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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 13127. 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
07-06-2012 дата публикации

Process for Producing Broader Molecular Weight Distribution Polymers with a Reverse Comonomer Distribution and Low Levels of Long Chain Branches

Номер: US20120141710A1
Автор: Chung C. Tso, David C. Rohlfing, Jeff S. Fodor, Jerry T. Lanier, Joel L. Martin, Max P. McDaniel, Paul J. DesLauriers, QING Yang, Randy S. Muninger, Tony R. Crain
Принадлежит: Chevron Phillips Chemical Co LP

The present invention provides a polymerization process which is conducted by contacting an olefin monomer and at least one olefin comonomer in the presence of hydrogen and a metallocene-based catalyst composition. Polymers produced from the polymerization process are also provided, and these polymers have a reverse comonomer distribution, low levels of long chain branches, and a ratio of Mw/Mn from about 3 to about 6.

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Номер записи: 3
28-06-2012 дата публикации

Polyolefinic compositions

Номер: US20120165472A1
Автор: Gisella Biondini, Marco Ciarafoni, Paola Massari, Roberto Pantaleoni
Принадлежит: Basell Poliolefine Italia Srl

A polymer composition comprising (per cent by weight): a) 70-84% of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13 C-MNR on the fraction insoluble in xylene at 25° C., higher than 97.5 molar %; b) 8-15% of an elastomeric copolymer of ethylene and propylene, the copolymer having an amount of recurring units deriving from ethylene ranging from 25 to 50 wt % and being partially soluble in xylene at ambient temperature; the polymer fraction soluble in xylene at ambient temperature having an intrinsic viscosity value ranging from 2.5 to 3.5 dl/g; and c) 8-15% of ethylene homopolymer having an intrinsic viscosity value ranging from 1.5 to 4 dl/g; said composition having a value of melt flow rate ranging from 55 to 90 g/10 min, and the amount of hexane extractables lower than 3.5 wt %.

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Номер записи: 4
20-09-2012 дата публикации

Process for the polymerisation of olefins

Номер: US20120238714A1
Автор: Christophe Moineau, Stephan Detournay
Принадлежит: Ineos Commercial Services UK Ltd

The present invention relates to a process for polymerisation of olefins, in particular gas phase polymerisation of olefins, with the aid of a supported chromium oxide based catalyst.

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Номер записи: 5
08-11-2012 дата публикации

Bimodal polyethylene for injection stretch blow moulding applications

Номер: US20120282422A1
Автор: Alain Van Sinoy, Aurélien Vantomme, Jean-Marie Boissiere, Pierre Belloir
Принадлежит: Total Petrochemicals Research Feluy SA

A polyethylene resin having a multimodal molecular weight distribution comprising at least two polyethylene fractions A and B, fraction A being substantially free of comonomer and having a lower weight average molecular weight and a higher density than fraction B, each fraction prepared in different reactors of two reactors connected in series in the presence of a Ziegler-Natta catalyst system, the polyethylene resin having a density of from 0.950 to 0.965 g/cm 3 and a melt index MI2 of from 0.5 to 5 g/10 min.

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Номер записи: 6
08-11-2012 дата публикации

High melt strength polyethylene compositions and methods for making the same

Номер: US20120283390A1
Автор: Mehmet Demirors, Nicolas Mazzola, Teresa Karjala
Принадлежит: Dow Brasil SA, Dow Global Technologies LLC

The present invention is a method for increasing the melt strength of a polyethylene resin comprising reacting the polyethylene resin with a free radical generator with a decomposition energy in between −50 kJoule/mole and −250 kJoules/mole and a peak decomposition temperature of less than 280 degree C. The resulting resin has increased melt strength with higher ratio of elongational viscosities at 0.1 to 100 rad/s when compared to substantially similar polyethylene resins which have not been reacted with a free radical generator such as an alkoxy amine derivative.

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Номер записи: 7
10-01-2013 дата публикации

Lubricant component

Номер: US20130012659A1
Автор: Joel David Citron
Принадлежит: EI Du Pont de Nemours and Co

A lubricant component is a copolymer of ethylene and α-olefins made by forming a series of α-olefins by oligomerization of ethylene using an oligomerization catalyst, and then copolymerizing the α-olefins and ethylene using a transition metalcontaining polymerization catalyst. The copolymer, which often has a high Viscosity Index, may be used, for example, in a lubricant as the base oil or a viscosity index modifier. The polyolefin may also be a component of a lubricant additive, meant to be added to an already formulated lubricant to improve the lubricant's properties.

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Номер записи: 8
21-03-2013 дата публикации

Propylene Polymer Compositions

Номер: US20130072634A1
Автор: Claudio Cavalieri, Marco Ciarafoni, Paola Massari, Tiziana Caputo
Принадлежит: Basell Poliolefine Italia Srl

A propylene polymer composition comprising (percent by weight): A) 65%-85% of a propylene copolymer containing from 2.0% to 5.0% of ethylene derived units having MFR L (Melt Flow Rate according to ASTM 1238, condition L, i.e. 230° C. and 2.16 kg load) from 0.5 to 50 g/10 min and a melting temperature Tm ranging from 146° C. to 155° C.; B) 15%-35%, of a copolymer of ethylene and propylene with from 74% to 87%, of ethylene derived units; the composition having the intrinsic viscosity of the fraction soluble in xylene ranging from 0.8 to 1.2 dl/g preferably from 0.9 to 1.1 dl/g.

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Номер записи: 9
27-06-2013 дата публикации

Polypropylene-based terpolymers for films

Номер: US20130165612A1
Автор: Monica Galvan, Roberta Marzolla
Принадлежит: Basell Poliolefine Italia Srl

A terpolymer containing propylene, ethylene and an alpha olefins of formula CH2═CHZ wherein Z is an hydrocarbon group having from 2 to 10 carbon atoms wherein: (i) the content of ethylene derived units ranges from 0.5 wt % to 5.0 wt %; (ii) the content of alpha olefin derived units ranges from 1.0 wt % to 5.0 wt %; (iii) the amount (Wt %) of alpha-olefin (C6), the amount (Wt %) of ethylene (C2) and the melting point (Tm) of the terpolymer fulfil the following relation (1) Tm>−(C2+0.8C6)*6+157 (1) (iv) the polydispersity index (P1) ranges from 3 to 8.

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Номер записи: 10
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: 11
07-11-2013 дата публикации

Olefin block copolymer

Номер: US20130296517A1
Автор: Kyung-Seop Noh, Nan-Young Lee, Sang-Eun An, Sang-Jin Jeon, Won-Hee Kim
Принадлежит: LG Chem Ltd

The present description relates to an olefin block copolymer having excellences in elasticity, heat resistance, and processability. The olefin block copolymer includes a plurality of blocks or segments, each of which includes an ethylene or propylene repeating unit and an α-olefin repeating unit at different weight fractions. In the olefin block copolymer, a first derivative of the number Y of short-chain branches (SCBs) per 1,000 carbon atoms of each polymer chain contained in the block copolymer with respect to the molecular weight X of the polymer chains is a negative or positive number of −1.5×10 −4 or greater; and the first derivative is from −1.0×10 −4 to 1.0×10 −4 in the region corresponding to the median of the molecular weight X or above.

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Номер записи: 12
05-12-2013 дата публикации

Dispersant for suspension polymerization, vinyl chloride resin and method for producing same

Номер: US20130324655A1
Автор: Shigeharu Yoshii
Принадлежит: Denki Kagaku Kogyo KK

Provided are a dispersant for suspension polymerization that is superior in basic properties as primary dispersant: i.e., of giving a vinyl chloride resin with lower fish eye-forming tendency and higher bulk specific density, gives low aqueous solution viscosity and is superior in processability during solubilization, a vinyl chloride resin prepared by using the same and a production method for the resin. Used is a dispersant for suspension polymerization, comprising a modified polyvinyl alcohol containing constituent units carrying carbonyl groups such as alkyl maleates and having a saponification value of 75 mol % or more and less than 90 mol %, an absorbance at a wavelength of 280 nm, as determined as 0.2 mass % aqueous or mixed water and methanol solution, of 0.5 to 2.5 and a viscosity, as determined by the method specified by JIS K 6726, of 4 mPa·s or more and less than 30 mPa·s.

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Номер записи: 13
06-02-2014 дата публикации

Sealing material of polypropylene with high melting temperature

Номер: US20140039124A1
Автор: Kristin Reichelt, Pablo Ivan AGUAYO ARELLANO, Wolfgang Stockreiter
Принадлежит: Borealis AG

Polypropylene composition comprising propylene homopolymer (H-PP) and a propylene copolymer (C-PP), said copolmyer comprises (a) a propylene copolymer fraction (A) having a comonomer content of equal or above 1.0 wt.-%, the comomers are C 5 to C 12 α-olefins, and (b) a propylene copolymer action (B) having a comonomer content of 4.0 to 20.0 wt-%, the comomers are C 5 to C 12 α-olefins, wherein further (i) the comonomer content in propylene copolymer fraction (A) is lower compared to the comonomer content in the propylene copolymer fraction (B), (ii) the propylene copolymer (C-PP) has a comonomer content of at least 2.0 wt.-%, the comomers are C 5 to C 12 α-olefins, (iii) the weight ratio [(A)/(B)] of the propylene copolymer fraction (A) to the propylene copolymer fraction (B) is in the range of 20/80 to 80/20, and (iv) the weight ratio [(C-PP)/(H-PP)] of the propylene copolymer (C-PP) to the propylene homopolymer (H-PP) is in the range of 95/5 to 75/25.

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Номер записи: 14
27-02-2014 дата публикации

Preparation method of superabsorbent polymer

Номер: US20140058048A1
Автор: Chang-Sun Han, Gi-Cheul Kim, Gyu Leem, Kyu-Pal Kim, Sang-Gi Lee, Sung-soo Park, Tae-Young Won
Принадлежит: LG Chem Ltd

The present invention relates to a method of preparing a superabsorbent polymer, including the steps of: preparing a hydrous gel phase polymer by thermal polymerizing or photo-polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying the hydrous gel phase polymer; milling the dried polymer; adding a surface cross-linking agent to the milled polymer; and elevating the temperature of the polymer including the surface cross-linking agent at a speed of 3° C./min to 15° C./min, and carrying out a surface cross-linking reaction at 100° C. to 250° C.

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Номер записи: 15
27-03-2014 дата публикации

Propylene-based copolymer, propylene-based copolymer composition, molded product thereof and foamed product thereof, and production process therefor

Номер: US20140088214A1
Автор: Kazuyoshi Kaneko, Kotaro Ichino, Kyoko Kobayashi, Masahiko Okamoto, Mayumi Yasuda, Tetsuji Kasai
Принадлежит: Mitsui Chemicals Inc

To provide a propylene-based copolymer and a propylene-based copolymer composition, each of which has a high melt tension because it has a long-chain branched structure, exhibits excellent molding processability during molding, such as inflation molding, extrusion molding, blow molding, injection molding or vacuum forming, and is capable of favorably providing a foamed product having an excellent expansion ratio and excellent cell uniformity in the foaming stage. The propylene-based copolymer (A) of the present invention comprises 50 to 95% by mol of constituent units [i] derived from propylene, 4.9 to 49.9% by mol of constituent units [ii] derived from an α-olefin of 2 to 10 carbon atoms other than propylene and 0.1 to 10% by mol of constituent units [iii] derived from a non-conjugated polyene (with the proviso that the total amount of the constituent units [i], [ii] and [iii] is 100% by mol), and is characterized by satisfying specific requirements (a) and (c).

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Номер записи: 16
05-01-2017 дата публикации

PHOTOCURABLE RESIN COMPOSITION FOR FORMING SUPPORT REGIONS

Номер: US20170001382A1
Автор: HAGIWARA Tsuneo, STEPPER Jan-Michael
Принадлежит:

A photocurable resin composition for support regions for use in photochemical fabrication by an inkjet method, which has low viscosity and outstanding photocurability, and where the support regions, formed by the photocuring, have good supporting performance and, following the end of the photochemical fabrication, can readily be removed from the main body by dissolving in water and/or by a weak external force such as a water jet. The photocurable resin composition for support regions for use in photochemical 3D fabrication by the inkjet method contains, based on the total mass of photocurable resin composition, from 2 to 20 mass % of N-hydroxyalkyl (meth) acrylamide, from 2 to 20 mass % of (meth) acryloyl morpholine, from 3 to 30 mass % of (meth) acrylate compound having at least one (meth) acryloyloxy group, from 40 to 90 mass % of polyhydroxy compound containing two or more hydroxyl groups, and from 0.1 to 5 mass % of a photo-radical polymerization initiator. 18-. (canceled)10. The photocurable resin composition for forming the support regions according to claim 9 , wherein a combined content of said N-hydroxyalkyl (meth)acrylamide (I) and said (meth)acryloyl morpholine (II) is from 5 to 40 mass % claim 9 , based on the total mass of the photocurable resin composition for forming said support regions.11. The photocurable resin composition for forming the support regions according to claim 9 , wherein said component (C) is a (meth)acrylate compound having a (meth)acryloyloxy group and an aliphatic polyether structure.12. The photocurable resin composition for forming the support regions according to claim 9 , wherein said component (D) is a non-curable polyhydroxy compound of molecular weight no more than 2000.13. The photocurable resin composition for forming the support regions according to claim 9 , wherein the total mass of the photocurable resin composition for forming said support resin comprises as part of said component (D) from 2 to 10 mass % of diglycerol ...

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Номер записи: 17
04-01-2018 дата публикации

RUBBER COMPOSITION COMPRISING A SPECIFIC HYDROCARBONATED RESIN

Номер: US20180001702A1
Автор: CHATARD JULIEN, De Gaudemaris Benoît, DIMIER FRANCOIS, HELLOT FABIEN, HUT ALAIN
Принадлежит:

A rubber composition is based on at least one diene elastomer, a reinforcing filler, a crosslinking system and a hydrocarbon-based resin. The hydrocarbon-based resin has a number-average molecular weight (Mn) of between 700 and 1000 g/mol, an average molecular weight Mz of greater than 6000 g/mol and a polydispersity index (PI) of greater than 2.4. 115.-. (canceled)16. A rubber composition comprising at least one diene elastomer , a reinforcing filler , a crosslinking system and a hydrocarbon-based resin ,wherein said hydrocarbon-based resin has a number-average molecular weight Mn of between 700 and 1000 g/mol, an average molecular weight Mz of greater than 6000 g/mol and a polydispersity index PI of greater than 2.4.17. The rubber composition according to claim 16 , wherein the at least one diene elastomer is selected from the group consisting of essentially unsaturated diene elastomers.18. The rubber composition according to claim 16 , wherein the at least one diene elastomer is selected from the group consisting of polybutadienes claim 16 , synthetic polyisoprenes claim 16 , natural rubber claim 16 , butadiene copolymers claim 16 , isoprene copolymers and mixtures thereof.19. The rubber composition according to claim 16 , wherein a predominant diene elastomer is selected from the group consisting of polybutadienes claim 16 , copolymers of butadiene and styrene claim 16 , and natural rubber.20. The rubber composition according to claim 16 , wherein the reinforcing filler is selected from the group consisting of silicas claim 16 , carbon blacks and mixtures thereof.21. The rubber composition according to claim 16 , wherein a content of reinforcing filler is within a range extending from 5 to 200 phr.22. The rubber composition according to claim 21 , wherein the content of reinforcing filler is within a range extending from 40 to 160 phr.23. The rubber composition according to claim 16 , wherein a content of the hydrocarbon-based resin is within a range extending ...

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Номер записи: 18
02-01-2020 дата публикации

MANUFACTURING METHOD OF CARBON NANOTUBE CONDUCTIVE MICROSPHERES AND CONDUCTIVE GLUE

Номер: US20200002173A1
Автор: Liang Yuheng
Принадлежит:

The present invention provides a manufacturing method of carbon nanotube conductive microspheres and conductive glue. in comparison with a manufacturing method of carbon nanotube conductive microspheres provided by the present invention provides and the conventional “two-step method” which needs to prepare the plastic or resin microspheres and then plating the conductive metal, it is not necessary to respectively prepare the plastic or resin microspheres and the conductive layer, instead, the carbon nanotube are mixed in the polymer microspheres when the styrene monomer, the crosslinking agent and the initiator have a crosslinking reaction to form the polymer microspheres with a method of spray-granulation. Only one step is needed to prepare the conductive microspheres with carbon nanotube as the conductive medium, which can simplify the process, reduce the process, save cost. With mixing the carbon nanotube inside the polymer microspheres, the thermal mismatching between the carbon nanotubes and the resin can be illuminated, to ensure the conductive properties of conductive microspheres. Furthermore, the entire preparing process has no heavy metal salts; the bio-toxicity is reduced and no environmental pollution. The present invention provides a conductive glue, which comprises the carbon nanotube conductive microspheres manufactured by the manufacturing method of carbon nanotube conductive microspheres are easy to manufacture, lower cost, lower impact of thermal mismatching, great conductive properties, and no environmental pollution. 1. A conductive glue comprising carbon nanotube conductive microspheres manufactured by a manufacturing method which comprises following steps:{'b': '1', 'step S, providing a styrene monomer, a crosslinking agent, and an initiator, proportionally mixing the styrene monomer, the crosslinking agent and the initiator to obtain a first liquid;'}{'b': '2', 'step S, providing a dispersant, a surfactant and a carbon nanotube, dissolving- ...

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Номер записи: 19
05-01-2017 дата публикации

Rubber composition, modified polymer, and tire

Номер: US20170002101A1
Автор: Manabu Kato, Ryota Takahashi, Takahiro Okamatsu, Yoshiaki Kirino
Принадлежит: Yokohama Rubber Co Ltd

An object of the present invention is to provide a modified polymer that can realize a rubber composition having excellent low heat build-up and that has excellent productivity, a rubber composition containing the modified polymer, and a tire produced using the rubber composition. The modified polymer of the present invention is obtained by reacting a modifier having a nitrone group and a carboxy group with a conjugated diene polymer not containing a tetrasubstituted olefin and/or a trisubstituted olefin.

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Номер записи: 20
05-01-2017 дата публикации

PROCESS FOR PRODUCING ETHYLENE/UNSATURATED CARBOXYLIC ACID COPOLYMER, AND SAID COPOLYMER

Номер: US20170002120A1
Автор: EGASHIRA Toshiaki, SATO Naomasa, Shimizu Fumihiko, TANNA Akio
Принадлежит:

Provided is a process of effectively producing an ethylene/unsaturated carboxylic acid copolymer having excellent mechanical and thermal properties. A process for producing an ethylene/unsaturated carboxylic acid copolymer comprises: producing an ethylene/unsaturated carboxylic acid ester copolymer from ethylene and unsaturated carboxylic acid ester using a late-transition-metal complex catalyst; and heating the ethylene/unsaturated carboxylic acid ester copolymer at a temperature capable of converting the ester group into a carboxylic acid group, thereby converting into the ethylene/unsaturated carboxylic acid copolymer. 1. A process for producing an ethylene/unsaturated carboxylic acid copolymer comprising a structural unit derived from ethylene and a structural unit derived from unsaturated carboxylic acid , which have been copolymerized randomly and linearly , wherein the process comprises: producing an ethylene/unsaturated carboxylic acid ester copolymer from ethylene and unsaturated carboxylic acid ester using a late-transition-metal complex catalyst; and heating the ethylene/unsaturated carboxylic acid ester copolymer at a temperature capable of converting the ester group into a carboxylic acid group , thereby converting into the ethylene/unsaturated carboxylic acid copolymer2. The process for producing an ethylene/unsaturated carboxylic acid copolymer according to claim 1 , wherein the unsaturated carboxylic acid ester is (meth)acrylic acid ester and the unsaturated carboxylic acid is (meth)acrylic acid.3. The process for producing an ethylene/unsaturated carboxylic acid copolymer according to claim 1 , wherein a temperature of the heating is 150-350° C.5. The process for producing an ethylene/unsaturated carboxylic acid copolymer according to claim 1 , wherein the late-transition-metal complex is a phosphine-phenolate complex or a phosphine-sulfonate complex.6. The process for producing an ethylene/unsaturated carboxylic acid copolymer according to claim 1 ...

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Номер записи: 21
02-01-2020 дата публикации

ACRYLIC RUBBER, ACRYLIC RUBBER COMPOSITION, AND CROSSLINKED ACRYLIC RUBBER

Номер: US20200002523A1
Автор: EJIRI Kazuhiro, FURUKO Ayako, MASUDA Hirofumi
Принадлежит: ZEON CORPORATION

An acrylic rubber includes a (meth)acrylate ester monomeric unit; and a crosslinkable monomeric unit, wherein a complex viscosity at 60° C. denoted as η*(60° C.) and a complex viscosity at 100° C. denoted as η*(100° C.) satisfy the following formula (1) and the following formula (2). 1. An acrylic rubber comprising:a (meth)acrylate ester monomeric unit; anda crosslinkable monomeric unit, [{'br': None, 'η*(100° C.)/η*(60° C.)<0.8\u2003\u2003(1)'}, {'br': None, 'η*(100° C.)<3500 Pa·s\u2003\u2003(2).'}], 'wherein a complex viscosity at 60° C. denoted as η*(60° C.) and a complex viscosity at 100° C. denoted as η*(100° C.) satisfy a following formula (1) and a following formula (2)2. The acrylic rubber as claimed in claim 1 , {'br': None, 'LCBindex>6.0\u2003\u2003(3).'}, 'wherein a long-chain branching index LCBindex satisfies a following formula (3)3. An acrylic rubber comprising:a (meth)acrylate ester monomeric unit;a polyfunctional monomeric unit; anda crosslinkable monomeric unit, [{'br': None, 'η*(100° C.)<3500 Pa·s\u2003\u2003(4)'}, {'br': None, 'LCBindex>6.0\u2003\u2003(5).'}], 'wherein a complex viscosity at 100° C. denoted as η*(100° C.) satisfies a following formula (4) and a long-chain branching index LCBindex satisfies a following formula (5)4. The acrylic rubber as claimed in claim 1 , wherein the crosslinkable monomeric unit is a monomeric unit that contains at least one of a carboxyl group claim 1 , an epoxy group claim 1 , and a halogen group.5. The acrylic rubber as claimed in claim 1 , wherein a weight-average molecular weight Mw is 240 claim 1 ,000 to 820 claim 1 ,000.6. An acrylic rubber composition containing the acrylic rubber as claimed in and a crosslinking agent.7. A crosslinked acrylic rubber formed by crosslinking the acrylic rubber composition as claimed in .8. The acrylic rubber as claimed in claim 3 , wherein the crosslinkable monomeric unit is a monomeric unit that contains at least one of a carboxyl group claim 3 , an epoxy group claim 3 , ...

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Номер записи: 22
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: 23
03-01-2019 дата публикации

Ultra-High Molecular Weight Ethylene-Based Copolymer Powder, and Molded Article Using Ultra-High Molecular Weight Ethylene-Based Copolymer Powder

Номер: US20190002611A1
Автор: Yoshiaki Hamada
Принадлежит: Asahi Kasei Corp

An ultra-high molecular weight ethylene-based copolymer powder comprising: an ethylene unit and an α-olefin unit having 3 or more and 8 or less carbon atoms as structural units, wherein the ultra-high molecular weight ethylene-based copolymer powder has a viscosity-average molecular weight of 100,000 or more and 10,000,000 or less, a content of the α-olefin unit is 0.01 mol % or more and 0.10 mol % or less based on a total amount of the ethylene unit and the α-olefin unit, and in measurement with a differential scanning calorimeter under following conditions,an isothermal crystallization time is determined as a time from reaching 126° C. of Step A3 as a starting point (0 min) to giving an exothermic peak top due to crystallization and the isothermal crystallization time is 5 minutes or more. (Conditions for measurement of isothermal crystallization time) Step A1: holding at 50° C. for 1 minute and then an increase up to 180° C. at a temperature rise rate of 10° C./min, Step A2: holding at 180° C. for 30 minutes and then a decrease down to 126° C. at a temperature drop rate of 80° C./min, and Step A3: holding at 126° C.

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Номер записи: 24
03-01-2019 дата публикации

METHODS FOR DYEING ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE AND DYED ARTICLES MADE BY THE SAME

Номер: US20190002649A1
Автор: Foote Bruce, Molz Thomas R.
Принадлежит:

Dyed articles, such as sutures, and methods for making the same by treating with a supercritical liquid are disclosed. The articles may be made at least partially, if not entirely, from ultra-high molecular weight polyethylene (UHMWPE). The dye may be D&C Violet #2. 1. A method of dyeing an article comprising an ultra-high molecular weight polyethylene (UHMWPE) , comprising contacting the article with a supercritical liquid and D&C Violet #2.2. The method of claim 1 , further comprising applying a pressure from about 3 claim 1 ,600 psi to about 3 claim 1 ,800 psi.3. The method of claim 1 , further comprising applying a temperature from about 110° C. to about 130° C.4. The method of claim 3 , wherein the temperature is maintained for about 90 to about 180 minutes.5. The method of claim 4 , wherein the dyed article has a color contrast of at least about 90%.6. The method of claim 1 , wherein the article is a suture.7. A dyed article made by the process of . This application claims the benefit of U.S. Provisional Application No. 62/275,268, filed on Jan. 6, 2016, the entire contents of which are incorporated by reference herein in entirety.The invention relates to a process for dyeing an article comprising an ultra-high weight polyethylene, with D&C Violet #2. A supercritical liquid is applied to the article with the dye at a specified temperature and pressure to yield the desired dyed article.In a process known in the art, highly oriented ultra-high molecular weight polyethylene fibers are contacted with a dye bath at a temperature of 100-130° C. for 20-60 minutes, with the dye bath consisting of an aqueous dispersion of a finely ground mixture of specific dyes and surfactants whereupon the moulded article is washed and dried. For good dyeing results the fibers are preferably modified by means of a plasma or corona treatment prior to the dyeing operation. An important drawback of the known process is that the dyed fibers, particularly if they are not first modified by ...

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Номер записи: 25
03-01-2019 дата публикации

ELASTOMER MATERIAL FOR MEDICAL DEVICES AND ELASTOMER MOLDED BODY FOR MEDICAL DEVICES

Номер: US20190002682A1
Автор: TOMIZUKA Kazuhito
Принадлежит: OLYMPUS CORPORATION

This elastomer material for medical devices contains: a first fluorine-based elastomer that is a ternary copolymer comprising three kinds of monomers A, B and C; and a second fluorine-based elastomer that is a ternary copolymer comprising the monomers A and B and a monomer D which is different from any one of the monomers A, B and C. The monomer C and the monomer D have side chains that have structures different from each other. 1. An elastomer material for medical devices comprising:a first fluorine-based elastomer which is a ternary copolymer having three kinds of monomers A, B and C; anda second fluorine-based elastomer which is a ternary copolymer having the monomers A and B and a monomer D different from any one of the monomers A, B and C,wherein the monomer A is vinylidene fluoride, the monomer B is tetrafluoroethylene, the monomer C is hexafluoropropylene, and the monomer D is perfluoroalkyl vinyl ether.2. The elastomer material for medical devices according to claim 1 , wherein claim 1 ,when total content of the first fluorine-based elastomer and the second fluorine-based elastomer is 100 parts by weight, a crosslinking aid is contained in an amount of not more than 15 parts by weight and not zero.3. The elastomer material for medical devices according to claim 1 , wherein claim 1 ,when total content of the first fluorine-based elastomer and the second fluorine-based elastomer is 100 parts by weight, a filler is contained in an amount of not more than 50 parts by weight and not zero.4. The elastomer material for medical devices according to claim 1 , wherein claim 1 ,when total content of the first fluorine-based elastomer and the second fluorine-based elastomer is 100 parts by weight, a third fluorine-based elastomer whose number average molecular weight is 5000 or less and having no crosslinking reactive group is contained in an amount of not more than 50 parts by weight and not zero.5. An elastomer molded body for medical devices comprising:a first ...

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Номер записи: 26
03-01-2019 дата публикации

POLYAMIDE NANOPARTICLES AND USES THEREOF

Номер: US20190002706A1
Автор: Banin Ehud, GUTMAN Ori, MARGEL Shlomo, NATAN Michal
Принадлежит:

Nanoparticles of N-halamine-derivatized crosslinked polyamide. Process of preparing the polymeric nanoparticles per se and incorporated in or on a substrate. Uses of the polymeric nanoparticles and of substrates incorporating same, particularly for reducing a formation of organic-based contaminants, e.g., load of a microorganism or of a biofilm. 2. The article of claim 1 , being selected from the group consisting of a medical device claim 1 , organic waste processing device claim 1 , fluidic device claim 1 , water system device claim 1 , tubing claim 1 , an agricultural device claim 1 , a package claim 1 , a sealing article claim 1 , a fuel container and a construction element.3. The article of claim 1 , wherein said halogen atom claim 1 , in one or more instances claim 1 , is bound to the nitrogen belonging to said Aand/or to said A.5. The method of claim 4 , wherein said load of organic-based contaminant is selected from a load of a microorganism claim 4 , or biofilm claim 4 , said microorganism being selected from the group consisting of: viruses claim 4 , fungi claim 4 , parasites claim 4 , yeast claim 4 , bacteria claim 4 , and protozoa.6. The method of claim 5 , wherein the bacterium is selected from the group consisting of: Gram positive bacteria claim 5 , and Gram negative bacteria.7. The method of claim 6 , wherein the bacterium is selected from the group consisting of Gram negative bacteria.8. The method of claim 4 , wherein said load of organic-based contaminant is maintained substantially reduced over a period of up to at least six months.9. The method of claim 4 , further comprising one or more dehalogenating-rehalogenating cycles with halogen atoms selected from the group consisting of Cl claim 4 , Br claim 4 , and I.10. The method of claim 9 , wherein said load of organic-based contaminant is maintained substantially reduced after at least one dehalogenating-rehalogenating cycle with said halogen atom.11. The method of claim 4 , wherein said Ais ...

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Номер записи: 27
05-01-2017 дата публикации

SEMICONDUCTOR ELEMENT AND INSULATING LAYER-FORMING COMPOSITION

Номер: US20170005266A1
Автор: Nagata Yuzo, Takizawa Hiroo, Tsuchimura Tomotaka, TSURUTA Takuya
Принадлежит: FUJIFILM Corporation

Provided is a semiconductor element having a semiconductor layer and an insulating layer adjacent to the semiconductor layer, in which the insulating layer is formed of a crosslinked product of a polymer compound having a repeating unit (IA) represented by the following General Formula (IA) and a repeating unit (IB) represented by the following General Formula (IB). 2. The semiconductor element according to claim 1 , wherein Lis represented by the following Formula (1a) claim 1 ,{'br': None, 'sup': 1a', '3a, '*-Ar-L** \u2003\u2003Formula (1a)'}{'sup': 3a', '1a', '1a', '2a, 'in Formula (1a), Lrepresents a single bond or a linking group, Arrepresents an aromatic ring, * indicates the bonding position of the carbon atom to which Rin the repeating unit (IA) is bonded, and ** indicates the bonding position of Lin the repeating unit (IA).'}3. The semiconductor element according to claim 2 , wherein Aris a benzene ring.6. The semiconductor element according to claim 1 , wherein the crosslinkable group X is an epoxy group claim 1 , an oxetanyl group claim 1 , a hydroxymethyl group claim 1 , an alkoxymethyl group claim 1 , a (meth)acryloyloxy group claim 1 , a styryl group claim 1 , or a vinyl group.7. The semiconductor element according to claim 1 , wherein the crosslinkable group X is a hydroxymethyl group or an alkoxymethyl group.8. The semiconductor element according to claim 1 , wherein the crosslinked product is a crosslinked product by a crosslinking reaction between the crosslinkable group X of the repeating unit (IA) and the repeating unit (IB).9. The semiconductor element according to claim 8 , wherein the crosslinked product has a crosslinked portion where a hydroxymethyl group or an alkoxymethyl group as a crosslinkable group is formed by a reaction.10. The semiconductor element according to claim 1 , wherein the semiconductor layer contains an organic semiconductor. This application is a Continuation of PCT International Application No. PCT/JP2015/058775 filed ...

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Номер записи: 28
02-01-2020 дата публикации

EDDER COMPOUND AND CAPACITOR THEREOF

Номер: US20200006000A1
Автор: EDDER Carine, Lazarev Pavel Ivan
Принадлежит:

A metadielectric composite oligomeric organic material according to the formula: 3. The metadielectric composite oligomeric organic material of wherein all resistive insulating groups are selected independently from the group consisting of non-aromatic carbocycles and non-aromatic heterocycles.4. The metadielectric composite oligomeric organic material of wherein each instance of A is independently selected from —NO claim 1 , —CHO (aldehyde) claim 1 , —CRO (keto group) claim 1 , —SOH (sulfonic acids) claim 1 , —SOR (sulfonates) claim 1 , SONH claim 1 , —SONHR claim 1 , —SONR′R″ (sulfonamides) claim 1 , —COOH (carboxylic acid) claim 1 , —COOR (esters claim 1 , from carboxylic acid side) claim 1 , —CONH claim 1 , CONHR claim 1 , CONR′R″ (amides claim 1 , from carboxylic acid side) claim 1 , —CF claim 1 , —CCl claim 1 , and —CN claim 1 , and{'sub': 2', '2', '6', '5, 'wherein each instance of D is independently selected from —NH, —NHR, —NR, —OH, OR (ethers), —NHCOR (amides, from amine side), —OCOR (esters, from alcohol side), alkyls, —CH, and vinyls, and'}wherein R and R′ and R″ are radicals independently selected from the list comprising hydrogen, alkyl (methyl, ethyl, isopropyl, tert-butyl, neopentyl, cyclohexyl etc.), allyl (˜CH2-CH═CH2), benzyl (—CH2C6H5) groups, phenyl (+substituted phenyl) and other aryl (aromatic) groups.6. The composite oligomeric organic material of wherein the insulating resistive groups are independently selected from the group consisting of saturated hydrocarbon claim 1 , saturated halogenated hydrocarbon claim 1 , partially halogenated hydrocarbon claim 1 , aryl chain claim 1 , and cycloalkyl claim 1 , and X—RR′R″; wherein X is selected from C claim 1 , O claim 1 , N claim 1 , and S claim 1 , and R claim 1 , R′ claim 1 , and R″ claim 1 , wherein R′ and R″ are absent when necessitated by the valence of X claim 1 , are independently selected from H and C claim 1 , wherein one or more of R claim 1 , R′ claim 1 , and R″ is C.7. The composite ...

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Номер записи: 29
20-01-2022 дата публикации

RAPID ACTIVATION PROCESS AND ACTIVATION TREATMENTS FOR CHROMIUM CATALYSTS FOR PRODUCING HIGH MELT INDEX POLYETHYLENES

Номер: US20220017661A1
Автор: CLEAR Kathy S., CYMBALUK Ted H., ELLIS William C., GAGAN Deloris R., MCDANIEL Max P.
Принадлежит: CHEVRON PHILLIPS CHEMICAL COMPANY LP

Processes for activating chromium polymerization catalysts, which can use lower maximum activation temperatures and shorter activation times than conventional activation methods, and provide polyethylenes with high melt indices, broader molecular weight distributions, and lower long chain branching content. The activation process can comprise heating a supported chromium catalyst in an inert atmosphere to a first temperature (T) for a first hold time (t), followed by allowing the chromium catalyst to attain a second temperature (T) in the inert atmosphere, then contacting the chromium catalyst with an oxidative atmosphere for a second hold time (t), in which Tcan be less than or equal to T. Additional activation treatments and conditioning steps are disclosed which can be used to enhance the melt index potential of Phillips (Cr/silica) catalysts. 1. A process for preparing a supported chromium catalyst , the process comprising:(a) calcining a silicon oxide at a first temperature to provide a calcined silicon oxide comprising siloxane moieties, wherein the first temperature is above 600° C.;(b) contacting the calcined silicon oxide with a chromium composition comprising a chromium source in an anhydrous, aprotic solvent, to form a chromium-treated silicon oxide comprising a residual solvent; and(c) heating the chromium-treated silicon oxide to a second temperature to remove the residual solvent and form the supported chromium catalyst, wherein the second temperature is less than the first temperature.2. The process of claim 1 , wherein the chromium source comprises a compound of chromium(VI).3. The process of claim 1 , wherein the chromium source comprises CrO claim 1 , bis(t-butyl) chromate claim 1 , bis(triphenylsilyl) chromate claim 1 , diarenechromium(0) claim 1 , chromium tris(acetylacetonate) claim 1 , or CrCl.4. The process of claim 3 , wherein the chromium composition comprises CrOdissolved in acetonitrile.5. The process of claim 1 , wherein the supported ...

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Номер записи: 30
12-01-2017 дата публикации

Binder for formation of ceramic or for use in conductive paste, and use of same

Номер: US20170008988A1
Автор: Kazuki Tokuchi, Takeshi Kusudou, Yoshiaki Asanuma, Yuhi Shimazumi
Принадлежит: Kuraray Co Ltd

There is provided a binder for ceramic formation or a conductive paste, comprising polyvinyl acetal having a degree of acetalization of from 50 to 85 mol %, a content of vinyl ester monomer unit of from 0.1 to 20 mol %, and having a viscosity-average degree of polymerization of from 200 to 5000, wherein a peak-top molecular weight (A) as measured by a differential refractive index detector and a peak-top molecular weight (B) as measured by an absorptiometer (measurement wavelength: 280 nm) in gel permeation chromatographic measurement of the polyvinyl acetal heated at 230° C. for 3 hours satisfy a formula (1) (A−B)/A<0.60 and the polyvinyl acetal has an absorbance in the peak-top molecular weight (B) of from 0.50×10 −3 to 1.00×10 −2 .

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Номер записи: 31
12-01-2017 дата публикации

POLYAMIDE NANOPARTICLES AND USES THEREOF

Номер: US20170009084A1
Автор: Banin Ehud, GUTMAN Ori, MARGEL Shlomo, NATAN Michal
Принадлежит:

Nanoparticles of N-halamine-derivatized crosslinked polyamide. Process of preparing the polymeric nanoparticles per se and incorporated in or on a substrate. Uses of the polymeric nanoparticles and of substrates incorporating same, particularly for reducing a formation of organic based contaminants, e.g., load of a microorganism or of a biofilm. 134.-. (canceled)36. The composition-of-matter of claim 35 , wherein said Ais methacrylamide.37. The composition-of-matter of wherein said Ais selected from the group consisting of: N claim 35 ,N′-methylene bisacrylamide claim 35 , N claim 35 ,N′-ethylene bisacrylamide claim 35 , and any derivative thereof.38. The composition-of-matter of claim 37 , wherein said Ais N claim 37 ,N′-methylene bisacrylamide.39. The composition-of-matter of claim 35 , wherein said n has a value such that n/(x+y) multiplied by 100 is at least 0.1.40. The composition-of-matter of claim 35 , being in the form of a dry powder.41. The composition-of-matter of claim 35 , wherein said plurality of crosslinked polymeric backbones is characterized by an average hydrodynamic diameter of less than 50 nm with a size distribution of that varies within a range of less than 20%.42. The composition-of-matter of claim 35 , further comprising a substrate claim 35 , wherein said plurality of crosslinked polymeric backbones is incorporated or coated in/on at least a portion of said substrate.43. The composition-of-matter of claim 42 , wherein said substrate is or forms a part of an article.44. The composition-of-matter of claim 42 , wherein said substrate comprises or is made of a polymer claim 42 , wood claim 42 , a metal claim 42 , glass claim 42 , carbon claim 42 , a biopolymer and/or silicon.45. An article comprising the composition-of-matter of .46. The article of claim 45 , being selected from the group consisting of a medical device claim 45 , organic waste processing device claim 45 , fluidic device claim 45 , water system device claim 45 , tubing claim 45 ...

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Номер записи: 32
11-01-2018 дата публикации

CATALYST SYSTEMS FOR OLEFIN POLYMERIZATION

Номер: US20180009958A1
Автор: Demirors Mehmet, Desjardins Sylvie, Figueroa Ruth, Fontaine Philip P., Kapur Mridula, Klosin Jerzy, Thomas Pulikkottil J.
Принадлежит: Dow Global Technologies LLC

The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal-ligand complex of formula (I): 2. The procatalyst according to wherein Z is O.3. A catalyst system comprising the reaction product of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'one or more procatalysts of ; and'}one or more cocatalysts; wherein the ratio of total number of moles of the one or more metal-ligand complexes of formula (I) to total number of moles of the one or more cocatalysts is from 1:10,000 to 100:1.4. A polymerization process comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'polymerizing one or more α-olefins in the presence of one or more catalyst systems of under olefin polymerizing conditions; and thereby forming an olefin based polymer.'}5. An olefin based polymer comprising the polymerization reaction product of:{'claim-ref': {'@idref': 'CLM-00003', 'claim 3'}, 'one or more α-olefins in the presence of one or more catalyst systems of under olefin polymerizing conditions.'} The present application is a continuation of U.S. patent application Ser. No. 14/437,543, filed on Apr. 22, 2015, which is a national stage entry of PCT/US2013/073976, filed on Dec. 10, 2013, which claims the benefit of U.S. Provisional Application No. 61/746,151, filed on Dec. 27, 2012.The instant invention relates to procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, articles made from such polymers, and process for producing the same.Olefin based polymers such as polyethylene and/or polypropylene are produced via various catalyst systems. Selection of such catalyst system used in the polymerisation process of the olefin based polymers is an important factor contributing to the characteristics and properties of such olefin based ...

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Номер записи: 33
11-01-2018 дата публикации

INK COMPOSITION INCLUDING A MODIFIED POLYMER OR COPOLYMER ADDITIVE

Номер: US20180010003A1
Автор: Harvey Natalie, Jakubek Vladimir, McManus Richard J., Vasudevan Sundar
Принадлежит:

An ink composition includes water, a co-solvent, a colorant, and a modified polymer or copolymer additive. The modified polymer or copolymer additive is selected from the group consisting of i) a hydrolyzed poly(isobutylene-alt-maleic anhydride), ii) a hydrolyzed poly(maleic anhydride-alt-1-octadecene), and iii) a modified polymer or copolymer. The modified polymer or copolymer includes a repeating unit of a backbone chain, and a long chain pendant group attached to a carbon atom of the repeating unit. In the backbone chain, the long chain pendant group of the repeating unit is separated by fewer than 8 spacer carbon atoms from another long chain pendant group of an adjacent repeating unit. 1. An ink composition , comprising:water;a co-solvent;a colorant; and i) a hydrolyzed poly(isobutylene-alt-maleic anhydride);', 'ii) a hydrolyzed poly(maleic anhydride-alt-1-octadecene); and', a repeating unit of a backbone chain; and', 'a long chain pendant group attached to a carbon atom of the repeating unit;', 'wherein in the backbone chain, the long chain pendant group of the repeating unit is separated by fewer than 8 spacer carbon atoms from an other long chain pendant group of an adjacent repeating unit., 'iii) a modified polymer or copolymer including], 'a modified polymer or copolymer additive selected from the group consisting of2. The ink composition as defined in wherein the long chain pendant group includes an ethylene oxide group claim 1 , and wherein a ratio of a number of linear atoms in the long chain pendant group to spacer carbon atoms between equivalent chemical sites in the backbone chain is at least 25:3.3. The ink composition as defined in wherein the repeating unit is formed from a monomer or comonomer selected from the group consisting of maleic anhydride claim 1 , an acrylic monomer or comonomer claim 1 , a methacrylic monomer or comonomer claim 1 , an amine monomer or comonomer claim 1 , a vinyl alcohol monomer or comonomer claim 1 , an allyl alcohol ...

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Номер записи: 34
11-01-2018 дата публикации

ADHESIVE COMPOSITION

Номер: US20180010023A1
Автор: Jeruzal Mark, Liu Yi, Stubenrauch Kurt
Принадлежит:

The present invention relates to an adhesive composition comprising a. a polyethylene resin (A) which has been grafted with an acid grafting agent and b. an epoxy resin (B) in an amount of 0.01 to 15 wt. % of the adhesive total composition, wherein the adhesive composition is having a MFRof 0.1 to 12 g/10 min. Furthermore, the invention relates to an article, in particular a multilayer pipe, comprising an adhesive layer which comprises said adhesive composition and the use of said adhesive composition for the production of an adhesive layer, in particular of an adhesive layer of a pipe. 1. An adhesive composition comprisinga. a polyethylene resin (A) which has been grafted with an acid grafting agent andb. an epoxy resin (B) in an amount of 0.01 to 15 wt. % of the adhesive total composition,wherein the adhesive composition is having a MFR5 of 0.1 to 12 g/10 min.2. The adhesive composition according to wherein the adhesive composition has a density of 910 to 990 kg/m3.3. The adhesive composition according to wherein the adhesive composition further comprises an elastomeric resin (C).4. The adhesive composition according to wherein the elastomeric resin (C) is present in an amount of 2 to 60 wt. % claim 1 , of the total composition.5. The adhesive composition according to wherein the polyethylene resin (A) has a MFR2 of 0.5 to 20 g/10 min.6. The adhesive composition according to wherein the polyethylene resin (A) has a density of 920 to 970 kg/m3.7. The adhesive composition according to wherein the acid grafting agent is selected from unsaturated carboxylic acids and derivatives thereof.8. The adhesive composition according to wherein the amount of said acid grafting agent is from 0.01 to 3.0 wt. % claim 1 , of the overall composition.9. The adhesive composition according to wherein the epoxy resin (B) is present in an amount of 0.05 to 20 wt. % of the total composition.10. The adhesive composition according to wherein the epoxy resin (B) is a Bisphenol A resin.11. An ...

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Номер записи: 35
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: 36
10-01-2019 дата публикации

Ethylene based polymer composition suitable for use in extrusion coating

Номер: US20190010262A1
Автор: Fan Ling, Franciscus Petrus Hermanus SCHREURS, Kun Jiang, Qiang Wang, Zaichuan HOU
Принадлежит: SABIC Global Technologies BV

The present invention relates to an ethylene based polymer composition suitable for use in extrusion coating. The present invention also relates to an extrusion coating product comprising such composition and the use of such a composition.

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Номер записи: 37
10-01-2019 дата публикации

PHOTOACTIVATABLE FOULING-RESISTANT COPOLYMERS

Номер: US20190010268A1
Автор: Bouchard Michael, LI JUN, TOROK FANNI, Victor John, ZHANG Zheng
Принадлежит: Arrow International, Inc.

A photoactivatable fouling-resistant copolymer composed of a photoactivatable monomer and a hydrophilic monomer is disclosed. The photoactivatable monomer includes an aryl ketone derivative having one or more polar groups or alkyl groups. 156-. (canceled)57. A photoactivatable fouling-resistant copolymer comprising:(a) a photoactivatable monomer including an aryl ketone derivative having one or more polar groups or alkyl groups, and(b) a hydrophilic monomer.59. The copolymer of claim 57 , wherein the photoactivatable monomer is present in an amount of 0.1 to 70% by weight based on the total weight of the copolymer.60. The copolymer of claim 57 , wherein the hydrophilic monomer is present in an amount of 30 to 99.9% by weight based on the total weight of the copolymer.61. The copolymer of claim 57 , wherein the photoactivatable monomer comprises the one or more polar groups or alkyl groups.62. The copolymer of claim 57 , wherein the polar group of the photoactivatable monomer comprises at least one of carboxylic acid claim 57 , a sulfonate group claim 57 , a nitro group claim 57 , a hydroxyl claim 57 , carboxy claim 57 , amino claim 57 , amide claim 57 , phosphate or ether group.63. The copolymer of claim 57 , wherein the alkyl group of the photoactivatable monomer or the hydrophilic monomer comprises at least one of a methyl claim 57 , ethyl claim 57 , or propyl group.64. The copolymer of claim 57 , wherein the copolymer has a weight average molecular weight ranging from 5 claim 57 ,000 to 200 claim 57 ,000.65. The copolymer of claim 57 , wherein the photoactivatable monomer comprises at least one unsaturated group.66. The copolymer of claim 57 , wherein the hydrophilic monomer comprises at least one unsaturated group.67. The copolymer of claim 65 , wherein the unsaturated group is a methacrylate claim 65 , acrylate claim 65 , acrylamide claim 65 , vinyl group or mixtures thereof.69. The copolymer of claim 57 , wherein the hydrophilic monomer is a sulfobetaine ...

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Номер записи: 38
10-01-2019 дата публикации

Resin composition and application thereof

Номер: US20190010321A1
Автор: Chih-Wei Tsai, Kuan-Lin Hsieh
Принадлежит: Chi Mei Corp

A resin composition and an application thereof are provided, wherein the resin composition includes a thermoplastic elastomer, a styrene-based resin, a processing oil, and a filler. Based on 100 wt % of the resin composition, the content of the thermoplastic elastomer is 20 wt % to 55 wt %, the content of the styrene-based resin is 25 wt % to 55 wt %, the content of the processing oil is 6 wt % to 18 wt %, and the content of the filler is 5 wt % to 20 wt %. A printing material made by the resin composition has good adhesion with a substrate.

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Номер записи: 39
10-01-2019 дата публикации

POLYESTER RESIN COMPOSITION AND METHOD FOR PRODUCING SAME

Номер: US20190010325A1
Автор: SAKOGAWA Kouichi, TAKISE Osamu, YAMANAKA Yasushi, YAMASHITA Masaya
Принадлежит: Mitsubishi Engineering-Plastics Corporation

Provided are: a polyester resin composition that exhibits excellent flame retardancy and melt thermal stability and also exhibits excellent laser markability; and a method for producing same. The present invention provides: a polyester resin composition containing 3 to 60 parts by mass of a brominated polyacrylate flame retardant (B) relative to 100 parts by mass of a thermoplastic polyester resin (A), this brominated polyacrylate flame retardant (B) having a Na element concentration of 5 to 4000 ppm, as measured by X-Ray fluorescence analysis; and a production method including washing the brominated polyacrylate flame retardant (B) with hot water having a temperature of 40° C. to 100° C., then drying the washed product, and then mixing the dried product with the thermoplastic polyester resin (A). 1. A polyester resin composition , comprising:(A) 100 parts by mass of a thermoplastic polyester resin (A); and(B) 3 to 60 parts by mass of a brominated polyacrylate flame retardant (B), relative to the 100 parts by mass of the thermoplastic polyester resin (A),wherein the brominated polyacrylate flame retardant (B) has a Na element concentration of 5 to 4000 ppm, as measured by X-Ray fluorescence analysis.2. The polyester resin composition according to claim 1 , wherein the brominated polyacrylate flame retardant (B) has a Na element concentration of 100 to 1500 ppm.3. The polyester resin composition according to claim 1 , wherein the brominated polyacrylate flame retardant (B) has a Mg ion concentration of 5 to 2000 ppm and an Al ion concentration of 5 to 3000 ppm claim 1 , as measured by TCP emission spectrometry.4. The polyester resin composition according to claim 1 , wherein the brominated polyacrylate flame retardant (B) is a pentabromobenzyl polyacrylate.5. The polyester resin composition according to claim 1 , wherein the brominated polyacrylate flame retardant (B) contains sodium bromide.6. The polyester resin composition according to claim 1 , further comprising ...

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Номер записи: 40
09-01-2020 дата публикации

Polymer Compositions With PBSA Plasticizer

Номер: US20200010628A1
Автор: Arnold Rachelle, Johnson Adam, Van Trump Phillip
Принадлежит: Danimer Bioplastics, Inc.

A polymeric composition is disclosed which includes from about 40 to about 99 weight percent of a first polymer and from about 1 to about 60 weight percent of polybutylene(succinate-co-adipate) (“PBSA”). Preferably the first polymer is selected from the group consisting of polyvinyl chloride, polylactic acid, polyhydroxy alkanoates, and mixtures thereof. A method for making the composition is also disclosed. 1. A polymeric composition comprising:from about 40 to about 99 weight percent of a first polymer which comprises polyhydroxy alkanoates; andfrom about 1 to about 60 weight percent of polybutylene(succinate-co-adipate) (“PBSA”).2. (canceled)3. The polymeric composition of claim 1 , wherein the PBSA has a weight average molecular weight from about 50 claim 1 ,000 to about 200 claim 1 ,000.4. The polymeric composition of claim 1 , wherein the PBSA has a weight average molecular weight from about 80 claim 1 ,000 to about 120 claim 1 ,000.5. The polymeric composition of claim 1 , wherein the PBSA has a viscosity from about 15 claim 1 ,000 to about 40 claim 1 ,000 centipoise at a temperature of about 215° C.6. The polymeric composition of claim 1 , wherein the PBSA has a melting point from about 20° C. to about 75° C.7. The polymeric composition of claim 1 , wherein the PBSA has a melting point from about 25° C. to about 40° C.8. The polymeric composition of claim 1 , wherein the PBSA comprises:from about 40 to about 60 mole percent moieties derived from 1,4-butanediol,from about 10 to about 50 mole percent moieties derived from succinic acid, andfrom about 10 to about 50 mole percent moieties derived from adipic acid.9. The polymeric composition of claim 1 , wherein the composition comprises from about 1 to about 10 weight percent of the PBSA.10. The polymeric composition of claim 1 , wherein the composition comprises from about 50 to about 60 weight percent of the PBSA.11. The polymeric composition of claim 1 , wherein the composition further comprises at least one ...

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Номер записи: 41
19-01-2017 дата публикации

Modified conjugated diene-based polymer, preparation method therefor, and rubber composition containing same

Номер: US20170015761A1
Автор: Hae-Sung Sohn, He-Seung Lee, No-Ma Kim
Принадлежит: LG Chem Ltd

Disclosed are a modified conjugated diene-based polymer represented by specific Chemical Formula, a method of preparing the same, and a rubber composition including the same.

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Номер записи: 42
19-01-2017 дата публикации

CYANINE COLORING COMPOSITION

Номер: US20170015765A1
Автор: HORIE Tomoaki, SHIDA Yukihiko, SUZUKI Katsufumi
Принадлежит: WAKO PURE CHEMICAL INDUSTRIES, LTD.

It is an object of the present invention to provide a cyanine-based coloring composition having higher heat resistance, as compared with a conventional coloring composition. The present invention relates to a compound represented by the following general formula (1), a polymer having a monomer unit derived from the compound, along with a coloring composition, a coloring composition for a color filter, and a colored resin comprising the above-described compound or the above-described polymer. 2. The compound according to claim 1 , wherein the electron-withdrawing substituent in An is a halogen atom.3. The compound according to claim 1 , wherein the electron-withdrawing substituent in An is a fluorine atom.4. The compound according to claim 1 , wherein An is a quaternary boron anion.5. The compound according to claim 1 , wherein An is a tetrakis(perfluorophenyl)borate anion.7. The polymer according to claim 6 , wherein the electron-withdrawing substituent in An is a halogen atom.8. The polymer according to claim 6 , wherein the electron-withdrawing substituent An is a fluorine atom.9. The polymer according to claim 6 , wherein An is a quaternary boron anion.10. The polymer according to claim 6 , wherein An is a tetrakis(perfluorophenyl)borate anion.11. The polymer according to claim 6 , wherein the polymer is a copolymer.13. A coloring composition comprising the compound according to .14. A coloring composition for a color filter comprising the compound according to .15. A colored resin comprising the compound according to .16. A coloring composition comprising the polymer according to .17. A coloring composition for a color filter comprising the polymer according to .18. A colored resin comprising the polymer according to . The present invention relates to a cyanine-based coloring compound; a polymer having a monomer unit derived from the compound; and a coloring composition comprising the polymer.As a method for forming a color pixel in manufacturing a color filter ...

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Номер записи: 43
19-01-2017 дата публикации

Process control for long chain branching control in polyethylene production

Номер: US20170015768A1
Автор: John H. Moorhouse, Kevin J. Cann, Mark G. Goode, Thomas Oswald, Wesley R. Mariott
Принадлежит: Univation Technologies Llc

Polymerization process control methods for making polyethylene are provided. The process control methods include performing a polymerization reaction in a polymerization reactor to produce the polyethylene, where ethylene, and optionally one or more comonomers, in the polymerization reaction is catalyzed by an electron donor-free Ziegler-Natta catalyst and an alkyl aluminum co-catalyst. A melt flow ratio (I 21 /I 2 ) of the polyethylene removed from the polymerization reactor is measured and an amount of long chain branching (LCB) of the polyethylene from the polymerization reactor is controlled by adjusting a weight concentration of the alkyl aluminum co-catalyst present in the polymerization reactor. In addition, an electron donor-free Ziegler-Natta catalyst productivity of the polyethylene being produced in the polymerization reactor is measured from which the amount of LCB of the polyethylene from the polymerization reactor is determined using the measured electron donor-free Ziegler-Natta catalyst productivity and a predetermined relationship between the electron donor-free Ziegler-Natta catalyst productivity and the LCB.

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Номер записи: 44
19-01-2017 дата публикации

CATALYST FOR OLEFIN POLYMERIZATION AND CO-POLYMNERIZATION AND A METHOD FOR OLEFIN POLYMERIZATION AND CO-POLYMERIZATION WITH USING THE SAME

Номер: US20170015770A1
Автор: PARK Joon Ryeo, YANG Chun Byung
Принадлежит:

The provided is an olefin (co)polymerization catalyst with an excellent catalyst activity, wherein the catalyst component is prepared by using a metallocene compound and titanocene compound or a half-titanocene compound so as to provide polyolefins having a high molecular weight and a low melt index, and also a method for olefin (co)polymerization using said catalyst. 2. The catalyst according to claim 1 , wherein the supporting of the step (1) is conducted by adding a solution obtained by dissolving the metallocene compound together with the titanocene compound or half-titanocene compound in aluminoxane solution to a support slurry claim 1 , and stirring the mixture.3. The catalyst according to claim 1 , wherein the supporting of the step (1) is conducted by adding aluminoxane to a support slurry and stirring the mixture so as to obtain an aluminoxane supported support slurry claim 1 , and adding thereto the metallocene compound and the titanocene compound or half-titanocene compound and stirring the mixture.4. The catalyst according to claim 1 , wherein the support is silica having the average particle size of 10-250 μm; micropores of which average diameter is 50-500 Å and volume is 0.1-10 ml/g; and the surface area of 5-1000 m/g.5. The catalyst according to claim 1 , wherein the aluminoxane is selected from linear aluminoxane oligomers and cyclic aluminoxane oligomers.6. A method for polymerizing olefins or copolymerizing olefin with comonomer(s) by using a catalyst according to any one of to . The present invention relates to a catalyst for olefin (co)polymerization and a method for olefin (co)polymerization using the same. Specifically, the present invention relates to an olefin (co)polymerization catalyst with an excellent catalyst activity, wherein the catalyst component is prepared by using a metallocene compound and titanocene compound or a half-titanocene compound so as to provide a polyolefin having a high molecular weight and a low melt index, and to a ...

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Номер записи: 45
19-01-2017 дата публикации

VINYLIDENE FLUORIDE COPOLYMER AND PREPARATION METHOD THEREFOR

Номер: US20170015771A1
Автор: Li Bin, Wang Xianrong, YU Jinlong, Zhang Tingjian
Принадлежит:

Provided in the present invention is a vinylidene fluoride copolymer. Same is acquired via a polymerization reaction taking place at conditions of 30-100° C. and 2-7 MPa with vinylidene fluoride, tetrafluoroethylene, and perfluorinated dioxole or C1-4 alkoxy-substituted perfluorinated dioxole as raw materials, with an initiator added into an emulsion consisting of water, fluorinated emulsifier, a chain transfer agent, a pH regulator, and an antifouling agent, and then via steps of separation, purification, refinement, condensation, washing, drying, and granulation, where the molar ratio of vinylidene fluoride, tetrafluoroethylene, and perfluorinated dioxole or C1-4 alkoxy-substituted perfluorinated dioxole is 13-17:2-4:1-3. The vinylidene fluoride copolymer of the present invention provides excellent transparency, flexibility, and solubility, is widely applicable in optical apparatus such as lenses, and is for use in specialty films in the fields of solar panels and of capacitors as a fuel cell membrane, a transparent and tough coating, and a large-sized blown object. 1. A vinylidene fluoride copolymer , wherein the vinylidene fluoride copolymer is synthesized by polymerizing vinylidene fluoride , tetrafluoroethylene , and perfluorinated dioxole or C1-4 alkoxy-substituted perfluorinated dioxole in a molar ratio of 13-17:2-4:1-3.2. The vinylidene fluoride copolymer of claim 1 , wherein the C1-4 alkoxy-substituted perfluorinated dioxole is perfluorinated dimethyl dioxole.3. The vinylidene fluoride copolymer of claim 1 , wherein the vinylidene fluoride copolymer has a melt point in a range of 100-150° C. claim 1 , and has a melt flow index of 0-60 g/10 min claim 1 , preferably 2.1-10 g/10 min claim 1 , at a temperature of 230° C. and under a load of 5 kg.4. A preparation method of the vinylidene fluoride copolymer of claim 3 , wherein the vinylidene fluoride copolymer is prepared by performing a polymerization reaction by using vinylidene fluoride claim 3 , ...

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Номер записи: 46
19-01-2017 дата публикации

ADHESIVE COMPOSITION

Номер: US20170015875A1
Автор: CHOI Han Young, JANG Ju Yeol
Принадлежит:

An adhesive composition includes0 an acryl copolymer having a carboxyl group, and a silane compound represented by Formula 1 or 2, thereby it is possible to exhibit excellent initial adhesiveness and adhesive durability under severe conditions, and prevent the substrate from being torn due to a decrease in adhesiveness by water applied thereto, and the adhesive from remaining on the substrate during peeling-off the adhesive layer, as well as after drying, the adhesive layer may exhibit favorable adhesiveness again, thus being used for re-bonding. 2. The adhesive composition according to claim 1 , wherein the acryl copolymer is prepared by polymerizing monomers including 1 wt. % or more of an ethylenically unsaturated monomer having a carboxyl group to a total weight of the monomers.3. The adhesive composition according to claim 1 , wherein the acryl copolymer is prepared by polymerizing monomers including 2.5 to 8 wt. % of an ethylenically unsaturated monomer having a carboxyl group to a total weight of the monomers.5. The adhesive composition according to claim 1 , wherein the silane compound is included in an amount of 0.01 to 5 wt. parts to 100 wt. parts of the acryl copolymer.6. The adhesive composition according to claim 1 , further comprising a cross-linking agent selected from a group consisting of isocyanate claim 1 , epoxy claim 1 , metal chelate claim 1 , oxazoline and poly-functional acrylate-based compounds.7. An adhesive sheet comprising an adhesive layer formed using the adhesive composition according to .8. A polarizing plate comprising an adhesive layer formed using the adhesive composition according to claim 1 , on at least one surface of the polarizing plate.9. An image display device comprising the polarizing plate according to . 1. Field of the InventionThe present invention relates to an adhesive composition.2. Description of the Related ArtA liquid crystal display device generally consists of liquid crystal cells and a polarizing plate, mostly ...

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Номер записи: 47
18-01-2018 дата публикации

POLYOLEFIN FOR PREPARING FIBER AND FIBER COMPRISING THE SAME (As Amended)

Номер: US20180016370A1
Автор: CHOI Yi Young, KIM Se Young, Kim Sun Mi, Lee Ki Soo, LEE Seung Mi, SONG Eun Kyoung, SUN Soon Ho, YOU Young Suk
Принадлежит:

The present invention relates to polyolefin powder for preparing fiber, and fiber comprising the same. According to the present invention, provided is polyolefin, which exhibits a high molecular weight range and narrow molecular weight distribution and in which the formation of a gel deteriorating the quality of fiber is reduced. Therefore, by using the polyolefin, the present invention exhibits molecular weight, density and narrow molecular weight distribution, which are equivalent to those of conventional polyolefin, but the number of gels having a large particle diameter is remarkably reduced, and therefore, the present invention can provide fiber having excellent tenacity and tensile strength half-life. 1. Polyolefin powder for preparing fiber:wherein a weight average molecular weight is 100,000 to 300,000 g/mol;wherein a molecular weight distribution is 2.0 to 3.2; and{'sup': '2', 'when the polyolefin powder is manufactured into a casting film at 190° C., the number of gels with a particle diameter of 250 μl or more is less than 2,000 per unit area (m).'}2. The polyolefin powder according to claim 1 , wherein a melt index (MI:190° C. claim 1 , 2.16 kg) is 0.1 to 2.0 g/10 min.3. The polyolefin powder according to claim 1 , wherein a density is 0.945 to 0.955 g/cm.4. The polyolefin powder according to claim 1 , wherein the polyolefin powder is prepared by the polymerization of olefin monomers in the presence of a single metallocene supported catalyst.5. A fiber comprising the polyolefin powder of .6. The fiber according to claim 5 , wherein a tenacity measured according to ASTM D 638 is 13 to 20 gf/denier.7. The fiber according to claim 5 , wherein a tensile strength half-life measured for UV by AATCC method #16 claim 5 , after measuring tensile strength according to ASTM D 638 claim 5 , is 250 to 350 hours.8. The fiber according to claim 5 , wherein the fiber is used as monofilament or multifilament products. This application claims the benefit of Korean Patent ...

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Номер записи: 48
18-01-2018 дата публикации

LOW DENSITY POLYETHYLENE COPOLYMER HAVING EXCELLENT FILM PROCESSABILITY AND TRANSPARENCY

Номер: US20180016372A1
Автор: Cho Sol, Hong Dae Sik, Kwon Heon Yong, Kwon Oh Joo, Lee Ki Soo, LEE Myung Han, Park Sung Hyun
Принадлежит: LG CHEM, LTD.

The low density polyethylene copolymer according to the present invention is characterized in that as LCB (Long Chain Branch) is introduced into LLDPE, the melt strength is remarkably high even without blending with LDPE, and thus it can be advantageously applied to blown film processing and the like. 1. A low density polyethylene copolymer which satisfies the following conditions:a melt index (MI) of 0.5 to 1.5 g/10 min as measured according to ASTM D1238 (2.16 kg, 190° C.),{'sup': '3', 'a density 0.910 to 0.930 g/cmas measured according to ASTM D792,'}a weight average molecular weight of 91,000 to 150,000, anda melt strength (MS) of 40 to 100 mN.2. The low density polyethylene copolymer according to claim 1 ,{'sub': 0', '500, 'wherein the low density polyethylene copolymer has η(zero shear viscosity) of 140,000 P (poise) or more, and η(viscosity measured at 500 rad/s) of 7,000 P (Poise) or less.'}3. The low density polyethylene copolymer according to claim 1 ,wherein the low density polyethylene copolymer has Mz (Z-average molecular weight) of 220,000 to 380,000.5. The low density polyethylene copolymer according to claim 4 , which satisfying the following Mathematical Formula 2:{'br': None, 'sup': 5', '2.8', '0.25', '5', '2.8', '0.25, 'sub': M', 'M, '(1.6×(Mz/10)+26×(α)) Подробнее

Номер записи: 49
17-01-2019 дата публикации

TIRE UNDERTREAD

Номер: US20190016178A1
Автор: Piffard Olivier, Stubblefield Raymond
Принадлежит:

Rubber compositions that are particularly suitable for the undertread for a tire tread, such rubber compositions including a functionalized polybutadiene rubber and a second rubber component such as a styrene butadiene copolymer, natural rubber, another polybutadiene or other diene rubber or combinations thereof. Such rubber compositions are reinforced with a carbon black reinforcing filler that may be characterized as a low-surface area, high structure carbon black having a nitrogen surface area of between 15 m/g and 25 m/g and a COAN of between 65 ml/100 g and 85 ml/100 g. 1. A tread for a tire that comprises an undertread , the undertread formed from a rubber composition that is based upon a cross-linkable rubber composition , the cross-linkable composition comprising , per 100 parts by weight of rubber (phr):at least 20 phr of a functionalized polybutadiene rubber having a functional group that is capable of interacting with carbon black;between 0 phr and 80 phr of a second rubber component;{'sup': 2', '2, 'a low-surface area, high structure carbon black having a nitrogen surface area of between 15 m/g and 25 m/g and a COAN of between 65 ml/100 g and 85 ml/100 g; and'}a curing system.2. The tread of claim 1 , wherein the functionalized polybutadiene rubber is a tin coupled end-functionalized polybutadiene rubber.3. The tread of claim 2 , wherein the polybutadiene rubber is end-functionalized with an amine group.4. The tread of claim 1 , wherein the cross-linkable rubber composition comprises between 40 phr and 80 phr of the carbon black.5. The tread of claim 1 , wherein an OAN of the carbon black is between 100 ml/100 g and 150 ml/100 g.6. The tread of claim 5 , wherein an iodine number of the carbon black is between 10 mg/g and 25 mg/g.7. The tread of claim 6 , wherein the cross-linkable rubber composition comprises between 40 phr and 60 phr of the functionalized polybutadiene rubber.8. The tread of claim 1 , wherein the second rubber component is selected from ...

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Номер записи: 50
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: 51
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: 52
17-01-2019 дата публикации

Process control for long chain branching control in polyethylene production

Номер: US20190016835A1
Автор: John H. Moorhouse, Kevin J. Cann, Mark G. Goode, Thomas Oswald, Wesley R. Mariott
Принадлежит: Univation Technologies Llc

Polymerization process control methods for making polyethylene are provided. The process control methods include performing a polymerization reaction in a polymerization reactor to produce the polyethylene, where ethylene, and optionally one or more comonomers, in the polymerization reaction is catalyzed by an electron donor-free Ziegler-Natta catalyst and an alkyl aluminum co-catalyst. A melt flow ratio (I 21 /I 2 ) of the polyethylene removed from the polymerization reactor is measured and an amount of long chain branching (LCB) of the polyethylene from the polymerization reactor is controlled by adjusting a weight concentration of the alkyl aluminum co-catalyst present in the polymerization reactor. In addition, an electron donor-free Ziegler-Natta catalyst productivity of the polyethylene being produced in the polymerization reactor is measured from which the amount of LCB of the polyethylene from the polymerization reactor is determined using the measured electron donor-free Ziegler-Natta catalyst productivity and a predetermined relationship between the electron donor-free Ziegler-Nana catalyst productivity and the LCB.

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Номер записи: 53
16-01-2020 дата публикации

ACRYLIC POLYMER PARTICLES, PRODUCTION PROCESS THEREFOR, INK COMPOSITION, AND COATING COMPOSITION

Номер: US20200017613A1
Автор: FUKUOKA Hiroyuki, KIURA Masaaki, MORIYA Makoto, MUKUDA Takahiro, Saito Yoshikazu, SERIZAWA Masashi
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

Particles of an acrylic polymer comprising a constituent unit (A) derived from methyl methacrylate and a constituent unit (B) derived from a (meth)acrylic acid alkyl ester in which the alkyl group has 2 to 8 carbon atoms, wherein the particles having electrostatic buildup inhibition rate of 90 to 99.9° as obtained by a specific method. 139-. (canceled)41. The particles of an acrylic polymer according to claim 40 , wherein a sodium element amount in the particles of an acrylic polymer is 3.5 to 50 ppm.42. The particles of an acrylic polymer according to claim 41 , wherein the sodium element amount in the particles of an acrylic polymer is 3.5 to 30 ppm.43. The particles of an acrylic polymer according to claim 40 , wherein the particles have a mass average particle diameter of 100 to 1000 μm.44. The particles of an acrylic polymer according to claim 40 , further comprising a constituent unit (C) derived from α claim 40 ,β-unsaturated carboxylic acid.45. Particles of an acrylic polymer claim 40 , comprising a constituent unit (A) derived from methyl methacrylate and a constituent unit (B) derived from (meth)acrylic acid alkyl ester in which the alkyl group has 2 to 8 carbon atoms claim 40 , the particles having a sodium element amount of 3.5 to 50 ppm.46. The particles of an acrylic polymer according to claim 45 , wherein the sodium element amount in the particles of an acrylic polymer is 3.5 to 30 ppm.47. The particles of an acrylic polymer according to claim 45 , wherein the particles have a mass average particle diameter of 100 to 1000 μm.48. The particles of an acrylic polymer according to claim 45 , further comprising a constituent unit (C) derived from α claim 45 ,β-unsaturated carboxylic acid.49. A process for producing particles of an acrylic polymer according to claim 40 , the process comprising a step of washing the acrylic polymer obtained by suspension polymerization so as to have a sodium element amount of 3.5 to 50 ppm.50. The process for producing ...

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Номер записи: 54
16-01-2020 дата публикации

Fiber reinforced polypropylene composite

Номер: US20200017671A1
Автор: Béla Pukánszky, Claudia PRETSCHUH, Janos MOCZO, Karoly Renner, Lukas SOBCZAK, Michael Jerabek, Stefan Hochradi, Thomas LUMMERSTORFER, Wolfgang Stockreiter
Принадлежит: Borealis AG

The present invention relates to a new composite comprising glass or carbon fibers and polymer-based fibers as well as to a process for the preparation of the composite and molded articles made from said composite.

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Номер записи: 55
24-01-2019 дата публикации

POLYOLEFIN ELASTOMER COMPOSITIONS AND METHODS OF MAKING THE SAME

Номер: US20190021441A1
Автор: Gopalan Krishnamachari, Herd-Smith Roland, Ji Gending, Lenhart Robert J.
Принадлежит: COOPER-STANDARD AUTOMOTIVE INC.

An elastomeric article is provided that includes a composition having a silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm. The elastomeric article can exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.). The silane-crosslinked polyolefin elastomer can include a first polyolefin having a density less than 0.86 g/cm, a second polyolefin having a crystallinity less than 40%, a silane crosslinker, a grafting initiator, and a condensation catalyst. 1. A silane-crosslinked polyolefin elastomer blend comprising:{'sup': '3', 'a first polyolefin having a density less than 0.86 g/cm;'}a second polyolefin having a percent crystallinity less than 40%;a silane crosslinker,{'sup': '3', 'wherein the silane-crosslinked polyolefin elastomer blend exhibits a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.) and wherein the silane-crosslinked polyolefin elastomer blend has a density less than 0.90 g/cm.'}2. The silane-crosslinked polyolefin elastomer blend of further comprising a microencapsulated foaming agent.3. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the density is less than 0.70 g/cm.4. The silane-crosslinked polyolefin elastomer blend of further comprising a foaming agent.5. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the density is less than 0.60 g/cm.6. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the compression set is from about 15.0% to about 35.0% claim 1 , as measured according to ASTM D 395 (22 hrs @ 70° C.).7. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the first polyolefin comprises an ethylene-octene copolymer from about 60 wt % to about 97 wt %.8. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the second polyolefin comprises a polypropylene homopolymer from about 10 wt % to about 35 wt % and/or ...

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Номер записи: 56
26-01-2017 дата публикации

Catalysts for (e)-selective olefin metathesis

Номер: US20170022231A1
Автор: Choon Woo Lee, Pablo E. GUZMAN, Robert H. Grubbs, T. Patrick MONTGOMERY, Tonia S. AHMED
Принадлежит: California Institute of Technology CalTech

This invention relates generally to olefin metathesis catalyst compounds, to the preparation of such compounds, and the use of such catalysts in the metathesis of olefins and olefin compounds, more particularly, in the use of such catalysts in (E)-selective olefin metathesis reactions. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry.

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Номер записи: 57
26-01-2017 дата публикации

AMINOSILANE TERMINAL MODIFIER TO WHICH FUNCTIONAL GROUP HAS BEEN INTRODUCED, METHOD FOR PRODUCING TERMINAL-MODIFIED CONJUGATED DIENE POLYMER USING THE AMINOSILANE TERMINAL MODIFIER, AND TERMINAL-MODIFIED CONJUGATED DIENE POLYMER

Номер: US20170022297A1
Автор: Choi Seung-Ho, Choi Won-Mun, Kim Cheol-Jae, Kim Min-Soo
Принадлежит: LG CHEM, LTD.

Disclosed are an end-modified conjugated diene-based polymer configured such that the end of a conjugated diene-based polymer is coupled with an aminosilane-based end modifier, and a method of preparing the same. 3. The end-modified conjugated diene-based polymer of claim 1 , wherein the end-modified conjugated diene-based polymer has a number average molecular weight (Mn) of 1 claim 1 ,000 to 2 claim 1 ,000 claim 1 ,000 g/mol.4. The end-modified conjugated diene-based polymer of claim 1 , wherein the end-modified conjugated diene-based polymer comprises 1 to 60 wt % of an aromatic vinyl monomer based on 100 wt % in total of a conjugated diene monomer and the aromatic vinyl monomer.7. The method of claim 5 , wherein the organometallic compound is used in an amount of 0.01 to 10 mmol based on 100 g in total of the monomer.8. The method of claim 5 , wherein a molar ratio of the organometallic compound and the compound represented by Chemical Formula 1 ranges from 1:0.1 to 1:10.9. The method of claim 5 , wherein the polymerizing in a) is performed with additional use of a polar additive.10. The method of claim 9 , wherein the polar additive is added in an amount of 0.001 to 10 g based on 1 mmol in total of the organometallic compound. This application claims the benefit of Korean Patent Application Nos. KR 10-2014-0186008, filed Dec. 22, 2014, and KR 10-2015-0104520, filed Jul. 23, 2015, which are hereby incorporated by reference in their entirety into this application.The present invention relates to a functionalized aminosilane-based end modifier, a method of preparing an end-modified conjugated diene-based polymer using the same, and an end-modified conjugated diene-based polymer prepared thereby.Recently, in the vehicle industry, the demand for the durability, stability and fuel economy of vehicles is continuously increasing, and much effort is directed to satisfying the demand.In particular, many attempts have been made to enhance the properties of rubber, as a ...

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Номер записи: 58
26-01-2017 дата публикации

PRODUCTION METHOD FOR OLEFIN-BASED POLYMER, OLEFIN POLYMERIZATION CATALYST, AND OLEFIN-BASED POLYMER

Номер: US20170022306A1
Автор: Nishida Masayuki, SAMEJIMA Kanako
Принадлежит: IDEMITSU KOSAN CO., LTD.

Provided is a production method for an olefin-based polymer, including polymerizing an olefin raw material using (A) a transition metal compound, (B) a boron compound capable of forming an ion pair with the component (A), (C) an organoaluminum compound, and (D) water, a molar ratio [(D)/(A)] of a molar quantity of the component (D) to a molar quantity of a transition metal in the component (A) being 5 or more and 10,000 or less. 1. A production method for an olefin-based polymer , comprising polymerizing an olefin raw material using the following components (A) to (D) , a molar ratio [(D)/(A)] of a molar quantity of the component (D) to a molar quantity of a transition metal in the component (A) being 5 or more and 10 ,000 or less:(A) a transition metal compound;(B) a boron compound capable of forming an ion pair with the component (A);(C) an organoaluminum compound, and(D) water.2. The production method for an olefin-based polymer according to claim 1 , wherein the olefin raw material or a polymerization solvent contains (N) a nonpolymerizable unsaturated hydrocarbon.4. The production method for an olefin-based polymer according to claim 1 , wherein a molar ratio [(D)/(C)] of the molar quantity of the component (D) to a molar quantity of an aluminum atom in the component (C) is more than 0 and 1 or less.5. The production method for an olefin-based polymer according to claim 2 , wherein a molar ratio [(N)/(A)] of a molar quantity of the component (N) to a molar quantity of a transition metal in the component (A) is 500 or more.6. The production method for an olefin-based polymer according to claim 1 , further comprising mixing the component (D) during the polymerizing the olefin raw material in presence of a catalyst obtained by bringing the component (A) claim 1 , the component (B) claim 1 , and the component (C) into contact with each other claim 1 , so that the molar ratio [(D)/(A)] of the molar quantity of the component (D) and the molar quantity of the ...

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Номер записи: 59
26-01-2017 дата публикации

Process for Forming Polyolefins

Номер: US20170022307A1
Автор: Joel A. Mutchler, Scott E. Kufeld
Принадлежит: Chevron Phillips Chemical Co LP

Processes of forming polyolefins are described herein. One or more specific embodiments of the processes generally include introducing olefin monomer selected from C 2 -C 3 olefins into a first reaction zone under first polymerization conditions to form a first polyolefin; withdrawing a transfer effluent from the first reaction zone, the transfer effluent including first polyolefin and unreacted olefin monomer; introducing the transfer effluent, a comonomer selected from C 4 -C 8 olefins, and additional olefin monomer to a second reaction zone under second polymerization conditions to form a second reactor product; maintaining an essentially constant comonomer:olefin monomer ratio in the second reaction zone; and withdrawing at least a portion of the second reactor product, wherein the second reactor product includes a bimodal polyolefin.

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Номер записи: 60
26-01-2017 дата публикации

Propylene-Based Impact Copolymers

Номер: US20170022308A1
Автор: Bauch Christopher G., Edwards Todd S., Lin Chon-Yie, Meka Prasadarao
Принадлежит:

A propylene-based impact copolymer (ICP) and composition including the ICP, the ICP comprising a polypropylene homopolymer and within the range of from 10 wt % to 45 wt % of propylene copolymer based on the weight of the ICP, wherein the copolymer comprises from 20 wt % to 44 wt % ethylene, 1-butene, 1-hexene and/or 1-octene derived units and from 80 to 60 wt % propylene-derived units based on the weight of the propylene copolymer, the propylene-based impact copolymer having a Melt Flow Rate (230° C./2.16 kg) within the range of from 10 g/10 mm to 50 g/10 mm and an Elongation at Break of greater than 70%. 1. A propylene-based impact copolymer (ICP) comprising a polypropylene homopolymer and within the range of from 10 wt % to 45 wt % of propylene copolymer based on the weight of the ICP , wherein the propylene copolymer comprises from 20 wt % to 44 wt % ethylene , 1-butene , 1-hexene and/or 1-octene derived units and from 80 to 56 wt % propylene-derived units based on the weight of the propylene copolymer , the propylene-based impact copolymer having a Melt Flow Rate (230° C./2.16 kg) within the range of from 10 g/10 mm to 50 g/10 mm and an Elongation at Break of greater than 60%.2. The propylene-based impact copolymer of claim 1 , wherein the polypropylene homopolymer forms a continuous phase and the propylene copolymer forms rubber domains having an average size within the range of from 0.40 μm to 0.90 μm.3. The propylene-based impact copolymer of claim 1 , wherein the impact copolymer is reactor grade granules having an average particle size within the range of from 1200 μm to 2800 μm and produced at a rate greater than 30 claim 1 ,000 lbs/hr (13 claim 1 ,620 kg/hr).4. The propylene-based impact copolymer of claim 1 , having a Gloss (60°) within a range of from 40 to 90% (ASTM D523).5. The propylene-based impact copolymer of claim 1 , having a Heat Deflection Temperature within the range of from 70° C. to 125° C.6. The propylene-based impact copolymer of claim 1 ...

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Номер записи: 61
26-01-2017 дата публикации

Lightweight environment-friendly polypropylene composite floor and preparation process thereof

Номер: US20170022388A1
Автор: Mingqi Zhang
Принадлежит: Xinming (lutai) Technology Co Ltd

The present invention provides is a lightweight environment-friendly polypropylene composite floor comprising, from top to bottom: 1) a scratch-resistant coating layer, 2) a super-transparent wear-resistant layer, 3) a decorative layer, 4) a first substrate layer, 5) a second substrate layer, 6) a bottom connective layer, and optionally 7) a back adhesive layer. Also provided is a preparation process of the composite floor.

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Номер записи: 62
25-01-2018 дата публикации

Modified liquid diene rubber and resin composition containing modified liquid diene rubber

Номер: US20180022835A1
Автор: Kei Hirata, Satoshi Motoda
Принадлежит: Kuraray Co Ltd

There are provided a modified liquid diene rubber that can be used for a curable resin composition and a resin composition containing the modified liquid diene rubber. The curable resin composition containing the modified liquid diene rubber has a much higher curing rate than that in the related art, and the resulting cured product has excellent mechanical properties, transparency, and heat resistance. Produced are a modified liquid diene rubber and a resin composition containing the modified liquid diene rubber. The modified liquid diene rubber includes a modifying group (p) partly containing a (meth)acryloyl group therein and a monomer unit (a1) derived from a conjugated diene compound. A carbon-carbon double bond derived from the conjugated diene compound has a hydrogenation rate of 30 to 95 mol %, and the modifying group (p) has a functional group equivalent weight of 700 to 20,000 g/eq.

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Номер записи: 63
25-01-2018 дата публикации

MULTI-REACTOR SLURRY POLYMERIZATION PROCESSES WITH HIGH ETHYLENE PURITY

Номер: US20180022842A1
Автор: Carvajal Rodrigo, Damm Elke, Kuehl Reinhard, Meier Gerhardus, Pyman Phil
Принадлежит: BASELL POLYOLEFINE GMBH

A slurry polymerization process for the preparation of polyethylene in a reactor cascade of two or more polymerization reactors including the steps of feeding to a polymerization reactor amounts of ethylene, of a Ziegler catalyst, of fresh aluminum alkyl and of a diluent; feeding the slurry product withdrawn from the polymerization reactor to a second polymerization reactor; and feeding additional amounts of ethylene and of diluent wherein the ethylene is first passed through an ethylene purification unit, which reduces at least the concentration of carbon monoxide, carbon dioxide, oxygen, acetylene and water contained in the ethylene, before it is fed to the two or more polymerization reactors of the reactor cascade. 2. The process of claim 1 , further comprising the steps of: (i) the second slurry product,', '(ii) a third amount of ethylene, and', '(iii) a third amount of diluent, '(g) to a third polymerization reactor, feeding a third set of components comprising'}h) contacting the third set of components in the third polymerization reactor at a reactor temperature from about 60° C. to about 95° C. and a reactor pressure from about 0.15 MPa to about 3 MPa, thereby forming an additional amount of polyethylene in the slurry product comprising particulate polyethylene and a suspension medium; and(i) withdrawing the third slurry product from the third polymerization reactor.3. (canceled)4. The process of claim 1 , wherein the ethylene fed to the polymerization reactors has a carbon monoxide concentration of at most about 0.09 ppm by volume.5. The process of claim 1 , wherein the ethylene fed to the polymerization reactors has a carbon dioxide concentration of at most about 0.9 ppm by volume.6. The process of claim 1 , wherein the ethylene fed to the polymerization reactors has an oxygen concentration of at most about 0.9 ppm by volume.7. The process of claim 1 , wherein the ethylene fed to the polymerization reactors has an acetylene concentration of at most about 2. ...

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Номер записи: 64
25-01-2018 дата публикации

ETHYLENE/1-BUTENE COPOLYMERS WITH ENHANCED RESIN PROCESSABILITY

Номер: US20180022844A1
Автор: Ker Victoria, Lam Patrick, Quaiattini Robert
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

Ethylene/1-butene copolymers made with a single site catalyst system have high melt strength and good processability. 17-. (canceled)8. A process for making an ethylene/1-butene copolymer , the process comprising polymerizing ethylene and 1-butene with a single site catalyst system in a gas phase polymerization reactor , wherein the ethylene/1-butene copolymer has density of from 0.912 to 0.94 g/cm , a melt index (I) of from 0.5 to 10 g/10 min , a melt flow ratio (I/I) of from 20 to 35 , a molecular weight distribution (M/M) of from 2.0 to 4.5 , and an accelerated haul-off melt strength (σ) as determined by Rosand capillary rheometry at 190° C. , of at least 3.0 cN.9. The process of wherein the single site catalyst system comprises a phosphinimine catalyst claim 8 , a cocatalyst and an inert support.10. The process of wherein the phosphinimine catalyst has the formula:{'br': None, 'sup': '£', 'i': 't', 'sub': 3', '2, '(1-R-Indenyl)Ti(N═P(-Bu))X;'}{'sup': '£', 'wherein R is a substituted or unsubstituted alkyl group, a substituted or an unsubstituted aryl group, or a substituted or unsubstituted benzyl group, wherein substituents for the alkyl, aryl or benzyl group are selected from alkyl, aryl, alkoxy, aryloxy, alkylaryl, arylalkyl and halide substituents; and wherein X is an activatable ligand.'}1113-. (canceled)14. A process for making an ethylene/1-butene copolymer claim 9 , the process comprising polymerizing ethylene and 1-butene with a single site catalyst system in a gas phase polymerization reactor claim 9 , wherein the ethylene/1-butene copolymer has density of from 0.912 to 0.94 g/cm claim 9 , a melt index (I) of from 0.5 to 10 g/10 min claim 9 , a melt flow ratio (I/I) of from 20 to 35 claim 9 , a molecular weight distribution (M/M) of from 2.0 to 4.5 claim 9 , and which satisfies the following relationship:{'br': None, 'sub': 50', 'XO', '21', '2', 'w', 'n, 'sup': '3.0', 'i': a', 'I', '/I', 'M', '/M, '(CDBI/δ)≦6.5−5.7 log [(1.5()+())];'}{'sub': 50', 'XO, ...

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Номер записи: 65
25-01-2018 дата публикации

POLYMERIC PIEZOELECTRIC FILM AND MANUFACTURING METHOD THEREOF

Номер: US20180022895A1
Автор: KITAGAWA Toshihisa, ONISHI Katsuki, SATO Keisuke, Tanimoto Kazuhiro, TSUSHIMA Hiroaki
Принадлежит: Mitsui Chemicals, Inc.

A polymeric piezoelectric film, including a helical chiral polymer (A) having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, in which, in the film: a crystallinity given by a DSC method is from 20% to 80%; a standardized molecular orientation MORc is from 3.5 to 15.0 when a reference thickness measured by a microwave transmission-type molecular orientation meter is 50 μm; and when a direction parallel to a phase difference streak is a direction X, a direction perpendicular to the direction X and parallel to a main plane of a film is a direction Y, and the phase difference streak is evaluated by an evaluation method A, per a length of 1,000 mm in the direction Y, a number of phase difference streaks with an evaluation value of 60 or more is 0, and a sum of the evaluation values of phase difference streaks with an evaluation value of 20 or more is 1000 or less. 1. A polymeric piezoelectric film , comprising a helical chiral polymer (A) having a weight average molecular weight of from 50 ,000 to 1 ,000 ,000 and optical activity , wherein , in the film:a crystallinity given by a DSC method is from 20% to 80%;a standardized molecular orientation MORc is from 3.5 to 15.0 when a reference thickness measured by a microwave transmission-type molecular orientation meter is 50 μm; andwhen a direction parallel to a phase difference streak is a direction X, a direction perpendicular to the direction X and parallel to a main plane of a film is a direction Y, and the phase difference streak is evaluated by an evaluation method A, per a length of 1,000 mm in the direction Y, a number of phase difference streaks with an evaluation value of 60 or more is 0, and a sum of evaluation values of phase difference streaks with an evaluation value of 20 or more is 1000 or less, (a) with respect to the direction Y, acquiring in-plane phase difference data of a film at intervals of 0.143 mm to obtain an in-plane phase difference profile;', '(b) performing ...

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Номер записи: 66
24-01-2019 дата публикации

GOLF BALL INCORPORATING AT LEAST ONE LAYER OF PLASTICIZED NEUTRALIZED ACID POLYMER COMPOSITION CONTAINING LOW MOLECULAR WEIGHT ACID WAX(ES) AS SOLE ACID POLYMER COMPONENT AND LOW MOLECULAR WEIGHT NON-ACID WAX(ES) IN THE NON-ACID POLYMER COMPONENT

Номер: US20190022470A1
Автор: Binette Mark L., Blink Robert, Bulpett David A., Comeau Brian, Sullivan Michael J.
Принадлежит: ACUSHNET COMPANY

Golf ball comprising layer(s) comprised of plasticized neutralized acid polymer composition consisting of mixture of: (a) low molecular weight acid-containing wax(es); (b) non-acid-polymer(s) including at least one low molecular weight non-acid wax such as high density oxidized polyethylene homopolymers; ethylene maleic anhydride copolymers; polypropylene maleic anhydride copolymers; polypropylene homopolymers; ethylene-vinyl acetate copolymers; high density oxidized homopolymers; oxidized copolymers; polyethylene micronized waxes; polytetrafluoroethylene micronized waxes; emulsifiable low molecular weight non-acid waxes; non-emulsifiable low molecular weight non-acid waxes; and/or chemically modified low molecular weight non-acid waxes; (c) organic acid(s) or salt thereof; and (d) plasticizer(s). Molecular weight of each low molecular weight acid-containing wax is about 500 to 7000, or up to 30,000. Interactions between components (a), (b), (c) and (d) advantageously produce layer of ionomeric material having heat stability, processability, and well-retained durability, adhesion, CoR, compression and softer feel without need for blending high and low molecular weight acid-containing polymer(s). 1. A golf ball comprising at least one layer comprised of a plasticized neutralized acid polymer composition consisting of a mixture of: (a) at least one low molecular weight acid-containing wax; (b) at least one non-acid-polymer , of which at least one is a low molecular weight non-acid wax; (c) at least one organic acid or salt thereof; and (d) at least one plasticizer;wherein each low molecular weight acid-containing wax has a molecular weight of from about 500 to about 30,000;wherein the mixture contains at least 70 percent of neutralized acid groups; andwherein the mixture has a melt flow index of at least 0.5 g/10 min.2. The golf ball of claim 1 , wherein the low molecular weight non-acid wax is selected from the group consisting of: high density oxidized polyethylene ...

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Номер записи: 67
23-01-2020 дата публикации

Methods for Determining Transition Metal Compound Concentrations in Multicomponent Liquid Systems

Номер: US20200023331A1
Автор: BUCK Richard M., YANG Qing
Принадлежит:

Methods for simultaneously determining the concentrations of transition metal compounds in solutions containing two or more transition metal compounds are described. Polymerization reactor systems providing real-time monitoring and control of the concentrations of the transition metal components of a multicomponent catalyst system are disclosed, as well as methods for operating such polymerization reactor systems. 111-. (canceled)12. A polymerization reactor system comprising:(A) a reactor configured to contact a catalyst system with an olefin monomer and an optional olefin comonomer under polymerization reaction conditions to produce an olefin polymer;(B) a catalyst preparation vessel configured to contact a first transition metal compound, a second transition metal compound, an activator, and an optional co-catalyst to form the catalyst system; and(C) an analytical system configured to determine a first concentration of the first transition metal compound and a second concentration of the second transition metal compound in a solution comprising the first transition metal compound and the second transition metal compound present within the polymerization reactor system; wherein:the polymerization reactor system comprises a slurry reactor, a gas-phase reactor, a solution reactor, or a combination thereof.13. The reactor system of claim 12 , wherein the analytical system comprises an ultraviolet-visible spectrometer.14. The reactor system of claim 13 , wherein the analytical system further comprises a filter assembly configured to filter a sample of the solution comprising the first transition metal compound and the second transition metal compound before analysis by the ultraviolet-visible spectrometer.15. The reactor system of claim 12 , wherein the reactor system further comprises (D) a controller configured to control a first flow rate of the first transition metal compound and/or a second flow rate of the second transition metal compound into the reactor based ...

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Номер записи: 68
24-01-2019 дата публикации

CO-DELIVERY OF CHOLESTEROL LOWERING DRUGS AND NUTRACEUTICALS

Номер: US20190023824A1
Автор: Jusoh Mohd Zulkefeli Bin Mat, Nelson Alshakim, Piunova Victoria A., Sly Joseph
Принадлежит:

Star polymer occlusion complexes were prepared comprising i) an amphiphilic unimolecular star polymer having a crosslinked core covalently linked to 6 or more independent amphiphilic polymer arms, ii) a nutraceutical (such as coenzyme Q10), and iii) a cholesterol-lowering drug (such as simvastatin). An initial occlusion complex formed with the nutraceutical and the star polymer exhibited improved binding properties for the cholesterol-lowering drug, resulting in improved loading efficiencies for the cholesterol-lowering drug. The star polymer occlusion complexes have utility in the medical treatment of high blood cholesterol. 1. A loaded star polymer , comprising:a star polymer macromolecule, the star polymer comprising a crosslinked hydrophobic core covalently linked to a plurality of block polymer arms emanating from the core, wherein each arm comprises i) a hydrophobic first block linked to the core and ii) a peripheral second block linked to the first block, the second block comprising a repeat unit containing a sidechain tertiary amine group capable of undergoing protonation to form a hydrophilic tertiary ammonium ion;a cholesterol lowering drug selected from the group consisting of simvastatin, lovastatin, atorvastatin, fluvastatin, pitavastatin, pravastatin, and rosuvastatin, and combinations thereof; anda nutraceutical selected from the group consisting of ubiquinone (coenzyme Q10), menadione, duroquinone, idebenone, decylubiquinone, and combinations thereof; whereinthe star polymer, the cholesterol lowering drug, and the nutraceutical are bound together by non-covalent interactions, andthe loaded star polymer is water-dispersible.2. The loaded star polymer of claim 1 , wherein the loaded star polymer is capable of releasing the cholesterol lowering drug and the nutraceutical in water at pH 5-6.3. The loaded star polymer of claim 1 , wherein the cholesterol lowering drug is simvastatin.4. The loaded star polymer of claim 1 , wherein the nutraceutical is ...

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Номер записи: 69
24-01-2019 дата публикации

COPOLYMERS AND USES THEREOF

Номер: US20190023826A1
Автор: He Qiwei, MORALES John M., PHILBIN Michael Timothy, THOMAIDES John Socrates, VADILLO Damien Christian
Принадлежит:

The invention relates to a specific copolymer obtainable by co-polymerizing at least the following monomers: —more than 80 wt % of at least one bicyclic (meth)acrylate ester, —0.05 to 15% w/w styrene, and—optionally other ethylenically unsaturated monomers, as well as to the way to synthesize them and the use of such polymers to modify the rheology of a liquid in which they are soluble. 1. A copolymer comprising:83-99.95 wt % of the bicyclic (meth)acrylate esters (a),0.05 to 12 wt % of styrene (b), and0 to 19 wt % of ethylenically unsaturated monomers that are not monomer (a) or (b),up to a total of 100 wt %, wherein the weight percentages of the monomer are based on the total weight of all the monomers.3. A copolymer according to claim 1 , wherein the copolymer is a random co-polymer.6. A copolymer according to claim 1 , comprising a total of bicyclic (meth)acrylate ester and styrene in an amount of 90 wt % of the total monomer claim 1 , or more.7. A copolymer according of claim 6 , comprising a total of bicyclic (meth)acrylate ester and styrene in an amount of 95 wt % or more.8. A copolymer according to claim 7 , wherein the copolymer is produced from isobornyl methacrylate and styrene.9. A copolymer according to claim 1 , having a cloud point in fuel of 12.5° C. or lower.10. A copolymer according to claim 1 , having an average weight average molecular weight of from 100 claim 1 ,000 to 50 claim 1 ,000 claim 1 ,000 D.11. Additive package for fuels comprising a copolymer of .12. Method for the preparation of a copolymer of comprising the step of radically polymerizing the specified monomers.13. Method for the preparation of an additives package for fuel claim 1 , comprising the step of making a solution comprising a copolymer of and one or more other fuel additives.14. Use of a polymer or additive package according to claim 1 , for modifying the rheology of a fluid claim 1 , by dissolving said polymer into said fluid claim 1 , whereby said fluid is not a fuel for ...

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Номер записи: 70
24-01-2019 дата публикации

METHOD FOR PRODUCING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, AND POWDER

Номер: US20190023856A1
Автор: HAGI Keisuke, HOSOKAWA Kazutaka, Kato Taketo, KAWAHARA Kazuya, SUKEGAWA Masamichi, TANAKA Yuuji, TSUJI Masayuki, Yamanaka Taku, YOSHIDA Hirotoshi, YOSHIDA Ken
Принадлежит: DAIKIN INDUSTRIES, LTD.

The invention provides a production method for producing low molecular weight polytetrafluoroethylene enabling easy removal of most of C8-C14 perfluorocarboxylic acids and salts thereof, which are unfortunately generated by irradiation, from the low molecular weight polytetrafluoroethylene. The method for producing low molecular weight polytetrafluoroethylene includes: (1) irradiating polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a melt viscosity of 1×10to 7×10Pa·s at 380° C.; (2) pulverizing the low molecular weight polytetrafluoroethylene; and (3) heating the low molecular weight polytetrafluoroethylene pulverized in the step (2). 1. A method for producing low molecular weight polytetrafluoroethylene , comprising:{'sup': 2', '5, '(1) irradiating polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a melt viscosity of 1×10to 7×10Pa·s at 380° C.;'}(2) pulverizing the low molecular weight polytetrafluoroethylene; and(3) heating the low molecular weight polytetrafluoroethylene pulverized in the step (2).2. The production method according to claim 1 ,wherein the heating is performed at a temperature of 50° C. to 300° C.3. The production method according to claim 1 ,wherein the heating is performed at a temperature of 50° C. to 200° C.4. The production method according to claim 1 ,wherein the polytetrafluoroethylene has a standard specific gravity of 2.130 to 2.230.5. The production method according to claim 1 ,wherein both the polytetrafluoroethylene and the low molecular weight polytetrafluoroethylene are in the form of powder.6. The production method according to claim 1 , further comprising:(4) heating the polytetrafluoroethylene up to a temperature that is not lower than the primary melting point thereof to provide a molded article before the step (1),{'sup': '3', 'the molded article having a specific gravity of 1.0 g/cmor higher.'}7. Low molecular weight polytetrafluoroethylene obtainable ...

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Номер записи: 71
24-01-2019 дата публикации

AN ETHYLENE/ALPHA-OLEFIN COPOLYMER COMPOSITION, AND ARTICLES COMPRISING THE SAME

Номер: US20190023883A1
Автор: Bastero Amaia, Demirors Mehmet, Fontaine Philip P., Ginger Douglas S., Kapur Mridula, Lopez David, WANG Jian
Принадлежит: Dow Global Technologies LLC

An ethylene/alpha-olefin copolymer composition having a density from 0.935 to 0.955 g/cc; a ratio of weight average molecular weight to number average molecular weight, Mw/Mn, of from 3 to 10; a z-average molecular weight, Mz, from 200 kg/mol to 500 kg/mol; and a PENT value of greater than 500 hours at 80° C. and 2.4 MPa; wherein when the composition is formed into a monolayer pipe the pipe has a pipe hydrostatic strength of greater than 100 hours at 20° C. and 12.0 MPa. Also provided is a pipe or pipe fitting comprising the ethylene/alpha-olefin copolymer composition. 1. A pipe fabricated from an ethylene/alpha-olefin copolymer composition having:a) a density from 0.935 to 0.955 g/cc;b) a ratio of weight average molecular weight to number average molecular weight, Mw/Mn, of from 3 to 10;c) a z-average molecular weight, Mz, of from 200 kg/mol to 500 kg/mol; andd) a PENT value determined according to ASTM F1473-13 of greater than 500 hours at 80° C. and 2.4 MPa;wherein the pipe has a pipe hydrostatic strength, determined according to ISO 1167, of greater than 100 hours at 20° C. and 12.0 MPa as specified in EN 12201-2.2. The pipe of claim 1 , wherein the pipe further exhibits a pipe hydrostatic strength claim 1 , determined according to ISO 1167 claim 1 , of at least 1 claim 1 ,000 hours at 95° C. and 3.6 MPa as specified in ISO 22391-2.3. The pipe of claim 1 , wherein the composition further exhibits a zero shear viscosity ratio claim 1 , ZSVR claim 1 , of from 1.5 to 20.4. The pipe of claim 1 , wherein the composition further exhibits a dynamic viscosity claim 1 , η* claim 1 , at 100 rad/sec and 190° C. of less than 2 claim 1 ,000 Pa-s.5. The pipe of claim 1 , wherein the composition further exhibits a dynamic viscosity claim 1 , η* claim 1 , at 0.1 rad/sec and 190° C. from 10 claim 1 ,000 to 70 claim 1 ,000 Pa-s.6. The pipe of claim 1 , wherein the composition has a density from 0.940 to 0.952 g/cc.7. The pipe of claim 1 , wherein the composition has a ratio of ...

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Номер записи: 72
24-01-2019 дата публикации

RESIN COMPOSITION AND MOLDED ARTICLE

Номер: US20190023887A1
Автор: Tanaka Ryo
Принадлежит: FUJI XEROX CO.,LTD.

A resin composition includes a cellulose ester compound and a styrene-acrylonitrile resin having a weight average molecular weight of 50,000 or greater and 200,000 or less. 1. A resin composition comprising:a cellulose ester compound; anda styrene-acrylonitrile resin having a weight average molecular weight of 50,000 or greater to 200,000 or less.2. The resin composition according to claim 1 ,wherein a ratio of a total mass of the styrene-acrylonitrile resin with respect to a total of a total mass of the cellulose ester compound and the total mass of the styrene-acrylonitrile resin is 0.05 or greater to 0.35 or less.3. The resin composition according to claim 1 ,wherein a ratio of a total mass of the styrene-acrylonitrile resin with respect to a total of a total mass of the cellulose ester compound and the total mass of the styrene-acrylonitrile resin is 0.10 or greater to 0.30 or less.4. The resin composition according to claim 1 ,wherein the cellulose ester compound includes at least one selected from the group consisting of cellulose acetate propionate and cellulose acetate butyrate.5. The resin composition according to claim 1 , further comprising:a thermoplastic elastomer having a constituent unit derived from a (meth)acrylic acid ester compound.6. The resin composition according to claim 5 ,wherein the thermoplastic elastomer has a core-shell structure having a core part and a shell layer.7. The resin composition according to claim 5 ,wherein the thermoplastic elastomer includes a constituent unit derived from an olefin compound.8. The resin composition according to claim 7 ,wherein the constituent unit derived from an olefin compound is a constituent unit derived from at least one compound selected from the group consisting of ethylene, α-olefin, and butadiene.9. The resin composition according to claim 5 ,wherein a ratio of a total mass of the thermoplastic elastomer with respect to a total of a total mass of the cellulose ester compound and a total mass of ...

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Номер записи: 73
24-01-2019 дата публикации

THERMOPLASTIC COMPOSITIONS CONTAINING ACRYLIC COPOLYMERS AS MELT STRENGTH AND CLARITY PROCESS AIDS

Номер: US20190023889A1
Автор: PETR Michael T.
Принадлежит:

Provided are thermoplastic polymer composition comprising (a) a polyvinyl halide, and (b) an acrylic copolymer comprising 70 to 100 weight % of a first polymeric stage, based on the total weight of the acrylic copolymer, comprising polymerized units derived from at least 85 weight % of one or more C-Calkyl methacrylate monomers and C-Calkyl acrylate monomers, based on the total weight of monomers in the first polymeric stage, wherein the first polymeric stage has a calculated Tof 70° C. or less, and wherein the acrylic copolymer has a molecular weight of greater than 1.5×10g/mol. 1. A thermoplastic polymer composition comprising:(a) a polyvinyl halide; and{'sub': 1', '6', '1', '3', 'g, 'sup': '6', '(b) an acrylic copolymer comprising 70 to 100 weight % of a first polymeric stage, based on the total weight of the acrylic copolymer, comprising polymerized units derived from at least 85 weight % of one or more C-Calkyl methacrylate monomers and C-Calkyl acrylate monomers, based on the total weight of monomers in the first polymeric stage, wherein the first polymeric stage has a calculated Tof 70° C. or less, and wherein the acrylic copolymer has a molecular weight of 1.5×10g/mol or more.'}2. The thermoplastic polymer composition of claim 1 , wherein the first polymeric stage comprises (i) 35 to 75 weight % of methyl methacrylate monomers claim 1 , and (ii) 25 to 65 weight % of one or more C-Calkyl methacrylate monomers and C-Calkyl acrylate monomers claim 1 , based on the total weight of monomers in the first polymeric stage.3. The thermoplastic polymer composition of claim 2 , wherein the C-Calkyl methacrylate monomers and C-Calkyl acrylate monomers of the first polymeric stage comprise one or more of butyl methacrylate and ethyl acrylate.4. The thermoplastic polymer composition of claim 1 , wherein the acrylic copolymer further comprises a second polymeric stage comprising polymerized units derived from one or more C-Calkyl (meth)acrylate monomers.5. The ...

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Номер записи: 74
24-01-2019 дата публикации

METHOD OF PREPARING ABS-BASED GRAFT COPOLYMER HAVING IMPROVED IMPACT STRENGTH AND METHOD OF MANUFACTURING ABS-BASED INJECTION-MOLDED ARTICLE INCLUDING THE SAME

Номер: US20190023894A1
Автор: CHUNG Sun Haeng, HAN Su Jeong, HEO Jae Won, JEONG Young Hwan, KIM Yoo Vin, KIM Young Min, LEE Jin Hyoung, SUK Jae Min
Принадлежит:

The present invention relates to a method of preparing an ABS-based graft copolymer having improved impact strength and an ABS-based injection-molded article including the same. More particularly, the present invention provides an ABS-based copolymer resin having improved impact strength by optimizing structures of large-diameter diene-based rubber latex particles and a matrix structure between ABS-based copolymer particles and a SAN resin through introduction of a multimeric acid of an unsaturated fatty acid or a metal salt thereof as an emulsifier in a large-diameter diene-based rubber latex polymerization step and an ABS graft polymerization step. 1. A method of preparing an ABS-based graft copolymer having improved impact strength , the method comprising:a) a step of polymerizing 100 parts by weight of a conjugated diene-based monomer, 0.5 to 5 parts by weight of an emulsifier, and 0.01 to 6 parts by weight of a water-soluble polymerization initiator; b) a step of adding 0.01 to 5 parts by weight of an emulsifier thereto when a polymerization conversion rate is 60 to 85%, after step a); c) a step of terminating polymerization when a polymerization conversion rate is 90 to 99% to obtain a large-diameter diene-based rubber latex; and d) a step of graft-polymerizing 100 parts by weight of a monomer mixture comprising 40 to 70% by weight (based on solids) of the large-diameter diene-based rubber latex, 15 to 35% by weight of an aromatic vinyl monomer, and 5 to 25% by weight of a vinyl cyan monomer with 0.01 to 3 parts by weight of an emulsifier, 0.01 to 3 parts by weight of an initiator, and 0.001 to 1 part by weight of an oxidation-reduction catalyst,wherein the emulsifiers of steps a) and d) are a multimeric acid of an unsaturated fatty acid or a metal salt thereof.2. The method according to claim 1 , wherein the unsaturated fatty acid is a straight-chain claim 1 , branched-chain claim 1 , or cyclic unsaturated fatty acid having 8 to 22 carbon atoms.3. The method ...

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Номер записи: 75
25-01-2018 дата публикации

POLYMER AND POSITIVE RESIST COMPOSITION

Номер: US20180024430A1
Автор: Hoshino Manabu
Принадлежит: ZEON CORPORATION

Provided are a polymer that can be favorably used as a positive resist having a low film reduction rate in a state of low irradiation with ionizing radiation or the like and a positive resist composition that can favorably form a high-resolution pattern. The polymer includes an α-methylstyrene unit and a methyl α-chloroacrylate unit, and the proportion of components having a molecular weight of less than 6,000 in the polymer is no greater than 0.5%. The positive resist composition contains the aforementioned polymer and a solvent. 1. A polymer comprising an α-methylstyrene unit and a methyl α-chloroacrylate unit , whereina proportion of components having a molecular weight of less than 6,000 is no greater than 0.5%.2. The polymer according to claim 1 , whereina proportion of components having a molecular weight of less than 10,000 is no greater than 0.5%.3. The polymer according to claim 1 , whereina proportion of components having a molecular weight of greater than 80,000 is at least 15%.4. The polymer according to claim 1 , having a weight average molecular weight (Mw) of at least 55 claim 1 ,000.5. A positive resist composition comprising the polymer according to and a solvent. The present disclosure relates to a polymer and a positive resist composition, and in particular relates to a polymer that is suitable for use as a positive resist and a positive resist composition that contains this polymer.Polymers that display increased solubility in a developer after undergoing main chain scission through irradiation with ionizing radiation, such as an electron beam, or short-wavelength light, such as ultraviolet light, are conventionally used as main chain scission-type positive resists in fields such as semiconductor production. (Hereinafter, the term “ionizing radiation or the like” is used to refer collectively to ionizing radiation and short-wavelength light.)PTL 1 discloses one example of a main chain scission-type positive resist having high sensitivity. The ...

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Номер записи: 76
25-01-2018 дата публикации

POLYMER AND POSITIVE RESIST COMPOSITION

Номер: US20180024432A1
Автор: Hoshino Manabu
Принадлежит: ZEON CORPORATION

Provided are a polymer that can be favorably used as a positive resist having a low film reduction rate under low irradiation, a high y value, and high sensitivity, and a positive resist composition that can efficiently form a high-resolution pattern. The polymer includes an a-methylstyrene unit and a methyl α-chloroacrylate unit, and has a molecular weight distribution (Mw/Mn) of less than 1.48. In the polymer, the proportion of components having a molecular weight of less than 6,000 is no greater than 0.5% and the proportion of components having a molecular weight of greater than 80,000 is no greater than 6.0%. The positive resist composition contains the aforementioned polymer and a solvent. 1. A polymer comprising an α-methylstyrene unit and a methyl α-chloroacrylate unit , whereinthe polymer has a molecular weight distribution (Mw/Mn) of less than 1.48,a proportion of components having a molecular weight of less than 6,000 is no greater than 0.5%, anda proportion of components having a molecular weight of greater than 80,000 is no greater than 6.0%.2. The polymer according to claim 1 , whereina proportion of components having a molecular weight of less than 10,000 is no greater than 0.8%.3. The polymer according to claim claim 1 , having a weight average molecular weight (Mw) of at least 30 claim 1 ,000.4. The polymer according to claim 1 , whereina proportion of components having a molecular weight of greater than 100,000 is at least 0.5%.5. A positive resist composition comprising the polymer according to and a solvent. The present disclosure relates to a polymer and a positive resist composition, and in particular relates to a polymer that is suitable for use as a positive resist and a positive resist composition that contains this polymer.Polymers that display increased solubility in a developer after undergoing main chain scission through irradiation with ionizing radiation, such as an electron beam, or short-wavelength light, such as ultraviolet light, ...

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Номер записи: 77
24-01-2019 дата публикации

AQUEOUS POLYMER DISPERSIONS, A METHOD FOR THEIR PREPARATION AND THE USE THEREOF AS POUR-POINT DEPRESSANTS FOR CRUDE OIL, PETROLEUM, AND PETROLEUM PRODUCTS

Номер: US20190024011A1
Автор: Bohres Edward, BRAEUER Judith Christine, FRENZEL Stefan, Gumlich Kai, JACKSON Jennifer Anne, SOCHER Maria
Принадлежит:

The invention relates to aqueous polymer dispersions comprising at least one polymer obtainable by the reaction of at least one monomer M1 of the general formula HC═CH—C(O)OR (I), wherein R is an unbranched alkyl chain comprising from 18 to 22 carbon atoms, and optionally at least one monomer M2. The invention relates moreover to a method for the preparing of such aqueous polymer dispersion and the use thereof as pour point depressant for crude oil, petroleum, and petroleum products. 115.-. (canceled)16. An aqueous polymer dispersion comprising [ {'br': None, 'sub': '2', 'HC═CH—C(O)OR\u2003\u2003(I)'}, '50 to 100% by weight of at least one monomer M1 of the general formula (I)'}, 'wherein R is an unbranched alkyl chain comprising from 18 to 22 carbon atoms; and', '0 to 50% by weight of at least one monomer M2, which is different from monomer M1;, 'a) 10 to 55% by weight based on the dispersion of at least one polymer P obtainable by the reaction of reactive monomers M, wherein the reactive monomers M comprise'}wherein the amounts of the monomers M1 and M2 are each based on the total amount of all reactive monomers M used in the reaction,{'sub': 'w', 'wherein the polymer P has a weight-average molecular weight Mof 20,000 to 150,000 g/mol according to DIN 55672-1:1995-02; and'}{'sub': '50', 'wherein the polymer P is present in the form of particles having an average particle size dof from 75 nm to 400 nm effected by Column Hydrodynamic Chromatography;'}b) 0 to 24.5% by weight based on the total amount of the aqueous polymer dispersion of at least one with water miscible solvent,c) 0 to 30% by weight based on the total amount of the aqueous polymer dispersion of at least one hydrophobic organic solvent, 15 to 30% by weight of acrylic acid, methacrylic acid, or a mixture thereof; and', '70 to 85% by weight of methyl methacrylate, n-butyl acrylate, 2-ethylhexyl acrylate, styrene, alpha-methyl styrene, or a mixture of two or more thereof, in polymerized form,', 'wherein ...

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Номер записи: 78
28-01-2021 дата публикации

Methods for Scale-Up From a Pilot Plant to a Larger Production Facility

Номер: US20210024660A1
Автор: IMPELMAN Ryan W., Sanders David F., Savatsky Bruce J.
Принадлежит:

Methods for scale-up from a pilot plant to full production of a bimodal polymer product having a density, melt index, and a melt index ratio are provided herein. The methods provide for adjusting reactor conditions and catalyst ratio of a bimodal catalyst system to optimize the transition from single catalyst to bimodal polymer compositions on a full-scale process plant consistent with pilot plant development. 1. A method for scale-up from a pilot plant to a larger production facility of a bimodal polymer product having a density and a melt index comprising the steps of:producing a bimodal polymer product in a first reactor in a pilot plant with a bimodal catalyst system under a first set of operating conditions, wherein the bimodal catalyst system comprises a first catalyst and a second catalyst and the bimodal polymer product has a bimodal polymer product density and a bimodal polymer product melt index;producing a single catalyst polymer composition in the first reactor in the pilot plant with a single catalyst system under a second set of operating conditions, wherein the single catalyst polymer composition has a single catalyst polymer composition density and a single catalyst polymer composition melt index, and the single catalyst polymer composition is produced in the first reactor before or after the step of producing the bimodal polymer product in the first reactor;producing the single catalyst polymer composition in a second reactor in a full-scale process plant with the single catalyst system, wherein the second set of operating conditions to produce the single catalyst polymer composition are adjusted to provide a third set of operating conditions;determining a fourth set of operating conditions, wherein each operating condition of the fourth set of operating conditions equals a ratio of the operating condition of the third set of operating conditions to the operating condition of the second set of operating conditions and the operating condition of the ...

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Номер записи: 79
28-01-2021 дата публикации

Process for obtaining low volatile plastomers

Номер: US20210024669A1
Автор: Michiel Bergstra, Mohammad AL-HAJ ALI, Vasileios KANELLOPOULOS
Принадлежит: Borealis AG

Process for reducing the volatile organic compound content of plastomer having a density of equal to or lower than 883 kg/m3 and—a MFR2 of 100.0 g/l 0 min or lower (ISO 1133 at 2.16 kg load and 190° C.); to below 65 ppm(VOC, VDA277), the process comprising the steps of a) providing raw plastomer in granular form, the raw plastomer having a density of equal to or lower than 883 kg/m3; and a MFR2 of 100.0 g/10 min or lower (ISO 1133 at 2.16 kg load and 190° C.); and a volatile organic compound content (VOC, VDA277) of above 150 ppm, and the granules having an average D50 diameter of 2.5 to 4.5 mm b) subjecting said granular raw plastomer to at least one intensive hydrodynamic regime at a minimum temperature of at least 20° C. and a maximum temperature of 4° C. below the Vicat temperature (10 N, ISO 306) of the granular raw plastomer or 35° C., whatever value is lower, with the temperature measured at the gas inlet to the fast-fluidization regime, c) recovering the granular plastomer.

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Номер записи: 80
17-02-2022 дата публикации

COMPOSITIONS AND MEDICAL DEVICES COMPRISING ANTI-MICROBIAL PARTICLES

Номер: US20220046915A1
Автор: Weiss Ervin I., ZALTSMAN Nathan
Принадлежит: NOBIO LTD.

This invention relates to compositions and medical devices comprising anti-microbial active particles, for inhibiting microbial growth. This invention further provides methods of making such compositions and medical devices. 3. The composite of claim 1 , wherein the particles are dispersed in the polymeric material.4. The composite of claim 1 , wherein the core of the particles comprises silica.5. The composite of claim 4 , wherein the silica is selected from the group consisting of amorphous silica claim 4 , dense silica claim 4 , aerogel silica claim 4 , porous silica claim 4 , mesoporous silica and fumed silica.6. The composite of claim 1 , wherein the inorganic polymer is selected from the group consisting of silicone polymers ceramics claim 1 , metals claim 1 , and combinations thereof.7. The composite of claim 1 , wherein the inorganic core is polyhedral oligomeric silsesquioxane (POSS).8. The composite of claim 1 , wherein the weight ratio of the anti-microbial particles which are represented by structure (1) to the polymeric material is between 0.25-5%.9. The composite of claim 1 , wherein the particles are a mixture of different particles.10. The composite of claim 1 , wherein said composition is capable of filling of tooth decay cavities claim 1 , is a dental restorative endodontic filling material for filling root canal space in root canal treatment claim 1 , or is selected from the group consisting of a dental restorative material intended for provisional and final tooth restorations or tooth replacement claim 1 , a dental inlay claim 1 , a dental onlay claim 1 , a crown claim 1 , a partial denture claim 1 , a complete denture claim 1 , a dental implant claim 1 , a dental implant abutment claim 1 , and a cement intended for permanently cementing crowns bridges claim 1 , onlays claim 1 , partial dentures and orthodontic appliances onto tooth enamel and dentin.11. The composite of claim 1 , wherein the anti-microbial active groups have a surface density of ...

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Номер записи: 81
02-02-2017 дата публикации

SILYL BIS(HEXAMETHYLINDENYL) COMPLEXES OF GROUP IVA METALS AS POLYMERIZATION CATALYSTS

Номер: US20170029537A1
Автор: "OHare Dermot", Buffet Jean-Charles
Принадлежит:

Novel Si-bridged metallocene catalysts of formula I defined herein are disclosed, as well as their use in olefin polymerisation reactions. 2. The compound according to claim 1 , wherein R claim 1 , R claim 1 , Rand Rare each independently (1-2C)alkyl.3. The compound according to claim 1 , wherein R claim 1 , R claim 1 , Rand Rare all methyl.4. The compound according to claim 1 , wherein X is zirconium or hafnium.5. The compound according to claim 1 , wherein Rand Rare each independently (1-6C)alkyl or (2-6C)alkenyl.6. The compound according to claim 1 , wherein Rand Rare each independently (1-4C)alkyl.7. The compound according to claim 1 , wherein each Y is independently halo or (1-2C)alkyl group which is optionally substituted with halo claim 1 , phenyl claim 1 , or Si[(1-4C)alkyl].8. The compound according to claim 1 , wherein Y is halo.9. The compound according to claim 8 , wherein Rand Rare each independently selected from the group consisting of methyl claim 8 , propyl and allyl.10. The compound according to claim 9 , wherein X is zirconium.1314-. (canceled)15. A composition comprising a compound of formula I as defined in claim 1 , and a suitable activator.16. The composition of claim 15 , wherein the suitable activator is solid MAO and the compound of formula I is supported thereon.17. A process for forming a polyethylene which comprises reacting olefin monomers in the presence of (i) a compound of formula I as defined in claim 1 , and (ii) a suitable activator.18. The process according to claim 17 , wherein the activator comprises an aluminoxane claim 17 , tri(isobutyl)aluminium (TIBA) or triethylaluminium (TEA).19. The process according to claim 17 , wherein the activator is provided as an activated support.20. The process according to claim 19 , wherein the compound of formula I is supported on the activated support.21. The process according to claim 19 , wherein the activated support is methylaluminoxane activated silica or methylaluminoxane activated AMO ...

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Номер записи: 82
02-02-2017 дата публикации

PRODUCTION METHOD FOR OLEFIN-BASED POLYMER, AND OLEFIN POLYMERIZATION CATALYST

Номер: US20170029539A1
Автор: Nishida Masayuki, SAMEJIMA Kanako
Принадлежит: IDEMITSU KOSAN CO., LTD.

Provided is a production method for an olefin-based polymer, including polymerizing an olefin raw material using (A) a transition metal compound, (B) a boron compound capable of forming an ion pair with the component (A), (C) a specific organoaluminum compound, and (D) a specific aluminoxane in presence of at least one or more kinds of (N) a nonpolymerizable unsaturated hydrocarbon in the olefin raw material or a polymerization solvent. 2: The method according to claim 1 , wherein a molar ratio [(D)/(A)] of a molar quantity of an aluminum atom in the component (D) to a molar quantity of a transition metal in the component (A) is more than 2.3: The method according to claim 1 , wherein a molar ratio [(C)/(D)] of a molar quantity of an aluminum atom in the component (C) to a molar quantity of an aluminum atom in the component (D) is 0.01 or more.5: The method according to claim 1 , wherein the olefin raw material comprises an α-olefin having 3 to 30 carbon atoms claim 1 , ethylene claim 1 , or both.7: The method according to claim 1 , wherein a molar ratio [(N)/(A)] of a molar quantity of the component (N) to a molar quantity of a transition metal in the component (A) is 500 or more.8: The method according to claim 1 , wherein the component (D) is present in such an amount that claim 1 , with respect to catalytic activity in a case of polymerizing an olefin in the presence of a catalyst obtained by bringing the component (A) claim 1 , the component (B) claim 1 , and the component (C) into contact with each other claim 1 , the catalytic activity in a case of using the component (D) in place of the component (B) is 1/10 or less.10: The olefin polymerization catalyst according to claim 9 , wherein the olefin polymerization catalyst is obtained by bringing the component (A) claim 9 , the component (B) claim 9 , and the component (C) into contact with each other claim 9 , and then bringing the resultant mixture into contact with the component (D).11: The olefin ...

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Номер записи: 83
02-02-2017 дата публикации

Processes for Preparing Metallocene-Based Catalyst Systems

Номер: US20170029541A1
Автор: CYMBALUK Ted H., Holtermann Dennis L., MCDANIEL Max P., YANG Qing
Принадлежит:

Methods for preparing single and dual metallocene catalyst systems containing an activator-support are disclosed. These methods can include precontacting of the activator-support and an organoaluminum compound, as well as sequential contacting of two different metallocene compounds to form a dual metallocene catalyst system. 17-. (canceled)8. A process to produce a dual metallocene catalyst composition , the process comprising:(a) contacting a first metallocene compound and an organoaluminum compound with a slurry of an activator-support for a first period of time to form a first mixture; and(b) contacting the first mixture with a second metallocene compound for a second period of time to form the dual metallocene catalyst composition.9. The process of claim 8 , wherein:the first metallocene compound is less reactive with the activator-support than the second metallocene compound; anda weight ratio of the first metallocene compound to the second metallocene compound is in a range from about 1:10 to about 10:1.10. The process of claim 8 , wherein:the activator-support comprises sulfated alumina;the first metallocene compound comprises a bridged metallocene compound; andthe second metallocene compound comprises an unbridged metallocene compound.11. The process of claim 8 , wherein:the activator-support comprises a fluorided solid oxide, a sulfated solid oxide, a phosphated solid oxide, or a combination thereof;the organoaluminum compound comprises trimethylaluminum, triethylaluminum, tri-n-propylaluminum, tri-n-butylaluminum, triisobutylaluminum, or any combination thereof;the first metallocene compound comprises a bridged zirconium or hafnium based metallocene compound with a cyclopentadienyl group and a fluorenyl group; andthe second metallocene compound comprises an unbridged zirconium or hafnium based metallocene compound containing two cyclopentadienyl groups, two indenyl groups, or a cyclopentadienyl and an indenyl group.12. The process of claim 8 , wherein an ...

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Номер записи: 84
02-02-2017 дата публикации

POLYMERIZABLE COMPOUND, COMPOSITION, POLYMER, OPTICALLY ANISOTROPIC BODY, LIQUID CRYSTAL DISPLAY DEVICE, AND ORGANIC EL DEVICE

Номер: US20170029655A1
Автор: Aoki Yoshio, Hasebe Hiroshi, Koiso Akihiro, Kotani Kunihiko, Nakata Hidetoshi
Принадлежит: DIC CORPORATION

It is an object of the present invention to provide a polymerizable compound suitable as a material for optically anisotropic bodies having excellent optical properties, a composition containing the polymerizable compound, a polymer obtained by polymerizing the polymerizable compound, an optically anisotropic body formed of the polymer, and a liquid crystal display device including the optically anisotropic body. 2. The polymerizable compound according to claim 1 , wherein X claim 1 , X claim 1 , X claim 1 , and Xeach independently represent a single bond claim 1 , —CHCH— claim 1 , —CH═CH— claim 1 , —C≡— claim 1 , —CH═CHCOO— claim 1 , —OCO—CH═CH— claim 1 , —(CH)—O—COO— claim 1 , —(CH)—OCO— claim 1 , —(CH)—COO— claim 1 , —(CH)—O— claim 1 , —O—COO—(CH)— claim 1 , —OCO—(CH)— claim 1 , —COO—(CH)— claim 1 , or —O—(CH)— (u represents an integer of 0 to 2).3. A composition comprising the polymerizable compound according to .4. A polymer obtained by polymerizing the composition according to .5. An optically anisotropic body using the polymer according to .6. A liquid crystal display device using the optically anisotropic body according to .7. An organic EL device using the optically anisotropic body according to . The present invention relates to a polymerizable compound, a composition, a polymer, an optically anisotropic body, a liquid crystal display device, and an organic EL device.Optically anisotropic bodies such as retardation films and polarizing plates used in liquid crystal displays can be produced by applying a solution containing a polymerizable liquid crystal material onto a substrate subjected to a rubbing treatment or a substrate having a photo-alignment film formed thereon, drying a solvent, and then performing polymerization using ultraviolet rays or heat. Regarding retardation films, the wavelength dispersion of the birefringence index (Δn) needs to be decreased or reversed in order to improve the viewing angle of liquid crystal displays. To realize such ...

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Номер записи: 85
31-01-2019 дата публикации

SHOE SOLES, COMPOSITIONS, AND METHODS OF MAKING THE SAME

Номер: US20190029361A1
Автор: Gopalan Krishnamachari, Herd-Smith Roland, Ji Gending, Lenhart Robert J.
Принадлежит: COOPER-STANDARD AUTOMOTIVE INC.

A shoe sole composition and method for making a shoe sole are provided. The shoe sole includes a composition comprising a foamed silane-crosslinked polyolefin elastomer having a density less than 0.50 g/cm. The shoe sole exhibits a compression set of from about 5.0% to about 20.0%, as measured according to ASTM D 395 (6 hrs @ 50° C.). The foamed silane-crosslinked polyolefin elastomer can be produced from a blend including a first polyolefin having a density less than 0.86 g/cm, a second polyolefin, having a crystallinity less than 40%, a silane crosslinker, a grafting initiator, a condensation catalyst, and a foaming agent. 1. A shoe midsole comprising:{'sup': '3', 'claim-text': [{'sup': '3', 'a first polyolefin having a density less than 0.86 g/cm,'}, 'a second polyolefin having a crystallinity less than 40%,', 'a silane crosslinker,', 'a grafting initiator,', 'a condensation catalyst, and', 'a foaming agent,, 'a foamed silane-crosslinked polyolefin elastomer having a density less than 0.50 g/cm, the foamed silane-crosslinked polyolefin elastomer comprisingwherein the shoe midsole exhibits a compression set of from about 1.0% to about 50.0%, as measured according to ASTM D 395 (48 hrs @ 50° C.).2. The shoe midsole of claim 1 , wherein the first polyolefin is an ethylene/α-olefin copolymer from about 60 wt % to about 97 wt %.3. The shoe midsole of claim 1 , wherein the second polyolefin is a polypropylene homopolymer and/or a poly(ethylene-co-propylene) claim 1 , the second polyolefin from about 10 wt % to about 35 wt %.4. The shoe midsole of claim 1 , wherein the silane crosslinker comprises a vinyltrialkoxy silane from about 1 wt % to about 4 wt %.5. The shoe midsole of claim 1 , wherein the grafting initiator comprises one or more halogen molecules claim 1 , azo compounds claim 1 , carboxylic peroxyacids claim 1 , peroxyesters claim 1 , peroxyketals claim 1 , and peroxides claim 1 , the grafting initiator from greater than 0.15 wt % to about 2 wt %.6. The shoe ...

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Номер записи: 86
01-02-2018 дата публикации

METHOD OF FORMING THERMORESPONSIVE POLYMERS

Номер: US20180030171A1
Автор: Delgado Paula, Palkar Amit
Принадлежит: Phillips 66 Company

A method of forming a thermoresponsive polymer. The method proceeds by mixing 2-(3-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)ureido)ethyl methacrylate and methacrylamide in the presence of a solvent form a monomer solution. An initiator is then added to the monomer solution to form a thermoresponsive polymer. 1. A method comprising:mixing 2-(3-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)ureido)ethyl methacrylate and methacrylamide in the presence of an organic solvent to form a monomer solution;adding an initiator to the monomer solution to form a thermoresponsive polymer.2. The method of claim 1 , wherein the organic solvent is selected from the group consisting of: dimethyl sulfoxide claim 1 , dimethyl formamide claim 1 , ethyl acetate claim 1 , methanol claim 1 , dioxane claim 1 , tetrahydrofuran claim 1 , acetone claim 1 , methylene chloride and toluene and combinations thereof.3. The method of claim 1 , wherein monomer solution is heated to a temperature greater than 50° C.4. The method of claim 1 , wherein monomer solution is heated to a temperature greater than 70° C.5. The method of claim 1 , wherein the initiator is an addition-type initiator.6. The method of claim 1 , wherein the initiator is selected from the group consisting of: azo initiators claim 1 , azobisisobutyronitriles claim 1 , peroxides claim 1 , persulfates and combinations thereof.7. The method of claim 1 , wherein the mixing of monomer solution occurs at an elevated temperature.8. The method of claim 7 , wherein the elevated temperature is greater than 50° C.9. The method of claim 1 , wherein the thermoresponsive polymer is purified in a polar solvent.10. The method of claim 1 , wherein the thermoresponsive polymer is water soluble.12. The method of claim 1 , wherein the thermoresponsive polymer has an average molecular weight greater than 50 claim 1 ,000.11. A method comprising:mixing from about 0.01 mol % to about 50 mol % 2-(3-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)ureido)ethyl ...

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Номер записи: 87
01-02-2018 дата публикации

Method of forming thermoresponsive polymers

Номер: US20180030172A1
Автор: Amit Palkar, Paula Delgado
Принадлежит: Phillips 66 Co

A method of forming a thermoresponsive polymer. The method begins by mixing in the presence of an organic solvent to form a monomer solution. An initiator is then added to the monomer solution to form a thermoresponsive polymer. In this method, R1 and R4 can be independently selected from the group consisting of H and alkyl groups; R2 and R3 can be independently selected from the group consisting of H, alkyl, olefinic, aromatic, heterocyclic, halogen, ammonium, nitroxides, nitrates, nitrite amides, amines, esters, ethers, carboxylic acids, acyl chlorides, alcohols, nitriles, phosphates, phosphonates, sulfates, sulfonates, sulfide, sulfite, thiol, and combinations thereof; Y can be selected from the group consisting of O, N and S; R5 and R6 can be independently selected from the group consisting of alkyl, olefinic, heterocyclic, halogens, ammonium, carboxylic, amines, esters, amides and combinations thereof; and X are methylene groups from about 0 to about 20 carbons.

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Номер записи: 88
01-02-2018 дата публикации

METHOD OF REDUCING DRAG IN A CONDUIT

Номер: US20180030178A1
Автор: Al-Malki Abdullah Raddad, Al-Sarkhi Abdel Salam, Al-Thenayan Faisal Mohammed, Atiqullah Muhammad, Hossaen Anwar, XU WEI
Принадлежит:

A method of reducing drag in a conduit. The method includes producing ultra high molecular weight (UHMW) C-Cα-olefin drag reducing agent (DRA) and introducing the UHMW C-Cα-olefin polymer DRA into the conduit to reduce drag in the conduit. The catalyst consists essentially of at least one tertiary monophenyl amine selected from the group consisting of N,N-diethylaniline, N-ethyl-N-methylparatolylamine, N,N-dipropylaniline, N,N-diethylmesitylamine, and combinations thereof; at least one titanium halide having a formula TiX, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRYwhere R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support. 1. A method of reducing drag in a conduit comprising:{'sub': 4', '30, 'claim-text': at least one tertiary monophenyl amine selected from the group consisting of N,N-diethylaniline, N-ethyl-N-methylparatolylamine, N,N-dipropylaniline, N,N-diethylmesitylamine, and combinations thereof;', {'sub': 'm', 'at least one titanium halide having a formula TiX, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and'}, {'sub': n', '3-n, 'at least one cocatalyst having a formula AlRYwhere R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-3; and'}], 'producing a UHMW C-Cα-olefin copolymer DRA by polymerizing in a reactor a first α-olefin monomer in the presence of a catalyst and a hydrocarbon solvent, where the catalyst consists essentially of{'sub': 4', '30, 'introducing the UHMW C-Cα-olefin polymer DRA into the conduit to reduce drag in the conduit.'}2. The method of where the UHMW C-Cα-olefin polymer DRA has a non-crystalline structure.3. The method of where the UHMW C-Cα-olefin polymer DRA has a molecular weight distribution (MWD) of at least 3.25 claim 1 , where MWD is defined as M/Mwith Mw being a weight average molecular weight and Mbeing a number average molecular weight.4. The ...

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Номер записи: 89
01-02-2018 дата публикации

PRODUCTION METHOD OF ALPHA-OLEFIN LOW POLYMER AND PRODUCTION APPARATUS

Номер: US20180030181A1
Автор: Emoto Hiroki
Принадлежит:

The present invention relates to a method and an apparatus for producing an α-olefin low polymer by subjecting an α-olefin to low polymerization reaction in the presence of a catalyst in a liquid phase part within a reactor, and the present invention relates to a method and an apparatus for producing an α-olefin low polymer, such as 1-hexene, etc., by subjecting an α-olefin, such as ethylene, etc., to low polymerization reaction, in which the formation of a polymer on an upper tube plate surface of a shell and tube type heat exchanger that is used for heat removal is suppressed, thereby performing a continuous operation stably over a long period of time. 1. A method for producing an α-olefin low polymer by subjecting an α-olefin to low polymerization reaction in the presence of a catalyst , the method comprising:a step of withdrawing a gas of a gas phase part within a reactor, introducing the gas for cooling into a shell and tube type heat exchanger, and circulating and supplying an obtained condensed liquid into the reactor,wherein the heat exchanger includes jet nozzles for supplying atomized droplets between a gas supply port and a tube plate,{'sup': '3', 'the gas is supplied as a gas having a density of 20 kg/mor more at a gas flow rate of 1 m/s or more from the gas supply port, and'}{'sup': '2', 'the atomized droplets are supplied from the jet nozzles provided in five or more places per 1.00 mof an area of the tube plate.'}2. A method for producing an α-olefin low polymer by subjecting an α-olefin to low polymerization reaction in the presence of a catalyst within a reactor , the method comprising:a step of withdrawing a part of a gas of a gas phase part within a reactor, introducing the gas for cooling into a shell and tube type heat exchanger, and circulating and supplying an obtained condensed liquid into the reactor,wherein the heat exchanger includes: a cylindrical shell; an upper tube plate and a lower tube plate disposed on an upper end side and a lower ...

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Номер записи: 90
17-02-2022 дата публикации

Alkane-soluble non-metallocene precatalysts

Номер: US20220049032A1
Автор: Bethany M. NEILSON, Ian M. Munro, John F. Szul, Roger L. Kuhlman
Принадлежит: Dow Global Technologies LLC

A compound of formula (1) as drawn in the description, wherein M is a Group 4 metal, one R is a silicon-containing organic solubilizing group, and the other R is a silicon-containing organic solubilizing group or a silicon-free organic solubilizing group. A method of synthesizing the compound (1). A solution of compound (1) in alkane solvent. A catalyst system comprising or made from compound (1) and an activator. A method of polymerizing an olefin monomer with the catalyst system.

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Номер записи: 91
31-01-2019 дата публикации

LIGHT DIFFUSING AGENT, LIGHT DIFFUSING RESIN COMPOSITION AND MOLDED BODY

Номер: US20190031799A1
Автор: KOUNO Kazuki
Принадлежит: MITSUBISHI GAS CHEMICAL COMPANY, INC.

The present invention provides: a light diffusing agent which enables the achievement of a resin molded body having excellent light diffusibility, light transmission properties, surface hardness and the like; a resin composition which contains this light diffusing agent; and a molded body. One embodiment of the present invention provides a light diffusing agent which contains a copolymer that contains a (meth)acrylate constituent unit (A) represented by general formula (1) and a polyvalent vinyl constituent unit (B) that is copolymerizable with the constituent unit (A). 2. The light diffusing agent according to claim 1 , wherein m represents an integer of 0 to 3.3. The light diffusing agent according to claim 1 , wherein X represents a single bond claim 1 , —C(R)(R)— claim 1 , —C(═O)— claim 1 , —O— claim 1 , —SO— or —SO—.4. The light diffusing agent according to claim 1 , wherein both p and q represent 0.5. The light diffusing agent according to claim 1 , wherein the structural unit (B) is a divinyl structural unit.6. The light diffusing agent according to claim 5 , wherein the structural unit (B) is a bisphenol-based or naphthyl-based divinyl structural unit.7. The light diffusing agent according to claim 1 , wherein the structural unit (A) is contained in an amount of 10 to 90% by mass relative to the copolymer claim 1 , and wherein the structural unit (B) is contained in an amount of 10 to 90% by mass relative to the copolymer.8. The light diffusing agent according to claim 1 , wherein the copolymer is a polymer microparticle having an average particle diameter of 0.1 to 100 μm.9. The light diffusing agent according to claim 1 , which contains an inorganic particle in an amount of 0 to 10% by mass relative to the light diffusing agent.10. A light diffusing resin composition containing a base resin and the light diffusing agent according to .11. The light diffusing resin composition according to claim 10 , wherein the base resin is selected from the group ...

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Номер записи: 92
31-01-2019 дата публикации

POLYOLEFIN FILM WITH IMPROVED TOUGHNESS

Номер: US20190031841A1
Автор: Goode Mark G., Kopp Barbara J., Li Dongming, MURE Cliff R.
Принадлежит: UNIVATION TECHNOLOGIES, LLC

A film formed from a polyethylene copolymer using a reduced chromium oxide catalyst, ethylene monomers and a co-monomer selected from butene monomers or 1-hexene, where the polyethylene copolymer has a density in the range of from about 0.935 to about 0.950 g/cmand an I/Iin a range of about 18.0 to about 30.0. The film formed from the polyethylene copolymer has a dart drop impact (g/m) that significantly greater as compared to a film of the polyethylene copolymer formed using a silyl chromate catalyst in place of the reduced chromium oxide catalyst. A method of making such films is also provided. 1. A film comprising: a polyethylene copolymer formed using a reduced chromium oxide catalyst , ethylene monomers and a co-monomer selected from 1-butene or 1-hexene , the polyethylene copolymer formed with the co-monomer to ethylene monomer mole ratio in a range of about 0.012 to about 0.04 to form the polyethylene copolymer having a density in the range of from about 0.9350 to about 0.950 g/cmand an I/Iin a range of about 18.0 to about 30.0 , wherein the polyethylene copolymer formed using the reduced chromium oxide catalyst provides an improvement in a dart drop impact (g/μm) of the film of 17 percent to 56 percent as compared to a film of the polyethylene copolymer formed using a silyl chromate catalyst in place of the reduced chromium oxide catalyst.2. The film of claim 1 , where the reduced chromium oxide catalyst is reduced with diethylaluminum ethoxide (DEAlE).3. The film of claim 1 , wherein the polyethylene copolymer has a melt index (I) of about 0.4 to about 1.0 g/10 min.4. The film of claim 1 , wherein the polyethylene copolymer has a flow index (I) of about 5.0 to about 25.0 g/10 min.5. The film of claim 1 , wherein the polyethylene copolymer has an I/Iof about 18.0 to about 28.0.6. The film of claim 1 , wherein the film has a dart drop impact of about 10.0 to about 20.0 g/μm.7. The film of claim 1 , wherein the polyethylene copolymer has a Mw≥about 100 claim 1 ...

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Номер записи: 93
31-01-2019 дата публикации

THERMOPLASTIC FORMULATION WITH IMPROVED ADHESION

Номер: US20190031853A1
Автор: CIL Engin, FRICK Karsten, KRÜGER Christian
Принадлежит: SIKA TECHNOLOGY AG

A thermally expandable composition, including at least one polymer P, cross-linkable by peroxide, at least one peroxide, preferably at least one acrylate, at least one blowing agent B, preferably at least one activator for the blowing agent, and at least one epoxide group terminated polymer of the formula (I), 2. Thermally expandable composition according to claim 1 , wherein m has a value of 2.3. Thermally expandable composition according to claim 1 , wherein the blowing agent B comprises azodicarbonamide and/or 4 claim 1 ,4′-oxybis(benzenesulphonyl hydrazide).4. Thermally expandable composition according to claim 1 , wherein the acrylate A comprises dipentaerythritol pentaacrylate and/or trimethylolpropane trimethacrylate.5. Thermally expandable composition according to claim 1 , wherein the polyurethane polymer PU is a reaction product of a polyisocyanate and a polyether polyol and optionally a hydroxyl-functional polybutadiene polyol.6. Thermally expandable composition according to claim 1 , wherein the peroxide comprises di-(2-tert.-butyl-peroxyisopropyl)-benzene.7. Thermally expandable composition according to claim 1 , wherein the polymer P comprises ethylene vinyl acetate and/or ethylene butyl acrylate.81212. Thermally expandable composition according to claim 1 , wherein the polymer P comprises or essentially consists of at least two polymers P and P claim 1 , wherein P exhibits a melt flow index (MFI) of between 100 and 200 g/10 min claim 1 , and P exhibits a melt flow index of between 0.1 and 60 g/10 min claim 1 , wherein MFI is determined by ASTM D1238.10. Baffle and/or reinforcement element for hollow structures claim 1 , wherein the element comprises or essentially consists of a thermally expandable composition according to .11. Baffle and/or reinforcement element of claim 10 , wherein that the element comprises a carrier on which the thermally expandable composition is deposited or attached claim 10 , wherein the carrier is made of a thermoplastic ...

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Номер записи: 94
31-01-2019 дата публикации

HETEROPHASIC PROPYLENE COPOLYMER WITH LOW SHRINKAGE

Номер: US20190031869A1
Автор: Grestenberger George, Kahlen Susanne, Mileva Daniela, Shutov Pavel
Принадлежит:

A heterophasic propylene copolymer (HECO) comprising a polypropylene matrix having a melt flow rate MFR(230° C.) in the range of 40 to 120 g/10 min and a comonomer content in the range of 30 to 75 mol-% for the preparation of molded articles with low CLTE. 1. Heterophasic propylene copolymer (HECO) comprising{'sub': '2', '(a) a (semi)crystalline polypropylene (PP) having a melt flow rate MFR(230° C.) measured according to ISO 1133 in the range of 40 to 120 g/10 min; and'}(b) an elastomeric propylene copolymer (ESC) dispersed in said (semi)crystalline polypropylene (PP)wherein said heterophasic propylene copolymer (HECO) has(i) a xylene cold soluble (XCS) fraction in the range of 22 to 64 wt.-%;(ii) a comonomer content in the range of 30.0 to 75.0 mol-%; and{'sub': '2', '(iii) a melt flow rate MFR(230° C.) measured according to ISO 1133 in the range of 15 to70 g/10 min and'}wherein further the intrinsic viscosity (IV) of the xylene cold soluble (XCS) fraction of said heterophasic propylene copolymer (HECO) is in the range of 1.30 to 2.20 dl/g.2. Heterophasic propylene copolymer (HECO) according to claim 1 , wherein the intrinsic viscosity (IV) of the xylene cold insoluble (XCI) fraction of the heterophasic propylene copolymer (HECO) is in the range of 1.05 to 1.45 dl/g.3. Heterophasic propylene copolymer (HECO) according to any one of the preceding claims claim 1 , wherein the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO) has a comonomer content claim 1 , preferably ethylene content claim 1 , in the range of 40.0 to 75.0 mol-%.4. Heterophasic propylene copolymer (HECO) according to any one of the preceding claims claim 1 , wherein the comonomers of the heterophasic propylene copolymer (HECO) are ethylene and/or a Cto Cα-olefin and/or the comonomers of the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO) are ethylene and/or a Cto Cα-olefin claim 1 , preferably ethylene.8. Heterophasic propylene ...

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Номер записи: 95
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: 96
30-01-2020 дата публикации

Polymerization Process

Номер: US20200031964A1
Автор: Pannell Richard B.
Принадлежит:

A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including a majority of propane under polymerizable conditions to produce a polyolefin polymer is provided. 1. A polymerization process , the process comprising contacting one or more monomers , at least one catalyst system , and a condensing agent comprising a majority of propane under polymerizable conditions to produce a polyolefin polymer.2. The process of claim 1 , wherein the production rate of the polyolefin polymer is at least 5% greater than the same process polymerizing with a condensing agent consisting essentially of isopentane.3. The process of claim 1 , wherein the polyolefin density (ASTM D1505) is ≤0.912 g/cmand the space time yield is >14.0 lb/ft3/hr (224. kg/m/hr).4. The process of claim 1 , wherein the space time yield is >17.5 lb/ft3/hr (280. kg/m/hr)5. The process of claim 1 , wherein the production rate when producing a polyolefin polymer having density ≤0.912 g/cmis ≥80% of the production rate when producing a polyolefin polymer having a density ≥0.918 g/cm claim 1 , density measured by ASTM D1505.6. The process of claim 1 , wherein the reactor pressure is from 22 to 29 barg.7. The process of claim 1 , wherein the reactor pressure is from 26 to 29 barg.8. The process of claim 1 , wherein the condensing agent comprises ≥25 mol % propane.9. The process of claim 1 , wherein the condensing agent comprises a majority of propane.10. The process of claim 1 , wherein the condensing agent further comprises at least one C-Ccondensing agent.11. The process of claim 10 , wherein the at least one C-Ccondensing agent comprises n-butane claim 10 , isobutane claim 10 , n-pentane claim 10 , isopentane claim 10 , 2 claim 10 ,2-dimethylpropane claim 10 , n-hexane claim 10 , isohexane claim 10 , n-heptane claim 10 , n-octane claim 10 , or mixtures thereof.12. The process of claim 1 , wherein the mole ratio of the propane to the at least one C-Ccondensing ...

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Номер записи: 97
30-01-2020 дата публикации

Process for producing a coated pipe

Номер: US20200032095A1
Автор: Jari Äärilä, Jarmo Kela, Jouni Purmonen
Принадлежит: Borealis AG

The present invention deals with a process for producing a coated pipe. The process comprises (i) homopolymerising ethylene or copolymerising ethylene and an α-olefin comonomer in a first polymerisation step in the presence of a polymerisation catalyst to produce a first ethylene homo- or copolymer having a density of from 940 to 980 kg/m 3 and a melt flow rate MFR 2 of from 1 to 2000 g/10 min; (ii) homopolymerising ethylene or copolymerising ethylene and an α-olefin comonomer in a second polymerisation step in the presence of a first ethylene homo- or copolymer to produce a first ethylene polymer mixture comprising the first ethylene homo- or copolymer and a second ethylene homo- or copolymer, said first ethylene polymer mixture having a density of from 940 to 980 kg/m 3 and a melt flow rate MFR 2 of from 10 to 2000 g/10 min; (iii) copolymerising ethylene and an α-olefin comonomer in a third polymerisation step in the presence of the first ethylene polymer mixture to produce a second ethylene polymer mixture comprising the first ethylene polymer mixture and a third ethylene copolymer, said second ethylene polymer mixture having a density of from 915 to 965 kg/m 3 , preferably from 930 to 955 kg/m 3 and a melt flow rate MFR 5 of from 0.2 to 10 g/10 min; (iv) providing a pipe having an outer surface layer; (v) applying a coating composition onto the pipe outer surface layer to form a top coat layer, wherein the coating composition comprises the second ethylene polymer mixture.

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Номер записи: 98
31-01-2019 дата публикации

MACROMOLECULAR CONJUGATES FOR VISUALIZATION AND SEPARATION OF PROTEINS AND CELLS

Номер: US20190033300A1
Автор: CIGLER Petr, KNEDLIK Tomas, KONVALINKA Jan, MAJER Pavel, NAVRATIL VACLAV, Sacha Pavel, SCHIMER Jiri, SEDLAK FRANTISEK, STROHALM Jiri, SUBR Vladimir, TYKVART JAN, ULBRICH Karel
Принадлежит:

A macromolecular water-soluble conjugates based on synthetic copolymers to which at least one affinity tag, at least one imaging probe and at least one targeting ligand are bound via covalent bonds. The macromolecular conjugate may be used in identification, visualization, quantification or isolation of proteins and/or cells. 2. The method according to claim 1 , wherein the molecular weight of the conjugate is in the range of 1000 to 500000 g/mol.3. The method according to claim 1 , wherein the targeting ligand is a moiety capable of selectively binding to the target protein claim 1 , wherein the targeting ligand is selected from the group consisting of an inhibitor or substrate of the targeted enzyme claim 1 , an agonist or antagonist of the targeted receptor claim 1 , and a ligand of the target protein resin.4. The method according to claim 1 , wherein the targeting ligand may be attached to the synthetic copolymer via a linker claim 1 , a peptide claim 1 , a nucleic acid claim 1 , or an oligosaccharide.5. The method according to claim 1 , wherein the affinity tag is selected from biotin claim 1 , His-tag claim 1 , FLAG tag claim 1 , HA tag claim 1 , Strep-tag claim 1 , Avi-Tag claim 1 , GST-tag claim 1 , c-myc-tag claim 1 , V5-tag claim 1 , E-tag claim 1 , S-tag claim 1 , SBP-tag claim 1 , poly(Glu)-tag claim 1 , and calmodulin.6. The method according to claim 1 , wherein the imaging probe is selected from the group comprising fluorescent moieties claim 1 , radionuclides and metal complexes.7. The method according to claim 6 , wherein the imaging probe is selected from the group consisting of fluorophores with an excitation maximum in the range of 350 to 850 nm claim 6 , lanthanide complexes claim 6 , and radionuclide complexes Cu claim 6 , Ga claim 6 , F claim 6 , Tc claim 6 , I claim 6 , I claim 6 , I claim 6 , Co claim 6 , Ga claim 6 , Cu claim 6 , In claim 6 , Y.8. The method according to wherein the method of identification claim 1 , visualization claim 1 , ...

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Номер записи: 99
04-02-2021 дата публикации

Olefin polymerization activators

Номер: US20210032382A1
Автор: David M. PEARSON, David R. Wilson, Jerzy Klosin, Rafael HUACUJA, Richard J. Keaton, Sukrit MUKHOPADHYAY, Todd D. SENECAL, William H.H. Woodward
Принадлежит: Dow Global Technologies LLC

Embodiments of this disclosure include processes of polymerizing olefins, the process comprising contacting ethylene and a (C 3 -C 40 )alpha-olefin comonomer in the presence of a catalyst system, the catalyst system comprising a Group IV metal-ligand complex and an ionic metallic activator complex, the ionic metallic activator complex comprising an anion and a countercation, the anion having a structure according to formula (I):formula (I)

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Номер записи: 100