НОСИТЕЛЬ ДЛЯ КАТАЛИЗАТОРА, ПРЕДНАЗНАЧЕННОГО ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНА, И СПОСОБ ЕГО ПОЛУЧЕНИЯ И ЕГО ПРИМЕНЕНИЕ

Изобретение относится к области полимеризации олефина и, точнее, оно относится к носителю для катализатора, предназначенного для полимеризации олефина, и к способу его получения, а также к компоненту катализатора, предназначенного для полимеризации олефина, и к катализатору, и к способу полимеризации олефина. Описан носитель для катализатора, предназначенного для полимеризации олефина, содержащий магнийсодержащее соединение и серу, в котором серой является элементарная сера, в котором магнийсодержащее соединение выбрано из числа соединений магния, описывающихся формулой (I), где в формуле (I): R1 выбран из группы, состоящей из следующих: замещенный или незамещенный линейный C1-С10-алкил, замещенный или незамещенный разветвленный С3-С10-алкил, замещенный или незамещенный С3-С10-циклоалкил, замещенный или незамещенный С3-С10-арил, замещенный или незамещенный С7-С20-арилалкил и замещенный или незамещенный С7-С20-алкиларил; R2 и R3 являются одинаковыми или отличаются друг от друга, все независимо ...

СПОСОБ ПОЛУЧЕНИЯ КОМПОНЕНТОВ КАТАЛИЗАТОРА ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ

Изобретение относится к способу получения твердого компонента катализатора для (со)полимеризации CH2=CHR олефинов, в котором R представляет собой водород или углеводородный радикал с 1-12 атомами углерода, включающий соединение Ti и, необязательно, электронодонорное соединение на носителе на основе хлорида Mg. Способ включает одну или несколько стадий (а), проводимых при температуре, составляющей от 0 до 150°C, в котором соединение на основе Mg формулы (MgClmX2-m)·nC2H5OH, где m составляет от 0 до 2, n составляет от 0 до 6, и где X представляет собой галоген, вступает в реакцию с жидкой средой, содержащей соединение Ti, имеющее, по меньшей мере, связь Ti-Cl, в таком количестве, чтобы молярное соотношение Ti/Mg составляло больше чем 3, и по меньшей мере одну стадию (b), в которой твердые частицы, поступающие со стадии (а), суспендируются в жидкой среде, содержащей углеводород, при температуре, составляющей от 10 до 100°С. Способ характеризуется тем, что по меньшей мере одна из указанных ...

Способ получения катазизатора для полимеризации олефинов

Способ получения полиолефинов

Способ получения полиолефинов

VERFAHREN UND KATALYSATOR ZUR HERSTELLUNG VON POLYOLEFINEN

Katalysatorbestandteile und Katalysatoren für die Olefinpolymerisation

IONAUSGETAUSCHTES ALUMINIUM-MAGNESIUMSILIKAT ODER FLUORINIERTE MAGNESIUMSILIKAT AEROGELEN UND KATALYSATORTRÄGER AUS DERSELBEN

Neue Polymerisationskatalysatoren,ihre Herstellung und Verwendung

OLEFIN POLYMERIZATION

... 1291552 Olefin polymerization catalyst MONTECATINI EDISON SpA 8 Jan 1970 [10 Jan 1969] 916/70 Heading C3P Olefins are polymerized utilizing as a catalyst a reaction product of a hydrated magnesium halide of the formula MgX 2 .nH 2 O, wherein X is halogen and n>0, with a halogen containing titanium or vanadium compound under such conditions that the hydrated magnesium halide is transformed at least on the surface into an anhydrous magnesium halide, which product is activated with a hydride or organometallic compound of Groups I-III. The reaction product of the magnesium halide and Ti or V compound may be prepared by reacting the hydrated magnesium halide with a stoichiometric excess of the Ti or V compound, either in a normally liquid state, or, if it is normally a solid, in solution in a solvent which is inert to the magnesium halides, preheated to the boiling temperature of the compound or solution, followed by removal of the liquid phase from the reaction zone. In the examples, (1) ethylene ...

Supported polyolefin catalyst and preparation and application thereof

The present invention relates to a supported polyolefin catalyst and the preparation and application thereof, wherein a main catalyst is composed by a carrier and a transition metal halide, and the carrier is composed by a magnesium halide compound, a silicon halide compound, an alcohol with a number of carbon atoms less than or equal to C5, and an alcohol with a number of carbon atoms of C6-C20 at a mole ratio of 1:(0.1-20):(0.1-5):(0.01-10); the mole ratio of the magnesium halide compound to the transition metal halide is 1:(0.1-30); an organic alcohol ether compound is added during the preparation of the main catalyst, the mass ratio of the magnesium halide compound to the organic alcohol ether compound being 100:(0.1-20); and the mole ratio of the transition metal halide in the main catalyst to a co-catalyst is 1:30-500. The present catalyst has good particle morphology and uniform particle size distribution, the polymer obtained through catalysis has a low fine powder content and a ...

PROPYLENE POLYMER AND PROCESS FOR ITS PREPARATION

Metal halide reaction products and their use in catalysts for polymerising olefins

A solid catalyst for olefin polymerization is obtained by treating magnesium halide with halogen or a halogen compound and further treating with an electron donative compound and a halogen-containing titanium compound. The halogen atom of the halogen or halogen compound as the treating agent must be different from the halogen atom of magnesium halide as the substrate. This solid catalyst is used for a catalytic system for olefin polymerization in combination with an organometallic compound.

Process for producing an olefin polymerisation catalyst.

A first catalyst component formed by reacting a metal halide compound selected from metal dihalides and metal hydroxyhalides with a transition metal compound, is mixed with a second catalyst component selected from metal halides, oxygen-containing halides, hydrogen halides and organic acid halides to obtain a solid reaction product which product is treated with a halide ion exchanging source to obtain an olefin polymerization catalyst.

CATALYST COMPOSITIONS AND THEIR USE IN THE POLYMERISATION OF OLEFINS

... 1456464 Olefin polymerization catalysts MITSUI PETROCHEMICAL INDUSTRIES Ltd 23 Aug 1974 [24 Aug 1973] 37217/74 Addition to 1433537 Heading C3P A catalyst for the homopolymerization of a mono olefin or the copolymerization thereof with an ethylenically unsaturated compound comprises (a) an organometallic compound of a metal of Groups I-III of the Periodic Table, and (b) a component prepared by reacting a T 1 or V compound with the reaction product obtained by (i) reacting an organoaluminium compound and an alcohol simultaneously or sequentially in this order with a solid magnesium dihalide carrier or (ii) by reacting the organoaluminium compound with the alcohol and then reacting the resulting product with the magnesium dihalide. Ethylene may be homopolymerized or copolymerized with propylene, butene, hexene, methyl pentene, octene, butadiene, isoprene, ethylidene norbornene, dicyclopentadiene and 1,4-hexadiene. In the examples ethylene is homopolymerized or copolymerized with butadiene ...

CATALYST COMPONENTS AND CYTALYSTS FOR THE POLYMERIZATION OF ALPHA OLEFINES

METHOD OF POLYMERZING OLEFINS USING ZEIGLER-TYPE CATALYSTS

PROCESS FOR PREPARING A POLYMERISATION CATALYST COMPONENT

... 1527736 MgCl 2 -supported catalyst compounds for olefinic polymerization MITSUI PETRO. CHEMICAL INDUSTRIES Ltd 20 Nov 1975 47894/75 Heading C3P A process for preparing a catalyst component supported on a carrier, which process comprises contacting in the absence of mechanical pulverization in an inert atmosphere (A) a liquid or gaseous titanium tetrahalide with (B) a solid, said solid (B) being obtained by mechanically pulverizing in an inert atmosphere a composition comprising (a) a magnesium dihalide and (b) an ester of a monoaromatic monocarboxylic acid in a molar ratio of (a) : (b) of 1 : not less than 0À005. Examples describe the polymerization of propylene in the presence of polypropylene, triisobutyl (or ethyl) aluminium and a component prepared by milling MgCl 2 with ethyl benzoate (anisate or toluate) and in some cases a C 5 , C 6 or C 8 hydrocarbon or isopropyl chloride and subsequently reacting it with TiCl 4 . A component MgCl 2 O.22PhCOOEt is specified.

SUPPORTED TRANSITION METAL-ARENE COMPOUNDS

POLYMERIZATION OF OLEFINS

... 1286867 Supported catalysts for olefin polymerizations MONTECATINI EDISON SpA 24 Nov 1969 [5 Nov 1968] 57301/69 Heading C3P A catalyst suitable for the polymerization of olefins comprises the reaction product of (a) a hydride or organometallic compound of a Group I, II or III metal and (b) the product obtained by contacting a titanium tetrahalide with a support comprising an anhydrous magnesium or zinc halide in an active form in which the highest intensity diffraction line in the X- ray powder spectrum is replaced by a halo of lower intensity and/or having a surface area greater than 3 square metres per gram. The anhydrous magnesium or zinc halide may be obtained by decomposition of RMgX or RZnX wherein R is alkyl or aryl and X is halogen, or by reaction of these organometallics with a stoichiometric amount or excess of a halogen containing compound. The catalysts may be used for polymerizing ethylene alone, or with other alpha-olefins and/or diolefins. In the examples ethylene is polymerized ...

PROCEDURE FOR THE PRODUCTION OF OLEFINPOLYMEREN OR - COPOLYMERS

PROCEDURE FOR THE PRODUCTION OF NEW CATALYST COMPONENTS

PROCEDURE FOR THE PRODUCTION OF NEW CATALYST COMPONENTS

PROCEDURE FOR THE POLYMERIZATION OF ALPHA OLEFINEN

PROCEDURE FOR POLYMERIZING ALPHA OLEFINEN

CATALYTIC TITANIUM COMPONENT AND PROCEDURE FOR YOUR PRODUCTION

PROCEDURE FOR THE PRODUCTION OF A CATALYST AND A PROCEDURE FOR THE POLYMERIZATION OF ALPHAOLEFINEN USING THIS CATALYST

VERFAHREN ZUR HOMO- ODER COPOLYMERISATION VON ALFA-OLEFINEN

VERFAHREN ZUR POLYMERISATION VON OLEFINEN

VERFAHREN ZUR HERSTELLUNG EINES HOCHKRISTALLINEN OLEFINPOLYMEREN ODER -COPOLYMEREN

VERFAHREN ZUM POLYMERISIEREN

VERFAHREN ZUR HERSTELLUNG VON SPHAEROIDISCHEN, BEI RAUMTEMPERATUR FESTEN PRODUKTEN

KATALYTISCHE TITANKOMPONENTE UND VERFAHREN ZU IHRER HERSTELLUNG

VERFAHREN ZUR HERSTELLUNG VON COPOLYMEREN VON PROPYLEN MIT ATHYLEN

PROCEDURE FOR THE PRODUCTION OF OLEFINPOLYMEREN OR - COPOLYMERS

PROCEDURE FOR THE PRODUCTION HIGH-CRYSTALLINE OLEFINPOLYMEREN OR - COPOLYMERS

PROCEDURE FOR THE PRODUCTION OF OLEFINPOLYMEREN OR - COPOLYMERS

PROCEDURE FOR THE HOMO AND COPOLYMERISATION OF AETHYLEN

PROCEDURE FOR THE PRODUCTION OF OLEFINPOLYMEREN OR - COPOLYMERS

PROCEDURE FOR THE HOMO AND COPOLYMERISATION OF ETHYLEN

PROCEDURE FOR POLYMERIZING ETHYLEN, PROPYLENE OR MIXTURES HIEVON

CONTINUOUS PROCEDURE FOR THE PRODUCTION OF ALFA OLEFINPOLYMEREN OR - COPOLYMERS

PROCEDURE FOR THE PRODUCTION A AETHYLENTERPOLYMEREN WITH STATISTIC DISTRIBUTION AND BY FUSION FORMS RECEIVED ARTICLES FROM THIS TERPOLYMER.

VERFAHREN ZUR POLYMERISATION VON ALPHA-OLEFINEN

CATALYTIC COMPONENT AND PROCEDURE FOR YOUR PRODUCTION.

CATALYST COMPONENTS AND CATALYSTS FOR THE OLEFINPOLYMERISATION

CATALYST FOR THE PRODUCTION OF ELASTOMERS ETHYL PROPYLENE COPOLYMERS

PROCEDURE FOR THE PRODUCTION OF NEW POLYMERIZATION CATALYSTS

PROCEDURE FOR STEREOREGULAREN THE POLYMERIZATION OF ALFA OLEFINEN

Procedure for the production of new catalysts for the polymerization of Olefinen

Procedure for the production of new polymerization catalysts

PROCEDURE FOR THE POLYMERIZATION OF ALKENEN-1

PROCEDURE FOR THE POLYMERIZATION OF ALFA OLEFINEN

PROCEDURE FOR THE PRODUCTION OF COPOLYMERS OF PROPYLENE WITH ATHYLEN

CATALYST COMPONENT SUPPORTED ON HIGH PERFORMANCE CARRIER

POLYMERIZING OR COPOLYMERIZING OLEFINS CONTAINING AT LEAST 3 CARBON ATOMS

POLYMERIZATION CATALYST COMPONENT

STEREOREGULAR POLYMERIZATION OF ALPHA-OLEFINS

OLEFIN POLYMERISATION CATALYST COMPOSITION

POLYMERIZATION CATALYST

POLYMERIZING ALKENES-1

POLYMERIZING ALPHA-OLEFINS CONTAINING AT LEAST 3 CARBON ATOMSAND CATALYST THEREFOR

PREPARATION OF SPEROIDALLY SHAPED PRODUCTS

PROCESS FOR POLYMERIZING ALKENES-1

CATALYSTS FOR THE POLYMERIZATION OF OLEFINS

CONTINUOUS PROCESS FOR PRODUCTION OF OLEFIN POLYMERS OR COPOLYMERS

PROCESS FOR PREPARING SATURATED AND UNSATURATED ELASTOMERIC COPOLYMERS OF ETHYLENE AND/OR HIGHER ALPHA-OLEFINS

CONTROLLED POLYMERISATION OF ETHYLENE

PROCESS FOR PRODUCING CATALYST COMPONENTS FOR OLEFIN POLYMERIZATION

A catalyst component, which is to be combined with an organoaluminum component to form a Ziegler catalyst for olefin polymerization, is produced by treating (1) a solid composition resulting from a process of combining together a magnesium halide such as magnesium chloride, an electron donor compound such as ethyl benzoate and a titanium halogen compound such as titanium tetrachloride with (2) an interhalogen compound or a halogen such as iodine trichloride.

CATALYTIC TITANIUM COMPONENT, PROCESS FOR THE MANUFACTURE THEREOF, AND PROCESS FOR THE POLYMERIZATION OF ALKENES-1 WITH APPLICATION OF SUCH A TITANIUM COMPONENT

The invention relates to a catalytic titanium component useful for the polymerization of alkenes-1 and for the copolymerization of alkenes-1 with each other or with ethylene, which titanium component contains a halogenated titanium compound, an electron donor, and a mixture of a magnesium halide and an aluminum halide. The titanium component according to the invention is characterized in that it contains 0.1-10 % by wt. of titanium and the titanium : magnesium : aluminium weight ratio amounts to 1 :(0.5-20) : (0.05-2.5), while the magnesium : aluminium weight ratio is at least 3 : 1. With these specific weight ratios, the aluminium halide does not act as an inert filler, but has a very special action, reflected in a particular high activity at good stereospecificity of a catalyst system containing such a titanium component. The catalytic titanium component according to the invention is mainly of importance for stereospecific polymerization of propylene.

POLYOLEFIN POLYMERIZATION PROCESS AND CATALYST

A method for making novel catalysts for the polymerization of olefins, said catalysts being prepared by reacting a metal dihalide with certain transition metal compounds and reacting that product with certain organoaluminum compounds wherein in one embodiment that product is contacted with a halide exchanging source selected from halides of Groups IVA and Va of the Periodic Table and wherein another embodiment a third component, such as an electron donor, is included in the reaction between the metal dihalide as the transition metal compound.

TRIALKYL ALUMINUM COCATALYST

A new improved catalyst system for alphaolefin type polymerizations, includes at least one metal alkyl compound having the formula RnMR'3-n in combination with a Group IVB-VIII transition metal compound on a support and at least one Lewis base wherein R is selected from the group consisting of C3 to C20 secondary or tertiary alkyl, cycloalkyl, alkenyl or aralkyl groups; R' is selected from the group consisting of C1 to C20 primary alkyl, alkenyl or aralkyl groups, or a hydride, M is selected from the group consisting of aluminum, gallium, or indium; and n = 0-3. The improved catalyst system provides polymers having increased isotactic stereoregularity as well as lower catalyst residue.

OLEFIN POLYMERIZATION

A process for the polymerization of alphaolefins having at least three carbon atoms, using a catalyst containing titanium, magnesium, aluminium and halogen. The catalyst employed comprises, according to the invention, the reaction product of (A) an addition and/or substitution product of an electron donor compound (Lewis base) with an aluminium alkyl, with (B) a compound and/or composition in which the atomic ration of halogen/magnesium is at least 1:1, which compound and/ or composition is either (I) obtained by contacting (a1) a halogen-containing titanium compound with the product of reaction between (a2) a magnesium alcoholate of the formula XMgOR, where R is an alkyl, cycloalkyl or aryl radical containing up to 20 carbon atoms and X is a halogen atom, R or OR, or a magnesium salt of a saturated or unsaturated carboxylic acid, or a magnesium enolate, and (a3) aluminium halides of the formula AlRnX3-n, in which R and X are as defined above, and n is 0,1 or 2, or (II) a reaction product ...

TRIALKYL ALUMINUM COCATALYST

CATALYSTS FOR POLYMERIZING OLEFINS TO SPHEROIDAL-FORM POLYMERS

METHOD FOR THE PRODUCTION OF A LOW DENSITY POLYETHYLENE

OLEFIN POLYMERIZATION

PROCESS TO PRODUCE MODIFIED CLAY, MODIFIED CLAY PRODUCED AND USE THEREOF

An intercalated, modified and calcined smectite clay comprising (a) pillars comprising aluminum and: (i) at least one rare earth or lanthanide group metal; or (ii) at least one rare earth or lanthanide group metal and gallium; and (b) at least one ion-exchanged metal selected from the group consisting of aluminum, barium, beryllium, calcium, cerium, cesium, copper, chromium, gadolinium, gallium, germanium, hafnium, holmium, iron (II and III), lanthanum, lithium, magnesium, manganese, neodymium, potassium, praseodymium, rubidium, samarium, silver, selenium, sodium, strontium, tellurium, terbium, thallium, thorium, tin, titanium, uranium, ytterbium, yttrium, zinc and zirconium; wherein the clay is characterized by a basal d 001 spacing equal to or greater than about 18.5 angstroms; and processes for making. The modified clays are suitably used as catalyst support-activators and when used in combination with metallocene catalyst precursor components, can provide active catalysts for polymerizing ...

PROCESS TO PRODUCE MODIFIED CLAY, MODIFIED CLAY PRODUCED AND USE THEREOF

An intercalated, modified and calcined smectite clay comprising (a) pillars comprising aluminum and: (i) at least one rare earth or lanthanide group metal; or (ii) at least one rare earth or lanthanide group metal and gallium; and (b) at least one ion-exchanged metal selected from the group consisting of aluminum, barium, beryllium, calcium, cerium, cesium, copper, chromium, gadolinium, gallium, germanium, hafnium, holmium, iron (II and III), lanthanum, lithium, magnesium, manganese, neodymium, potassium, praseodymium, rubidium, samarium, silver, selenium, sodium, strontium, tellurium, terbium, thallium, thorium, tin, titanium, uranium, ytterbium, yttrium, zinc and zirconium; wherein the clay is characterized by a basal d 001 spacing equal to or greater than about 18.5 angstroms; and processes for making. The modified clays are suitably used as catalyst support-activators and when used in combination with metallocene catalyst precursor components, can provide active catalysts for polymerizing ...

Verfahren zur Polymerisation von a-Olefinen

PROCEDURE FOR THE PRODUCTION ONE PROPYLEN/AETHYLEN MISCHPOLYMERS.

MEMBERS OF CATALYSTS AND CATALYSTS FOR THE POLYMERIZATION OF THE ALFA-OLEFINE.

PROCEDURE FOR THE PREPARATION OF PRODUCTS IN SPHEROIDAL FORM SOLID AT ROOM TEMP.

USEFUL CATALYTIC COMPONENTS TO POLYMERIZE ALPHA-OLEFINS AND CATALYSTS WHICH ARE OBTAINED FROM IT

PROCEDE DE PREPARATION DE POLYMERES ET COPOLYMERES D'OLEFINES ET CATALYSEUR A UTILISER DANS CE PROCEDE

L'invention concerne un procédé de préparation d'un polymère ou d'un copolymère d'oléfines en polymérisant ou en copolymérisant une oléfine contenant au moins 3 atomes de carbone, qui peut contenir au plus 10 moles % d'éthylène et/ou d'un diene, en présence d'un catalyseur composé de : A. un composant catalytique de titane solide obtenu en faisant réagir un composant de magnésium solide dérivé de i, un composé de magnésium contenant un halogène, ii un composé organique contenant de l'hydrogène actif, iii un ester d'acide organique et iv un compose organométallique d'un métal des groupes I à III de la table périodique, avec un composé de titane et B. un composé organometallique d'un métal des groupes I à III de la table périodique. Selon l'invention, le composant catalytique de titane solide A est préparé en faisant réagir un produit mécaniquement pulvérisé d'un ester d'acide organique et d'un composé de magnésium contenant un halogène avec un composé organique contenant de l'hydrogène actif ...

COMPOSANTS DE CATALYSEURS ET CATALYSEURS POUR LA POLYMERISATION D'ALPHA-OLEFINES

La présente invention concerne des composants de catalyseurs pour la polymérisation des oléfines. Selon l'invention, ils comprennent le produit de réaction d'un composé de titane avec un halogénure de magnésium, ces composants de catalyseurs ayant la forme de particules sphériques ayant un diamètre moyen compris entre 1 et 100 mu , une aire superficielle comprise entre 300 et 500 m**2/g et une porosité comprise entre 0,3 et 0,4 cm** 3/g, et ils peuvent former des catalyseurs qui, quand ils sont utilisés dans un essai standard pour la polymérisation du propylène, donnent des polymères sous forme de particules spheriques ayant une aptitude à l'écoulement inférieure à 16 secondes, et en particulier comprise entre 12 et 15 secondes, et une densité apparente supérieure à 0,4 g/cm** 3. L'invention s'applique notamment à la polymérisation des alpha-oléfines telles que le propylène, le butène-1, le 4-méthylpentène-1 et leurs mélanges avec de l'éthylène.

A METHOD FOR PREPARING POLYOLEFINS

Catalyseur mixte pour la polymérisation d'oléfines, sa préparation et son utilisation.

Catalyseur pour la polymérisation d'oléfilnes-1, obtenu par modification d'un halogénure de magnésium avec un donneur d'électrons et/ou un cyclopolyène, lavage avec un hydrocarbure, mise en contact avec un halogénure de titane, puis broyage de la composante ainsi obtenue avec un composé alumino-organique et avec un stéréorégulateur. Ce catalyseur permet d'obtenir des polyoléfines ayant une grande isotacticité et une faible proportion de particules très fines, avec de bons rendements.

CATALYST COMPOSITIONS AND THEIR USE IN THE POLYMERISATION OF OLEFINS

PROCESS UNINTERRUPTED FOR THE PRODUCTION OF POLYMERS OR COPOLYMERS

PROCESS OF PRODUCTION OF POLYMERS OR COPOLYMERS Of OLEFIN AND USEFUL CATALYST FOR the IMPLEMENTATION OF THIS PROCESS

CATALYTIC COMPOSITION FOR THE POLYMERIZATION OF OLEFINS

CATALYSTS FOR the OLEFIN POLYMERIZATION, METHOD OF PREPARATION AND USE OF THESE CATALYSTS

METHOD FOR PREPARING POLYOLEFINS BY POLYMERIZATION, OR COPOLYMERIZATION, Of OLEFIN IN THE PRESENCE OF a CATALYST CONSTITUTES Of ONE COMPOSES SOLID AND Of ONE COMPOSES ORGANOMETALLIC

NOUVEAU POLYMERE DE PROPYLENE

L'INVENTION A TRAIT A LA CHIMIE DES POLYMERES. ELLE CONCERNE UN POLYMERE NOUVEAU DU PROPYLENE AYANT UNE PLAGE D'ECOULEMENT A L'ETAT FONDU D'ENVIRON 0,2 A ENVIRON 30G10MINUTES, UN INDICE D'ISOTACTICITE NON INFERIEUR A ENVIRON 92, UNE TENEUR EN DIMERE-TRIMERE NE DEPASSANT PAS 4GKG DE POLYMERE, UN POINT DE FUSION A L'ETAT CRISTALLIN D'AU MOINS ENVIRON 165C, UN RAPPORT MPMN D'AU MOINS ENVIRON 7 ET DES TENEURS EN TI, MG, CL ET CENDRES TOTALES N'EXCEDANT PAS RESPECTIVEMENT ENVIRON 3PPM, ENVIRON 40PPM, ENVIRON 100PPM ET ENVIRON 400PPM. LE PROLYPROPYLENE DE L'INVENTION EST NOTAMMENT DOUE D'UNE EXCELLENTE APTITUDE AU TRAITEMENT LORSQU'IL EST EXTRUDE OU MOULE PAR INJECTION.

COMPOSITION CATALYTIQUE POUR LA POLYMERISATION DES OLEFINES

L'invention concerne une composition catalytique pour la polymérisation des oléfines. Le système catalytique de l'invention est constitué d'un métal alkyle, de formule R2 WY ou R3 W et d'un organomagnésium de formule R'MgX en combinaison avec un composé de métal de transition des Groupes IV B à VIII. L'invention s'applique en particulier à un système catalytique présentant une activité de polymérisation accrue des alpha-oléfines permettant d'obtenir des polymères ayant un degré élevé de stéréo-spécificité isotactique.

PROCESS FOR POLYMERISING OR COPOLYMERISING OLEFINS AND CATALYST THEREFOR

Polyethylene Composition and Finished Products Made Thereof

Novel polyethylenes having defined molecular weight distribution and LCB structure are devised, for films or mouldings.

Recovery of hydrocarbons from a hydrocarbon recycle

The invention relates to a process for the polymerization of olefins comprising the comprising the steps of a. Polymerizing olefins in a reaction mixture comprising monomers, diluent, processing as aids to prepare a product stream comprising polyolefins, monomers and diluent; b. Removing the polyolefins from the product stream to obtain a purge stream; c. Removing gaseous components from the purge stream to obtain a liquid fraction; d. Treating the liquid fraction with at least one ionic liquid to obtain a fraction containing unsaturated hydrocarbons; e. Recycling the fraction containing unsaturated hydrocarbons to the reaction mixture, optionally after purification of said fraction containing unsaturated hydrocarbons. The invention also relates to an olefin polymerization system comprising a polymerization reactor, a purge vessel, a vent gas recovery and an ionic liquid separator for separating liquid alkenes from liquid alkanes, wherein the liquid alkenes which are separated from the alkanes in the ionic liquid separator can be recycled to the polymerization reactor.

ZIEGLER-NATTA CATALYST AND PREPARATION THEREOF

This invention relates to a solid MgCb-based Natta catalyst component comprising a Cto Calkyl tetrahydrofurfuryl ether as internal electron donor for producing olefin polymers and preparation of said catalyst component. Further, the invention relates to a Ziegler-Natta catalyst comprising said solid catalyst component, Group 13 metal compound as co-catalyst and optionally external additives. The invention further relates to the use of said catalyst component in producing olefin polymers, especially ethylene copolymers. 2. The method according to claim 1 , wherein the solid carrier particles are contacted with the internal organic compound of formula (I) before step b).3. The method according to claim 1 , wherein the solid carrier particles are contacted with the internal organic compound of formula (I) simultaneously with step b) and/or after step b) but before step c).4. The method according to claim 1 , wherein in formula (I) Ris a linear or branched Cto C-alkyl group.5. The method according to claim 1 , wherein the internal organic compound is an internal electron donor selected from the group consisting of ethyl tetrahydrofurfuryl ether claim 1 , n-propyl tetrahydrofurfuryl ether claim 1 , isopropyl ethyl tetrahydrofurfuryl ether claim 1 , n-butyl tetrahydrofurfuryl ether claim 1 , sec-butyl tetrahydrofurfuryl ether claim 1 , tert-butyl tetrahydrofurfuryl ether claim 1 , and mixtures thereof claim 1 , and is most preferably ethyl tetrahydrofurfuryl ether.6. The method according to claim 1 , wherein R in the MgCl*mROH adduct is a linear or branched alkyl group containing 1 to 8 C atoms claim 1 , preferably 1 to 4 C atoms claim 1 , and m is 1 to 4 claim 1 , preferably m is 2.7 to 3.3.7. The method according to claim 1 , wherein the compound comprising the Group 13 metal is an aluminum compound of the formula{'br': None, 'sub': x', '3-x, 'Al(alkyl)X\u2003\u2003(II)'}whereineach alkyl is independently a linear, branched or cyclic alkyl group of 1 to 12 C-atoms, ...

SUPPORTED POLYOLEFIN CATALYST AND PREPARATION AND APPLICATION THEREOF

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 ...

NON-PHTHALATE CATALYST SYSTEM AND ITS USE IN THE POLYMERIZATION OF OLEFINS

This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds. 2. The non-phthalate catalyst system of claim 1 , wherein the transition metal is titanium claim 1 , the Group 2 metal is magnesium claim 1 , and the halogen is chloride.3. The non-phthalate catalyst system of claim 1 , wherein the catalyst system further comprises an organoaluminum cocatalyst selected from the group consisting of alkylaluminum claim 1 , alkylaluminum hydride claim 1 , alkylaluminum halide claim 1 , and alkylaluminum alkoxide.5. The non-phthalate catalyst system of claim 4 , wherein the cyclic diester compound is selected from the group consisting of diisobutyl cyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diethyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , di-n-propyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diisopropyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , di-n-butyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diisobutyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , dihexyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diheptyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , dioctyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , di-2-ethylhexyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , didecyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diethyl 4-methylcyclohexane-1 claim 4 ,3-dicarboxylate claim 4 , diisobutyl 4-methylcyclohexane-1 claim 4 ,3-dicarboxylate claim 4 , diethyl 4-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , di-n-propyl 4-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diisopropyl 4-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , ...

Process for gas-phase polymerization of olefins

Process for the preparation of heterophasic propylene copolymer compositions (RAHECO) made from or containing a random propylene copolymer (RACO) and an elastomeric propylene copolymer (BIPO), the process being carried out in a reactor having two interconnected polymerization zones, a riser and a downcomer, wherein growing polymer particles: (a) flow through the first polymerization zone, the riser, under fast fluidization conditions in the presence of propylene and of ethylene or an alpha-olefin having from 4 to 10 carbon atoms, thereby obtaining the random propylene copolymer (RACO); (b) leave the riser and enter the second polymerization zone, the downcomer, through which the growing polymer particles flow downward in a densified form in the presence of propylene and of ethylene or an alpha-olefin having from 4 to 10 carbon atoms, wherein the concentration of ethylene or of the alpha-olefin in the downcomer is higher than in the riser, thereby obtaining the elastomeric propylene copolymer (BIPO); and (c) leave the downcomer and are reintroduced into the riser, thereby establishing a circulation of polymer between the riser and the downcomer.

ETHYLENE COPOLYMERS AND FILMS WITH EXCELLENT SEALING PROPERTIES

An ethylene copolymer composition comprises: a first ethylene copolymer having a density of from 0.855 to 0.913 g/cm, a molecular weight distribution, M/Mof from 1.7 to 2.3, and a melt index, 12 of from 0.1 to 20 g/10 min; a second ethylene copolymer having a density of from 0.875 to 0.936 g/cm, a molecular weight distribution, M/Mof from 2.3 to 6.0, and a melt index, 12 of from 0.3 to 100 g/10 min; and optionally a third ethylene copolymer; where the first ethylene copolymer has more short chain branches per thousand carbon atoms than the second ethylene copolymer and the density of the second ethylene copolymer is equal to or higher than the density of the first ethylene copolymer. The ethylene copolymer composition has a density of from 0.865 to 0.913 g/cm; a melt index, 12 of from 0.5 to 10 g/10 min; and a fraction eluting at from 90 to 105° C., having an integrated area of greater than 4 weight percent in a CTREF analysis; and at least 0.0015 parts per million (ppm) of hafnium. 1. An ethylene copolymer composition comprising:{'sup': '3', 'sub': w', 'n', '2, '(i) from 20 to 80 weight percent of a first ethylene copolymer having a density of from 0.855 to 0.913 g/cm; a molecular weight distribution, M/Mof from 1.7 to 2.3; and a melt index, Iof from 0.1 to 20 g/10 min;'}{'sup': '3', 'sub': w', 'n', '2, '(ii) from 80 to 20 weight percent of a second ethylene copolymer having a density of from 0.875 to 0.936 g/cm; a molecular weight distribution, M/Mof from 2.3 to 6.0; and a melt index, Iof from 0.3 to 100 g/10 min; and'}(iii) from 0 to 40 weight percent of a third ethylene copolymer;wherein the number of short chain branches per thousand carbon atoms in the first ethylene copolymer (SCB1) is greater than the number of short chain branches per thousand carbon atoms in the second ethylene copolymer (SCB2);wherein the density of the second ethylene copolymer is equal to or greater than the density of the first ethylene copolymer;{'sup': '3', 'sub': '2', 'wherein the ...

PROCESS FOR TRANSITIONING BETWEEN INCOMPATIBLE CATALYSTS

The invention relates to a process for transitioning from a first continuous polymerization reaction in a reactor, for example a gas-phase reactor conducted in the presence of a first catalyst to a second continuous polymerization reaction in the react or conducted in the presence of a second catalyst, wherein the first and second catalysts are incompatible, the process comprising: (a) discontinuing the introduction of the first catalyst from a catalyst feeding system into a reactor and emptying the catalyst feeding system of the first catalyst; (b) introducing a first catalyst killer to the reactor to substantially deactivate the first catalyst in the reactor; (c) introducing a second catalyst killer to the catalyst feeding system to substantially deactivate the first catalyst in the catalyst feeding system; (d) introducing a second catalyst to the catalyst feeding system and (e) introducing the second catalyst to the reactor from the catalyst feeding system, wherein the second catalyst killer is the same as or different from the first catalyst killer. 1. A process for transitioning from a first continuous polymerization reaction in a reactor , conducted in the presence of a first catalyst to a second continuous polymerization reaction in the reactor conducted in the presence of a second catalyst , wherein the first and second catalysts are incompatible , the process comprising:(a) discontinuing the introduction of the first catalyst from a catalyst feeding system into a reactor and emptying the catalyst feeding system of the first catalyst;(b) introducing a first catalyst killer to the reactor to substantially deactivate the first catalyst in the reactor;(c) introducing a second catalyst killer to the catalyst feeding system to substantially deactivate the first catalyst in the catalyst feeding system;(d) introducing a second catalyst to the catalyst feeding system and(e) introducing the second catalyst to the reactor from the catalyst feeding system,wherein the ...

POLYPROPYLENE COMPOSITION FOR TAPES

The invention relates to a polypropylene composition comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most 1.0 wt % based on the propylene-ethylene copolymer, wherein the amount of propylene homopolymer or propylene-ethylene copolymer is at least 98 wt %, for example at least 98.5 wt %, preferably at least 99 wt %, more preferably at least 99.5, for example at least 99.75 wt % based on the polypropylene composition, wherein the polypropylene composition has a melt flow rate in the range of 0.70 to 2.4 dg/min as measured according to IS01 133 (2.16 kg/230° C.), an Mw/Mn in the range from 7.0 to 13.0, wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight, an Mz/Mn is in the range from 20 to 50, wherein Mz stands for the z-average molecular weight and wherein Mw, Mn and Mz are measured according to ASTM D6474-12. 1. A polypropylene composition comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most 1.0 wt % based on the propylene-ethylene copolymer ,wherein the amount of propylene homopolymer or propylene-ethylene copolymer is at least 98 wt %, based on the polypropylene composition, a melt flow rate in the range of 0.70 to 2.4 dg/min as measured according to ISO1133 (2.16 kg/230° C.);', 'an Mw/Mn in the range from 7.0 to 13.0, preferably from 8.0 to 13.0, wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight; and', 'an Mz/Mn is in the range from 20 to 50, wherein Mz stands for the z-average molecular weight, and, 'wherein the polypropylene composition has'}wherein Mw, Mn and Mz are measured according to ASTM D6474-12.2. The polypropylene composition according to having a melt flow rate in the range of 0.70 to 2.3 dg/min as measured according to ISO1133 (2.16 kg/230° C.).3. The polypropylene composition according to claim 1 , wherein the composition has an amount of xylene ...

POLYOLEFIN BASED ADHESIVE COMPOSITIONS HAVING GRAFTED POLYOLEFIN COPOLYMERS AND METHODS OF FORMATION

The present disclosure relates to adhesive compositions, processes of forming adhesive compositions, and multi-layer polymeric structures. The processes generally include contacting an olefin monomer with a catalyst system within a polymerization zone to form an olefin based polymer under polymerization conditions sufficient to form the olefin based polymer, the catalyst system including a metal component generally represented by the formula: 1. A process of forming an adhesive composition , the process comprising: {'br': None, 'sub': 'x', 'MR;'}, 'contacting an olefin monomer with a catalyst system within a polymerization zone to form an olefin based polymer under polymerization conditions sufficient to form the olefin based polymer, the catalyst system comprising a metal component generally represented by the formula{'sub': 3', '6, 'wherein M is a transition metal, R is a halogen, an alkoxy, or a hydrocarboxyl group and x is the valence of the transition metal, wherein the catalyst system further comprises an internal donor (ID) comprising a C-Ccyclic ether; and'}withdrawing the olefin based polymer from the polymerization zone; andblending the olefin based polymer with a grafted polyolefin copolymer formed from and/or containing at least a grafted polyolefin, an olefin elastomer and a long-chain branched polyolefin, so as to form a polyolefin based adhesive composition.2. The process of claim 1 , where in the blending comprises melt blending and the process is carried out as an inline process.3. The process of claim 1 , wherein the olefin based polymer is pelletized after it is withdrawn from the polymerization zone and before it is blended with the grafted polyolefin copolymer formed from and/or containing at least the grafted polyolefin claim 1 , the olefin elastomer and the long-chain branched polyolefin claim 1 , so as to form the polyolefin based adhesive composition.4. The process of claim 1 , wherein the olefin based polymer contacts the grafted polyolefin ...

PROCESS FOR PRODUCING LLDPE RESINS

A process for producing copolymers of ethylene and at least one alpha-olefin having from 4 to 10 carbon atoms in the presence of a solid Ziegler-Natta catalyst comprising of magnesium, titanium, halogen and an internal organic compound, the copolymer having a density of from 906 to 937 kg/mand a melt flow rate MFRmeasured at 190° C. under 21.6 kg load of from 3 to 150 g/10 min. The process includes the steps of (A) homopolymerising ethylene or copolymerising ethylene and a first alpha-olefin having from 4 to 10 carbon atoms in a first polymerisation stage in the presence of the polymerisation catalyst, hydrogen and optionally the first alpha-olefin; (B) copolymerising ethylene and a second alpha-olefin having from 4 to 10 carbon atoms in a second polymerisation stage in the presence of the first homo- or copolymer of ethylene and the Ziegler-Natta catalyst; and (C) recovering the polymer mixture. 2. The process according to comprising the additional steps of (a) providing solid carrier particles of MgCl*mROH adduct; (b) pre-treating the solid carrier particles of step (a) with a compound of Group 13 metal; (c) treating the pre-treated solid carried particles of step (b) with a transition metal compound of Group 4 to 6; (d) recovering the solid catalyst component; (e) contacting the solid carrier particles with the internal organic compound compound having the formula (I) prior to the step (c); and (f) passing the solid catalyst component into the first polymerisation stage claim 1 , wherein R in the adduct MgCl*mROH is a linear or branched alkyl group with 1 to 12 carbon atoms and m is a number from 0 to 6.3. The process according to wherein the hydrogen to ethylene ratio in the fluid reaction phase of the first polymerisation stage is from 200 to 1000 mol/kmol.4. The process according to wherein the first homo- or copolymer of ethylene is a homopolymer of ethylene and no comonomer is present in the first polymerisation stage.5. The process according to wherein the ...

Process to produce modified clay, modified clay produced and use thereof

An intercalated, modified and calcined smectite clay comprising (a) pillars comprising aluminum and: (i) at least one rare earth or lanthanide group metal; or (ii) at least one rare earth or lanthanide group metal and gallium; and (b) at least one ion-exchanged metal selected from the group consisting of aluminum, barium, beryllium, calcium, cerium, cesium, copper, chromium, gadolinium, gallium, germanium, hafnium, holmium, iron (II and III), lanthanum, lithium, magnesium, manganese, neodymium, potassium, praseodymium, rubidium, samarium, silver, selenium, sodium, strontium, tellurium, terbium, thallium, thorium, tin, titanium, uranium, ytterbium, yttrium, zinc and zirconium; wherein the clay is characterized by a basal d 001 spacing equal to or greater than about 18.5 angstroms; and processes for making. The modified clays are suitably used as catalyst support-activators and when used in combination with metallocene catalyst precursor components, can provide active catalysts for polymerizing at least one olefin, preferably in the substantial absence of aluminoxanes or boron-containing compounds.

Ziegler-natta catalyst systems comprising a 1,2-phenylenedioate as internal donor and process for preparing the same

A catalyst composition for use as precursor for Ziegler-Natta catalyst system, said catalyst composition comprising a combination of magnesium moiety, titanium moiety and an internal donor containing at least one 1,2-phenylenedioate compound of structure (A). Also, the present invention provides a process for preparing the aforesaid catalyst composition. Further, the present invention provides a Ziegler-Natta catalyst system incorporating the aforesaid catalyst composition and a method for polymerizing and/or copolymerizing olefins using the Ziegler-Natta catalyst system.

High Stiffness Polypropylene Impact Copolymer

Disclosed is a polypropylene with an MFR of at least 20 g/10 min comprising a homopolypropylene and optionally within a range from 2 wt % to 30 wt % of an propylene-α-olefin copolymer by weight of the polypropylene; wherein the homopolypropylene has a MFR within a range from 30 g/10 min to 200 g/10 min, an Mw/Mn within a range from 7 to 16, and comprising 1.1 wt % or less atactic polypropylene based on the total weight of the homopolypropylene and atactic polypropylene, where the propylene-α-olefin copolymer has within a range from 30 wt % to 50 wt % α-olefin derived units by weight of the propylene-α-olefin copolymer, and an intrinsic viscosity within a range from 4 to 8 dL/g. The impact copolymer may be obtained by combining a Ziegler-Natta catalyst having at least two different internal electron donors with propylene in reactors in series to produce the homopolypropylene followed by a gas phase reactor to produce a propylene-α-olefin copolymer. 1. A homopolypropylene having a melt flow rate of at least 20 g/10 min , an Mw/Mn within a range from 7 to 16 , an Mz/Mw within a range from 7 to 16 , and comprising 1.1 wt % or less of atactic polypropylene based on the total weight of the homopolypropylene and atactic polypropylene.2. The homopolypropylene of claim 1 , wherein the homopolypropylene has a flexural modulus of at least 1800 MPa claim 1 , preferably without a nucleating agent.3. The homopolypropylene of claim 1 , wherein the homopolypropylene has a weight average molecular weight (Mw) within a range from 150 claim 1 ,000 g/mole to 400 claim 1 ,000 g/mole.4. The homopolypropylene of claim 1 , wherein the homopolypropylene has a z-average molecular weight (Mz) of at least 1 claim 1 ,100 kg/mole.5. The homopolypropylene of claim 1 , wherein the homopolypropylene has an Mz/Mn value within a range from 70 to 160.6. The homopolypropylene of claim 1 , wherein the homopolypropylene comprises at least first and second homopolypropylenes having MFR values different by ...

SPHEROIDAL CATALYST FOR OLEFIN POLYMERIZATION

A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. 111-. (canceled)12. A method of making a spheroidal olefin polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0 , wherein said method comprises:i) combining a dialkylmagnesium compound with a non-protic ether,ii) combining the product of step i) with a source of chloride anion,iii) treating the product of step ii) to substantially remove the non-protic ether,iv) combining the product of step iii) with a phosphinimine catalyst and a cocatalyst.13. The method of wherein treating the product of step ii) to remove the non-protic ether comprises heating the product of step ii).14. The method of wherein treating the product of step ii) to remove the non-protic ether comprises adding an alkylaluminumchloride compound.15. The method of wherein the phosphinimine catalyst has the formula: (L)(PI)MX claim 12 , where M is Ti claim 12 , Zr or Hf; PI is a phosphinimine ligand having the formula RP═N— claim 12 , where R is independently selected from the group consisting of hydrogen claim 12 , halogen claim 12 , and C-Chydrocarbyl; L is a ligand selected from the group consisting of cyclopentadienyl claim 12 , substituted cyclopentadienyl claim 12 , indenyl claim 12 , substituted indenyl claim 12 , fluorenyl claim 12 , and substituted fluorenyl; and X is an activatable ligand.16. The method of wherein the phosphinimine catalyst has the formula: (L)((t-Bu)P═N)TiX claim 12 , where L is a cyclopentadienyl ligand ...

Preparation Method Of Catalyst For Ethylene Polymerization

Disclosed is a method for preparing a titanium solid catalyst supported on magnesium dichloride that may be used to prepare ultra-high molecular weight polyethylene having a high apparent density. Performing a polymerization reaction using a solid catalyst containing titanium tetrachloride and a phthalate compound may allow ultra-high molecular weight polyethylene having uniform particle size and high apparent density to be prepared. 1. A preparation method of a catalyst for producing ultra-high molecular weight polyethylene , the method comprising:{'sub': '2', '(1) reacting magnesium dichloride (MgCl) with alcohol to prepare a magnesium compound solution;'}(2) reacting titanium tetrachloride with the magnesium compound solution prepared in the step (1) to prepare a precursor; and(3) reacting the precursor with titanium tetrachloride and phthalate compound to prepare the catalyst.2. The method of claim 1 , wherein the alcohol is an alcohol having 4 to 20 carbon atoms.3. The method of claim 1 , wherein the phthalate compound includes at least one phthalate compound represented by a following general formula (I){'br': None, 'sub': 1', '6', '4', '2, 'ROOC(CH)COOR\u2003\u2003(I)'}{'sub': 1', '2, 'where each of Rand Rrepresents an alkyl group of 1 to 10 carbon atoms.'} This application claims the benefit and priority of Korean Patent Application No. 10-2019-0174006 filed Dec. 24, 2019. The entire disclosure of the above application is incorporated herein by reference.The present disclosure relates to a magnesium-supported titanium solid catalyst and a preparation method of ultra-high molecular weight polyethylene using the same. The present disclosure relates to a method for preparing ultra-high molecular weight polyethylene with uniform particle sizes and high apparent density by preparing a solid catalyst containing titanium tetrachloride and a phthalate compound and then performing polymerization using the same.This section provides background information related to ...

Preparation Method Of Catalyst For Ethylene Polymerization

Disclosed is a method for preparing a solid catalyst capable of controlling a molecular weight distribution and polydispersity according to an organic compound as used in a polymerization reaction, in which the solid catalyst contains titanium tetrachloride and a diester or diether organic compound. The catalyst having excellent polymerization activity, and allowing uniform particle size and high apparent density of the ultra-high molecular weight polyethylene, and easily controlling the molecular weight distribution and polydispersity of the ultra-high molecular weight polyethylene may be prepared simply and efficiently.

PROCESS FOR PREPARING POLYPROPYLENE COMPOSITION

The invention relates to a process for producing a polypropylene composition by sequential polymerization said polypropylene composition having low sealing initiation temperature (SIT) and high melting point (Tm), presenting thus a broad sealing window. 112-. An article comprising a polypropylene composition produced by a sequential polymerization process wherein the polypropylene composition is a binary blend comprising two propylene polymer fractions PPF1 and PPF2 and wherein the process comprises at least two reactors connected in series , said process comprising the steps:{'sub': 4', '10, 'a) polymerizing in a first reactor (R-1), propylene and one comonomer selected from C-Calpha-olefin to obtain a propylene polymer fraction (PPF1), the first reactor (R-1) being a slurry reactor and the propylene polymer fraction (PPF1) being a propylene copolymer,'}b) transferring the propylene polymer fraction (PPF1) and unreacted comonomers of the reactor (R-1) into a second reactor (R-2), the second reactor (R-2) being a first gas-phase reactor-1 (GPR-1),{'sub': 4', '10, 'c) polymerizing in the gas-phase reactor-1 (GPR-1) propylene, ethylene and one comonomer selected from C-Calpha-olefin in the presence of the propylene polymer fraction (PPF1) to obtain a propylene polymer fraction (PPF2), being a polypropylene terpolymer,'}d) forming the polypropylene composition from the propylene polymer fraction (PPF2) and the propylene polymer fraction (PPF1), and{'sub': 4', '10', '4', '10', '4', '10', '4', '10', '4', '10', '4', '10, 'e) recovering the polypropylene composition wherein the mol ratio of C-Calpha-olefin content in the propylene copolymer fraction PPF1 (C-C-PPF1)/C-Calpha-olefin content in the polypropylene composition (C-C-T) [(C-C-PPF1)/(C-C-T)] is in the range of 0.10 to 0.95, and'}wherein the polypropylene composition has a melting temperature (Tm) in the range of 135 to 160° C. as determined by DSC according to ISO 11357,wherein the polymerization process is carried ...

POLYETHYLENE, METHOD FOR PREPARING THE SAME AND SEPARATOR USING THE SAME

Disclosed herein is a polyethylene. The polyethylene has a melt flow index of about 0.4 g/10 min to about 0.6 g/10 min, a weight average molecular weight of about 500,000 g/mol to about 700,000 g/mol, and a molecular weight distribution of about 3 to about 5 and is prepared by polymerization in the presence of a catalyst retaining at least about 50% of an initial reactivity level (during initial 30 minutes) for a period of time exceeding about 4 hours. 1. A polyethylene having a melt flow index of about 0.4 g/10 min to about 0.6 g/10 min , as measured at a temperature of 190° C. and under a load of 2.16 kg , a weight average molecular weight of about 500 ,000 g/mol to about 700 ,000 g/mol , and a molecular weight distribution of about 3 to about 5 , wherein the polyethylene is prepared by polymerization in the presence of a catalyst retaining at least about 50% of an initial reactivity level (during initial 30 minutes) for a period of time exceeding about 4 hours.2. The polyethylene according to claim 1 , wherein the catalyst is a Ziegler-Natta catalyst in which a titanium compound is supported on a magnesium support.3. The polyethylene according to claim 1 , wherein the polyethylene has a melting transition heat capacity of about 180 J/g or less claim 1 , as measured by differential scanning calorimetry claim 1 , and an average particle diameter of about 80 μm to about 180 μm.4. A method of preparing the polyethylene according to claim 1 , the method comprising:polymerizing ethylene in the presence of a catalyst retaining at least about 50% of an initial reactivity level (during initial 30 minutes) for a period of time exceeding about 4 hours.5. The method according to claim 4 , wherein a molecular weight of the polyethylene is controlled by adjusting an input of hydrogen in the range of about 350 ppm to about 800 ppm.6. The method according to claim 4 , wherein the catalyst is a Ziegler-Natta catalyst in which a titanium compound is supported on a magnesium ...

High-density ethylene-based polymer using supported hybrid metallocene catalyst, and manufacturing method therefor

A high-density ethylene-based polymer is provided. The high-density ethylene-based polymer contains an ethylene homopolymer or a copolymer of ethylene and at least one comonomer selected from the group consisting of an α-olefin, a cyclic olefin, and a straight, branched and cyclic diene. The high-density polyethylene resin has a wide molecular weight distribution and excellent comonomer distribution characteristics, has excellent melt flowability due to a long chain branched structure, and has excellent mechanical characteristics since the comonomer distribution is concentrated in a high-molecular-weight body. The high-density ethylene polymer has excellent molding processability during processing such as extrusion, compression, injection and rotational molding by having excellent mechanical characteristics and melt flowability.

ZIEGLER-NATTA CATALYST SYSTEM HAVING A THERMALLY TREATED MAGNESIUM CHLORIDE COMPONENT

A heterogeneous procatalyst includes a titanium species, a magnesium chloride component, and a chlorinating agent having a structure A(C)x(R)3-x, where A is aluminum or boron, Ris a (C-C) hydrocarbyl, and x is 1, 2, or 3. The magnesium chloride component may be thermally treated at a temperature greater than 100 C for at least 30 minutes before or after introduction of the chlorinating agent and titanium species to the heterogeneous procatalyst. The heterogeneous procatalyst having the thermally treated magnesium chloride exhibits improved average molecular weight capability. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed. 1. A heterogeneous procatalyst comprising:a titanium species;{'sub': x', '3-x, 'sup': '1', 'claim-text': A is aluminum or boron;', {'sup': '1', 'sub': 1', '3, 'Ris a (C-C) hydrocarbyl; and'}, 'x is 1, 2, or 3; and, 'a chlorinating agent having a structure A(Cl)(R), wherea thermally-treated magnesium chloride component, wherein the thermally treated magnesium chloride component comprises a product of thermally treating a magnesium chloride slurry at a temperature of at least 150° C. for at least 30 minutes.2. The heterogeneous procatalyst of claim 1 , wherein the magnesium chloride slurry comprises at least magnesium chloride dispersed in a solvent.3. The heterogeneous procatalyst of claim 2 , wherein the magnesium chloride slurry comprises the titanium species and the chlorinating agent.4. The heterogeneous procatalyst of claim 1 , wherein the heterogeneous procatalyst comprises the product of:thermally treating a slurry of magnesium chloride dispersed in a solvent at a temperature of at least 100° C. for at least 30 minutes; andcombining the titanium species and the chlorinating agent with the thermally treated magnesium chloride.5. The heterogeneous procatalyst of claim 1 , wherein the heterogeneous procatalyst comprises the ...

ZIEGLER-NATTA CATALYST SYSTEM HAVING A TREATED MAGNESIUM CHLORIDE COMPONENT

A procatalyst including a preformed magnesium chloride catalyst support having a surface area of greater than or equal to 100 m/g, a titanium containing component, a chlorinating agent, and a hydrocarbon soluble transition metal compound having an oxidation state of greater than or equal to 5+. The hydrocarbon soluble transition metal compound having an oxidation state of greater than or equal to 5+ is not vanadium. 1. A procatalyst , comprising:{'sup': '2', 'a preformed magnesium chloride catalyst support having a surface area of greater than or equal to 100 m/g;'}a titanium containing component;a chlorinating agent; anda hydrocarbon soluble transition metal compound having an oxidation state of greater than or equal to 5+, wherein the hydrocarbon soluble transition metal compound having an oxidation state of greater than or equal to 5+ does not comprise vanadium.2. The procatalyst of claim 1 , wherein the hydrocarbon soluble transition metal compound having an oxidation state of greater than or equal to 5+ is an aliphatic hydrocarbon soluble transition metal compound having an oxidation state of greater than or equal to 5+.3. The procatalyst of claim 1 , wherein the preformed magnesium chloride catalyst support has a surface area of greater than or equal to 150 m/g.4. The procatalyst of claim 1 , wherein the preformed magnesium chloride catalyst support is a MgClslurry in a hydrocarbon solvent.5. The procatalyst of claim 4 , wherein the MgClslurry is a reaction product of an alkylmagnesium compound solution in a hydrocarbon solvent and a chloride source without separation of the hydrocarbon solvent.6. The procatalyst of claim 1 , wherein the titanium containing component is titanium chloride.7. The procatalyst of claim 1 , wherein the titanium containing component is TiCl(OR) claim 1 , where R is C-Chydrocarbyl claim 1 , or combinations thereof claim 1 , x=0 claim 1 , 1 claim 1 , 2 claim 1 , 3 claim 1 , or 4.8. The procatalyst of claim 1 , wherein the chlorinating ...

Solution polymerization process

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.

Olefin polymerization catalyst comprising cyclotriveratrylene and derivatives thereof

The present invention discloses a Ziegler-Natta catalyst system for olefin polymerization, comprising at least one compound represented by formula (I) as (i) an internal electron donor, (ii) an external electron donor, or (iii) the both, wherein M 1 , M 2 , M 3 , M 4 , M 5 , M 6 , M 1 ′, M 2 ′, M 3 ′, M 4 ′, M 5 ′ and M 6 ′ are each independently selected from the group consisting of hydrogen, hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, —R 1 and —OR 2 , wherein R 1 and R 2 are each independently a C 1 -C 10 hydrocarbyl, which is unsubstituted or substituted by a substituent selected from the group consisting of hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, C 1 -C 10 alkoxy and heteroatoms; and wherein, when among M 1 -M 6 and M 1 ′-M 6 ′, any two adjacent groups on the same phenyl ring are each independently selected from the group consisting of R 1 and —OR 2 , the two adjacent groups may optionally be linked to form a ring, with a proviso that M 1 , M 2 , M 3 , M 4 , M 5 , M 6 , M 1 ′, M 2 ′, M 3 ′, M 4 ′, M 5 ′ and M 6 ′ are not simultaneously hydrogen.

CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

The present disclosure relates to a solid catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of the formula (I): 2. The catalyst component of claim 1 , wherein A is a bivalent bridging group with a chain length between the two free radicals of 1-10 atoms.3. The catalyst component of claim 1 , wherein the bridging group has the formula —(ZR)— in which claim 1 , independently claim 1 , Z is selected from the group consisting of C claim 1 , Si claim 1 , Ge claim 1 , O claim 1 , N claim 1 , S and P claim 1 , the Rgroups claim 1 , equal to or different from each other claim 1 , are hydrogen or C-Chydrocarbon radicals claim 1 , optionally containing a heteroatom selected from the group consisting of halogen claim 1 , P claim 1 , S claim 1 , N claim 1 , O and Si claim 1 , which can be fused together to form one or more cycles claim 1 , m is a number satisfying the valences of Z and n is an integer ranging from 1 to 10.4. The catalyst component of claim 3 , wherein the bridging group is the one based on aromatic groups which through the carbon ring atoms can link the two oxygen of formula (I).5. The catalyst component of claim 4 , wherein the bridging group is selected from phenyl groups claim 4 , optionally substituted with halogens or C-Calkyl radicals claim 4 , bridging the oxygen atoms in position 1 claim 4 ,2 or 1 claim 4 ,3 or 1 claim 4 ,4 and from naphthalene groups claim 4 , optionally substituted by bridging the oxygen groups in position 1 claim 4 ,2 or 2 claim 4 ,3 or 1 claim 4 ,8.7. The catalyst component of claim 6 , wherein at least two of the Rgroups are different from hydrogen.8. The catalyst component of claim 7 , wherein the aromatic ring of formula (II) is substituted in position 3 claim 7 ,5 with Rgroups selected from C-Calkyl groups.9. The catalyst component of claim 1 , wherein the Rand Rgroups are independently selected from C-Calkyl groups claim 1 , C-Caryl groups claim 1 , C-Ccycloalkyl groups claim 1 , and C ...

ZIEGLER-NATTA CATALYST AND PREPARATION THEREOF

The present invention relates to a solid Ziegler-Natta catalyst component comprising transition metal compound of Group 4 to 6, and a polymeric nitrogen containing electron donor, preferably selected from linear or branched polyalkyleneimines or isomers or mixtures therefrom. The invention relates further to the use of said polymeric internal electron donor in a solid Ziegler-Natta catalyst component, a catalyst comprising said solid Ziegler-Natta catalyst component and a cocatalyst, and use of said catalyst in producing Cto Colefin (co)polymers. 1. A solid Ziegler-Natta catalyst component comprising transition metal compound of Group 4 to 6 , and a nitrogen containing polymeric internal electron donor.2. The solid Ziegler-Natta catalyst component according to claim 1 , wherein the polymeric internal electron donor is selected from linear or branched polyalkyleneimines of formula I claim 1 , or isomers or mixtures therefrom{'br': None, 'sub': 2', '2', 'a', '2', 'b', 'n', '2', 'c', 'm', '2', 'd', '2, 'sup': '1', 'HN—(CH)—[(CH)—(N(R)-L-)-(CH)]—(CH)—NH\u2003\u2003(I)'} each a, b, c and d is an integer of 1 to 4,', 'n is an integer 3 to 7,', 'm is an integer 2 to 100,', 'each L is independently an alkylene of 1 to 4 C-atoms,', {'sup': 1', '2', '3, 'sub': z', 'y, 'each Ris independently H, or a group -L-(N(R)(R), wherein L is as defined above,'}, {'sup': 2', '3, 'sub': 1', '4, 'each Rand Rare independently H or an Cto Camino alkyl, and'}, 'z and y are 0, 1 or 2, provided that the sum z+y is 2., 'wherein,'}3. The solid Ziegler-Natta catalyst component according to claim 2 , wherein each a claim 2 , b claim 2 , c and d are 2 and L is ethylene.4. The solid Ziegler-Natta catalyst component according to claim 2 , wherein at least one of Rin formula (I) is a group -L-(N(R)(R).5. The solid Ziegler-Natta catalyst component according to claim 2 , wherein at least one of Rand Ris an amino Cto Calkyl.6. The solid Ziegler-Natta catalyst component according to claim 1 , wherein the ...

NON-PHTHALATE CATALYST SYSTEM AND ITS USE IN THE POLYMERIZATION OF OLEFINS

This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds. 2. The non-phthalate catalyst system of claim 1 , wherein the transition metal is titanium claim 1 , the Group 2 metal is magnesium claim 1 , and the halogen is chloride.3. The non-phthalate catalyst system of claim 1 , wherein the catalyst system further comprises an organoaluminum cocatalyst selected from the group consisting of alkylaluminum claim 1 , alkylaluminum hydride claim 1 , alkylaluminum halide claim 1 , and alkylaluminum alkoxide.4. The non-phthalate catalyst system of claim 1 , wherein the internal electron donor compound is a diester compound claim 1 , wherein m′ is 0-3 claim 1 , and each Ris a C-Calkyl claim 1 , C-Calkenyl claim 1 , C-Ccycloalkyl claim 1 , C-Ccycloalkenyl claim 1 , aryl claim 1 , or heteroaryl; each of these groups can be further substituted by halogen claim 1 , C-Calkyl claim 1 , or C-Calkoxy.6. The non-phthalate catalyst system of claim 5 , wherein the diester compound is selected from the group consisting of 1 claim 5 ,8-naphthyl dibenzoate; 1 claim 5 ,8-naphthyl di-4-methylbenzoate; 1 claim 5 ,8-naphthyl di-3-methylbenzoate; 1 claim 5 ,8-naphthyl di-2-methylbenzoate; 1 claim 5 ,8-naphthyl di-4-ethylbenzoate; 1 claim 5 ,8-naphthyl di-4-n-propylbenzoate; 1 claim 5 ,8-naphthyl di-4-isopropylbenzoate; 1 claim 5 ,8-naphthyl di-4-n-butylbenzoate; 1 claim 5 ,8-naphthyl di-4-isobutylbenzoate; 1 claim 5 ,8-naphthyl di-4-t-butylbenzoate; 1 claim 5 ,8-naphthyl di-4-phenylbenzoate; 1 claim 5 ,8-naphthyl di-4-fluorobenzoate; 1 claim 5 ,8-naphthyl di-3-fluorobenzoate; 1 claim 5 ,8-naphthyl di-2-fluorobenzoate; 1 claim 5 ,8-naphthyl di-4-chlorobenzoate; 1 claim 5 ,8-naphthyl di-3-chlorobenzoate; ...

PROCESS TO PREPARE A SOLID SUPPORT FOR A PROCATALYST SUITABLE FOR POLYMERIZATION OF OLEFINS

The invention relates to a process for preparing a solid support for a procatalyst suitable for preparing a catalyst composition for olefin polymerization, said process for preparing said solid support comprising reacting a compound RMgXwith a silane compound Si(OR)(R)in a solvent and mixing the resulting mixture with a mixing device and at a certain mixing speed in order to give a solid support Mg(OR)Xsaid solid support obtained having an average particle size of at most m, preferably at most or m, more preferably at most m. The invention further relates to a solid support, a process for preparing a procatalyst and said procatalyst as well as polyolefins obtained using said procatalyst. 1. A process for preparing a solid support for a procatalyst for preparing a catalyst composition for olefin polymerization , said process for preparing said solid support comprising reacting:{'sup': 4', '4, 'sub': z', '2-z, 'claim-text': [{'sup': '4', 'Ris each independently linear, branched or cyclic hydrocarbyl group independently selected from alkyl, alkenyl, aryl, aralkyl, alkoxycarbonyl or alkylaryl groups, and one or more combinations thereof; wherein said hydrocarbyl group may be substituted or unsubstituted and may contain one or more heteroatoms;'}, {'sup': '4', 'Xis each independently selected from the group of consisting of fluoride (F—), chloride (Cl—), bromide (Br—) or iodide (I—);'}, 'z is in a range of larger than 0 and smaller than 2, being 0 Подробнее

A MULTI-STAGE PROCESS FOR PRODUCING A C2 TO C8 OLEFIN POLYMER COMPOSITION

The present invention relates to a multi-stage process for producing a Cto Colefin polymer composition in a process comprising at least two reactors, wherein a pre-polymerized solid Ziegler-Natta catalyst is prepared by carrying out an off-line pre-polymerization of a solid Ziegler-Natta catalyst component with a Cto Colefin monomer before feeding to the polymerization process. 1: A continuous multi-stage process for producing a Cto Colefin polymer composition in a process comprising at least two reactors , the process comprising the steps of:{'sub': 2', '8', '2', '8, 'a) introducing a stream of a pre-polymerized solid Ziegler-Natta catalyst a monomer of Cto Colefin into a first polymerization reactor, thereby producing a first Cto Colefin polymer;'}{'sub': 2', '8, 'b) withdrawing a stream comprising the first Cto Colefin polymer from the first polymerization reactor and passing it into a second polymerization reactor;'}{'sub': 2', '8', '2', '8', '2', '8, 'c) introducing a stream of a monomer of Cto Colefin into the second polymerization reactor, thereby producing in the second polymerization a first polymer mixture comprising the first Cto Colefin polymer and a second polymer of the Cto Colefin monomer in the second polymerization reactor; and'}d) withdrawing a stream comprising the first polymer mixture from the second polymerization reactor;{'sub': 2', '4', '90', '10', '50, 'wherein the pre-polymerized solid Ziegler-Natta catalyst is prepared by off-line pre-polymerization of a solid Ziegler-Natta catalyst component with a Cto Colefin monomer before feeding to the polymerization process, and wherein the pre-polymerized solid Ziegler-Natta catalyst has a particle size distribution span ((d−d)/d) of below 1.5.'}2: The continuous multi-stage process of according to claim 1 , wherein the solid Ziegler-Natta catalyst component comprises:(a1) a compound of a transition metal (TM), which transition metal is selected from one of the groups 4 to 6 of the periodic table ( ...

POLYETHYLENE COMPOSITION FOR HIGH PRESSURE RESISTANT PIPES WITH IMPROVED HOMOGENEITY

The present invention relates to a polyethylene composition comprising a base resin having a density of from 952.0 kg/mto 960.0 kg/m, determined according to ISO 1183, wherein the polyethylene composition has a melt flow rate MFR(190° C., 21.16 kg), of from 1.0 to 7.5 g/10 min, determined according to ISO 1133, a complex viscosity at a frequency of 0.05 rad/s eta0.05 of from 750 kPa #s to 1900 kPa #s, determined according to ISO 6721-1 and ISO 6721-10, and a white spot rating of not more than 12.0, determined according to ISO 18553, a polyethylene composition obtainable by a multi-stage process, a process for producing said polyethylene composition, an article, such as a pipe or pipe fitting, comprising said polyethylene composition and the use of said polyethylene composition for the production of an article. 1. A polyethylene composition comprising{'sup': 3', '3, 'a base resin having a density of from 952.0 kg/mto 960.0 kg/m, determined according to ISO 1183, wherein'}{'sub': 21', '0.05, 'the polyethylene composition has a melt flow rate MFR(190° C., 21.16 kg), of from 1.0 to 7.5 g/10 min, determined according to ISO 1133, a complex viscosity at a frequency of 0.05 rad/s etaof from 750 kPa·s to 1900 kPa·s, determined according to ISO 6721-1 and ISO 6721-10, and a white spot rating of not more than 12.0, determined according to ISO 18553.'}2. The polyethylene composition according to claim 1 , wherein the base resin comprises an ethylene copolymer having ethylene monomer units and comonomer units selected from at least one alpha-olefin having from 4 to 12 carbon atoms.3. The polyethylene composition according to claim 1 , wherein the polyethylene composition has a content of comonomer units selected from at least one alpha-olefin having from 4 to 12 carbon atoms claim 1 , of from 0.01 to 0.50 mol % claim 1 , based on the total molar amount of monomer units in the polyethylene composition.4. The polyethylene composition according to having a weight average molecular ...

SUPPORTED NONMETALLOCENE CATALYSTS, PREPARATION AND USE THEREOF

Disclosed is a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst is characterized by a high catalyst activity for olefin polymerization and a significant monomer effect. Further disclosed is use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization. The polymer produced therewith is characterized by superior particle morphology, a high bulk density, and/or a narrow molecular weight distribution. 1. A process for producing a supported nonmetallocene catalyst , comprising the steps of: dissolving a magnesium compound in a first solvent in the presence of an alcohol , to obtain a magnesium compound solution; mixing a porous carrier with the magnesium compound solution to obtain a first slurry , and drying the first slurry , or introducing into the first slurry a precipitating agent , to obtain a Mg-containing carrier , OR drying the magnesium compound solution , or introducing into the magnesium compound solution a precipitating agent , to obtain a Mg-containing carrier; contacting the Mg-containing carrier with a silicon compound represented by the following formula (X) and a chemical treating agent selected from the group consisting of a Group IVB metal compound , to obtain a modified Mg-containing carrier;{'br': None, 'sub': m', '4-m, 'Si(OR)X\u2003\u2003(X)'}{'sub': 1', '8', '1', '4, 'wherein Rs may be identical to or different from one another, each independently selected from a C-Cstraight chain or branched alkyl, preferably selected from a C-Cstraight chain or branched alkyl, more preferably ethyl, m is 0, 1, 2, 3, or 4, Xs may be identical to or different from one another, each independently selected from a halogen atom, preferably Cl,'}and, contacting the modified Mg-containing carrier with a nonmetallocene complex in the presence of a second solvent, to obtain the supported nonmetallocene catalyst,optionally further comprising the step of pre-contacting the Mg-containing carrier ...

PRODUCTION METHOD OF OLEFIN (CO)POLYMER CONTAINING CONSTITUENT UNIT DERIVED FROM 1-BUTENE

The purpose of the present invention is to provide a method for efficiently producing an olefin (co)polymer containing a constituent unit derived from 1-butene, the (co)polymer having a molecular weight that is sufficiently high even for high temperature conditions that are beneficial for industrial production methods. This purpose can be achieved by means of a method for producing an olefin (co)polymer containing a constituent unit derived from 1-butene, wherein at least 1-butene and, if necessary, an α-olefin having 2 or more carbon atoms (excluding 1-butene) and other monomers are (co)polymerized in the presence of an olefin polymerization catalyst that contains (A) a crosslinked metallocene compound represented by general formula [I] and (B) at least one type of compound selected from among (b-1) an organic aluminum oxy compound, (b-2) a compound that forms an ion pair upon a reaction with the crosslinked metallocene compound (A), and (b-3) an organic aluminum compound, at a polymerization temperature of 55-200° C. and a polymerization pressure of 0.1-5.0 MPaG. 2. The production method of an olefin copolymer containing structural units derived from 1-butene according to claim 1 , wherein in General Formula [I] claim 1 , Ris a 1-adamantyl group.3. The production method of an olefin copolymer containing structural units derived from 1-butene according to claim 1 , wherein in General Formula [I] claim 1 , Rand Rare hydrocarbon groups having 4 to 10 carbon atoms.4. The production method of an olefin copolymer containing structural units derived from 1-butene according to claim 1 , wherein in General Formula [I] claim 1 , Rand Rare hydrogen atoms.5. The production method of an olefin copolymer containing structural units derived from 1-butene according to claim 1 , wherein in General Formula [I] claim 1 , Ris a hydrocarbon group having 1 to 20 carbon atoms.6. The production method of an olefin copolymer containing structural units derived from 1-butene according to ...

LONG-CHAIN BRANCHED POLYPROPYLENE FOR FOAM APPLICATION

The invention relates to a propylene homopolymer or copolymer having a comonomer in the copolymer selected from ethylene, C-C-alpha olefin, said propylene homopolymer or copolymer being free of phthalic compound. It further relates to a long-chain branched propylene homopolymer or copolymer (b-PP) having a comonomer in the copolymer selected from ethylene, C-C-alpha olefins, said long-chain branched propylene homopolymer or copolymer (b-PP) being free of phthalic compound. As well as their production processes and uses. 1- Propylene homopolymer or copolymer having a comonomer in the copolymer selected from ethylene , C-C-alpha olefin and any combination thereof , with a comonomer content in the copolymer in the range of 0.1 to 7.0 wt % , a xylene cold soluble (XCS) fraction in the range of 0.8 to 15.0 wt % , an MFRin the range of 0.1 to 1.5 g/10 min where MFRis the melt flow rate measured according to ISO 1133 at 230° C. and a load of 2.16 kg , said propylene homopolymer or copolymer characterized in thata) the porosity is higher than 8.0%,b) the median particle size d50 is in the range of 150 to 1500 μm,c) the top-cut particle size d95 is in the range of 500 to 4000 μm andd) said propylene homopolymer or copolymer is free of phthalic compound.3- Propylene homopolymer or copolymer according to claim 2 , characterized in that the non-phthalic compound is selected from (di)esters of non-phthalic carboxylic (di)acids wherein the (di)ester belongs to the group comprising malonates claim 2 , maleates claim 2 , succinates claim 2 , citraconates claim 2 , glutarates claim 2 , cyclohexene-1 claim 2 ,2-dicarboxylates and benzoates and derivatives of any of them and/or mixtures of any of them.4- Polypropylene composition comprising the propylene homopolymer and/or copolymer according to anyone of to and at least one or more additives claim 2 , characterized in that the polypropylene composition is free of phthalic compound.5- Long-chain branched propylene homopolymer or ...

POLYETHYLENE COMPOSITION FOR BLOW MOLDING HAVING HIGH SWELL RATIO AND IMPACT RESISTANCE

A polyethylene composition for producing blow-molded hollow articles, having the following features: 1. A polyethylene composition having the following features:{'sup': '3', '1) density from greater than 0.957 to 0.965 g/cmdetermined according to ISO 1183-1 at 23° C.;'}2) ratio MIF/MIP from 12 to 25, where MIF is the melt flow index at 190° C. with a load of 21.60 kg, and MIP is the melt flow index at 190° C. with a load of 5 kg, both determined according to ISO 1133-1;3) MIF from 18 to 40 g/10 min.;4) Mw equal to or greater than 230,000 g/mol, where Mw is the weight-average molecular weight, measured by GPC;{'sub': 0.02', '0.02, '5) ηfrom 35,000 to 55,000 Pa·s; wherein ηis the complex shear viscosity at an angular frequency of 0.02 rad/s, measured with dynamic oscillatory shear in a plate-plate rotational rheometer at a temperature of 190° C.;'}{'sub': 'g', '6) long-chain branching index, LCBI, equal to or greater than 0.55, wherein LCBI is the ratio of the measured mean-square radius of gyration R, measured by GPC-MALLS, to the mean-square radius of gyration for a linear PE having the same molecular weight; and'}7) ratio (η0.02/1000)/LCBI, which is η0.02 divided by 1000 and LCBI, from 55 to 75.2. The polyethylene composition of claim 1 , comprising:one or more ethylene copolymers.3. The polyethylene composition of prepared with a Ziegler-Natta polymerization catalyst.4. The polyethylene composition of claim 3 , wherein the Ziegler-Natta polymerization catalyst comprises:the product of reaction of:{'sub': 2', '2, 'a) a solid catalyst component comprising a Ti compound supported on MgCl, the component being obtained by contacting the titanium compound with the MgCl, or a precursor Mg compound, optionally in the presence of an inert medium, thereby obtaining an intermediate product a′), then subjecting a′) to prepolymerization and contact with an electron donor compound;'}b) an organo-Al compound; and optionallyc) an external electron donor compound.5. The ...

CATALYST SUPPORT AND RELATED PROCESSES

The present invention describes a catalyst support, which is used as an inorganic carrier for a Ziegler-Nata catalyst (ZN), using a modified spray cooling method. Such a catalyst support is prepared from alcoholic solutions of (a) an inorganic compound, in which the inorganic compound is a magnesium compound and (b) an inorganic compound and one or more additives. The solutions are prepared at a temperature below 100° C., carried through a nozzle placed inside a reactor, and sprayed into droplets forming a solid precipitate, which is generally spherical, when in contact with an inert hydrocarbon solvent at low temperature. The obtained catalyst support is reacted with a titanium compound, preferably titanium tetrachloride, in order to produce an active catalyst for olefin polymerization. 1. A catalyst support component comprising an inorganic compound , an alcohol ROH , and an additive.2. The catalyst support component of claim 1 , having at least a first thermal transition peak between 112° C. and 154° C. as shown by DSC.3. The catalyst support component of claim 2 , having a second thermal transition peak between 181° C. and 215° C. as shown by DSC.4. The catalyst support component of claim 3 , having a third thermal transition peak between 235° C. and 248° C. as shown by DSC.5. The catalyst support component of claim 1 , wherein the alcohol ROH consists of a R chosen from a C1-C18 hydrocarbon group.6. The catalyst support component of claim 1 , wherein an additive is a fluorine-based additive.7. The catalyst support component of claim 1 , wherein the additive is selected from one or more of hydrofluoroalkenes (HFAs) claim 1 , polyaryletherketones (PAEKs) derivative claim 1 , poly(oxy-1 claim 1 ,2-ethanediyl) derivatives claim 1 , aliphatic polyethers claim 1 , polylactic acid claim 1 , or polysorbates.8. The catalyst support component of claim 6 , wherein the additive is fluorine-based and selected from the group consisting essentially of perfluoropentane; 1 ...

ETHYLENE ALPHA-OLEFIN COPOLYMERS AND METHODS

The present disclosure generally relates to ethylene alpha-olefin copolymers and methods of making ethylene alpha-olefin copolymers. The ethylene alpha-olefin copolymers may have a density of about 0.915 g/mL to about 0.918 g/mL, a rheological polydispersity index greater than 0.8, a melt index of about 0.4 dg/10 min to about 2.0 dg/10 min, and/or a CEF Tof 84° C. or less. The ethylene alpha-olefin copolymers may be made by combining an ethylene monomer and one or more alpha-olefin monomers in the presence of a catalyst, such as a Ziegler-Natta catalyst. 1. An ethylene alpha-olefin copolymer comprising:an ethylene monomer; andan alpha-olefin monomer;wherein the ethylene alpha-olefin copolymer comprises—(i) a density of about 0.915 g/mL to about 0.918 g/mL,(ii) a rheological polydispersity index greater than 0.8,(iii) a melt index of about 0.4 dg/10 min to about 2.0 dg/10 min, and{'sub': '50', '(iv) a CEF Tof 84° C. or less.'}2. The ethylene alpha-olefin copolymer of claim 1 , wherein the alpha-olefin monomer comprises one or more C-Calpha-olefins.3. The ethylene alpha-olefin copolymer of claim 2 , wherein the alpha-olefin monomer comprises a Calpha-olefin.4. The ethylene alpha-olefin copolymer of claim 3 , wherein the Calpha-olefin comprises hex-1-ene.5. The ethylene alpha-olefin copolymer of claim 1 , wherein the ethylene alpha-olefin copolymer has a density of about 0.915 g/mL to about 0.917 g/mL.6. The ethylene alpha-olefin copolymer of claim 1 , wherein the ethylene alpha-olefin copolymer has a density of about 0.916 g/mL.7. The ethylene alpha-olefin copolymer of claim 1 , wherein the ethylene alpha-olefin copolymer has a melt index of about 0.4 dg/10 min to about 1.0 dg/10 min.8. The ethylene alpha-olefin copolymer of claim 1 , wherein the ethylene alpha-olefin copolymer is film-shaped.9. A method of producing an ethylene alpha-olefin copolymer comprising:contacting an ethylene monomer and one or more alpha-olefin monomers in the presence of a Ziegler-Natta ...

Olefin Polymerization Catalyst Component Having Carbonate Compounds

The present invention relates to Ziegler-Natta catalyst components for olefin polymerization employing specific carbonate compounds as an element of solid catalyst composition in conjunction with at least one or more internal donor compounds, for producing polyolefins, particularly polypropylene and ethylene-propylene block co-polymer, which exhibits substantially high rubber content with higher stereo-regularity and hydrogen response. 2. The solid catalyst component of claim 1 , wherein Ri and R2 are linked to form one or more saturated or unsaturated monocyclic or polycyclic rings.3. The solid catalyst component of claim 1 , wherein the carbonate compound is a dialkylcarbonate.4. The solid catalyst component of claim 1 , wherein the carbonate compound is diethylcarbonate.5. The solid catalyst component of claim 1 , wherein the carbonate compound is selected from diethylcarbonate claim 1 , dimethylcarbonate claim 1 , diisopropylcarbonate claim 1 , dipropylcarbonate claim 1 , dibutylcarbonate claim 1 , ditertbutylcarbonate claim 1 , dicyclopentylcarbonate claim 1 , dicyclohexylcarbonate claim 1 , diphenylcarbonate claim 1 , dibenzylcarbonate propylene carbonate claim 1 , ethylene carbonate claim 1 , or trimethylene carbonate.6. The solid catalyst component of claim 1 , wherein the at least one internal electron donor comprises a first internal electron donor and a second internal electron donor.7. The solid catalyst component of claim 6 , wherein the first internal electron donor is a phthalate compound claim 6 , and wherein the second internal electron donor is a 1 claim 6 ,3 diether compound.8. The solid catalyst component of claim 1 , wherein the at least one internal electron donor comprises a 1 claim 1 ,3 diether compound.9. The solid catalyst component of claim 1 , wherein the at least one internal electron donor comprises an ester of phthalic acid.10. The solid catalyst component of claim 1 , wherein the at least one internal donor comprises a malonate ...

In-line polyolefin based adhesive compositions having graft polyolefin/elastomer copolymers

The present disclosure relates to adhesive compositions, processes of forming adhesive compositions, and multi-layer films. The processes generally include contacting an olefin monomer with a catalyst system within a polymerization zone to form an olefin based polymer under polymerization conditions sufficient to form the olefin based polymer, the catalyst system including a metal component generally represented by the formula: MR x ; wherein M is a transition metal, R is a halogen, an alkoxy, or a hydrocarboxyl group and x is the valence of the transition metal, wherein the catalyst system further includes an internal donor (ID) comprising a C 3 -C 6 cyclic ether; and withdrawing the olefin based polymer from the polymerization zone; and melt blending the olefin based polymer with a graft (polyolefin/elastomer) copolymer to form a polyolefin based adhesive composition, wherein the process is an in-line process.

POLETHYLENE COMPOSITION HAVING HIGH SWELL RATIO

A polyethylene composition for producing blow-molded hollow articles, having the following features: 1. A polyethylene composition having the following features:{'sup': '3', '1) density from 0.940 to 0.955 g/cmdetermined according to ISO 1183 at 23° C.;'}2) ratio MIF/MIP from 12 to 30, where MIF is the melt flow index at 190° C. with a load of 21.60 kg and MIP is the melt flow index at 190° C. with a load of 5 kg, both determined according to ISO 1133;3) Mz from 2,000,000 to 4,500,000 g/mol, where Mz is the z-average molecular weight measured by GPC;{'sub': 0.02', '0.02, '4) ηfrom 160,000 to 300,000 Pa·s wherein ηis the complex shear viscosity at an angular frequency of 0.02 rad/s, measured with dynamic oscillatory shear in a plate-plate rotational rheometer at a temperature of 190° C.; and'}{'sub': 'g', '5) long-chain branching index, LCBI, equal to or greater than 0.75, wherein LCBI is the ratio of the measured mean-square radius of gyration R, measured by GPC-MALLS, to the mean-square radius of gyration for a linear PE having the same molecular weight.'}2. The polyethylene composition of comprising:one or more ethylene copolymers.3. The polyethylene composition of prepared with a Ziegler-Natta polymerization catalyst.4. The polyethylene composition of claim 3 , wherein the Ziegler-Natta polymerization catalyst comprises:the product of reaction of:{'sub': 2', '2, 'a) a solid catalyst component comprising a Ti compound supported on MgCl, the component being obtained by contacting the titanium compound with the MgCl, or a precursor Mg compound, optionally in the presence of an inert medium, thereby obtaining an intermediate product a′), then subjecting a′) to pre-polymerization and contact with an electron donor compound;'}b) an organo-Al compound; and optionallyc) an external electron donor compound.6. The polyethylene composition of claim 1 , comprising:{'sup': '3', 'A) 30-70% by weight of an ethylene homopolymer or copolymer with density equal to or greater than ...

Ethylene/Alpha-Olefin Copolymers for Better Optical and Mechanical Properties and Processability of Film Made Therefrom

A Ziegler-Natta catalyzed ethylene/alpha-olefins copolymer is provided having sporadic long chain branches and reversed comonomer composition distribution or short chain branching distribution (SCBD) in the high molecular weight fractions. According to the invention, polyethylene film made with the inventive copolymer has a balance of improved physical, optical, mechanical properties as well as processability. In one aspect, the film includes a 1% secant modulus of greater than 25,000 psi, a film haze of less than 10, a film clarity of greater than 90, a dart impart resistance of greater than 500 g/mil, and a MD tear strength of greater than 500 g/mil. 1. A Ziegler-Natta catalyzed ethylene/alpha-olefins copolymer , wherein the copolymer comprises the following properties:density of between 0.890 and 0.935 g/cc;C4-C10 comonomer content of between 1 and 20 wt %;melt index (I2) of between 0.5 and 10 dg/min;{'sub': z', 'w, 'ratio (M/M) of z-average molecular weight (Mz) to weight average molecular weight (Mw) of between 3.0 and 10;'}melting point over 124° C. across the density of 0.890 to 0.935 g/cc;sporadic long chain branches with J-C α value of less than 5;{'sup': '−1', 'melt strength index, defined as the ratio of storage modulus to loss modulus (G′/G″) at a shear rate of 0.03 s, is less than 5;'}weight average molecular weight Mw of less than 200,000 g/mol;a fraction soluble below about 30° C. of greater than 12 wt %, determined by CRYSTAF, having a weight average molecular weight Mw of higher than 90,000 g/mol, determined by gel permeation chromatography (GPC);a fraction soluble between about 60° C. and 75° C. of less than 35 wt %, determined by CRYSTAF;greater than 13.5 wt % of a polymer component having an elution temperature below about 30° C., determined by temperature rising elution fractionation (TREF) analysis;greater than 15 wt % of a polymer component having an elution temperature below about 40° C., determined by TREF analysis, and an average high ...

HETEROPHASIC PROPYLENE COPOLYMER

The invention relates to a process for the preparation of a final heterophasic propylene copolymer (A) having a final melt flow rate in the range from 65 to 110 dg/min, comprising visbreaking an intermediate heterophasic propylene copolymer (A′) having an intermediate melt flow rate, which intermediate melt flow rate is lower than the final melt flow rate, to obtain the final heterophasic propylene copolymer, 2. The process according to claim 1 , wherein the intermediate heterophasic propylene copolymer is prepared using a phthalate-free catalyst claim 1 , wherein the phthalate-free catalyst has a phthalate content of less than 150 ppm claim 1 , based on the total weight of the catalyst.4. The process according to claim 1 , wherein the α-olefin in the ethylene-α-olefin copolymer is propylene.5. The process according to claim 1 , the propylene-based matrix of the intermediate heterophasic propylene copolymer has a molecular weight distribution (M/M) in the range from 4.0 to 5.5 claim 1 , wherein Mw stands for the weight average molecular weight and Mn stands for the number average molecular weight are measured by SEC analysis.6. The process according to claim 1 , wherein the final heterophasic propylene copolymer shows an emission of less than 1800 mg/kg heterophasic propylene copolymer as determined by isopropanol extraction and analysis of the extract using PTV-GC-MS.7. The process according to claim 1 , wherein the shifting ratio claim 1 , which is the ratio of the final melt flow rate to the intermediate melt flow rate is in the range from 1.3 to 2.5.8. A heterophasic propylene copolymer (A) obtained by the process of .9. The heterophasic propylene copolymer according to claim 8 , wherein the impact strength of the final heterophasic propylene copolymer (A) is at least 3.5 kJ/mas determined at 23° C. according to ISO 180 4A.10. A composition comprising the heterophasic propylene copolymer (A) of .12. The composition according to claim 11 , having a flexural ...

Olefin polymerization Ziegler-Natta catalyst components and process for the production of olefin polymers therewith

The present invention relates to a solid Ziegler-Natta catalyst component for olefin polymerization containing an organosilicon element in combination with one or more internal electron donors. The catalyst components, according to the present invention, are able to produce polypropylene polymers with higher stereo-regularity. The present invention also provides a phthalate-free catalyst system capable of producing polypropylene with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.

POLYETHYLENE COMPOSITION HAVING ENVIRONMENTAL STRESS CRACKING RESISTANCE

A polyethylene composition for producing blow-molded hollow articles, having the following features: 2. The polyethylene composition of claim 1 , comprising:one or more ethylene copolymers.3. The polyethylene composition of claim 1 , obtained by using a Ziegler-Natta polymerization catalyst.4. The polyethylene composition of claim 3 , wherein the Ziegler-Natta polymerization catalyst comprises:the product of a reaction of:{'sup': 'I', 'A) a solid catalyst component comprising Ti, Mg, chlorine and one internal electron donor ED selected from esters of aliphatic monocarboxylic acids (EAA) and another internal donor EDselected from cyclic ethers (CE) in an amount such that the EAA/CE molar ratio ranges from 0.02 to less than 20;'}B) an organo-Al compound; and optionallyC) an external electron donor compound.5. The polyethylene composition of claim 1 , having at least one of the following additional features:a MIF from 4 to 15 g/10 min.;{'sub': 0.02', '0.02, 'a ratio (η/1000)/LCBI, which is between ηdivided by 1000 and LCBI, equal to or greater than 150;'}a comonomer content equal to or less than 2% by weight, with respect to the total weight of the composition; anda LCBI equal to or greater than 0.65.6. The polyethylene composition of claim 1 , comprising:{'sup': '3', 'A) 30-70% by weight of an ethylene homopolymer or copolymer with density equal to or greater than 0.960 g/cmand melt flow index MIE at 190° C. with a load of 2.16 kg, according to ISO 1133, of 2 g/10 min. or higher; and'}B) 30-70% by weight of an ethylene copolymer having a MIE value lower than the MIE value of A).7. An article of manufacture comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the polyethylene composition of .'}8. The article of manufacture according to claim 7 , wherein the article is a blow-molded hollow article.9. A process for preparing the polyethylene composition of claim 1 , wherein the polymerization steps are carried out in the presence of a Ziegler-Natta ...

PROCESS FOR PREPARING POLYPROPYLENE COMPOSITION

The invention relates to a process for producing a polypropylene composition by sequential polymerization said polypropylene composition having low sealing initiation temperature (SIT) and high melting point (Tm), presenting thus a broad sealing window. 1. Process for producing a polypropylene composition by a sequential polymerization process wherein the polypropylene composition is a binary blend comprising two propylene polymer fractions PPF1 and PPF2 and wherein the process comprises at least two reactors connected in series , said process comprising the steps:{'sub': 4', '10, 'a) polymerizing in a first reactor (R-1), propylene and one comonomer selected from C-Calpha-olefin to obtain a propylene polymer fraction (PPF1), the first reactor (R-1) being a slurry reactor and the propylene polymer fraction (PPF1) being a propylene copolymer,'}b) transferring the propylene polymer fraction (PPF1) and unreacted comonomers of the reactor (R-1) into a second reactor (R-2), the second reactor (R-2) being a first gas-phase reactor-1 (GPR-1),{'sub': 4', '10, 'c) polymerizing in the gas-phase reactor-1 (GPR-1) propylene, ethylene and one comonomer selected from C-Calpha-olefin in the presence of the propylene polymer fraction (PPF1), to obtain a propylene polymer fraction (PPF2), the propylene polymer fraction (PPF2) being a polypropylene terpolymer,'}d) forming the polypropylene composition from the propylene polymer fraction (PPF2) and the propylene polymer fraction (PPF1),{'sub': 4', '10', '4', '10', '4', '10', '4', '10', '4', '10', '4', '10, 'e) recovering the polypropylene composition wherein the mol ratio of C-Calpha-olefin content in the propylene copolymer fraction PPF1 (C-C-PPF1)/C-Calpha-olefin content in the polypropylene composition (C-C-T) [(C-C-PPF1)/(C-C-T)] is in the range of 0.10 to 0.95.'}and wherein the polypropylene composition has a melting temperature (Tm) in the range of 135 to 160° C. as determined by DSC according to ISO 11357.2. The process ...

OFF-LINE FILTER FREE ZIEGLER-NATTA CATALYST PREPARATION

The various embodiments provide, a magnesium titanium polymerization procatalyst, and methods for making and using the same. 1. A process to prepare an olefin polymerization procatalyst comprising a Ti complex , said process comprising:{'sub': '2', 'claim-text': [{'sub': '5-12', 'i) a Mg compound chosen from butylethyl magnesium (BEM), dibutyl magnesium, and butyloctyl magnesium (BOM), a solvent chosen from Calkanes, or mixtures thereof,'}, 'ii) reactive organic chloride or HCl;, 'a) forming a delta form MgClspecies by combining'}and wherein the mole ratio of added Cl and Mg is from 2.1 to 2.3;{'sub': 2', 'x', '3−x', 'y', '3−y', 'x', '3−x', 'y', '3−y, 'sup': 1', '4', '5', '1', '4', '5, 'b) adding to said delta form MgClspecies prepared in step a), an aluminum alkyl halide of the formula RAlXfirst, a tetravalent titanium compound second, followed by an alkyl aluminum alkoxide of the formula RAlOR, wherein the Al/Ti molar ratio when measuring Al supplied from RAlXonly is from about 0.7 to about 1 and the Al/Ti molar ratio when measuring Al supplied from RAlORis from about 1 to about 2;'}and further whereinthe Mg/Ti molar ratio is from about 5 to about 10;x is 1 or 2;y is 1 or 2;{'sup': '1', 'sub': '1-8', 'each Ris independently chosen from Calkyl radicals;'}{'sup': 2', '3, 'sub': 3', '3', '4, 'the tetravalent titanium compound is chosen from TiRX, Ti(OR)X, TiX, and mixtures thereof;'}each X is independently chosen from the halogen radicals;{'sup': '2', 'sub': '1-8', 'each Ris independently chosen from Calkyl radicals and benzyl; and'}{'sup': 3', '4', '5, 'sub': '1- 8', 'each R, Rand Rare independently chosen from Calkyl radicals wherein no filtration or washing steps are performed during or after the formation of the catalyst.'}2. The process of claim 1 , wherein the reactive organic chloride is tertiary-butylchloride (tBuCl).3. The process of claim 1 , wherein step a) is performed at a temperature between about 20° C. and about 160° C.4. The process of claim 1 , ...

Ziegler-Natta Catalysts Prepared From Solid Alkoxymagnesium Halide Supports

Catalyst systems containing a titanium alkoxymagnesium halide supported catalyst component can be used for the polymerization of olefins. The catalyst can be prepared from a microcrystalline solid alkoxymagnesium halide support having a lattice spacing in the 5 nm to 15 nm range. 1. A process to produce a titanium alkoxymagnesium halide supported catalyst , the process comprising:{'sub': '2', 'sup': 1', '1, '(i) contacting a dialkylmagnesium compound having the formula MgRwith an alcohol compound having the formula ROH to form an alkylmagnesium alkoxide compound having the formula Mg(OR)R;'}{'sup': 1', '1, 'sub': 4', 'n', '2-n, '(ii) contacting the alkylmagnesium alkoxide compound having the formula Mg(OR)R with a halide compound having the formula SiXto form a mixture containing a microcrystalline solid alkoxymagnesium halide support having the formula Mg(OR)X; whereineach R independently is a linear or branched alkyl group;{'sup': '1', 'sub': 5', '18, 'Ris a linear or branched C-Calkyl group;'}each X independently is a halogen;n is a number from 0.5 to 1.5; and(iii) contacting the microcrystalline solid alkoxymagnesium halide support with a titanium compound to form the titanium alkoxymagnesium halide supported catalyst;wherein the titanium alkoxymagnesium halide supported catalyst is characterized by a lattice spacing in a range from about 5 nm to about 15 nm.2. The process of claim 1 , wherein:the dialkylmagnesium compound comprises diethyl magnesium, dipropyl magnesium, dibutyl magnesium, dihexyl magnesium, butyl ethyl magnesium, butyl octyl magnesium, or any combination thereof;the alcohol compound comprises a pentanol, a hexanol, a heptanol, an octanol, a nonanol, a decanol, an undecanol, a dodecanol, a tridecanol, a tetradecanol, a pentadecanol, a hexadecanol, a heptadecanol, an octadecanol, or any combination thereof; andeach X independently is bromine or chlorine.3. The process of claim 1 , wherein:{'sub': 1', '18, 'each R independently is a Cto Clinear or ...

用于在不相容的催化剂之间转换的方法

本发明涉及用于从在第一催化剂存在下进行的在反应器例如气相反应器中的第一连续聚合反应转换至在第二催化剂存在下进行的在所述反应器中的第二连续聚合反应的方法，其中所述第一和第二催化剂不相容，所述方法包括：(a)中断从催化剂进料系统中将第一催化剂引入反应器并且从所述催化剂进料系统清空所述第一催化剂；(b)将第一催化剂灭活剂引入反应器以使所述反应器中的所述第一催化剂基本上失活；(c)将第二催化剂灭活剂引入催化剂进料系统以使所述催化剂进料系统中的所述第一催化剂基本上失活；(d)将第二催化剂引入所述催化剂进料系统，和(e)从所述催化剂进料系统将第二催化剂引入所述反应器，其中所述第二催化剂灭活剂与所述第一催化剂灭活剂相同或不同。

Process for transitioning between incompatible catalysts

The invention relates to a process for transitioning from a first continuous polymerization reaction in a reactor, for example a gas-phase reactor conducted in the presence of a first catalyst to a second continuous polymerization reaction in the reactor conducted in the presence of a second catalyst, wherein the first and second catalysts are incompatible, the process comprising: (a) discontinuing the introduction of the first catalyst from a catalyst feeding system into a reactor and emptying the catalyst feeding system of the first catalyst; (b) introducing a first catalyst killer to the reactor to substantially deactivate the first catalyst in the reactor; (c) introducing a second catalyst killer to the catalyst feeding system to substantially deactivate the first catalyst in the catalyst feeding system; (d) introducing a second catalyst to the catalyst feeding system and (e) introducing the second catalyst to the reactor from the catalyst feeding system, wherein the second catalyst killer is the same as or different from the first catalyst killer.

Process for producing lldpe resins

Process for transitioning between incompatible catalysts

The invention relates to a process for transitioning from a first continuous polymerization reaction in a reactor, for example a gas-phase reactor conducted in the presence of a first catalyst to a second continuous polymerization reaction in the reactor conducted in the presence of a second catalyst, wherein the first and second catalysts are incompatible, the process comprising: (a) discontinuing the introduction of the first catalyst from a catalyst feeding system into a reactor and emptying the catalyst feeding system of the first catalyst; (b) introducing a first catalyst killer to the reactor to substantially deactivate the first catalyst in the reactor; (c) introducing a second catalyst killer to the catalyst feeding system to substantially deactivate the first catalyst in the catalyst feeding system; (d) introducing a second catalyst to the catalyst feeding system and (e) introducing the second catalyst to the reactor from the catalyst feeding system, wherein the second catalyst killer is the same as or different from the first catalyst killer.

Process for transitioning between incompatible catalysts

The invention relates to a process for transitioning from a first continuous polymerization reaction in a reactor, for example a gas-phase reactor conducted in the presence of a first catalyst to a second continuous polymerization reaction in the reactor conducted in the presence of a second catalyst, wherein the first and second catalysts are incompatible, the process comprising: (a) discontinuing the introduction of the first catalyst from a catalyst feeding system into a reactor and emptying the catalyst feeding system of the first catalyst; (b) introducing a first catalyst killer to the reactor to substantially deactivate the first catalyst in the reactor; (c) introducing a second catalyst killer to the catalyst feeding system to substantially deactivate the first catalyst in the catalyst feeding system; (d) introducing a second catalyst to the catalyst feeding system and (e) introducing the second catalyst to the reactor from the catalyst feeding system, wherein the second catalyst killer is the same as or different from the first catalyst killer.

用于在不相容的催化剂之间转换的方法

本发明涉及用于从在第一催化剂存在下进行的在反应器例如气相反应器中的第一连续聚合反应转换至在第二催化剂存在下进行的在所述反应器中的第二连续聚合反应的方法，其中所述第一和第二催化剂不相容，所述方法包括：(a)中断从催化剂进料系统中将第一催化剂引入反应器并且从所述催化剂进料系统清空所述第一催化剂；(b)将第一催化剂灭活剂引入反应器以使所述反应器中的所述第一催化剂基本上失活；(c)将第二催化剂灭活剂引入催化剂进料系统以使所述催化剂进料系统中的所述第一催化剂基本上失活；(d)将第二催化剂引入所述催化剂进料系统，和(e)从所述催化剂进料系统将第二催化剂引入所述反应器，其中所述第二催化剂灭活剂与所述第一催化剂灭活剂相同或不同。

Method for producing supported catalyst for producing ethylene polymer and ethylene/alpha-olefin copolymer

본 발명은 에틸렌 중합체 및 에틸렌과 α-올레핀과의 공중합체 제조 및 공중합체 제조를 위한 담지촉매의 제조방법에 관한 것으로서, 더욱 상세하게는 MgPh 2 .nMgCl 2 .mR 2 O(여기서, Ph=페닐, n=0.37∼0.7; m≥1 ; R 2 0=에테르)의 조성을 갖는 유기마그네슘 화합물과 유기염소 화합물을 -20℃∼80℃의 온도에서 마그네슘에 대한 유기염소 화합물의 몰비를 0.5 이상으로 하여 반응시키는 단계; 상기 반응에서 얻어진 마그네슘함유 담체를 티타늄 화합물, 바나듐 화합물 또는 티타늄 화합물과 바나듐 화합물의 혼합물 및 알콕시실란 화합물과 반응시키는 단계를 포함하여 이루어지는 것을 특징으로 한다. The present invention relates to a method for preparing an ethylene polymer and a copolymer of ethylene and an α-olefin and a supported catalyst for preparing a copolymer, more specifically MgPh 2 .nMgCl 2 .mR 2 O (where Ph = phenyl and an organic magnesium compound and an organic chlorine compound having a composition of n = 0.37 to 0.7; m≥1; R 2 0 = ether) at a temperature of -20 ° C to 80 ° C with a molar ratio of organochlorine compound to magnesium of 0.5 or more. Reacting; And reacting the magnesium-containing carrier obtained in the reaction with a titanium compound, a vanadium compound or a mixture of a titanium compound and a vanadium compound and an alkoxysilane compound. 본 발명의 방법에 의하면 분자량 분포가 좁은 폴리에틸렌 및 폴리에틸렌 공중합체를 제조할 수 있는 촉매를 제공하게 된다. The method of the present invention provides a catalyst capable of producing polyethylene and polyethylene copolymers having a narrow molecular weight distribution.

Catalysts for the polymerization of olefins

Catalysts useful in the polymerization of olefins, more particularly of ethylene and mixtures thereof with higher alpha-olefins and/or diolefins, are disclosed. The new catalysts are obtained by mixing a hydride or organometallic compound of a metal belonging to Groups I to III of the Mendelyeev Periodic System with the product obtained by contacting a titanium tetrahalide with a support comprising an anhydrous magnesium or zinc halide in an active form, under particular conditions.

Polymerization catalysts

Polymerization catalysts, particularly catalysts for the polymerization of olefins, are disclosed. The catalysts are prepared by mixing (A) an organometallic compound or hydride of a metal belonging to Groups I to III of the Mendelyeev Periodic Table; with (B) the product obtained by contacting (1) an addition product obtained by reacting a di-, tri-, or tetravalent titanium compound with an electron-donor compound, with (2) an anhydrous magnesium halide, in particular anhydrous MgCl 2 or MgBr 2 , which is either preactivated or mixed with the Ti compound under conditions which result in its activation; or by contacting (A) with (B') the product obtained by contacting a di-, tri-, or tetravalent Ti compound with an electron-donor compound and a support consisting of an anhydrous Mg halide, in particular MgCl 2 or anhydrous MgBr 2 , which is either preactivated or mixed with the Ti compound and electron-donor under conditions such that the Mg halide is activated.

Supported hybrid metallocene catalyst and good processability polyolefin using the same

The present invention relates to a supported hybrid metallocene catalyst comprising at least one first metallocene compound, at least one second metallocene compound, at least one co-catalyst compound and a carrier; a method for preparing the same; and a polyolefin resin polymerized in the presence of the catalyst. The second metallocene compound is a branch structured compound having ligands with an asymmetric structure. The polyolefin resin has a density of 0.910-0.960 g/cm^3, a unimodal molecular distribution with a polydispersity of 3-5, a melt index of 0.05-100 at 2.16 kg, and a melt flow rate of 20-40.

Method for preparing polyolfin and polyolefin prepared therefrom

본 발명은 큰 분자량 및 다봉 분자량 분포를 가짐에 따라, 대형 제품용 등으로 바람직하게 사용 가능한 폴리올레핀을 보다 효과적으로 제조할 수 있는 폴리올레핀의 제조 방법 및 이로부터 제조된 폴리올레핀에 관한 것이다. 상기 폴리올레핀의 제조 방법은 메탈로센 촉매와, 소정의 분자량 조절제의 존재 하에, 올레핀계 단량체를 중합하는 단계를 포함한다. The present invention relates to a process for producing a polyolefin which can produce a polyolefin which can be preferably used for a large-sized product or the like, having a large molecular weight and a high molecular weight distribution, and a polyolefin produced therefrom. The method for producing the polyolefin comprises polymerizing the olefin monomer in the presence of a metallocene catalyst and a predetermined molecular weight regulator.

Process to produce modified clay, modified clay produced and use thereof

Polyolefin

본 발명은 분자량 분포가 1.5 내지 3.0이고, BGN (Branch gradient number) 값이 0.01 내지 1.0인 폴리올레핀에 관한 것이다. 본 발명에 따르면, 좁은 분자량 분포를 가지고 고유한 공단량체 분포를 나타내어 충격 강도 및 기계적 물성이 우수한 폴리올레핀이 제공될 수 있다. The present invention relates to a polyolefin having a molecular weight distribution of 1.5 to 3.0 and a BGN (Branch Gradient Number) value of 0.01 to 1.0. According to the present invention, a polyolefin having a narrow molecular weight distribution and exhibiting a unique comonomer distribution and having excellent impact strength and mechanical properties can be provided.

用于带的丙烯组合物

本发明涉及聚丙烯组合物，其包含丙烯均聚物或丙烯‑乙烯共聚物，该丙烯‑乙烯共聚物的乙烯含量基于该丙烯‑乙烯共聚物为至多1.0wt％，其中丙烯均聚物或丙烯‑乙烯共聚物的量基于该聚丙烯组合物为至少98wt％，例如至少98.5wt％，优选地至少99wt％，更优选地至少99.5，例如至少99.75wt％，其中该聚丙烯组合物的根据ISO1133(2.16kg/230℃)测量的熔体流动速率范围在0.70至2.4dg/min，Mw/Mn范围在7.0至13.0，其中Mw表示重均分子量，Mn表示数均分子量，Mz/Mn范围在20至50，其中Mz表示z均分子量，以及其中Mw、Mn和Mz根据ASTM D6474‑12测量。

Process for transitioning between incompatible catalysts

boron-based electron donors for ziegler-natta catalyst systems

Um sistema catalítico para uso em polimerização olefínica inclui titânio, magnésio, um halogêneo, organoalumínio e um doador de elétrons à base de boro. A catalytic system for use in olefinic polymerization includes titanium, magnesium, a halogen, organoalumin and a boron-based electron donor.

Werkwijze voor het bereiden van een katalysatorcomplex, en werkwijze voor het polymeriseren van een alkeen met deze katalysator.

Patent JPS6354004B2

Method for crystallizing magnesium chloride and method for using in a catalyst composition

Disclosed is a method for making crystalline magnesium halide particles usable for preparing catalyst and usable in the polymerization of alpha olefins having the formula MgnEmXp * y ROH wherein y is a value greater than 0 and up to 12, and which comprises the steps of: contacting the components of a magnesium compound of the formula MgnEmXp, wherein Mg is the magnesium component, n is a value from 0.25 to 6, E is a metal, m is either 0 or 1, X is a halogen, and p is a value between 2n and (a*m+2n) (wherein a is the valence of the metal E) with an alcohol of the formula ROH, therein forming a solution; heating the solution to a temperature to a temperature at about the boiling point of the alcohol and maintaining the solution at a temperature sufficient to allow for the azeotroping of any water present; contacting the heated solution with a volume of an inert hydrocarbon liquid therein causing the formation of crystalline particles, and optionally melting the crystalline particles, and adding appropriate amounts of silica to the molten particles therein forming supported particles.

Passivated supports for use with olefin polymerization catalysts

A phosphinimine catalyst immobilized on a passivated inorganic oxide support, had high activity at low co-catalyst concentrations and gave, under gas phase polymerization conditions, ethylene copolymer with a high molecular weight. A method of making a passivated silica support involves treatment of silica with an organoaluminum compound, a diorganomagnesium compound and a source of chloride (to make MgCl2) under anhydrous conditions and in the absence of polar solvents.

Ziegler-Natta catalysts prepared from solid alkoxymagnesium halide supports

Catalyst systems containing a titanium alkoxymagnesium halide supported catalyst component can be used for the polymerization of olefins. The catalyst can be prepared from a microcrystalline solid alkoxymagnesium halide support having a lattice spacing in the 5 nm to 15 nm range.

Passivated supports for use with olefin polymerization catalysts

A phosphinimine catalyst immobilized on a passivated inorganic oxide support, had high activity at low co-catalyst concentrations and gave, under gas phase polymerization conditions, ethylene copolymer with a high molecular weight. A method of making a passivated silica support involves treatment of silica with an organoaluminum compound, a diorganomagnesium compound and a source of chloride (to make MgCl 2 ) under anhydrous conditions and in the absence of polar solvents.

Ziegler-Natta catalyst and preparation thereof

This invention relates to a solid MgCb-based Natta catalyst component comprising a C 2 to C 6 alkyl tetrahydrofurfuryl ether as internal electron donor for producing olefin polymers and preparation of said catalyst component. Further, the invention relates to a Ziegler-Natta catalyst comprising said solid catalyst component, Group 13 metal compound as co-catalyst and optionally external additives. The invention further relates to the use of said catalyst component in producing olefin polymers, especially ethylene copolymers.

Process for obtaining catalysts for the polymerization of olefines

Procedimento per la preparazione di prodotti in forma sferoidale solidi a temperatura ambiente

Componenti,di catalizzatori e catalizzatori per la polimerizzazione delle alfa-olefine

Catalyst components for the polymerization of olefins

The present disclosure relates to a solid catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of the formula (I): where each Q is a group —COOR 1 , in which R 1 is selected from C 1 -C 15 hydrocarbon groups, optionally containing a heteroatom selected from the group consisting of halogens, P, S, N and O; or a group —CON(R 2 ) 2 , in which R 2 groups, equal to or different from each other, are hydrogen or R 1 groups which can be fused together to form one or more cycles, and A is a bivalent bridging group with the proviso that the Q groups cannot be simultaneously a group —COOR 1 or —CON(R 2 ) 2 .

High density ethylene polymer with excellent processability using supported hybrid metallocene catalyst and methods for producing the same

The present invention relates to a high density ethylene polymer consisting of ethylene-exclusive monomers or a copolymer of ethylene and at least one comonomer selected from the group consisting of alpha olefin, ring-shaped olefin and linear, branching and ring-shaped diene. According to the present invention, the high density ethylene polymer has excellent wide molecular weight distribution and comonomer distribution properties; and has excellent melting flowability by having a long chain branch structure; and has excellent mechanical properties since comonomer distribution is concentrated in a polymer. Also, the high density ethylene polymer has excellent processability in processes such as extrusion, compression, injection, rotating molding, etc.

Spheroidal catalyst for olefin polymerization

A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*IDn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support.

Werkwijze om een katalysator te bereiden voor de poly- merisatie van alkenen-1.

Process for the stereoregular polymerization of alpha olefins

There is disclosed a process for the stereoregular polymerization of alpha olefins or mixtures thereof with ethylene conducted in the presence of highly active and stereospecific new catalysts. The catalysts are obtained from the reaction of a component (A) which is a particular Al-alkyl compound that is at least in part in the form of an addition and/or a substitution reaction product with an electron-donor compound free from ester groups of oxygenated organic and inorganic acids, with a component (B) which is a supported component characterized by having surface area exceeding certain values or by showing a particular X-rays spectrum, and prepared by contacting a halogenated Ti compound, preferably in the form of a complex with an electron-donor compound, with a support comprising a Mg or Mn dihalide in an active state. In the catalysts the ratio between the Ti compound expressed in Ti g-atoms and the g-moles of the electron-donor compounds is lower than 0.3.

Componenti di catalizzatori per la polimerizzazione delle alfa-olefine

Componenti di catalizzatori per la polimerizzazione di olefine

Improved hydrogen response ziegler-natta catalyst for narrowing mwd of polyolefin, method of making, method of using, and polyolefins made therewith

향상된 수소반응을 가진 지글러-나타 촉매(Ziegler-Natta catalyst)는 이러한 촉매를 사용하여 중합되어 생성된 좁은 MWD를 가진 폴리올레핀을 제공하는데, 이러한 촉매는 일반적으로 a) 반응 생성물 A을 형성하도록, R''가 1~20개의 탄소 원자를 갖는 하이드로카빌 또는 치환된 하이드로카빌인 일반식 Mg(OR'') 2 의 용해성 마그네슘 디알콕사이드 화합물을, 하나의 할로겐을 하나의 알콕사이드로 교환할 수 있는 할로겐화제와 접촉하는 단계; b) 반응 생성물 B를 형성하도록, 반응 생성물 A를 제1 할로겐화/티탄산염화제와 접촉시키는 단계; 및 c) 촉매 성분을 형성하도록, 반응 생성물 B를 제2 할로겐화/티탄산염화제와 접촉시키는 단계를 포함하며, 단계 b) 및 c)의 적어도 하나에서 제1 할로겐화/티탄산염화제가 Ti(OPr) 4 및 TiCl 4 의 블렌드(blend)인 것을 특징으로 하는 공정에 의해 제조된다. 촉매성분, 촉매, 촉매 시스템, 폴리올레핀 폴리머 및 각각의 제조방법이 설명된다. Ziegler-Natta catalysts with improved hydrogen reactions provide polyolefins with narrow MWDs produced by polymerization using such catalysts, which generally a) form R 'to form reaction product A. A soluble magnesium dialkoxide compound of the general formula Mg (OR '') 2 , wherein is a hydrocarbyl or substituted hydrocarbyl having 1 to 20 carbon atoms, with a halogenating agent capable of exchanging one halogen with an alkoxide Contacting; b) contacting reaction product A with a first halogenated / titanate agent to form reaction product B; And c) contacting reaction product B with a second halogenated / titanate agent to form a catalyst component, wherein in at least one of steps b) and c) the first halogenated / titanate agent is Ti (OPr) 4 And a blend of TiCl 4 . Catalyst components, catalysts, catalyst systems, polyolefin polymers and methods of making each are described.

Ion exchanged aluminium-magnesium or fluorinated magnesium silicate aerogels and catalyst supports therefrom

Aluminum-magnesium silicate- or fluorinated magnesium silicate- aerogels whi ch may be calcined, chemically modified, ion-exchanged, agglomerated, used as a component of a catalyst composition f or an addition polymerization; supported versions thereof; and processes for polymerization are disclosed.

Passivated supports for use with olefin polymerization catalysts

A phosphinimine catalyst immobilized on a passivated inorganic oxide support, had high activity at low co-catalyst concentrations and gave, under gas phase polymerization conditions, ethylene copolymer with a high molecular weight. A method of making a passivated silica support involves treatment of silica with an organoaluminum compound, a diorganomagnesium compound and a source of chloride (to make MgCl 2 ) under anhydrous conditions and in the absence of polar solvents.

Supported hybrid catalyst

본 발명에서는 적절한 분자량 분포를 가지면서도 용융 강도가 개선되어 버블 안정성이 향상되고 우수한 블로운 필름 가공성을 나타낼 수 있는 올레핀 중합체를 용이하게 제조할 수 있는 혼성 담지 촉매 및 이를 이용한 올레핀 중합체의 제조 방법이 제공된다. In the present invention, there is provided a hybrid supported catalyst capable of easily preparing an olefin polymer having an appropriate molecular weight distribution and improved melt strength to improve bubble stability and exhibit excellent blown film processability, and a method for preparing an olefin polymer using the same. do.

Passivated supports for use with olefin polymerization catalysts

A phosphinimine catalyst immobilized on a passivated inorganic oxide support, had high activity at low co-catalyst concentrations and gave, under gas phase polymerization conditions, ethylene copolymer with a high molecular weight. A method of making a passivated silica support involves treatment of silica with an organoaluminum compound, a diorganomagnesium compound and a source of chloride (to make MgCl 2 ) under anhydrous conditions and in the absence of polar solvents.

Spheroidal catalyst for olefin polymerization

A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a 5 solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support.

Process to produce modified clay, modified clay produced and use thereof

An intercalated, modified and calcined smectite clay comprising (a) pillars comprising aluminum and: (i) at least one rare earth or lanthanide group metal; or (ii) at least one rare earth or lanthanide group metal and gallium; and (b) at least one ion-exchanged metal selected from the group consisting of aluminum, barium, beryllium, calcium, cerium, cesium, copper, chromium, gadolinium, gallium, germanium, hafnium, holmium, iron (II and III), lanthanum, lithium, magnesium, manganese, neodymium, potassium, praseodymium, rubidium, samarium, silver, selenium, sodium, strontium, tellurium, terbium, thallium, thorium, tin, titanium, uranium, ytterbium, yttrium, zinc and zirconium; wherein the clay is characterized by a basal d 001 spacing equal to or greater than about 18.5 angstroms; and processes for making. The modified clays are suitably used as catalyst support-activators and when used in combination with metallocene catalyst precursor components, can provide active catalysts for polymerizing at least one olefin, preferably in the substantial absence of aluminoxanes or boron-containing compounds.

Spheroidal catalyst for olefin polymerization

A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support.

Spheroidal catalyst for olefin polymerization

A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support.

Process for polymerization using dense and spherical ziegler-natta type catalyst

Some embodiments herein disclose a process for producing an ethylene polymer or copolymer which contains less than 5 ppm titanium and has a bulk density, in granular form, of at least 22.5 lbs/ft 3 , using a spheroidal Ziegler-Natta type olefin polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0 and comprising a titanium compound, an aluminum compound, and a spheroidal magnesium chloride support.

Process to produce modified clay, modified clay produced and use thereof

An intercalated, modified and calcined smectite clay comprising (a) pillars comprising aluminum and: (i) at least one rare earth or lanthanide group metal; or (ii) at least one rare earth or lanthanide group metal and gallium; and (b) at least one ion-exchanged metal selected from the group consisting of aluminum, barium, beryllium, calcium, cerium, cesium, copper, chromium, gadolinium, gallium, germanium, hafnium, holmium, iron (II and III), lanthanum, lithium, magnesium, manganese, neodymium, potassium, praseodymium, rubidium, samarium, silver, selenium, sodium, strontium, tellurium, terbium, thallium, thorium, tin, titanium, uranium, ytterbium, yttrium, zinc and zirconium; wherein the clay is characterized by a basal d001 spacing equal to or greater than about 18.5 angstroms; and processes for making. The modified clays are suitably used as catalyst support-activators and when used in combination with metallocene catalyst precursor components, can provide active catalysts for polymerizing at least one olefin, preferably in the substantial absence of aluminoxanes or boron-containing compounds.

Composition of matter and method of preparing same, catalyst, method of producing the catalyst and polymerization process employing the catalyst

A transition metal compound and a metal halide compound selected from metal dihalide compounds and metal hydroxyhalide compounds are chemically combined to form a composition of matter. The composition of matter is suitable for use with an organometallic compound to produce an active olefin polymerization catalyst. Exceptionally high polymer yields are realized per gram of catalyst when the catalyst is treated with a halide ion exchanging source and used with an organometallic cocatalyst.

Catalyst, method of producing the catalyst, and polymerization process employing the catalyst

A transition metal compound and a metal halide compound are chemically combined to form a composition of matter. The composition of matter is mixed with a precipitating agent to form an active olefin polymerization catalyst. The catalyst can be further treated with a halide ion exchanging source to form an active olefin polymerization catalyst. Prepolymer is deposited on the catalyst(s) in an amount effective to reduce polymer fines when the catalyst(s) are used in polymerization processes.

Catalyst, method of producing the catalyst, and polymerization process employing the catalyst

A transition metal compound and a metal halide compound are chemically combined to form a composition of matter. The composition of matter is mixed with a precipitating agent to form an active olefin polymerization catalyst. The catalyst can be further treated with a halide ion exchanging source to form an active olefin polymerization catalyst. Prepolymer is deposited on the catalyst(s) in an amount effective to reduce polymer fines when the catalyst(s) are used in polymerization processes.

Process for producing lldpe resins

The present invention is directed to a process for producing copolymers of ethylene and at least one alpha-olefin having from 4 to 10 carbon atoms in the presence of a polymerisation catalyst. The resulting copolymer has a density of from 906 to 937 kg/m 3 and a melt flow rate MFR 21 measured at 190 °C under 21.6 kg load of from 3 to 100 g/10 min. The process comprising the steps of: (A) homopolymerising ethylene or copolymerising ethylene and a first alpha-olefin having from 4 to 10 carbon atoms in a first polymerisation stage in the presence of the polymerisation catalyst, hydrogen and optionally the first alpha-olefin wherein the molar ratio of hydrogen to ethylene in the fluid reaction mixture of the first polymerisation stage is from 200 to 50000 mol/kmol and the molar ratio of the first alpha-olefin to ethylene in the fluid reaction mixture of the first polymerisation stage is from 0 to 1500 mol/kmol, to produce a first homo- or copolymer of ethylene; (B) copolymerising ethylene and a second alpha-olefin having from 4 to 10 carbon atoms in a second polymerisation stage in the presence of the first homo- or copolymer of ethylene to produce a polymer mixture comprising the first homo- or copolymer of ethylene and a second copolymer of ethylene, the polymer mixture having a density of from 906 to 937 kg/m 3 and a melt flow rate MFR 21 of from 3 to 150 g/10 min; (C) recovering the polymer mixture. The polymerisation catalyst comprises an internal organic compound having the formula (I): wherein in the formula (I) R 1 to R 5 are the same or different and can be hydrogen, a linear or branched C1 to C8-alkyl group, or a C3-C8-alkylene group, or two or more of R 1 to R 5 can form a ring, and the two oxygen-containing rings are individually saturated or partially unsaturated or unsaturated.

Process for producing LLDPE resins

A process for producing copolymers of ethylene and at least one alpha-olefin having from 4 to 10 carbon atoms in the presence of a solid Ziegler-Natta catalyst comprising of magnesium, titanium, halogen and an internal organic compound, the copolymer having a density of from 906 to 937 kg/m3 and a melt flow rate MFR21 measured at 190° C. under 21.6 kg load of from 3 to 150 g/10 min. The process includes the steps of (A) homopolymerising ethylene or copolymerising ethylene and a first alpha-olefin having from 4 to 10 carbon atoms in a first polymerisation stage in the presence of the polymerisation catalyst, hydrogen and optionally the first alpha-olefin; (B) copolymerising ethylene and a second alpha-olefin having from 4 to 10 carbon atoms in a second polymerisation stage in the presence of the first homo- or copolymer of ethylene and the Ziegler-Natta catalyst; and (C) recovering the polymer mixture.

Process for producing lldpe resins

The present invention is directed to a process for producing copolymers of ethylene and at least one alpha-olefin having from 4 to 10 carbon atoms in the presence of a solid Ziegler-Natta catalyst comprising of magnesium, titanium, halogen and an internal organic compound, the copolymer having a density of from 906 to 937 kg/m 3 and a melt flow rate MFR 21 measured at 190 °C under 21.6 kg load of from 3 to 150 g/10 min comprising the steps of (A) homopolymerising ethylene or copolymerising ethylene and a first alpha-olefin having from 4 to 10 carbon atoms in a first polymerisation stage in the presence of the polymerisation catalyst, hydrogen and optionally the first alpha-olefin wherein the molar ratio of hydrogen to ethylene in the fluid reaction mixture of the first polymerisation stage is from 200 to 50000 mol/kmol and the molar ratio of the first alpha-olefin to ethylene in the fluid reaction mixture of the first polymerisation stage is from 0 to 1500 mol/kmol, to produce a first homo- or copolymer of ethylene; (B) copolymerising ethylene and a second alpha-olefin having from 4 to 10 carbon atoms in a second polymerisation stage in the presence of the first homo- or copolymer of ethylene and the solid Ziegler-Natta catalyst to produce a polymer mixture comprising the first homo- or copolymer of ethylene and a second copolymer of ethylene, the polymer mixture having a density of from 906 to 937 kg/m 3 and a melt flow rate MFR 21 of from 3 to 150 g/10 min; (C) recovering the polymer mixture, characterised in that the polymerisation catalyst comprises an internal organic compound having the formula (I): wherein in the formula (I) R 1 to R 5 are the same or different and can be hydrogen, a linear or branched C1 to C8-alkyl group, or a C3-C8-alkylene group, or two or more of R 1 to R 5 can form a ring, and the two oxygen-containing rings are individually saturated or partially unsaturated or unsaturated.

Process for the preparation of ethylene/propylene copolymers

A process for the copolymerization of ethylene with propylene with a catalyst obtained by the reaction of: (a) a metalorganic aluminium compound selected from Al-trialkyls and Al-alkyl monohalides, and (b) a titanium halide supported on an anhydrous magnesium dichloride or magnesium dibromide in activated form, and the X-ray spectrum of which is characterized in that the line of maximum intensity appearing in the spectrum of the Mg-dihalide of normal type is not present and that in its place there is a halo with its maximum intensity displaced with respect to the line. More particularly, there may be obtained elastomeric copolymers containing 40 - 60% by weight of ethylene, free of crystallinity of the polypropylenic type and with a crystallinity of the polyethylenic type below 10%.

Method for producing olefin (co)polymer containing constituent unit derived from 1-butene

Polymerization of olefins

The present invention comprises a catalyst system, catalyst complex, and a process for the polymerization and copolymerization of alpha-olefins in which the process is carried out in the presence of a catalyst system comprising an organic compound of a metal of Group Ib, IIa, IIIb, or IVb of the Periodic Table and a solid catalyst complex prepared by reacting a divalent metal halide, an organic oxygen compound of a metal of Group IVa, Va, or VIa of the Periodic Table, and an aluminum halide.

Production method of olefin (co)polymer containing constituent unit derived from 1-butene

The purpose of the present invention is to provide a method for efficiently producing an olefin (co)polymer containing a constituent unit derived from 1-butene, the (co)polymer having a molecular weight that is sufficiently high even for high temperature conditions that are beneficial for industrial production methods. This purpose can be achieved by means of a method for producing an olefin (co)polymer containing a constituent unit derived from 1-butene, wherein at least 1-butene and, if necessary, an α-olefin having 2 or more carbon atoms (excluding 1-butene) and other monomers are (co)polymerized in the presence of an olefin polymerization catalyst that contains (A) a crosslinked metallocene compound represented by general formula [I] and (B) at least one type of compound selected from among (b-1) an organic aluminum oxy compound, (b-2) a compound that forms an ion pair upon a reaction with the crosslinked metallocene compound (A), and (b-3) an organic aluminum compound, at a polymerization temperature of 55-200° C. and a polymerization pressure of 0.1-5.0 MPaG.