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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 10057. Отображено 100.
03-05-2012 дата публикации

Polyethylene Composition and Finished Products Made Thereof

Номер: US20120108766A1
Автор: Bernd Lothar Marczinke, Diana Doetsch, Dieter Lilge, Heinz Vogt, Iakovos Vittorias, Joachim Berthold, Johannes-Gerhard MÜLLER
Принадлежит: BASELL POLYOLEFINE GMBH

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

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Номер записи: 1
17-05-2012 дата публикации

Catalytic Systems Made of a Complex of Rare Earths For Stereospecific Polymerisation Of Conjugated Dienes

Номер: US20120123070A1
Автор: Christophe Boisson, Julien Thuilliez, Olivier Rolland
Принадлежит: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS, Michelin Recherche et Technique SA Switzerland, Universite Claude Bernard Lyon 1 UCBL

La present invention relates to a multi-component catalytic system that can be used for the cis-1,4 stereospecific polymerization of conjugated dienes. The system is based on: (i) a rare-earth complex of Formula (II) Ln(A) 3 (B) n , Ln being a rare-earth metal, A a ligand, B a Lewis base or a solvent molecule and n a number from 0 to 3; (ii) an alkylating agent; (iii) a compound based on an aromatic ring and having at least two heteroatoms chosen from the elements O, N, S, P, and corresponding to the Formula (III): in which the R groups each denote hydrogen, an alkyl radical optionally comprising one or more heteroatoms (N, O, P, S, Si) or one or more halogen atoms, a halogen atom, a group based on one or more heteroatoms (N, O, P, S, Si); x and y are integers from 0 to 6; D is a group having a chemical function, one of the atoms of which has a non-bonding pair; L being an atom from column 1 of the Periodic Table.

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Номер записи: 2
26-07-2012 дата публикации

Reactive systems

Номер: US20120190787A1
Автор: Janin Tecklenburg, Klaus-Wilhelm Lienert, Majdi Al-Masri, Michael Berkei, Sabine Voedisch, Thomas Sawitowski
Принадлежит: Elantas GmbH

Reactive system comprising at least one component (I) composed of particles in very finely divided form present in a liquid phase of at least one further component (II) with which component (I) is capable of reacting following activation through energy supply, wherein component (I) is not soluble in component (II), process for preparation and use.

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Номер записи: 3
20-12-2012 дата публикации

Toughened cyanoacrylate compositions

Номер: US20120322947A1
Автор: Daniel D. Morrogh, Hanns R. Misiak, William Hally
Принадлежит: Henkel Loctite Ireland Ltd

The present invention relates to toughened cyanoacrylate compositions.

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Номер записи: 4
27-12-2012 дата публикации

Benzopinacol metalloester polymerization initiator

Номер: US20120329967A1
Автор: David L. Vines, Thomas James MURRAY
Принадлежит: Elantas PDG Inc

A polymerization initiator based on boroesters of benzopinacol for curing unsaturated polymers is disclosed. Methods of preparing the benzopinacol boroester initiator and using the initiator in polymerization reactions are additionally disclosed.

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Номер записи: 5
28-03-2013 дата публикации

METHOD FOR PRODUCING DIALLYLAMINE ACETATE POLYMER

Номер: US20130079480A1
Автор: Fukushima Yusuke, Nakata Yasuhito, Takayama Hiroyuki
Принадлежит: NITTO BOSEKI CO., LTD.

Provided is a method for producing a diallylamine acetate polymer comprising polymerizing diallylamine acetate in water or a polar solvent in the presence of a radical initiator, the radical initiator being an organic acid addition salt of a specific cyclic amidinoazo compound, and a diallylamine acetate polymer solution free of halogen. 2. The method according to claim 1 , wherein the organic acid addition salt is an acetic acid addition salt.3. The method according to claim 1 , wherein the diallylamine acetate monomer concentration is 15 to 60 mass %.4. A diallylamine acetate polymer solution that does not comprise a halogen or an inorganic substance.5. The method according to claim 2 , wherein the diallylamine acetate monomer concentration is 15 to 60 mass %. The present invention relates to a method for producing a diallylamine acetate polymer, and to a diallylamine acetate polymer solution. More specifically, the invention relates to a method for efficiently producing a diallylamine acetate polymer that is readily usable in the field of fine chemicals or the like due to its non-halogen (i.e.halogen-free) nature, and a diallylamine acetate polymer solution free of halogens and inorganic substances which was previously difficult to produce.Due to the fact that diallylamine hydrochloride polymers are nowadays easily producible by polymerization of diallylamine hydrochloride monomers in an aqueous solution in the presence of a radical polymerization catalyst and that they are water-soluble cationic polymers, diallylamine hydrochloride polymers have been industrially manufactured and their use has been proposed in diverse fields such as in metal protection agents, inkjet recording applications and electronic materials.However, since diallylamine hydrochloride polymers contain a halogen, they could be difficult to use in some applications such as ceramic binders and any applications that involve contact with a metal where the halogen may cause corrosion. Therefore, ...

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Номер записи: 6
11-04-2013 дата публикации

CATALYST SUPPORTS, CATALYSTS AND THEIR MANUFACTURE AND USE

Номер: US20130090437A1
Автор: Hu Yatao Rachel, Lee Myoung Kie, Shah Parag Rasiklal
Принадлежит: PQ CORPORATION

A process for preparation of silica xerogel catalyst support particles having high surface areas involves ageing a silica hydrogel at a pH from 3 to 5 and at a temperature of 45° C. or more. The ageing at low pH leads to a silica gel which may be converted to a xerogel having a pore volume of 1.5 cm/g or more and a surface area of 600 m/g or more by removal of liquid from the pore structure by solvent exchange with a liquid solvent having a surface tension of 35 mN/m or less. The resulting particles are useful for carrying catalyst metal compounds, such as a chromium compounds, in the pore structure to act as catalyst precursors. These catalyst precursors may be activated into porous catalyst particles suitable for use for olefin polymerisation to provide high activity and for forming high molecular weight polymers (low MI polymers) with good crack resistance. 120-. (canceled)21. A process for preparation of catalyst support particles having a pore structure with a pore volume of 1.5 cm/g or more and a surface area of 600 m/g or more , the process comprising:a) providing a silica hydrogel having a solids content from 15% to 33% by weight by acidification of an alkali metal silicate,b) forming the silica hydrogel into hydrogel particles,c) washing the hydrogel particles, at a pH of 3.5 or less to substantially remove salt, optionally for a period of 1 hour or longer,{'sub': L', 'H', 'L', 'H, 'd) contacting the hydrogel particles with an aqueous ageing solution, arranged to provide an aqueous dispersion having a pH from 3 to 5, and at an ageing temperature from 40° C. up to the boiling point of the solution, for an ageing period of 4 hours or longer, to provide aged hydrogel particles, wherein the ageing temperature is from a lowest ageing temperature Tto a highest ageing temperature T, wherein T=(90−10×pH)° C. and T=(184−22.6×pH)° C.,'}e) carrying out solvent exchange on the aged hydrogel particles with a liquid solvent having a surface tension of 35 mN/m or less ...

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Номер записи: 7
16-05-2013 дата публикации

Method for producing a water-absorbent resin

Номер: US20130123455A1
Автор: Atsushi Heguri, Hideki Yokoyama, Nobuhiro Maeda, Sachi Kikuno
Принадлежит: Sumitomo Seika Chemicals Co Ltd

A method for producing a water-absorbent resin having a further reduced odor as compared with a water-absorbent resin obtained by a conventional method as well as a water-absorbent resin produced by the same method, by maintaining the addition rate V from the pouring nozzle for the aqueous solution of the water-soluble ethylenically unsaturated monomer in a polymerization reaction tank not more than 0.30 [min −1 ], in the first stage polymerization step which is within the step of the conventional method upon performing multi-stages such as two or more stages of reversed-phase suspension polymerizations in a method for producing a water-absorbent resin, and thereby by being able to reduce the amount of the petroleum hydrocarbon dispersion medium remaining in the above water-absorbent resin.

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Номер записи: 8
23-05-2013 дата публикации

CATALYST SLURRY PREPARATION SYSTEM AND USE THEREOF

Номер: US20130130890A1
Автор: Brusselle Alain, Fouarge Louis
Принадлежит: TOTAL RESEARCH & TECHNOLOGY FELUY

The present invention relates to the use of a catalyst preparation system for the preparation of a diluted catalyst slurry. In particular, the invention relates to a catalyst preparation system comprising a mixing vessel for mixing a particulate catalyst and a liquid hydrocarbon diluent. According to the invention, diluted catalyst slurry is prepared in a mixing vessel comprising a rotatable axial impeller system comprising at least two double-bladed hubs. The invention also relates to a process for preparing diluted catalyst slurry for use in the preparation of a particulate polyethylene product in a loop reactor with the catalyst preparation system as described herein. 13311811925251173125225117. Use of a catalyst slurry preparation system for the preparation of a diluted catalyst slurry comprising a solid particulate catalyst and a liquid hydrocarbon diluent , wherein said catalyst slurry preparation system comprises a cylindrical mixing vessel () wherein said mixing vessel () comprises a top part () , a bottom part () and a rotatable impeller system () which is actuated by a motor , said impeller system () comprising a magnetic actuated agitator shaft () which is positioned along a longitudinal axis of said mixing vessel () and extends through said top part of said mixing vessel and comprises at least two double-bladed hubs ( , ) , which are fixed to said agitator shaft ().21242243. Use according to claim 1 , wherein said mixing vessel further comprises one or more baffles ( claim 1 , ) claim 1 , wherein said one or more baffle are fixed longitudinally along the inner wall of said mixing vessel () claim 1 , whereby said one or more baffles extend radially inward.3126226125225. Use according to claim 1 , wherein the blades ( claim 1 , ) of each double-bladed hub ( claim 1 , ) are symmetrically positioned about said hub and have a pitch angle (α) comprised between 65° and 75.4126226127227128228129229130230. Use according to claim 1 , wherein each blade ( claim 1 , ...

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Номер записи: 9
06-06-2013 дата публикации

MODIFIED CATALYST SUPPORTS

Номер: US20130144016A1
Автор: Slawinski Martine, Vantomme Aurélien, Willocq Christopher
Принадлежит: TOTAL RESEARCH & TECHNOLOGY FELUY

A process for preparing a supported catalyst system comprising the following steps: 1. A process for preparing a supported catalyst system comprising the following steps:{'sup': 2', '2', '2, 'sub': n', 'm', 'n', 'm, 'a. titanating a silica-containing catalyst support having a specific surface area of from 150 m/g to 800 m/g, preferably 280 to 600 m/g, with at least one vapourised titanium compound of the general formula selected from RTi(OR′), and (RO)Ti(OR′), wherein R and R′ are the same or different and are selected from hydrocarbyl groups containing from 1 to 12 carbon and halogens, and wherein n is 0 to 4, m is 0 to 4 and m+n equals 4, to form a titanated silica-containing catalyst support having at least 0.1 wt % of Ti based on the weight of the titanated silica-containing catalyst support,'}b. treating the support with a catalyst activating agent, preferably an alumoxane,c. treating the titanated support with at least one metallocene during or after step (b).2. The process according to wherein the catalyst support has 0.1 to 60 wt % of Ti based on the weight of the titanated silica-containing catalyst support claim 1 , preferably of from 0.5 to 25 wt % claim 1 , more preferably of from 1 to 15 wt % and most preferably of from 1 to 12 wt %.3. The process according to wherein the titanium compound is selected from the group consisting of tetraalkoxides of titanium having the general formula Ti(OR′)wherein each R is the same or different and can be an alkyl or cycloalkyl group each having from 3 to 5 carbon atoms claim 1 , and mixtures thereof.4. The process according to wherein the titanium compounds are selected from Ti(OCH)and Ti(OCH) claim 1 , preferably a mixture of both claim 1 , more preferably a mixture having a weight ratio of 20:80 of Ti(OCH)to Ti(OCH).5. The process according to wherein the metallocene is a selected from formula (I) or (II):{'br': None, 'sub': 2', '2, '(Ar)MQ\u2003\u2003(I)'}{'br': None, 'sub': 2', '2, 'R″(Ar)MQ\u2003\u2003(II)'} ...

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Номер записи: 10
13-06-2013 дата публикации

PRODUCTION METHOD FOR A SPHERICAL CARRIER FOR AN OLEFIN POLYMERIZATION CATALYST, AND A SOLID CATALYST USING THE SAME AND PROPYLENE POLYMERS

Номер: US20130150538A1
Автор: KIM Eun Il, Kim Jong Sik, Lee Young Joo, PARK Joon Ryeo
Принадлежит:

The provided are a method for preparing a spherical support for a catalyst for olefin polymerization and a solid catalyst prepared using the support, and a propylene polymer obtained by using the solid catalyst. Specifically, a method for preparing a spherical support which can be used for preparation of a propylene polymerization catalyst, particularly a dialkoxy magnesium support, comprising reacting metal magnesium and an alcohol in the presence of a halogenated nitrogen compound as a reaction initiator and adjusting the initial reaction temperature to the range of 20-25° C. and the aging temperature to the range of 55-65° C.; a solid catalyst for olefin polymerization prepared by using the above-obtained support; and a propylene polymer having a high bulk density prepared by using the above-obtained catalyst are provided. 1. A method for preparing a spherical support for a catalyst for olefin polymerization comprising the reaction of metal magnesium and an alcohol , wherein the method comprises reacting the metal magnesium with an alcohol at the initial reaction temperature of 20-25° C. , and then aging the resultant from the reaction at the temperature of 55-65° C.2. The method according to claim 1 , wherein the reaction of metal magnesium and an alcohol is carried out in the presence of a halogenated nitrogen compound as a reaction initiator.3. The method according to claim 2 , wherein the halogenated nitrogen compound is N-bromosuccinimide.4. A catalyst for olefin polymerization prepared by reacting the support prepared by the method according to with titanium halide and a diester compound as an internal electron donor claim 1 , in the presence of an organic solvent.5. A propylene polymer prepared from propylene polymerization carried out by using the catalyst according to claim 4 , alkyl aluminum as a cocatalyst and an alkoxysilane compound as an external electron donor.6. The propylene polymer according to which has a bulk density of 0.46 g/cc or more. The ...

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Номер записи: 11
20-06-2013 дата публикации

METHOD FOR PREPARING CARBENE IN SOLUTION, NOVEL STABLE FORM OF CARBENE OBTAINED IN PARTICULAR BY MEANS OF SAID METHOD, AND USES THEREOF IN CATALYSIS

Номер: US20130158274A1
Автор: Baceiredo Antoine J., Gojon Sophie, Kato Tsuyoshi, Maliverney Christian, Saint-Jalmes Laurent
Принадлежит: BLUESTAR SILICONES FRANCE SAS

The invention relates to a method for preparing carbene by means of deprotonation of a precursor salt using a strong base. A purpose of the invention is to enhance the synthesis of carbenes, i.e. to simplify same, to make said synthesis more economical and to obtain a liquid or solid, stable and pure form consitituting a catalytic system that is easy to store and use and that has a higher efficiency, higher yield and higher selectivity than carbene catalysts of the prior art. In order to do so, the method comprises deprotonation in a solvent including an alcohol. The invention also relates to an alcohol-containing solution and carbene, and to a solid that can be obtained from the solution, e.g. by means of sublimation. 3. The process as claimed in claim 1 , characterized in that the wherein said alcohol corresponds to formula (I°) R° OH claim 1 , in which R° corresponds to an alkyl claim 1 , cycloalkyl claim 1 , aryl claim 1 , alkenyl claim 1 , alkynyl claim 1 , arylalkyl claim 1 , silyl or siloxane group claim 1 , R° optionally being selected from the group consisting of: methyl claim 1 , ethyl claim 1 , propyl and butyl.4. The process as claimed in claim 1 , wherein said strong base is selected from the group consisting of alkali metal and alkaline earth metal hydroxides claim 1 , alkoxides claim 1 , hydrides and amides claim 1 , optionally from the subgroup consisting of: CHONa claim 1 , potassium tert-butoxide claim 1 , KOH claim 1 , NaOH claim 1 , CHCHOMgOCHCHand mixtures thereof.5. The process as claimed in claim 1 , wherein said deprotonation produces a salt which precipitates and which is separated from said solution A.6. The process as claimed in claim 1 , in which said solvent is sublimed so as to collect said carbene C in solid form.9. The solution A as claimed in claim 7 , capable of being used as a catalyst and/or in preparing a metal catalyst which is either in zero state and/or in ionized state and which comprises at least one carbene as ligand and/or ...

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Номер записи: 12
27-06-2013 дата публикации

CATALYST CARRIER BASED ON SILICA GEL

Номер: US20130165608A1
Автор: Braedikow Andreas, Eckardt Tobias, Puvogel Thorsten, Siegel Angela
Принадлежит: BASF SE

The present invention relates to spherical beads comprising at least one metal and/or semimetal oxide, having a mean diameter in the range from 10 to 120 μm, a BET surface area in the range from 400 to 800 m/g and a pore volume in the range from 0.3 to 3.0 cm/g, wherein the diameter of a given bead at any one point of said bead deviates by less than 10% from the average diameter of said bead and the surface of said bead is substantially smooth, and also to a process for producing these spherical beads, to a particulate catalyst comprising the spherical beads and to the use of the spherical beads as catalysts or catalyst carriers. 110-. (canceled)11. Spherical beads comprising at least one metal and/or semimetal oxide , having a mean diameter in the range from 10 to 120 μm , a BET surface area in the range from 400 to 800 m/g and a pore volume in the range from 0.3 to 3.0 cm/g , wherein the diameter of a given bead at any one point of said bead deviates by less than 10% from the average diameter of said bead and the surface of said bead is substantially smooth.12. The beads of wherein the at least one metal and/or semimetal oxide is selected from the group consisting of SiO claim 11 , AlO claim 11 , TiO claim 11 , MgO and mixtures thereof.13. The beads of claim 11 , consisting of SiOto an extent of at least 96% by weight.14. The beads of wherein the at least one metal and/or semimetal oxide is substantially amorphous.15. The beads of wherein the BET surface area is in the range from 500 to 600 m/g.16. The beads of wherein the pore volume is in the range from 1.5 to 2.5 cm/g.17. A process for producing spherical beads comprising at least one metal and/or semimetal oxide claim 11 , having a mean diameter in the range from 10 to 120 μm claim 11 , a BET surface area in the range from 400 to 800 m/g and a pore volume in the range from 0.3 to 3.0 cm/g claim 11 , wherein the diameter of a given bead at any one point of said bead deviates by less than 10% from the average ...

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Номер записи: 13
04-07-2013 дата публикации

Catalyst compositions for the polymerization of olefins

Номер: US20130172497A1
Автор: Mark L. Hlavinka, QING Yang, Youlu Yu
Принадлежит: Chevron Phillips Chemical Co LP

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

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Номер записи: 14
15-08-2013 дата публикации

Modified catalyst supports

Номер: US20130211018A1
Автор: Aurélien Vantomme, Christopher Willocq, Martine Slawinski
Принадлежит: Total Research and Technology Feluy SA

The invention covers a supported catalyst system prepared according to a process comprising the following step: i). impregnating a silica-containing catalyst support having a specific surface area of from 150 m 2 /g to 800 m 2 /g, preferably 280 m 2 /g to 600 m 2 /g, with one or more titanium compounds of the general formula selected from R n Ti(OR′) m and (RO) n Ti(OR′) m , wherein R and R′ are the same or different and are selected from hydrocarbyl groups containing from 1 to 12 carbon and halogens, and wherein n is 0 to 4, m is 0 to 4 and m+n equals 4, to form a titanated silica-containing catalyst support having a Ti content of at least 0.1 wt % based on the weight of the Ti-impregnated catalyst support wherein the supported catalyst system further comprises an alumoxane and a metallocene.

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Номер записи: 15
03-10-2013 дата публикации

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

Номер: US20130261273A1
Автор: Chen Linfeng, Gao Kuanqiang, Leung Tak W., Tao Tao
Принадлежит:

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

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Номер записи: 16
10-10-2013 дата публикации

Methods for producing telechelic polyolefins from terpene initiators

Номер: US20130267669A1
Автор: Casey D. Stokes, Young Chang
Принадлежит: Chevron Oronite Co LLC

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

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Номер записи: 17
07-11-2013 дата публикации

Polymer

Номер: US20130295040A1
Автор: Adam Peter Jarvis, Adrian Carmichael, Andrew Gregory Steward, David M. Haddleton, François LECOLLEY, Giuseppe Mantovani, Lei Tao
Принадлежит: Warwick Effect Polymers Limited

The application provides a method of producing a comb polymer comprising the steps of: (a) Providing: (i) a plurality of monomers which are linear, branched or star-shaped, substituted or non-substituted, and have an olefinically unsaturated moiety, the olefinically unsaturated moiety being capable of undergoing addition polymerisation; (ii) an initiator compound; the initiator compound comprising a homolytically cleavable bond. (iii) a catalyst capable of catalysing the polymerisation of the monomer; and (b) Causing the catalyst to catalyse, in combination with the initiator, the polymerisation of a plurality of the monomers to produce the comb polymer. Catalysts and polymers obtainable by the process are also provided. Preferably, the comb polymer is capable of binding proteins and may be produced from monomers which are alkoxy polyethers, such as poly(alkyleneglycol) or polytetrahydrofuran.

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Номер записи: 18
05-12-2013 дата публикации

COMPOSITIONS AND METHODS FOR MAKING AND USING MULTIFUNCTIONAL POLYMERIZED LIPOSOMES

Номер: US20130324738A1
Автор: Cai Chengzhi, Kumar Amit, Qin Guoting
Принадлежит: University of Houston

According to some embodiments, the present invention provides compositions and methods for making and using multifunctional polymerized liposomes finding relevant application in medical sciences, particularly in bioimaging, diagnostics, drug delivery, and drug formulation. The compositions and methods involve lipids that are both polymerizable and have a “clickable” group that provides the ability to functionalize via a click reaction with various functional moieties useful for the above-listed applications. 1. A catalyst effective for a click reaction , wherein the catalyst comprises Cu(I) and a water soluble triazole ligand comprising oligoethylene glycol.2. The catalyst according to claim 1 , wherein the catalyst comprises:a compound formed by addition of the water soluble triazole ligand and ascorbic acid to copper sulfate.4. The catalyst according to claim 2 , wherein the click reaction comprises:functionalizing polymerized clickable liposomes with at least one clickable group chosen from an azido group and an ethynyl group in the presence of the catalyst.5. The catalyst according to claim 4 , wherein the polymerized clickable liposomes are made by a method comprising:{'sup': 1', '2', '1', '2, 'sub': 2', 'p', '2', 'n, 'mixing clickable lipids of the general formula R—(CH)—≡—≡—(CH)—R, wherein Rand Rare organic groups containing at least one clickable group chosen from an ethynyl group and an'} 'wherein p and n are integers that vary independently from 1-30;', 'azido group;'}treating the clickable lipid solution to form clickable liposomes;polymerizing the clickable liposomes by cooling and UV light irradiation to form the polymerized clickable liposomes.6. The catalyst according to claim 4 , wherein the catalyst is formed in situ in the presence of the polymerized clickable liposomes.8. The catalyst according to claim 1 , wherein the click reaction comprises:functionalizing polymerized clickable liposomes with at least one clickable group chosen from an azido ...

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Номер записи: 19
12-12-2013 дата публикации

Hydrogenation of diene-based polymers

Номер: US20130331524A1
Автор: Matthias Soddemann, Sharon Guo, Zhenli Wei
Принадлежит: LANXESS DEUTSCHLAND GMBH

This invention relates to a process for the hydrogenation of diene-based copolymers in the presence of catalysts on specific carrier materials containing at least one hyper-branched polymer.

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Номер записи: 20
09-01-2014 дата публикации

Carbocatalysts for polymerization

Номер: US20140011972A1
Автор: Christopher W. Bielawski, Daniel R. Dreyer
Принадлежит: Graphea Inc

Provided herein are novel processes for synthesis of polymers and/or polymer composites.

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Номер записи: 21
20-03-2014 дата публикации

Multi-metallic ziegler-natta procatalysts and cataysts prepared therefrom for olefin polymerizations

Номер: US20140080970A1
Автор: Cristina Serrat, Ellen Donkers, Manvel Fontaine, Mehmet Demirors, Sylvie Desjardins
Принадлежит: Dow Global Technologies LLC

Novel catalyst compositions comprising three or more transition metals are effective in increasing catalyst efficiency, reducing polydispersity, and increasing uniformity in molecular weight distribution when used in olefin, and particularly, linear low density polyethylene (LLDPE), polymerizations. The resulting polymers may be used to form differentiated products including, for example, films that may exhibit improved optical and mechanical properties.

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Номер записи: 22
07-01-2016 дата публикации

SYNTHESIS OF AN ACRYLATE POLYMER IN FLOW REACTOR

Номер: US20160002367A1
Автор: He Mingqian, HORN Clemens Rudolf, Hu Jieyu, Jean Patrick, Niu Weijun, Schissel David Neal, Winningham Michael James
Принадлежит:

An improved process for synthesizing acrylic polymers, which is highly controllable to achieve high molecular weight, high conversion rate, and low polydispersity involves continuously introducing initiator(s), acrylic monomer(s), and optionally other monomers capable of polymerizing with the acrylic monomer(s), into a microchannel of a microreactor having an integral micromixer and an integral heat exchanger. 1. A process for synthesizing a polymer , comprising:continuously introducing a fluid stream including at least one radical initiator and at least one monomer into a channel of a reactor having an integral mixer and an integral heat exchanger to effect simultaneous and substantially continuous mixing of the fluid stream, reaction of the monomers, and heat transfer from the resulting polymer product.2. The process of claim 1 , in which the fluid stream includes at least one acrylate.3. The process of claim 1 , in which the fluid stream includes at least one alkyl acrylate and a nitrogen containing monomer copolymerizable with the alkyl acrylate.4. The process of claim 1 , in which the fluid stream includes butyl acrylate and acrylamide.5. The process of claim 1 , in which at least one monomer that is introduced into the microchannel is dissolved in a solvent in which the monomer is miscible.6. The process of claim 1 , in which at least one radical initiator is an azo compound.7. The process of claim 1 , in which at least one radical initiator is azobisisobutyronitrile.8. The process of claim 1 , in which at least one radical initiator that is introduced into the microchannel is dispersed in a solvent in which the radical initiator is miscible.9. The process of claim 1 , in which at least one radical initiator is introduced into the microchannel via a first pump and at least one acrylic monomer is introduced into the microchannel via a second pump.10. The process of claim 1 , in which the copolymer product is poly(butyl acrylate-co-acrylamide).11. The process of ...

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Номер записи: 23
05-01-2017 дата публикации

PROCESS FOR THE PREPARATION OF A SPHERICAL SUPPORT COMPRISING MgCl2 AND ALCOHOL

Номер: US20170002108A1
Автор: Anna Fait, Giuseppina Maria ALGOZZINI, Luca RANZANI, Maria Di Diego, Nicolò ARICH DE FINETTI
Принадлежит: Basell Poliolefine Italia Srl

The present disclosure relates to a process for preparing a MgCl 2 -alcohol adduct which comprises (a) forming a mixture of an MgCl 2 -alcohol adduct in molten form and a liquid which is immiscible with the adduct, (b) subjecting the mixture to a shear stress to obtain an emulsion, and (c) rapidly cooling the emulsion to solidify the disperse phase and collecting the solid adduct particles, the process being characterized by the fact that step (b) is carried out in a device comprising a first outer and second inner cylindrical members that define an annulus between them, wherein at least one of the cylindrical members rotate with respect to the other.

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Номер записи: 24
04-01-2018 дата публикации

Recovery of hydrocarbons from a hydrocarbon recycle

Номер: US20180002458A1
Автор: Mpho Prudence Setlhaku
Принадлежит: SABIC Global Technologies BV

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.

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Номер записи: 25
07-01-2021 дата публикации

ZIEGLER-NATTA CATALYST AND PREPARATION THEREOF

Номер: US20210002390A1
Автор: KIPIANI Georgy, SUMERIN Victor
Принадлежит:

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, ...

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Номер записи: 26
07-01-2021 дата публикации

HEAVY METAL- AND ODOUR-FREE NANOPARTICULATE COMPOSITIONS

Номер: US20210002408A1
Автор: Goto Atsushi, JACKSON Alexander William, LI Feifei, SARKAR Jit, VAN HERK Alexander M., XIAO Longqiang
Принадлежит:

The present invention relates to a nanoparticulate composition comprising nanoparticles formed from an amphipathic block copolymer comprising a hydrophilic block and a hydrophobic block, where the nanoparticles are provided in the form of micelles, cylindrical worm structures or vesicles and the size of the nanoparticles is from 25 to 500 nm, wherein: the composition is substantially free of heavy metals and compounds comprising sulfur. Also disclosed herein is a method of forming said nanoparticulate composition by polymerization induced self-assembly (PISA) via non-transition-metal catalysed controlled radical polymerization (NTMC-CRP). 1. A nanoparticulate composition comprising:nanoparticles formed from an amphipathic block copolymer comprising a hydrophilic block and a hydrophobic block, where the nanoparticles are provided in the form of micelles, cylindrical worm structures or vesicles and the size of the nanoparticles is from 25 to 500 nm, wherein:the composition is substantially free of compounds comprising sulfur; andthe composition is substantially free of a heavy metal.2. The composition according to claim 1 , wherein the amphipathic block copolymers are terminated by a halogen atom.3. The composition according to claim 1 , wherein the composition further comprises an active agent encapsulated in the nanoparticles.4. The composition according to claim 3 , wherein the active agent is selected from one or more of the group consisting of vitamin C claim 3 , peptides claim 3 , glycerol claim 3 , dyes claim 3 , flavours claim 3 , perfume oils claim 3 , citronellal claim 3 , silicon oils claim 3 , organosilicons claim 3 , pesticides claim 3 , Beta-carotene and a pharmacologically active agent.5. (canceled)6. (canceled)7. The composition according to claim 1 , wherein when the nanoparticles are in the form of a vesicle claim 1 , the amphipathic block copolymer is arranged in the form of a membrane with an outer and inner surface claim 1 , which inner surface ...

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Номер записи: 27
03-01-2019 дата публикации

Process for Preparing a Polyethylene in at Least One Continuously Stirred Tank Reactor

Номер: US20190002603A1
Автор: Slawinski Martine, Vantomme Aurélien, WELLE Alexandre, Willocq Christopher
Принадлежит:

Processes for preparing a polyethylene in at least one continuously stirred tank reactor are described herein. The process may comprise the step of: polymerizing ethylene in the presence of at least one supported metallocene catalyst, a diluent, optionally one or more co-monomers, and optionally hydrogen, thereby obtaining the polyethylene, wherein the supported metallocene catalyst comprises a solid support, a co-catalyst and at least one metallocene, wherein the solid support has a surface area within the range of from 100 to 500 m2/g, and has a D50 value within the range of from 4 μm to 18 μm, with D50 being defined as the particle size for which fifty percent by weight of the particles has a size lower than the D50; and D50 being measured by laser diffraction analysis on a Malvern type analyzer. Polyethylene obtained by the disclosed process and articles comprising the polyethylene are also described. 115.-. (canceled)16. An article comprising a polyethylene resin prepared by a process in at least one continuously stirred tank reactor , the process comprising:polymerizing ethylene in the presence of at least one supported metallocene catalyst, a diluent, optionally one or more co-monomers, and optionally hydrogen, thereby obtaining the polyethylene resin,{'sup': '2', 'wherein the supported metallocene catalyst comprises a solid support, a co-catalyst and at least one metallocene, wherein the solid support has a surface area within the range of from 100 to 350 m/g, and has a D50 value within the range of from 4 μm to 18 μm, with D50 being defined as the particle size for which fifty percent by weight of the particles has a size lower than the D50; and D50 being measured by laser diffraction analysis on a Malvern type analyzer.'}17. The article according to claim 16 , wherein the polyethylene resin at the end of the process has a D50 of at least 100 and at most 400 μm; and Si content lower than 60 ppm by weight.18. The article according to claim 16 , wherein the ...

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Номер записи: 28
14-01-2016 дата публикации

SUPPORTED POLYOLEFIN CATALYST AND PREPARATION AND APPLICATION THEREOF

Номер: US20160009830A1
Автор: GAO Kejing, HU Xuteng, HUANG Qigu, Li Hongming, LIU Hongji, LIU Zhi, LU Jianchun, Yi Jianjun, ZHANG Mingge, ZHU Baichun
Принадлежит: PETROCHINA COMPANY LIMITED

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

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Номер записи: 29
10-01-2019 дата публикации

SUPPORTED HYBRID CATALYST SYSTEM FOR ETHYLENE SLURRY POLYMERIZATION AND METHOD FOR PREPARING ETHYLENE POLYMER WITH THE CATALYST SYSTEM

Номер: US20190010256A1
Автор: CHOI Yi Young, HAN Chang Woan, KIM Se Young, Lee Ki Soo, LEE Sung Min, LEE Ye Jin, SUN Soon Ho
Принадлежит:

The present invention relates to a supported hybrid catalyst system for ethylene slurry polymerization and a method for preparing ethylene polymer therewith. The supported hybrid catalyst system according to the present invention may exhibit high activity during ethylene slurry polymerization, and enables preparation of an ethylene polymer having a narrow molecular weight distribution but excellent processability. 5. The supported hybrid catalyst system for ethylene slurry polymerization according to claim 1 , wherein the supported hybrid catalyst system further comprises one or more cocatalysts selected from the group consisting of compounds represented by the following Chemical Formulas 7 to 9:{'br': None, 'sup': '71', 'sub': 'c', '—[Al(R)—O]—\u2003\u2003[Chemical Formula 7]'}wherein, in Chemical Formula 7,c is an integer of 2 or more; and{'sup': '71', 'claim-text': {'br': None, 'sup': '81', 'sub': '3', 'D(R)\u2003\u2003[Chemical Formula 8]'}, 'each Ris each independently a halogen, or a C1-20 hydrocarbyl or C1-20 hydrocarbyl substituted with a halogen,'}wherein, in Chemical Formula 8,D is aluminum or boron; and{'sup': '81', 'claim-text': {'br': None, 'sup': +', '−, 'sub': '4', '[L—H][Q(E)]\u2003\u2003[Chemical Formula]9'}, 'each Ris independently a halogen, or a C1-20 hydrocarbyl or C1-20 hydrocarbyl group substituted with a halogen,'}wherein, in Chemical Formula 9,L is a neutral Lewis base;[L—H]+ is a Bronsted acid;Q is boron or aluminum in an oxidation state of +3; andeach E is independently a halogen having a hydrogen valence of one or more, or a C6-20 aryl or C1-20 alkyl unsubstituted or substituted with a C1-20 hydrocarbyl, alkoxy, or phenoxy functional group.6. The supported hybrid catalyst system for ethylene slurry polymerization according to claim 5 , wherein the cocatalyst is one or more selected from the group consisting of trimethyl aluminum claim 5 , triethyl aluminum claim 5 , triisopropyl aluminum claim 5 , triisobutyl aluminum claim 5 , ...

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Номер записи: 30
17-01-2019 дата публикации

GAS PHASE POLYMERISATION OF ETHYLENE

Номер: US20190016831A1
Автор: Al-Sayari Omar, ALIYEV Vugar, Hamed Orass
Принадлежит:

The invention relates to a process for the production of polyethylene by gas phase polymerisation of ethylene in the presence of a supported chromium oxide based catalyst which is modified with an amino alcohol wherein the molar ratio of amino alcohol:chromium ranges between 0.5:1 and 1.5:1 wherein the support is silica having a surface area (SA) between 250 m2/g and 400 m2/g and a pore volume (PV) between 1.1 cm3/g and less than 2.0 cm3/g. 1. A process for the production of polyethylene by gas phase polymerisation of ethylene in the presence of a supported chromium oxide based catalyst composition which is modified with an amino alcohol wherein the molar ratio of amino alcohol:chromium ranges between 0.5:1 and 1.5:1 , wherein the support is silica having a surface area (SA) between ≥450 m/g and ≤550 m/g and a pore volume (PV) between ≥1.7 cm/g and ≤2.0 cm/g and wherein the catalyst comprises a titanium compound.2. The process according to characterised in that the amount of chromium in the supported catalyst is ≥0.1% by weight and ≤0.5% by weight.3. The process according to claim 1 , characterised in that the molar ratio of amino alcohol:chromium ranges between 0.7:1 and 1.5:1.4. The process according to claim 1 , characterised in that the molar ratio of amino alcohol:chromium ranges between 1:1 and 1.3:1.6. The process according to characterised in that the amino alcohol is 4-(cyclohexylamino) pentan-2-ol or 4-[(2-methylcyclohexyl) amino]pentan-2-ol.7. The process according to claim 1 , characterised in that the titanium compound a compound according to the formulas Ti (OR)Xand Ti (R)X claim 1 , wherein{'sup': 1', '2, 'sub': 1', '20', '1', '20', '1', '20, 'Rand Rrepresent an (C-C) alkyl group, (C-C) aryl group or (C-C) cycloalkyl group,'}X represents a halogen atom, andn represents a number satisfying 0≥n≤4.8. Polyethylene obtained with the process according to claim 1 , characterised in that the polyethylene hasa high-load melt index (HLMI)≥5 g/10 min and ≤10 g/ ...

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Номер записи: 31
17-01-2019 дата публикации

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

Номер: US20190016832A1
Автор: Meverden Craig, Mitchell Brandi
Принадлежит: Braskem America, Inc.

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 , ...

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Номер записи: 32
28-01-2016 дата публикации

METHOD FOR PRODUCING COPOLYMER FOR SEMICONDUCTOR LITHOGRAPHY CONTAINING REDUCED AMOUNT OF METAL IMPURITIES, AND METHOD FOR PURIFYING POLYMERIZATION INITIATOR FOR PRODUCTION OF COPOLYMER

Номер: US20160023992A1
Автор: SUZUKI Youji
Принадлежит:

A method for producing a copolymer for semiconductor lithography containing less metal impurities, and a method for purifying a polymerization initiator for production of the copolymer, are provided. The method for purifying a polymerization initiator to be used for production of a polymer includes a filtering step wherein a solution of a polymerization initiator dissolved in an organic solvent is allowed to pass through a filter having a nominal pore size of not more than 1.0 μm, to reduce the sodium content of the polymerization initiator solution to not more than 300 ppb with respect to the weight of the polymerization initiator. Further, the method for producing a copolymer for semiconductor lithography includes a polymerization step wherein the polymer for semiconductor lithography is synthesized by a radical polymerization reaction in the presence of a polymerization initiator purified by the above purification method. 1. A method for purifying a polymerization initiator to be used in production of a polymer ,said method comprising a filtering step wherein a solution of a polymerization initiator dissolved in an organic solvent is allowed to pass through a filter having a nominal pore size of not more than 1.0 μm, to reduce the sodium content of said polymerization initiator solution to not more than 300 ppb with respect to the weight of said polymerization initiator.2. The method for purifying a polymerization initiator according to claim 1 , wherein said filter is a membrane filter.3. The method for purifying a polymerization initiator according to claim 1 , wherein said filter is a hollow fiber membrane filter.4. The method for purifying a polymerization initiator according to claim 1 , wherein a filter material of said filter is made of polyolefin.5. The method for purifying a polymerization initiator according to claim 1 , wherein a filter material of said filter is made of a fluorocarbon polymer.6. The method for purifying a polymerization initiator ...

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Номер записи: 33
25-01-2018 дата публикации

Bimodal Propylene Polymers and Sequential Polymerization

Номер: US20180022843A1
Автор: Day Gregory S., Holtcamp Matthew W., Luo Lubin
Принадлежит:

This invention relates to high porosity (≧15%) and/or low pore diameter (PD<165 μm) propylene polymers and propylene polymerization processes using single site catalyst systems with supports having high surface area (SA≧400 m/g), low pore volume (PV≦2 mL/g), a specific mean pore diameter range (PD=1-20 nm), and high average particle size (PS≧30 μm). 122.-. (canceled)23. A propylene polymer comprising:at least 50 mol % propylene;a 1% Secant flexural modulus of at least 1000 MPa, determined according to ASTM D 790 (A, 1.0 mm/min);{'sup': '13', 'more than 5 and less than 200 regio defects per 10,000 propylene units, determined by C NMR;'}a multimodal molecular weight distribution;if comonomer is present, a CDBI of 50% or more; anda matrix having a porosity of 15 percent or more, and median pore diameter less than 165 m, as determined by mercury intrusion porosimetry.24. The propylene polymer of claim 23 , wherein the median pore diameter is from 0.1 up to 160 μm.25. The propylene polymer of claim 23 , further comprising:a total propylene content of at least 75 wt %;if comonomer is present, a total co-monomer content from about 3 wt % up to about 25 wt %;if comonomer is present, a CDBI of at least 60%;a matrix porosity of at least 35%;a matrix median pore diameter greater than 8 m and less than 150 m, as determined by mercury intrusion porosimetry;at least 50% isotactic pentads;{'sup': '13', 'more than 10 regio defects per 10,000 propylene units, determined by C NMR;'}a 1% Secant flexural modulus of at least 1800 MPa;a melting point (Tm, DSC peak second melt) of at least 145° C.;an Mw/Mn as measured by GPC-DRI of greater than 1 up to 5;an overall Mw/Mn of greater than 1 to 20 and at least one mode having an Mw/Mn of greater than 1 to 5;at least 95% by volume having a particle size greater than 150 am up to 10 mm;a melt flow rate (MFR, ASTM 1238, 230° C., 2.16 kg) from about 0.1 dg/min up to about 300 dg/min;an Mw (as measured by GPC-DRI) from 50,000 to 1,000,000 g/mol; ...

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Номер записи: 34
10-02-2022 дата публикации

Acrylic Polymers Having Controlled Placement of Functional Groups

Номер: US20220041784A1
Автор: Brandon S. Miller, Christopher L. Lester, Kyle R. Heimbach, Michael J. Zajaczkowski, William L. Bottorf
Принадлежит: Avery Dennison Corp

Acrylic copolymers that include the controlled placement of functional groups within the polymer structure are provided. The copolymers contain a reactive segment and a non-reactive segment and are manufactured via a controlled radical polymerization process. The copolymers are useful in the manufacture of adhesives and elastomers.

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Номер записи: 35
24-04-2014 дата публикации

POLYMER AND METHOD FOR PRODUCING SAME

Номер: US20140114034A1
Автор: Oshikiri Tomoya, Yasuda Atsushi
Принадлежит: MITSUBISHI RAYON CO., LTD.

The time when at least a monomer and a chain transfer agent are supplied in a reactor and the solution temperature in the reactor has reached a predetermined polymerization temperature is set as starting time (T), and the time when a process to terminate the polymerization is started is set as ending time (T). A polymerization initiator is supplied into the reactor between (T) and just before [(T)−(T)/2] and between [(T)−(T)/2] and (T). The total mass of the polymerization initiator supplied to the reactor between (T) and (T) is set as (I), and the total mass of the polymerization initiator supplied between [(T−T)/2] and (T) is set as (I). The (I) is set 50 to 100 mass % of the entire polymerization initiator. Using a production method in which 0.50<(I)/(I)<1.00 is satisfied, a polymer is produced at a high polymerization rate showing less variation of molecular weight and having less amount of chain transfer agent residue remaining at an end of the polymer chain. 1. A polymer , comprising:a structural unit having a group to be modified by acid,wherein a proportion of an end group having a thiocarbonylthio structure to all growing end groups of the polymer is from 0.001 to 30 mol %, anda proportion of a number of structural units that act as organic acid is less than 2 mol %.2. The polymer according to claim 1 , whereina weight-average molecular weight of the polymer measured by gel permeation chromatography with a differential refractive index detector and determined in terms of polystyrene is from 2,500 to 1,000,000, anda peak area corresponding to a molecular weight of no greater than 1,000 in an elution curve is no greater than 1.0% of all peak areas of the polymer.3. The polymer according to claim 1 , wherein the polymer is suitable for lithography applications.4. The polymer according to claim 1 , wherein the group to be modified by acid is an acid leaving group.5. The polymer according to claim 1 , further comprising a structural unit having a group with a ...

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Номер записи: 36
02-02-2017 дата публикации

Method for producing water-soluble homopolymers or copolymers which comprise (meth)acrylamide

Номер: US20170029546A1
Автор: Björn LANGLOTZ
Принадлежит: BASF SE

A process for preparing water-soluble homo- or copolymers comprising (meth)acrylamide by free-radical polymerization of an aqueous solution of monoethylenically unsaturated monomers comprising at least (meth)acrylamide in the presence of at least one stabilizer for prevention of polymer degradation by molecular oxygen. The stabilizer is preferably one selected from the group of sulfur compounds, sterically hindered amines, N-oxides, nitroso compounds, aromatic hydroxyl compounds and ketones, more preferably 2-mercaptobenzothiazole or a salt thereof.

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Номер записи: 37
02-02-2017 дата публикации

Encapsulated Catalyst for Aerospace Grade Resin Systems

Номер: US20170029672A1
Автор: Gwen M. Gross, Keith Daniel Humfeld
Принадлежит: Boeing Co

Methods and compositions, and components comprising the compositions, are disclosed relating to improved resin-based adhesives comprising encapsulating at least a catalyst compound. Further methods and compositions are disclosed relating to encapsulated catalysts in uncured resin-based adhesives, said encapsulated catalysts configured to release the catalyst compound and cure the uncured resin-based adhesive on-demand.

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Номер записи: 38
17-02-2022 дата публикации

OPTICALLY BRIGHTENED LATEXES

Номер: US20220049025A1
Автор: Atkinson David, CORPET Damien Julien, DOMINGUEZ Cristina, Jackson Andrew
Принадлежит:

The present invention relates to a method of preparing an aqueous composition by emulsion polymerization of at least one ethylenically unsaturated monomer in the presence of at least one water-soluble diaminostilbene disulphonic optical brightener, as well as to the aqueous composition obtainable by said method, the use of said aqueous composition for optically brightening of a cellulosic substrate and the cellulosic substrate treated with the aqueous composition. 2. Method according to claim 1 , wherein in the at least one water-soluble diaminostilbene disulphonic optical brightener of formula (1){'sup': 1', '6, 'sub': 1', '4', '2', '2', '2, 'Rand Rsignify independently from each other hydrogen, methyl, linear or branched Cto Chydroxyalkyl or CHCHCONH,'}{'sup': 2', '4, 'sub': 1', '4', '1', '4', '2', '2', '2', '2', '2, 'Rand Rsignify independently from each other hydrogen, linear or branched Cto Calkyl, linear or branched Cto Chydroxyalkyl, CHCHCONHor CHCHCN,'}{'sup': 3', '5, 'sub': 1', '4', '1', '4', '2', '2', '2', '2', '2', '2', '2, 'Rand Rsignify independently from each other linear or branched Cto Calkyl, linear or branched Cto Chydroxyalkyl, CH(COM)CHCOM, CH(COM)CHCHCOM, benzyl or'}{'sup': 2', '3, 'Rand Rsignify together with their neighbouring nitrogen atom a morpholino ring and/or'}{'sup': 4', '5, 'Rand Rsignify together with their neighbouring nitrogen atom a morpholino ring, and'}{'sup': 7', '8, 'Rand Rsignify independently from each other hydrogen or methyl.'}3. Method according to claim 1 , wherein in the at least one water-soluble diaminostilbene disulphonic optical brightener of formula (1){'sup': 1', '6, 'Rand Rsignify hydrogen,'}{'sup': 2', '4, 'sub': 1', '2', '1', '3, 'Rand Rsignify independently from each other hydrogen, linear or branched Cto Calkyl, linear or branched Cto Chydroxyalkyl,'}{'sup': 3', '5, 'sub': 1', '2', '1', '3', '2', '2', '2', '2', '2', '2', '2, 'Rand Rsignify independently from each other linear or branched Cto Calkyl, linear or ...

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Номер записи: 39
17-02-2022 дата публикации

Process for Preparing a Catalyst for Olefin Polymerization

Номер: US20220049026A1
Автор: Hye Ran Park, Seongjae Lim, Seungil Choi, Tae Uk Jeong, Ui Gap Joung
Принадлежит: Hanwha Solutions Corp

The present invention relates to a process for preparing a catalyst for olefin polymerization. Specifically, the present invention relates to a process for preparing a supported metallocene catalyst capable of enhancing the operational stability during olefin polymerization by treating the supported metallocene catalyst with an antistatic agent. In the process for preparing a supported metallocene catalyst according to the embodiment of the present invention, it is possible to enhance the operational stability during olefin polymerization by treating the supported metallocene catalyst with an antistatic agent in an improved method.

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Номер записи: 40
31-01-2019 дата публикации

COMPOUND, COMPOSITION EMPLOYING THE SAME, AND POLYMER PREPARING THEREFROM

Номер: US20190031792A1
Автор: Chen Wen-Hua, Chu Yu-Lin, HAN Yu-Min, Huang Chih-Feng, LEE Hsuan-Wei, LIN Chih-Hsiang
Принадлежит: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

A compound, a composition employing the same and a polymer prepared therefrom are provided. The compound has a structure represented by Formula (I): 3. The compound as claimed in claim 1 , wherein Ris methyl claim 1 , ethyl claim 1 , propyl claim 1 , isopropyl claim 1 , n-butyl claim 1 , iso-butyl claim 1 , tert-butyl claim 1 , pentyl claim 1 , hexyl claim 1 , cyclohexyl claim 1 , phenyl claim 1 , biphenyl claim 1 , pyridyl claim 1 , furyl claim 1 , carbazole claim 1 , naphthyl claim 1 , anthryl claim 1 , phenanthrenyl claim 1 , imidazolyl claim 1 , pyrimidinyl claim 1 , quinolinyl claim 1 , indolyl claim 1 , thiazolyl claim 1 , methoxy claim 1 , ethoxy claim 1 , propoxy claim 1 , isopropoxy claim 1 , n-butoxy claim 1 , iso-butoxy claim 1 , tert-butoxy claim 1 , pentoxy claim 1 , or hexyloxy.4. A composition claim 1 , comprises:a first monomer, wherein the first monomer is a vinyl-based monomer; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the compound as claimed in .'}5. The composition as claimed in claim 4 , further comprising:an initiator.6. The composition as claimed in claim 4 , wherein the first monomer comprises acrylate-based monomer claim 4 , methacrylate-based monomer claim 4 , or styrene-based monomer.7. The composition as claimed in claim 8 , wherein the acrylate-based monomer comprises methyl acrylate claim 8 , ethyl acrylate claim 8 , isopropyl acrylate claim 8 , or butyl acrylate; the methacrylate-based monomer comprises methyl methacrylate claim 8 , ethyl methacrylate claim 8 , propyl methacrylate claim 8 , butyl methacrylate claim 8 , benzyl methacrylate claim 8 , hexyl methacrylate claim 8 , cyclohexyl methacrylate claim 8 , dodecyl methacrylate claim 8 , or dimethylaminoethyl methacrylate; and the styrene-based monomer comprises styrene claim 8 , α-methyl styrene claim 8 , para-methyl styrene claim 8 , meta-methyl styrene claim 8 , ortho-methyl styrene claim 8 , α-ethyl styrene claim 8 , 2 claim 8 ,4-dimethyl styrene claim 8 , para-tert- ...

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Номер записи: 41
30-01-2020 дата публикации

Process for gas-phase polymerization of olefins

Номер: US20200031957A1
Автор: Antonio Mazzucco, Davide TARTARI, Enrico Balestra, Gabriele Mei, Paola Massari, Tiziana Caputo
Принадлежит: Basell Poliolefine Italia Srl

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.

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Номер записи: 42
04-02-2021 дата публикации

ETHYLENE COPOLYMERS AND FILMS WITH EXCELLENT SEALING PROPERTIES

Номер: US20210032450A1
Автор: Ebrahimi Marzieh, Goyal Shivendra, Kasiri Sepideh, Kleczek Monika, Konaganti Vinod, Sibtain Fazle
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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 ...

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Номер записи: 43
05-02-2015 дата публикации

Organic/Inorganic Composite, Manufacturing Method Therefor, Organic/Inorganic Composite Film, Manufacturing Method Therefor, Photonic Crystal, Coating Material, Thermoplastic Composition, Microstructure, Optical Material, Antireflection Member, and Optical Lens

Номер: US20150037535A1
Автор: Kenya Tanaka, Mitsuyo Akimoto
Принадлежит: Asahi Kasei Chemicals Corp

The present invention relates to an organic-inorganic composite comprising an inorganic compound particle and a polymer attached to the inorganic compound particle, wherein a molecular weight distribution of the polymer is 2.3 or less, and a content of the inorganic compound particle is 96% by mass or less with respect to a total mass of the organic-inorganic composite. Moreover, the present invention relates to a photonic crystal, an organic-inorganic composite film, a coating material, and a thermoplastic composition comprising the organic-inorganic composite.

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Номер записи: 44
08-02-2018 дата публикации

CATALYST COMPOSITION FOR PREPARING CONJUGATED DIENE-BASED POLYMER AND CONJUGATED DIENE-BASED POLYMER PREPARING USING THE SAME

Номер: US20180037675A1
Автор: Ahn Jeong Heon, Bae Hyo Jin, Kang Suk Youn, Kim Ji Eun, Oh Kyoung Hwan, Park Sung Ho
Принадлежит: LG CHEM, LTD.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. 1. A catalyst composition for preparing a conjugated diene-based polymer , the composition comprising:a functionalizing agent of the following Formula 1;a rare earth metal compound;an alkylating agent; and {'br': None, 'sub': 1', 'a', '2', '3-a, '(X)—N—(X)\u2003\u2003[Formula 1]'}, 'a halogen compoundin Formula 1,a is an integer of 1 or 2,{'sub': 1', '2', '1-20', 'a', 'b', 'c', 'd', '1', '2', '1', '2', 'a', 'b', 'c', 'd', '1-20', '3-20', '6-20', '7-20', '7-20', '1-20', '3-20', '6-20', '7-20', '7-20, 'Xand Xare each independently selected from the group consisting of a hydrogen atom, monovalent Chydrocarbon, —OR, —SiRRRand a covalent bonding functional group, or adjacent two functional groups in Xand Xare connected to form a heterocyclic compound, where at least one of Xand Xincludes the covalent bonding functional group, where R, R, R, and Rare each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Carylalkyl, and —NR′R″, where R′ and R″ are each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Carylalkyl, and a covalent bonding functional group, and'}the covalent bonding functional group is a functional group containing a carbon-carbon double bond.2. The catalyst composition for preparing a conjugated diene-based polymer of claim 1 , wherein the covalent bonding functional group is selected from the group consisting of Calkenyl and (meth)acryl.3. The catalyst composition for preparing a ...

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Номер записи: 45
08-02-2018 дата публикации

METHOD FOR PREPARING POLYOLEFIN

Номер: US20180037676A1
Автор: CHO Kyung Jin, CHOI Yi Young, Kwon Heon Yong, Lee Ki Soo, Lee Yong Ho, SONG Eun Kyoung, YOU Young Suk
Принадлежит:

The present invention provides a method for preparing a polyolefin having a broad molecular weight distribution. More specifically, the present invention provides a method for preparing a polyolefin having a broad molecular weight distribution and an ultra-high molecular weight in which an organometallic complex containing a specific Ti—Al complex structure is used as a molecular weight controller (i.e., molecular weight enhance) in the polymerization of an olefin monomer, thereby enabling both solution polymerization and slurry polymerization, particularly enabling the molecular weight distribution to be more readily and effectively controlled. 2. The method for preparing a polyolefin according to claim 1 , wherein at least one of Rto Rin the chemical formula 1 is an alkoxyalkyl having 1 to 10 carbon atoms.3. The method for preparing a polyolefin according to claim 1 , wherein at least one of Rto Rin the chemical formula 1 is an alkoxyalkyl having 8 to 10 carbon atoms.4. The method for preparing a polyolefin according to claim 1 , wherein claim 1 , in the chemical formula 1 claim 1 , Ris a branched alkylene group having 4 to 10 carbon atoms claim 1 , and Rand Rare each independently an alkyl group having 4 to 10 carbon atoms.5. The method for preparing a polyolefin according to claim 1 , wherein the compound of the chemical formula 1 is included in a molar ratio of 0.05 to 1 with respect to 1 mole of the transition metal contained in the metallocene compound.7. The method for preparing a polyolefin according to claim 1 , wherein the metallocene catalyst further includes a support selected from the group consisting of silica claim 1 , silica-alumina claim 1 , and silica-magnesia claim 1 , andan amount of hydroxyl group on the surface of the support is 0.1 to 10 mmol/g.8. The method for preparing a polyolefin according to claim 1 , wherein the metallocene catalyst includes a metallocene compound claim 1 , a cocatalyst claim 1 , and a metallocene supported catalyst in ...

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Номер записи: 46
24-02-2022 дата публикации

SUPPORTED THREE-CENTER CATALYST AND PREPARATION METHOD AND APPLICATION

Номер: US20220056165A1
Автор: Jin Yulong, Liu Boping
Принадлежит: SOUTH CHINA AGRICULTURE UNIVERSITY

A supported three-center catalyst, a preparation method and the use are provided. The catalyst comprises a porous inorganic carrier, an organic chromium active component, an inorganic chromium active component and an inorganic vanadium active component, and may further comprise a catalyst modifying component. A method involves, by means of one or more steps of dipping and drying or dipping, drying and high-temperature roasting procedures, respectively converting an organic chromium source, a chromium source, a vanadium source and a Q component into an organic chromium active component precursor, an inorganic chromium active component precursor, an inorganic vanadium active component precursor and a catalyst modifying component that are supported on the surface of the porous inorganic carrier, and then activating same with an organometallic cocatalyst or a polymerization monomer, so as to obtain the supported three-center catalyst. 1. A supported three-center catalyst , characterized in that it comprises a porous inorganic carrier , an organic chromium active component , an inorganic chromium active component and an inorganic vanadium active component; or , in addition to the porous inorganic carrier , the organic chromium active component , the inorganic chromium active component , and the inorganic vanadium active component , the catalyst further comprises a catalyst modification component;the organic chromium active component is obtained after a precursor of the organic chromium active component is activated by an organometallic co-catalyst or a polymerization monomer, and the precursor of the organic chromium active component is obtained by loading an organic chromium source comprising at least one of a cyclopentadienyl ligand, an indenyl ligand, a fluorenyl ligand, a cyclopentadienyl derivative ligand, an indenyl derivative ligand, and a fluorenyl derivative ligand on the surface of the porous inorganic carrier;the inorganic chromium active component is obtained ...

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Номер записи: 47
15-02-2018 дата публикации

EMULSION COMPOSITION AND PRODUCTION METHOD THEREOF, AND LAMINATE AND PRODUCTION METHOD THEREOF

Номер: US20180043667A1
Автор: INOUE Akihisa, Kawashima Naoyuki, MAKIUCHI Naoyuki, MARUYAMA Taichi, TONSHO Shinji
Принадлежит: ARAKAWA CHEMICAL INDUSTRIES, LTD.

An emulsion composition according to the present invention includes: a polymerizable compound comprising two or more (meth)acryloyl groups; a surfactant; and a dispersion medium including water as a principal component, in which an oil droplet diameter Dcorresponding to a diameter at cumulative 90% by volume in the oil droplet size distribution of oil droplets comprising the polymerizable compound and the surfactant, measured according to a laser diffraction and scattering measurement process is less than 1.8 μm. A maximum oil droplet diameter Dof the oil droplets, measured according to the laser diffraction and scattering measurement process is preferably less than 4.0 μm. A content of the polymerizable compound in the composition with respect to 100 parts by mass of a total of components other than the dispersion medium is preferably no less than 40 parts by mass. The oil droplets may further comprise an inorganic particle. 1. An emulsion composition comprising: a polymerizable compound comprising two or more (meth)acryloyl groups; a surfactant; and a dispersion medium comprising water as a principal component ,{'sub': '90', 'wherein an oil droplet diameter Dcorresponding to a diameter at cumulative 90% by volume in oil droplet size distribution of oil droplets comprising the polymerizable compound and the surfactant, measured according to a laser diffraction and scattering measurement process is less than 1.8 μm.'}2. The emulsion composition according to claim 1 , wherein a maximum oil droplet diameter Dof the oil droplets claim 1 , measured according to the laser diffraction and scattering measurement process is less than 4.0 μm.3. The emulsion composition according to claim 1 , wherein a content of the polymerizable compound in the composition with respect to 100 parts by mass of a total of components other than the dispersion medium is no less than 40 parts by mass.4. The emulsion composition according to claim 1 , wherein a content of the surfactant in the ...

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Номер записи: 48
24-02-2022 дата публикации

Battery with halogen sequestering agent

Номер: US20220059846A1
Автор: Brian Stanley Hawkett, Duc Ngoc Nguyen, Nathan Coad, Shufeng Zhao, The Vien HUYNH, Thomas Ellis, Thomas Maschmeyer
Принадлежит: Gelion Technologies Pty Ltd

The present specification relates to a battery, comprising an anode, a cathode, an electrolyte disposed between the anode and the cathode, a halogen in contact with the cathode, and a metal in contact with the anode, wherein the halogen is in contact with a polymeric halogen sequestering agent (HSA) which is a polymer comprising a moiety capable of sequestering the halogen.

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Номер записи: 49
14-02-2019 дата публикации

Methods of Preparing Compositions for Containers and Other Articles and Methods of Using Same

Номер: US20190048126A1
Автор: "OBrien Robert M.", Deng Lan, Evans Richard H, Niederst Jeffrey, Prouvost Benoit, Romagnoli Kevin, Santure David J., Von Maier Mark S.
Принадлежит: SWIMC LLC

This invention provides a polymer, which is preferably a polyether polymer. The polymer may be uses in coating compositions. Containers and other articles comprising the polymer and methods of making such containers and other articles are also provided. The invention further provides compositions including the polymer (e.g., powder coatings), which have utility in a variety of coating end uses, including, for example, valve and pipe coatings. 112-. (canceled)14. The food or beverage packaging container of claim 13 , wherein the polyether polymer is completely free of bound polyhydric phenols claim 13 , or epoxides thereof claim 13 , having estrogenic activity greater than that of 4 claim 13 ,4′-(propane-2 claim 13 ,2-diyl)bis(2 claim 13 ,6-dibromophenol).15. The food or beverage packaging container of claim 13 , wherein the polyether polymer is completely free of bound polyhydric phenols claim 13 , or epoxides thereof claim 13 , having estrogenic activity greater than that of 2 claim 13 ,2-bis(4-hydroxyphenyl)propanoic acid.16. The food or beverage packaging container of claim 13 , wherein the coating composition is substantially free of mobile or bound bisphenol A claim 13 , bisphenol F claim 13 , bisphenol S claim 13 , polyhydric phenols having estrogenic activity greater than or equal to that of bisphenol S claim 13 , and epoxides thereof.18. The method of claim 17 , wherein the degree of polymerization is over 8.19. The method of claim 17 , wherein the degree of polymerization is over 12.20. The method of claim 17 , wherein the halohydrin is epichlorohydrin.22. The method of claim 17 , comprising the further step of reacting the polyether polymer with a hindered polyhydric phenol compound having an atom or group having an atomic weight of at least 15 Daltons in an ortho position relative to an oxygen atom on a phenol ring in the presence of a nitrogen-containing catalyst having at least one bridgehead Nitrogen atom.23. The method of claim 21 , wherein the ...

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Номер записи: 50
08-05-2014 дата публикации

Precursor for polyolefin catalyst

Номер: US20140128249A1
Автор: Ajay Kothari, Bhavesh Desai, Umesh Makwana, Virendrakumar Gupta
Принадлежит: Reliance Industries Ltd

The present invention provides titanium based precursor for polyolefin catalyst with desired morphology and high particle strength. The of preparation of the precursor in accordance with the present invention obviates the use of iodine.

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Номер записи: 51
13-02-2020 дата публикации

Organic tellurium compound, method for producing same, living radical polymerization initiator, method for producing vinyl polymer, and vinyl polymer

Номер: US20200048192A1
Автор: Osamu Ito, Shigeru Yamago
Принадлежит: KYOTO UNIVERSITY, Otsuka Chemical Co Ltd

where in the general formula (2) R4 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R5 and R6 each independently represent an alkylene group having 2 to 8 carbon atoms, and a represents an integer from 0 to 10.

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Номер записи: 52
25-02-2021 дата публикации

Surfactant as Titanation Ligand

Номер: US20210054112A1
Автор: CLEAR Kathy S., ELLIS William C., GAGAN Deloris R., MCDANIEL Max P.
Принадлежит:

A method comprising contacting a silica support with a titanium-containing solution to form a titanated silica support, wherein the titanium-containing solution comprises a titanium compound, a solvent, and a surfactant. 1. A pre-catalyst composition comprising:a) a silica support comprising silica wherein an amount of silica is in a range of from about 70 wt. % to about 95 wt. % based upon a total weight of the silica support;b) a titanium-containing compound wherein an amount of titanium is in a range of from about 0.1 wt. % to about 10 wt. % based upon the total weight of the silica support;c) a chromium-containing compound wherein an amount of chromium is in a range of from about 0.1 wt. % to about 10 wt. % based upon the total weight of the silica support;d) a surfactant wherein the surfactant comprises a non-ionic surfactant, a cationic surfactant, or a combination thereof;e) a carboxylate wherein the carboxylate comprises a multi carboxylate, an alpha-hydroxy carboxylate, or a combination thereof; andf) a solvent.2. The pre-catalyst composition of wherein the titanium-containing compound comprises a titanium(IV) compound at least one carboxylate ligand.3. The pre-catalyst composition of wherein the titanium-containing compound has a formula Ti(OR) claim 1 , TiO(OR) claim 1 , Ti(OR)(acac) claim 1 , or Ti(OR)(oxal) claim 1 , wherein “acac” is acetylacetonate claim 1 , “oxal” is oxalate claim 1 , and each R independently is ethyl claim 1 , isopropyl claim 1 , n-propyl claim 1 , isobutyl claim 1 , or n-butyl.4. The pre-catalyst composition of wherein the chromium-containing compound comprises chromium trioxide claim 1 , chromium acetate claim 1 , chromium nitrate claim 1 , chromium sulfate claim 1 , tertiary butyl chromate claim 1 , biscyclopentadienyl chromium(II) claim 1 , chromium(III) acetylacetonate claim 1 , or a combination thereof.5. The pre-catalyst composition of wherein the carboxylate is provided by oxalic acid claim 1 , citric acid claim 1 , lactic ...

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Номер записи: 53
22-02-2018 дата публикации

PROCESS FOR TRANSITIONING BETWEEN INCOMPATIBLE CATALYSTS

Номер: US20180051102A1
Автор: Althukair Mohammed
Принадлежит:

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 ...

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Номер записи: 54
20-02-2020 дата публикации

Polymerization Processes Utilizing Chromium-Containing Catalysts

Номер: US20200055966A1
Автор: Lin Zerong, Smith Edward F., Trapp Keith W.
Принадлежит: ExxonMobil Chemical Patents Inc.

Embodiments of an invention disclosed herein relate to a process for adjusting one or more of the high load melt index (I), weight average molecular weight (M), and molecular weight distribution (M/M) of one or more of polyolefin polymers during a polymerization reaction or adjusting the catalyst activity of the polymerization reaction, the process includes a) pre-contacting at least one chromium-containing catalyst with at least one aluminum alkyl to form a catalyst mixture outside of a polymerization reactor; b) passing the catalyst mixture to the polymerization reactor; c) contacting the catalyst mixture with one or more monomers under polymerizable conditions to form the one or more of polyolefin polymers; and d) recovering the one or more of polyolefin polymers. 1. A process for adjusting one or more of the high load melt index (I) , weight average molecular weight (M) , and molecular weight distribution (M/M) of one or more of polyolefin polymers during a polymerization reaction or adjusting the catalyst activity of the polymerization reaction , the process comprising:a) pre-contacting at least one activated chromium-containing catalyst with at least one aluminum alkyl to form a catalyst slurry mixture outside of a polymerization reactor;b) passing the catalyst slurry mixture to the polymerization reactor;c) contacting the catalyst mixture with one or more monomers under polymerizable conditions to form the one or more of polyolefin polymers; andd) recovering the one or more of polyolefin polymers.2. The process of claim 1 , wherein the aluminum alkyl is pre-contacted with the at least one chromium-containing catalyst at an Al/Cr molar ratio of 0.01 to 10.00.3. The process of claim 1 , wherein the aluminum alkyl is pre-contacted with the at least one chromium-containing catalyst at an Al/Cr molar ratio of 0.05 to 8.00.4. The process of claim 1 , wherein the aluminum alkyl is pre-contacted with the at least one chromium-containing catalyst at an Al/Cr molar ...

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Номер записи: 55
05-03-2015 дата публикации

SUPPORTED METAL OXIDE DOUBLE ACTIVE CENTER POLYETHYLENE CATALYST, PROCESS FOR PREPARING THE SAME AND USE THEREOF

Номер: US20150065667A1
Автор: Cheng Ruihua, DONG Xuan, He Xuelian, HE Yun, Liu Boping, LIU Weiwei, Liu Zhen, Sun Qiaoqiao, Wang Lisong, Xue Xin
Принадлежит: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

The present invention relates to a supported hybrid vanadium-chromium-based catalyst, characterized in the catalyst is supported on a porous inorganic carrier and a V active site and a inorganic Cr active site are present on the porous inorganic carrier at the same time. The present invention further relates to a process for producing a supported hybrid vanadium-chromium-based catalyst. The invention also provides the preparation method of the catalyst, titanium or fluorine to compounds, vanadium salt and chromium salt according to the proportion, different methods of sequence and load on the inorganic carrier, after high temperature roasting, still can further add organic metal catalyst promoter prereduction activation treatment on it. The catalyst of the present invention can be used for producing ethylene homopolymers and ethylene/α-olefin copolymers. The hybrid vanadium-chromium-based catalyst can have high activity and produce polyethylene polymers having the properties of broad molecular weight distribution (Part of the products are bimodal distribution) and excellent α-olefin copolymerization characteristic. 1. A supported hybrid vanadium-chromium-based catalyst , characterized in that the catalyst is supported on a porous inorganic carrier and wherein an inorganic Cr active site and V active site are present on the porous inorganic carrier at the same time.2. The catalyst according to claim 1 , wherein said catalyst includes inorganic carrier modified with titanium and fluorine.3. The catalyst according to claim 1 , wherein the inorganic carrier is selected from the group consisting of silica claim 1 , alumina claim 1 , titania claim 1 , zirconia claim 1 , magnesia claim 1 , calcium oxide and inorganic clays claim 1 , and combinations thereof.4. The catalyst according to claim 1 , wherein the inorganic carrier has a surface area from 50 to 500 m/g.5. The catalyst according to claim 1 , wherein the inorganic carrier has a pore volume from 0.1 to 5.0 cm/g ...

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Номер записи: 56
22-05-2014 дата публикации

PROPYLENE-BASED PLYMER WITH LOW ASH AND DEVICE WITH SAME

Номер: US20140142241A1
Автор: Chou Chai-Jing
Принадлежит:

The present disclosure provides a process for producing a wash-free propylene-based polymer with low total ash content for use as dielectric film. The propylene-based polymer contains a substituted phenylene aromatic diester and is suitable as a dielectric material for electrical devices. 1. A process comprising:contacting, under polymerization conditions, propylene and optionally one or more comonomers with a catalyst composition comprising a substituted phenylene aromatic diester; andforming a wash-free propylene-based polymer with a total ash content less than 30 ppm.2. The process of comprising forming a wash-free propylene-based polymer with a property selected from the group consisting of from 0 ppm to 10 ppm aluminum claim 1 , from 0 ppm to 10 ppm chlorine claim 1 , from 0 ppm to 10 ppm magnesium claim 1 , from 0 ppm to 10 ppm titanium claim 1 , and combinations thereof.3. The process of comprising forming a propylene-based polymer having less than 6.0 wt % xylene solubles content.4. The process of comprising contacting propylene with a catalyst composition comprising a substituted phenylene aromatic diester that is 3-methyl-5-tert-butyl-1 claim 1 ,2-phenylene dibenzoate; and forming a propylene homopolymer.5. The process of comprising contacting propylene and ethylene with a catalyst composition comprising a substituted phenylene aromatic diester that is 3-methyl-5-tert-butyl-1 claim 1 ,2-phenylene dibenzoate and forming a propylene/ethylene copolymer.6. The process of comprising biaxially orienting the propylene-based polymer; and forming a film having a thickness from 2 microns to 20 microns.7. The process of comprising forming a film having a thickness from 2 microns to 20 microns and a dielectric strength from 620 KV/mm to 720 KV/mm as measured in accordance with DIN IEC 243-2.8. The process of comprising coating an electrical component with the wash-free propylene-based polymer.9. The process of comprising coating claim 1 , with the wash-free propylene- ...

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Номер записи: 57
28-02-2019 дата публикации

SOLID POLYALUMINOXANE COMPOSITION, OLEFIN POLYMERIZATION CATALYST, OLEFIN POLYMER PRODUCTION METHOD AND SOLID POLYALUMINOXANE COMPOSITION PRODUCTION METHOD

Номер: US20190062470A1
Автор: HANADA Shiori, Hara Isao, Harada Yasuyuki, KAWAMURA Kazumori, Matsumoto Akiko, MUROTO Toshihiro, Nakamura Tatsuya, Nishino Fumiaki, SHIBAHARA Atsushi, TSURUGI Kou, YAMADA Wataru
Принадлежит: Mitsui Chemicals, Inc.

An object of the invention is to provide a solid polyaluminoxane composition suitably used as a cocatalyst and a catalyst carrier in combination with an olefin oligomerization or polymerization catalyst, without the use of solid inorganic carriers such as silica. The solid polyaluminoxane composition of the invention includes a polyalkylaluminoxane and a trialkylaluminum, and has a solubility in n-hexane at 25° C. of less than 0.50 mol % as measured by a specific method (i), a solubility in toluene at 25° C. of less than 1.0 mol % as measured by a specific method (ii), and a 13 mol % or more molar fraction of alkyl groups derived from the trialkylaluminum moieties relative to the total number of moles of alkyl groups derived from the polyalkylaluminoxane moieties and the alkyl groups derived from the trialkylaluminum moieties as measured with respect to tetrahydrofuran-dsoluble components by a specific method (iii). 1. A solid polyaluminoxane composition production method comprising: [{'br': None, 'sup': 12', '13', '14, '(R)Al—X(R)(R)\u2003\u2003(5)'}, {'br': None, 'sup': 12', '13, '(R)Al—YR\u2003\u2003(6)'}, {'br': None, 'sup': '12', '(R)Al—Z\u2003\u2003(7)'}], 'a step of precipitating a solid polyaluminoxane composition by reacting a polyaluminoxane composition solution (A) including a polyalkylaluminoxane, a trialkylaluminum and a hydrocarbon solvent, with at least one component represented by General Formulae (5) to (7) below;'}{'sup': 12', '13', '14, 'in General Formulae (5) to (7), Ris a hydrocarbon group having 1 to 20 carbon atoms or is an oxygen atom, X is a Group 15 element, Y a Group 16 element, Z a Group 17 element, and Rand Rare hydrocarbon groups having 1 to 50 carbon atoms, and are the same as or different from each other.'}2. The solid polyaluminoxane composition production method according to claim 1 , wherein the molar fraction of alkyl groups of the trialkylaluminum moieties being 13 mol % or more relative to the total number of moles of alkyl ...

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Номер записи: 58
11-03-2021 дата публикации

POLYPROPYLENE COMPOSITION FOR TAPES

Номер: US20210070970A1
Автор: Moman Akhlaq A., Steenbakkers-Menting Henrica Norberta Alberta Maria, Voets Patrick Elisabeth Luc, VOIGTLANDER Waltraud, Zuideveld Martin Alexander
Принадлежит:

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 ...

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Номер записи: 59
15-03-2018 дата публикации

Catalyst Composition Comprising Fluorided Support and Processes for Use Thereof

Номер: US20180072823A1
Автор: Canich Jo Ann M., Day Gregory S., Holtcamp Matthew W., McCullough Laughlin G., Sanders David F., Titone Michelle E., Ye Xuan
Принадлежит:

This invention relates to a catalyst system including fluorided silica, alkylalumoxane activator and a bridged monocyclopentadienyl group 4 transition metal compound, where the fluorided support has not been calcined at a temperature of 400° C. or more, and is preferably, produced using a wet mix method, particularly an aqueous method. 1. A catalyst system comprising the reaction product of fluorided silica support , alkylalumoxane activator and a bridged monocyclopentadienyl group 4 transition metal compound where the fluorided silica support has not been calcined at a temperature of 400° C. or more.3. The catalyst system of claim 2 , wherein M is Ti.4. The catalyst system of claim 2 , wherein each Cp is a cyclopentadiene claim 2 , indene or fluorene claim 2 , which may be substituted or unsubstituted claim 2 , M is titanium claim 2 , and each X is claim 2 , independently claim 2 , a halide claim 2 , a hydride claim 2 , an alkyl group claim 2 , an alkenyl group or an arylalkyl group.5. The catalyst system of claim 1 , wherein the activator further comprises a non-coordinating anion activator.6. The catalyst system of claim 1 , where the activator comprises methylalumoxane.7. The catalyst system of claim 1 , where G is a heteroatom group represented by the formula: NR* claim 1 , where R* is methyl claim 1 , ethyl claim 1 , propyl claim 1 , butyl claim 1 , pentyl claim 1 , hexyl claim 1 , heptyl claim 1 , octyl claim 1 , nonyl claim 1 , cyclooctyl claim 1 , cyclododecyl claim 1 , decyl claim 1 , undecyl claim 1 , dodecyl claim 1 , adamantyl or an isomer thereof.8. The catalyst system of claim 1 , where the bridged monocyclopentadienyl transition metal compound comprises one or more of:dimethylsilyl (tetramethylcyclopentadienyl)(cyclododecylamido)titanium dimethyl,dimethylsilyl (tetramethylcyclopentadienyl)(cyclododecylamido)titanium dichloride,dimethylsilyl (tetramethylcyclopentadienyl)(t-butylamido)titanium dimethyl,dimethylsilyl (tetramethylcyclopentadienyl)(t- ...

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Номер записи: 60
07-03-2019 дата публикации

Process for preparing an aqueous dispersion of polymeric microspheres

Номер: US20190071540A1
Автор: Edwin Nungesser, Ibrahim ERYAZICI, James C. Bohling, Partha S. Majumdar, Philip R. Harsh
Принадлежит: Rohm and Haas Co

The present invention relates to composition comprising an aqueous dispersion of microspheres and a class of a nonionic polyalkylene oxide of a distyryl or tristyryl phenol or an anionic polyalkylene oxide salt of a distyryl or tristyryl phenol and a process for preparing the composition. The microspheres have an average particle size in the range of from 1 μm to 25 μm, as well as a low coefficient of variation and low gel concentration; the composition is useful in coatings applications, especially where a matte finish is desired.

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Номер записи: 61
14-03-2019 дата публикации

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

Номер: US20190077129A1
Автор: Botros Maged G.
Принадлежит: Equistar Chemicals, LP

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 ...

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Номер записи: 62
26-03-2015 дата публикации

CURING COMPOSITION FOR FLUOROPOLYMERS

Номер: US20150087863A1
Автор: Grootaert Werner M.A., Vogel Dennis E., Vogel Kim M.
Принадлежит:

Provided is a catalyst composition suitable for curing a fluoroelastomer, the catalyst composition comprising an anion of Formula III: 2. The composition of wherein each Rf is CF. This application is a divisional of U.S. application Ser. No. 13/322,001, filed on Nov. 22, 2011, which is a national stage filing under 35 U.S.C. 371 of PCT/US2010/039730, filed on Jun. 24, 2010, which claims priority to U.S. Provisional Application No. 61/220,441, filed on Jun. 25, 2009, the disclosure of which are incorporated by reference in their entirety herein.This invention relates to a catalyst composition as well as curable and cured fluoropolymer compositions, methods of making fluoropolymer compositions, and fluoropolymer articles.Fluoroelastomers are cured or crosslinked and generally are tolerant to high temperatures and harsh chemical environments. They are particularly useful as seals, gaskets, and molded parts in systems that are exposed to elevated temperatures and/or corrosive materials. For sealing applications that require resistance to the most extreme conditions, perfluorinated elastomers are used. Such parts are used in applications such as automotive, chemical processing, semiconductor, aerospace, and petroleum industries, among others.Fluoroelastomers often include a cure-site component to facilitate cure in the presence of a curative or catalyst. One class of useful cure-site components used in perfluoroelastomers includes nitrile group-containing monomers, for which organotin catalysts have been used as curing components. However, such catalysts can leave undesirable extractable metal residues in the cured product and are undesirable for environmental reasons. Ammonia-generating compounds have also been used as a cure system component in fluoroelastomers, but these cure systems lack the desired level of rheology control during processing. Fluoroalkoxy onium containing catalysts were developed to address improved compression set performance. However, these ...

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Номер записи: 63
31-03-2016 дата публикации

Derivatisation of biological molecules

Номер: US20160089445A1
Автор: Andrew Lennard Lewis, Antony Robert Godwin, Stephen James Brocchini, Yiqing Tang
Принадлежит: BIOCOMPATIBLES UK LTD

The present disclosure relates to a new polymerisation process in which ethylenically unsaturated monomers are polymerised by a living radical polymerisation process in the presence of an initiator and a catalyst. Polymers produced by this new process are also thought to be novel and may be used to derivatise biological molecules to improve their efficacy as therapeutic treatments. A preferred polymer is of formula The polymers are particularly suitable for derivatising proteins, such as interferon-α.

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Номер записи: 64
29-03-2018 дата публикации

POLYMERIZATION OF MICHAEL-TYPE MONOMERS

Номер: US20180086858A1
Автор: GIUMAN Marco, Knaus Maximilian, Rieger Bernhard
Принадлежит:

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

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Номер записи: 65
21-03-2019 дата публикации

Molecular Organic Reactive Inks For Conductive Metal Printing Using Photoinitiators

Номер: US20190085195A1
Автор: Adela Goredema, Barkev Keoshkerian, Michelle N. Chrétien, Sarah J. VELLA
Принадлежит: Xerox Corp

An ink composition including a metal salt; an optional solvent; and a stable component that is stable in the ink composition until treated, wherein, upon treatment, the component forms a compound that reduces the metal salt to form metal. An ink composition including a metal salt; an initiator; and an optional solvent; wherein, upon treatment, the initiator forms a compound which reduces the metal salt to metal. A process including combining a metal salt, an initiator, and an optional solvent, to form an ink; wherein, upon treatment, the initiator forms a compound which reduces the metal salt to metal. A process including providing an ink composition comprising a metal salt, an initiator, and an optional solvent; depositing the ink composition onto a substrate to form deposited features; and treating the deposited features on the substrate wherein the initiator forms a compound which reduces the metal salt to metal to form conductive features on the substrate.

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Номер записи: 66
30-03-2017 дата публикации

Heterogeneous Ziegler-Natta Catalysts with Fluorided Silica-Coated Alumina

Номер: US20170088646A1
Автор: Errun Ding, Jeffrey F. Greco, QING Yang, Youlu Yu
Принадлежит: Chevron Phillips Chemical Co LP

Catalyst systems containing a Ziegler-Natta catalyst component are disclosed. Such catalyst systems can contain a co-catalyst and a supported catalyst containing a fluorided silica-coated alumina, a magnesium compound, and vanadium and/or tetravalent titanium.

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Номер записи: 67
05-05-2022 дата публикации

Aqueous Titanation of Cr/Silica Catalysts by the Use of Acetylacetonate and Another Ligand

Номер: US20220135708A1
Автор: CLEAR Kathy S., ELLIS William C., GAGAN Deloris R., MCDANIEL Max P.
Принадлежит:

A method comprising contacting a silica support with a titanium-containing solution to form a titanated silica support, wherein the titanium-containing solution comprises a solvent; a ligand comprising a glycol, a carboxylate, a peroxide, or a combination thereof, and a titanium compound having the formula Ti(acac)(OR), wherein “acac” is acetylacetonate and wherein each R independently is ethyl, isopropyl, n-propyl, isobutyl, or n-butyl.

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Номер записи: 68
19-03-2020 дата публикации

Modified Supported Chromium Catalysts and Ethylene-Based Polymers Produced Therefrom

Номер: US20200086307A1
Автор: Carlos A. Cruz, Jared L. BARR, Masud M. Monwar, Max P. McDaniel
Принадлежит: Chevron Phillips Chemical Co LP

Supported chromium catalysts with an average valence less than +6 and having a hydrocarbon-containing or halogenated hydrocarbon-containing ligand attached to at least one bonding site on the chromium are disclosed, as well as ethylene-based polymers with terminal alkane, aromatic, or halogenated hydrocarbon chain ends. Another ethylene polymer characterized by at least 2 wt. % of the polymer having a molecular weight greater than 1,000,000 g/mol and at least 1.5 wt. % of the polymer having a molecular weight less than 1000 g/mol is provided, as well as an ethylene homopolymer with at least 3.5 methyl short chain branches and less than 0.6 butyl short chain branches per 1000 total carbon atoms.

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Номер записи: 69
07-04-2016 дата публикации

DIRECT ANTI-MARKOVNIKOV ADDITION OF ACIDS TO ALKENES

Номер: US20160096791A1
Автор: Hamilton David S., Nicewicz David A.
Принадлежит:

A method of making an anti-Markovnikov addition product, comprises reacting an acid with an alkene or alkyne in a dual catalyst reaction system to the exclusion of oxygen to produce said anti-Markovnikov addition product; the dual catalyst reaction system comprising a single electron oxidation catalyst in combination with a hydrogen atom donor catalyst. Dual catalyst composition useful for carrying out such methods are also described. 1. A method of making an anti-Markovnikov addition product , comprising:reacting an acid with an alkene or alkyne in a dual catalyst reaction system to the exclusion of oxygen to produce said anti-Markovnikov addition product;said dual catalyst reaction system comprising a single electron oxidation catalyst in combination with a hydrogen atom donor catalyst;wherein said hydrogen atom donor catalyst is a compound of the Formula A-SH, where A is alkyl, aryl, or an electron withdrawing group.2. The method of claim 1 , wherein said anti-Markovnikov addition product is produced regio selectively in a ratio of at least 5:1 of anti-Markovnikov addition product as compared to the corresponding Markovnikov addition product.3. The method of claim 1 , wherein A is selected from the group consisting of alkyl claim 1 , aryl claim 1 , carboxyl claim 1 , and carbonyl groups.4. The method of claim 1 , wherein said single electron oxidation catalyst is a photocatalyst.5. The method of claim 4 , wherein said photocatalyst comprises a carbocyclic or heterocyclic aromatic compound containing ring nitrogen heteroatoms.6. The method of claim 5 , wherein said photocatalyst comprises an anthracene claim 5 , aza-anthracene or polyaza-anthracene nucleus which is unsubstituted claim 5 , substituted or polysubstituted at any position with halogen claim 5 , and/or with one or more lower alkyl or cycloalkyl radicals claim 5 , and/or with other phenyl substituents.7. The method of claim 4 , wherein said photocatalyst has a reduction potential of about −1.0 V to +0.1 ...

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Номер записи: 70
28-03-2019 дата публикации

INORGANIC POROUS FRAMEWORK-LAYERED DOUBLE HYDROXIDE CORE-SHELL MATERIALS AS CATALYST SUPPORTS IN ETHYLENE POLYMERISATION

Номер: US20190091670A1
Автор: "OHare Dermot", Buffet Jean-Charles, CHEN Chunping
Принадлежит:

A catalyst system comprises an activated solid support material and having, on its surface, one or more catalytic transition metal complexes. 1. A catalyst system comprising an activated solid support material and having , on its surface , one or more catalytic transition metal complex , wherein the solid support material comprises a core@layered double hydroxide shell material having the formula I{'br': None, 'sub': p', '(1−x)', 'x', '2', 'a/n', '2', 'q, 'sup': z+', 'y+', 'a+', 'n−, 'T@ {[MM′(OH)](X).bHO.c(AMO-solvent)}\u2003\u2003(I)'}wherein T is a solid, porous, inorganic oxide-containing framework material,{'sup': z+', 'y+', 'z+, 'M and M are independently selected charged metal cations; M is a metal cation of charge z or a mixture of two or more metal cations each independently having the charge z;'}{'sup': 'y+', 'M′ is a metal cation of charge y or a mixture of two or more metal cations each independently having the charge y;'}z=1 or 2;y=3 or 4;00;q>0;{'sup': 'n−', 'X is an anion; with n>0;'}a=z(1−x)+xy−2; andAMO-solvent is an organic solvent which is completely miscible with water.2. The catalyst system according to claim 1 , wherein M′ is Al claim 1 , and/or M is Li claim 1 , Mg or Ca and/or X is selected from CO claim 1 , OH claim 1 , F claim 1 , Cl claim 1 , Br claim 1 , I claim 1 , SO claim 1 , NO and PO claim 1 , preferably CO claim 1 , Cl and NO claim 1 , or mixtures thereof.3. The catalyst system according to claim 1 , wherein the AMO-solvent is selected from acetone claim 1 , methanol claim 1 , ethanol or isopropanol claim 1 , preferably acetone or ethanol.4. The catalyst system according to claim 1 , wherein T is a molecular sieve material selected from silicate claim 1 , aluminium silicate claim 1 , vanadium silicate claim 1 , iron silicate claim 1 , silicon-aluminium phosphate (SAPO) and aluminium phosphate (AIPO).5. The catalyst system according to claim 1 , wherein T is an aluminium silicate having a silicon ...

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Номер записи: 71
05-04-2018 дата публикации

METHOD OF PREPARING SUPPORTED METALLOCENE CATALYST

Номер: US20180094084A1
Автор: CHO Kyung Jin, CHOI Yi Young, KIM Woo Ri, KWON Hyuck Ju, Lee Ki Soo, SONG Eun Kyoung, YOU Young Suk
Принадлежит:

A method of preparing a supported metallocene catalyst capable of more effectively preparing a polyolefin which may be preferably used for blow molding, etc., because its molecular weight distribution is such that polymer elasticity is increased to improve swell, is provided. 2. The method of preparing the supported metallocene catalyst of claim 1 , wherein the supporting is performed by mixing the support claim 1 , the metallocene catalyst claim 1 , and the molecular weight modifier composition claim 1 , and stirring a resulting mixture at a temperature of 30° C. to 100° C. for 1 hour to 12 hours.3. The method of preparing the supported metallocene catalyst of claim 1 , wherein the molecular weight modifier composition is supported in an amount of about 1 mol % to 85 mol % claim 1 , based on the total weight of the metallocene compound.4. The method of preparing the supported metallocene catalyst of claim 1 , wherein Rand Rin Chemical Formula 1 are each independently selected from the group consisting of hydrogen claim 1 , methyl claim 1 , ethyl claim 1 , butyl claim 1 , and t-butoxy hexyl.5. The method of preparing the supported metallocene catalyst of claim 1 , wherein R claim 1 , R claim 1 , and Rin Chemical Formula 2 are each independently an isobutyl group.6. The method of preparing the supported metallocene catalyst of claim 1 , wherein Min Chemical Formula 1 is selected from the group consisting of titanium claim 1 , zirconium claim 1 , and hafnium.7. (canceled)9. The method of preparing the supported metallocene catalyst of claim 1 , wherein the support is selected from the group consisting of silica claim 1 , silica-alumina claim 1 , and silica-magnesia.10. The method of preparing the supported metallocene catalyst of claim 1 , wherein the support is one on which a first aluminum-containing cocatalyst of the following Chemical Formula 12 is supported:{'br': None, 'sup': '18', 'sub': 'n', '—[—Al(R)—O—]—\u2003\u2003Chemical Formula 12'}in Chemical Formula 12 ...

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Номер записи: 72
12-05-2022 дата публикации

Hybrid supported metallocene catalyst and method of preparing polypropylene using the same

Номер: US20220144983A1
Автор: Byung Seok Kim, Daesik Hong, Insun LEE, Sangeun AN, SANGHOON Lee, Seok Hwan Kim
Принадлежит: LG Chem Ltd

Provided are a hybrid supported metallocene catalyst comprising one or more first metallocene compounds selected from compounds represented by the following Chemical Formula 1; one or more second metallocene compounds selected from compounds represented by the following Chemical Formula 2, and showing high activity in propylene polymerization and being usefully applied to the preparation of a polypropylene having high melt strength by introducing long chain branches into the polypropylene molecule, and a method of preparing a polypropylene using the same wherein all the variables are described herein.

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Номер записи: 73
28-03-2019 дата публикации

Method for producing copolymer, and method for producing latex

Номер: US20190092890A1
Автор: Fumiaki Bando
Принадлежит: Zeon Corp

The invention is a method for producing a copolymer having a repeating unit derived from a conjugated diene-based monomer and using a radical polymerization initiator and a radical generator, wherein the radical polymerization initiator is a compound represented by specific formula (1), and a method for producing a latex in which a copolymer particle is dispersed in water, wherein the copolymer having the repeating unit derived from the conjugated diene-based monomer is synthesized by the method for producing the copolymer. Aspects of the invention provide a method for producing a copolymer in which by-products by Diels-Alder reaction are not readily generated in a copolymerization reaction between a conjugated diene-based monomer and a radically polymerizable monomer other than conjugated diene-based monomers, and a method for producing a latex using this method.

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Номер записи: 74
26-06-2014 дата публикации

Mono- and multi-layer films and articles made therefrom

Номер: US20140178614A1
Автор: Mehmet Demirors, Nilesh R. Savargaonkar, Rajen M. Patel, Sylvie Desjardins, Teresa P. Karjala
Принадлежит: Dow Global Technologies LLC

Mono- and multi-layer films comprising a polyethylene composition which comprises the reaction product of ethylene and optionally one or more alpha olefin comonomers in the presence of a catalyst composition comprising a multi-metallic procatalyst via a solution polymerization process in at least one reactor; wherein said polyethylene composition is characterized by one or more of the following properties: a melt index, I 2 , measured according to ASTM D 1238 (2.16 kg@190° C.), from 0.1 to 5 g/10 min; density, measured according to ASTM D-792, from 0.910 to 0.935 g/cc; melt flow ratio, I 10 /I 2 , wherein I 10 is measured according to ASTM D1238 (10 kg@190° C.), from 6 to 7.4; and molecular weight distribution, (M w /M n ) from 2.5 to 3.5 are provided. Also provided are articles made from the mono- and/or multi-layer films.

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Номер записи: 75
26-06-2014 дата публикации

Synthesis of 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers

Номер: US20140179887A1
Автор: Andrew J. Poss, Changqing Lu, Cheryl Cantlon, David Nalewajek, Rajiv R. Singh
Принадлежит: Honeywell International Inc

In accordance with the present invention, aqueous emulsion polymerization processes of synthesizing 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers having 2,3,3,3-tetrafluoropropene as the major monomer unit are provided.

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Номер записи: 76
16-04-2015 дата публикации

MIXED SALT SUSPENSION POLYMERIZATION PROCESS AND RESINS AND CATALYSTS PRODUCED THEREOF

Номер: US20150105487A1
Автор: Jr. Garth R., Masudo Takashi, Olsen Robert J., Parker, Trejo Jose A.
Принадлежит: Rohm and Haas Company

This invention relates to no-salt and mixed salt suspension polymerization processes for water-soluble monomers and resins and relates to catalysts produced from the same. 2. The process of wherein the water-soluble monomer is vinyl pyridine.3. The process of wherein the mixed salt comprises sodium nitrite and at least one salt selected from the group consisting of sodium bicarbonate claim 1 , sodium sulphate claim 1 , sodium phosphate claim 1 , potassium bicarbonate claim 1 , and potassium sulphate.4. The process of wherein the aqueous phase further comprises water and a suspending agent.5. The process of wherein the suspending agent is poly (diallyl dimethyl ammonium chloride) or gelatin.6. A resin formed by the process of .7. The resin of wherein the resin is gellular.8. The resin of wherein the resin is macroporous.9. The resin of wherein the resin of has surface area from 3 to 80 m2/g claim 8 , a pore volume from 0.03 to 0.30 cm3/g claim 8 , a micropore volume of 0.0005 to 0.0080 cm3/g claim 8 , and a pore diameter from 100 to 400 Angstroms.10. The resin of wherein the resin is clean.11. A process for preparing a resin by suspension polymerization comprising: a) a monomer phase;', 'b) from 0.1 to 5 weight percent of a polymerization initiator; and', 'c) at least one solvent or porogen, 'i) forming an aqueous suspension, wherein the aqueous suspension comprises an aqueous phase and an organic phase, wherein the organic phase comprises'}wherein the monomer phase comprises at least 50 weight percent of one water-soluble monomer and from 0.1 to 50 weight percent of a crosslinking monomer;ii) establishing polymerization conditions in the suspension,iii) allowing the monomers to polymerize until they have formed water-insoluble particles, andiv) separating the particles from the aqueous phase;further wherein the aqueous suspension does not comprise salt. This invention relates to a no salt suspension or a mixed salt suspension polymerization processes for water- ...

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Номер записи: 77
08-04-2021 дата публикации

ELASTOMER COMPOSITION, ELASTOMER, METHOD FOR PREPARING ELASTOMER, AND ADHESIVE TAPE

Номер: US20210102053A1
Автор: Guan Zheng, Hou Jingqiang, Jin Zhou, LI Wenyan, Wang Yaming, Zhou Wei
Принадлежит:

The present disclosure provides an elastomer composition, comprising, based on the total weight 100 wt. % of the elastomer composition: 1-50 wt. % of a modified ethylene propylene copolymer; 5-60 wt. % of a first silicone resin, the first silicone resin comprising at least one selected from the group consisting of the following: a hydroxyl-terminated silicone resin and an alkoxy-terminated silicone resin; 0.1-15 wt. % of a first crosslinking agent; 0.1-15 wt. % of a catalyst; and 10-85 wt. % of a filler. The elastomer composition provided by the present disclosure at least can be co-crosslinked in low temperature (approximately −20° C. to 60° C.) conditions. An elastomer prepared from the elastomer composition provided by the present disclosure has good mechanical properties and electrical insulation properties. 1. An elastomer composition , comprising , based on the total weight 100 wt. % of the elastomer composition:1-50 wt. % of a modified ethylene propylene copolymer;5-60 wt. % of a first silicone resin, the first silicone resin comprising at least one selected from the group consisting of the following:a hydroxyl-terminated silicone resin and an alkoxy-terminated silicone resin;0.1-15 wt. % of a first crosslinking agent;0.1-15 wt. % of a catalyst; and10-85 wt. % of a filler.3. The elastomer composition according to claim 1 , wherein the modified ethylene propylene copolymer is a polymer obtained by means of graft modification of an ethylene propylene copolymer with a modifier; the ethylene propylene copolymer comprising at least one selected from the group consisting of the following: an ethylene propylene binary random copolymer claim 1 , an ethylene propylene 1 claim 1 ,1-ethylidene norbornene ternary random copolymer claim 1 , an ethylene propylene dicyclopentadiene ternary random copolymer claim 1 , and an ethylene propylene 1 claim 1 ,4-hexadiene ternary random copolymer; the modifier comprising at least one selected from the group consisting of the ...

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Номер записи: 78
02-06-2022 дата публикации

Hybrid Catalytic Composition, Catalyst Comprising the Same, and Processes for Preparing the Same

Номер: US20220169757A1
Автор: Hyunseung LEE, Ranwha PARK, Seongyeon PARK, Wook Jeong
Принадлежит: Hanwha Solutions Corp

The present invention relates to a hybrid catalytic composition comprising different transition metal compounds, to a catalyst for olefin polymerization comprising the same, and to processes for preparing the same. Specifically, the present invention relates to a hybrid catalytic composition comprising different transition metal compounds capable of producing various polyolefins having excellent processability and mechanical properties, to a catalyst for olefin polymerization comprising the same, and processes for preparing the hybrid catalytic composition and the catalyst by adjusting the ratio of the transition metal compounds.

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Номер записи: 79
29-04-2021 дата публикации

Method for producing vinyl ether polymer containing hydrocarbon group by radical polymerization

Номер: US20210122847A1
Автор: Masahiro Endo, Shinji Sugihara
Принадлежит: Maruzen Petrochemical Co Ltd

[Object] To provide a method for producing a vinyl ether polymer containing a hydrocarbon group in a stable and efficient manner, wherein decomposition of the monomer and generation of polyacetal are suppressed. [Means for solving problem] The method for producing a vinyl ether polymer containing a hydrocarbon group according to the present invention comprises the step of polymerizing vinyl ether represented by the following formula (1): wherein R 1 represents an aliphatic hydrocarbon group having 1 to 10 carbons or an alicyclic hydrocarbon group having 3 to 10 carbons, in the presence of water as a polymerization solvent and an organic azo-based compound as a radical polymerization initiator, under pH of 6 or more.

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Номер записи: 80
30-04-2015 дата публикации

Novel Aluminum Alkyl With C5 Cyclic and Pendent Olefin Polymerization Catalyst

Номер: US20150119540A1
Автор: Day Gregory S., Holtcamp Matthew W.
Принадлежит:

This invention relates to organoaluminum compounds, to organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems and to polymerization processes utilizing the same. In particular, this invention relates to catalyst systems comprising an ion-exchange layered silicate, an organoaluminum compound, and a metallocene. 1. A composition comprising the reaction product of AlHor a trialkyl aluminum and a cyclic vinyl terminated olefin.3. The composition of claim 2 , wherein each R alkyl group is selected from the group consisting of ethyl claim 2 , propyl claim 2 , butyl claim 2 , isobutyl claim 2 , or isomers thereof.4. The composition of wherein x is 1 claim 2 , Ris propyl or pentyl claim 2 , Ris a hydrogen atom and n is 1 or 2.6. The composition of claim 5 , wherein z is 3 and q is 0.7. The composition of claim 5 , wherein z is 2 and q is 1.8. The composition of claim 5 , wherein z is 1 and q is 2.10. The composition of claim 9 , wherein x is 1 claim 9 , Ris propyl or pentyl claim 9 , Ris a hydrogen atom and n is 1 or 2.11. The composition of claim 9 , wherein z is 3 and q is 0.12. The composition of claim 9 , wherein z is 2 and q is 1.13. The composition of claim 9 , wherein z is 1 and q is 2.1413. A catalyst system comprising a metallocene catalyst and the composition according to any of through or .1513. A supported activator comprising an ion-exchange layered silicate and a composition of any of through .16. The supported activator of claim 15 , wherein the ion-exchange layered silicate is selected from the group consisting of montmorillonite claim 15 , nontronite claim 15 , beidellite claim 15 , volkonskoite claim 15 , laponite claim 15 , hectorite claim 15 , saponite claim 15 , sauconite claim 15 , stevensite claim 15 , vermiculite claim 15 , halloysite claim 15 , aluminate oxides claim 15 , bentonite claim 15 , kaolinite claim 15 , dickite claim 15 , smectic clays claim 15 , mica claim 15 , ...

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Номер записи: 81
09-06-2022 дата публикации

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

Номер: US20220177611A1
Автор: Chen Linfeng, Gao Kuanqiang, Leung Tak W., Tao Tao
Принадлежит: W.R. GRACE & CO.-CONN.

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

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Номер записи: 82
27-04-2017 дата публикации

Method for Preparing Polybutene by Using Catalyst Containing N-Propanol

Номер: US20170114164A1
Автор: Hyung Jae SEO, Min Sup Park, Myeong Seok KIM, Se Hyun Lee
Принадлежит: Daelim Industrial Co Ltd

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

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Номер записи: 83
17-07-2014 дата публикации

Methods for Production of Hydrocarbons and Oxygen-Containing Hyrdrocarbons

Номер: US20140200318A1
Автор: Luo Jun, Shea Kenneth J.
Принадлежит:

Environmentally friendly, energy efficient methods for making hydrocarbons, including oxygen containing hydrocarbons, linear or branched polymers, oligomers, waxes, small hydrocarbon molecules, fuels, coatings and starting materials/reactants to be used for making other hydrocarbons. A C1 carbon source, such as coal, natural gas, petroleum or biomass (including non-food biomass), is converted to the desired hydrocarbon. The reaction can be run in water, at room temperature and under atmospheric pressure. In some embodiments, the method comprises combining a) a C1 carbon source; b) water; c) an alkaline agent; and d) an alkyl Lewis acid in an amount effective to initiate or catalyze reaction of the components to form the hydrocarbon. 1. A method for synthesizing a hydrocarbon or oxygen-containing hydrocarbon , said method comprising the step of combining:a C1 carbon source;wateran alkaline agent; andan alkyl Lewis acid;wherein the alkyl Lewis acid comprises an organic solvent such as dichloromethane in an amount effective to initiate or catalyze a reaction that forms the hydrocarbon or oxygen-containing hydrocarbon.2. A method according to wherein the C1 carbon source comprises a halide.3. A method according to wherein the halide comprises a methyl halide.4. A method according to wherein the C1 carbon source is derived from biomass.5. A method according to wherein a microbial process is used to derive the C1 carbon source from biomass.6. A method according to wherein the C1 carbon source is derived from coal.7. A method according to wherein the C1 carbon source is derived from petroleum or natural gas.8. A method according to wherein the C1 carbon source is combined with a carrier.9. A method according to wherein the carrier comprises an onium salt.10. A method according to wherein the carrier comprises a sulfoxonium salt claim 8 , sulfonium salt claim 8 , phosphonium salt or other onium salt.11. A method according to wherein the carrier comprises dimethyl sulfoxide ...

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Номер записи: 84
07-05-2015 дата публикации

Polymerization using latent initiators

Номер: US20150126696A1
Автор: Friedrich Georg Schmidt, Michael Buchmeiser, Stefan Naumann
Принадлежит: Evonik Industries AG

The present invention relates to a novel, rapid initiation mechanism for polymerising (meth)acrylates using latent initiators based on N-heterocyclic carbene compounds which can be thermally activated, such as, in particular, N-heterocyclic carbene-CO 2 compounds, carbene-CS 2 compounds or carbene-metal compounds (NHC). Using the new initiation mechanism, molecular weights of 10 000 to over 500 000 g/mol and a narrow polydispersity can be achieved for polymerisation of MMA. The polymerisations can be carried out both without solvent and in solution.

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Номер записи: 85
25-08-2022 дата публикации

Methods for chromium catalyst activation using oxygen-enriched fluidization gas

Номер: US20220267485A1
Автор: James E. Hein, Ralph W Romig, Troy BRETZ, Zhihui Gu
Принадлежит: Chevron Phillips Chemical Co LP

Processes for producing an activated chromium catalyst are disclosed, and these processes comprise contacting a supported chromium catalyst with a gas stream containing from 25-60 vol % oxygen at a peak activation temperature of 550-900° C. to produce the activated chromium catalyst. The linear velocity of the gas stream is 0.18-0.4 ft/sec, and the oxygen linear velocity of the gas stream is 0.05-0.15 ft/sec. The resultant activated chromium catalyst and an optional co-catalyst can be contacted with an olefin monomer and an optional olefin comonomer in a polymerization reactor system under polymerization conditions to produce an olefin polymer.

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Номер записи: 86
25-04-2019 дата публикации

PROCESS FOR PRODUCING LLDPE RESINS

Номер: US20190119419A1
Автор: AHO Jani, Albunia Alexandra Romina, ECKMAYR Renate, JAMIESON John, Kela Jarmo, SUMERIN Victor, Tupe Ravindra, VAHTERI Markku
Принадлежит:

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 ...

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Номер записи: 87
25-04-2019 дата публикации

METHOD FOR PRODUCING AMINO METHYLATED BEAD POLYMERIZATES

Номер: US20190119480A1
Автор: BALJAK Sladjana, Klipper Reinhold, Koop Bernd, Martin Georg, REZKALLAH Areski, Vanhoorne Pierre
Принадлежит: LANXESS DEUTSCHLAND GMBH

The invention relates to a process for preparing aminomethylated bead polymers using condensed formaldehydes and carbonyl halides. 2. The process according to claim 1 , wherein the at least one monovinylaromatic compound is Selected from the group consisting of styrene claim 1 , α-methylstyrene claim 1 , vinyltoluene claim 1 , ethylstyrene claim 1 , t-butylstyrene claim 1 , chlorostyrene claim 1 , bromostyrene claim 1 , chloromethystyrene claim 1 , vinylnaphthalene claim 1 , and mixtures of these compounds.3. The process according to claim 1 , wherein the at least one polyvinylaromatic compound is selected from the group consisting of divinylbenzene claim 1 , divinyltoluene claim 1 , trivinylbenzene claim 1 , and mixtures of these compounds.4. The process according to claim 1 , wherein the at least one monovinylaromatic compound is styrene claim 1 , and the at least one polyvinylaromatic compound is divinylbenzene.5. The process according to claim 1 , wherein R═H.6. The process according to claim 1 , wherein n=8 to 30.7. The process according to claim 1 , wherein the at least one carbonyl halide comprises at least one of: aliphatic and saturated monocarbonyl chlorides that are liquid at temperatures between 10° C. and 60° C.; and aliphatic and saturated monocarbonyl bromides that are liquid at temperatures between 10° C. and 60° C.8. The process according to claim 1 , wherein the bead polymer is contacted with the at least one compound of the formula (I) or salts thereof and the at least one compound of the formula (II) or the cyclic condensates thereof in the presence of a mixture of acetyl chloride and acetic acid.9. The process according to claim 8 , the acetyl chloride and acetic acid are present in the mixture at a ratio of acetyl chloride to acetic acid of 1:1 to 1:10.10. The process according to claim 1 , wherein the Friedel-Crafts catalyst is used in an amount of 1 to 5 mol per mole of the compound of the formula (I).11. The process according to claim 1 , ...

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Номер записи: 88
16-04-2020 дата публикации

Water-absorbent resin, soil water-retaining material, and agricultural/horticultural material

Номер: US20200115476A1
Автор: Mikito CHIBA, Yuichi Onoda
Принадлежит: Sumitomo Seika Chemicals Co Ltd

There is provided a water-absorbent resin that exhibits both high water absorbency and high water-discharge capacity. The water-absorbent resin of the present invention is a water-absorbent resin comprising a polymer of a water-soluble ethylenically unsaturated monomer, wherein when a cross-sectional image of the water-absorbent resin is observed using X-ray computed tomography, the water-absorbent resin has a ratio of the area of cavity portions (cavity area ratio) in the cross-sectional image of 5% or more, as calculated according to Equation (I): cavity area ratio [%]={total cross-sectional area of cavity portions ( B ) in the water-absorbent resin/(total cross-sectional area of resin portions ( A ) in the water-absorbent resin+total cross-sectional area of cavity portions ( B ) in the water-absorbent resin)}×100  (I).

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Номер записи: 89
25-08-2022 дата публикации

Surface treatment liquid and hydrophilizing treatment method

Номер: US20220269173A1
Автор: Takahiro Senzaki
Принадлежит: Tokyo Ohka Kogyo Co Ltd

To provide a hydrophilizing surface treatment liquid suppressing the deterioration over time of the effect of a surface treatment even when a surface-treated article is exposed to a variety of chemicals and a hydrophilizing treatment method in which the hydrophilizing surface treatment liquid is used. In a hydrophilizing surface treatment liquid including a polymerizable compound having an ethylenic unsaturated double bond (A), a polymerization initiator (B) and a solvent (S), a hydrophilic polymerizable compound (A1), an adhesive polymerizable compound (A2), an acidic polymerizable compound (A3a) and/or a basic polymerizable compound (A3b) are used as the polymerizable compound (A), and an aqueous solution including the polymerizable compound (A) at a concentration of 10% by mass has a pH at 23° C. of 6.5 or more and 7.5 or less.

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Номер записи: 90
27-05-2021 дата публикации

Systems and Methods for Producing a Supported Catalyst

Номер: US20210155723A1
Автор: Bennett Handel D., Berg Brian R., Broussard Chelsey M., Griffin Robert L., Kuo Chi-I, Savatsky Bruce J.
Принадлежит:

A method of producing a supported catalyst includes introducing a dissolved catalyst solution into a catalyst mix vessel, and after introducing the dissolved catalyst solution into the catalyst mix vessel, introducing a porous support material into the catalyst mix vessel. The catalyst mix vessel is then operated to contact the dissolved catalyst solution on the porous support material and thereby generate the supported catalyst, and the supported catalyst is discharged from the catalyst mix vessel. 1. A method of producing a supported catalyst , comprising:introducing a first amount of a porous support material into a catalyst mix vessel;after introducing the first amount of the porous support material into the catalyst mix vessel, introducing a first amount of a dissolved catalyst solution into the catalyst mix vessel, the dissolved catalyst solution comprising a solvent and one or more catalyst compounds dissolved in the solvent;operating the catalyst mix vessel to contact the first amount of the dissolved catalyst solution with the first amount of the porous support material;after operating the catalyst mix vessel to contact the first amount of the dissolved catalyst solution on the first amount of the porous support material, introducing a second amount of the dissolved catalyst solution into the catalyst mix vessel;after introducing the second amount of the dissolved catalyst solution into the catalyst mix vessel, introducing a second amount of the porous support material into the catalyst mix vessel;operating the catalyst mix vessel to contact the second amount of the dissolved catalyst solution on the second amount of the porous support material and thereby generate the supported catalyst, the supported catalyst comprising active catalyst adhered to the porous support material; anddischarging the supported catalyst from the catalyst mix vessel.2. The method of claim 1 , wherein the dissolved catalyst solution comprises a metallocene.3. The method of claim 2 ...

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Номер записи: 91
01-09-2022 дата публикации

Water-borne polymers polymerized by radical polymerization with azo initiators, a process for making such and the applications thereof

Номер: US20220275131A1
Автор: En Lin ZHANG, Zhen Wei, Zhong Zeng
Принадлежит: BASF SE

The present invention is related to water-borne polymers polymerized by radical polymerization with azo initiators, a process for making the polymers and the application thereof. The polymers polymerized with azo initiators show superior water-whitening resistance and scrub resistance, which are desired properties for coatings applications.

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Номер записи: 92
23-04-2020 дата публикации

Catalyst Composition For Preparing Conjugated Diene-based Polymer And Conjugated Diene-based Polymer Preparing Using The Same

Номер: US20200123289A1
Автор: Ahn Jeong Heon, Bae Hyo Jin, Kang Suk Youn, Kim Ji Eun, Oh Kyoung Hwan, Park Sung Ho
Принадлежит: LG CHEM, LTD.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. 2. The conjugated diene-based polymer of claim 1 , wherein the conjugated diene-based polymer has a mooney viscosity of 10 MU to 90 MU at 100° C. and a polydispersity of 3.4 or less.3. A rubber composition comprising the conjugated diene-based polymer according to .4. A tire part manufactured by using the rubber composition according to . This application is a divisional of U.S. application Ser. No. 15/554,907, filed Aug. 31, 2017 which is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/KR2016/006802, filed on Jun. 24, 2016, which claims priority from Korean Patent Application Nos. 2015-0089906, filed on Jun. 24, 2015, and 2015-0184238, filed on Dec. 22, 2015, the entire contents of which are incorporated herein by reference.The present invention relates to a catalyst composition for preparing a conjugated diene-based polymer and a conjugated diene-based polymer prepared using the same.According to the gradual increase in demand for a rubber composition in various manufacturing fields for tires, impact resistant polystyrene, the sole of shoes, golf balls, etc., the value of conjugated diene-based polymer which is a synthetic rubber, specifically, a butadiene-based polymer is increasing as an alternative material to natural rubber of which the produced amount is insufficient.Meanwhile, in a conjugated diene-based polymer, linearity and the degree of branching greatly affect the physical properties of the polymer. In particular, with a decrease in linearity or an increase in the ...

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Номер записи: 93
03-06-2021 дата публикации

ACTIVATOR-NUCLEATOR FORMULATIONS

Номер: US20210163633A1
Автор: BORSE Nitin, Chandak Swapnil B., Liu Zhenshuo Bobby, Munro Ian M.
Принадлежит:

An activator-nucleator formulation comprising an activating effective amount of (A) an alkylaluminum(chloride) compound (compound (A)); and a nucleating effective amount of a compound (B) selected from at least one of compounds (B1) to (B3): (B1) calcium (1R,2S)-cis-cyclohexane-1,2-dicarboxylate (1:1); (B2) calcium stearate (1:2), and (B3) zinc stearate (1:2); wherein the compound (A) is effective for activating a Ziegler-Naha procatalyst to give a Ziegler-Natta catalyst; and wherein the compound (B) is effective for lowering isothermal crystallization peak time period of a semicrystalline polyethylene polymer made in a polymerization process by the Ziegler-Natta catalyst. A method of polymerizing ethylene, and optionally 0, 1, or more alpha-olefin comonomers, in a polymerization process conducted in a polymerization reactor, the method comprising contacting ethylene, and optionally 0, 1, or more alpha-olefin comonomers, with the Ziegler-Naha catalyst system to give a semicrystalline polyethylene polymer. The semicrystalline polyethylene polymer made by the method of polymerizing. 1. An activator-nucleator formulation comprising an activating effective amount of (A) an alkylaluminum(chloride) compound of formula (I): Al((C-C)alkyl)(chloro)(I) , wherein subscript m is an integer from 1 to 3 , subscript n is an integer from 2 to 0 , the sum of subscripts m+n=3 , and each chloro is a chlorine atom (compound (A)); and a nucleating effective amount of a compound (B) selected from at least one of compounds (B1) to (B3): (B1) calcium (1R ,2S)-cis-cyclohexane-1 ,2-dicarboxylate (1:1); (B2) calcium stearate (1:2) , and (B3) zinc stearate (1:2).2. The activator-nucleator formulation of claim 1 , wherein the compound (A) is the alkylaluminum(chloride) compound of formula (I) characterized by any one of limitations (i) to (iii): (i) subscript m is 3 and subscript n is 0; (ii) each (C-C)alkyl is ethyl claim 1 , butyl claim 1 , or hexyl; and (iii) each (C-C)alkyl is ethyl.3. The ...

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Номер записи: 94
30-04-2020 дата публикации

High Impact Polypropylene Impact Copolymer

Номер: US20200131353A1
Автор: Bauch Christopher G., Edwards Todd S.
Принадлежит:

Disclosed is a polypropylene with an MFR of at least 20 g/10 min comprising a homopolypropylene and within a range from 2 wt % to 20 wt % of a propylene-α-olefin copolymer by weight of the polypropylene, where the homopolypropylene has a MFR within a range from 30 g/10 min to 200 g/10 min, where the propylene-α-olefin copolymer comprises within a range from 30 wt % to 50 wt % α-olefin derived units by weight of the propylene-α-olefin copolymer, and has an IV within a range from 4 to 9 dL/g. The polypropylene may be obtained by combining a Ziegler-Natta catalyst having two transition metals with propylene in reactors in series to produce the homopolypropylene followed by a gas phase reactor to produce a propylene-α-olefin copolymer blended with the homopolypropylene. 1. A polypropylene having a melt flow rate of at least 20 g/10 min comprising a homopolypropylene and within a range from 2 wt % to 40 wt % of a propylene-α-olefin copolymer based on the weight of the polypropylene; whereinthe homopolypropylene has a MFR within a range from 30 g/10 min to 200 g/10 min; andthe propylene-α-olefin copolymer comprises 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 9 dL/g.2. The polypropylene of claim 1 , wherein the homopolypropylene has a flexural modulus of at least 1800 MPa.3. The polypropylene of claim 1 , wherein the xylene-insoluble portion of the propylene-α-olefin copolymer has an ethylene content of 3.0 wt % or less relative to the total amount of the propylene-α-olefin copolymer.4. The polypropylene of claim 1 , wherein the α-olefin derived units are selected from the group consisting of ethylene claim 1 , and C4 to C8 α-olefin derived units claim 1 , and combinations thereof.5. The polypropylene 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.6. ...

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Номер записи: 95
24-05-2018 дата публикации

Catalyst System Containing High Surface Area Supports and Sequential Polymerization to Produce Heterophasic Polymers

Номер: US20180142045A1
Автор: Luo Lubin
Принадлежит:

This invention relates to propylene polymers having multimodal molecular weight distribution and propylene polymerization processes using single site catalyst systems with supports having multimodal particle size distribution comprising one mode peaked at particle size of 3-70 μm, and another mode peaked at particle size of 70-200 μm, the support also having an average particle size of more than 30 μm up to 200 μm and a specific surface area of 400-800 m/g. 1. A catalyst system for making polyolefinic copolymers , comprising:(a) a single site catalyst precursor compound;(b) an activator; and(c) a support having:A) an average particle size of more than 30 μm up to 200 μm; and{'sup': '2', 'B) a specific surface area of 400 to 800 m/g; and'} D) 10 to 90 wt % of support particles having a particle size of 3 to 70 μm and 90 to 10 wt % of support particles having a particle size of greater than 70 to 200 μm, based upon the weight of the support; and/or', 'E) a multimodal particle size distribution comprising a first peak or inflection point having a peak particle size of 3 to 70 μm and a second peak or inflection point having a peak particle size of greater than 70 to 200 μm., 'C) an average pore diameter of 60 to 200 Angstrom; and'}2. The catalyst system of wherein the support has a multimodal particle size distribution comprising a first peak or inflection point having a peak particle size of 40 to 70 μm and a second peak or inflection point having a peak particle size of greater than 70 to 150 μm and the difference between the two peak sizes is at least 10 μm.3. The catalyst system of claim 1 , wherein the support has (1) 10 to 90 wt % of particles having a size of from 20-70 μm claim 1 , and (2) 90 to 10 wt % of particles having a size of greater than 70 to 150 μm.4. The catalyst system of claim 1 , wherein the support has a bimodal particle size distribution.5. The catalyst system of claim 1 , wherein the support has an average particle size of 40 to 150 μm claim 1 , ...

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Номер записи: 96
24-05-2018 дата публикации

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

Номер: US20180142048A1
Автор: Andrew G. Singleton, Demetrius Michos, John Robert Mccauley, Michael D. Jensen
Принадлежит: WR Grace and Co Conn

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.

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Номер записи: 97
04-06-2015 дата публикации

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

Номер: US20150152199A1
Автор: Bhasker Bantu, Gurmeet Singh, Gurpreet Singh Kapur, Naresh Kumar, Ravinder Kumar Malhotra, Shashi Kant, Sukhdeep Kaur
Принадлежит: Indian Oil Corp Ltd

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.

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Номер записи: 98
02-06-2016 дата публикации

Supported Catalyst for Olefin Polymerization, Preparation Method and Use Thereof

Номер: US20160152738A1
Автор: Cheng Ruihua, HE KUELIAN, JINGWEN WANG, Liu Boping, Liu Zhen
Принадлежит: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

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

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Номер записи: 99
16-05-2019 дата публикации

System and Method for Catalyst Preparation

Номер: US20190143287A1
Автор: BENHAM Elizabeth A., GONZALES Rebecca A., MASINO Albert P., Muninger Randy S., YANG Qing
Принадлежит:

Techniques are provided for catalyst preparation. A system for catalyst preparation may include an agitator disposed inside a polymerization catalyst tank and configured to mix a polymerization catalyst and a solvent to generate a polymerization catalyst solution. The system may also include a heating system coupled to the polymerization catalyst tank and configured to maintain a temperature of the polymerization catalyst solution above a threshold. The system may also include a precontactor configured to receive feed streams comprising an activator and the polymerization catalyst solution from the polymerization catalyst tank to generate a catalyst complex. The system may also include a transfer line configured to transfer the catalyst complex from an outlet of the precontactor to a reactor. 120-. (canceled)21. A polymer manufacturing system comprising:(A) a catalyst solution tank configured to contain a metallocene catalyst solution and to supply a precontactor with at least a portion of the metallocene catalyst solution;(B) a precontactor configured to contact the metallocene catalyst solution, an activator, and a co-catalyst to form a catalyst complex;(C) a polymerization reactor system configured to contact the catalyst complex with an olefin monomer and an optional olefin comonomer to produce a polyolefin;(D) an ultraviolet-visible analyzer configured to determine a first concentration of a metallocene catalyst in the metallocene catalyst solution; and(E) a control system configured to control the first concentration of the metallocene catalyst in the metallocene catalyst solution.22. The polymer manufacturing system of claim 21 , wherein the catalyst solution tank contains an agitator configured to mix the metallocene catalyst and a solvent to form the metallocene catalyst solution.23. The polymer manufacturing system of claim 21 , further comprising a heating system coupled to the catalyst solution tank and configured to maintain a temperature of the ...

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Номер записи: 100