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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 246. Отображено 105.
04-04-2001 дата публикации

Dynamic memory administration for target data in small allied programme in Jave card

Номер: CN0001289967A
Принадлежит:

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22-11-2000 дата публикации

Ballast

Номер: CN0001274515A
Принадлежит:

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14-04-2004 дата публикации

包括存储器保护装置的电子装置及其保护数据的方法

Номер: CN0001145888C
Автор: CHARRON, D., D・沙龙
Принадлежит:

... 为了避免存储器被复制,提供了一个随机号码发生器,它将号码配给其中有存储器的装置。此号码随后被存在所述存储器中以用于随后的验证之用。该发生器是由以两个电阻构成的分压器形成的,其阻值的公差范围很大。本发明可用于AMPS移动通信网络之中。 ...

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30-06-1999 дата публикации

Electronic apparatus comprising memory protection device and method of protecting data in memory

Номер: CN0001221151A
Автор: CHARRON, D.
Принадлежит:

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13-09-2012 дата публикации

Dynamically Vulcanized Thermoplastic Elastomer Film

Номер: US20120232210A1
Принадлежит:

A dynamically vulcanized alloy containing an elastomer and a thermoplastic resin is prepared by a process wherein supercritical fluid is injected into the thermoplastic elastomeric material as the material is mixed in an extruder. The material is mixed under conditions such that the thermoplastic elastomeric material is dynamically vulcanized wherein the elastomer forms a discontinuous dispersed of small particles in a continuous phase of the thermoplastic resin. The DVA material may then be directly formed into film or sheets by the use of at least one set of rolls located adjacent to the extruder outlet. 1. A process to form a thermoplastic elastomeric material , the thermoplastic elastomer comprising an elastomer and a thermoplastic resin , the elastomer and the thermoplastic resin being present in a weight ratio in the range of 55:45 to 80:20 , the process comprising:a. injecting a supercritical fluid into the thermoplastic elastomeric material as the material is mixed in an extruder; andb. mixing the material under conditions such that the thermoplastic elastomeric material is dynamically vulcanized wherein the elastomer forms a discontinuous phase of small particles in a continuous phase of the thermoplastic resin.2. The process as claimed in claim 1 , wherein the supercritical fluid is an inert gas.3. The process as claimed in claim 2 , wherein the pressure in the extruder is above the supercritical pressure of the inert gas.4. The process as claimed in claim 1 , wherein the supercritical fluid is injected in the extruder downstream of an inlet feeder for the elastomer and thermoplastic resin.5. The process as claimed in claim 1 , wherein the process further comprises removing the dynamically vulcanized material from the extruder and directly forming the extruded dynamically vulcanized material into a film.6. The process as claimed in claim 5 , wherein the process further comprises passing the film through at least one set of rolls wherein the cross-sectional ...

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25-10-2012 дата публикации

METHOD AND MACHINE FOR PREPARING ESPRESSO COFFEE

Номер: US20120269944A1
Принадлежит: LA MARZOCCO, SRL

In an improved method and machine for espresso coffee there are provided one or more operating units () each of which comprises a boiler, a pump, a heating unit, a group () for aroma extraction and dispensing of the espresso coffee brew, including related conduits. Each unit () is equipped with a system for controlling and adjusting the espresso coffee brewing parameters, in particular the water pressure. 1. An improved espresso coffee machine comprising one or more operating units each of which comprises a boiler , a pump , a heating unit , a group for aroma extraction and dispensing of the espresso coffee brew , including related conduits , wherein each unit is equipped with a system for controlling and adjusting the espresso coffee brewing parameters.2. The machine according to claim 1 , comprising means for modulating the espresso coffee brew extraction pressure.3. The machine according to claim 1 , comprising a variable speed DC motor pump and manual actuating means for adjusting water outlet pressure during coffee brewing.4. The machine according to comprising means for modulating the espresso coffee brew extraction temperature.5. The machine according to comprising a central processing unit (CPU) connected to a pressure control module claim 1 , to an eventual temperature control monitor claim 1 , and to a user interface (UI) claim 1 , the central processing unit (CPU) having a port (I/O) for connection to an external memory device.6. The machine according to claim 5 , wherein different pressure profiles are stored in the central processing unit and can be called up by the user and reproduced by the pressure control monitor.7. The machine according to claim 5 , wherein different temperature profiles are stored in the central processing unit and can be called up by the user and reproduced by the temperature control monitor.8. A method for preparing espresso coffee in a machine comprising at least an operating unit where a boiler and a pump feed with hot water ...

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21-03-2013 дата публикации

Inductors and Methods for Integrated Circuits

Номер: US20130071983A1
Принадлежит:

Inductors and methods for integrated circuits that result in inductors of a size compatible with integrated circuits, allowing the fabrication of inductors, with or without additional circuitry on a first wafer and the bonding of that wafer to a second wafer without wasting of wafer area. The inductors in the first wafer are comprised of coils formed by conductors at each surface of the first wafer coupled to conductors in holes passing through the first wafer. Various embodiments are disclosed. 19-. (canceled)10. A method of forming an integrated inductor comprising:providing a first substrate;etching a pattern of holes part way through the substrate from a first surface of the first substrate;filling the holes with an conductive material;depositing and patterning a first conductive layer on the first surface of the first substrate to electrically connect the conductor in pairs of holes;temporarily gluing a carrier to the first surface of the first substrate;thinning the first substrate from a second surface opposite the first surface to expose ends of the conductor filling the holes;electrically connecting a patterned second conductive layer to the exposed ends of the conductive material filling at least some of the holes to electrically connect the patterned second conductive layer, the conductive material filling the at least some of the holes and the first conductive layer to form an electrically conductive coil.11. The method of wherein filling the holes with an conductive material comprises plating the first surface of the substrate to fill the holes and then chemical-mechanical polishing the first surface of the substrate to remove the plating between holes.12. The method of wherein thinning the first substrate from a second surface opposite the first surface to expose ends of the conductor filling the holes comprises coarse grinding claim 10 , chemical-mechanical polishing and etching.13. The method of wherein providing a first substrate comprises providing ...

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04-04-2013 дата публикации

METHOD FOR SOLDERING A CAP TO A SUPPORT LAYER

Номер: US20130083501A1
Принадлежит: STMICROELECTRONICS LTD (MALTA)

One embodiment discloses a method for soldering a cap for an integrated electronic device to a support layer, including the steps of: providing a support layer; providing a cap including a core of a first material and a coating layer of a second material, the first and second material being respectively wettable and non-wettable with respect to a solder, the coating layer being arranged so as to expose a surface of the core; coupling the cap with the support layer; and soldering the surface of the core to the support layer, by means of the solder. 1. A method comprising:providing a support layer;providing a cap that includes a core of a first material and a coating layer of a second material, said first and second materials being wettable and non-wettable, respectively, with respect to a solder, said coating layer being located around the core and exposing a surface of the core;coupling the cap with the support layer; andusing the solder, soldering the surface of the core to the support layer.2. The method according to claim 1 , wherein said core has:an upper wall extending parallel to a first direction;a side wall projecting from an outer profile of the upper wall, along a second direction which is transverse to the first direction; anda flange, said flange and said upper wall being arranged at opposite ends of the side wall, said flange projecting at least in part outwardly with respect to the side wall, and wherein said flange defines said surface of the core.3. The method according to claim 2 , wherein said second direction is substantially orthogonal to the first direction claim 2 , and said surface of the core is substantially parallel to said second direction.4. The method according to claim 2 , wherein said coating layer internally coats the side wall.5. The method according to claim 1 , wherein prior to coupling the cap with the support layer claim 1 , the method comprises:forming a soldering pad of a third material on a surface of the support layer, said ...

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25-04-2013 дата публикации

Thermoplastic Vulcanizate Composition

Номер: US20130102721A1
Принадлежит:

The disclosure is directed to a thermoplastic vulcanizate composition comprising a dynamically-cured rubber; from about 20 to about 300 parts by weight of a thermoplastic resin per 100 parts by weight rubber and from about 30 to about 250 parts by weight additional oil per 100 parts by weight rubber; wherein the rubber comprises a multimodal polymer composition cured with a curing agent, the multimodal polymer composition comprising 45 to 75 wt % of a first polymer fraction and 25 to 55 wt % of a second polymer fraction, each comprising ethylene, a C-Calpha-olefin, and a non-conjugated diene. A method of producing the thermoplastic vulcanizate is also disclosed. 1. A thermoplastic vulcanizate composition comprising a dynamically-cured rubber; and from about 20 to about 300 parts by weight of a thermoplastic resin per 100 parts by weight dynamically-cured rubber; wherein the dynamically-cured rubber comprises a multimodal polymer composition cured with a curing agent , the multimodal polymer composition comprising:{'sub': 3', '10, 'a) 45 to 75 wt % of a first polymer fraction comprising ethylene, a C-Calpha-olefin, and a non-conjugated diene, wherein the first polymer fraction has been polymerized in a first reactor in a series of two or more reactors using a first Ziegler-Natta catalyst system, wherein the first polymer fraction has a Mooney viscosity of greater than or equal to about 150 ML(1+4@125° C.);'}{'sub': 3', '10, 'b) 25 to 55 wt % of a second polymer fraction comprising ethylene, a C-Calpha-olefin, and a non-conjugated diene, wherein the second polymer fraction has been polymerized in the presence of the first polymer fraction in a subsequent reactor in the series of two or more reactors using a second Ziegler-Natta catalyst system, wherein the second polymer fraction has a Mooney viscosity of greater than or equal to 55 ML(1+4@125° C.), and less than or equal to 120 ML(1+4@125° C.); and'}c) from about 10 phr to about 50 phr of an extender oil, which is a ...

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02-05-2013 дата публикации

3D CHIP PACKAGE WITH SHIELDED STRUCTURES

Номер: US20130105950A1
Принадлежит: MAXIM INTEGRATED PRODUCTS, INC.

A 3D chip package is disclosed that includes a carrier substrate with a first cavity and a second cavity formed therein. A first structure is attached to the carrier substrate at least partially in the first cavity, and a second structure is attached to the carrier substrate at least partially in the second cavity, where the first and second structures include electrical circuitry. A shield layer may be disposed between the carrier substrate and the first structure and/or the second structure for isolating the first structure and/or the second structure at least one of electrically, magnetically, optically, or thermally. In some embodiments, the shield layer may be a dielectric shield layer for dielectrically coupling the first structure and the second structure. The first structure and the second structure may be homogeneous or heterogeneous. 1. A device comprising:a carrier substrate defining a first cavity and a second cavity;a first structure attached to the carrier substrate at least partially in the first cavity, the first structure comprising electrical circuitry;a second structure attached to the carrier substrate at least partially in the second cavity, the second structure comprising electrical circuitry; anda shield layer disposed between the carrier substrate and at least one of the first structure or the second structure for at least substantially isolating at least one of the first structure or the second structure at least one of electrically, magnetically, optically, or thermally.2. The semiconductor device as recited in claim 1 , wherein the shield layer is configured as a heat sink for thermally isolating the first structure from the second structure.3. The semiconductor device as recited in claim 2 , wherein the shield layer is connected to a conductive pillar for conducting heat away from at least one of the first structure or the second structure.4. The semiconductor device as recited in claim 1 , wherein the shield layer comprises a reflective ...

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27-06-2013 дата публикации

SEMICONDUCTOR DEVICE HAVING TRENCH CAPACITOR STRUCTURE INTEGRATED THEREIN

Номер: US20130161792A1
Принадлежит: MAXIM INTEGRATED PRODUCTS, INC.

Semiconductor devices are described that include a capacitor integrated therein. In an implementation, the semiconductor devices include a substrate. The substrate includes multiple capacitor regions, such as a first capacitor region and a second capacitor region that are adjacent to one another. Each capacitor region includes trenches that are formed within the substrate. A metal-insulator-metal capacitor is formed within the trenches and at least partially over the substrate. The trenches disposed within the first capacitor region are at least substantially perpendicular to the trenches disposed within the second capacitor region. 1. A semiconductor device comprising:a substrate;a plurality of capacitor regions disposed within the substrate, each capacitor region including a plurality of trenches disposed therein; anda metal-insulator-metal (MIM) capacitor formed within each trench of the plurality of trenches,wherein the plurality of trenches disposed within a first capacitor region of the plurality of capacitors are at least substantially perpendicular to the plurality of trenches disposed within a second capacitor region of the plurality of capacitors, the second capacitor region adjacent to the first capacitor region.2. The semiconductor device as recited in claim 1 , wherein at least trench of the plurality of trenches includes at least one of a chamfered or rounded corner for facilitating stress management.3. The semiconductor device as recited in claim 1 , wherein the metal-insulator-metal capacitor comprises a unit cell having a specific x and y stepping layout that results in overlapping of the peripheral contacts claim 1 , wherein one or more contacts are maintained at a boundary of an internal unit cell to reduce resistance.4. The semiconductor device as recited in claim 1 , further comprising a plurality of contacts is electrically connected with the metal-insulator-metal capacitor claim 1 , wherein at least one contact of the plurality of contacts is ...

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11-07-2013 дата публикации

SEMICONDUCTOR DEVICE HAVING CAPACITOR INTEGRATED THEREIN

Номер: US20130175666A1
Принадлежит: MAXIM INTEGRATED PRODUCTS, INC.

Semiconductor devices are described that include a capacitor integrated therein. In an implementation, the semiconductor devices include a substrate including a dopant material of a first conductivity type. A plurality of trenches are formed within the substrate. The semiconductor devices also include a diffusion region having dopant material of a second conductivity type formed proximate to the trenches. A capacitor is formed within the trenches and at least partially over the substrate. The capacitor includes at least a first electrode, a second electrode, and a dielectric material formed between the first and second electrodes. 1. A semiconductor device comprising:a substrate having dopant material of a first conductivity type;a plurality of trenches disposed within the substrate;a diffusion region disposed proximate to the plurality of trenches, the diffusion region having dopant material of a second conductivity type; anda metal-insulator-metal (MIM) capacitor formed within each trench of the plurality of trenches.2. The semiconductor device as recited in claim 1 , wherein the metal-insulator-metal capacitor includes a seam for facilitating stress management.3. The semiconductor device as recited in claim 1 , wherein the metal-insulator-metal capacitor includes a low-stress conductive layer to fill and seal the plurality of trenches after formation of the metal-insulator-metal capacitor.4. The semiconductor device as recited in claim 1 , wherein the metal-insulator-metal capacitor includes a first electrode claim 1 , a second electrode claim 1 , and a dielectric layer disposed between the first electrode and the second electrode.5. The semiconductor device as recited in claim 4 , wherein at least one of the first electrode or the second electrode is titanium-nitride.6. The semiconductor device as recited in claim 4 , wherein the dielectric layer is a high-k material.7. The semiconductor device as recited in claim 1 , wherein the plurality of trenches have an ...

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04-02-2016 дата публикации

Elastomeric Compositions and Their Use in Articles

Номер: US20160032091A1
Принадлежит:

A dynamically vulcanized alloy contains at least one isobutylene-containing elastomer, at least one thermoplastic resin, and an anhydride functionalized oligomer grafted to the thermoplastic resin. In the alloy, the elastomer is present as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin and the alloy is substantially absent of any sulfonamides. 2. The alloy of claim 1 , wherein the oligomer is selected from the group consisting of an alkyl claim 1 , an aryl claim 1 , and an alkenyl derived oligomer.3. The alloy of claim 1 , wherein the oligomer claim 1 , prior to anhydride functionalization claim 1 , has a molecular weight in the range of 500 to 2500.4. The alloy of claim 1 , wherein the anhydride functionality is either a succinic anhydride or a maleic anhydride.5. The alloy of claim 1 , wherein the functionalized oligomer is selected from the group consisting of poly-isobutylene succinic anhydride claim 1 , polyisobutene succinic anhydride claim 1 , polybutene succinic anhydride claim 1 , polyisopentene succinic anhydride claim 1 , polypentene succinic anhydride claim 1 , polyoctenyl succinic anhydride claim 1 , polyisooctenyl succinic anhydride claim 1 , poly-hexenyl succinic anhydride claim 1 , and poly-dodecenyl succinic anhydride.6. The alloy of claim 1 , wherein the 1) at least one isoolefin monomer is isobutylene claim 1 , isobutene claim 1 , 2-methyl-1-butene claim 1 , 3-methyl-1-butene claim 1 , 2-methyl-2-butene claim 1 , 1-butene claim 1 , 2-butene claim 1 , methyl vinyl ether claim 1 , indene claim 1 , vinyltrimethylsilane claim 1 , hexene claim 1 , or 4-methyl-1-pentene and 2) at least one multiolefin or other polymerizable monomer is isoprene claim 1 , butadiene claim 1 , 2 claim 1 ,3-dimethyl-1 claim 1 ,3-butadiene claim 1 , myrcene claim 1 , 6 claim 1 ,6-dimethyl-fulvene claim 1 , hexadiene claim 1 , cyclopentadiene claim 1 , piperylene claim 1 , styrene claim 1 , or ...

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01-03-2018 дата публикации

Dynamically Vulcanized Alloys

Номер: US20180057674A1
Автор: Ellul Maria D.
Принадлежит:

This invention relates to the preparation of a dynamically vulcanized alloy comprising at least one elastomer, at least one thermoplastic resin, graphene, and an ethylene copolymer resin. 2. The alloy as claimed in claim 1 , wherein the ethylene copolymer resin is selected at least one of ethylene vinyl acetate claim 1 , ethylene vinyl alcohol claim 1 , copolymers of ethylene with vinyl acetate claim 1 , copolymers of ethylene with alkyl acrylates claim 1 , and combinations thereof.3. The alloy as claimed in claim 1 , wherein the graphene is an organic carbon-based filler.4. The alloy as claimed in claim 1 , wherein the graphene is in the range of 4 to 15 phr.5. The alloy as claimed in claim 1 , wherein the ethylene copolymer resin has not more than 50 mol % of ethylene.6. The alloy as claimed in claim 1 , wherein the ethylene copolymer resin is ethylene vinyl alcohol.7. The alloy as claimed in claim 1 , wherein the ratio of the ethylene copolymer resin to the thermoplastic resin claim 1 , expressed in terms of phr of the elastomer claim 1 , is in the range of 0.0625 to 0.75.8. The alloy as claimed in claim 1 , wherein the alloy is further comprised of a secondary elastomer.9. The alloy as claimed in claim 8 , wherein the secondary elastomer is maleic anhydride-modified copolymer.10. The alloy as claimed in claim 1 , wherein the alloy is further comprised of at least one compatibilizer or viscosity modifier claim 1 , namely polisobutylene succinic anhydride.11. The alloy as claimed in claim 1 , wherein the thermoplastic resin is selected from at least one of polyamides claim 1 , polyimides claim 1 , polycarbonates claim 1 , polyesters claim 1 , polysulfonates claim 1 , polyactones claim 1 , polyacetals claim 1 , acrylonitrile-butadiene-styrene resins claim 1 , polyphenyleneoxide claim 1 , polyphenylene sulfide claim 1 , polystyrene claim 1 , styrene-acrylonitrile resins claim 1 , styrene maleic anhydride resins claim 1 , aromatic polyketones claim 1 , ethylene ...

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10-07-2014 дата публикации

Seed trait prediction by activity-based protein profiling

Номер: US20140193831A1
Принадлежит: Gautier Semences, Ninsar Agrosciences Sl

The present invention relates to a method of predicting a plant seed trait, such as germination rate, vigour, aging and priming, by determining the presence of a target protein, i.e. diagnostic marker, in its active state in a protein sample derived from a plant seed or plant seed lot. Thereby, the quality of a plant seed or a plant seed lot can be predicted and/or diagnosed and seeds may be distinguished on basis of their characteristics and with respect to the traits described herein. Inter alia, seeds and seed lots having high germination quality may be distinguished from seeds and seed lots having low germination quality. In particular, the method comprises contacting the protein sample or the plant seed or plant seed lot with a chemical probe comprising a warhead being able to attach to an amino acid residue in or nearby an active site of the target protein under conditions allowing the formation of a conjugate of the target protein and the chemical probe, wherein the chemical probe further comprises a reporter tag which is used to detect the conjugate, and wherein detection of the conjugate indicates the presence of the target protein in the protein sample and is used to predict or diagnose the plant seed trait. The present invention further relates to the use of such chemical probes for the prediction of plant seed traits.

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04-05-2017 дата публикации

Semiconductor device carrier tape with image sensor detectable dimples

Номер: US20170125276A1
Автор: Ivan Ellul, Jeremy Spiteri
Принадлежит: STMicroelectronics Malta Ltd

A semiconductor device carrier tape with image sensor detectable dimples is disclosed. The dimpled carrier tape is formed of a flexible strip of material. A plurality of pockets are disposed spaced apart along the length of the flexible strip of material. Each pocket is configured to hold a semiconductor device. A dimple is formed in each of the plurality of pockets where each dimple has a peripheral edge and a bottom surface. Detection of the dimple by an image sensor facilitates alignment of a semiconductor device with the pocket and precise placement of the semiconductor device in the pocket.

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25-05-2017 дата публикации

SYSTEMS AND METHODS USING AN AUTHENTICATION AND PAYMENT PROCESSING PLATFORM

Номер: US20170148028A1
Автор: WHITE-ELLUL Shirley
Принадлежит:

An electronic payment instruction file associated with a payer identifier and a payee identifier from a remote payer device may be received. Information about the electronic file may be stored into a transaction database. An authorization and payment processing server may retrieve, from the transaction database, the information about the electronic payment instruction file and automatically arrange for funds to be transferred from a payment account associated with the payer identifier to an account associated with the payee identifier. The authorization and payment processing server may then transmit a confirmation signal to the remote payer device confirming that the payment has been completed without transmitting any information to any device associated with the payee identifier at the location of the transaction. 1. A system to facilitate payments from a payer to a payee , comprising: (i) receive, from a remote payer device, an electronic payment instruction file associated with a payer identifier and a payee identifier, and', '(ii) store information about the electronic file into a transaction database;, '(a) a communication unit programmed to(b) the transaction database storing, for each of a plurality of transactions, information about the electronic payment instruction file including the payer identifier and the payee identifier; and (iii) retrieve, from the transaction database, the information about the electronic payment instruction file, including the payer identifier and the payee identifier,', '(iv) automatically arrange for funds to be transferred from a payment account associated with the payer identifier to an account associated with the payee identifier, and', '(v) transmit a confirmation signal to the remote payer device confirming that the payment has been completed without transmitting any information to any device associated with the payee identifier at the location of the transaction., '(c) an authorization and payment processing server, ...

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28-06-2018 дата публикации

Elastomeric Compositions and Their Use in Articles

Номер: US20180179372A1
Автор: Ellul Maria D.
Принадлежит:

A dynamically vulcanized alloy contains at least one isobutylene-based elastomer, at least one thermoplastic resin, a cure system, and a lubricant system. The lubricant system is comprised of a metal organic salt and a fatty acid having a phr ratio range of metal organic salt to fatty acid of 0.75:1 to 10:1. In the alloy, the elastomer is present as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin. The alloy may be formed into blown films or extruded cast sheets and is useful in various applications, including tire innerliners and hose layers, where impermeability characteristics are desired for either the particular layer or the final article. 1. A dynamically vulcanized alloy comprising:a) at least one isobutylene-based elastomer;b) at least one thermoplastic resin;d) a cure system; ande) a lubricant system comprising a metal organic salt and a fatty acid wherein the phr ratio of the metal organic acid salt to the fatty acid is 0.75:1 to 10:1,wherein the elastomer is present in the dynamically vulcanized alloy as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin.2. The alloy of claim 1 , wherein the lubricant system is present in an amount of 0.75 to 9.0 phr.3. The alloy of claim 1 , wherein the phr ratio of the cure system to the lubricant system is in the range of 2:1 to 6:1.4. The alloy of claim 1 , wherein the metal organic salt is a metal stearate.5. The alloy of claim 1 , wherein the fatty acid is a saturated fatty acid having a carbon number in the range of 10 to 26.6. The alloy of claim 1 , wherein the cure system consists essentially of 1.0 to 10 phr of a metal oxide selected from the group consisting of zinc oxide claim 1 , nanozinc oxide claim 1 , CaO claim 1 , BaO claim 1 , MgO claim 1 , AlO claim 1 , CrO claim 1 , FeO claim 1 , FeO claim 1 , and NiO.7. The alloy of claim 1 , wherein the alloy comprises 2 to 30 ...

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07-07-2016 дата публикации

COFFEE GRINDING MACHINE

Номер: US20160192809A1
Принадлежит: LA MARZOCCO S.R.L.

A coffee grinding machine including a first burr and a second burr. At least one of the first burr and the second burr is rotatable about an axis of rotation, the burrs being mutually cooperating to grind coffee. The machine includes a motor which rotates at least one of the burrs with respect to the other, wherein the axis of rotation of the motor does not coincide with the axis of rotation of the burrs so that the coffee which is ground by the grinders is directed to an output of a conveyor cone for use thereof. 110-. (canceled)11. A coffee grinding machine comprising:a first burr and a second burr, wherein at least one of the first and second burrs is rotatable about an axis of rotation, wherein the burrs are mutually cooperating to grind coffee;a motor which rotates at least one of the burrs with respect to the other one, wherein the axis of rotation of the motor does not coincide with the axis of rotation of the burrs so that the coffee which is ground by the burrs is directed to an output of a conveyor cone for use thereof;anti-static means for reducing or eliminating static charge of the ground coffee, wherein the anti-static means comprises an annular member positioned downstream of the burrs and comprising discrete anti-static elements.12. A machine according to claim 11 , wherein at least some of the discrete elements are directed towards the axis of the conveyor cone.13. A machine according to claim 11 , wherein the discrete anti-static elements are metal elements.14. A machine according to claim 11 , wherein the discrete anti-static elements are pointed elements.15. A machine according to claim 11 , wherein the discrete anti-static elements are substantially equidistant.16. A machine according to claim 11 , wherein the member is at least partially made of plastic material having a high density claim 11 , low porosity claim 11 , and low electrical conductivity claim 11 , and wherein the discrete anti-static elements are electrically connected together ...

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12-07-2018 дата публикации

MICROFLUIDIC ASSEMBLY AND METHODS OF FORMING SAME

Номер: US20180194131A1
Принадлежит:

One or more embodiments are directed to a microfluidic assembly that includes an interconnect substrate coupled to a microfluidic die. In one embodiment, the microfluidic die includes a ledge with a plurality of bond pads. The microfluidic assembly further includes an interconnect substrate having an end resting on the ledge proximate the bond pads. In another embodiment, the interconnect substrate abuts a side surface of the ledge or is located proximate the ledge. Conductive elements couple the microfluidic die to contacts of the interconnect substrate. Encapsulant is located over the conductive elements, the bond pads, the contacts. 1. A printhead , comprising:an outer surface; and a microfluidic die having a first surface and a plurality of nozzles on the first surface, the plurality of nozzles being configured to be expel a fluid, the microfluidic die including a ledge having a second surface that is offset from the first surface, the second surface including a plurality of bond pads, the microfluidic die including a side surface extending from the ledge;', 'an interconnect substrate having a first end coupled to the side surface of the microfluidic die, the interconnect substrate including a plurality of contacts laterally arranged with the plurality of bond pads;', 'conductive elements having first ends coupled to the bond pads of the microfluidic die and second ends coupled to the contacts of the interconnect substrate; and', 'encapsulant material over the plurality of bond pads, the plurality of contacts, and the conductive elements., 'a microfluidic assembly coupled to the outer surface, the microfluidic assembly including2. The printhead of wherein the plurality of contacts are laterally aligned with the plurality of bond pads claim 1 , respectively.3. The printhead of wherein a side surface of the first end of the interconnect substrate abuts the side surface of the microfluidic die.4. The printhead of wherein the interconnect substrate has first and ...

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30-07-2015 дата публикации

Process for Preparing Dynamically Vulcanized Alloys

Номер: US20150209993A1
Принадлежит:

This invention relates to the preparation of a dynamically vulcanized alloy comprising at least one elastomer and at least one thermoplastic resin, having a G′ at 1% strain and 100° C. as determined according to ASTM D7605 of about 4,500 to about 7,500 kPa. More specifically, the process produces dynamically vulcanized alloys with unique morphological features which have good impermeability and low temperature flexibility. In the process, the thermoplastic resin is added into the extruder in two stages with an intermediate addition of a compatibilizer. Also during the final addition of thermoplastic resin, the elastomeric curatives are added to the extruder. 1. A process for producing a dynamically vulcanized alloy , the alloy comprising at least one elastomer and at least one thermoplastic resin , the process comprising the following consecutive steps of:a) feeding the elastomer and a first portion of the thermoplastic resin into the initial feed throat of an extruder;b) mixing the elastomer and the first portion of thermoplastic resin;c) feeding a compatibilizer into the extruder;d) mixing the elastomer, the first portion of thermoplastic resin, and the compatibilizer to begin grafting of the elastomer with the thermoplastic resin without any significant curing of the elastomer;e) feeding a second portion of the thermoplastic resin into the extruder; andf) mixing the contents of the extruder under shear conditions to mix and cure the elastomer until the elastomer is dispersed as particles in a matrix of the thermoplastic resin and the elastomer particle achieve at least 80% cure forming a dynamically vulcanized alloy;wherein the alloy has a G′ at 1% strain and 100° C. as determined according to ASTM D7605 of about 4,500 to about 7,500 kPa.2. The process as claimed in claim 1 , wherein said elastomer is added directly into the feed throat without any prior mixing with other components of the dynamically vulcanized alloy.3. The process as claimed in claim 1 , ...

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13-08-2015 дата публикации

Thermoplastic elastomer composition and process to produce same

Номер: US20150225561A1

Disclosed herein is a thermoplastic elastomer composition having improved uv and processability, comprising a post-vulcanized dynamically vulcanized alloy (DVA) and a low molecular weight aromatic amine stabilizer, wherein the DVA comprises an isobutylene elastomeric component dispersed as a domain in a continuous phase comprising at least one thermoplastic resin. A method to produce the thermoplastic elastomer composition is also disclosed.

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03-08-2017 дата публикации

Dynamically Vulcanized Alloys

Номер: US20170218190A1
Автор: Ellul Maria D., May Rodney
Принадлежит:

This invention relates to the preparation of a dynamically vulcanized alloy comprising at least one elastomer, at least one thermoplastic resin, a nanofiller, and an ethylene copolymer resin. 1. A dynamically vulcanized alloy , the alloy comprising:{'sub': 4', '7, 'a. at least one elastomer comprising Cto Cisomonoolefin derived units;'}b. at least one thermoplastic resin having a melting temperature in the range of 170° C. to 260° C.;c. a nanofiller; andd. 5 to 30 phr of an ethylene copolymer resin,wherein the elastomer is present as a dispersed phase of small particles in a continuous phase of the thermoplastic resin.2. The alloy as claimed in claim 1 , wherein said nanofiller comprises a layered filler and an amine modifier.3. The alloy as claimed in claim 2 , wherein the amine modifier has the following structure:{'br': None, 'sup': 1', '2', '3', '4', '+, '(RRRR)N'}{'sup': 1', '2', '3', '4, 'sub': 1', '8', '2', '8', '3', '8', '9', '26', '9', '26', '9', '26', '1', '26', '2', '26', '3', '26, 'wherein Ris selected from Cto Calkyls, Cto Calkenes, and Cto Caryls, wherein Ris selected from Cto Calkyls, Cto Calkenes, and Cto Caryls, and wherein Rand Rare the same or different and are independently selected from hydrogen, Cto Calkyls, Cto Calkenes, and Cto Caryls.'}4. The alloy as claimed in claim 2 , wherein the amine modifier is selected from the group consisting of tetra alkyl ammonium claim 2 , trialkyl aryl ammonium claim 2 , and dialkyl di-aryl ammonium.5. The alloy as claimed in claim 1 , wherein the layered filler is at least one silicate and is selected from at least one of montmorillonite claim 1 , nontronite claim 1 , beidellite claim 1 , bentonite claim 1 , volkonskoite claim 1 , laponite claim 1 , hectorite claim 1 , saponite claim 1 , sauconite claim 1 , magadite claim 1 , kenyaite claim 1 , stevensite claim 1 , vermiculite claim 1 , halloysite claim 1 , aluminate oxides claim 1 , and hydrotalcite.6. The alloy as claimed in claim 1 , wherein the ethylene ...

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16-10-2014 дата публикации

Elastomeric Compositions and Their Use in Articles

Номер: US20140309371A1
Принадлежит:

A dynamically vulcanized alloy contains at least one isobutylene-containing elastomer, at least one thermoplastic resin, and an anhydride functionalized oligomer grafted to the thermoplastic resin. In the alloy, the elastomer is present as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin and the alloy is substantially absent of any sulfonamides. 2. The alloy of claim 1 , wherein the oligomer is selected from the group consisting of an alkyl claim 1 , an aryl claim 1 , and an alkenyl oligomer.3. The alloy of either or claim 1 , wherein the oligomer has a molecular weight in the range of 500 to 2500.4. The alloy of any one of to claim 1 , wherein the anhydride functionality is either a succinic anhydride or a maleic anhydride.5. The alloy of any one of to claim 1 , wherein the anhydride functionalized oligomer is a poly-n-alkyl succinic anhydride or a poly-iso-alkyl succcinic anhydride.6. The alloy of any one of to claim 1 , wherein the functionalized oligomer is selected from the group consisting of poly-isobutylene succinic anhydride claim 1 , polyisobutene succinic anhydride claim 1 , polybutene succinic anhydride claim 1 , polyisopentene succinic anhydride claim 1 , polypentene succinic anhydride claim 1 , polyoctenyl succinic anhydride claim 1 , polyisooctenyl succinic anhydride claim 1 , poly-hexenyl succinic anhydride claim 1 , and poly-dodecenyl succinic anhydride.7. The alloy of any one of to claim 1 , wherein the alloy comprises 2 to 30 phr of the anhydride functionalized oligomer claim 1 , based on the amount of the isobutylene-containing elastomer in the alloy.8. The alloy of any one of to claim 1 , wherein the at least one thermoplastic resin has a relative viscosity of not more than 3.9.9. The alloy of any one of to claim 1 , wherein the at least one thermoplastic resin is a mixture of at least two thermoplastic resins wherein the mixture has a relative viscosity of in the range of 3 ...

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17-08-2017 дата публикации

MICROFLUIDIC ASSEMBLY AND METHODS OF FORMING SAME

Номер: US20170232739A1
Принадлежит:

One or more embodiments are directed to a microfluidic assembly that includes an interconnect substrate coupled to a microfluidic die. In one embodiment, the microfluidic die includes a ledge with a plurality of bond pads. The microfluidic assembly further includes an interconnect substrate having an end resting on the ledge proximate the bond pads. In another embodiment, the interconnect substrate abuts a side surface of the ledge or is located proximate the ledge. Conductive elements couple the microfluidic die to contacts of the interconnect substrate. Encapsulant is located over the conductive elements, the bond pads, the contacts.

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30-07-2020 дата публикации

NON-METALLIC LIQUID LEVEL SENSOR ELECTRODE

Номер: US20200240825A1
Принадлежит: Abertax Research & Development Ltd.

An electrode for a liquid level sensor adapted for a determination of a liquid level of an electrically conductive liquid in a container is disclosed. The electrode comprises a first end configured for an electrically conductive contact with a sensor component of the liquid level sensor and a second end opposite the first end. The electrode is formed of one or more non-metallic materials of which at least one is an electrically conductive non-metal that is in electrically conductive contact with the first end of the electrode, wherein the at least one electrically conductive non-metal is configured for an electrically conductive contact with the electrically conductive liquid. 1. An electrode for a liquid level sensor adapted for a determination of a liquid level of an electrically conductive liquid in a container , the electrode comprising:a first end configured for an electrically conductive contact with a sensor component of the liquid level sensor;a second end opposite the first end; andwherein the electrode is formed of one or more non-metallic materials of which at least one is an electrically conductive non-metal that is in electrically conductive contact with the first end of the electrode, and wherein the at least one electrically conductive non-metal is configured for an electrically conductive contact with the electrically conductive liquid.2. The electrode of claim 1 , wherein the electrode comprises at least one electrically conductive non-metal with a surface extending from the first end of the electrode to the second end of the electrode claim 1 , and wherein an electrical insulator covers at least a part of said surface contiguously.3. The electrode of claim 2 , wherein the electrical insulator forms a hollow body with at least an opening at the second end of the electrode and with the electrically conductive non-metal being arranged on the internal surface of the hollow body or filling the void of the hollow body at least in part.4. The electrode of ...

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27-11-2014 дата публикации

MAGNETIC DEVICE UTILIZING NANOCOMPOSITE FILMS LAYERED WITH ADHESIVES

Номер: US20140347157A1
Принадлежит:

Exemplary embodiments provide a nanomagnetic structure and method of making the same, comprising a device substrate, a plurality of nanomagnetic composite layers disposed on the device substrate, wherein an adhesive layer is interposed between each of the plurality of nanomagnetic composite layers. Metal windings are integrated within the plurality of nanomagnetic composite layers to form an inductor core, wherein the nanomagnetic structure has a thickness ranging from about 5 to about 100 microns. 1. A nanomagnetic structure , comprising:a device substrate;a plurality of nanomagnetic composite film layers disposed on the device substrate, wherein an adhesive layer is interposed between each of the plurality of nanomagnetic composite film layers; andmetal windings integrated within the plurality of nanomagnetic composite film layers to form an inductor core.2. The structure of claim 1 , wherein each of the plurality of nanomagnetic composite film layers has a thickness ranging from about 200 to about 3000 nanometers.3. The structure of claim 1 , wherein the adhesive layer has a thickness ranging from about 0.2 to about 4 microns.4. The structure of claim 1 , further comprising 5-25 nanomagnetic composite film layers.5. The structure of claim 1 , wherein the nanomagnetic structure has a combined thickness ranging from about 5 to about 100 microns.6. The structure of claim 1 , wherein each of the nanomagnetic composite film layers comprises a magnetic metal.7. The structure of claim 6 , wherein each of the nanomagnetic composite film layers further comprises alloy nanodomains separated by an insulator claim 6 , wherein the insulator comprises metal oxides of silica claim 6 , hafnia claim 6 , zirconia claim 6 , or combinations thereof.8. (canceled)9. The structure of claim 1 , wherein the plurality of nanomagnetic composite film layers are patterned as a toroid or solenoid.10. The structure of claim 1 , wherein the plurality of nanomagnetic composite film layers are ...

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29-10-2015 дата публикации

Process For Preparing Dynamically Vulcanized Alloys

Номер: US20150307665A1
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to the preparation of a dynamically vulcanized alloy comprising at least one elastomer and at least one thermoplastic resin. More specifically, the process produces dynamically vulcanized alloys with unique morphological features which have good impermeability and low temperature flexibility. In the process, the thermoplastic resin is added into the extruder in two stages with an intermediate addition of a compatibilizer. Also during the final addition of thermoplastic resin, the elastomeric curatives are added to the extruder.

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15-11-2018 дата публикации

Reactive Blends of Nylon and Anhydride Oligomer

Номер: US20180327590A1
Автор: Ellul Maria D.
Принадлежит:

A composition having at least one thermoplastic resin and an anhydride functionalized oligomer grafted to the thermoplastic resin. 1. A gas barrier composition consisting essentially of:a) at least one thermoplastic resin; andb) an anhydride functionalized oligomer.2. The composition of claim 1 , wherein the oligomer is selected from the group consisting of an alkyl claim 1 , an aryl claim 1 , and an alkenyl oligomer.3. The composition of claim 1 , wherein the oligomer has a number average molecular weight in the range of 500 to 2500.4. The composition of claim 1 , wherein the anhydride functionality is either a succinic anhydride or a maleic anhydride.5. The composition of claim 1 , wherein the anhydride functionalized oligomer is a poly-n-alkyl succinic anhydride or a poly-iso-alkyl succcinic anhydride.6. The composition of claim 1 , wherein the functionalized oligomer is selected from the group consisting of poly-isobutylene succinic anhydride claim 1 , polyisobutene succinic anhydride claim 1 , polybutene succinic anhydride claim 1 , polyisopentene succinic anhydride claim 1 , polypentene succinic anhydride claim 1 , polyoctenyl succinic anhydride claim 1 , polyisooctenyl succinic anhydride claim 1 , poly-hexenyl succinic anhydride claim 1 , and poly-dodecenyl succinic anhydride.7. The composition of claim 1 , wherein the oligomer is present in the amount of about 5 to about 20 wt % based on the total weight of the composition.8. The composition of claim 1 , wherein the thermoplastic resin is selected from the group consisting of polyamides claim 1 , polyimides claim 1 , polycarbonates claim 1 , polyesters claim 1 , polysulfones claim 1 , polylactones claim 1 , polyacetals claim 1 , acrylonitrile-butadiene-styrene resins claim 1 , polyphenyleneoxide claim 1 , polyphenylene sulfide claim 1 , polystyrene claim 1 , styrene-acrylonitrile resins claim 1 , styrene maleic anhydride resins claim 1 , aromatic polyketones claim 1 , ethylene vinyl acetates claim 1 , ...

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15-03-2006 дата публикации

Improved thermoplastic vulcanizates

Номер: EP1634919A1
Принадлежит: Advanced Elastomer Systems LP

A composition comprising a dynamically-vulcanized rubber, and a copolymer of propylene and at least one of (i) an α, internal non-conjugated diene monomer and (ii) an olefin containing a labile hydrogen, where the copolymer includes from about 0.1 to about 10 mole percent by weight units deriving from α, internal non-conjugated diene monomer or from about 0.5 to about 10 mole percent units deriving from an olefin containing a labile hydrogen, and where the compositional distribution of the α, internal non-conjugated diene monomer or the olefin containing a labile hydrogen is narrow as determined by a crystallization temperature distribution parameter R that is less than 2.0.

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03-06-2010 дата публикации

Thermoplastic Polymer Compositions, Methods for Making the Same, and Articles Made Therefrom

Номер: US20100137521A1
Принадлежит: Individual

Provided are thermoplastic polymer compositions having a single melting point, articles made therefrom, and methods for elevating the melting point of low melting point polymers. Thermoplastic polymer compositions are composed of one or more high melting point polyolefins and a thermoplastic component that includes a low melting point polypropylene. High melting point polyolefins are composed of a stereoregular polypropylene having a tacticity similar to the low melting point polypropylene. The low melting point polypropylene includes, for example, propylene homopolymers and copolymers composed of propylene and one or more comonomers. Thermoplastic polymer compositions may also optionally contain any of the various additives commonly used in such polymer compositions, such as for example oils, etc. In one embodiment, thermoplastic polymer compositions are thermoplastic elastomer compositions that include an elastomeric component composed of an elastomer or rubber. The elastomeric component may be substantially or partially crosslinked to form a thermoplastic vulcanizate.

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24-02-2015 дата публикации

Thermoplastic polymer compositions, methods for making the same, and articles made therefrom

Номер: US8962762B2
Принадлежит: ExxonMobil Chemical Patents Inc

Provided are thermoplastic polymer compositions having a single melting point, articles made therefrom, and methods for elevating the melting point of low melting point polymers. Thermoplastic polymer compositions are composed of one or more high melting point polyolefins and a thermoplastic component that includes a low melting point polypropylene. High melting point polyolefins are composed of a stereoregular polypropylene having a tacticity similar to the low melting point polypropylene. The low melting point polypropylene includes, for example, propylene homopolymers and copolymers composed of propylene and one or more comonomers. Thermoplastic polymer compositions may also optionally contain any of the various additives commonly used in such polymer compositions, such as for example oils, etc. In one embodiment, thermoplastic polymer compositions are thermoplastic elastomer compositions that include an elastomeric component composed of an elastomer or rubber. The elastomeric component may be substantially or partially crosslinked to form a thermoplastic vulcanizate.

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06-10-1999 дата публикации

Thermoplastic elastomeric compositions

Номер: EP0946641A1

A cross-linked or at least partially cross-linked thermoplastic elastomeric composition formed of from 10 to 90 percent of a first polymeric material comprised of ethylene, α-olefin and optionally a non-conjugated diene, and 90 to 10 percent of a second olefin polymeric material, wherein at least one of the first or second polymeric materials is at least partially the product of a metallocene polymerization reaction.

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04-05-2010 дата публикации

Process of making polymer blends

Номер: US7709577B2
Принадлежит: ExxonMobil Chemical Patents Inc

In a process for producing a polymer blend, at least one first monomer is polymerized in a first slurry phase reaction zone in the presence of a supported first catalyst comprising a Ziegler-Natta component to produce a thermoplastic first polymer having a crystallinity of at least 30%. At least part of said first polymer is then contacted with at least one second monomer different from said first monomer and at least one polyene in a second solution phase reaction zone in the presence of a second catalyst under conditions to produce and at least partially cross-link said second polymer such that said second polymer comprises at least a fraction which is insoluble in xylene and has a crystallinity of less than 20%.

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12-01-2016 дата публикации

Thermoplastic vulcanizates

Номер: US9234093B2
Принадлежит: ExxonMobil Chemical Patents Inc

A process for preparing a thermoplastic vulcanizate, the process comprising: charging a reactor with an olefinic copolymer rubber, where the olefinic copolymer rubber is characterized by a multimodal molecular weight, an average branching index of greater than 0.8, includes less than 10 parts by weight oil per 100 parts by weight rubber, includes less than 1 parts by weight non-rubber particulate, per 100 parts by weight rubber, and is in the form of granules having a particle size less than 8 mm; charging the reactor, contemporaneously or sequentially with respect to the rubber, with a thermoplastic resin, an oil, and a cure system; melt mixing the rubber, the thermoplastic resin, the oil, and the cure system; and dynamically vulcanizing the rubber.

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31-07-2001 дата публикации

Thermoplastic elastomeric compositions

Номер: US6268438B1
Принадлежит: ExxonMobil Chemical Patents Inc

A cross-linked or at least partially cross-linked thermoplastic elastomeric composition formed of from 10 to 90 percent of a first polymeric material comprised of ethylene, alpha-olefin and optionally a non-conjugated diene, and 90 to 10 percent of a second olefin polymeric material, wherein at least one of the first or second polymeric materials is at least partially the product of a metallocene polymerization reaction.

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11-09-2001 дата публикации

Modification of thermoplastic vulcanizates using random propylene copolymers

Номер: US6288171B2

Random propylene thermoplastic copolymers can be used to increase the elongation to break and toughness of thermoplastic vulcanizates. Semi-crystalline polypropylene is a preferred thermoplastic phase. The rubber can be olefinic rubbers. Random thermoplastic polypropylene copolymers are different from conventional Ziegler-Natta propylene copolymers as the compositional heterogeneity of the copolymer is greater with Ziegler-Natta copolymers. This difference results in substantial differences in properties (elongation to break and toughness) between thermoplastic vulcanizates modified with random thermoplastic propylene copolymers and those modified with conventional Ziegler-Natta propylene copolymers. An increase in elongation to break results in greater extensibility in the articles made from a thermoplastic vulcanizate.

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03-07-2008 дата публикации

Process of making polymer blends

Номер: WO2008079509A1
Принадлежит: ExxonMobil Chemical Patents Inc.

In a process for producing a polymer blend, at least one first monomer is polymerized in a first slurry phase reaction zone in the presence of a supported first catalyst comprising a Ziegler-Natta component to produce a thermoplastic first polymer having a crystallinity of at least 30%. At least part of said first polymer is then contacted with at least one second monomer different from said first monomer and at least one polyene in a second solution phase reaction zone in the presence of a second catalyst under conditions to produce and at least partially cross-link said second polymer such that said second polymer comprises at least a fraction which is insoluble in xylene and has a crystallinity of less than 20%.

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12-06-2001 дата публикации

Thermoplastic olefin compositions

Номер: US6245856B1
Принадлежит: Exxon Chemical Patents Inc

The invention relates to novel Thermoplastic Olefin compositions comprising polypropylene, and ethylene-alpha olefin elastomer and a compatabilizer comprising an ethylene-propylene copolymer having a propylene content of greater than 80 weight percent. The ethylene-propylene copolymer compatabilizer imparts a greater degree of compatibility between the polypropylene and elastomer phases yielding improved physical properties.

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02-09-2004 дата публикации

Thermoplastic elastomers and process for making same

Номер: US20040171758A1
Автор: Jianya Cheng, Maria Ellul
Принадлежит: Individual

A process for producing a thermoplastic elastomer composition, the process comprising synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer, blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer, and dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.

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11-01-2011 дата публикации

Thermoplastic elastomers and process for making same

Номер: US7868082B2
Принадлежит: ExxonMobil Chemical Patents Inc

A process for producing a thermoplastic elastomer composition, the process comprising synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer, blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer, and dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.

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09-03-2006 дата публикации

Thermoplastic vulcanizates

Номер: US20060052540A1
Принадлежит: Advanced Elastomer Systems LP

A composition comprising a dynamically-vulcanized rubber, and a copolymer of propylene and at least one of (i) an α, internal non-conjugated diene monomer and (ii) an olefin containing a labile hydrogen, where the copolymer includes from about 0.1 to about 10 mole percent by weight units deriving from α, internal non-conjugated diene monomer or from about 0.5 to about 10 mole percent units deriving from an olefin containing a labile hydrogen, and where the compositional distribution of the α, internal non-conjugated diene monomer or the olefin containing a labile hydrogen is narrow as determined by a crystallization temperature distribution parameter R that is less than 2.0.

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27-02-2002 дата публикации

Thermoplastic olefin compositions

Номер: EP0946640B1

The invention relates to novel Thermoplastic Olefin compositions comprising polypropylene, and ethylene-alpha olefin elastomer and a compatibilizer comprising an ethylene-propylene copolymer having a propylene content of greater than 80 weight percent. The ethylene-propylene copolymer compatibilizer imparts a greater degree of compatibility between the polypropylene and elastomer phases yielding improved physical properties.

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08-11-1994 дата публикации

Method of making integrated circuits

Номер: US5362669A
Принадлежит: Northern Telecom Ltd

A method is provided for forming a fully planarized trench isolated region in a semiconductor substrate for an integrated circuit, for example, a trench isolated field oxide region, or a trench isolated semiconductor region in which thin film semiconductor devices are formed. Planarization is accomplished by a chemical mechanical polishing process in which coplanar layers of a chemical mechanical polish resistant material are provided in a centre region of wide trenches as well as on the semiconductor substrate surface adjacent the trenches. The chemical mechanical polish resistant layer in the centre region of a wide trench forms an etch stop to prevent dishing of layers filling the trench during overall wafer planarization by chemical mechanical polishing. The method is compatible with CMOS, Bipolar and Bipolar CMOS processes for submicron VLSI and ULSI integrated circuit structures.

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02-10-2008 дата публикации

Thermoplastic elastomers

Номер: DE60228507D1
Принадлежит: Advanced Elastomer Systems LP

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02-02-2010 дата публикации

Method for preparing thermoplastic vulcanizates with improved extrusion surfaces

Номер: US7655727B2
Принадлежит: ExxonMobil Chemical Patents Inc

A process for the preparation of dynamically vulcanized thermoplastic elastomers comprising melt processing under shearing conditions in melt reaction extruder, A) at least one thermoplastic resin, B) at least one vulcanizable gas-phase elastomer having a Mooney viscosity (ML.sub.1+4(125° C.)) of from about 65 to about 450, C) a curing agent or agents, and D) process oil, wherein said process oil D) is added to the extruder in at least three oil injection positions located a) at least one location before or within the first 15% of the total length of the extruder; b) at least one other location prior to, at or within 10% total extruder length after the onset of the vulcanization of said gas-phase elastomer; and c) at least one location subsequent to the location of the point at which the vulcanization of said gas-phase elastomer is substantially completed.

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07-03-2017 дата публикации

Dynamically vulcanized thermoplastic elastomer film

Номер: US9586355B2
Принадлежит: ExxonMobil Chemical Patents Inc

A dynamically vulcanized alloy containing an elastomer and a thermoplastic resin is prepared by a process wherein supercritical fluid is injected into the thermoplastic elastomeric material as the material is mixed in an extruder. The material is mixed under conditions such that the thermoplastic elastomeric material is dynamically vulcanized wherein the elastomer forms a discontinuous dispersed of small particles in a continuous phase of the thermoplastic resin. The DVA material may then be directly formed into film or sheets by the use of at least one set of rolls located adjacent to the extruder outlet.

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25-06-1998 дата публикации

Thermoplastic elastomeric compositions

Номер: CA2274531A1
Принадлежит: Individual

A cross-linked or at least partially cross-linked thermoplastic elastomeric composition formed of from 10 to 90 percent of a first polymeric material comprised of ethylene, .alpha.-olefin and optionally a non-conjugated diene, and 90 to 10 percent of a second olefin polymeric material, wherein at least one of the first or second polymeric materials is at least partially the product of a metallocene polymerization reaction.

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08-10-2009 дата публикации

Thermoplastic vulcanizates

Номер: WO2009123609A1
Принадлежит: Advanced Elastomer Systems, L.P.

A process for preparing a thermoplastic vulcanizate, the process comprising: charging a reactor with an olefmic copolymer rubber, where the olefmic copolymer rubber is characterized by a multimodal molecular weight, an average branching index of greater than 0.8, includes less than 10 parts by weight oil per 100 parts by weight rubber, includes less than 1 parts by weight non-rubber particulate, per 100 parts by weight rubber, and is in the form of granules having a particle size less than 8 mm; charging the reactor, contemporaneously or sequentially with respect to the rubber, with a thermoplastic resin, an oil, and a cure system; melt mixing the rubber, the thermoplastic resin, the oil, and the cure system; and dynamically vulcanizing the rubber.

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02-10-2001 дата публикации

Thermoplastic elastomer compositions having improved processing properties

Номер: US6297301B1

Thermoplastic elastomers having improved processability are prepared by incorporating one or more organic sulfate or sulfonate salts into blends of thermoplastic polymers and olefinic rubber and melt processing the mixture. The rubber component of the mixture is preferably at least partially cured.

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01-03-1994 дата публикации

Thermoplastic elastomers having improved low temperature properties

Номер: US5290886A
Автор: Maria D. Ellul
Принадлежит: Advanced Elastomer Systems LP

Thermoplastic elastomers having improved low temperature properties are provided by incorporating suitable low molecular weight ester plasticizer into blends of crystalline polyolefin homopolymer or copolymer and olefinic rubber. The rubber component of the composition is at least partially cured.

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06-11-2008 дата публикации

Method for preparing thermoplastic vulcanizates

Номер: WO2008134173A1
Принадлежит: Advanced Elastomer Systems, L.P.

A method for preparing a thermoplastic vulcanizate, the method comprising introducing an elastomer and a thermoplastic resin to a reaction extruder, where the elastomer is not prepared by gas-phase polymerization methods, and where less than 75 parts by weight oil, per 100 parts by weight elastomer, is added to the extruder with the elastomer, introducing a curative to the extruder after said step of introducing an elastomer, introducing an oil to the extruder after said step of introducing an elastomer but before or together with said step of introducing a curative, and introducing an oil to the extruder after said step of introducing a curative.

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07-06-2007 дата публикации

Process of making polymer blends

Номер: US20070129497A1
Автор: Maria Ellul, Peijun Jiang
Принадлежит: ExxonMobil Chemical Patents Inc

In a process for producing a polymer blend, at least one first monomer is polymerized in a first slurry phase reaction zone in the presence of a supported first catalyst comprising a Ziegler-Natta component to produce a thermoplastic first polymer having a crystallinity of at least 30%. At least part of said first polymer is then contacted with at least one second monomer different from said first monomer and at least one polyene in a second solution phase reaction zone in the presence of a second catalyst under conditions to produce and at least partially cross-link said second polymer such that said second polymer comprises at least a fraction which is insoluble in xylene and has a crystallinity of less than 20%.

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12-12-2012 дата публикации

Process of making polymer blends

Номер: EP2102251B1
Принадлежит: ExxonMobil Chemical Patents Inc

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21-06-2007 дата публикации

Peroxide-cured thermoplastic vulcanizates and medical devices made therewith

Номер: US20070142554A1
Автор: John Gorsuch, Maria Ellul
Принадлежит: Individual

A method of preparing a thermoplastic vulcanizate, the method comprising dynamically vulcanizing a rubber within a blend with a thermoplastic resin, where the dynamic vulcanization is effected with a cure system that includes a free-radical cure agent and triallyl isocyanurate.

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12-10-2010 дата публикации

Peroxide-cured thermoplastic vulcanizates and medical devices made therewith

Номер: US7812093B2
Принадлежит: ExxonMobil Chemical Patents Inc

A method of preparing a thermoplastic vulcanizate, the method comprising dynamically vulcanizing a rubber within a blend with a thermoplastic resin, where the dynamic vulcanization is effected with a cure system that includes a free-radical cure agent and triallyl isocyanurate.

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07-11-2012 дата публикации

Curing rubber by hydrosilation

Номер: EP2079797B1
Принадлежит: ExxonMobil Chemical Patents Inc

Подробнее
22-09-2004 дата публикации

Thermoplastic elastomers and process for making the same

Номер: EP1419183A4
Принадлежит: Advanced Elastomer Systems LP

A process for producing a thermoplastic elastomer composition, the process comprising synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer, blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer, and dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.

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16-08-2001 дата публикации

Process for forming thermoplastic elastomer compositions having improved processing properties

Номер: EP1023379B1

Thermoplastic elastomers having improved processability are prepared by incorporating one or more organic sulfate or sulfonate salts into blends of thermoplastic polymers and olefinic rubber and melt processing the mixture. The rubber component of the mixture is preferably at least partially cured.

Подробнее
04-12-2001 дата публикации

Thermoplastic elastomers having improved low temperature properties

Номер: US6326426B1
Автор: Maria D. Ellul
Принадлежит: Advanced Elastomer Systems LP

Thermoplastic elastomers having improved low temperature properties are provided by incorporating suitable low molecular weight ester plasticizer into blends of crystalline polyolefin homopolymer or copolymer and olefinic rubber. The rubber component of the composition is at least partially cured.

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05-12-2001 дата публикации

Thermoplastische Elastomerzusammensetzungen mit verbesserten Verarbeitungseigenschaften

Номер: EP1118637A3

Thermoplastic elastomers having improved processability are prepared by incorporating one or more organic sulfate or sulfonate salts into blends of thermoplastic polymers and olefinic rubber and melt processing the mixture. The rubber component of the mixture is preferably at least partially cured.

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17-09-2002 дата публикации

Thermoplastic elastomers having improved processing and physical property balance

Номер: US6451915B1

A thermoplastic elastomer formed by a process comprising the steps of dynamically vulcanizing a rubber within a mixture that includes the rubber, from about 10 to about 80 percent by weight of a thermoplastic resin based upon the total weight of the rubber and the thermoplastic combined, and from about 1 to about 25 percent by weight of a polymeric processing additive based upon the total weight of the rubber and the thermoplastic combined, where the polymeric processing additive is a linear polyolefin resin that has an melt flow rate that is greater than about 1,000 dg/min, a diene-modified polyolefin polymer that has an melt flow rate that is greater than about 1,000 dg/min, from about 0.005 to about 2.00 mole percent polymeric units deriving from dienes, and a viscosity average branching index that is from about 0.4 to about 0.95, or a mixture of the linear polyolefin resin and the diene-modified polyolefin polymer, where the step of dynamically vulcanizing the rubber results in vulcanized rubber having a crosslink density of about 40 to about 180 mole per milliliter of rubber.

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14-03-1995 дата публикации

Thermoplastic elastomer having improved low temperature properties

Номер: US5397832A
Автор: Maria D. Ellul
Принадлежит: Advanced Elastomer Systems LP

Thermoplastic elastomers having improved low temperature properties are provided by incorporating suitable low molecular weight ester plasticizer into blends of crystalline polyolefin homopolymer or copolymer and olefinic rubber. The rubber component of the composition is at least partially cured.

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18-12-2008 дата публикации

Thermoplastic polymer compositions, methods for making the same, and articles made therefrom

Номер: WO2008154068A1
Принадлежит: Advanced Elastomer Systems, L.P.

Provided are thermoplastic polymer compositions having a single melting point, articles made therefrom, and methods for elevating the melting point of low melting point polymers. Thermoplastic polymer compositions are composed of one or more high melting point polyolefins and a thermoplastic component that includes a low melting point polypropylene. High melting point polyolefins are composed of a stereoregular polypropylene having a tacticity similar to the low melting point polypropylene. The low melting point polypropylene includes, for example, propylene homopolymers and copolymers composed of propylene and one or more comonomers. Thermoplastic polymer compositions may also optionally contain any of the various additives commonly used in such polymer compositions, such as for example oils, etc. In one embodiment, thermoplastic polymer compositions are thermoplastic elastomer compositions that include an elastomeric component composed of an elastomer or rubber. The elastomeric component may be substantially or partially crosslinked to form a thermoplastic vulcanizate.

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22-04-1999 дата публикации

Thermoplastic elastomer compositions having improved processing properties

Номер: WO1999019394A1

Thermoplastic elastomers having improved processability are prepared by incorporating one or more organic sulfate or sulfonate salts into blends of thermoplastic polymers and olefinic rubber and melt processing the mixture. The rubber component of the mixture is preferably at least partially cured.

Подробнее
20-08-2008 дата публикации

Thermoplastic Elastomers

Номер: EP1591458B1
Принадлежит: Advanced Elastomer Systems LP

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13-04-2010 дата публикации

Thermoplastic elastomers and process for making the same

Номер: US7696276B2
Принадлежит: ExxonMobil Chemical Patents Inc

A process for producing a thermoplastic elastomer composition, the process comprising synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer, blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer, and dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.

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09-03-2006 дата публикации

Thermoplastic elastomers and process for making the same

Номер: US20060052538A1
Автор: Jianya Cheng, Maria Ellul
Принадлежит: Advanced Elastomer Systems LP

A process for producing a thermoplastic elastomer composition, the process comprising synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer, blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer, and dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.

Подробнее
13-08-2002 дата публикации

Thermoplastic elastomers having improved set foams made therefrom

Номер: US6433090B1
Принадлежит: Advanced Elastomer Systems LP

A thermoplastic vulcanizate prepared by a process comprising the steps of dynamically vulcanizing a vulcanizable rubber within a mixture that includes from about 15 to about 90 percent by weight of the rubber and from about 10 to about 85 percent by weight of a long-chain branched thermoplastic resin, where the long-chain branched thermoplastic resin is (i) an α-olefin polymer, (ii) a copolymer of an α-olefin and an α-ω-olefin diene, or (iii) a mixture thereof, where the long-chain branched thermoplastic resin is characterized by a weight average molecular weight from about 100,000 to about 600,000, a number average molecular weight from about 40,000 to about 200,000, a z-average molecular weight from about 400,000 to about 2,000,000, a <g′> vis from about 0.2 to about 0.95, and a melt flow rate from about 0.3 to about 30 dg/min.

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09-08-2006 дата публикации

Thermoplastic vulcanizates and their use

Номер: EP1688459A1
Автор: Maria D. Ellul
Принадлежит: Advanced Elastomer Systems LP

A thermoplastic vulcanizate comprising a dynamically cured rubber, and from about 20 to about 400 parts by weight of a thermoplastic resin per 100 parts by weight rubber, where said thermoplastic resin includes at least 0.1 percent by weight and less than 5.0 percent by weight, based upon the entire weight of said thermoplastic resin, of a long-chain branched polyolefin, with the remainder of said thermoplastic resin including a non-long-chain branched thermoplastic resin, where said long-chain branched polyolefin includes one or more polymers or copolymers having a viscosity average branching index <gN> vis of less than 0.9 and deriving from monomer selected from the group consisting of ethylene and mono-α-olefins, and where said non-long-chain thermoplastic resin includes one or more polymers or copolymers having a viscosity average branching index <gN> vis of 0.9 or more.

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23-12-2010 дата публикации

Thermoplastic Vulcanizates and Processes for Making the Same

Номер: US20100324161A1
Принадлежит: Individual

A process for producing thermoplastic vulcanizates, the process comprising (i) dynamically vulcanizing a rubber with a curative in a first stage, where the rubber is within a blend that includes the rubber, a thermoplastic resin, and the curative, where said step of dynamically vulcanizing occurs at a temperature at or above the melting point of the thermoplastic resin, where said step of dynamically vulcanizing employs a peroxide curative, and where said rubber includes polymeric units deriving from 5-vinyl-2-norbornene, (ii) continuing said step of dynamically vulcanizing to cause phase inversion of the blend to thereby convert the thermoplastic resin into a continuous phase, (iii) maintaining the blend at or above the melting point of the thermoplastic resin after the phase inversion, and (iv) introducing molten thermoplastic resin into the blend in a second stage, where said step of introducing molten thermoplastic resin occurs after phase inversion but before the blend is cooled to a temperature below the melting point of the thermoplastic resin.

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03-02-2011 дата публикации

Method for Preparing Thermoplastic Vulcanizates

Номер: US20110028637A1
Принадлежит: ExxonMobil Chemical Patents Inc

A method for preparing a thermoplastic vulcanizate, the method comprising introducing an elastomer and a thermoplastic resin to a reaction extruder, where the elastomer is not prepared by gas-phase polymerization methods, and where less than 75 parts by weight oil, per 100 parts by weight elastomer, is added to the extruder with the elastomer, introducing a curative to the extruder after said step of introducing an elastomer, introducing an oil to the extruder after said step of introducing an elastomer but before or together with said step of introducing a curative, and introducing an oil to the extruder after said step of introducing a curative.

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12-05-2011 дата публикации

Thermoplastic Vulcanizates

Номер: US20110112238A1
Принадлежит: Individual

A process for preparing a thermoplastic vulcanizate, the process comprising: charging a reactor with an olefinic copolymer rubber, where the olefinic copolymer rubber is characterized by a multimodal molecular weight, an average branching index of greater than 0.8, includes less than 10 parts by weight oil per 100 parts by weight rubber, includes less than 1 parts by weight non-rubber particulate, per 100 parts by weight rubber, and is in the form of granules having a particle size less than 8 mm; charging the reactor, contemporaneously or sequentially with respect to the rubber, with a thermoplastic resin, an oil, and a cure system; melt mixing the rubber, the thermoplastic resin, the oil, and the cure system; and dynamically vulcanizing the rubber.

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07-01-2003 дата публикации

Thermoplastic elastomers having improved set and foams made therefrom

Номер: US6503985B1
Принадлежит: Advanced Elastomer Systems LP

A thermoplastic vulcanizate prepared by a process comprising the steps of dynamically vulcanizing a vulcanizable rubber within a mixture that includes from about 15 to about 90 percent by weight of the rubber and from about 10 to about 85 percent by weight of a long-chain branched thermoplastic resin, where the long-chain branched thermoplastic resin is (i) an alpha-olefin polymer, (ii) a copolymer of an alpha-olefin and an alpha-omega-olefin diene, or (iii) a mixture thereof, where the long-chain branched thermoplastic resin is characterized by a weight average molecular weight from about 100,000 to about 600,000, a number average molecular weight from about 40,000 to about 200,000, a z-average molecular weight from about 400,000 to about 2,000,000, a <g'>vis from about 0.2 to about 0.95, and a melt flow rate from about 0.3 to about 30 dg/min.

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29-03-2016 дата публикации

Thermoplastic vulcanizates and processes for making the same

Номер: US9296885B2
Принадлежит: ExxonMobil Chemical Patents Inc

A process for producing thermoplastic vulcanizates, the process comprising (i) dynamically vulcanizing a rubber with a curative in a first stage, where the rubber is within a blend that includes the rubber, a thermoplastic resin, and the curative, where said step of dynamically vulcanizing occurs at a temperature at or above the melting point of the thermoplastic resin, where said step of dynamically vulcanizing employs a peroxide curative, and where said rubber includes polymeric units deriving from 5-vinyl-2-norbornene, (ii) continuing said step of dynamically vulcanizing to cause phase inversion of the blend to thereby convert the thermoplastic resin into a continuous phase, (iii) maintaining the blend at or above the melting point of the thermoplastic resin after the phase inversion, and (iv) introducing molten thermoplastic resin into the blend in a second stage, where said step of introducing molten thermoplastic resin occurs after phase inversion but before the blend is cooled to a temperature below the melting point of the thermoplastic resin.

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29-10-2014 дата публикации

Elastomeric compositions and their use in articles

Номер: EP2794752A1
Принадлежит: ExxonMobil Chemical Patents Inc

A dynamically vulcanized alloy contains at least one isobutylene-containing elastomer, at least one thermoplastic resin, and an anhydride functionalized oligomer grafted to the thermoplastic resin. In the alloy, the elastomer is present as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin and the alloy is substantially absent of any sulfonamides.

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22-04-1999 дата публикации

Thermoplastic elastomer compositions having improved processing properties

Номер: CA2303937A1

Thermoplastic elastomers having improved processability are prepared by incorporating one or more organic sulfate or sulfonate salts into blends of thermoplastic polymers and olefinic rubber and melt processing the mixture. The rubber component of the mixture is preferably at least partially cured.

Подробнее
12-09-2002 дата публикации

Thermoplastic elastomers having improved processing and physical property balance

Номер: US20020128390A1
Принадлежит: Individual

A thermoplastic elastomer formed by a process comprising the steps of dynamically vulcanizing a rubber within a mixture that includes the rubber, from about 10 to about 80 percent by weight of a thermoplastic resin based upon the total weight of the rubber and the thermoplastic combined, and from about 1 to about 25 percent by weight of a polymeric processing additive based upon the total weight of the rubber and the thermoplastic combined, where the polymeric processing additive is a linear polyolefin resin that has an melt flow rate that is greater than about 1,000 dg/min, a diene-modified polyolefin polymer that has an melt flow rate that is greater than about 1,000 dg/min, from about 0.005 to about 2.00 mole percent polymeric units deriving from dienes, and a viscosity average branching index that is from about 0.4 to about 0.95, or a mixture of the linear polyolefin resin and the diene-modified polyolefin polymer, where the step of dynamically vulcanizing the rubber results in vulcanized rubber having a crosslink density of about 40 to about 180 mole per milliliter of rubber.

Подробнее
02-06-2010 дата публикации

Thermoplastic Elastomers

Номер: EP1591458B8
Принадлежит: Advanced Elastomer Systems LP

Подробнее
02-02-2011 дата публикации

Thermoplastic elastomers and process for making the same

Номер: EP1419183B2
Принадлежит: Advanced Elastomer Systems LP

A process for producing a thermoplastic elastomer composition, the process comprising synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer, blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer, and dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.

Подробнее
25-08-2010 дата публикации

Peroxide-cured thermoplastic vulcanizates and process for making the same

Номер: EP1940945B1
Принадлежит: ExxonMobil Chemical Patents Inc

A method of preparing a thermoplastic vulcanizate, the method comprising continuously dynamically vulcanizing a rubber within a blend with a thermoplastic resin, where the dynamic vulcanization is effected with a cure system that includes a free-radical cure agent, and a coagent- wetted carrier where the coagent-wetted carrier includes a multi- functional acrylate coagent, a multi-functional methacrylate coagent, or both a multi-functional acrylate and multi-functional methacrylate coagent.

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14-06-2007 дата публикации

Method for preparing thermoplastic vulcanizates with improved extrusion surfaces

Номер: US20070135571A1
Автор: Jianya Cheng, Maria Ellul

The invention described is a process for the preparation of dynamically vulcanized thermoplastic elastomers comprising melt processing under shearing conditions in melt reaction extruder, A) at least one thermoplastic resin, B) at least one vulcanizable gas-phase elastomer having a Mooney viscosity (ML 1+4 (125° C.)) of from about 65 to about 450, C) a curing agent or agents, and D) process oil, wherein said process oil D) is added to the extruder in at least three oil injection positions located a) at least one location before or within the first 15% of the total length of the extruder; b) at least one other location prior to, at or within 10% total extruder length after the onset of the vulcanization of said gas-phase elastomer; and c) at least one location subsequent to the location of the point at which the vulcanization of said gas-phase elastomer is substantially completed; wherein the direct oil injection locations into the extruder are positioned at or immediately before one or more distributive mixing elements, which distributive mixing elements are immediately followed by one or more dispersive mixing elements. Thermoplastic vulcanizates capable of being extrusion molded with a smooth surface and low surface spot count, in addition to excellent elastomeric properties, are obtained through the use of the process described.

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25-01-2007 дата публикации

Peroxide-cured thermoplastic vulcanizates

Номер: US20070021564A1
Автор: Maria Ellul, Paul McDaniel
Принадлежит: Advanced Elastomer Systems LP

A thermoplastic vulcanizate comprising a dynamically-cured rubber, and a thermoplastic resin, where the rubber has been cured with a peroxide in the presence of a coagent selected from the group consisting of a high-vinyl polydiene, high-vinyl polydiene copolymer, α-β-ethylenically unsaturated metal carboxylate, or mixture thereof.

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18-01-2011 дата публикации

Peroxide-cured thermoplastic vulcanizates and process for making the same

Номер: US7872075B2
Принадлежит: ExxonMobil Chemical Patents Inc

A method of preparing a thermoplastic vulcanizate, the method comprising continuously dynamically vulcanizing a rubber within a blend with a thermoplastic resin, where the dynamic vulcanization is effected with a cure system that includes a free-radical cure agent, and a coagent-wetted carrier where the coagent-wetted carrier includes a multi-functional acrylate coagent, a multi-functional methacrylate coagent, or both a multi-functional acrylate and multi-functional methacrylate coagent.

Подробнее
31-05-2011 дата публикации

Curing rubber by hydrosilation

Номер: US7951871B2
Принадлежит: ExxonMobil Chemical Patents Inc

A method for preparing a thermoplastic vulcanizate, the method comprising dynamically vulcanizing a rubber within a blend that includes the rubber and a thermoplastic polymer, where said dynamically vulcanizing is effected with a cure system that includes a hydrosilating agent and a catalyst, where the hydrosilating agent includes a compound including at least 3 silicon hydride groups defined by the formula where each R is independently a monovalent organic group or hydrogen, and where the silicon atoms of the respective silicon hydride groups are spatially separated by at least 6 atoms.

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21-08-2012 дата публикации

Thermoset compositions with dispersed thermoplastic resin therein and process for making them

Номер: US8247494B2
Принадлежит: ExxonMobil Chemical Patents Inc

A rubber composition comprising: a cured rubber; and thermoplastic resin, where the thermoplastic resin is in the form of discrete domains dispersed within a continuous phase of the cured rubber, and where the cured rubber includes silicon-containing crosslinks.

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25-06-1998 дата публикации

Thermoplastic elastomeric compositions

Номер: WO1998027155A1

A cross-linked or at least partially cross-linked thermoplastic elastomeric composition formed of from 10 to 90 percent of a first polymeric material comprised of ethylene, α-olefin and optionally a non-conjugated diene, and 90 to 10 percent of a second olefin polymeric material, wherein at least one of the first or second polymeric materials is at least partially the product of a metallocene polymerization reaction.

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06-10-1999 дата публикации

Themoplastic olefin compositions

Номер: EP0946640A1

The invention relates to novel Thermoplastic Olefin compositions comprising polypropylene, and ethylene-alpha olefin elastomer and a compatibilizer comprising an ethylene-propylene copolymer having a propylene content of greater than 80 weight percent. The ethylene-propylene copolymer compatibilizer imparts a greater degree of compatibility between the polypropylene and elastomer phases yielding improved physical properties.

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01-07-2005 дата публикации

THERMOPLASTIC ELASTOMEROS THAT HAVE IMPROVED ELABORATION AND BALANCED PHYSICAL PROPERTIES.

Номер: ES2234761T3

Una composición que comprende: un caucho vulcanizado; una resina termoplástica, y un aditivo polimérico para elaboración que tiene un índice de flujo de fusión que es mayor de 500 dg/min. A composition comprising: a vulcanized rubber; a thermoplastic resin, and a polymeric additive for processing that has a melt flow index that is greater than 500 dg / min.

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05-01-2000 дата публикации

Modification of thermoplastic vulcanizates using random propylene copolymers

Номер: EP0969043A1

Random propylene thermoplastic copolymers can be used to increase the elongation to break and toughness of thermoplastic vulcanizates. Semi-crystalline polypropylene is a preferred thermoplastic phase. The rubber can be olefinic rubbers. Random thermoplastic polypropylene copolymers are different from conventional Ziegler-Natta propylene copolymers as the compositional heterogeneity of the copolymer is greater with Ziegler-Natta copolymers. This difference results in substantial differences in properties (elongation to break and toughness) between thermoplastic vulcanizates modified with random thermoplastic propylene copolymers and those modified with conventional Ziegler-Natta propylene copolymers. An increase in elongation to break results in greater extensibility in the articles made from a thermoplastic vulcanizate.

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25-06-1998 дата публикации

Themoplastic olefin compositions

Номер: WO1998027154A1

The invention relates to novel Thermoplastic Olefin compositions comprising polypropylene, and ethylene-alpha olefin elastomer and a compatibilizer comprising an ethylene-propylene copolymer having a propylene content of greater than 80 weight percent. The ethylene-propylene copolymer compatibilizer imparts a greater degree of compatibility between the polypropylene and elastomer phases yielding improved physical properties.

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04-06-2002 дата публикации

Modification of thermolastic vulcanizates with a thermoplastic random copolymer of ethylene

Номер: US6399710B1
Принадлежит: Advanced Elastomer Systems LP

Random thermoplastic ethylene copolymers can be used to increase the elongation to break and toughness of thermoplastic vulcanizates. Polypropylene is a preferred thermoplastic phase. The rubber can be olefinic rubbers. Random thermoplastic ethylene copolymers are different from Ziegler-Natta ethylene copolymers as the compositional heterogeneity of the copolymer is greater with Ziegler-Natta copolymers. This difference results in substantial differences in properties (elongation to break and toughness) between thermoplastic vulcanizates modified with random thermoplastic ethylene and those modified with Ziegler-Natta ethylene copolymers. An increase in elongation to break results in greater extensibility in the articles made from a thermoplastic vulcanizate.

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10-11-2011 дата публикации

Peroxide Cured TPV

Номер: US20110275764A1
Принадлежит: Individual

Thermoplastic elastomer compositions and methods for making same. The elastomer composition can include at least one partially cured rubber component that is an ethylene-alpha-olefin-vinyl norbornene elastomeric polymer, and at least one thermoplastic component. The rubber component is at least partially cured using a peroxide curative in an amount effective to yield a cure level of the rubber component of at least 85%. The rubber component has a molecular weight distribution (MWD) less than 6, and a branching index greater than 0.60.

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18-10-2011 дата публикации

Thermoplastic vulcanizates including nanoclays and processes for making the same

Номер: US8039526B2
Принадлежит: ExxonMobil Chemical Patents Inc

A method for preparing a nanoclay-filled thermoplastic vulcanizate, the method comprising introducing an olefinic thermoplastic vulcanizate, a functionalized thermoplastic resin, and a surface-modified nanoclay, where the blending takes place at a temperature above the melt temperature of the thermoplastic vulcanizate but below the temperature at which the surface-modified nanoclay degrades.

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13-12-2011 дата публикации

Thermoplastic vulcanizates and their use

Номер: US8076416B2
Автор: Maria Dolores Ellul
Принадлежит: ExxonMobil Chemical Patents Inc

A thermoplastic vulcanizate comprising a dynamically cured rubber, and from about 20 to about 400 parts by weight of a thermoplastic resin per 100 parts by weight rubber, where said thermoplastic resin includes at least 0.1 percent by weight and less than 5.0 percent by weight, based upon the entire weight of said thermoplastic resin, of a long-chain branched polyolefin, with the remainder of said thermoplastic resin including a non-long-chain branched thermoplastic resin, where said long-chain branched polyolefin includes one or more polymers or copolymers having a viscosity average branching index <gN>vis of less than 0.9 and deriving from monomer selected from the group consisting of ethylene and mono-α-olefins, and where said non-long-chain thermoplastic resin includes one or more polymers or copolymers having a viscosity average branching index <gN>vis of 0.9 or more.

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15-05-2012 дата публикации

Thermoplastic vulcanizate composition

Номер: US8178625B2
Принадлежит: ExxonMobil Chemical Patents Inc

The instant disclosure is directed to a thermoplastic vulcanizate composition comprising a dynamically-cured rubber; from about 20 to about 300 parts by weight of a thermoplastic resin per 100 parts by weight rubber and from about 30 to about 250 parts by weight additional oil per 100 parts by weight rubber; wherein the rubber comprises a multimodal polymer composition cured with a curing agent, the multimodal polymer composition comprising 45 to 75 wt % of a first polymer fraction and 25 to 55 wt % of a second polymer fraction, each comprising ethylene, a C 3 -C 10 alpha-olefin, and a non-conjugated diene, wherein the polymer fractions have been polymerized using a Ziegler-Natta catalyst system, wherein the first polymer fraction has a Mooney viscosity of greater than or equal to about 150 ML(1+4@125° C.), and the second polymer fraction has a Mooney viscosity of about 20 ML to about 120 ML; and about 10 phr to about 50 phr of an extender oil. A method of producing the thermoplastic vulcanizate is also disclosed.

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07-02-2008 дата публикации

Multimodal ethylene-alpha-olefin elastomers and process for making

Номер: WO2008016467A1
Принадлежит: ExxonMobil Chemical Patents Inc.

Disclosed herein is a multimodal polymer composition comprising 45 to 75 wt% of a first polymer fraction, 25 to 55 wt% of a second polymer fraction, and from 10-50 phr of an extender oil. The multimodal polymer composition has an overall Mooney viscosity of less than 90 ML(1+4@125°C), and each polymer fraction comprises an ethylene, C3-C10 alpha-olefin, non-conjugated diene polymer, wherein the first polymer fraction has a Mooney viscosity of greater than or equal to about 150 ML(1+4@125°C), the second polymer fraction has a Mooney viscosity from about 20 to about 120 ML(1+4@125°C). A process for making the multimodal polymer composition comprising a process utilizing two or more reactors in series is also disclosed.

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03-03-2015 дата публикации

Peroxide cured TPV

Номер: US8969481B2
Принадлежит: ExxonMobil Chemical Patents Inc

Thermoplastic elastomer compositions and methods for making same. The elastomer composition can include at least one partially cured rubber component that is an ethylene-alpha-olefin-vinyl norbornene elastomeric polymer, and at least one thermoplastic component. The rubber component is at least partially cured using a peroxide curative in an amount effective to yield a cure level of the rubber component of at least 85%. The rubber component has a molecular weight distribution (MWD) less than 6, and a branching index greater than 0.60.

Подробнее
07-12-2005 дата публикации

Thermoplastic elastomers and process for making the same

Номер: EP1419183B1
Принадлежит: Advanced Elastomer Systems LP

A process for producing a thermoplastic elastomer composition, the process comprising synthesizing an elastomeric copolymer by polymerizing ethylene, an α-olefin, and optionally a diene monomer within the gas phase to thereby produce a gas-phase elastomeric copolymer, blending the gas-phase elastomeric copolymer with a thermoplastic polymer to form a mix of the elastomeric copolymer and thermoplastic polymer, and dynamically vulcanizing the gas-phase elastomeric copolymer within the mix of the elastomeric copolymer and thermoplastic polymer.

Подробнее
16-12-1999 дата публикации

Polypropylene thermoplastic elastomer compositions having improved processing properties and physical property balance

Номер: WO1999064510A1

Thermoplastic elastomer compositions having improved processability while maintaining good physical properties are prepared from a mixture of olefinic rubber and a polypropylene composition having a melt flow rate in the range of from about 0.5 to about 5 dg/min. and a molecular weight distribution Mw/Mn of greater than 5.5 up to about 20. The rubber component of the mixture may be at least partially cured by dynamic vulcanization.

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25-06-2009 дата публикации

Fiber-Reinforced Thermoplastic Vulcanizates

Номер: US20090163665A1
Принадлежит: Individual

A thermoplastic vulcanizate comprising of a dynamically-cured rubber; and a thermoplastic phase, where the thermoplastic phase includes fiber and the reaction product of a methylene donor and a methylene acceptor. The thermoplastic phase could include a functionalized thermoplastic resin.

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20-10-2009 дата публикации

Fiber-reinforced thermoplastic vulcanizates

Номер: US7605210B2
Принадлежит: ExxonMobil Chemical Patents Inc

A thermoplastic vulcanizate comprising of a dynamically-cured rubber; and a thermoplastic phase, where the thermoplastic phase includes fiber and the reaction product of a methylene donor and a methylene acceptor. The thermoplastic phase could include a functionalized thermoplastic resin.

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