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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 743. Отображено 107.
15-12-1983 дата публикации

COMPOSITION AND METHOD OF PESTICIDE CAPSULATING

Номер: BG0000034899A3
Принадлежит:

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07-10-2011 дата публикации

MAGNETRON

Номер: FR0002958450A1
Принадлежит: E2V TECHNOLOGIES (UK) LIMITED

Une cathode d'un magnétron ayant une extension radiale destinée à contenir les bornes de la cathode 6, 7 est supportée par des bras de support de cathode 3, 4 beaucoup plus courts, étant donné que ces bras sont montés dans une paroi d'extrémité 18 de l'extension radiale qui est positionnée plus près de l'extrémité de cathode de l'extension radiale que de l'autre extrémité. Cela dévie les éventuelles vibrations vers une bande de fréquences plus élevé, qui risque moins d'être excitée dans l'éventualité où le magnétron serait déplacé rapidement, comme dans un système d'accélération linéaire utilisé pour la radiothérapie.

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29-08-2014 дата публикации

ROTATING RECTIFIER FOR AN ELECTRICAL MACHINE

Номер: FR0003002705A1
Принадлежит: GE AVIATION SYSTEMS LLC

Machine électrique (10) pourvue d'un redresseur (32) disposé dans un arbre rotatif (24) de la machine électrique (10) pour convertir en courant continu le courant alternatif de sortie de la machine électrique (10) avant la transmission de l'électricité depuis la machine électrique (10).

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04-11-2016 дата публикации

CARBON-COATED PARTICLES

Номер: FR0003035657A1
Принадлежит:

L'invention porte sur un procédé pour produire des particules enrobées de carbone, le procédé comprenant enrober des particules noyaux avec une couche de carbone dans un réacteur à noir de carbone ou une section de finition de celui-ci, pour former les particules enrobées de carbone, les particules noyaux étant des particules noyaux exemptes de carbone, des particules noyaux à noir de carbone plasma ou des particules noyaux préformées. L'invention porte également sur des particules enrobées obtenues selon ce procédé.

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24-11-2017 дата публикации

ROTATING RECTIFIER FOR AN ELECTRICAL MACHINE

Номер: FR0003002705B1
Принадлежит: GE AVIATION SYSTEMS LLC

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23-01-2008 дата публикации

SOLID PHARMACEUTICAL COMPOSITIONS THAT CONTAIN PREGABALINA

Номер: AR0000058175A1
Принадлежит:

Se describe una composicion farmacéutica solida que contiene pregabalina. La composicion incluye un agente que forma una matriz y un agente de hinchamiento y es adecuada para la administracion oral una vez al día: Los agentes que forman una matriz incluyen mezclas de poli(acetato de vinilo) y polivinilpirrolidona, y los agentes de hinchamiento incluyen polímeros reticulados de polivinilpirrolidona, entre otros.

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12-01-2012 дата публикации

Nicam decoder with output resampler

Номер: US20120008724A1
Принадлежит: THAT Corp

A NICAM audio signal re-sampler may include a non-linear interpolator configured to interpolate in a non-linear manner between sequential digital samples that are based on a stream of demodulated NICAM audio samples. A phase differential calculator may be included that compares phase information at different resolutions.

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01-03-2012 дата публикации

Functionalizable Synthetic Hydrocarbon Fluids and Integrated Method for Production Thereof

Номер: US20120053309A1
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a process to produce a poly(alpha-olefin)(alpha, internally unsaturated, nonconjugated olefin) comprising: contacting at least one renewable feedstream with at least one lower olefin in the presence of a metathesis catalyst, wherein a mixture of at least one C 4 to C 40 linear alpha-olefin and at least one alpha, internally unsaturated, nonconjugated olefin is produced; and contacting the mixture with a metallocene catalyst system, wherein a poly(alpha-olefin)(alpha, internally unsaturated, nonconjugated olefin) is produced.

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01-11-2012 дата публикации

Led night-light

Номер: US20120275194A1
Принадлежит: Mary Elle Fashions Inc

An LED night-light generally includes a standard night-light assembly for an incandescent light bulb retrofit with an LED. A housing has an interior surface defining a cylindrical opening. The interior surface has threads adapted to mate with a threaded end of the incandescent light bulb. First and second prongs extend out of the housing and are configured for insertion into an electrical outlet. A groove is in the interior surface of the housing. A disk is received in the groove and mounts the LED to the housing so that the standard night-light assembly is retrofit as an LED night-light.

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24-10-2013 дата публикации

NICAM Decoder with Output Resampler

Номер: US20130282385A1
Принадлежит: THAT Corp

A NICAM audio signal re-sampler may include a non-linear interpolator configured to interpolate in a non-linear manner between sequential digital samples that are based on a stream of demodulated NICAM audio samples. A phase differential calculator may be included that compares phase information at different resolutions.

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03-02-2022 дата публикации

On-Line Adjustment of Mixed Catalyst Ratio and Olefin Polymerization

Номер: US20220033535A1
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure provides processes for polymerizing olefin(s). In at least one embodiment, a method for producing a polyolefin is provided. The method includes contacting a first composition and a second composition in a line to form a third composition. The first composition includes a contact product of a first catalyst, a second catalyst, a support, a first activator, and a diluent, and the mol ratio of first catalyst to second catalyst is from 90:10 to 40:60. The second composition includes a contact product of the second catalyst, a second activator, and a second diluent. The third composition includes a mol ratio of first catalyst to second catalyst of from 89:11 to 10:90. The method includes introducing the third composition from the line into a gas-phase fluidized bed reactor, exposing the third composition to polymerization conditions, and obtaining a polyolefin.

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03-02-2022 дата публикации

On-Line Adjustment of Mixed Catalyst Ratio By Trim and Olefin Polymerization with the Same

Номер: US20220033536A1
Принадлежит: ExxonMobil Chemical Patents Inc

In an embodiment, a method for producing a polyolefin is provided. The method includes: contacting a first composition and a second composition in a line to form a third composition, wherein: the first composition comprises a contact product of a first catalyst, a second catalyst, a support, and a diluent, wherein the mol ratio of second catalyst to first catalyst is from 60:40 to 40:60, the second composition comprises a contact product of the second catalyst and a second diluent; introducing the third composition from the line into a gas-phase fluidized bed reactor; exposing the third composition to polymerization conditions; and obtaining a polyolefin.

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01-02-2018 дата публикации

Scrubbing article and method of making same

Номер: US20180028037A1
Принадлежит: 3M Innovative Properties Co

A scrubbing article ( 10 ) including a substrate ( 12 ) and an e-beam treated texture layer ( 14 ) on a surface of the substrate ( 12 ). The substrate ( 12 ) comprises a material suitable for use as a scrubbing article. The e-beam treated texture layer ( 14 ) is a resin-based material forming a textured abrasive layer ( 14 ) on the surface of the substrate ( 12 ).

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18-02-2021 дата публикации

Jaw members for surgical instruments and surgical instruments incorporating the same

Номер: US20210045768A1
Принадлежит: COVIDIEN LP

A surgical instrument includes a support frame defining first and second non-circular apertures each defining at least one stop surface, and a jaw member having a structural body including a proximal flange portion and an elongated distal portion extending distally from the proximal flange portion. A jaw liner is engaged with the elongated distal portion and defines a tissue-contacting surface. A first and a second pivot boss protrude from opposite sides of the proximal flange portion and at least partially into the first and second non-circular apertures, respectively. Each pivot boss is non-circular and defines at least one stop surface configured to mate with the at least one stop surface of the respective non-circular aperture to stop rotation of the jaw member before the jaw liner is forced into contact with a blade from the surgical instrument. A surgical instrument including such a jaw member is also provided.

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05-03-2020 дата публикации

Minimally-invasive surgical instrument including three-dimensional (3d) ultrasound imaging and focused ultrasound treatment capabilities

Номер: US20200069323A1
Автор: Matthew S. Cowley
Принадлежит: COVIDIEN LP

A surgical system includes a surgical instrument having a shaft and an end effector extending distally from the shaft. The end effector includes a plurality of ultrasound sensors supported about a support ring. The ultrasonic sensors are rotatable between an imaging orientation, wherein, the ultrasound sensors are directed in generally parallel orientations relative to one another for imaging tissue in an imaging mode, and at least one treatment orientation, wherein the ultrasound sensors are directed towards a common focus point for treating tissue in a treatment mode.

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19-03-2020 дата публикации

High density coil design and process

Номер: US20200090854A1
Принадлежит: Hutchinson Technology Inc

Devices including a substrate and a plurality of coil portions disposed on the substrate. The plurality of coil portions electrically coupled to form a coil structure.

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13-05-2021 дата публикации

Surgical instrument with selectively actuated gap-setting features for end effector

Номер: US20210137544A1
Принадлежит: Cilag GmbH International

A surgical instrument, has an end effector that includes an ultrasonic blade, and a clamp arm that moves relative to the ultrasonic blade from an opened position toward an intermediate position and a closed position. The clamp arm is offset from the ultrasonic blade to define a predetermined gap in the intermediate position between the opened position and the closed position. A clamp arm actuator connects to the clamp arm and moves from an opened configuration to a closed configuration to direct the clamp arm from the opened position toward the intermediate position and the closed position. A spacer connects with the clamp arm to inhibit movement of the clamp arm from the intermediate position toward the closed position for maintaining the predetermined gap between the clamp arm and the ultrasonic blade.

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01-09-2022 дата публикации

Metallocenes and Methods Thereof

Номер: US20220275015A1
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure provides metallocene catalyst compounds including at least one —Si— containing linker, catalyst systems including such compounds, and uses thereof. Catalyst compounds of the present disclosure can be hafnium-containing compounds having one or more cyclopentadiene ligand(s) substituted with one or more silyl neopentyl groups and linked with at least one —Si-containing linker. In another class of embodiments, the present disclosure is directed to polymerization processes to produce polyolefin polymers from catalyst systems including one or more olefin polymerization catalysts, at least one activator, and an optional support.

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02-05-2019 дата публикации

Mixed Catalyst Systems with Four Metallocenes on a Single Support

Номер: US20190127502A1
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes four different catalysts, a support material and an activator. The catalyst system may be used for preparing polyolefins, such as polyethylene.

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01-09-2022 дата публикации

Systems and methods for laboratory deck setup verification

Номер: US20220276274A1
Принадлежит: Beckman Coulter Inc

A laboratory workstation for preparing a sample according to a programmed protocol. The laboratory workstation may include a display device configured to display an instruction for loading a first item of labware onto a deck of the laboratory workstation at a position on the deck specified by the programmed protocol; an imaging device configured to monitor the deck of the laboratory workstation by creating one or more images of the deck; and a processor configured to recognize, in the one or more images created by the imaging device, an item of labware loaded onto the deck by an operator. In some embodiments, the processor may be configured to indicate on the display device whether the recognized item of labware loaded by the operator is arranged on the deck in accordance with the programmed protocol.

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29-09-2022 дата публикации

Surgical staple cartridge

Номер: US20220304692A1
Принадлежит: COVIDIEN LP

A staple cartridge is adapted to enhance cell migration towards a wound site when staples are placed in tissue. In order to enhance cell migration, the staples in the staple cartridge are adapted to create an electrical potential within the tissue in the area of a wound or cut line. More specifically, the staples are arranged in spaced rings, wherein the staples in the spaced rings are formed of dissimilar metals having different anodic indexes to create a voltage gradient in the tissue to enhance cell migration toward the cut line.

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16-06-2016 дата публикации

Systems and methods for monitoring physiology with unable-to-measure alerts

Номер: US20160171867A1
Принадлежит: Hoana Medical Inc

A system that observes and analyzes, and, only in the event of a significant negative condition, notifies and reports the event. In a hospital environment, the device includes a bedside unit connected to a pad or coverlet with a sensor array (placed under the patient) and also to an existing hospital nurse call system via an interface. The bedside unit is a wall-mounted unit with a display that becomes active when an alarm condition is enabled. Vigilance alarms are suspended if a patient is detected out of bed. An unable-to-measure alert is provided if the system is unable to reliably monitor. An alert message is generated and maintained on the display screen to inform a responding caregiver of the time and reason for any alarm. The system also may be adapted for use as a monitoring system for operators of motor vehicles, aircraft or other devices.

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15-07-2021 дата публикации

Dosing and mixing arrangement for use in exhaust aftertreatment

Номер: US20210213401A1
Принадлежит: Donaldson Co Inc

Dosing and mixing exhaust gas includes directing exhaust gas towards a periphery of a mixing tube that is configured to direct the exhaust gas to flow around and through the mixing tube to effectively mix and dose exhaust gas within a relatively small area. Some mixing tubes include a slotted region and a non-slotted region. Some mixing tubes include a louvered region and a non-louvered region. Some mixing tubes are offset within a mixing region of a housing.

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15-07-2021 дата публикации

Deadbolt assembly

Номер: US20210214967A1
Автор: Matthew S. Graham
Принадлежит: Schlage Lock Co LLC

An example system includes a deadbolt assembly including a housing, a traveler positioned in the housing, and a bolt including a ramp arm engaged with the traveler. The housing may include a first deadlocking component, and the traveler may include a second deadlocking component. The bolt is movable between a distal extended position and a proximal retracted position. When the bolt is pushed in the distal direction by an external force, the ramp arm urges the traveler in a lateral direction, and the first and second deadlocking components engage, deadlocking the bolt.

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06-08-2015 дата публикации

System and method including thermal cycler modules

Номер: US20150217291A1
Принадлежит: Beckman Coulter Inc

Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. In some cases, the system can be used for PCR processing. The different processing locations may include a preparation location where samples can be prepared and an analysis location where samples can be analyzed. To assist with the preparation of samples, the system may also include a number of processing stations which may include processing lanes. During the analysis of samples, in some cases, thermal cycler modules and an appropriate optical detection system can be used to detect the presence or absence of certain nucleic acid sequences in the samples. The system can be used to accurately and rapidly process samples.

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04-07-2019 дата публикации

Estimating state of ultrasonic end effector and control system therefor

Номер: US20190201073A1
Принадлежит: Individual

Various aspects of a generator, ultrasonic device, and method for estimating a state of an end effector of an ultrasonic device are disclosed. The ultrasonic device includes an electromechanical ultrasonic system defined by a predetermined resonant frequency, including an ultrasonic transducer coupled to an ultrasonic blade. A control circuit measures a complex impedance of an ultrasonic transducer, wherein the complex impedance is defined as Z g  ( t ) = V g  ( t ) I g  ( t ) . The control circuit receives a complex impedance measurement data point and compares the complex impedance measurement data point to a data point in a reference complex impedance characteristic pattern. The control circuit then classifies the complex impedance measurement data point based on a result of the comparison analysis and assigns a state or condition of the end effector based on the result of the comparison analysis.

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05-08-2021 дата публикации

Systems and methods for utilizing sensor-based vehicle telematics data to adjust a variable vehicle obligation arrangement

Номер: US20210241369A1

Vehicle usage-based data, including telematics data, may be utilized to generate and/or adjust one or more terms (e.g., a variable interest rate and/or variable principle amount) of a variable vehicle loan. Telematics data may include, for example, data generated via a vehicle mounted and/or mobile electronic device-mounted sensors. The one or more terms may be additionally or alternatively be adjusted based upon transportation metrics associated with usage of the vehicle by a transportation network company (TNC) and/or TNC driver.

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05-09-2019 дата публикации

Activity-based probe compounds, compositions, and methods of use

Номер: US20190270722A1
Принадлежит: Leland Stanford Junior University

Activity-based probe compounds for use in labeling a cysteine protease are provided. The compounds are targeted to the protease through a specific targeting element. The compounds additionally include a detectable element, such as a fluorescent label, a radiolabel, or a chelator. In some cases, the compounds additionally include a quenching element that is released upon reaction with the protease. Also provided are compositions comprising the compounds and methods for using the compounds, for example in labeling a protease in an animal and in visualizing a tumor in an animal.

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13-12-2018 дата публикации

Surface mount technology device

Номер: US20180359847A1
Принадлежит: Northrop Grumman Systems Corp

A surface mount technology (SMT) device can include an SMT interface on a given side of the SMT device. The SMT interface can include an interface ground plane formed of conductive material. The SMT interface can also include a plurality of signal pads formed of the conductive material. Each signal pad can be encircled by one of a plurality of isolation regions formed from a non-conductive region of the SMT interface. The SMT device is configured for mounting on a printed wiring board (PWB) that includes a board interface having substantially the same shape at the SMT interface.

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12-11-2020 дата публикации

Electrically conductive tread chimney compound

Номер: US20200354547A1
Принадлежит: Cooper Tire and Rubber Co

A rubber composition for a tire tread chimney component includes a sulfur-vulcanizable elastomer and an electrically conductive polymer. The rubber composition is further defined by an absence of electrically conductive carbon black. The sulfur-vulcanizable elastomer is selected from the group consisting of natural rubber, polybutadiene, polyisoprene, styrene butadiene rubber, nitrile rubber, and combinations thereof. The sulfur-vulcanizable elastomer and the electrically conductive polymer are substantially evenly mixed together. In the tire, and upon curing, the tire tread chimney component provides a dissipative pathway for static electricity from the tire to the ground in operation.

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03-04-2012 дата публикации

Processes for making multimodal molecular weight distribution polyolefins

Номер: US8148470B1
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a process to make a multimodal polyolefin composition comprising: (i) contacting at least one first olefin monomer with a mixed catalyst system, under polymerization conditions, to produce at least a first polyolefin component having a Mw of 5,000 g/mol to 600,000 g/mol, wherein the mixed catalyst system comprises: (a) at least one polymerization catalyst comprising a Group 4 or Group 5 transition metal; (b) at least one organochromium polymerization catalyst; (c) an activator; and (d) a support material; (ii) thereafter, contacting the first polyolefin component/mixed catalyst system combination with a molecular switch; (iii) contacting the first polyolefin component/mixed catalyst system combination with at least one second olefin monomer, which may be the same or different, under polymerization conditions; and (iv) obtaining a multimodal polyolefin composition.

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12-07-2012 дата публикации

Processes for making multimodal molecular weight distribution polyolefins

Номер: WO2012067777A3
Принадлежит: ExxonMobil Chemical Patents Inc.

This invention relates to a process to make a multimodal polyolefin composition comprising: (i) contacting at least one first olefin monomer with a mixed catalyst system, under polymerization conditions, to produce at least a first polyolefin component having a Mw of 5,000 g/mol to 600,000 g/mol, wherein the mixed catalyst system comprises: (a) at least one polymerization catalyst comprising a Group 4 or Group 5 transition metal; (b) at least one organochromium polymerization catalyst; (c) an activator; and (d) a support material; (ii) thereafter, contacting the first polyolefin component/mixed catalyst system combination with a molecular switch; (iii) contacting the first polyolefin component/mixed catalyst system combination with at least one second olefin monomer, which may be the same or different, under polymerization conditions; and (iv) obtaining a multimodal polyolefin composition.

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08-04-2014 дата публикации

Processes for making multimodal molecular weight distribution polyolefins

Номер: US8691714B2
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a process to make a multimodal polyolefin composition comprising: (i) contacting at least one first olefin monomer with a mixed catalyst system, under polymerization conditions, to produce at least a first polyolefin component having a Mw of 5,000 g/mol to 600,000 g/mol, wherein the mixed catalyst system comprises: (a) at least one polymerization catalyst comprising a Group 4 or Group 5 transition metal; (b) at least one organochromium polymerization catalyst; (c) an activator; and (d) a support material; (ii) thereafter, contacting the first polyolefin component/mixed catalyst system combination with a molecular switch; (iii) contacting the first polyolefin component/mixed catalyst system combination with at least one second olefin monomer, which may be the same or different, under polymerization conditions; and (iv) obtaining a multimodal polyolefin composition.

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28-07-2020 дата публикации

Supported catalyst systems and processes for use thereof

Номер: US10723819B2
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes bridged hafnium metallocene compound, an unbridged metallocene compound, a support material and an activator. The catalyst system may be used for preparing polyolefins.

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23-08-2018 дата публикации

Supported catalyst systems and processes for use thereof

Номер: WO2018151903A1
Принадлежит: ExxonMobil Chemical Patents Inc.

This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes bridged hafnium metallocene compound, an unbridged metallocene compound, a support material and an activator. The catalyst system may be used for preparing polyolefins.

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24-11-2020 дата публикации

Mixed catalysts with 2,6-bis(imino)pyridyl iron complexes and bridged hafnocenes

Номер: US10844150B2
Принадлежит: ExxonMobil Chemical Patents Inc

The present invention provides a supported catalyst system comprising: a bridged group 4 metallocene compound, an iron compound, specifically a 2,6-bis(imino)pyridyl iron complex, a support material and an activator. The present invention further provides a process for polymerization of monomers (such as olefin monomers) comprising contacting one or more monomers with the above supported catalyst systems.

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07-07-2020 дата публикации

Mixed catalyst systems with four metallocenes on a single support

Номер: US10703838B2
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes four different catalysts, a support material and an activator. The catalyst system may be used for preparing polyolefins, such as polyethylene.

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23-02-2021 дата публикации

Catalyst systems and polymerization processes for using the same

Номер: US10926250B2
Принадлежит: ExxonMobil Chemical Patents Inc

A catalyst system including the product of the combination of an unbridged Group 4 metallocene compound and a 2,6-bis(imino)pyridyl iron complex is provided. A process for the polymerization of monomers (such as olefin monomers) and a polymer produced therefrom are also provided.

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15-12-2020 дата публикации

Mixed catalyst systems containing bridged metallocenes with a pendant group 13 element, processes for making a polymer product using same, and products made from same

Номер: US10865258B2
Принадлежит: ExxonMobil Chemical Patents Inc

A mixed metallocene catalyst system can comprise at least one metallocene catalyst compound comprising a structure represented by formula (A) below and optionally at least one other metallocene catalyst compound having a structure represented by formula (B) below: A mixed metallocene catalyst system can additionally include a non-coordinating anion type activator comprising a supported alumoxane or aluminum alkyl, and optionally a scavenger. A process for making a polymeric product can comprise: contacting a C 2 -C 22 alpha-olefin feed with the catalyst system to obtain a polymerization reaction mixture; and obtaining a polymer product from the polymerization reaction mixture. A polymer product can be made by the process.

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01-12-2020 дата публикации

Bridged metallocene catalysts with a pendant group 13 element, catalyst systems containing same, processes for making a polymer product using same, and products made from same

Номер: US10851187B2
Принадлежит: ExxonMobil Chemical Patents Inc

A metallocene catalyst compound can comprise a structure represented by formula (F-MC) below comprising a first cyclopentadienyl ring with carbon atoms directly connected with R 1 , R 2 , R 4 , and R 5 , and a second cyclopentadienyl ring with carbon atoms directly connected with R 10 , R 11 , R 12 , and R 13 , and a bridging group (BG) directly connecting the first and second cyclopentadienyl rings A catalyst system can include the metallocene compound, a non-coordinating anion type activator comprising a supported alumoxane or aluminum alkyl, and optionally a scavenger. A process for making a polymeric product can comprise: contacting a C2-C22 alpha-olefin feed with the catalyst system to obtain a polymerization reaction mixture; and obtaining a polymer product from the polymerization reaction mixture. A polymer product can be made by the process to exhibit at least an Mn from 7000 g/mol to 70000 g/mol and a PDI from 4.1 to 9.0.

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17-12-2019 дата публикации

Production of polyolefins with internal unsaturation structures using a metallocene catalyst system

Номер: US10508166B2
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a process to polymerize olefins, particularly to produce ethylene polymers with internal unsaturation structures.

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04-08-2020 дата публикации

Metallocene catalysts, catalyst systems, and methods for using the same

Номер: US10730038B2
Принадлежит: ExxonMobil Chemical Patents Inc

Disclosed herein is a catalyst compound represented by Formula (I) or Formula (II): M is a group 4 metal. Each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 is independently hydrogen, or a C1-C50 substituted or unsubstituted hydrocarbyl, halocarbyl, silylcarbyl, alkoxyl, siloxyl, or one or more of R 1 and R 2 , R 2 and R 3 , R 3 and R 4 , R 5 and R 6 , R 6 and R 7 , and R 7 and R 8 are joined to form cyclic a saturated or unsaturated ring. Each X is independently a halide or C1-C50 substituted or unsubstituted hydrocarbyl, hydride, amide, alkoxide, sulfide, phosphide, halide, or a combination thereof, or two Xs are joined together to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene. Also disclosed is a method for using the catalyst compound in a catalyst system to produce polyolefin polymers.

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12-12-2019 дата публикации

Catalyst systems including two hafnocene catalyst compounds

Номер: WO2019236349A1
Принадлежит: ExxonMobil Chemical Patents Inc.

The present disclosure relates to dual catalyst systems and processes for use thereof. The present disclosure further provides a catalyst system that is a combination of at least two hafnium metallocene catalyst compounds. The catalyst systems may be used for olefin polymerization processes. The present disclosure further provides for polymers, which can be formed by processes and catalyst systems of the present disclosure.

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14-12-2021 дата публикации

Catalyst systems including two hafnocene catalyst compounds

Номер: US11198747B2
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure relates to dual catalyst systems and processes for use thereof. The present disclosure further provides a catalyst system that is a combination of at least two hafnium metallocene catalyst compounds. The catalyst systems may be used for olefin polymerization processes. The present disclosure further provides for polymers, which can be formed by processes and catalyst systems of the present disclosure.

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02-05-2019 дата публикации

Polyethylene compositions and articles made therefrom

Номер: WO2019083609A1
Принадлежит: ExxonMobil Chemical Patents Inc.

Polyethylene compositions including at least 65 wt% ethylene derived units, based upon the total weight of the polyethylene composition, are provided.

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16-05-2019 дата публикации

Polyethylene compositions and articles made therefrom

Номер: WO2019094132A1
Принадлежит: ExxonMobil Chemical Patents Inc.

Polyethylene compositions including at least 65 wt% ethylene derived units, based upon the total weight of the polyethylene composition, are provided.

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16-05-2019 дата публикации

Polyethylene compositions and articles made therefrom

Номер: WO2019094131A1
Принадлежит: ExxonMobil Chemical Patents Inc.

Polyethylene compositions including at least 65 wt% ethylene derived units, based upon the total weight of the polyethylene composition, are provided.

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06-06-2019 дата публикации

Catalyst systems and polymerization processes for using the same

Номер: WO2019108315A1
Принадлежит: ExxonMobil Chemical Patents Inc.

Catalyst systems including more than one metallocene catalysts and processes for using the same are provided to produce poly olefin polymers such as polyethylene polymers.

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06-06-2019 дата публикации

Catalyst systems and polymerization processes for using the same

Номер: WO2019108977A1
Принадлежит: ExxonMobil Chemical Patents Inc.

A catalyst system including the product of the combination of an unbridged Group 4 metallocene compound and a 2,6-bis(imino)pyridyl iron complex is provided. A process for the polymerization of monomers (such as olefin monomers) and a polymer produced therefrom are also provided.

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06-06-2019 дата публикации

Polyethylene compositions and films made therefrom

Номер: WO2019108314A1
Принадлежит: ExxonMobil Chemical Patents Inc.

Polyethylene compositions including at least 65 wt% ethylene derived units, based upon the total weight of the polyethylene composition, are provided. Films made from these polyethylene compositions are also provided as well as processes for making the same.

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09-02-2021 дата публикации

Mixed catalysts with unbridged hafnocenes with -CH2-SiMe3 moieties

Номер: US10913808B2
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes an unbridged metallocene compound, an additional unbridged metallocene compound having a structure different than the first unbridged metallocene compound, a support material and an activator. The catalyst system may be used for preparing polyolefins.

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15-03-2022 дата публикации

Polyethylene compositions and films prepared therefrom

Номер: US11274196B2
Принадлежит: ExxonMobil Chemical Patents Inc

A polyethylene composition comprising from about 0.5 to about 20 wt % of alpha-olefin derived units other than ethylene-derived units, with the balance including ethylene-derived units, total internal unsaturations (Vy1+Vy2+T1) of from about 0.10 to about 0.40 per 1000 carbon atoms, an MI of from about 0.1 to about 6 g/10 min, an HLMI of from about 5.0 to about 40 g/10 min, a density of from about 0.890 to about 0.940 g/ml, a Tw1-Tw2 value of from about −25 to about −20° C., an Mw1/Mw2 value of from about 1.2 to about 2.0, an Mw/Mn of from about 4.5 to about 12, an Mz/Mw of from about 2.0 to about 3.0, an Mz/Mn of from about 7.0 to about 20, and a g′(vis) greater than 0.90.

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20-10-2020 дата публикации

Polyethylene compositions and articles made therefrom

Номер: US10808053B2
Принадлежит: ExxonMobil Chemical Patents Inc

Polyethylene compositions including at least 65 wt % ethylene derived units, based upon the total weight of the polyethylene composition, are provided.

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03-11-2020 дата публикации

Catalyst systems and polymerization processes for using the same

Номер: US10822434B2
Принадлежит: ExxonMobil Chemical Patents Inc

Catalyst systems including more than one metallocene catalysts and processes for using the same are provided to produce polyolefin polymers such as polyethylene polymers.

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23-02-2021 дата публикации

Polyethylene compositions and articles made therefrom

Номер: US10927202B2
Принадлежит: ExxonMobil Chemical Patents Inc

Polyethylene compositions including at least 65 wt % ethylene derived units and from 0 to 35 wt % of C 3 -C 12 olefin comonomer derived units, based upon the total weight of the polyethylene composition are provided. The polyethylene compositions have a) an RCI,m of 100 kg/mol or greater and one or both of: b) a Tw 1 -Tw 2 value of from −16 to −38° C.; and c) an Mw 1 /Mw 2 value of at least 0.9. The polyethylene compositions may be used to manufacture articles such as films.

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23-02-2021 дата публикации

Polyethylene compositions and articles made therefrom

Номер: US10927203B2
Принадлежит: ExxonMobil Chemical Patents Inc

Polyethylene compositions including at least 65 wt % ethylene derived units and from 0 to 35 wt % of C 3 -C 12 olefin comonomer derived units, based upon the total weight of the polyethylene composition are provided. The polyethylene compositions have a) an RCI,m of 100 kg/mol or greater and one or both of: b) a Tw 1 -Tw 2 value of from −16 to −38° C.; and c) an Mw 1 /Mw 2 value of at least 0.9. The polyethylene compositions may be used to manufacture articles such as films.

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02-03-2021 дата публикации

Polyethylene compositions and films made therefrom

Номер: US10934376B2
Принадлежит: ExxonMobil Chemical Patents Inc

Provided herein are polyethylene compositions with broad orthogonal composition distribution. The polyethylene compositions may comprise at least 65 wt % ethylene-derived units and from 0 to 35 wt % of C 3 to C 12 olefin comonomer-derived units, and furthermore may exhibit a reversed comonomer index (RCI,m) of 100 kg/mol or greater, a Tw 1 -Tw 2 value of from −16 to −38° C., and an Mw 1 /Mw 2 value of at least 0.9, such as 0.9 to 4. Also provided are processes for making the polyethylene compositions, as well as films made from the polyethylene compositions. Such films may feature superior film stiffness for a given polyethylene composition density, and accordingly such films in some embodiments have average MD/TD modulus and density satisfying the following equation: Avg. Modulus≥1.2*(C1*Density−C2), where C1 and C2 are constants, such as C1=2,065,292 and C2=1,872,345.

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17-09-2019 дата публикации

Supported catalyst systems and methods of using same

Номер: US10414887B2
Принадлежит: ExxonMobil Chemical Patents Inc

A catalyst system including the reaction product of a fluorided support (such as a fluorided silica support) that preferably has not been calcined at a temperature of 400° C. or more, an activator and at least a first transition metal catalyst compound; methods of making such catalyst systems, polymerization processes using such catalyst systems and polymers made therefrom.

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26-04-2018 дата публикации

Supported catalyst systems and methods of using same

Номер: WO2018075243A1
Принадлежит: ExxonMobil Chemical Patents Inc.

This invention relates to a catalyst system including the reaction product of a support (such as a fluorided silica support that preferably has not been calcined at a temperature of 400°C or more), an activator and at least two different transition metal catalyst compounds; methods of making such catalyst systems, polymerization processes using such catalyst systems and polymers made therefrom.

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08-09-2021 дата публикации

On-line adjustment of catalysts by trim and olefin polymerization

Номер: EP3873950A1
Принадлежит: ExxonMobil Chemical Patents Inc

In an embodiment, a method for producing a polyolefin includes contacting a first composition and a second composition in a line to form a third composition, wherein: the first composition comprises a contact product of a first catalyst, a second catalyst, a support, a first activator, and a diluent, wherein the mol ratio of second catalyst to first catalyst is from 60:40 to 40:60, the second composition comprises a contact product of the third catalyst, a second activator, and a second diluent, and the third composition comprises a mol ratio of the third catalyst to the second catalyst to the first catalyst of from 10:35:55 to 60:15:25, such as 30:20:30; introducing the third composition from the line into a gas-phase fluidized bed reactor; exposing the third composition to polymerization conditions; and obtaining a polyolefin.

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08-09-2021 дата публикации

On-line adjustment of mixed catalyst ratio and olefin polymerization

Номер: EP3873948A1
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure provides processes for polymerizing olefin(s). In at least one embodiment, a method for producing a polyolefin is provided. The method includes contacting a first composition and a second composition in a line to form a third composition. The first composition includes a contact product of a first catalyst, a second catalyst, a support, a first activator, and a diluent, and the mol ratio of first catalyst to second catalyst is from 90:10 to 40:60. The second composition includes a contact product of the second catalyst, a second activator, and a second diluent. The third composition includes a mol ratio of first catalyst to second catalyst of from 89:11 to 10:90. The method includes introducing the third composition from the line into a gas-phase fluidized bed reactor, exposing the third composition to polymerization conditions, and obtaining a polyolefin.

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07-05-2020 дата публикации

On-line adjustment of mixed catalyst ratio by trim and olefin polymerization with the same

Номер: WO2020092587A1
Принадлежит: ExxonMobil Chemical Patents Inc.

In an embodiment, a method for producing a polyolefin is provided. The method includes: contacting a first composition and a second composition in a line to form a third composition, wherein: the first composition comprises a contact product of a first catalyst, a second catalyst, a support, and a diluent, wherein the mol ratio of second catalyst to first catalyst is from 60:40 to 40:60, the second composition comprises a contact product of the second catalyst and a second diluent; introducing the third composition from the line into a gas-phase fluidized bed reactor; exposing the third composition to polymerization conditions; and obtaining a polyolefin.

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02-09-2020 дата публикации

Catalyst systems and polymerization processes for using the same

Номер: EP3700944A1
Принадлежит: ExxonMobil Chemical Patents Inc

Catalyst systems including more than one metallocene catalysts and processes for using the same are provided to produce poly olefin polymers such as polyethylene polymers.

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23-09-2020 дата публикации

Polyethylene compositions and articles made therefrom

Номер: EP3710499A1
Принадлежит: ExxonMobil Chemical Patents Inc

Polyethylene compositions including at least 65 wt% ethylene derived units, based upon the total weight of the polyethylene composition, are provided.

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16-06-2016 дата публикации

Olefin polymerization catalyst system comprising mesoporous organosilica support

Номер: WO2016094870A1
Принадлежит: ExxonMobil Chemical Patents Inc.

A catalyst system comprising a combination of: 1) one or more catalyst compounds comprising at least one nitrogen linkage; 2) a support comprising an organosilica material, which is a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include pyridyldiamido transition metal complexes, HN5 compounds, and bis(imino)pyridyl complexes. The organosilica material is a polymer of at least one monomer of Formula [Z 1 OZ 2 SiCH 2 ] 3 (l), where Z 1 represents a hydrogen atom, a C 1 -C 4 alkyl group, or a bond to a silicon atom of another monomer and Z 2 represents a hydroxyl group, a C1-C 4 alkoxy group, a C 1 -C 6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.

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26-03-2019 дата публикации

Olefin polymerization catalyst system comprising mesoporous organosilica support

Номер: US10239967B2
Принадлежит: ExxonMobil Research and Engineering Co

A catalyst system comprising a combination of: 1) one or more catalyst compounds comprising at least one nitrogen linkage; 2) a support comprising an organosilica material, which is a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include pyridyldiamido transition metal complexes, HN5 compounds, and bis(imino)pyridyl complexes. The organosilica material is a polymer of at least one monomer of Formula [Z1OZ2SiCH2]3(1), where Z1 represents a hydrogen atom, a C1-C4alkyl group, or a bond to a silicon atom of another monomer and Z2 represents a hydroxyl group, a C1-C4alkoxy group, a C1-C6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.

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02-05-2019 дата публикации

Catalyst systems and polymerization processes for using the same

Номер: WO2019083608A1
Принадлежит: ExxonMobil Chemical Patents Inc.

Catalyst systems including more than one metallocene catalysts and processes for using the same are provided to produce poly olefin polymers such as polyethylene polymers.

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27-10-2016 дата публикации

Catalyst composition comprising fluorided support and processes for use thereof

Номер: WO2016171807A1
Принадлежит: ExxonMobil Chemical Patents Inc.

This invention relates to a catalyst system comprising fluorided silica, alkylalumoxane activator and at least two metallocene catalyst compounds, where the first metallocene is a bridged monocyclopentadienyl group 4 transition metal compound and the second metallocene is a biscyclopentadientyl group 4 transition metal compound, where the fluorided support has not been calcined at a temperature of 400°C or more, and is preferably produced using a west mixing method, such as an aqueous method.

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12-04-2018 дата публикации

Metallocene catalysts, catalyst systems, and methods for using the same

Номер: WO2018067259A1
Принадлежит: ExxonMobil Chemical Patents Inc.

Disclosed herein is a catalyst compound represented by Formula (I) or Formula (II). M is a group 4 metal. Each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 is independently hydrogen, or a C1-C50 substituted or unsubstituted hydrocarbyl, halocarbyl, silylcarbyl, alkoxyl, siloxyl, or one or more of R 1 and R 2 , R 2 and R 3 , R 3 and R 4 , R 5 and R 6 , R 6 and R 7 , and and R 7 and R 8 are joined to form cyclic a saturated or unsaturated ring. Each X is independently a halide or C1-C50 substituted or unsubstituted hydrocarbyl, hydride, amide, alkoxide, sulfide, phosphide, halide, or a combination thereof, or two Xs are joined together to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene. Also disclosed is a method for using the catalyst compound in a catalyst system to produce polyolefin polymers.

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26-04-2018 дата публикации

Mixed catalyst systems and methods of using the same

Номер: WO2018075245A1
Принадлежит: ExxonMobil Chemical Patents Inc.

Disclosed herein is a catalyst system including a first catalyst compound represented by Formula (I): and a second catalyst compound that is a bridged or unbridged metallocene. M is a group 4 metal. X 1 and X 2 are independently a univalent C1-C20 hydrocarbyl, C1-C20 substituted hydrocarbyl, a heteroatom or a heteroatom-containing group, or X 1 and X 2 join together to form a C4-C62 cyclic or polycyclic ring structure. R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , and R 10 is independently hydrogen, C1-C40 hydrocarbyl, C1-C40 substituted hydrocarbyl, a heteroatom or a heteroatom-containing group, or two or more of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , or R 10 are joined together to form a C4-C62 cyclic or polycyclic ring structure, or a combination thereof. Q is a neutral donor group. Methods of polymerizing with the catalyst system to produce polyolefin polymers are also disclosed.

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23-08-2018 дата публикации

Group 4 catalyst compounds and process for use thereof

Номер: WO2018151904A1
Принадлежит: ExxonMobil Chemical Patents Inc.

This invention relates to metallocene compounds having a group substituted at the 3 position of at least one cyclopentadienyl ring represented by the formula -CH2-SiR'3 or -CH2- CR'3 and R is a C1 to C20 substituted or unsubstituted hydrocarbyl.

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07-02-2019 дата публикации

Mixed catalysts with 2, 6-bis(imino)pyridy| iron complexes and bridged hafnocenes

Номер: WO2019027586A1
Принадлежит: ExxonMobil Chemical Patents Inc.

The present invention provides a supported catalyst system comprising: a bridged group 4 metallocene compound, an iron compound, specifically a 2,6-bis(imino)pyridyl iron complex, a support material and an activator. The present invention further provides a process for polymerization of monomers (such as olefin monomers) comprising contacting one or more monomers with the above supported catalyst systems.

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26-12-2019 дата публикации

Polyethylene compositions and films prepared therefrom

Номер: WO2019246069A1
Принадлежит: ExxonMobil Chemical Patents Inc.

A polyethylene composition having from about 0.5 to about 20 wt% of alpha-olefin derived units other than ethylene-derived units, with the balance including ethylene-derived units, total internal unsaturations (Vy1+Vy2+T1) of from about 0.15 to about 0.40 per 1000 carbon atoms, an MI of from about 0.1 to about 6 g/10 min, an HLMl of from about 5.0 to about 40 g/10 min, a density of from about 0.890 to about 0.940 g/ml, a Tw 1 -Tw 2 value of from about -50 to about -23°C, an Mw 1 /Mw 2 value of from about 2.0 to about 3.5, an Mw/Mn of from about 4.5 to about 12, an Mz/Mw of from about 2.5 to about 3.0, an Mz/Mn of from about 15 to about 25, and a g' (vis) greater than 0.90.

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07-05-2020 дата публикации

On-line adjustment of catalysts by trim and olefin polymerization

Номер: WO2020092597A1
Принадлежит: ExxonMobil Chemical Patents Inc.

In an embodiment, a method for producing a polyolefin includes contacting a first composition and a second composition in a line to form a third composition, wherein: the first composition comprises a contact product of a first catalyst, a second catalyst, a support, a first activator, and a diluent, wherein the mol ratio of second catalyst to first catalyst is from 60:40 to 40:60, the second composition comprises a contact product of the third catalyst, a second activator, and a second diluent, and the third composition comprises a mol ratio of the third catalyst to the second catalyst to the first catalyst of from 10:35:55 to 60:15:25, such as 30:20:30; introducing the third composition from the line into a gas-phase fluidized bed reactor; exposing the third composition to polymerization conditions; and obtaining a polyolefin.

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07-05-2020 дата публикации

Mixed catalyst systems with properties tunable by condensing agent

Номер: WO2020092588A1
Принадлежит: ExxonMobil Chemical Patents Inc.

The present disclosure provides processes for polymerizing olefin(s). Methods can include contacting a first composition and a second composition in a line to form a third composition. The first composition can include a contact product of a first catalyst, a second catalyst, a support, a first activator, a mineral oil. The second composition can include a contact product of an activator, a diluent, and the first catalyst or the second catalyst. Methods can include introducing the third composition from the line into a gas-phase fluidized bed reactor, introducing a condensing agent to the line and/or the reactor, exposing the third composition to polymerization conditions, and/or obtaining a polyolefin.

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07-05-2020 дата публикации

On-line adjustment of mixed catalyst ratio and olefin polymerization

Номер: WO2020092606A1
Принадлежит: ExxonMobil Chemical Patents Inc.

The present disclosure provides processes for polymerizing olefin(s). In at least one embodiment, a method for producing a polyolefin is provided. The method includes contacting a first composition and a second composition in a line to form a third composition. The first composition includes a contact product of a first catalyst, a second catalyst, a support, a first activator, and a diluent, and the mol ratio of first catalyst to second catalyst is from 90:10 to 40:60. The second composition includes a contact product of the second catalyst, a second activator, and a second diluent. The third composition includes a mol ratio of first catalyst to second catalyst of from 89:11 to 10:90. The method includes introducing the third composition from the line into a gas-phase fluidized bed reactor, exposing the third composition to polymerization conditions, and obtaining a polyolefin.

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28-07-2021 дата публикации

Polymers comprising ethylene and c4 to c14 alpha olefin comonomers

Номер: EP3854825A1
Принадлежит: ExxonMobil Chemical Patents Inc

A polymer comprising ethylene and at least 2 mol% of one or more C 4 to C 14 alpha olefin comonomers, where the polymer has an EXE triad content, as determined by 13 CNMR, of at least 0.030, an XXX triad content, as determined by 13C NMR, of less than 0.0005, and an RCI,m of 1 to 50.

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24-01-2008 дата публикации

Twist-beam axle with additional Watt linkage

Номер: DE102006033755A1
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Eine Radaufhängung (3) für ungelenkte Räder (2) an einer Kraftfahrzeugkarosserie (4) eines Kraftfahrzeuges hat eine Verbundlenkerachse (6) mit einem Wattgestänge (12). Eine Wippe (13) des Wattgestänges (12) ist an der Kraftfahrzeugkarosserie (4) gelagert. Das Wattgestänge (12) vermeidet ein Übersteuern des Kraftfahrzeuges bei Kurvenfahrt. Da das Wattgestänge (12) einen Großteil der Radführungsaufgaben übernimmt, ist eine teilweise Entkoppelung der Radführungsaufgaben der Dämpfungsbuchsen möglich, was zu Freiheiten bezüglich der Kennlinienauslegung in Richtung deutlich höherem Fahrkomfort führt. A wheel suspension (3) for unguided wheels (2) on a motor vehicle body (4) of a motor vehicle has a torsion beam axle (6) with a Watt linkage (12). A rocker (13) of the Watt linkage (12) is mounted on the motor vehicle body (4). The Watt linkage (12) avoids oversteer of the motor vehicle when cornering. Since the Watt linkage (12) takes over a large part of the Radführungsaufgaben, a partial decoupling of the Radführungsaufgaben the damping bushings is possible, which leads to freedom in terms of the characteristic interpretation in the direction of significantly higher ride comfort.

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01-05-2008 дата публикации

System for mapping connections using RFID function

Номер: US20080100456A1
Принадлежит: CORNING OPTICAL COMMUNICATIONS LLC

There is provided a system for identifying a plurality of components via an RFID reader with an associated database and processing element. The system includes a first component with an associated first RFID transponder and a second component with an associated second RFID transponder. A third RFID transponder may be associated with the first component, wherein either the first or third RFID transponder includes stored information relating to both transponders. The first and second RFID transponders are adapted to communicate with the RFID reader to enable identification of the connection of the first component to the second component. One of the RFID transponders may be adapted to identify the other RFID transponder and store the identification information for subsequent communication to the RFID reader of identification information for both RFID transponders and the associated components. The system is adapted to create a map of the two or more components, such as components of telecommunications equipment.

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05-05-2020 дата публикации

Catalyst composition comprising fluorided support and processes for use thereof

Номер: US10640583B2
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a catalyst system comprising fluorided silica, alkylalumoxane activator and at least two metallocene catalyst compounds, where the first metallocene is a bridged monocyclopentadienyl group 4 transition metal compound and the second metallocene is a biscyclopentadientyl group 4 transition metal compound, where the fluorided support has not been calcined at a temperature of 400° C. or more, and is preferably produced using a west mixing method, such as an aqueous method.

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12-12-2019 дата публикации

Metallocenes with si-si bridges

Номер: WO2019236351A1
Принадлежит: ExxonMobil Chemical Patents Inc.

The present disclosure provides bridged metallocene catalyst compounds comprising - Si-Si- bridges, catalyst systems comprising such compounds, and uses thereof. Catalyst compounds of the present disclosure can be hafnium-containing compounds having one or more cyclopentadiene ligand(s) substituted with one or more silyl neopentyl groups and linked with an Si-Si-containing bridge. In another class of embodiments, the present disclosure is directed to polymerization processes to produce polyolefin polymers from catalyst systems comprising one or more olefin polymerization catalysts, at least one activator, and an optional support.

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22-10-2020 дата публикации

Metallocenes with two -si-si-bridges

Номер: WO2020214466A1
Принадлежит: ExxonMobil Chemical Patents Inc.

The present disclosure provides bridged metallocene catalyst compounds including at least two -Si-Si- bridges, catalyst systems including such compounds, and uses thereof. Catalyst compounds of the present disclosure can be hafnium-containing compounds having one or more cyclopentadiene ligand(s) substituted with one or more silyl neopentyl groups and linked with at least two Si-Si-containing bridges. In another class of embodiments, the present disclosure is directed to polymerization processes to produce polyolefin polymers from catalyst systems including one or more olefin polymerization catalysts, at least one activator, and an optional support.

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19-04-2022 дата публикации

Metallocenes with two -Si-Si- bridges

Номер: US11306162B2
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure provides bridged metallocene catalyst compounds including at least two —Si—Si— bridges, catalyst systems including such compounds, and uses thereof. Catalyst compounds of the present disclosure can be hafnium-containing compounds having one or more cyclopentadiene ligand(s) substituted with one or more silyl neopentyl groups and linked with at least two Si—Si-containing bridges. In another class of embodiments, the present disclosure is directed to polymerization processes to produce polyolefin polymers from catalyst systems including one or more olefin polymerization catalysts, at least one activator, and an optional support.

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28-06-2022 дата публикации

Metallocenes with Si—Si bridges

Номер: US11369949B2
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure provides bridged metallocene catalyst compounds comprising —Si—Si— bridges, catalyst systems comprising such compounds, and uses thereof. Catalyst compounds of the present disclosure can be hafnium-containing compounds having one or more cyclopentadiene ligand(s) substituted with one or more silyl neopentyl groups and linked with an Si—Si-containing bridge. In another class of embodiments, the present disclosure is directed to polymerization processes to produce polyolefin polymers from catalyst systems comprising one or more olefin polymerization catalysts, at least one activator, and an optional support.

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16-06-2016 дата публикации

Olefin polymerization catalyst system comprising mesoporous organosilica support

Номер: WO2016094866A1
Принадлежит: ExxonMobil Chemical Patents Inc.

A catalyst system comprising a combination of: 1) one or more catalyst compounds having at least one nitrogen linkage and at least one oxygen linkage to a transition metal; 2) a support comprising an organosilica material, which is a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include ONNO-type transition metal catalysts, ONYO-Type transition metal catalysts, and/ or oxadiazole transition metal catalysts. The organosilica material is a polymer of at least one monomer of Formula [z'0Z2 SiCH2]3(l), where Z 1 represents a hydrogen atom, a C 1 -C 4 alkyl group, or a bond to a silicon atom of another monomer and Z 2 represents a hydroxyl group, a C 1 -C 4 alkoxy group, a C 1 -C 6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.

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24-06-2021 дата публикации

Iron bis(imino) aryl catalysts and methods thereof

Номер: WO2021126692A1
Принадлежит: ExxonMobil Chemical Patents Inc.

The present disclosure related to iron-containing compounds including a 2,6-diiminoaryl ligand and one or more substituted hydrocarbyl substituents. Catalysts, catalyst systems, and processes of the present disclosure can provide polyolefins with high or low molecular weight, low comonomer content, narrow polydispersity indices, and broad orthogonal composition distribution. The present disclosure provides new and improved iron-containing catalysts with enhanced solubility in hydrophobic (nonpolar) solvents.

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04-11-2021 дата публикации

Linear low density polyethylene for film applications

Номер: WO2021222016A2
Принадлежит: ExxonMobil Chemical Patents Inc.

The present disclosure generally relates to catalyst systems, polyethylene compositions, and uses of such compositions in, e.g., films. In an embodiment is provided a film that includes a polyethylene composition, comprising: ethylene and a C 3 -C 40 olefin comonomer, the polyethylene composition having at least 65 wt% ethylene content and from 0 wt% to 35 wt% of a C 3 -C 40 olefin comonomer content based upon the total weight of the composition, the film having: an average of MD and TD 1% secant modulus of 43,000 psi or greater, and a Dart Drop Impact Strength of greater than 500 g/mil. In another embodiment is provided a process for producing a polyethylene composition that includes introducing ethylene and a C 3 -C 40 alpha-olefin to a catalyst system, the catalyst system comprising a first catalyst compound, a second catalyst compound, and an activator; and forming a polyethylene composition.

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04-11-2021 дата публикации

Linear low density polyethylene for film applications

Номер: WO2021222280A2
Принадлежит: ExxonMobil Chemical Patents Inc.

The present disclosure generally relates to catalyst systems, polyethylene compositions, and uses of such compositions in, e.g., films. In an embodiment is provided a film that includes a polyethylene composition, comprising: ethylene and a C 3 -C 40 olefin comonomer, the polyethylene composition having at least 75 wt% ethylene content and from 0 wt% to 25 wt% of a C 3 -C 40 olefin comonomer content based upon the total weight of the composition as determined by GPC-IR5-LS-VIS, the film having: an average of MD and TD 1% secant modulus of 42,000 psi or greater as determined by ASTM D-882, and a Dart Drop Impact of greater than 400 g/mil, as determined by ASTM D1709. In another embodiment is provided a process for producing a polyethylene composition, comprising: introducing, under first polymerization conditions, ethylene and a C 3 -C 40 alpha-olefin to a catalyst system in a reactor, the catalyst system comprising a first catalyst compound, a second catalyst compound, and an activator; and forming a polyethylene composition.

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15-06-2021 дата публикации

Heterophasic copolymers and polymerization methods

Номер: US11034827B2
Принадлежит: ExxonMobil Chemical Patents Inc

Heterophasic copolymers of propylene and an alpha olefin comonomer having a matrix phase and a fill phase, particularly, a heterophasic copolymer having a high fill phase content (greater than or equal to 50%), are provided herein. Polymerization methods and catalyst systems for producing such heterophasic copolymers are also provided.

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24-07-2012 дата публикации

Class of olefin metathesis catalysts, methods of preparation, and processes for the use thereof

Номер: US8227371B2
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a metathesis catalyst comprising (i) a Group 8 metal hydride-dihydrogen complex represented by the formula: wherein M is a Group 8 metal; X is an anionic ligand; and L 1 and L 2 are neutral donor ligands; and (ii) a ligand exchange agent represented by the formula J-Y, wherein J is selected from the group consisting of hydrogen, a C 1 to C 30 hydrocarbyl, and a C 1 to C 30 substituted hydrocarbyl; and Y is selected from the group consisting of halides, alkoxides, aryloxides, and alkyl sulfonates.

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10-11-2015 дата публикации

Polymers prepared by ring opening / cross metathesis

Номер: US9181360B2
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a process for producing a polymer of a cyclic olefin and a linear mono-olefin, the process comprising contacting at least one C 5 based cyclic olefin with at least one linear mono-olefin having from two to twenty carbon atoms in the presence of an alkene metathesis catalyst, and the polymer so produced.

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07-10-2020 дата публикации

Polyethylene compositions and films made therefrom

Номер: EP3717527A1
Принадлежит: ExxonMobil Chemical Patents Inc

Polyethylene compositions including at least 65 wt% ethylene derived units, based upon the total weight of the polyethylene composition, are provided. Films made from these polyethylene compositions are also provided as well as processes for making the same.

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24-06-2021 дата публикации

Broad orthogonal distribution polyethylenes for films

Номер: WO2021126448A1
Принадлежит: ExxonMobil Chemical Patents Inc.

A polyethylene comprising of ethylene derived units and 0.5 wt% to 10 wt% C 3 to C 12 α-olefin derived units may be synthesized using a mixed catalyst that comprises rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride and a zirconium co-catalyst in a mole ratio of 50:50 to 90:10, and wherein the zirconium co-catalyst is a poor comonomer incorporator as compared to the rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride catalyst. Such a polyethylene may have a density of 0.91 g/cm 3 to 0.93 g/cm 3 , an I 2 value of 0.5 g/10 min to 2 g/10 min, an I 21 value of 25 g/10 min to 75 g/10 min, an I 21 /I 2 ratio of 25 to 75, a molar reversed-co-monomer index (RCI,m) of 30 to 180, a phase angle equal or lower than 70° at complex modulus G* of 10,000 Pa, a Θ 2 of 1.5 radians to -1.5 radians, and a low density population of 50% and 70% by weight of the polyethylene.

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07-02-2019 дата публикации

Mixed catalysts with unbridged hafnocenes with -ch2-sime3 moieties

Номер: WO2019027585A1
Принадлежит: ExxonMobil Chemical Patents Inc.

The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes an unbridged metallocene compound, an additional unbridged metallocene compound having a structure different than the first unbridged metallocene compound, a support material and an activator. The catalyst system may be used for preparing polyolefins.

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27-03-2018 дата публикации

Production of polyolefins with internal unsaturation structures using a metallocene catalyst system

Номер: US9926396B2
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a process to polymerize olefins, particularly to produce ethylene polymers with internal unsaturation structures.

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30-06-2020 дата публикации

Group 4 catalyst compounds and process for use thereof

Номер: US10696758B2
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to metallocene compounds having a group substituted at the 3 position of at least one cyclopentadienyl ring represented by the formula —CH2—SiR′3 or —CH2—CR′3 and R′ is a C1 to C20 substituted or unsubstituted hydrocarbyl.

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08-12-2011 дата публикации

Pyridyldiamido Transition Metal Complexes, Production And Use Thereof

Номер: US20110301310A1
Принадлежит: ExxonMobil Chemical Patents Inc

Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization.

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12-01-2016 дата публикации

Dispositivo intragastrico.

Номер: MX2015012419A
Принадлежит: Obalon Therapeutics Inc

Se proveen dispositivos y métodos para el tratamiento de obesidad. Más en particular, se proveen dispositivos intragástricos y dispositivos para inflado y métodos para fabricar, desplegar, inflar, monitorear y recuperar los mismos.

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05-01-2021 дата публикации

Removable fluid reservoir and ultrasonic surgical instrument including the same

Номер: US10881424B2
Автор: Matthew S. Cowley
Принадлежит: COVIDIEN LP

A fluid reservoir includes a housing having a body, a leading end, and a trailing end enclosing a fluid chamber storing fluid therein, sealed inflow and outflow ports disposed at the leading end of the housing, and a heat exchanger disposed at the trailing end of the housing. An ultrasonic surgical instrument includes a housing defining a barrel portion and a fixed handle portion extending from the barrel portion, an ultrasonic transducer received at least partially within the barrel portion of the housing, a waveguide operably coupled to the ultrasonic transducer and extending distally from the housing to a blade configured to treat tissue with ultrasonic energy produced by the ultrasonic transducer and transmitted along the waveguide, and a fluid management system disposed within the housing. The fluid reservoir is configured for releasable engagement with the fixed handle portion to facilitate cooling of the blade with fluid.

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22-05-2001 дата публикации

Resist removal by polishing

Номер: US6235636B1
Принадлежит: Advanced Micro Devices Inc

Chemical mechanical polishing for removing a hardened surface layer of photoresist in the manufacture of semiconductor devices. The use of chemical mechanical polishing allows for the removal of a hardened surface layer of photoresist that has been hardened through ion beam implantation or plasma etching. The chemical mechanical polishing process places a semiconductor wafer with a photoresist layer on a polishing pad. The photoresist layer is placed close to the polishing pad, so that the hardened surface layer of the photoresist layer is removed. A slurry is added to the polishing pad to aid in the removal of the hardened surface layer of the photoresist layer. Conventional chemical stripping is then used to remove the remaining photoresist layer.

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24-02-2015 дата публикации

System and method including thermal cycler modules

Номер: US8962308B2
Принадлежит: Beckman Coulter Inc

Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. In some cases, the system can be used for PCR processing. The different processing locations may include a preparation location where samples can be prepared and an analysis location where samples can be analyzed. To assist with the preparation of samples, the system may also include a number of processing stations which may include processing lanes. During the analysis of samples, in some cases, thermal cycler modules and an appropriate optical detection system can be used to detect the presence or absence of certain nucleic acid sequences in the samples. The system can be used to accurately and rapidly process samples.

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22-09-2015 дата публикации

System and method for controlling thermal cycler modules

Номер: US9140715B2
Принадлежит: Beckman Coulter Inc

Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. In some cases, the system can be used for PCR processing. The different processing locations may include a preparation location where samples can be prepared and an analysis location where samples can be analyzed. To assist with the preparation of samples, the system may also include a number of processing stations which may include processing lanes. During the analysis of samples, in some cases, thermal cycler modules and an appropriate optical detection system can be used to detect the presence or absence of certain nucleic acid sequences in the samples. The system can be used to accurately and rapidly process samples.

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15-03-2016 дата публикации

Reaction vessel

Номер: US9285382B2
Принадлежит: Beckman Coulter Inc

Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. In some cases, the system can be used for PCR processing. The different processing locations may include a preparation location where samples can be prepared and an analysis location where samples can be analyzed. To assist with the preparation of samples, the system may also include a number of processing stations which may include processing lanes. During the analysis of samples, in some cases, thermal cycler modules and an appropriate optical detection system can be used to detect the presence or absence of certain nucleic acid sequences in the samples. The system can be used to accurately and rapidly process samples.

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02-06-2015 дата публикации

System and method including multiple processing lanes executing processing protocols

Номер: US9046455B2
Принадлежит: Beckman Coulter Inc

Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. In some cases, the system can be used for PCR processing. The different processing locations may include a preparation location where samples can be prepared and an analysis location where samples can be analyzed. To assist with the preparation of samples, the system may also include a number of processing stations which may include processing lanes. During the analysis of samples, in some cases, thermal cycler modules and an appropriate optical detection system can be used to detect the presence or absence of certain nucleic acid sequences in the samples. The system can be used to accurately and rapidly process samples.

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