comprising the following steps:(i) heating a mixture in a liquid hydrocarbon medium comprising a magnesium chloride, a compound of titanium, a compound of said metal M, a carboxylic acid R—COOH, wherein R is an organic group having from 2 to 30 carbon atoms, in such quantities as to respect the following atomic or molar ratio ranges:M/Ti=0.2-5.0; Mg/Ti=3.0-20.0; R—COOH/(Mg+M)=1-8at a temperature ranging from 50 to 200° C. for at least one minute separating the possible solid residue remaining undissolved, to obtain a solution; {'br': None, 'sup': '′', 'sub': n', '(3-n), 'AlRCl\u2003\u2003(I)'}, '(ii) adding to the solution obtained in step (i), an aluminium alkyl chloride having the following general formula (I)wherein: R′ is a linear or branched alkyl radical, containing from 1 to 20 carbon atoms, and “n” is a decimal number having values ranging from 0.5 to 2.5.in an amount sufficient for precipitating in the form of a solid compound at least 70% of the metals Mg, M and Ti present in said solution, and heating the mixture thus obtained to a temperature ranging from 40 to 130° C. for a time ranging from 5 to 240 minutes to obtain a solid precipitate ...

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28-11-2013 дата публикации

POLYISOBUTYLENE COMPOSITION HAVING INTERNAL VINYLIDENE AND PROCESS FOR PREPARING THE POLYISOBUTYLENE POLYMER COMPOSITION

Номер: US20130317189A1
Автор: Baxter, JR. C. Edward
Принадлежит: PETROCHEMICAL SUPPLY, INC.

A polyisobutylene composition has polyisobutylene molecules with a first portion having a alpha vinylidene molecules, a second portion having beta vinylidene molecules, and a third portion having internal vinylidene molecules. The first portion has less than 75% of the polyisobutylene molecules of the composition. A total of the first portion and the. second portion is less than 90% of the polyisobutylene molecules of the composition. The third portion is more than 3% of the polyisobutylene molecules of the composition. A process for forming this polyisobutylene polymer composition passes an isobutylene through a fixed bed reactor having a boron trifluoride/alcohol complex therein so as to produce the polyisobutylene composition. 1. A polyisobutylene composition comprising polyisobutylene molecules , wherein a first portion of the polyisobutylene molecules has alpha vinylidene molecules and a second portion of the polyisobutylene molecules has beta vinylidene molecules and a third , portion of the polyisobutylene molecules has internal vinylidene molecules , wherein the first portion has less than 75% of the polyisobutylene molecules of the composition , wherein a total of first portion and the second portion is less than 90% of the polyisobutylene molecules of the composition , and wherein the third portion is more than 3% of the polyisobutylene molecules of the composition.2. The polyisobutylene composition of claim 1 , wherein a sum of the first portion and the second portion and the third portion is less than 90% of the polyisobutylene molecules of the composition.3. The polyisobutylene composition of claim 1 , wherein the second portion is less than 10% of the polyisobutylene molecules of the composition.4. The polyisobutylene composition of claim 1 , wherein the first portion is between 20% and 75% of the polyisobutylene molecules of the composition.5. The polyisobutylene composition of claim 1 , wherein said polyisobutylene composition has a fourth portion ...

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19-12-2013 дата публикации

Process for Improving Bulk Density with Multi-Contact Procatalyst and Product

Номер: US20130338321A1
Принадлежит:

Disclosed herein are processes for preparing procatalyst compositions which include multiple contact steps in the presence of a substituted phenylene aromatic diester and at least one other internal electron donor. The multi-contact procatalyst compositions produced from the present processes improve polymer properties and polymerization parameters. In particular, the present multi-contact procatalyst compositions improve polymer bulk density. 1. A process for producing a procatalyst composition comprising:first contacting a procatalyst precursor with a halogenating agent in the presence of an internal electron donor selected from the group consisting of a substituted phenylene aromatic diester, a benzoate-based component, an alkoxyalkyl ester, and combinations thereof to form a procatalyst intermediate;second contacting the procatalyst intermediate with a halogenating agent in the presence of an internal electron donor selected from the group consisting of a substituted phenylene aromatic diester, a benzoate-based component, an alkoxyalkyl ester, and combinations thereof, at least one of the contact steps occurring in the presence of a substituted phenylene aromatic dibenzoate; andforming a multi-contact procatalyst composition.2. The process of comprising performing the first contacting and the second contacting in the presence of a 3-methyl-5-t-butyl-1 claim 1 ,2-phenylene dibenzoate.5. A process for producing a procatalyst composition comprising:first contacting a procatalyst composition with a halogenating agent in the presence of a substituted phenylene aromatic dibenzoate and an alkoxyalkyl ester to form a procatalyst intermediate; andsecond contacting the procatalyst intermediate with a halogenating agent in the presence of an internal electron donor selected from the group consisting of a substituted phenylene aromatic diester, an alkoxyalkyl ester, and combinations thereof; andforming a multi-contact procatalyst composition comprising a substituted ...

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06-02-2014 дата публикации

CATALYST SUPPORTED ON ALUMINA FOR USE IN POLYMERIZATION OF OLEFINS AND METHOD OF PREPARING THEM

Номер: US20140038809A1
Принадлежит: PETROLEO BRASILEIRO S.A. - PETROBRAS

The present invention relates to a supported catalyst for the polymerization of olefins. More specifically, the present invention provides a catalyst comprising a spherical alumina support modified by the addition of a magnesium compound containing a magnesium alkoxide and the product of the reaction of it with a titanium halide. The present invention also relates to the method for preparing said supported catalyst. 1. Supported Solid Catalyst of the Ziegler-Natta Type for Polymerization of Olefins , characterized in that it comprises a spherical support of alumina modified with magnesium , with an AlO/Mg molar ratio between 0.3 and 80 , by incorporating titanium , wherein the percentages by mass of each component relative to total mass of catalyst are:a) between 0.4% and 6.0%, for titanium;b) between 0.3% and 15.0%, for magnesium;c) between 9.0% and 48.0%, for aluminum.2. Catalyst claim 1 , according to claim 1 , characterized in that the percentage by mass of magnesium is between 0.6% and 10.0% relative to the total catalyst mass.3. Catalyst claim 1 , according to claim 1 , characterized in that the percentage by mass of titanium is between 0.8% and 3.8% relative to the total catalyst mass.4. Catalyst claim 1 , according to claim 1 , characterized in that the percentage by mass of magnesium is between 15.0% and 44.0% relative to the total catalyst mass.5. Catalyst claim 1 , according to claim 1 , characterized in that the molar ratio AlO/Mg is between 0.8 and 36.6. Catalyst claim 1 , according to claim 1 , characterized in that it exhibits a ratio between the largest and smallest linear particle diameter less than 1:5; average particle diameter between 5 μm and 140 μm; and due to the alumina support exhibits a pore volume between 0.4 ml/g and 5.0 ml/g; surface area between 80 m/g and 1600 m/g; and surface hydroxyl content of from 0.1 mmol to 2.5 mmol of hydroxyl groups per gram of solid support.7. Catalyst claim 1 , according to claim 1 , characterized in that it ...

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13-02-2014 дата публикации

CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

Номер: US20140046010A1
Принадлежит: Basell Poliolefine Italia S.r.I.

A porous solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being selected from 1,3-diethers and the other being selected from succinates, characterized by the fact that the molar ratio ID/Ti is from 0.30 to 0.90, where ID is the total molar amount of succinate and 1,3-diether, the molar ratio of the 1,3-diether donor to the succinate donor is higher than, or equal to, 0.60. 1. A solid catalyst component comprising:(i) a magnesium halide,(ii) a titanium compound having at least a Ti-halogen bond,(iii) a first internal electron donor, and(iii) a second internal electron donor,wherein the first internal electron donor compound is a 1,3-diether, and wherein the second internal electron donor is a succinate,wherein the first internal electron donor and the second internal electron donor have an internal electron donor molar ratio, and the internal electron molar ratio to Ti is from 0.30 to 0.90,wherein the first internal electron donor and the second internal electron donor are present in a molar ratio higher than, or equal to 0.6{'sup': '3', 'wherein the solid catalyst component has a pore radius of at least 0.30 cm/g, based upon pores with a radius equal to or less than 1 μm present in the solid catalyst component.'}2. The solid catalyst component according to claim 1 , wherein the internal electron molar ratio to Ti is from 0.45 to 0.75.3. The solid catalyst component according to claim 1 , wherein the first internal electron donor and the second internal electron donor are present in a molar ratio from 0.80 to 2.4. The solid catalyst component according to claim 3 , wherein the first internal electron donor and the second internal electron donor are present in a molar ratio from 1 to 1.80.5. The solid catalyst component according to in which the porosity is higher than 0.35 cm/g.8. The solid catalyst component according to claim 1 , wherein the solid ...

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13-02-2014 дата публикации

MAGNESIUM DICHLORIDE-ALCOHOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM

Номер: US20140046011A1
Принадлежит: Basell Poliolefine Italia S. r. I.

Process for the preparation of solid particles of a magnesium-chloride alcohol adduct comprising (a) forming an emulsion between a MgClalcohol adduct in molten form and a liquid phase which is immiscible with the said adduct in the presence of a polyalkyl-methacrylate used as a solution having viscosity ranging from 100 to 5000 mm/s and (b) rapidly cooling the emulsion to solidify the disperse phase and collecting the solid adduct particles. 1. A process for preparing solid particles of a magnesium-chloride alcohol adduct comprising the steps of: a polyalkyl-methacrylate,', {'sub': '2', '(ii) a MgCl•alcohol adduct in molten form, and'}, '(iii) a liquid phase,', {'sub': 2', '2, 'wherein the MgCl•alcohol adduct is immiscible in the liquid phase thereby forming droplets containing the MgCl•alcohol adduct in the liquid phase,'}, {'sup': '2', 'wherein the a polyalkyl-methacrylate has a viscosity ranging from 100 to 5000 mm/s;'}], '(a) forming an emulsion, wherein the emulsion comprises{'sub': '2', '(b) solidifying the droplets containing the MgCl•alcohol adduct to produce the solid particles of the magnesium-chloride alcohol adduct; and'}(c) collecting the solid particles of the magnesium-chloride alcohol adduct.2. The process according to claim 1 , wherein a polyalkyl-methacrylate has viscosity ranging from 300 to 3000 mm/s.3. The process according to claim 1 , the polyalkyl-methacrylate is dissolved in mineral oil at a concentration ranging from 10-90% wt.4. The process according to claim 1 , wherein the alkyl group of the polyalkyl-methacrylate has from 1 to 15 carbon atoms.5. The process according to claim 4 , wherein the polyalkyl methacrylate is selected from poly-n-butylmethacrylates.6. The process according to claim 1 , wherein the polyalkyl-methacrylate has molecular weight higher than 100 claim 1 ,000.7. The process according to claim 1 , wherein the MgCl•alcohol adduct has a formula:{'br': None, 'sub': 2', '2, 'i': .m', 'n, 'MgClROH.HO'}whereinm ranges from 0. ...

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27-02-2014 дата публикации

Heterocyclic Organic Compounds As Electron Donors for Polyolefin Catalysts

Номер: US20140058053A1
Принадлежит: Formosa Plastics Corporation USA

Heterocyclic organic compounds are used as electron donors in conjunction with solid Ziegler-Natta type catalyst in processes in which polyolefins such as polypropylene are produced. The electron donors may be used in the preparation of solid catalyst system, thus serving as “internal electron donors”, or they may be employed during or prior to polymerization with the co-catalyst as “external electron donors”. 129-. (canceled)31. The solid catalyst component of claim 30 , wherein Rcontains at least one heteroatom selected from the group consisting of B claim 30 , Si claim 30 , and halogen atoms.32. The solid catalyst component of claim 30 , wherein the backbone of the bridging groups is selected from the group consisting of aliphatic claim 30 , alicyclic claim 30 , and aromatic radicals.33. The solid catalyst component of claim 30 , wherein A cannot be connected to a nitrogen atom to form a carbon nitrogen double bond when the backbone of R group is a single carbon atom.34. The solid catalyst component of claim 30 , wherein Ris selected from the group consisting of hydrogen claim 30 , methyl claim 30 , and ethyl.35. The solid catalyst component of claim 30 , wherein R claim 30 , R claim 30 , and Rindependently comprise C-Clinear and/or branched substituents.36. The solid catalyst component of claim 30 , wherein two or more of said R claim 30 , R claim 30 , R claim 30 , R claim 30 , and Rmay be linked to form one or more saturated or unsaturated monocyclic or polycyclic rings.37. The solid catalyst component of claim 30 , wherein at least one of a carbon atom or hydrogen atom of R may be replaced by a heteroatom selected from the group consisting of O claim 30 , N claim 30 , S claim 30 , P claim 30 , B claim 30 , Si claim 30 , and halogen atoms claim 30 , wherein O claim 30 , N claim 30 , S claim 30 , and P can only be embedded in the backbone of the bridging groups.38. The solid catalyst component of claim 30 , wherein at least one of a carbon atom or hydrogen atom ...

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20-03-2014 дата публикации

Polymerization of isoprene from renewable resources

Номер: US20140080983A1
Принадлежит: DANISCO US INC, Goodyear Tire and Rubber Co

This invention relates to compositions and methods for producing polymers of isoprene derived from renewable resources, such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by its purity profile (such as lower levels of certain C 5 hydrocarbons other than isoprene, presence of certain compounds associated with the biological process for production) and the relative content of the carbon isotopes. Polymers obtained by polymerization of such starting isoprene composition according to this invention, such as a polyisoprene homopolymer or a copolymer having repeat units that are derived from isoprene, are distinguishable from isoprene containing polymers from petrochemical resources.

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14-01-2016 дата публикации

SUPPORTED POLYOLEFIN CATALYST AND PREPARATION AND APPLICATION THEREOF

Номер: US20160009830A1
Принадлежит: PETROCHINA COMPANY LIMITED

The present invention relates to a supported polyolefin catalyst and its preparation and application. Its main catalyst is composed of a support and a transition metal halide; the support is composed of a magnesium halide compound, a silicon halide compound, an alcohol compound having 5 carbon atoms or less, an alcohol compound having carbon atom number of 6-20 in a molar ratio of 1:(0.1 to 20):(0.1 to 5):(0.01 to 10); the molar ratio of the magnesium halide compound and the transition metal halide is 1:(0.1 to 30); during the preparation process of the main catalyst, an organic alcohol ether compound is added, the mass ratio of the magnesium halide compound and the organic alcohol ether compound is 100:(0.1 to 20); and the molar ratio of the transition metal halide in the main catalyst and the co-catalyst is 1:(30 to 500). The catalyst particles of the present invention have a good shape and a uniform particle size distribution, with polymer obtained under catalysis using it having a low content of fine powders and a high bulk density, thus suitable for olefin slurry polymerization process, a gas phase polymerization process or a combined polymerization process. 1. A supported polyolefin catalyst consisting of a main catalyst and a co-catalyst , whereinthe main catalyst comprises a support and a transition metal halide; the support comprises a magnesium halide compound, a silicon halide compound, an alcohol compound having 5 carbon atoms or less, an alcohol compound having carbon atom number of 6-20; wherein the molar ratio of the magnesium halide compound, the silicon halide compound, the alcohol compound having 5 carbon atoms or less, and the alcohol compound having carbon atom number of 6-20 is 1:(0.1 to 20):(0.1 to 5):(0.01 to 10); wherein the molar ratio of the magnesium halide compound and the transition metal halide is 1:(0.1 to 30); wherein the main catalyst is prepared by a process comprising adding an organic alcohol ether compound, wherein the mass ratio ...

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22-01-2015 дата публикации

CATALYST SYSTEM FOR THE POLYMERIZATION OF OLEFINS

Номер: US20150025211A1
Принадлежит: BASELL POLIOLEFINE ITALIA S.R.L.

A catalyst system comprising the product obtained by contacting (a) a solid catalyst component containing Mg, Ti, halogen and at least an electron donor compound selected from phenylene aromatic diesters of a specific formula 1. A catalyst system for olefin polymerization comprising the product obtained by contacting (a) a solid catalyst component containing Mg , Ti , halogen and at least an electron donor compound selected from phenylene aromatic diesters;(b) an alkylaluminum cocatalyst and{'sub': 2', 'm', '1', '10', '1', '15, '(c) an ester formula R′OOC—(CR″)—COOR′ in which m is an integer from 2 to 7, the R′ groups, equal to or different from each other, are C-Calkyl groups and the R″ groups, independently, are hydrogen or C-Chydrocarbon groups.'}2. The catalyst system according to in which the phenylene aromatic diester is selected from 1 claim 1 ,2-phenylene aromatic diesters.4. The catalyst system according to in which R-Requal to or different from each other claim 2 , are hydrogen claim 2 , halogen or C-Calkyl groups with the proviso that at least one is different from hydrogen.5. The catalyst system according to in which at least one of said R-Rgroups is selected from C-Calkyl groups.6. The catalyst system according to in which Rand Rgroups are selected from C-Calkyl groups.7. The catalyst system according to in which the ester (c) is selected from the compounds in which R′ is a C-Clinear or branched alkyl.8. The catalyst system according to in which in the ester (c) m is from 3 to 6 claim 1 , and the groups R″ claim 1 , independently claim 1 , are selected from hydrogen or C1-C10 linear or branched alkyl groups.9. The catalyst system according to in which the ester (c) is selected from adipates and pimelates.10. A process for the (co)polymerization of olefins carried out in the presence of an olefin claim 1 , hydrogen and a catalyst system according to . The present invention relates to a catalyst system capable to produce propylene polymers with good ...

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10-02-2022 дата публикации

SOLID CATALYST COMPONENT FOR OLEFIN POLYMERIZATION

Номер: US20220041763A1
Автор: Ito Masaki
Принадлежит:

To produce an olefin-based polymer having a minor amount of decrease in bulk density due to heat. 1. A solid catalyst component for olefin polymerization containing a titanium atom , a magnesium atom , a halogen atom , and an internal electron donor , and having an envelope E1 calculated by the following Formula (1) in a range of 0.810 to 0.920:{'br': None, 'i': E', '=LE', 'LS, '11/1 \u2003\u2003(1)'}wherein LE1 is a convex hull perimeter of the solid catalyst component for olefin polymerization obtained from an image of the solid catalyst component for olefin polymerization captured with a scanning electron microscope, andLS1 is an actual perimeter of the solid catalyst component for olefin polymerization obtained from the image of the solid catalyst component for olefin polymerization captured with the scanning electron microscope.2. The solid catalyst component for olefin polymerization according to claim 1 , wherein E1 is 0.840 to 0.920.3. The solid catalyst component for olefin polymerization according to claim 2 , wherein E1 is 0.860 to 0.915.4. The solid catalyst component for olefin polymerization according claim 1 , wherein the internal electron donor is at least one selected from the group consisting of monoester compounds claim 1 , aliphatic dicarboxylic acid ester compounds claim 1 , aromatic dicarboxylic acid ester compounds claim 1 , diol diester compounds claim 1 , and ether compounds.5. The solid catalyst component for olefin polymerization according to claim 1 , wherein the internal electron donor is at least one selected from the group consisting of aliphatic dicarboxylic acid ester compounds claim 1 , and aromatic dicarboxylic acid ester compounds.6. The solid catalyst component for olefin polymerization according to claim 1 , wherein an olefin contains at least one component selected from propylene claim 1 , ethylene claim 1 , and 1-butene.7. A catalyst for olefin polymerization containing the solid catalyst component for olefin polymerization ...

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24-01-2019 дата публикации

METHOD OF PREPARING RUBBER COMPOSITION INCLUDING SYNDIOTACTIC 1,2-POLYBUTADIENE

Номер: US20190023815A1
Принадлежит:

Provided is a method of preparing a rubber composition, which includes (a) reacting a conjugated diene-based monomer with one or more of compounds in the presence of a first catalyst; (b) adding a conjugated diene-based monomer to a product of the step (a) and inducing a reaction; and (c) adding a second catalyst and a conjugated diene-based monomer to a product of the step (b) and inducing a reaction. 1. A method of preparing a rubber composition , comprising:(a) reacting a conjugated diene-based monomer with one or more of compounds represented by the following Chemical Formulas 1 and 2 in the presence of a first catalyst;(b) adding a conjugated diene-based monomer to a product of the step (a) and inducing a reaction; and [{'br': None, 'sub': 1', 'm', '1', 'n', '2', '2', 'o, '(R)—Z\ue8a0C≡C\ue8a0Z—(R)\u2003\u2003'}, {'br': None, 'sub': 1', 'm', '1', '1', 'n', '2', '2', '2', 'o, '(R)—Z-A\ue8a0C≡C\ue8a0A-Z—(R)\u2003\u2003'}], '(c) adding a second catalyst and a conjugated diene-based monomer to a product of the step (b) and inducing a reaction{'sub': 1', '2, 'wherein Rand Reach are a C1 to C20 alkyl, aryl, or alkoxy group, —NR′R″, —SiR′R″R″′, or hydrogen, wherein R′, R″, and R′″ each are a C1 to C20 alkyl, aryl, or alkoxy group, or hydrogen,'}m and o each are an integer of 0 to 3,{'sub': 1', '2, 'Zand Zeach are silicon, tin, nitrogen, oxygen, sulfur, phosphorus, carbon, or hydrogen,'}{'sub': 1', '2, 'Aand Aeach are a C1 to C20 alkylene or arylene group, and'}n is an integer of 1 to 20.2. The method of claim 1 , wherein the first catalyst is a neodymium-based catalyst prepared from a monomeric neodymium salt compound.3. The method of claim 2 , wherein the monomeric neodymium salt compound is one or more selected from the group consisting of neodymium hexanoate claim 2 , neodymium heptanoate claim 2 , neodymium octanoate claim 2 , neodymium octoate claim 2 , neodymium naphthenate claim 2 , neodymium stearate claim 2 , neodymium ...

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24-02-2022 дата публикации

Methods of Preparing a Catalyst

Номер: US20220056173A1
Принадлежит:

A hydrogel comprising water, and a plurality of titanium-silica nanoparticle agglomerates, wherein each titanium-silica nanoparticle agglomerate is an agglomeration of titanium-silica nanoparticles, the agglomerates having an average titanium loading designated x with a coefficient of variation for the average titanium loading of less than about 1.0, wherein a silica content of the hydrogel is of from about 10 wt. % to about 35 wt. % based on a total weight of the hydrogel. 1. A hydrogel comprising:water; anda plurality of titanium-silica nanoparticle agglomerates, wherein each titanium-silica nanoparticle agglomerate is an agglomeration of titanium-silica nanoparticles, the agglomerates having an average titanium loading designated x with a coefficient of variation for the average titanium loading of less than about 1.0,wherein a silica content of the hydrogel is in a range of from about 18 wt. % to about 35 wt. % based on a total weight of the hydrogel.2. The hydrogel of wherein the titanium-silica nanoparticles have a coefficient of variation of the average titanium penetration depth of from about 0.1 to about 0.9.3. The hydrogel of wherein the titanium-silica nanoparticles have an average particle size of from about 4 to about 7 nanometers.4. The hydrogel of wherein a coefficient of variation for the average particle size of the titanium-silica nanoparticles is less than about 1.5. The hydrogel of having an x value of from about 0.25 wt. % to about 8 wt. % based on the total weight of the hydrogel.6. The hydrogel of having an x value of from about 1 titanium atoms/sqnm to less than about 4 titanium atoms/sqnm.7. The hydrogel of having a mL pore water in the pores of the hydrogel claim 1 , per g of silica of from about 1.9 cm/g to about 4.6 cm/g.8. The hydrogel of wherein the titanium-silica nanoparticle agglomerates are formed from an acidic titanium solution comprising a trivalent titanium claim 1 , tetravalent titanium claim 1 , titania claim 1 , or a ...

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18-02-2021 дата публикации

Compositions for forming polymer brushes

Номер: US20210047456A1
Принадлежит:

The present invention relates to novel chemical solutions suitable for forming polymer brushes on a surface of a solid part. The present invention further relates to methods of forming polymer brushes on the surface of a solid part using the novel chemical solutions as well as solid parts having polymer brushes coated onto the surface and uses of such solid parts. 1. A reaction composition comprising at least one polymerisation composition , and at least one activation agent ,{'sub': 2', '2', '3', '3', '4, 'wherein the at least one polymerisation composition comprises one or more dormant transition metal catalysts selected from CuO, CuO, and Cu, and FeO, FeO, and FeO, as well as combinations thereof,'}wherein the activation agent comprises one or more oxygen scavengers, andwherein the at least one polymerisation composition and the at least one activation agent are provided as discrete compositions.2. The reaction composition according to claim 1 , wherein each of the at least one polymerisation composition and the at least one activation agent can be stored at any suitable temperature until use.3. The reaction composition according to wherein the one or more oxygen scavengers are selected from sodium ascorbate claim 1 , ascorbic acid claim 1 , hydrazine claim 1 , hydrazine hydrate claim 1 , sodium hypophosphite claim 1 , a mixture of iron powder and sodium chloride claim 1 , hydrogen carbonate claim 1 , citric acid claim 1 , and pyrogallic acid claim 1 , as well as mixtures thereof.4. The reaction composition according wherein the polymerisation composition and/or the activation agent further comprises one or more monomers claim 1 , one or more ligands claim 1 , or one or more solvents claim 1 , as well as combinations thereof.5. The reaction composition according to claim 4 , wherein the monomers are selected from acrylates claim 4 , methacrylates claim 4 , halogen-substituted alkenes claim 4 , acrylamides claim 4 , methacrylamides claim 4 , and styrenes claim 4 , ...

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01-05-2014 дата публикации

Polypropylene with narrow molecular weight distribution range and processes for preparation thereof

Номер: US20140121339A1

Disclosed herein are a polypropylene with narrow molecular weight distribution and a process for preparing the same in a reactor using a Ziegler-Natta catalyst.

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01-05-2014 дата публикации

POLYPROPYLENE FILMS AND SHEETS

Номер: US20140121340A1
Принадлежит: BASELL POLIOLEFINE ITALIA S.R.I

Films or sheets of polypropylene, particularly biaxially oriented polypropylene (BOPP) films, exhibiting excellent physical and mechanical properties combined with good processing characteristics can be prepared from propylene polymers prepared in the presence of Ziegler-Natta catalysts comprising a succinate and a diether compound. 1. An article comprising , a polypropylene having:(i) a stereoblock content of greater than 8 wt. %,(ii) a flexural modulus of greater than 1600 MPa, a) a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other being selected from 1,3 diethers,', 'b) an aluminum hydrocarbyl compound, and', 'c) an external electron donor compound., 'wherein the polypropylene is obtained by a polymerization process carried out in the presence of a catalyst system comprising the product obtained by contacting the following components2. The article of claim 1 , wherein the article is an oriented film.3. The article of claim 1 , wherein the article is a biaxially oriented film.4. The article of claim 1 , wherein the polypropylene has a melt flow rate from 1 to 5 g/10 min.5. The article of claim 1 , wherein the polypropylene has Polydispersity Index from 3.5 to 6.5.6. The article of claim 1 , wherein the polypropylene has a xylene insolubility preferably higher than 90% claim 1 , more preferably higher than 92% and even more preferably higher than 94%.7. The article of claim 1 , wherein the polypropylene has an isotactic index higher than 92%.8. The article of claim 1 , wherein the polypropylene has a molecular weight distribution higher than 5.9. The article of claim 1 , wherein the polypropylene has a value of z/ w ratio higher than 2.5.10. The article of claim 1 , wherein the article is a multilayer laminated article ...

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08-05-2014 дата публикации

PROCESS OF POLYMERIZATION CATALYST PRODUCTION WITH CONTROLLED CATALYST PROPERTIES AND USE OF SAME IN OLEFIN POLYMERIZATIONS

Номер: US20140128556A1
Принадлежит: BASF CORPORATION

Solid catalyst components for use in olefin polymerization, olefin polymerization catalyst systems containing the solid catalyst components, methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing and copolymerizing olefins involving the use of the catalyst systems. The solid catalyst components are formed by (a) dissolving a magnesium compound and an auxiliary intermediate electron donor in at least one first solvent to form a solution; (b) contacting a first titanium compound with said solution to form a precipitate of the magnesium compound and the first titanium compound; (c) washing the precipitate with a mixture of a second titanium compound and at least one second solvent and optionally an electron donor at a temperature of up to 90° C.; and (d) treating the precipitate with a mixture of a third titanium compound and at least one third solvent at 90-150° C. to form a solid catalyst component. 1. A process for preparing a solid catalyst component for use in olefinic polymerization , said process comprising the following steps:(a) dissolving a magnesium compound and an auxiliary intermediate electron donor in at least one first solvent to form a solution;(b) contacting a first titanium compound with said solution to form a precipitate of the magnesium compound and the first titanium compound;(c) washing the precipitate with a mixture of a second titanium compound and at least one second solvent at a temperature of up to 90° C.; and(d) treating the precipitate with a mixture of a third titanium compound and at least one third solvent at 90-150° C.2. The process of claim 1 , wherein at least one of said first claim 1 , second claim 1 , or third titanium compound is a titanium halide.3. The process of claim 2 , wherein said titanium halide is TiCl.4. The process of claim 1 , wherein in step (a) said at least one first solvent comprises at least one compound selected from the group consisting of alcohol claim 1 , epoxy ...

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20-02-2020 дата публикации

SURFACTANT ASSISTED FORMATION OF A CATALYST COMPLEX FOR EMULSION ATOM TRANSFER RADICAL POLYMERIZATION PROCESSES

Номер: US20200055967A1
Принадлежит:

Systems and methods for Atom Transfer Radical Polymerization (ATRP) emulsion polymerization are provided. The ATRP emulsion polymerization comprises a suspending medium, a dispersed medium, a surfactant, a transition metal compound in a higher oxidation state, a ligand, and an ATRP initiator. The transition metal compound is capable of forming a catalyst complex in a presence of the ligand. The catalyst complex is soluble in the suspending medium and is capable of forming an ionic complex with the surfactant. The ionic complex is capable of moving between the suspending medium and the dispersed medium. A portion of the transition metal compound in the higher oxidation state within a portion of the catalyst complex is reduced by a physical and/or a chemical procedure thereby initiating a polymerization of one or more radically (co)polymerizable monomers by reaction with the initiator. 1. An Atom Transfer Radical Polymerization (ATRP) emulsion system comprising:a suspending medium and a dispersed medium;a surfactant;a transition metal compound in a higher oxidation state capable of forming a catalyst complex in a presence of a ligand containing at least two heteroatom containing groups that coordinate with the transition metal compound;the catalyst complex is soluble in the suspending medium and is capable of forming an ionic complex with the surfactant;the ionic complex is capable of moving between the suspending medium and the dispersed medium;an ATRP initiator comprising one or more radically transferable atoms or groups; anda portion of the transition metal compound in the higher oxidation state within a portion of the catalyst complex is reduced by a physical and/or a chemical procedure thereby initiating a polymerization of one or more radically (co)polymerizable monomers by reaction with the ATRP initiator.2. The system of claim 1 , wherein the suspending medium is an aqueous medium and the dispersed medium is an organic medium.3. The system of claim 2 , ...

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22-05-2014 дата публикации

SLURRY PHASE POLYMERISATION PROCESS

Номер: US20140142260A1
Принадлежит: INEOS EUROPE AG

A slurry process for the polymerisation of ethylene is disclosed, which takes place in a reactor system comprising one or more reactors in series, having a characteristic such that the average polymerisation productivity [kg PE/kgcata] per unit ethylene per hour aI during operation at any first residence time rI is less than 1.7 (a2r2 −aIrI)/(r2−rI), where a2 is the average polymerisation productivity [kgPE/kgcata] per unit ethylene per hour during operation at any second residence time r2 where r2>rI, a2 and r2 being measured either in the same reactor in the case of a single reactor polymerisation, or in a reactor subsequent to the reactor in which aI and rI are measured in the case where the polymerisation takes place in more than one reactor, and wherein the specific yield of the reactor system is greater than 0.3 tonnes/m, specific yield being the production rate of the final reactor (kg/h) in the reactor system divided by the total volume of all the reactors in the reactor system (m) multiplied by the total residence time in all the reactors in the reactor system (h). Operating the system under the above conditions results in improved productivity/unit ethylene. 115-. (canceled)16. Slurry process for the polymerisation of ethylene in a reactor system comprising one or more reactors in series , having an average polymerisation productivity [kgPE/kgcata] per unit ethylene per hour a1 during operation at any first residence time r1 is less than 1.7 (a2r2−a1r1)/(r2−r1) , where a2 is the average polymerisation productivity [kgPE/kgcata] per unit ethylene per hour during operation at any second residence time r2 where r2>r1 , r2 and the value a2r2 being determined either in the same reactor in the case of a single reactor polymerisation , or in a reactor subsequent to the reactor in which a1 and r1 are measured in the case where the polymerisation takes place in more than one reactor , the residence time r2 and value a2r2 in this latter case corresponding to the ...

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22-05-2014 дата публикации

CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

Номер: US20140142262A1
Принадлежит: Basell Poliolefine Italia S.r.I.

Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) 2. The catalyst component of in which Rto Rgroups are claim 1 , independently claim 1 , hydrogen or C-Calkyl groups.3. The catalyst component of in which Rand Rare selected from C-Calkyl groups.4. The catalyst component of in which Ris selected from C-Clinear or branched alkyl groups and Ris methyl.5. The catalyst component of in which Ris substituted in meta and/or para position.6. The catalyst component of in which the halogen is selected from Cl claim 5 , Br and F.7. The catalyst component of in which the halogen is Cl.8. The catalyst component of in which Ris methyl and Ris a phenyl group substituted with halogen in para position.9. The catalyst component of in which Ris n-butyl and Ris a phenyl group substituted with halogen in meta position.10. The catalyst component according any of the preceding claims in which Rhas an halogen in said meta and/or para position one or more of the other available positions of the ring contain substituents selected from halogens and C-Chydrocarbon groups.11. A catalyst for the (co)polymerization of olefins CH═CHR claim 1 , in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms claim 1 , comprising the product obtained by contacting:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(i) the solid catalyst component according to ;'}(ii) an alkylaluminum compound and,(iii) optionally an external electron-donor compound.12. A process for the (co)polymerization of olefins carried out in the presence of the catalyst according to . The present invention relates to catalyst components for the polymerization of olefins, in particular propylene, comprising a Mg dihalide based support on which are supported Ti atoms and at least an electron donor selected from a specific class of electron donor compounds. The present invention further relates to the catalysts obtained from said components and ...

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10-03-2016 дата публикации

Oligomerisation process

Номер: US20160068622A1
Принадлежит: Queens University of Belfast

This invention relates to base oils for lubricating compositions. In particular, the present invention provides a process for the selective oligomerisation of C 5 to C 20 alpha-olefins to produce polyalphaolefin oligomers with a molecular weight distribution that is suitable for use in lubricant base oils.

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09-03-2017 дата публикации

CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

Номер: US20170066851A1
Принадлежит: BASELL POLIOLEFIINE ITALIA S.R.L.

The present disclosure relates to a solid catalyst component for the (co)polymerization of olefins CH═CHR, in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, comprising Ti, Mg, and Cl, and optionally an electron donor compound selected from the group consisting of ethers, amines, silanes, carbamates ketones, esters of aliphatic acids, alkyl and aryl esters of optionally substituted aromatic polycarboxylic acids, diol derivatives chosen among monoesters monocarbamates and monoesters monocarbonates or mixtures thereof, comprising from 0.1 to 50% wt of Bi with respect to the total weight of the solid catalyst component. 1. A solid catalyst component for the (co)polymerization of olefins CH═CHR , in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms , comprising Ti , Mg , and Cl , and optionally comprising an electron donor compound selected from the group consisting of ethers , amines , silanes , carbamates ketones , esters of aliphatic acids , alkyl and aryl esters of optionally substituted aromatic polycarboxylic acids , diol derivatives chosen among monoesters monocarbamates and monoesters monocarbonates or mixtures thereof , comprising from 0.1 to 50% by weight of bismuth (Bi) with respect to the total weight of the solid catalyst component.2. The solid catalyst component of claim 1 , in which the amount of Bi ranges from 0.5 to 40% by weight.3. The solid catalyst component of claim 2 , in which the amount of Bi ranges from 0.5 to 20% by weight.4. The solid catalyst component of claim 3 , in which the amount of Bi ranges from 1 to 20% by weight.5. The solid catalyst component of claim 1 , in which the Bi atoms are derived from one ore more Bi halide compounds.7. The catalyst component according to claim 5 , in which the internal donor is selected from alkyl and aryl esters of optionally substituted aromatic polycarboxylic acids claim 5 , the Mg/Ti molar ratio is equal to or higher than 13 claim 5 , and the Mg/donor ratio is ...

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29-05-2014 дата публикации

CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS AND CATALYSTS THEREFROM OBTAINED

Номер: US20140148564A1
Принадлежит: BASELL POLIOLEFINE ITALIA S.R.L.

Catalyst components for the polymerization of olefins CH2=CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising Mg, Ti, Cl and a diol or a derivative thereof. A process for the use of catalyst components for the polymerization of olefins CH2=CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising Mg, Ti, Cl and a diol or a derivative thereof. 1. Catalyst component for the polymerization of olefins CH2=CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms , comprising Mg , Ti , Cl and an aliphatic or alicyclic diol or derivative thereof.2. The catalyst component according to in which the diol is selected from aliphatic diols substituted with hydrocarbon groups having from 1 to 20 carbon atoms.3. The catalyst component according to in which the diol is selected from 1 claim 2 ,3 claim 2 , 1 claim 2 ,4 and 1 claim 2 ,5 diols comprising a C3-05 linear chain bearing C1-C15 alkyl or C3-C15 aryl claim 2 , arylalkyl or alkylaryl substituents.4. The catalyst component according to in which the diol is selected from 1 claim 3 ,3 propane diols bearing one or more substituent in position 2.5. The catalyst component according to in which the diol is selected from 1 claim 3 ,5 diols bearing one or more substituent in position 3.6. The catalyst component according to in which the diol is selected from 1 claim 3 ,4 diols substituted in positions 2 and 3.7. The catalyst component according to in which the amount of Ti atoms ranges from 3.5 to 8% wt.8. The catalyst component according to further containing aluminum atoms in amount such as the Mg/Al molar ratio ranges from 1 to 35.9. Catalyst for the polymerization of olefins CH2=CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms claim 1 , comprising the product of the reaction between (a) the solid catalyst component according to any of the preceding claims and (b) one or more Al-alkyl compounds.10. The catalyst according ...

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29-05-2014 дата публикации

HIGH PERFORMANCE ZIEGLER-NATTA CATALYST SYSTEMS, PROCESS FOR PRODUCING SUCH MGCL2 BASED CATALYSTS AND USE THEREOF

Номер: US20140148566A1
Принадлежит: LUMMUS NOVOLEN TECHNOLOGY GMBH

Improved Ziegler-Natta catalysts and methods of making the improved catalyst are described. The Ziegler-Natta catalyst is formed using a spherical MgCl-xROH support, where R is a linear, cyclic or branched hydrocarbon unit with 1-10 carbon atoms and where ROH is an alcohol or a mixture of at least two different alcohols and where x has a range of about 1.5 to 6.0, preferably about 2.5 to 4, more preferably about 2.9 to 3.4, and even more preferably 2.95 to 3.35. The Ziegler-Natta catalyst includes a Group 4-8 transition metal and an internal donor comprising a diether compound. The catalyst has improved activity in olefin polymerization reactions as well as good stereoregularity and hydrogen sensitivity, and may be useful in the production of phthalate-free propylene polymers having a molecular weight distribution (PI(GPC)) in the range from about 5.75 to about 9. 1. An MgCl-based catalyst system comprising a diether internal electron donor and having an activity and hydrogen response suitable for the production of propylene polymers having a molecular weight distribution (PI(GPC)) in the range from about 5.75 to about 9.2. A process for producing a Ziegler-Natta catalyst for the polymerization of olefins comprising the steps of:{'sub': '2', 'a. combining a spherical spray-cooled MgCl-xROH support, wherein x is in the range of from about 1.5 to about 6.0 and ROH is an alcohol or a mixture of alcohols where R is a linear, cyclic, or branched hydrocarbon unit with 1-10 carbon atoms, with a transition metal compound in a reactor at a temperature of between about −30° C. and +40° C.;'}b. heating the mixture in the reactor to a temperature of between about 30° C. to about 100° C.;c. concurrent with the heating in step (b), or following reaching the temperature of step (b), adding an internal electron donor comprising a diether compound to the mixture in the reactor;d. heating the resulting mixture to at least about 80° C., if necessary, and holding the resulting mixture ...

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24-03-2022 дата публикации

METHODS OF PREPARING A CATALYST

Номер: US20220089794A1
Принадлежит:

A method of preparing a catalyst comprising a) contacting a non-aqueous solvent, a carboxylic acid, and a chromium-containing compound to form an acidic mixture; b) contacting a titanium-containing compound with the acidic mixture to form a titanium treatment solution; c) contacting a pre-formed silica-support comprising from about 0.1 wt. % to about 20 wt. % water with the titanium treatment solution to form a pre-catalyst; and d) thermally treating the pre-catalyst to form the catalyst. A method of preparing a catalyst comprising a) contacting a non-aqueous solvent and a carboxylic acid to form an acidic mixture; b) contacting a titanium-containing compound with the acidic mixture to form a titanium treatment solution; c) contacting a pre-formed chrominated silica-support comprising from about 0.1 wt. % to about 20 wt. % water with the titanium treatment solution to form a pre-catalyst; and d) thermally treating the pre-catalyst to form the catalyst. 1. A method of preparing a catalyst comprising:a) contacting a non-aqueous solvent and a carboxylic acid to form an acidic mixture wherein a volume ratio of non-aqueous solvent to carboxylic acid is from about 1:1 to about 100:1;b) forming a titanium treatment solution by contacting a titanium-containing compound with the acidic mixture of step a;c) contacting a pre-formed silica-support comprising from about 0.1 wt. % to about 20 wt. % water with the titanium treatment solution to form a titanated support;d) contacting the titanated support with a chromium-containing compound to form a pre-catalyst; ande) thermally treating the pre-catalyst to form the catalyst.2. The method of wherein the carboxylic acid comprises a Cto Ccarboxylic acid.3. The method of wherein the carboxylic acid comprises a Cto Ccarboxylic acid4. The method of wherein the carboxylic acid comprises a Cto Ccarboxylic acid.5. The method of wherein the carboxylic acid comprises formic acid claim 1 , acetic acid claim 1 , propionic acid claim 1 , or a ...

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14-03-2019 дата публикации

PROCESS FOR MAKING A NANOCOMPOSITE AND A POLYETHYLENE NANOCOMPOSITE MADE THEREFROM

Номер: US20190077942A1

Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology. 1: A method for forming a high-density polyethylene nanocomposite by polymerizing a mixture of ethylene and a calcium zirconate nanofiller , comprising:adding a zirconocene catalyst, the calcium zirconate nanofiller and a solvent to a reactor;mixing the zirconocene catalyst and the calcium zirconate nanofiller in the solvent;injecting ethylene into the reactor until absorption of ethylene is no longer observed; followed byadding a methylaluminoxane cocatalyst into the reactor to from a catalyst mixture; thenpolymerizing the ethylene by pressurizing the reactor with ethylene and maintaining a pressure of 1-1.5 bar to form a polymerization mixture; and thenquenching the polymerization mixture with methanol to form the high-density polyethylene nanocomposite;wherein the calcium zirconate nanofiller is dispersed in a polyethylene matrix of the high-density polyethylene nanocomposite, and the polyethylene matrix has a melting temperature of 132.3 to 134.0° C. determined by DSC,wherein the calcium zirconate nanofiller is not a support material for the zirconocene catalyst.2: The method of claim 1 , wherein the calcium zirconate nanofiller is present in an amount of from 0.02 to 3.0 wt. % per total weight of the high-density polyethylene nanocomposite produced.3. (canceled)4: The method of claim 1 , wherein the solvent is toluene.5: The method of claim 4 , wherein the zirconocene catalyst has a concentration of from 10 to 30 μmol in toluene.6: The method of claim 4 , wherein the methylaluminoxane cocatalyst is ...

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14-03-2019 дата публикации

POLYMERIZATION PROCESS FOR MAKING A POLYETHYLENE NANOCOMPOSITE

Номер: US20190077943A1

Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology. 1: Polymerization process for forming a high-density polyethylene nanocomposite by polymerizing a mixture of ethylene and a calcium zirconate nanofiller , comprising:adding a zirconocene catalyst, the calcium zirconate nanofiller and a solvent to a reactor;mixing the zirconocene catalyst and the calcium zirconate nanofiller in the solvent;injecting ethylene into the reactor until absorption of ethylene is no longer observed; followed byadding a methylaluminoxane cocatalyst into the reactor to from a catalyst mixture: thenpolymerizing the ethylene by pressurizing the reactor with ethylene and maintaining a pressure of 1-1.5 bar to form a polymerization mixture; thenadding methanol to the polymerization mixture to quench the polymerization mixture and to form a quenched polymerization mixture; thenwashing the quenched polymerization mixture with methanol and drying under vacuum to form the high-density polyethylene nanocomposite;wherein the calcium zirconate nanofiller is dispersed in a polyethylene matrix of the high-density polyethylene nanocomposite, andthe calcium zirconate nanofiller is not a support material for the zirconocene catalyst.23-. (canceled)4: The process of claim 1 , wherein the solvent is toluene.5: The process of claim 4 , wherein the zirconocene catalyst has a concentration of from 10 to 30 μmol in toluene.67-. (canceled)8: The process of claim 1 , wherein the polymerizing is carried out at a temperature of from 25 to 35° C.910-. (canceled)11: The process of claim 1 , wherein the average ...

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25-03-2021 дата публикации

Methods of recycling and reshaping thermosetting polymers and composites thereof

Номер: US20210087353A1
Принадлежит: Georgia Tech Research Corp

Various methods of reshaping and recycling thermoset polymers and composites containing thermoset polymers are provided. The methods involve the bond exchange reaction of exchangeable covalent bonds in the polymer matrix with a suitable small molecule solvent in the presence of a catalyst. In some aspects, the methods are applied to a carbon fiber reinforced polymer or a thermoset polymer where the thermoset polymer matrix includes a plurality of ester bonds. Using a small molecule alcohol, the methods provide for recycling one or both of the carbon fiber and the polymer, for welding two surfaces, or for repairing a damaged surface in the materials.

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29-03-2018 дата публикации

POLYMERIZATION OF MICHAEL-TYPE MONOMERS

Номер: US20180086858A1
Принадлежит:

A process for precision polymerization is described using a system of a Lewis acid, a Lewis base and a Michael-type monomer that can form a frustrated triple, wherein a Michael-type monomer, optionally dissolved in an organic solvent, is reached with a Lewis acid to form at least one zwitterionic type complex, a Lewis base is added to form a frustrated triple with the zwitterionic type complex which initiates the polymerization reaction, and the reaction is continued to form a polymer. 2. Process according to claim 1 , wherein the at least one Michael-type monomer is polymerized in the presence of a frustrated Lewis pair of a Lewis acid and a Lewis base claim 1 , wherein the monomer has the formula C(RR)═C(R)—C(O)—OR claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Rare independently selected from the group consisting of hydrogen claim 1 , methyl claim 1 , aryl claim 1 , heteroaryl and a bulky group claim 1 , and wherein at least one of Rto Ris the bulky group claim 1 , or wherein the monomers are aerylonitrile claim 1 , vinylsulfonates claim 1 , vinylpyridines or vinylphosphonates wherein the process comprises that the monomer is contacted with the catalyst.3. Process according to claim 1 , wherein the Lewis acid is triphenyl aluminum claim 1 , trimethyl aluminum claim 1 , tri-isobutyl aluminum claim 1 , or aluminum isopropoxide.4. Process according to claim 1 , wherein the Lewis base is trime-thylphosphine claim 1 , triethylphosphine or tricyclohexylphosphine.5. Process according to claim 1 , wherein the molar ratio of Lewis base/Lewis acid is in a range between 0.1-0.5:1.6. Process according to claim 1 , wherein the molar ratio of monomer/catalyst system is 1 claim 1 ,000 to 15 claim 1 ,000.7. Process according to claim 1 , wherein the process is carried out at a temperature between −115° C. and +150° C.8. Process according to claim 1 , wherein the monomer is acrylonitrile or tert.-butylmethacrylate.9. Process according to claim 1 , wherein the monomer ...

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19-03-2020 дата публикации

A TITANIUM-ORGANIC FRAMEWORK MATERIAL

Номер: US20200087328A1
Принадлежит:

This patent mentioned the synthesis of new metal-organic framework based on hexameric titanium-oxo cluster. The novel material, termed MOF-902, was successfully synthesized and its crystal structure uncovered the 2-Dimensional (2D) layer structure generated by the link of trigonal prism TiO(OMe)(—COO)clusters and imine linear linking units. The permanent porosity of MOF-902 is 400 mg. The band gap energy of this material was found to be 2.5 eV which is suitable to catalyze the polymerization reaction of methacrylate monomers under visible irradiation. 1. A metal organic framework material , MOF-902 , possessing 2D layer structure comprises Ti-oxo clusters and imine linking units; wherein every titanium atom links directly to a methoxide group (—OCH); and wherein the Ti-oxo clusters connected together through the imine linking units containing (HC═N—) linkage.2. The metal organic framework material according to further contains staggered layers which is infinite two-dimensional structure.3. The metal organic framework material according to further contains staggered layers claim 1 , wherein the distance between two layers of the material is about 3.9(7) Å claim 1 , having tolerance range of ±0.7; and wherein a second layer of the material moving a certain distance leading to place the Ti-oxo clusters in the center of triangular pores of the first layer providing a hexagonal pore size about 16.1(2) Å with a tolerance range of ±0.2.4. The metal organic framework material according to claim 1 , wherein the bonding distribution in Ti-oxo cluster of the material is Ti—O—Ti—O—Ti—O.5. The metal organic framework material according to claim 4 , wherein the Ti—O linkage is a covalent bond; and wherein the distance of the Ti—O linkage is approximately 1.87(7) Å with a tolerance range of ±0.07.6. The metal organic framework material according to claim 1 , wherein the Ti-oxo clusters bind together via an imine linking unit which possesses imine functionality (HC═N—) claim 1 , ...

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09-04-2015 дата публикации

MODIFIED PHOSPHINIMINE CATALYSTS FOR OLEFIN POLYMERIZATION

Номер: US20150099856A1
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound. 1. A polymerization process to make an ethylene copolymer , the process comprising contacting ethylene and at least one alpha olefin with a polymerization catalyst in a gas phase reactor , the polymerization catalyst comprising: i) a phosphinimine catalyst , ii) an inert support , iii) a cocatalyst , and iv) a catalyst modifier;{'sup': 1', '2', '1', '2, 'sub': x', '2', 'n', 'y, 'wherein the catalyst modifier is present in from 0.25 to 6.0 weight percent based on the weight of i), ii) and iii) of the polymerization catalyst and comprises a compound having the formula: RRN((CH)OH)where Ris a hydrocarbyl group having from 5 to 30 carbon atoms, Ris hydrogen or a hydrocarbyl group having from 1 to 30 carbon atoms, x is 1 or 0; when x is 1, y is 1 and n is an integer from 1 to 30; when x is 0, y is 2 and each n is independently an integer from 1 to 30;'}{'sub': 3', '2, 'wherein the phosphinimine catalyst has the formula: (L)((t-Bu)P═N)TiX, where L is a cyclopentadienyl ligand, a substituted cyclopentadienyl ligand, an indenyl ligand, or a substituted indenyl ligand; and X is an activatable ligand; and'}wherein the process further comprises feeding the catalyst modifier to the gas phase reactor in an amount of 50 ppm or less based on the weight of the ethylene copolymer produced.2. The process of wherein the catalyst modifier present in the polymerization catalyst and fed to the gas phase reactor comprises at least one compound represented by the formula: RN((CH)OH)((CH)OH) where Ris a hydrocarbyl group having from 5 to 30 carbon atoms claim 1 , and n and m are integers from 1 to 20.3. The process of wherein the catalyst modifier present in the polymerization catalyst and fed to the gas phase reactor comprises at least one compound represented by the formula: RN((CH)OH)where Ris a hydrocarbyl group having from 6 to 30 carbon ...

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12-05-2022 дата публикации

Methods of Preparing a Catalyst

Номер: US20220144982A1
Принадлежит:

A hydrogel comprising water, and a plurality of titanium-silica-chromium nanoparticle agglomerates, wherein each titanium-silica-chromium nanoparticle agglomerate is an agglomeration of titanium-silica-chromium nanoparticles, the agglomerates having an average titanium penetration depth designated x with a coefficient of variation for the average titanium penetration depth of less than about 1.0 wherein a silica content of the hydrogel is of from about 10 wt. % to about 35 wt. % based on a total weight of the hydrogel. 1. A precatalyst prepared by(a) forming a hydrogel comprising (i) water and (ii) an agglomeration of titanium-silica-chromium nanoparticle, wherein each titanium-silica-chromium nanoparticle agglomerate is an agglomeration of titanium-silica-chromium nanoparticles, the agglomerates having an average titanium penetration depth designated x with a coefficient of variation for the average titanium penetration depth of less than about 1.0 wherein a silica content of the hydrogel is of from about 18 wt. % to about 35 wt. % based on a total weight of the hydrogel; wherein the titanium content is from about 0.15 wt. % to about 1.5 wt. % based on the total weight of the hydrogel; and wherein the chromium content is from about 0.15 wt. % to about 1.2 wt. % based on the total weight of the hydrogel; and(b) dehydrating the hydrogel to form the precatalyst.2. The precatalyst of wherein the dehydrating is carried out in a temperature range of from about 25° C. to about 300° C.3. The precatalyst of having a ratio of titanium X-ray photoelectron spectroscopy 2P signal to silicon X-ray photoelectron spectroscopy 2P signal of equal to or less than about 0.04.4. The precatalyst of having a ratio of titanium X-ray photoelectron spectroscopy 2P signal to silicon X-ray photoelectron spectroscopy 2P signal of equal to or less than about 0.025.5. A polymerization catalyst prepared by(a) forming a hydrogel comprising (i) water and (ii) an agglomeration of titanium-silica- ...

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26-04-2018 дата публикации

Method for producing halogenated isoolefin-based polymer

Номер: US20180112016A1

A method for producing a halogenated isoolefin-based polymer includes irradiating an isoolefin-based polymer including alkylstyrene with light in presence of a halogen molecule. The isoolefin-based polymer has been polymerized by a living cationic polymerization using titanium chloride as a Lewis acid catalyst.

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09-06-2022 дата публикации

PRODUCTION OF HIGH MELT FLOW PROPYLENE-BASED POLYMER AND PRODUCT FROM SAME

Номер: US20220177611A1
Принадлежит: W.R. GRACE & CO.-CONN.

Disclosed are catalyst compositions having an internal electron donor which includes a 3,6-di-substituted-1,2-phenylene aromatic diester. Ziegler-Natta catalyst compositions containing the present catalyst compositions exhibit very high hydrogen response, high activity, high selectivity and produce propylene-based olefins with high melt flow rate. 1. (canceled)3. The procatalyst composition of further comprising a magnesium moiety claim 2 , a titanium moiety.4. The procatalyst composition of claim 3 , wherein the magnesium moiety comprises a magnesium halide.5. The procatalyst composition of claim 2 , wherein Rand Rare the same.6. The procatalyst composition of claim 2 , wherein Rand Rare linear hydrocarbyl.7. The procatalyst composition of claim 2 , wherein Rand Rare methyl.8. The procatalyst composition of claim 2 , wherein at least one of Ror Ris isopropyl claim 2 , tert-butyl claim 2 , 2 claim 2 ,3 claim 2 ,3-trimethylbutan-2-yl claim 2 , cyclopentyl claim 2 , or cyclohexyl.9. The procatalyst composition of claim 2 , wherein Rand Rare linear hydrocarbyl.10. A catalyst composition comprising the procatalyst composition of and a cocatalyst.11. The catalyst composition of claim 10 , wherein the cocatalyst comprises an alkyl aluminum compound.12. The catalyst composition of further comprising an external electron donor.13. The catalyst composition of claim 12 , wherein the external electron donor comprises an alkoxysilane.14. The catalyst composition of claim 12 , wherein the external electron donor comprises dicyclopentyldimethoxysilane claim 12 , di-tert-butyldimethoxysilane claim 12 , methylcyclohexyldimethoxysilane claim 12 , methylcyclohexyldiethoxysilane claim 12 , ethylcyclohexyldimethoxysilane claim 12 , diphenyldimethoxysilane claim 12 , diisopropyldimethoxysilane claim 12 , di-n-propyldimethoxysilane claim 12 , diisobutyldimethoxysilane claim 12 , diisobutyldiethoxysilane claim 12 , isobutylisopropyldimethoxysilane claim 12 , di-n-butyldimethoxysilane ...

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27-04-2017 дата публикации

Method for Preparing Polybutene by Using Catalyst Containing N-Propanol

Номер: US20170114164A1
Принадлежит: Daelim Industrial Co Ltd

Disclosed a method for preparing polybutene by using a catalyst including normal propanol, wherein the polybutene has 40 to 70% of vinylidene content and 10% or more of tetra-substituted double bond content by using a complex catalyst including normal propanol as a cocatalyst and a main catalyst such as boron trifluoride. The method comprises: introducing, to a raw reaction material including 10 wt % or more of isobutene, a complex catalyst including normal propanol as a cocatalyst and boron trifluoride as a main catalyst; and polymerizing the raw reaction material at a reaction temperature of −33 to 33° C. under a reaction pressure of 3 to 50 kg/cm 2 , wherein the vinylidene content is adjusted by adjusting the reaction temperature.

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07-05-2015 дата публикации

ATTRITION RESISTANT CATALYST SYSTEM FOR MANUFACTURE OF POLYOLEFINS

Номер: US20150126694A1
Принадлежит: RELIANCE INDUSTRIES LIMITED

The present invention relates to regular shaped magnesium particles containing attrition resistant precursors and procatalysts thereof and processes for their synthesis and their use in the manufacture of polyolefins. More particularly, the present invention relates to a process for the synthesis of a said precursor particles which give highly active and improved surface area procatalysts for producing high bulk density polyolefin resins containing low fines and capable of incorporating high rubber content. In particular, the present invention relates to process for the synthesis of an attrition resistant precursors to prepare an attrition resistant Zeigler Natta procatalysts synthesized by using the precursors and to the polyolefin resin synthesized using the said procatalysts. 120-. (canceled)211. A process for preparing an attrition resistant procatalyst having increased precursor surface area using magnesium alkoxide based precursor as claimed in claim comprising:{'sub': 4', '4, '(i) treating said magnesium alkoxide based precursor with TiClin presence of a solvent in a mole ratio 5.0 to 20 (TiClto Mg ratio) and one or more internal donors at a reaction temperature in the range of from 80° C. to 150° C.; and'}(ii) obtaining the procatalyst with improved surface area having regular shaped particles.22. The process as claimed in claim 21 , wherein the internal donor is selected from the group consisting of one or more of methyl benzoate claim 21 , ethyl benzoate claim 21 , n-propyl benzoate claim 21 , i-propyl benzoate claim 21 , n-butylbenzoate claim 21 , i-butylbenzoate claim 21 , dimethyl phthalate claim 21 , diethyl phthalate claim 21 , dipropyl phthalate claim 21 , di-isopropyl phthalate claim 21 , di-butyl phthalate and di-isobutyl phthalate claim 21 , other monoesters claim 21 , diesters claim 21 , succinates and diethers.23. The process as claimed in claim 21 , wherein the internal donors are single or multiple.2415. A process for preparing an attrition ...

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25-08-2022 дата публикации

PROCESS FOR HIGH SULFER CONTENT COPOLYMER PREPARATION

Номер: US20220267487A1
Принадлежит: ENI S.P.A.

There is a process for high sulfur content copolymer preparation having the step of reacting sulfur in solid form with at least one crosslinker selected from organic compounds having at least a double or triple bond in the presence of at least one catalyst selected from dithiocarbamates, mercaptobenzothiazoles, xanthates, thiophosphates, at a temperature ranging from 110° C. to 180° C. 1. Process for high sulfur content copolymer preparation comprising reacting sulfur in solid form with at least one crosslinker selected from organic compounds including at least a double or triple bond in the presence of at least one catalyst selected from the group consisting of dithiocarbamates , mercaptobenzothiazoles , xanthates , and thiophosphates , at a temperature ranging from 110° C. to 180° C.2. Process for high sulfur content copolymer preparation according to claim 1 , wherein said sulfur in solid form is elemental sulfur.3. Process for high sulfur content copolymer preparation according to claim 1 , wherein said crosslinker selected from organic compounds including at least a double or triple bond is selected from the group consisting ofethylenically unsaturated monomers selected from the group consisting of linear aliphatic α-olefins; alicyclic olefins and diolefins; conjugated polyenes; bicycle olefins; and aromatic vinyl compounds;alkynic monomers;natural oils; andmixtures thereof.4. Process for high sulfur content copolymer preparation according to claim 3 , wherein said crosslinker selected from organic compounds including at least a double or triple bond selected from the group consisting of myrcene claim 3 , 1 claim 3 ,7-octadiene claim 3 , grapeseed oil claim 3 , and 3-di-iso-propenylbenzene (DIB).5. Process for high sulfur content copolymer preparation according to claim 1 , wherein said dithiocarbamates are selected from the group consisting of zinc N-dimethyldithiocarbamate (ZnDEC) claim 1 , zinc N-diethyldithiocarbamate (ZnDEC) claim 1 , zinc N- ...

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31-07-2014 дата публикации

HIGH ACTIVITY OLEFIN POLYMERIZATION CATALYST COMPRISING BORON-CONTAINING SILICA SUPPORT AND THE PREPARATION THEREOF

Номер: US20140213438A1

The present invention relates to a high activity olefin polymerization catalyst comprising a boron-containing silica support and the preparation thereof. This invention is characterized in that the support is heat treated in combination with a chemical treatment using a boron compound. The boron compound used in the chemical treatment of this invention is boron halide, preferably boron trichloride. The catalyst of this invention has the weight of boron comparing with the support is 0.5 to 0.7% and has the weight of the boron relative to the catalyst of 0.1 to 0.5%. The catalyst of this invention has chemical compositions comprising:—Boron 0.1-0.5% wt;—Titanium 4-6% wt;—Magnesium 2-6% wt;—Chloride 15-25% wt. 1. A high activity olefin polymerization catalyst comprising a boron-containing silica support , characterized in that the support is heat treated in combination with a chemical treatment using a boron compound wherein the weight of boron relative to the support is 0.5 to 0.7%.2. The catalyst according to claim 1 , wherein the boron compound is boron halide.3. The catalyst according to claim 1 , wherein the boron compound is boron trichloride.4. (canceled)5. The catalyst according to claim 1 , wherein the weight of boron relative to the catalyst is 0.1 to 0.5%.7. A preparation process of a high activity olefin polymerization catalyst comprising a boron-containing silica support claim 1 , the process comprising the following steps:(a) treating the silica with heat under an inert atmosphere;(b) chemically treating the silica obtained from (a) using a boron compound to achieve the boron-containing silica support; and(c) preparing the catalyst from the silica support obtained from (b) wherein the catalyst has the weight of boron relative to the support is 0.5 to 0.7%.8. The preparation process of the catalyst according to claim 7 , wherein the boron compound is boron halide.9. The preparation process of the catalyst according to claim 7 , wherein the boron compound ...

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21-05-2015 дата публикации

CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

Номер: US20150141594A1
Принадлежит: Basell Poliolefine Italia S.r.I.

A catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) 2. The catalyst according to in which when all the Rgroups are hydrogen the R groups are independently chosen among linear C-Calkyl groups.3. The catalyst according to in which R groups are selected from C-Clinear alkyl groups.4. The catalyst component according to in which the sum of n+m is 2.5. The catalyst component according to in which both n and m are 1.6. The catalyst component according to in which Rand Rare selected from hydrogen and C-Calkyl groups.7. The catalyst component according to in which Rand Rare not simultaneously alkyl groups.8. The catalyst component according to in which Rand Rare hydrogen.9. The catalyst component according to in which Rgroups claim 1 , independently claim 1 , are selected from hydrogen claim 1 , halogen or C-Chydrocarbon groups optionally forming one or more saturated cycles.10. The catalyst component according to in which at least one of Ris selected from halogen or C-Calkyl groups.11. The catalyst component according to in which the halogen is Cl and the alkyl group is a C-Cbranched alkyl group.12. The catalyst component according to in which two of the Rgroups are linked to form a cyclic group condensed with the benzene ring of formula (I).13. A catalyst for the polymerization of olefins CH═CHR claim 9 , in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms claim 9 , comprising the product obtained by contacting:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(i) the solid catalyst component according to and'}(ii) an alkylaluminum compound and optionally,(iii) an external electron donor compound.14. The catalyst according to in which the external electron donor is selected silicon compounds of formula (R)(R)Si(OR) claim 13 , where a and b are integers from 0 to 2 claim 13 , c is an integer from 1 to 4 and the sum (a+b+c) is 4; R claim 13 , R claim 13 , and R claim 13 , ...

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14-08-2014 дата публикации

METHOD FOR PRODUCING A SUSPENSION-TYPE ANTI-TURBULENT ADDITIVE DECREASING HYDRODYNAMIC RESISTANCE OF HYDROCARBON LIQUIDS

Номер: US20140228529A1

The invention produces suspensions of higher α-olefins without using cryogenic comminution as well as without using polymer precipitation by adding a non-solvent to a polymer solution. Fine polymer dispersions are produced by thermal re-precipitation of a polymer in a liquid being a non-solvent for that polymer at room temperature and being capable of dissolving the polymer at a higher temperature. The polymer component of a suspension is produced by co-polymerization of higher α-olefins in a monomer mass in the presence of a Ziegler-Natta catalyst. 1producing a finely comminuted polymer solvable in hydrocarbon liquids, having a high molecular weight, and synthesized by co-polymerization of higher α-olefins with number of carbon atoms from 6 to 16 under the action of a Ziegler-Natta catalyst,comminuting a bulk polymerization product at ambient temperature as a co-polymer of higher α-olefins, andthermal re-precipitating in a liquid for producing a finely dispersed suspension of the polymer by heating up to temperatures above 60° C., wherein said liquid being a non-solvent for the polymer at room temperature and solving the polymer at a higher temperature.. A method for producing an anti-turbulent additive of a suspension type for decreasing hydrodynamic resistance of hydrocarbon liquids, the method comprising the steps of: Not applicable.Not applicable.Not applicable.1. Field of the InventionThe proposed invention relates to the field of pipeline transportation of liquid hydrocarbons, in particular to methods for decreasing their hydrodynamic resistance.2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98.Recently, polymeric anti-turbulent additives (ATAs) are used for increasing transmission capacity of oil and oil-product pipelines. They represent a solution or a polymeric suspension in a liquid medium. A polymer should be soluble in a transported liquid and have a high molecular weight. Another pre-requisite for the ...

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02-06-2016 дата публикации

Supported Catalyst for Olefin Polymerization, Preparation Method and Use Thereof

Номер: US20160152738A1

A supported catalyst for olefin polymerization, a preparation method and use thereof. The catalyst comprises a porous carrier A, a magnesium-containing carrier B, and a supported active component containing a transitional metal of titanium. The catalyst is a highly efficient Ziegler-Natta titanium-based catalyst having a composite support formed by a magnesium compound and a silicon compound, wherein the raw material for the magnesium compound may be any soluble magnesium salt. The supported catalyst may be used for preparing olefin homopolymers or olefin copolymers. According to the present invention, the molecular weight, molecular weight distribution of the olefin homopolymer or olefin copolymer as well as the contents and distribution of the comonomers may be adjusted conveniently by means of changing the factors such as types and amounts of organometallic co-catalyst and molecular weight regulator. 1. A supported olefin polymerization catalyst , wherein said catalyst mainly comprises: porous support as carrier A , magnesium-containing compound support as carrier B and supported transition metal active component containing titanium.2. The catalyst according to claim 1 , wherein said support A is one or more selected from silica claim 1 , alumina claim 1 , aluminosilicate (xAlO.ySiO) claim 1 , titania claim 1 , zirconia claim 1 , magnesium oxide claim 1 , calcium oxide claim 1 , inorganic clays and combinations thereof.3. The catalyst according to claim 1 , wherein said support B is a kind of magnesium compound of general formula RMgCl claim 1 , wherein claim 1 , Ris C-Calkyl group which selected from saturated or unsaturated straight-chain claim 1 , branched or cyclic chain claim 1 , 0≦m<2.4. The catalyst according to claim 1 , wherein said titanium transition metal is titanium compound claim 1 , such as Ti(L)Cl claim 1 , Ti(L)Clor Ti(L)Cl claim 1 , wherein claim 1 , Lis C-Calkyl group Ror alkyl oxide group RO claim 1 , Ris selected from saturated or unsaturated ...

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15-09-2022 дата публикации

POLYMERIZATION PROCESS WITH A BORANE-AMINE COMPLEX

Номер: US20220289873A1
Принадлежит:

The invention relates to a process for polymerizing at least one radically polymerizable compound having at least one ethylenic bond in the presence of a borane complex BH3 with an amine as a radical initiator, said process comprising the steps of: providing a borane complex BH3 with an amine; and bringing the complex into contact with a composition comprising at least one radically polymerizable compound having at least one ethylenic bond; wherein the polymerization is performed in the absence of an oxidizing agent and/or an additional radical initiator other than the borane complex BH3 with an amine. The invention also relates to a composition comprising at least one radically polymerizable compound having at least one ethylenic bond and a borane complex BH3 with an amine, wherein the composition is free of an oxidizing agent and/or an additional radical initiator other than the borane complex BH3 with an amine, as well as the use of said composition as an adhesive for bonding two substrates together. 115-. (canceled)18. The process as claimed in claim 16 , wherein the radically polymerizable compound is selected from the group consisting of a styrene claim 16 , vinyl claim 16 , acrylic claim 16 , and methacrylic monomer claim 16 , and combinations thereof.19. The process as claimed in claim 16 , wherein the complex of borane BHwith an amine is present at a content by mass of 0.01% to 25% claim 16 , relative to the mass of the radically polymerizable compound.20. The process as claimed in claim 16 , wherein the radically polymerizable compound has a content by mass of 5% to 100% claim 16 , relative to the total mass of the composition.21. The process as claimed in claim 16 , comprising a heating step after bringing the complex into contact with the composition comprising at least one polymerizable compound.22. The process as claimed in claim 21 , wherein the heating step is carried out at a temperature of 20 to 100° C.23. The process as claimed in claim 16 , ...

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17-06-2021 дата публикации

EPDM Terpolymer and Manufacturing Method Therefor

Номер: US20210179750A1
Принадлежит:

A method can be used for manufacturing an ethylene-propylene-diene terpolymer for a fuel cell. A polymerization step includes subjecting an organic chelate compound forming a coordinate bond, a vanadium-based Ziegler-Natta catalyst, an organoaluminum compound, and ethylene, propylene, and diene monomers, together with a solvent, to polymerization in a reactor. A separation step includes recovering residual catalysts and unreacted monomers from the stream discharged from the reactor. An acquisition step includes recovering the solvent from the stream deprived of the residual catalysts and unreacted monomers to acquire the ethylene-propylene-diene terpolymer. 1. An ethylene-propylene-diene terpolymer formed by polymerization of an organic chelate compound forming a coordinate bond , a vanadium-based Ziegler-Natta catalyst , an organoaluminum compound , and ethylene , propylene , and diene monomers.2. The ethylene-propylene-diene terpolymer of claim 1 , wherein the organic chelate compound is adapted to make one ligand form a coordinate bond with a metal ion at two or more sites therein to form a complex ion or a complex.3. The ethylene-propylene-diene terpolymer of claim 2 , wherein the organic chelate compound comprises at least one of acetyl ether claim 2 , alkyl dioate claim 2 , or alkylglycol acetate.4. The ethylene-propylene-diene terpolymer of claim 1 , wherein the organic chelate compound and the vanadium-based Ziegler-Natta catalyst have a molar ratio of 0.2-0.7.5. The ethylene-propylene-diene terpolymer of claim 1 , wherein the organoaluminum compound and the vanadium-based Ziegler-Natta catalyst have a molar ratio of 5.0-8.0 of organoaluminum compound to vanadium-based Ziegler-Natta catalyst.6. The ethylene-propylene-diene terpolymer of claim 1 , wherein the ethylene-propylene-diene terpolymer has a catalyst efficiency of at least 500 g/g-cat.7. The ethylene-propylene-diene terpolymer of claim 1 , wherein the ethylene-propylene-diene terpolymer has a total ...

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23-05-2019 дата публикации

Aqueous Methods for Titanating A Chromium/Silica Catalyst

Номер: US20190151826A1
Принадлежит: Chevron Phillips Chemical Co LP

Methods for synthesizing a water-soluble titanium-silicon complex are disclosed herein. The titanium-silicon complex can be utilized to produce titanated solid oxide supports and titanated chromium supported catalysts. The titanated chromium supported catalysts subsequently can be used to polymerize olefins to produce, for example, ethylene based homopolymer and copolymers.

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07-06-2018 дата публикации

Olefin Polymerization Catalyst Systems and Methods for Making the Same

Номер: US20180155459A1
Принадлежит:

Borate activated catalyst systems and methods for making the same for gas phase or slurry phase olefin polymerization are provided. The catalyst system can include a first catalyst comprising a borate activated mono cyclopentadienyl metallocene compound and a second catalyst comprising a supported bis cyclopentadienyl metallocene complex. A supported bis cyclopentadienyl metallocene complex can be prepared to provide a preformed, supported catalyst, wherein the supported bis cyclopentadienyl metallocene complex comprises bis(1,3-methylbutyl cyclopentadienyl) zirconium dichloride. The preformed, supported catalyst can be mixed with mineral oil or hydrocarbon solvent to form a slurry. The slurry can be mixed with a borate activated mono cyclopentadienyl metallocene compound to form the borate activated catalyst system. 1. A polymerization catalyst system comprising the product of:a first catalyst comprising the product of a borate activator and mono cyclopentadienyl metallocene compound; anda second catalyst comprising a supported bis cyclopentadienyl metallocene complex.2. The catalyst system of claim 1 , wherein the first catalyst is about 0.5 wt % to about 1 wt % of the total weight of the catalyst system.3. The catalyst system of claim 1 , wherein the borate activator comprises tris perfluorophenyl borane.4. The catalyst system of claim 1 , wherein the mono cyclopentadienyl metallocene compound comprises [(MeCp)SiMe(NtBu)]TiMe.5. The catalyst system of claim 1 , wherein the supported bis cyclopentadienyl metallocene complex comprises bis(1 claim 1 ,3-methylbutyl cyclopentadienyl) zirconium dichloride.6. The catalyst system of claim 5 , wherein the supported bis cyclopentadienyl metallocene complex is activated with methyl alumoxane.7. The catalyst system of claim 1 , wherein the supported bis cyclopentadienyl metallocene complex is supported on silica.8. The catalyst system of claim 1 , wherein:(a) the borate activator comprises tris perfluorophenyl borane;{'sub': ...

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01-07-2021 дата публикации

PROCESS FOR PREPARING RANDOM BUTADIENE-ISOPRENE COPOLYMERS HAVING A HIGHT CONTENT OF CIS-1,4 UNITS

Номер: US20210198404A1
Принадлежит:

Process for preparing a random butadiene-isoprene copolymer having a high content of cis-1,4 units comprising copolymerizing butadiene and isoprene, in the presence of at least one organic solvent, and a catalytic system prepared in situ comprising: (a) at least one neodymium carboxylate soluble in said organic solvent, containing a variable amount of water, the H2O/Nd molar ratio being between 0.001/1 and 0.50/1; (a) at least one aluminum alkyl compound; (a) at least one aluminum alkyl compound containing at least one halogen atom. The random butadiene-isoprene copolymer having a high content of cis-1,4 units obtained from the abovementioned process may be advantageously used in a number of applications ranging from the modification of plastics [for example, obtainment of high impact polystyrene (HIPS)], to the production of tires, in particular the production of tire treads and/or of tire sidewalls. 1. A process for the preparation a random butadiene-isoprene copolymer having a high content of cis-1 ,4 units comprising copolymerizing butadiene and isoprene in the presence of at least one organic solvent and of a catalytic system prepared in situ comprising:{'sub': 1', '2, '(a) at least one neodymium carboxylate which is soluble in said organic solvent, containing a variable amount of water, the HO/Nd molar ratio being between 0.001/1 and 0.50/1;'}{'sub': '2', '(a) at least one aluminum alkyl compound;'}{'sub': '3', '(a) at least one aluminum alkyl compound containing at least one halogen atom.'}2. The process for the preparation of a random butadiene-isoprene copolymer having a high content of cis-1 claim 1 ,4 units according to claim 1 , in which said butadiene and said isoprene are present in a total amount (i.e. butadiene amount+isoprene amount) between 5% by weight and 40% by weight with respect to the total weight of the organic solvent.3. The process for the preparation of a random butadiene-isoprene copolymer having a high content of cis-1 claim 1 ,4 units ...

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28-06-2018 дата публикации

ALDIMINES AND KETIMINES AS INITIATORS IN HARDENER SYSTEMS AND CORRESPONDING RESIN COMPOSITIONS INTER ALIA FOR FIXING TECHNOLOGY

Номер: US20180179304A1
Принадлежит:

A hardener system for a synthetic resin composition having free-radical-polymerisable compounds, which includes the following constituents: a) at least one activator in the form of a metal salt, and as free-radical starter b1) (i) at least one aldehyde and/or ketone and at least one primary amine, and/or b2) (ii) at least one aldimine or (iii) at least one ketimine, or a mixture of two or more of constituents (i) to (iii). In addition, synthetic resin compositions having such a hardener system for application especially in fixing technology, and subject matters related thereto. 118.-. (canceled)21. The hardener system according to claim 19 , wherein (b2) the imine which includes one or more imine structural increments of the formula (I) includes one or more aldimines and no ketimine.23. The hardener system according to claim 19 , wherein (b2) the imine which includes one or more imine structural increments of the formula (I) includes one or more aldimines as a reaction product of isobutyraldehyde and 3-aminopropyl-trimethoxysilane; of isobutyraldehyde and m-xylylenediamine; of isobutyraldehyde and 1 claim 19 ,3-bis(aminomethyl)-cyclohexane; of isobutyraldehyde and Jeffamine D230; of isobutyraldehyde and isophoronediamine; of isobutyraldehyde and Jeffamine DER-148; of isobutyraldehyde and diethyltoluenediamine; and of isobutyraldehyde and cyclohexane-1 claim 19 ,2-diamine; or mixtures of two or more of those reaction products.25. The hardener system according to claim 19 , wherein the activator in the form of a metal salt comprises one or more salts of organic and/or inorganic acids with metals claim 19 , and the free-radical starter comprises: the at least one aldehyde and/or ketone is a compound which has at least one or more primary and secondary hydrogen atoms at the carbon atom in the α-position to the carbonyl group,', 'and the at least one primary amine comprises one or more mono-, di- and poly-amines, heteroalkyl- or heteroalkylene-(mono- or di-)amines, amine ...

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09-07-2015 дата публикации

ORGANOMETALLIC COMPOUND IN SOLID FORM, PROCESS FOR PREPARING THE SAME AND USE THEREOF

Номер: US20150191553A1
Принадлежит:

The present invention provides a solid organomagnesium precursor having formula {Mg(OR′)X}.a{MgX}.b{Mg(OR′)}.c{R′OH}, wherein R′ is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.01-0.5:0.01-0.5:0.01-5 and process for preparing the same, said process comprising contacting a magnesium source with a solvating agent, an organohalide and an alcohol to obtain the solid organomagnesium precursor. The present invention also provides a process for preparing a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins. The organomagnesium precursor is prepared as follows: At 0° C., magnesium in diethyl ether is reacted with the organohalide. After all magnesium has reacted, the calculated amount of alcohol was added and after the completion of addition, the ether was evaporated and a solid compound obtained. 1. A process for preparation of a solid organomagnesium precursor having formula {Mg(OR′)X}.a{MgX}.b{Mg(OR′)}.c{R′OH} , wherein R′ is selected from a hydrocarbon group , X is selected from a halide group , and a:b:c is in range of 0.01-0.5:0.01-0.5:0.01-5 , said process comprising contacting a magnesium source with a solvating agent , an organohalide and an alcohol to obtain the solid organomagnesium precursor ,wherein the solvating agent is selected from a group comprising of dimethyl ether, diethyl ether, dipropyl ether, diisopropyl ether, ethylmethyl ether, n-butylmethyl ether, n-butylethyl ether, di-n-butyl ether, di-isobutyl ether, isobutylmethyl ether, and isobutylethyl ether, dioxane, tetrahydrofuran, 2-methyl tetrahydrofuran, tetrahydropyran and combination thereof.2. The process as claimed in claim 1 , wherein the process is carried out in a single step or multiple steps.3. The process as claimed in claim 1 , wherein the alcohol is added after the reaction of magnesium source with solvating agent and organohalide.4. The process as claimed in claim 1 , wherein the ...

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18-09-2014 дата публикации

Methods of Preparing a Polymerization Catalyst

Номер: US20140275458A1
Принадлежит: CHEVRON PHILLIPS CHEMICAL COMPANY LP

A method comprising contacting a silica support material with a sulfating agent to form a sulfated silica support material comprising sulfate anions; thermally treating the sulfated silica support material to form a thermally treated sulfated silica support material; contacting the thermally treated sulfated silica support material with a chromium-containing compound to form a mixture; and thermally treating the mixture to form a polymerization catalyst. A method comprising thermally treating a silica support material to form a thermally-treated silica support material; contacting the thermally-treated silica support material with a sulfating agent to form a thermally treated sulfated silica support material; thermally treating the thermally treated sulfated silica support material to form a processed silica support material; contacting the processed silica support material with a chromium-containing compound to form a precursor polymerization catalyst; and thermally treating the precursor polymerization catalyst to form a polymerization catalyst. 1. A method comprising:contacting a silica support material with a sulfating agent to form a sulfated silica support material comprising sulfate anions;thermally treating the sulfated silica support material to form a thermally treated sulfated silica support material;contacting the thermally treated sulfated silica support material with a chromium-containing compound to form a mixture; andthermally treating the mixture to form a polymerization catalyst.2. The method of wherein thermally treating the sulfated silica support material comprises heating the sulfated silica support material to a temperature of from about 300° C. to about 900° C. for a time period of from about 1 min to about 24 hours.3. The method of wherein thermally treating the mixture comprises heating the mixture to a temperature of from about 400° C. to about 800° C. for a time period of from about 30 min to about 15 hours in an oxygen-containing ...

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20-06-2019 дата публикации

Solution polymerization process

Номер: US20190185590A1
Принадлежит: Nova Chemicals International SA

A solution polymerization process uses a reactor system in which a first stage is operated in a non adiabatic (cooled) manner and is connected to a second stage containing a downstream reactor that is operated adiabatically. In an embodiment, the first reactor stage includes at least one loop reactor and the second stage includes a tubular reactor. In an embodiment, the first stage is operated with a single site catalyst and at least one downstream reactor uses a Ziegler Natta catalyst.

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23-07-2015 дата публикации

Catalyst for polymerization of olefins and process thereof

Номер: US20150203604A1
Принадлежит: Indian Oil Corp Ltd

The present invention provides a process for preparation of a solid titanium catalyst component for use as pro-catalyst for a Ziegler-Natta catalyst system. The solid titanium catalyst component comprises a combination of 15 to 20 wt % of a magnesium moiety, 1.0 to 6.0 wt % of a titanium moiety and 5.0 to 20 wt % of an internal donor, said solid titanium catalyst component has an average particle size in the range of 1 to 100 μm, characterized by a three point particle size distribution of D10 in the range of 1 to 10 μm; D50 in the range of to 25 μm and D90 in the range of 15 to 50 μm. The present invention also provides a 15 Ziegler-Natta catalyst system comprising the solid titanium catalyst component and the method of polymerizing and/or copolymerizing olefins by using the Ziegler-Natta catalyst system.

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23-07-2015 дата публикации

Long Chain Branched Polymers and Methods of Making Same

Номер: US20150203614A1
Принадлежит: Chevron Phillips Chemical Co LP

A polymer having a long chain branching content peaking at greater than about 20 long chain branches per million carbon atoms, and a polydispersity index of greater than about 10 wherein the long chain branching decreases to approximately zero at the higher molecular weight portion of the molecular weight distribution. A polymer having a long chain branching content peaking at greater than about 8 long chain branches per million carbon atoms, a polydispersity index of greater than about 20 wherein the long chain branching decreases to approximately zero at the higher molecular weight portion of the molecular weight distribution. A polymer having a long chain branching content peaking at greater than about 1 long chain branches per chain, and a polydispersity index of greater than about 10 wherein the long chain branching decreases to approximately zero at the higher molecular weight portion of the molecular weight distribution.

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30-07-2015 дата публикации

Catalyst on silica clad alumina support

Номер: US20150210784A1
Принадлежит: W. R Grace & Co.-Conn.

The invention concerns catalysts comprising (i) a clad catalyst support comprising (a) a core which comprises alumina particles and (b) about 1 to about 40 weight percent silica cladding, based on the weight of the clad catalyst support, on the surface of the core; the catalyst support having a BET surface area of greater than 20 m/g and a porosity of at least about 0.2 cc/g; and (ii) 0.1 to 10 weight percent, based on the weight of the catalyst, of catalytically active transition metal on the surface of the clad catalyst support; wherein the catalyst support has a normalized sulfur uptake (NSU) of up to 25 μg/m. The invention also concerns the production and use of such catalyst. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. A process for making a catalyst comprising:{'sup': 2', '2, 'contacting (a) a catalyst support, which comprises a core of alumina particles and about 1 to about 40 weight percent silica cladding, based on the weight of said clad catalyst support, on the surface of said core, said clad catalyst support having a BET surface area of greater than 20 m/g; a porosity of at least about 0.2 cc/g; and a Normalized Sulfur Uptake (NSU) value of up to 25 μg/m; with (b) a solution comprising a salt or other soluble compound of at least one transition metal in an inert liquid to produce an unactivated catalyst; and treating said unactivated catalyst with a heated gas to produce an activated catalyst.'}20. (canceled)21. The process of claim 19 , wherein said salt comprises (i) chromium acetate or chromium nitrate alone or with (ii) titanium salt or compound.22. (canceled)23. (canceled)24. (canceled)25. A process for making an olefin polymerization catalyst comprising:{'sup': 2', '2, "forming a clad catalyst support comprising (a) alumina particulate core ...

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02-10-2014 дата публикации

Catalyst Compositions for the Polymerization of Olefins

Номер: US20140296453A1
Принадлежит:

Catalyst compositions containing N,N-bis[2-hydroxidebenzyl]amine transition metal compounds are disclosed. Methods for making these transition metal compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided. 117-. (canceled)19. The process of claim 18 , wherein the process is conducted in a batch reactor claim 18 , slurry reactor claim 18 , gas-phase reactor claim 18 , solution reactor claim 18 , high pressure reactor claim 18 , tubular reactor claim 18 , autoclave reactor claim 18 , or a combination thereof.20. The process of claim 18 , wherein the olefin monomer comprises ethylene or propylene.21. The process of claim 18 , wherein the olefin monomer comprises ethylene claim 18 , and the olefin comonomer comprises 1-butene claim 18 , 1-hexene claim 18 , 1-octene claim 18 , or a mixture thereof.22. The process of claim 18 , wherein the olefin polymer has a Mgreater than about 1 claim 18 ,000 claim 18 ,000 g/mol.23. The process of claim 18 , wherein:{'sup': 1', '2, 'sub': 1', '18, 'Xand Xindependently are a halide or a Cto Chydrocarbyl group;'}{'sup': B', 'C, 'sub': 1', '18', '1', '18, 'each Rand Rindependently is a halide, a Cto Chydrocarbyl group, or a Cto Chydrocarbylsilyl group, wherein p and q independently are 0, 1, or 2;'}{'sup': 'A', 'sub': 1', '18, 'Ris a Cto Chydrocarbyl group;'}the activator-support comprises a fluorided solid oxide, a sulfated solid oxide, or a combination thereof; andthe olefin monomer comprises ethylene or propylene.24. The process of claim 23 , wherein:the catalyst composition comprises a co-catalyst; and{'sub': 'w', 'the olefin polymer has a Min a range from about 2,000,000 to about 7,000,000 g/mol.'}25. The process of claim 23 , wherein:M is Zr or Hf;{'sup': 1', '2, 'Xand Xindependently are a halide, methyl, benzyl, or phenyl;'}{'sup': B', 'C, 'sub': 1', '5, 'each Rand Rindependently is a Cto Calkyl group;'}the process is conducted in a slurry reactor, gas-phase reactor, ...

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04-07-2019 дата публикации

Aqueous Methods for Titanating A Chromium/Silica Catalyst

Номер: US20190201872A1
Принадлежит:

Methods for synthesizing a water-soluble titanium-silicon complex are disclosed herein. The titanium-silicon complex can be utilized to produce titanated solid oxide supports and titanated chromium supported catalysts. The titanated chromium supported catalysts subsequently can be used to polymerize olefins to produce, for example, ethylene based homopolymer and copolymers. 111-. (canceled)12. A titanated chromium supported catalyst comprising:a solid support; andfrom about 0.5 to about 15 wt. % chromium, from about 1 to about 10 wt. % titanium, and less than or equal to about 1 wt. % carbon, based on the total weight of the catalyst;wherein at least about 75 wt. % of the chromium is present in an oxidation state of three or less; and a total pore volume from about 0.5 to about 5 mL/g;', {'sup': '2', 'a BET surface area from about 200 to about 700 m/g; and'}, 'a d50 average particle size from about 10 to about 500 microns., 'wherein the titanated chromium supported catalyst is characterized by1323-. (canceled)24. A titanated chromium supported catalyst comprising:a solid support; andfrom about 0.1 to about 15 wt. % chromium, from about 1 to about 10 wt. % titanium, and less than or equal to about 3 wt. % carbon, based on the total weight of the catalyst;wherein at least about 75 wt. % of the chromium is present in an oxidation state of three or less.25. The titanated chromium supported catalyst of claim 24 , wherein the catalyst contains from about 0.5 to about 5 wt. % chromium claim 24 , from about 1 to about 6 wt. % titanium claim 24 , and less than or equal to about 1 wt. % carbon.26. The titanated chromium supported catalyst of claim 24 , wherein at least about 90 wt. % of the chromium is present in an oxidation state of three or less.27. The titanated chromium supported catalyst of claim 24 , wherein the catalyst is a titanated chromium/silica catalyst.28. The titanated chromium supported catalyst of claim 24 , wherein the catalyst is characterized by:a total ...

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26-07-2018 дата публикации

PREPARATION METHOD OF ANIONIC POLYMERIZATION INITIATOR, DEVICE FOR MANUFACTURING ANIONIC POLYMERIZATION INITIATOR AND ANIONIC POLYMERIZATION INITIATOR PREPARED THEREFROM

Номер: US20180208684A1
Принадлежит: LG CHEM, LTD.

An method for preparing an anion polymerization initiator, a device for preparing the same and an anion polymerization initiator prepared therefrom are provided. And the method for preparing an anion polymerization initiator according to present invention is characterized in that an amine compound of Formula 1 and/or Formula 2; an organometallic compound; and/or a conjugated diene compound are introduced in the form of a solution and reacted. 3. The method for preparing an anionic polymerization initiator according to claim 1 , characterized in thatthe organometallic compound comprises at least one selected from the group consisting of an organic alkali metal compound and an organic alkaline earth metal compound.4. The method for preparing an anionic polymerization initiator according to claim 1 , further comprisinga step of supplying a conjugated diene compound to the continuous reactor after the step of reacting the at least one amine compound selected from compounds of said Formulas 1 and 2 and the organometallic compound.5. The method for preparing an anionic polymerization initiator according to claim 1 , characterized in thata molar ratio of the at least one amine compound selected from compounds of said Formulas 1 and 2 and the organometallic compound is 5:1 to 1:5.6. The method for preparing an anionic polymerization initiator according to claim 4 , characterized in thata molar ratio of the at least one amine compound selected from compounds of said Formulas 1 and 2 and the conjugated diene compound is 1:1 to 1:100.7. A device for preparing an anionic polymerization initiator characterized in that it comprisesa mixer; anda first inflow line and a second inflow line, connected to said mixer,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the first inflow line supplies at least one amine compound selected from compounds of Formulas 1 and 2 according to , and the second inflow line supplies an organometallic compound.'}8. The device for preparing an ...

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04-07-2019 дата публикации

BULKPOLYMERISATION PROCESS FOR THE PREPARATION OF POLYDIENES

Номер: US20190202944A1
Принадлежит:

The present invention is directed at a bulkpolymerisation process for the preparation of a polymer (P) comprising the steps of: (i) providing at least one diene monomer (DM) and optionally at least one comonomer (COM); (ii) contacting the at least one diene monomer (DM) and optionally the at least one comonomer (COM) with a catalyst system (CS) forming a reaction mixture (RM); (iii) polymerizing the reaction mixture (RM) comprising the at least one diene monomer (DM) and optionally the at least one comonomer (COM) in at least one reactor vessel (RV); (iv) isolating the polymer (P) obtained from the at least one reactor vessel (RV); wherein the reaction mixture (RM) comprises solvent, diluent and/or dispersant in an amount of ≤10 wt.-%, based on the weight of the reaction mixture (RM); and wherein the conversion rate of the diene monomer (DM) and optionally the comonomer (COM) is ≥80%. 1. Bulkpolymerisation process for the preparation of a polymer (P) comprising the steps of:(i) providing at least one diene monomer (DM) and optionally at least one comonomer (COM);(ii) contacting the at least one diene monomer (DM) and optionally the at least one comonomer (COM) with a catalyst system (CS) forming a reaction mixture (RM);(iii) polymerizing the reaction mixture (RM) comprising the at least one diene monomer (DM) and optionally the at least one comonomer (COM) in at least one reactor vessel (RV);(iv) isolating the polymer (P) obtained from the at least one reactor vessel (RV);wherein the reaction mixture (RM) comprises solvent, diluent and/or dispersant in an amount of ≤10 wt.-%, based on the weight of the reaction mixture (RM);wherein the conversion rate of the diene monomer (DM) and optionally the comonomer (COM) is ≥80%; andwherein the reaction mixture (RM) comprises the at least one diene monomer (DM) in an amount of ≥50.0 wt.-%.2. Bulkpolymerisation process according to claim 1 , wherein the diene monomer (DM) is a conjugated diene selected from 1 claim 1 ,3- ...

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13-08-2015 дата публикации

AMORPHOUS PROPYLENE-ETHYLENE COPOLYMERS

Номер: US20150225490A1
Принадлежит: EASTMAN CHEMICAL COMPANY

Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives. 1. A process for producing a copolymer , said process comprising:reacting propylene and ethylene in the presence of a catalyst system comprising an electron donor to form said copolymer,wherein said copolymer has a softening point in the range of 90 to 140° C., {'br': None, 'i': y≦−', 'x', 'x', 'x', 'x', 'x', 'x−, '0.0000002622496+0.0001720312785−0.0466697201654+6.7017467794383−537.2860133319592+22,802.983472587400,204.018086126'}, 'wherein said copolymer has a needle penetration that is equal to y, wherein y is defined by the following formulawherein x in the above formula is the softening point of said copolymer.2. The process of claim 1 , wherein said electron donor comprises an alkyoxy silane.3. The process of claim 1 , wherein said alkoxy silane comprises dicyclopentyldimethoxysilane or cyclohexylmethyldimethoxysilane.4. The process of claim 1 , wherein said catalyst system has a molar ratio of aluminum to silicon in the range of 1:1 to 100.5. The process of claim 1 , wherein said catalyst system comprises an alkyl aluminum co-catalyst (TEAL) claim 1 , wherein said catalyst system comprises a molar ratio of said TEAL to said electron donor in the range of 1:1 to 50:1.6. The process of claim 1 , wherein said needle penetration is in the range of 10 to 30 dmm.7. The process of claim 1 , wherein the weight ratio of propylene to ethylene in said copolymer is in the range of 1:1 to 5:1. 1. Field of the InventionThe present invention is generally related to amorphous propylene-ethylene ...

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18-07-2019 дата публикации

Polymerization Process

Номер: US20190218319A1
Автор: Pannell Richard B.
Принадлежит:

A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including propane and isobutane under polymerizable conditions to produce a polyolefin polymer is provided. 1. A polymerization process , the process comprising contacting one or more monomers , at least one catalyst system , and a condensing agent , wherein a majority of the condensing agent comprises propane and isobutane , under polymerizable conditions to produce a polyolefin polymer.2. The process of claim 1 , wherein the production rate of the polyolefin polymer is at least 5% greater than the same process polymerizing with a condensing agent consisting essentially of isopentane.3. The process of claim 1 , wherein the polyolefin density (ASTM D1505) is ≤0.912 g/cmand the space time yield is >14.0 lb/ft/hr (224. kg/m/hr).4. The process of claim 1 , wherein the space time yield is >17.5 lb/ft/hr (280. kg/m/hr).5. The process of claim 1 , wherein the production rate when producing a polyolefin polymer having density ≤0.912 g/cmis ≥80% of the production rate when producing a polyolefin polymer having a density ≥0.918 g/cm claim 1 , density measured by ASTM D1505.6. The process of claim 1 , wherein the reactor pressure is from 20 to 29 barg.7. The process of claim 1 , wherein the reactor pressure is from 20 to 26 barg.8. The process of claim 1 , wherein the reactor pressure is from 20 to 25 barg.9. The process of claim 1 , wherein the molar ratio of isobutane to propane in the condensing agent is from 0.1 to 10.10. The process of claim 1 , wherein the condensing agent comprises ≥10 mol % isobutane and <90 mol % propane.11. The process of claim 1 , wherein the condensing agent comprises ≥10 mol % propane and <90 mol % isobutane.12. The process of claim 1 , wherein the condensing agent further comprises at least one additional C-Ccondensing agent.13. The process of claim 11 , wherein the at least one additional C-Ccondensing agent comprises n-butane claim 11 , n- ...

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19-08-2021 дата публикации

Process for preparing high-reactivity isobutene homo- or copolymers

Номер: US20210253752A1
Принадлежит: BASF SE

The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 80 mol %. The present invention further relates to novel isobutene polymers.

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03-09-2015 дата публикации

Low temperature cure polymerization initiator

Номер: US20150246979A1
Принадлежит: Elantas PDG Inc

A polymerization initiator system for reactive monomers and unsaturated polymers which is contains a Group 4 transition metal or Group 4 transition metal-containing compound, peroxide or diazo compound that is capable of being reduced by the Group 4 transition metal or Group 4 transition metal-containing compound, and pinacol compound is disclosed. Further disclosed are methods for preparing the polymerization initiator and using the polymerization initiator for low temperature curing.

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23-08-2018 дата публикации

Heterocyclic Organic Compounds as Electron Donors for Polyolefin Catalysts

Номер: US20180237552A1
Принадлежит:

Heterocyclic organic compounds are used as electron donors in conjunction with solid Ziegler-Natta type catalyst in processes in which polyolefins such as polypropylene are produced. The electron donors may be used in the preparation of solid catalyst system, thus serving as “internal electron donors,” or they may be employed during or prior to polymerization with the co-catalyst as “external electron donors.” 2. The solid catalyst component of claim 1 , wherein Rcontains at least one heteroatom selected from the group consisting of B claim 1 , Si claim 1 , and halogen atoms.3. The solid catalyst component of claim 1 , wherein the backbone of the bridging groups is selected from the group consisting of aliphatic claim 1 , alicyclic claim 1 , and aromatic radicals.4). The solid catalyst component of claim 1 , wherein either A or Acannot be connected to a nitrogen atom to form a carbon nitrogen double bond when the backbone of R group is a single carbon atom.5. The solid catalyst component of claim 1 , wherein R′ and Ris selected from the group consisting of hydrogen claim 1 , methyl claim 1 , and ethyl.6. The solid catalyst component of claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , and Rindependently comprise C-Clinear and/or branched substituents.7. The solid catalyst component of claim 1 , wherein two or more of said R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , and Rmay be linked to form one or more saturated or unsaturated monocyclic or polycyclic rings.8. The solid catalyst component of claim 1 , wherein at least one of a carbon atom or hydrogen atom of R may be replaced by a heteroatom selected from the group consisting of O claim 1 , N claim 1 , S claim 1 , P claim 1 , B claim 1 , Si claim 1 , and halogen atoms claim 1 , wherein O claim 1 , N claim 1 , S claim 1 , and P can only be embedded in the backbone of the bridging groups.9. The solid catalyst component of claim 1 , wherein at least one of a ...

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23-07-2020 дата публикации

Catalyst composition for polymerizing polyolefin, method for producing polyolefin, and polyolefin resin

Номер: US20200231717A1
Принадлежит: Daelim Industrial Co Ltd

A catalyst composition for polymerizing a polyolefin having excellent processability and impact strength, a process for producing a polyolefin and a polyolefin resin thereof are disclosed. The catalyst composition comprises at least one first organometallic compound of following formula 1; at least one second organometallic compound of following formula 2; and aluminoxane. The polyolefin resin satisfies following properties (i) to (iv) and (vi), (i) melt flow index (ASTM D1238), measured at 190° C., under a load of 2.16 kg: 0.1 to 1.5 g/10 min, (ii) density: 910 to 930 kg/m 3 , (iii) the ratio (Mw/Mn), as measured by gel permeation chromatography (GPC):3.0 to 7.0, (iv) the ratio (Mz/Mw), as measured by GPC: 2.2 to 4.5, and (vi) when the TREF curve of multimodal distribution is deconvoluted, the area of TREF curve having a peak at 50 to 74° C. is 40 to 75% of the total area of the TREF curve.

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31-08-2017 дата публикации

FREE-RADICAL POLYMERIZATION METHODS AND ARTICLES THEREBY

Номер: US20170246660A1
Принадлежит:

A method of curing a curable composition includes: providing the curable composition; providing a substrate having a primer disposed on at least a portion thereof, wherein the primer comprises at least one immobilized polyvalent metal compound for free-radically curing the curable composition; and contacting the curable composition with the primer, thereby causing at least partial curing of the curable composition. The curable composition includes at least one free-radically polymerizable compound and a beta-dicarbonyl compound. The method can be used for adhesive bonding of substrates and preparation of various articles. 120to . (canceled)22. The method of claim 21 , wherein the curable composition is essentially free of organic peroxide.23. The method of claim 21 , wherein the curable composition further comprises an organic peroxide.24. The method of claim 21 , wherein the curable composition further comprises a quaternary ammonium halide.25. The method of claim 21 , wherein the beta-dicarbonyl compound comprises 1 claim 21 ,3-dialkylbarbituric acid or a derivative thereof.26. The method of claim 21 , wherein the at least one polyvalent metal compound comprises at least one of copper (II) claim 21 , iron (II) claim 21 , iron (III) claim 21 , cobalt (II) claim 21 , cobalt (III) claim 21 , manganese (II) claim 21 , and manganese (III).27. The method of claim 21 , wherein the at least one free-radically polymerizable compound comprises a free-radically polymerizable polyfunctional (meth)acrylate.28. The method of claim 21 , wherein the primer layer comprises an organic polymer.29. The method of claim 21 , wherein the substrate comprises a polarizer.31. The article of claim 30 , wherein the reaction product contacts a second substrate claim 30 , and wherein the reaction product is at least partially disposed between the glass substrate and the second substrate.32. The article of claim 31 , wherein the second substrate comprises glass.33. The article of claim 31 , ...

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31-08-2017 дата публикации

RUBBER COMPOSITON FOR TIRES

Номер: US20170247479A1
Принадлежит: ZEON CORPORATION

A rubber composition for a tire containing a cyclopentene ring-opening polymer and a solution polymerized styrene-butadiene rubber. The rubber composition is a cross-linked rubber with excellent wet grip and low heat buildup properties. 1. A rubber composition for a tire , comprising a cyclopentene ring-opening polymer and a solution polymerized styrene-butadiene rubber.2. The rubber composition for a tire according to claim 1 , wherein an amount of bonded styrene in the solution polymerized styrene-butadiene rubber is 5 wt % or more and 50 wt % or less.3. The rubber composition for a tire according to claim 2 , wherein the amount of bonded styrene in the solution polymerized styrene-butadiene rubber is 5 wt % or more and 30 wt % or less.4. The rubber composition for a tire according to claim 1 , wherein a content ratio of the cyclopentene ring-opening polymer and the solution polymerized styrene-butadiene rubber in terms of a weight ratio of (cyclopentene ring-opening polymer: solution polymerized styrene-butadiene rubber) is 5:95 to 90:10.5. The rubber composition for a tire according to claim 1 , wherein the cyclopentene ring-opening polymer includes an end functional group-containing cyclopentene ring-opening polymer in which a functional group is introduced to an end of a polymer chain.6. The rubber composition for a tire according to claim 5 , wherein the end functional group-containing cyclopentene ring-opening polymer contains an oxysilyl group as the functional group at an end of a polymer chain.7. The rubber composition for a tire according to claim 1 , wherein the solution polymerized styrene-butadiene rubber is a modified solution polymerized styrene-butadiene rubber in which a hydroxyl group or an amino group is introduced as a modified group.9. The rubber composition for a tire according to claim 1 , further comprising a silica in a ratio of 1 part by weight or more and 200 parts by weight or less with respect to 100 parts by weight of a rubber ...

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31-08-2017 дата публикации

PROCESS FOR THE PREPARATION OF COPOLYMERS OF PROPYLENE

Номер: US20170247480A1
Принадлежит: Borealis AG

A process for the preparation of a copolymer of propylene and ethylene comprising polymerising propylene and ethylene in the gas phase in the presence of a solid particulate catalyst free from an external carrier comprising: (i) a symmetrical complex of formula (I), wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R′C—, —R′C—CR′—, —R′Si—, —R′Si—SiR′—, —R′Ge—, wherein each R′ is independently a hydrogen atom, C1-C20-alkyi, tri(C1-C20-aikyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; Ris a C1-C20 hydrocarbyl radical; m is 2 to 5; Ris a H or C1-C20 hydrocarbyl radical; Ris a hydrogen atom or a C-hydrocarbyl radical; n is 0 to 3; Ris a C1-C20 hydrocarbyl radical and optionally two adjacent Rgroups taken together can form a further mono or multicyclic ring condensed to Ph ring optionally substituted by one or two groups R; and Ris a C1-C10 alkyl radical; and (ii) a cocatalyst, preferably comprising an organometallic compound of a Group 13 metal; wherein the xylene soluble fraction of the propylene ethylene copolymer has an ethylene content of at least 10 wt % and an intrinsic viscosity of at least 1.2 dl/g. 2. A process as claimed in wherein the catalyst used is in solid particulate form free from an external carrier.3. A process as claimed wherein the catalyst is obtainable by a process in which(a) a liquid/liquid emulsion system is formed, said liquid/liquid emulsion system comprising a solution of the catalyst components (i) and (ii) dispersed in a solvent so as to form dispersed droplets; and(b) solid particles are formed by solidifying said dispersed droplets.4. A process as claimed in wherein the catalyst is prepared by obtaining a complex of formula (I) and a cocatalyst;forming a liquid/liquid emulsion system, which comprises a solution of catalyst components (i) and (ii) dispersed in a solvent, and solidifying said dispersed droplets to form solid particles.5. A process as claimed in wherein the ...

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20-11-2014 дата публикации

SOLID CATALYST COMPONENT FOR POLYMERIZATION OF OLEFIN, CATALYST FOR POLYMERIZATION OF OLEFIN, AND METHOD FOR PRODUCING OLEFIN POLYMER

Номер: US20140343237A1
Принадлежит: TOHO TITANIUM CO., LTD.

A solid catalyst component for olefin polymerization includes titanium, magnesium, a halogen, and a compound represented by the following formula (1): RO—C(═O)—O—Z—OR, and an olefin polymerization catalyst includes the solid catalyst component, an organoaluminum compound, and an optional external electron donor compound. An olefin polymer that has a moderate molecular weight distribution while maintaining high stereoregularity can be produced by utilizing the solid catalyst component and the olefin polymerization catalyst. 2. The solid catalyst component according to claim 1 , wherein Z is a linear alkylene group comprising 1 to 20 carbon atoms claim 1 , a branched alkylene group comprising 3 to 20 carbon atoms claim 1 , a vinylene group claim 1 , a linear or branched alkenylene group comprising 3 to 20 carbon atoms claim 1 , a linear halogen-substituted alkylene group comprising 1 to 20 carbon atoms claim 1 , a branched halogen-substituted alkylene group comprising 3 to 20 carbon atoms claim 1 , a linear or branched halogen-substituted alkenylene group comprising 3 to 20 carbon atoms claim 1 , a cycloalkylene group comprising 3 to 20 carbon atoms claim 1 , a cycloalkenylene group comprising 3 to 20 carbon atoms claim 1 , a halogen-substituted cycloalkylene group comprising 3 to 20 carbon atoms claim 1 , a halogen-substituted cycloalkenylene group comprising 3 to 20 carbon atoms claim 1 , an aromatic hydrocarbon group comprising 6 to 24 carbon atoms claim 1 , a halogen-substituted aromatic hydrocarbon group comprising 6 to 24 carbon atoms claim 1 , a nitrogen atom-comprising hydrocarbon group comprising 1 to 24 carbon atoms claim 1 , an oxygen atom-comprising hydrocarbon group comprising 1 to 24 carbon atoms claim 1 , a phosphorus-comprising hydrocarbon group comprising 1 to 24 carbon atoms claim 1 , or a silicon-comprising hydrocarbon group comprising 1 to 24 carbon atoms.3. The solid catalyst component according to claim 1 , whereinZ is a linear alkylene group ...

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30-07-2020 дата публикации

Methods of Preparing a Catalyst

Номер: US20200239608A1
Принадлежит:

A method of preparing a catalyst support comprising contacting an acid-soluble titanium-containing compound with an acid to form a first mixture; contacting the first mixture with an alkali metal silicate to form a hydrogel which has a silica content of from about 18 wt. % to about 35 wt. % based on the total weight of the hydrogel; contacting the hydrogel with an alkaline solution to form an aged hydrogel; washing the aged hydrogel to form a washed hydrogel; and drying the washed hydrogel to produce a titanium-containing-silica support wherein the support has a pore volume equal to or greater than about 1.4 cm/g. 1. A titanium-containinghydrogel composition comprising:a) a hydrogel having a silica content of from about 18 wt. % to about 35 wt. % based on a total weight of the hydrogel;b) water; andc) titanium.2. The titanium-containing hydrogel composition of claim 1 , wherein an amount of titanium is in a range of from about 0.1 wt. % to about 10 wt. % based upon the total weight of the hydrogel.3. The titanium-containing hydrogel composition of having a pH of less than about 6.4. The titanium-containing hydrogel composition of having a pH of less than about 6.5. The titanium-containing hydrogel composition of having a pore volume equal to or greater than about 1.4 cm/g.6. The titanium-containing hydrogel composition of having a pore volume equal to or greater than about 1.4 cm/g.7. The titanium-containing hydrogel composition of claim 1 , further comprising chromium in an amount ranging from about 0.1 wt. % to about 10 wt. % based upon the total weight of the hydrogel.8. The titanium-containing hydrogel composition of claim 6 , further comprising chromium in an amount ranging from about 0.1 wt. % to about 10 wt. % based upon the total weight of the hydrogel.9. A reactant composition forming a titanium-containing hydrogel comprising:a) an acid-soluble titanium-containing compound;b) an alkali metal silicate;c) water; andd) an acid,wherein the hydrogel has a silica ...

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07-09-2017 дата публикации

Catalyst Systems and Methods of Making and Using the Same

Номер: US20170253676A1
Принадлежит:

Olefin polymerization catalyst systems and methods for making and using the same are provided. 2. The catalyst system of claim 1 , wherein said silica gel particles have an average surface area of from about 550 to 650 m/g.3. The catalyst system of claim 1 , wherein said silica gel particles have an average pore diameter of from about 80 to 130 angstrom.4. The catalyst system of claim 1 , wherein said silica gel particles have an average pore volume of from about 0.5 to 2.5 ml/g of silica.5. The catalyst system of claim 1 , wherein said silica gel particles have an average particle size of from about 20 to 200 micrometers.6. The catalyst system of claim 1 , wherein at least 50% of the incremental pore volume is comprised of pores having a pore diameter larger than about 100 angstrom.7. The catalyst system of claim 1 , wherein said aluminoxane loading on the support is greater than about 12 mmol Al/g silica.8. The catalyst system of claim 1 , further comprising a metallocene catalyst component.9. The catalyst system of claim 1 , wherein a raw silica surface area and a supported aluminoxane surface area differ by about or less than 10%.10. The catalyst system of claim 1 , wherein a raw silica particle size and a supported aluminoxane particle size differ by about or less than 10% on a volumetric basis.11. The catalyst system of claim 1 , wherein the volume percent of pores with a pore size of from 300 to 1500 angstroms is from 4.0 vol % to 80 vol %.12. The catalyst system of claim 1 , wherein the volume percent of pores with a pore size of from 300 to 1500 angstroms is from 35 vol % to 75 vol %.13. The catalyst system of claim 1 , wherein the volume percent of pores with a pore size of from 300 to 1500 angstroms is from 40 vol % to 75 vol %.15. The method of claim 14 , wherein said silica gel particles have an average surface area of from about 500 to 700 m/g.16. The method of claim 14 , wherein said silica gel particles have an average pore volume of from about 0.5 ...

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14-09-2017 дата публикации

Method for polymerizing ethylene to form a high density polyethylene nanocomposite

Номер: US20170260376A1

Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.

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04-12-2014 дата публикации

PROPYLENE RANDOM COPOLYMER

Номер: US20140357816A1
Принадлежит:

Propylene random copolymers with low randomness and being free of from catalyst originating phthalates. 1. Propylene random copolymers comprising ,{'sub': 4', '20, 'a) a comonomer selected from ethylene, C-C-alpha olefin, and any combination thereof'}b) a comonomer content in the range of 1.5 to at most 5.0 wt %c) a randomness in the range of 60% to at most 80%d) a xylene soluble (XS) content of 2 to <12 wt %,the propylene random copolymers being free of from catalyst originating phthalates.2. Propylene random copolymers according to claim 1 , whereina) the comonomer is ethyleneb) the comonomer content is in the range of 2.0 to 4.9 wt %c) the randomness is in the range of 65% to 80%d) a xylene soluble (XS) content of 3.0 to <11.5 wt %,the propylene random copolymers being free of from catalyst originating phthalates.3. Process for preparing propylene random copolymers according to claim 1 , said propylene random copolymers being produced by copolymerising propylene with a comonomer selected from ethylene claim 1 , C-C-alpha olefin claim 1 , and any combination thereof using a catalyst system comprising a co-catalyst and optionally an external electron donor and an olefin polymerisation catalyst component in the form of solid particles being produced bya) preparing a solution of at least one alkoxy compound (Ax) being the reaction product of at least one compound of a Group 2 metal with at least a monohydric alcohol (A) in an organic liquid reaction medium,b) adding said solution to at least one compound of a transition metal andc) preparing the solid catalyst component particles,wherein an internal electron donor selected from benzoates, alkylene glycol dibenzoates, maleates, 1-cyclohexene-1,2-dicarboxylic dialkylester, and 1,3-ethers, or a mixture of any selected donors, or a corresponding precursor is added at any step prior to step c).5. Process according to claim 3 , wherein the alkoxy compound (Ax) is a reaction product of at least one compound of Group 2 metal ...

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22-09-2016 дата публикации

Low emission propylene homopolymer

Номер: US20160272741A1
Принадлежит: Borealis AG

Propylene homopolymer with reduced emission value.

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28-10-2021 дата публикации

Novel Transition Metal Compound and Method of Preparing Polypropylene Using the Same

Номер: US20210332075A1
Принадлежит: LG CHEM, LTD.

Provided are a novel transition metal compound of the following Chemical Formula 1 that exhibits excellent catalytic activity, allows formation of a macromonomer which is a polymer in which a double bond is formed at the end of a chain, and improves a melt strength characteristic when used in polymerizing polypropylene, and a method of preparing a polypropylene using the same. 2. The transition metal compound of claim 1 , wherein A is silicon and M is zirconium.3. The transition metal compound of claim 1 , wherein Rto Rare each independently linear Calkyl.4. The transition metal compound of claim 1 , wherein all of Rto Rare methyl.5. The transition metal compound of claim 1 , wherein Ris phenyl or naphthyl claim 1 , each of which is unsubstituted or substituted with branched Calkyl.6. The transition metal compound of claim 1 , wherein Ris phenyl claim 1 , 4-t-butylphenyl claim 1 , 3 claim 1 ,5-di-t-butylphenyl claim 1 , or naphthyl.7. The transition metal compound of claim 1 , wherein Rto Rare each independently hydrogen or two adjacent groups of Rto Rcombine with each other to form a cyclopentyl group.8. The transition metal compound of claim 1 , wherein one of Xand Xis S claim 1 , and the other is a single bond.10. A catalyst composition comprising the transition metal compound of .11. The catalyst composition of claim 10 , further comprising at least one selected from a carrier claim 10 , a cocatalyst claim 10 , or an antistatic agent.12. The catalyst composition of claim 11 , wherein the carrier comprises silica.13. The catalyst composition of claim 11 , wherein the cocatalyst comprises one or more of compounds represented by the following Chemical Formulae 4 to 6:{'br': None, 'sub': 11', 'm, '—[Al(R)—O]—\u2003\u2003[Chemical Formula 4]'}in Chemical Formula 4,{'sub': 11', '1-20', '1-20, 'Ris the same as or different from each other, and is each independently halogen; Chydrocarbon; or Chydrocarbon substituted with halogen; and'} {'br': None, 'sub': 12', '3, 'J(R ...

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28-09-2017 дата публикации

METHOD FOR PREPARING TERMINAL-MODIFIED CONJUGATED DIENE POLYMER, TERMINAL-MODIFIED CONJUGATED DIENE POLYMER, RUBBER COMPOSITION AND TIRE

Номер: US20170275400A1
Принадлежит: BRIDGESTONE CORPORATION

This disclosure is to provide a method for preparing a terminal-modified conjugated diene polymer which achieves an extremely high compounding amount of cis-1,4 without complicated preparing conditions, a terminal-modified conjugated diene polymer obtained via the method, a rubber composition containing the terminal-modified conjugated diene polymer, and a tire using the rubber composition. This disclosure is A method for preparing a terminal-modified conjugated diene polymer comprising: polymerizing a conjugated diene compound by using a polymerization catalyst composition and modifying a polymer obtained via the polymerization by using a modifier, wherein the polymerization catalyst composition contains a rare earth element compound, and a coordination compound having a cyclopentadiene skeleton selected from substituted or unsubstituted cyclopentadienes, substituted or unsubstituted indenes, and substituted or unsubstituted fluorenes, and wherein the polymerization and modification is performed in a one-pot way. 1. A method for preparing a terminal-modified conjugated diene polymer comprising: polymerizing a conjugated diene compound by using a polymerization catalyst composition and modifying a polymer obtained via the polymerization by using a modifier ,wherein the polymerization catalyst composition contains a rare earth element compound, and a coordination compound having a cyclopentadiene skeleton selected from substituted or unsubstituted cyclopentadienes, substituted or unsubstituted indenes, and substituted or unsubstituted fluorenes, andwherein the polymerization and modification is performed in a one-pot way.2. The method for preparing a terminal-modified conjugated diene polymer according to claim 1 , wherein the rare-earth element compound is represented by general formula (a-1):{'br': None, 'sup': 1', '2', '3, 'M-(AQ)(AQ)(AQ)\u2003\u2003(a-1)'}{'sup': 1', '2', '3, 'in the formula, M is scandium, yttrium or lanthanides; (AQ), (AQ)and (AQ)are the same ...

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15-10-2015 дата публикации

PROCESS FOR PREPARING AN OLEFIN POLYMERISATION CATALYST COMPONENT WITH IMPROVED HIGH TEMPERATURE ACTIVITY

Номер: US20150291709A1
Принадлежит:

The invention refers to a process for increasing the polymerization activity of a titanium containing catalyst, in particular an olefin polymerization catalyst component in particulate form having an improved high temperature activity and the use thereof in a process for polymerizing olefins. 113.-. (canceled)14. A process for increasing the catalytic activity of an olefin polymerization catalyst component at higher temperatures , comprising the steps of:a) preparing a solution of a complex of a group 2 metal and an electron donor by reacting a compound of said metal with said electron donor or a precursor thereof and an organic liquid reaction medium;b) adding said solution of said complex to at least one titanium compound comprising titanium in the oxidation state of +4 to produce an emulsion having a dispersed phase, the dispersed phase containing more than 50 mol % of the group 2 metal in said complex;c) agitating the emulsion in order to maintain droplets of said dispersed phase within an average size range of from 5 to 200 μm;d) solidifying said droplets of the dispersed phase; ande) recovering the solidified particles to yield the olefin polymerization catalyst component;wherein the increase in activity is achieved by decreasing the amount of titanium present in said solidified particles of the olefin polymerization catalyst component being present in the oxidation state of +4 by adding a reducing agent before recovering the solidified particles of step e).15. The process of claim 14 , wherein the increase in catalytic activity is determined at 80° C. compared to the activity at 70° C.16. The process of claim 14 , wherein the reducing agent is selected from an aluminum compound and a magnesium compound.17. The process of claim 16 , wherein the aluminum compound is an aluminum alkyl compound or an aluminum alkoxy compound claim 16 , and wherein the magnesium compound is an alkyl magnesium compound.18. The process of claim 14 , wherein the solidified particles ...

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15-10-2015 дата публикации

Process for preparing an olefin polymerisation catalyst component with improved high temperature activity

Номер: US20150291712A1
Принадлежит: BOREALIS TECHNOLOGY OY

The invention refers to a process for increasing the polymerization activity of a titanium containing catalyst, in particular an olefin polymerization catalyst component in particulate form having an improved high temperature activity and the use thereof in a process for polymerizing olefins.

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06-10-2016 дата публикации

Chain transfer agent for addition mass polymerization of polycycloolefinic monomers

Номер: US20160289353A1
Принадлежит: PROMERUS LLC

The present invention relates to use of certain chain transfer agents to control molecular weight of addition mass polymerization of certain polycycloolefinic monomers. More specifically, the present invention relates to use of a series of substituted bicycloalkenes as chain transfer agents in the addition mass polymerization of a series of functionalized norbornene-type monomers. This invention also relates to compositions containing bicycloalkenes as chain transfer agents in forming “in mold” polycycloolefinic polymers by addition mass polymerization.

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04-10-2018 дата публикации

METALLOCENE SUPPORTED CATALYST AND METHOD FOR PREPARING POLYOLEFIN USING THE SAME

Номер: US20180282442A1
Принадлежит: LG CHEM, LTD.

The present invention provides a metallocene supported catalyst that can prepare a polyolefin having excellent transparency even when processed into a film, as well as excellent processibility and mechanical properties, with high catalytic activity, and a method for preparing a polyolefin using the same. 1. A metallocene supported catalyst comprising one or more kinds of metallocene compounds , two or more kinds of cocatalyst compounds , and a carrier ,wherein among the cocatalyst compounds, a first cocatalyst compound is a compound represented by the following Chemical Formula 1 and a second cocatalyst compound is diethyl zinc, and {'br': None, 'sup': 'a', 'sub': 'n', '—[Al(R)—O]—\u2003\u2003[Chemical Formula 1]'}, 'the diethyl zinc is included in the content of 0.1 to 3 mmol/g, based on the weight (g) of the carrier, and at least a part thereof is supported on the first cocatalyst compoundwherein, in Chemical Formula 1,{'sup': 'a', 'each Ris identical to or different from each other, and are independently a halogen, a C1-20 hydrocarbon, or a C1-20 hydrocarbon substituted with a halogen; and'}n is an integer of 2 or more.2. The metallocene supported catalyst according to claim 1 , wherein the compound represented by Chemical Formula 1 is methylaluminoxane claim 1 , ethylaluminoxane claim 1 , isobutylaluminoxane claim 1 , or butylaluminoxane.4. The metallocene supported catalyst according to claim 1 , wherein as the cocatalyst compound claim 1 , one or more kinds selected from the compounds represented by the following Chemical Formula 7 or Chemical Formula 8 are further included:{'br': None, 'sub': 23', '3, 'J(R)\u2003\u2003[Chemical Formula 7]'}wherein, in Chemical Formula 7,{'sub': '23', 'each Ris identical to or different from each other, and are independently a halogen, a C1-20 hydrocarbon, or a C1-20 hydrocarbon substituted with a halogen; and'} {'br': None, 'sup': +', '−', '+', '−, 'sub': 4', '4, '[E-H][ZA′] or [E][ZA′]\u2003\u2003[Chemical Formula 8]'}, 'J ...

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25-12-2014 дата публикации

Catalyst component

Номер: US20140378298A1
Принадлежит: Borealis AG

The invention relates to a particulate Group 2 metal/transition metal olefin polymerisation catalyst component comprising a special 1,3-diether as internal donor, to a process for preparing same and to the use of such a catalyst component for pre paring a catalyst used in the polymerisation of olefins.

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25-12-2014 дата публикации

Catalyst composition for polymerizing conjugated diene monomer

Номер: US20140378620A1
Принадлежит: Asahi Kasei Chemicals Corp

There is provided a catalyst composition for polymerizing a conjugated diene monomer containing a rare earth complex having a specific structure and a specific compound.

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12-09-2019 дата публикации

FUNCTIONALIZED POLYALPHAOLEFINS

Номер: US20190276565A1
Принадлежит:

Sulfur functionalized polyalphaolefins (PAOs) comprising at least one —S—CH—C(RR)—S— moiety, wherein Rand Rare independently selected from linear or branched alkyl, are provided. The sulfur functionalized polyalphaolefins (PAOs) are prepared by contacting PAO with elemental sulfur and are useful as lubricating oil base stocks or co-base stocks. The sulfur functionalized PAOs exhibit high oxidative stability and can be prepared without the need for hydrogenation. 1. A sulfur functionalized polyalphaolefin (PAO) , said sulfur functionalized PAO comprising at least one —S—CH—C(RR)—S— moiety , wherein Rand Rare independently selected from linear or branched alkyl.2. A process for die preparation of a sulfur functionalized polyalphaolefin (PAO) , said sulfur functionalized PAO comprising at least one —S—CH—C(RR)—S— moiety , wherein Rand Rare independently selected from linear or branched alkyl , the process comprising the step of contacting one or more PAOs comprising at least one vinylidene moiety with elemental sulfur or a source of elemental sulfur under reaction conditions sufficient to produce a sulfur functionalized PAO.3. A sulfur functionalized PAO according to claim 1 , wherein Rand Rare both linear alkyls.4. A sulfur functionalized PAO according to claim 1 , wherein Rand Rare both branched alkyls.5. A sulfur functionalized PAO according to claim 1 , wherein Ris a linear alkyl and Ris a branched alkyl.6. A sulfur functionalized PAO according to claim 1 , wherein Rand R claim 1 , independently contain between 1 and 100 carbon atoms.7. A sulfur functionalized PAO according to claim 1 , or a process according to any one of to claim 1 , wherein both Rand R claim 1 , independently contain between 1 and 1000 claim 1 , or between 1 and 500 claim 1 , or between 1 and 200 claim 1 , or between 1 and 100 claim 1 , or between 1 and 50 claim 1 , or between 3 and 1000 claim 1 , or between 3 and 500 claim 1 , or between 3 and 200 claim 1 , or between 3 and 100 claim 1 , or ...

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19-09-2019 дата публикации

PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS

Номер: US20190284313A1
Принадлежит: BASF SE

The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol %. The present invention further relates to novel isobutene polymers. 1. A process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol % , the process comprising:polymerizing isobutene or an isobutene-comprising monomer mixture in the presence at least one Lewis Acid effective as a polymerization catalyst, selected from the group consisting an aluminum trihalide-donor complex, an alkylaluminum halide-donor complex, an iron trihalide-donor complex, a gallium trihalide-donor complex, a titanium tetrahalide-donor complex, a zinc dihalide-donor complex, a tin dihalide-donor complex, and a tin tetrahalide-donor complex, effective as a polymerization catalyst, said complex comprising, as the donor, a mixture of:at least organic compound (II) comprising at least one oxygen or nitrogen atom with at least one lone electron pair, preferably comprising at least one oxygen atom with at least one lone electron pair, very preferably selected from the group consisting of organic compounds with at least one ether function, organic compounds with at least one carboxylic ester function, organic compounds with at least one aldehyde function, organic compounds with at least one keto function, and organic compounds with at least one nitrogen containing heterocyclic ring, andat least one ionic liquid.3. The process according to claim 1 , wherein the ionic liquid comprises an anion selected from the group consisting of fluoride claim 1 , chloride; bromide claim 1 , iodide; thiocyanate; hexafluorophosphate; trifluoromethanesulfonate; methanesulfonate; carboxylates; mandelate; nitrate; nitrite; trifluoroacetate; sulfate; hydrogensulfate; methylsulfate; ethylsulfate; 1-propylsulfate; ...

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25-10-2018 дата публикации

METHOD FOR FORMING A POLYETHYLENE NANOCOMPOSITE

Номер: US20180305527A1

Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology. 1. A method for forming a high-density polyethylene nanocomposite by polymerizing a mixture of ethylene and a calcium zirconate nanofiller , comprising:adding a zirconocene catalyst, the calcium zirconate nanofiller and a solvent to a reactor;mixing the zirconocene catalyst and the calcium zirconate nanofiller in the solvent;injecting ethylene into the reactor until absorption of ethylene is no longer observed; followed byadding a methylaluminoxane cocatalyst into the reactor to from a catalyst mixture; thenpolymerizing the ethylene by pressurizing the reactor with ethylene and maintaining a pressure of 1-1.5 bar to form a polymerization mixture; and thenquenching the polymerization mixture with methanol to form the high-density polyethylene nanocomposite;wherein the calcium zirconate nanofiller is dispersed in a polyethylene matrix of the high-density polyethylene nanocomposite, andthe calcium zirconate nanofiller is not a support, material for the zirconocene catalyst.2. The method of claim 1 , wherein the calcium zirconate nanofiller is present in an amount of from 0.02 to 3.0 wt. % per total weight of the high-density polyethylene nanocomposite produced.3. (canceled)4. The method of claim 1 , wherein the solvent is toluene.5. The method of claim 4 , wherein the zirconocene catalyst has a concentration of from 10 to 30 μmol in toluene.6. The method of claim 4 , wherein the methylaluminoxane cocatalyst is present at a methylaluminoxane/toluene volume ratio of from 1:10 to 1:20.7. (canceled)8. The method ...

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