Эструдер для повышающей вязкость обработки плавких полимеров

Изобретение относится к экструдеру для повышающей вязкость обработки плавких полимеров. Экструдер (100) содержит, по меньшей мере, корпус (10) с полостью (18) внутри корпуса, в которой с возможностью вращения установлен шнек (20) с по меньшей мере одним спиральным резьбовым выступом (31,...,35) шнека экструдера. Причем шнек (20) экструдера разделен в отношении своего наружного диаметра на начальную область (21) диаметров, среднюю область диаметров и концевую область диаметров. При этом средняя область диаметров имеет больший наружный диаметр, чем остальные области диаметров, между областями с разными диаметрами образована коническая переходная зона (22, 24), а в средней области диаметров образована по меньшей мере одна зона дегазации (23), которая имеет вырез в корпусе, из которого по меньшей мере одно отсасывающее отверстие (15) выходит на наружную сторону корпуса (10). Кроме того, шнек (20) экструдера в средней области диаметров выполнен так, что канал течения, образованный между сердцевиной ...

СПОСОБ ДЕГАЗАЦИИ, УСТРОЙСТВО ДЕГАЗАЦИИ И ПРИМЕНЕНИЕ ШНЕКОВЫХ ЭЛЕМЕНТОВ

FIELD: machine engineering. SUBSTANCE: degassing device includes an extruder having a body and n drilled holes of the body B n with the corresponding diameters D n . Wherein n is an integer, preferably, an integer from 1 to 16. Preferably, the drilled holes in the body to intersect one another and be parallel in the case when n is greater than 1. One or more rotatable shafts W n which in each case are concentrically arranged in one of the drilled holes of the body B n , have the axis of rotation A n and equipped with processing elements. The section profile of the shafts in the generatrix direction has m relative maximum R m max n of the radial extension value of the section profile to the axis A n of shaft rotation W n . Wherein M is an integer from 1 to 8. The maximum value R max n for the radial extension of the section profile to the axis A n of shaft rotation W n . Wherein, for R max n the relationship is the following: R max n <=(D n /2). A feeding zone, one or several degassing zones in each case including degassing opening suitable for withdrawal of volatile components of medium containing polymers from the extruder, an output zone. In terms of the processing elements, the extruder is equipped with screw elements SE with helix screw line movement t, which are designed so that at least two of the following three conditions are satisfied. 1) at the cross-section profile, for the radial extension of the profile curve, there is at least one relative maximum R m max n , for which it is true: 0.430 D n ≤R m max n <0.485 D n . 2) 1.60 D n <t<3.00 D n . 3) the cross-section profile of this particular screw element does not have active side surface on the front in the direction of rotation, in the region of the radial extension from 0.90 R max to R max of tangent angle b which is greater than 25°. The tangent angle b is defined as a smaller one among the two angles that are obtained by laying tangent to arbitrary point on profile section of the processing ...

ПОЛИАМИДНЫЙ СОСТАВ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

... 1. Способ получения полиамида или сополиамида, освобожденного от летучих компонентов, путем удаления летучих компонентов, в частности мономеров и димеров, по меньшей мере, в две стадии из полиамида 6 или сополиамида полиамида 6 в расплаве, отличающийся тем, что на первой стадии расплав полимера вводят, в частности при температуре от 200 до 300°С, в кожухотрубный теплообменник 2, выпаривают мономеры или димеры при температуре кожухотрубного теплообменника 2 от 250 до 300°С и удаляют летучие компоненты в последовательно включенном первом сепараторе 3 при давлении не более 300 мбар (300 гПа), предпочтительно от 10 до 300 мбар (от 10 до 300 гПа), особенно предпочтительно от 10 до 30 мбар (от 10 до 30 гПа), при температуре в первом сепараторе 3 от 250 до 300°С, что в полученный дегазированный полимер вводят предпочтительно газообразный разделительный агент 13, в частности азот, благородный газ, диоксид углерода или водяной пар, при молярном отношении разделительного агента к полимеру, по меньшей ...

VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON STAERKESCHMELZE SOWIE NACH DIESEM VERFAHREN ERHAELTLICHE PRODUKTE

Vorkoagulationsverfahren zur Einführung von organischen faserartigen Füllstoffen in SBR

Verfahren zur Verarbeitung von PET

EXTRAKTIONSVORRICHTUNG

Method and apparatus for flow coating with suck-back control

A method and apparatus for coating articles with a layer of plastic in which drippage of excess coating material onto the freshly coated articles is eliminated. A plurality of liquid plastic applicator nozzles positioned above a coating station supply coating material to an article. When the coating operation is completed, a suckback cycle is initiated creating a negative pressure inside the nozzles and drawing back into the nozzles any excess material. Where different amounts of coating material may be supplied to different zones on the article, each individual zone of applicator nozzles is independently controlled, both in the flow and suck-back cycles of operation.

Moulding composition

APPARATUS AND METHOD FOR SUBSEA LIQUID MIXING AND SAMPLING

APPARATUS AND METHOD FOR SUBSEA LIQUID MIXING AND SAMPLING

Slubbing machine for the thermoplastic matter extrusion.

APPARATUS AND METHOD FOR SUBSEA LIQUID MIXING AND SAMPLING

Recycled thermoplastic processing plant comprises two evacuated mixing vessels with temperature sensors, an inlet side vacuum sluice and an outlet to an extruder

Two vacuum-connected processing vessels are connected and have rotating tools for mixing and warming material. A material inlet (19) of the first vessel (1) is connected to a sluice (6). Tools rotate in both vessels and (19) is above the uppermost tools in (1). An outlet (49) from the second vessel (2) leads to an extruder (62). Temperature sensors (32) are located on each tool plane. A recycled thermoplastic processing plant comprises two vacuum-connected processing vessels connected to each other and having tools rotating around vertical axes for mixing and warming material. A material inlet (19) of the first vessel (1) is connected to a sluice (6). Tools rotate in several planes one above the other in both vessels and the inlet is above the uppermost tools in the first container. An outlet (49) from the second vessel (2) leads to an extruder (62) and is at the level of the lowest tools in the latter. A temperature sensor(32) is located on each tool plane in both vessels.

DEVICE FOR THE PROCESSING OF THERMOPLASTIC PLASTIC MATERIAL

MIXABLE POLYIMIDMISCHUNGEN

ADSORBENT SYSTEM FOR SUBSTITUTION OF THE WATER GAUGE IN A POLYESTER PROCEDURE

Injection system

Injektionssystem zum Mischen von Komponenten eines thermoplastischen Harzsystems mit zumindest einem Füllstoff (11) und Einbringen einer dabei entstehenden Mischung (33) in eine Formkavität (35) eines Formwerkzeugs (2) mit - einem Mischbehälter (34), welcher mit der Formkavität (2) fließtechnisch verbindbar ist, - einer ersten Einbringvorrichtung (31) zum Einbringen des zumindest einen Füllstoffs (11) in den Mischbehälter (34), - einer von der der ersten Einbringvorrichtung (31) gesonderten zweiten Einbringvorrichtung (32) zum gemeinsamen oder getrennten Einbringen der Komponenten des thermoplastischen Harzsystems in den Mischbehälter (34) und - einem Kolben (9) zum gemeinsamen Verbringen der im Mischbehälter (34) befindlichen Mischung (33) aus dem Mischbehälter (34) in die Formkavität (35).

SNAIL MACHINE

AUFSPRÜHEN OF PLASTIC ADDITIVES ON PLASTIC

DEVICE AND PROCEDURE FOR THE PRODUCTION OF RUBBER MIXTURES.

PROCEDURE AND STAGE FOR THE TREATMENT OF A THERMOPLAST MELTING WITH A GEAR PUMP

PROCEDURE AND DEVICE FOR PROCESSING THERMALLY SENSITIVE ONE, THERMOPLASTIC PLASTICS

EXTRUSION FOR THE PRODUCTION OF PLASTIC MELTS

PROCEDURE FOR THE PROCESSING OF PET

VACUUM MIXING APPARATUS FOR THE REACTION POURING OF PLASTICS

Extrusion press

PROCESSING POLYMERIC MATERIAL

Process to make polycarbonate from bismethylsalicylcarbonate

METHOD AND APPARATUS FOR FORMING AND DISPENSING SINGLE AND MULTIPLE PHASE COATING MATERIAL CONTAINING FLUID DILUENT

Method for removing water and other volatile components from polymer powders

CONSTRUCTION MATERIAL COMPRISING A COATED FILLER AND PLASTICS

Spray application of plastic additives to polymers

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the flakes through a PET crystallizer; (E) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 18 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.

DOUBLE-SIDED ADHESIVE TAPE COMPRISING A FIRST OUTER, PRESSURE-SENSITIVE ADHESIVE SIDE, AND A SECOND OUTER SIDE WHICH CAN BE THERMALLY-ACTIVATED

The invention relates to a double-sided adhesive tape that has a first outer, pressure-sensitive adhesive side and a second outer, thermally-activatable side, and that comprises an at least dual-layered product construction consisting of layers A and B, layer A being a pressure-sensitive adhesive layer that is chemically cross-linked by thermal initiation, or being a pressure-sensitively adhesive carrier layer chemically cross-linked by thermal initiation, layer B being a thermoplastic synthetic material-based layer, layers A and B being in direct contact with one another, and the surface of layer A, which is in direct contact with layer B, having been corona or plasma pre-treated. The invention is characterised in that said corona or plasma pre-treatment takes place in an atmosphere consisting of nitrogen, carbon dioxide or a noble gas, or a mixture of at least two of these gases.

VACUUM KNEADING AND EXTRUDING METHOD AND APPARATUS

A vacuum kneading and extruding method includes the steps of separately and continuously measuring plural types of material and continuously feeding the material into a kneading and degrassing tank; kneading the plural types of material fed, and degrassing the material by decompressing a material accommodating space into a vacuum; kneading and transporting the material in a decompressed condition through a multi-stage kneading mechanism; and forming and extruding kneading material in a predetermined shape. An apparatus for use in executing this method is also disclosed.

Process and Apparatus for Producing Starch Melt and Products Obtainable by This Process

EMBEDDING AND ENCAPSULATION OF CONTROLLED RELEASE PARTICLES

Controlled release, discrete, solid particles which contain an encapsulated and/or embedded component such as a heat sensitive or readily oxidizable pharmaceutically, biologically, or nutritionally active component are continuously produced without substantial destruction of the matrix material or encapsulant. A release-rate controlling component is incorporated into the matrix to control the rate of release of the encapsulant from the particles. The additional component may be a hydrophobic component or a high water binding capacity component for extending the release time. The plasticizable matrix material, such as starch, is admixed with at least one plasticizer, such as water, and at least one release-rate controlling component under low shear mixing conditions to plasticize the plasticizable material without substantially destroying the at least one plasticizable material and to obtain a substantially homogeneous plasticized mass. The plasticizer content is substantially reduced and ...

Verfahren zur Mastizierung von Kautschuk.

Spritzgussmaschine mit Vakuumentgasung der plastifizierten Masse

Pressa ad estrusione per resine termoplastiche

Schnecken-Strangpresse mit Einrichtung zur Absaugung gasförmiger Komponenten

Schneckenpresse

Vorrichtung zum Entfernen von in flüssigen Kunststoffschmelzen enthaltenen flüchtigen Bestandteilen

Vorrichtung zum Kunststoffspritzgiessen

Verfahren und Vorrichtung mit zwei Schneckenpressen in Kaskadenanordnung zum Verarbeiten und Entgasen pulverförmiger thermoplastischer Kunststoffe

VERFAHREN ZUR HERSTELLUNG VON PIGMENTIERTEM BESCHICHTUNGSPULVER.

Verfahren zum Behandeln von staub- und pulverförmigen Materialien und Einrichtung zur Ausübung des Verfahrens

Schnecken-Strangpresse

CONSTRUCTION MATERIAL AND PROCEDURE FOR THE PRODUCTION OF THE SAME.

Appliance for mixing and degassing a mix consisting of epoxy resin, hardener, accelerator and fillers

Mixing and degassing of epoxy resins enriched with fillers, hardener and accelerator is accomplished by employing a closed mixing section which in detail consists of a heatable or coolable double-jacketed (1) and double-bottomed (13) mixing vessel (2), a vessel cover (11) and a stirring device (3) which is centrally arranged in the vessel cover (11), is individually driven by a motor (12), and whose stirring tool driven by the stirring device is coupled in effective connection with a conical lateral surface (10). Attached to the mixing vessel (2) by an intake port (4) and a line (5) having an orifice (8) fitted therein, the delivery tube (6) with a conveyor screw (7) supported therein which is separately driven by a motor (9). ...

Cone-mixer and-dryer.

Die Erfindung betrifft einen Konus-Mischer und -Trockner, beinhaltend einen konischen Mischbehälter (18) mit konischem Innenmantel, welcher einen konischen Misch- und Trockenraum (8) definiert zur Aufnahme von Misch- und Trockengut, wobei in den Misch- und Trockenraum (8) mindestens zwei von mindestens einem Motor (51) drehend antreibbare Antriebswellen (63) ragen, an welche je ein Mischwerkzeug (12) lösbar und unabhängig voneinander einzeln an die Antriebswellen (63) ankoppelbar und drehend antreibbar sind, und wobei mindestens zwei der Antriebswellen durch je einen eigenen Antriebsmotor oder durch einen gemeinsamen Antriebsmotor, mit einem in der Drehzahl veränderbaren Schaltgetriebe für jede Antriebswelle, antreibbar sind. Aufgabe ist es, einen kostengünstigen Konus-Mischer und -Trockner derart weiterzubilden, dass dieser möglichst klein ist, jedoch immer noch vergleichbare Ergebnisse im Hinblick auf das Mischen und ggfs. das Trocknen der Substanzen bringen, die eine Konstruktion wesentlich ...

Conical mixer and dryer comprises conical mixing vessel with conical inner casing, which defines conical mixing and drying chamber for receiving mixing- and drying material

The conical mixer and dryer comprises a conical mixing vessel (18) with a conical inner casing, which defines a conical mixing and drying chamber (8) for receiving mixing- and drying material. Two drive shafts (19,63) project into the mixing and drying chamber. The drive shafts are driven by an individual drive motor or by a common drive motor with a shift gearbox for each drive shaft.

Cellulose acylate film and method for manufacturing the same

According to the present invention, a film is formed from a powdered cellulose acylate resin using a twin-screw extruder which has complete-mating-type screws and whose L/D is set in the range of 20 to 55, while setting the temperature of the resin in the extruder in the range of Tm + 10 DEG C to Tm + 70 DEG C, keeping the average residence time of the cellulose acylate resin within 5 minutes, and drawing a vacuum so that the degree of vacuum in extruder after the powdered cellulose acylate resin has been melted is kept at 100 Torr or lower, whereby the color change or deterioration in mechanical strength of the resin can be decreased, and thus, a high-quality and high-functionality film which is good for the optical application can be provided.

Pressure-sensitive adhesive

The aim is to provide a pressure-sensitive adhesive for bonding to various surfaces, such as metals, surfaces of plastics such as PP, PE, polycarbonate, and also vehicle finishes, said adhesive rapidly wetting these surfaces and at the same time developing high adhesion. The pressure-sensitive adhesive is to have good shear strengths and bond strengths under different conditions and is not to undergo dewetting even under lasting mechanical load. This is accomplished with a press-sensitive adhesive which comprises a) at least 50 wt%, based on the total weight of the pressure-sensitive adhesive, of at least one polymer A whose monomer basis comprises the following monomers: a1) at least one (meth)acrylic ester having a homopolymer glass transition temperature of not more than -60 DEG C and an alcohol component based on a branched, primary alcohol, having an iso index of 1; a2) at least one (meth)acrylic ester having an alcohol component based on a linear C1-C18 alcohol; a3) acrylic acid; ...

Thermally vulcanisable adhesive and adhesive strip produced therefrom

The invention relates to a thermally vulcanisable, meltable, preferably touch-sensitive adhesive, comprising a meltable polybutadiene-polyurethane, ground sulphur and optionally at least one vulcanisation accelerator, at least one filling material, at least one epoxide resin, at least one tackifier resin, bitumen, at least one softener and further auxiliary and additive materials, wherein said adhesive can be thermally vulcanised within a temperature range of 130 DEG C to 230 DEG C, such that same, as well as an adhesive strip produced from same, can be used for adhesion and/or sealing in the automotive industry, as well as in structural work on oiled sheet metal, and in the painting line on e-coated or otherwise painted sheet metal, for example, for crimp fold adhesion, for crimp fold sealing, for seam sealing, for lining adhesion, for hole closure and much more.

Hydroxyl-Functionalised Polyurethane Hot Melt Prepolymer

The invention relates to hydroxyl-functionalised polyurethane hot melt prepolymers comprising the chemical reaction product of isocyanate-reactive starting materials with at least one isocyanate-containing starting material. Said prepolymers are characterised in that the isocyanate-reactive starting materials of the hydroxyl-functionalised polyurethane hot melt prepolymers have a polypropylene glycol with a functionality higher than two and a number-average molar mass higher than or equal to 3,000 g/mol, a polypropylene glycol with a functionality less than or equal to two and a number-average molar mass less than or equal to 1,000 g/mol, and a chain lengthener with a functionality less than or equal to 500 g/mol, and the isocyanate-containing starting material of the hydroxyl-functionalised polyurethane hot melt prepolymer has an aliphatic or alicyclic diisocyanate.

Method and apparatus for making pellets of wood meal compound

A method and apparatus for making pellets of wood meal compound according to the present invention is constructed in such a manner that synthetic resin material and wood meal material are supplied into a hopper ( 3 ) in a most upstream position, and kneaded in a long kneading section ( 6 ) having no side feeder ( 2 ), thereby to obtain pellets from mixed material having more uniform properties than in the prior art.

METHOD FOR PRODUCING SPACERS FOR A WINDING UNIT

SYSTEM FOR ANALYZING MATERIAL SYSTEMS

СПОСОБ ПРОИЗВОДСТВА ГАЛОБУТИЛОВЫХ КАУЧУКОВ, НЕ СОДЕРЖАЩИХ ВОДУ И РАСТВОРИТЕЛЬ

Настоящее изобретение относится к способу удаления летучих соединений из текучей среды, содержащей галогенированный бутиловый каучук. Способ включает следующие стадии: а) обработку текучей среды, содержащей галогенированный бутиловый каучук и, по меньшей мере, одно летучее соединение, в концентрирующей установке, содержащей нагреватель (2), сосуд для дегазации (4) и испарительный трубопровод (4.1), с получением концентрированной текучей среды, b) повторный нагрев полученной концентрированной текучей среды в установке для повторного нагревания (6) с получением повторно нагретой концентрированной текучей среды и с) подачу этой повторно нагретой концентрированной текучей среды в экструдер. Данный способ является непрерывным, энергосберегающим, экологически и экономически благоприятным и позволяет получить галогенированный бутиловый каучук, по существу свободный от летучих соединений. 13 з.п. ф-лы, 12 ил., 10 табл., 23 пр.

СПОСОБ ВВЕДЕНИЯ КОМПОНЕНТА ПРОЦЕССА ПОЛУЧЕНИЯ СЛОЖНОГО ПОЛИЭФИРА В РЕАКЦИОННУЮ СМЕСЬ ПРИ ИСПОЛЬЗОВАНИИ РЕЦИРКУЛЯЦИИ (ВАРИАНТЫ)

Изобретение относится к способам промышленного получения сложных полиэфиров с использованием контура рециркуляции. Техническая задача: разработка компактного и экономически эффективного способа введения твердых реагентов-предшественников сложных полиэфиров в реакционную смесь. Предложен способ введения компонента в текучую среду реакции и/или текучую среду процесса, включающий стадии: (а) создания контура рециркуляции, содержащего втекающий поток и вытекающий поток, где втекающий поток сообщается через текучую среду с текучей средой реакции; (b) рециркуляции, по меньшей мере, части текучей среды реакции со стадии (a) через контур рециркуляции, где текучая среда реакции, протекающая через контур рециркуляции, представляет собой рециркуляционную текучую среду; (с) уменьшения давления рециркуляционной текучей среды со стадии (b) при помощи, по меньшей мере, одного устройства для уменьшения давления, по меньшей мере, в одной точке контура рециркуляции; и (d) подачи компонента в контур рециркуляции ...

СИСТЕМА И СПОСОБ ПРОИЗВОДСТВА ЖЕВАТЕЛЬНОЙ РЕЗИНКИ

Способ производства жевательной резинки предусматривает подачу одного или нескольких ингредиентов резинки, включая по меньшей мере эластомер, в экструдер непрерывного действия, содержащий множество шнеков; вращение указанного множества шнеков и перемешивание указанного одного или нескольких ингредиентов посредством вращения множества шнеков в экструдере непрерывного действия. В итоге образуется по меньшей мере составляющая основы жевательной резинки. Далее создают поток составляющей основы жевательной резинки, содержащей указанный один или несколько ингредиентов, через указанный экструдер непрерывного действия в направлении находящегося ниже по потоку участка указанного множества шнеков посредством вращения и перемещают указанный поток указанной по меньшей мере составляющей основы жевательной резинки в область указанного экструдера непрерывного действия, которая находится вблизи указанного находящегося ниже по потоку участка указанного множества шнеков. Причем указанный поток имеет температуру ...

СМЕСИТЕЛЬНОЕ УСТРОЙСТВО С УДЕРЖИВАЮЩИМ ДАВЛЕНИЕ ПРИСПОСОБЛЕНИЕМ

Изобретение относится к смесительному устройству и к способу изготовления вспененного материала, с помощью которого можно изготавливать с применением соответствующего смесительного устройства вспененные материалы, которые имеют различные возможности применения, например, в качестве уплотнений. Смесительное устройство (1) содержит по меньшей мере одно подводящее отверстие (2) по меньшей мере для одной жидкости и по меньшей мере одно другое подводящее отверстие (3) по меньшей мере для одного жидкого отверждающего или сшивающего средства, при этом жидкость и/или жидкое отверждающее или сшивающее средство смешаны с газом, и выпускное отверстие (4) для выпуска изготавливаемой в смесительном устройстве смеси по меньшей мере из одной жидкости и по меньшей мере одного жидкого отверждающего или сшивающего средства, при этом предусмотрено удерживающее давление приспособление для удержания задаваемого давления больше того давления, при котором происходит вспенивающее выделение газа в смесительном ...

СИСТЕМА И СПОСОБ ПРОИЗВОДСТВА ЖЕВАТЕЛЬНОЙ РЕЗИНКИ

... 1. Способ производства жевательной резинки, включающийподачу одного или нескольких ингредиентов резинки, включая по меньшей мере эластомер, в экструдер непрерывного действия, содержащий множество шнеков;вращение указанного множества шнеков и перемешивание указанного одного или нескольких ингредиентов посредством указанного вращения указанного множества шнеков в указанном экструдере непрерывного действия;образование по меньшей мере составляющей основы жевательной резинки посредством указанного перемешивания указанного одного или нескольких ингредиентов;создание потока указанной по меньшей мере составляющей основы жевательной резинки, содержащей указанный один или несколько ингредиентов, через указанный экструдер непрерывного действия в направлении находящегося ниже по потоку участка указанного множества шнеков посредством указанного вращения; иперемещение указанного потока указанной по меньшей мере составляющей основы жевательной резинки в область указанного экструдера непрерывного действия ...

ЭКСТРУДЕР ДЛЯ ПЕРЕРАБОТКИ ТЕРМОПЛАСТИЧНЫХ ПОЛИМЕРНЫХ МАТЕРИАЛОВ

... 1. Экструдер для переработки термопластичных полимерных материалов, имеющий (а) корпус (1), включающий последовательно расположенные и сообщающиеся общим каналом экструзии секцию (3) загрузки сырья, секцию (5) пластикации сырья, секцию (6) дегазации расплава, которая оснащена вентиляционным каналом (8) для отсоса летучих веществ, и секцию (9) выдавливания, соответствующий которой участок канала экструзии имеет диаметр, превышающий диаметр этого же канала по меньшей мере в секции (3) загрузки и секции (5) пластикации сырья; (б) шнек, который размещен в канале экструзии и имеет переменный диаметр, соответствующий диаметрам частей канала экструзии в указанных секциях; (в) стрейнер, который выполнен в виде перфорированного цилиндра (12), закреплен на шнеке (2) в секции (6) дегазации и разделяет кольцевое пространство между сердечником шнека (2) и стенкой корпуса (1) на внутренний "с" и внешний "d" соосные кольцевые каналы, сообщающиеся через отверстия в стенке указанного цилиндра (12), и (г ...

GAS FEEDING-REMOVING APPARATUS FOR THERMOPLASTIC MOLTEN BATH OF SYNTHETIC MATERIAL

Strangpresse zum Vergueten von Kunstharzstoffen

Mixing and injecting plastics, esp polyurethane into a mould - with sudden applied suction to prevent follow-up injection

A method of cyclically injecting or casting flowable plastics, esp. polyurethane, into moulds is carried out using a casting head comprising a mixing chamber, into which the separate components are supplied in sufficient quantity for one cycle; after injection has been completed, the feed of components is cut off and a partial vacuum is immediately created in the mixing chamber, esp. by increasing the volume of this chamber, to prevent a further flow of undesired material into the mould. a positive cut-off of feed of mixture into the mould is ensured by the sudden increase in size of the mixing chamber and consequent reduction in pressure.

Verfahren zur Herstellung von peroxidhaltigen Pasten bzw.plastischen Massen.

automatic color pellet selecting and supplying apparatus for an injection mould -ing machine.

An apparatus for automatically selecting one from color pellets of different colors and automatically supplying it to an injection molding machine, comprises: an auxiliary hopper connected to a pellet supply portion of the injection molding machine via an automatic change-over valve; a negative pressure device for causing the auxiliary hopper, at the upstream side chamber, to be under negative pressure; a pellet feed pipe connected to the upstream side chamber of the auxiliary hopper; and storage tanks for storing the respective color pellets, each storage tank being connected to the pellet feed pipe via a respective automatic change-over valve.

Apparatus for removing volatile constituents contained in liquid synthetic plastic melts

... 989,449. Removal of volatile constituents from plastic melts; evaporators. FARBENFABRIKEN BAYER A.G. Dec. 17, 1962 [Dec. 22, 1961], No. 45768/62. Heading BIB. An evaporator for removing volatile constituents from plastic melts comprises a vertical cylindrical chamber 8, in which rotates a worm 9 so that the edge of its thread is in wiping contact with the inside wall of the chamber, the lower section of the chamber having an annular horizontal slot 11 which communicates with an annular chamber 13 connected via outlet 14 to a vacuum pump (not shown). The evaporator is heated by radiant heating means 25 and heating jacket 24. The plastic melt to be treated enters chamber 8 via line 1, gear pump 2, pipe 4 and worm 5, and flows down the hot inside surface of the chamber and the thread of worm 9. The volatile constituents are vaporized and the vapours pass into chamber 13 via slot 11, and are withdrawn via outlet 14. The edges of slot 11 are sharp, and a lip 12 is provided on the lower edge ...

PROCEDURE FOR THE PRODUCTION OF A DUCTILE MASS AND THEIR USE FOR THE PRODUCTION OF EMISSIONSARMER FLOOR MATS

IMBEDDING AND A PACKAGING FROM PARTICLES TO THE CONTROLLED DELIVERY

PROCEDURES FOR THE PRODUCTION OF FILLING, MODIFIED ONE AND WITH FIBERS STRENGTHENED THERMOPLASTICS AND DOUBLE SCREW-TYPE EXTRUDING MACHINES FOR THE EXECUTION OF THE PROCEDURE

DEGASSING DEVICE FOR EXTRUSION

VORRICHTUNG ZUR AUFBEREITUNG VON THERMOPLASTISCHEM KUNSTSTOFFMATERIAL

Injection system

Injektionssystem zum Mischen von Komponenten eines thermoplastischen Harzsystems mit zumindest einem Füllstoff (11) und Einbringen einer dabei entstehenden Mischung (33) in eine Formkavität (35) eines Formwerkzeugs (2) mit - einem Mischbehälter (34), welcher mit der Formkavität (2) fließtechnisch verbindbar ist, - einer ersten Einbringvorrichtung (31) zum Einbringen des zumindest einen Füllstoffs (11) in den Mischbehälter (34), - einer von der der ersten Einbringvorrichtung (31) gesonderten zweiten Einbringvorrichtung (32) zum gemeinsamen oder getrennten Einbringen der Komponenten des thermoplastischen Harzsystems in den Mischbehälter (34) und - einem Kolben (9) zum gemeinsamen Verbringen der im Mischbehälter (34) befindlichen Mischung (33) aus dem Mischbehälter (34) in die Formkavität (35).

PROCEDURE FOR THE PRODUCTION A HYDROPHOBEN BIOLOGICAL OF A DEGRADABLE MATERIAL

EXTRACTION DEVICE

DEVICE AND PROCEDURE FOR EXTRUDING THERMOPLASTICS AND USE OF IT.

VORRICHTUNG ZUM EXTRUDIEREN VON THERMOPLASTISCHEM KUNSTSTOFFMATERIAL

The invention relates to a device for extruding thermoplastic plastic material, comprising a screw extruder (1 to 5), which can be supplied with plastic material from a reservoir (11) through an inlet (6) of the housing of the screw extruder by a feed conveyor (7 to 9), wherein a suction apparatus (17 to 20) for released gases and a control apparatus are provided, wherein the feed conveyor (7 to 9), which is designed as a controllable metering conveyor, is arranged in a conveyor housing (7) tightly connected to the inlet (12) and is connected to the suction apparatus (18) and wherein the feed conveyor (7 to 9) is also tightly connected to the reservoir (11). In order to create advantageous conditions, the reservoir (11) can be tightly closed on the inlet and outlet sides by means of shut-off apparatuses, and the reservoir (11) is equipped with a heater and connected to the or a suction apparatus (19) in order to pretreat the plastic material.

MISCHUNG UND VERFAHREN ZU IHRER HERSTELLUNG

MIXTURE AND PROCEDURE FOR YOUR PRODUCTION

PROCEDURE FOR THE PRODUCTION OF POLYESTER ARTICLE WITH SMALL ACETALDEHYDE CONTENT

CONTINUOUS PROCEDURE FOR THE PRODUCTION OF AMINO AND/OR PHENOLIC PLASTICS

EXTRUDER VENTING DEVICE

Adsorber system to replace water column in a polyester process

METHOD FOR FLOW COATING WITH SUCK BACK CONTROL

Graphene polyethylene terephthalate composite for improving reheat energy consumption

A graphene reinforced polyethylene terephthalate composition is provided for forming graphene-PET containers. The graphene reinforced polyethylene terephthalate composition includes a continuous matrix comprising polyethylene terephthalate and a dispersed reinforcement phase comprising graphene nanoplatelets. The graphene nanoplatelets range in diameter between 5 μm and 10 μm with surface areas ranging from about 15 m ...

Mixing device with a pressure holding device

The invention relates to a mixing device (1) comprising at least one supply opening (2) for at least one liquid and comprising at least one additional supply opening (3) for at least one liquid curing or crosslinking agent. The liquid and/or the liquid curing or crosslinking agent is/are mixed with a gas. The mixing device also comprises a discharge opening (4) for discharging a mixture, which can be produced in the mixing device, of the at least one liquid and the at least one liquid curing or crosslinking agent. A pressure holding device is provided for holding a specifiable pressure which is higher than the pressure at which the gas in the mixing device (1) is foamed.

System and methods for manufacturing bulked continuous filament

Abstract A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) 5 identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintain the pressure within the MRS portion of the MRS extruder below about 1.5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of 0 recycled PET. 6629064_1 ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the flakes through a PET crystallizer; (E) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 18 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 11665479_2 WO 20161081474 PCT[US2OI5/061116 C) C) CC) LiiL C0 C) C) C)C ...

Mixing

ROTARY PROCESSOR

A multi-stage rotary processor for plastic and polymeric materials which are, or become in the course of processing, viscous liquids, including an annular housing, a rotor coaxial with and rotatable with respect to the housing and having a cylindrical surface in slidable sealing relation with the interior of the housing, a plurality of annular channels formed in the cylindrical surface and cooperating with the housing to form annular processing passages, transfer passages, which are preferably channels in the surface of the housing for cooperation with the cylindrical portions of the rotor, to provide passage for transfer of material between processing passages and blocking members extending into the channels to hold material in the processing passages for relative movement with respect to the channel walls for processing. In a preferred structure the transfer channels are formed and the blocking members may be mounted in removable flow director units including surfaces forming part of ...

INSTALLATION AND METHOD FOR TREATING A PLASTIC MELT

The invention relates to an installation (1) and a method for treating a plastic melt, comprising a reactor (2) that has a reactor housing (3) consisting of first and second reactor housing parts (4, 5); a mixing element (12) being arranged in the second reactor housing part (5) and mounted thereupon so as to rotate about a rotational axis (13); and said reactor, together with a discharge device (19) and with at least one weighing device (21) connected between these, being supported on a contact area.

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of recycling polymers and other plastics comprises: (A) grinding recycled PET bottles (or other suitable recycled polymer) into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) preparing the polymer melt for recycling into a new product. In various embodiments, the above process may be utilized in the recycling of, for example, polytrimethylene terephthalate (PTT), polypropylene, polyvinyl chloride (PVC), high-density polyethylene (HDPE), polystyrene (PS), expanded polystyrene (EPS), or any other suitable polymer or plastic ...

METHOD OF MAKING CELLULOSIC - THERMOPLASTIC COMPOSITES OF AN ANHYDRIDE CONTAINING COPOLYMER

A method of making foamed articles that includes providing a copolymer composition, combining the copolymer composition and cellulosic fibers, applying heat, mixing energy and pressure to the copolymer composition and cellulosic fibers mixture to form a foamable mixture, and forming the foamed article by placing the foamable mixture in a molding or extruding operation. The copolymer composition includes a copolymer of 51% to 99.9% of primary monomers, 0.1% to 49% of anhydride containing monomers, and 0% to 25% of other monomers and 0% to 30% of elastomeric polymers. This is combined at 30% to 99.99% copolymer composition with 0.01% to 70% by cellulosic fibers such that the copolymer anhydride groups react with the cellulosic fiber hydroxyl groups to produce a blowing agent byproduct to form a foamable mixture. The foamed article has a density of not more than 1.3 g/cm3.

Apparatus and process for de-airing material in an extruder

An extruder for feeding material and for removing gas from the fed material. The extruder includes a vent block positioned between a first and second auger. The vent block including a vent cavity having a feed end and an exit end, an inner feed ring that partially extends into said vent cavity at the feed end of the vent cavity, and a screw element rotatably positioned in the vent cavity. A front portion of the outer ring is longitudinally aligned with or overlapping the front end of the inner feed ring. The outer ring forms at least one gap or opening at or adjacent the feed end of the vent cavity to enable gas to flow out of the vent cavity as material is moved though the vent cavity from the feed end to the exit end by the screw element.

KNEADING APPARATUS AND METHOD FOR PRODUCING THERMOPLASTIC RESIN MOLDED PRODUCT

A kneading apparatus includes a plasticizing cylinder in which a high pressure kneading zone and a pressure reduction zone are formed adjacently in this order from an upstream side so that a molten resin obtained by plasticizing a thermoplastic resin and a pressurized fluid are kneaded with each other in the high pressure kneading zone, and gasified pressurized fluid, which is gasified by reducing a resin internal pressure, is separated in the pressure reduction zone from the molten resin kneaded with the pressurized fluid, a screw which is arranged rotatably and movably back and forth in the plasticizing cylinder; and a downstream side seal mechanism which is provided between the high pressure kneading zone and the pressure reduction zone and which makes communication and disconnection between the high pressure kneading zone and the pressure reduction zone in accordance with a rotation state of the screw. 1. A kneading apparatus comprising:a plasticizing cylinder in which a high pressure kneading zone and a pressure reduction zone are formed adjacently in this order from an upstream side so that a molten resin obtained by plasticizing a thermoplastic resin and a pressurized fluid are kneaded with each other in the high pressure kneading zone, and gasified pressurized fluid, which is gasified by reducing a resin internal pressure, is separated in the pressure reduction zone from the molten resin kneaded with the pressurized fluid,a screw which is arranged rotatably and movably back and forth in the plasticizing cylinder; anda downstream side seal mechanism which is provided between the high pressure kneading zone and the pressure reduction zone and which makes communication and disconnection between the high pressure kneading zone and the pressure reduction zone in accordance with a rotation state of the screw.2. The kneading apparatus according to claim 1 , wherein the downstream side seal mechanism disconnects the high pressure kneading zone from the pressure ...

Composite Sheet With Visible Filler And Manufacturing Method

A solid surface sheet includes visible, elongated, shredded cuttings uniformly distributed throughout a matrix wherein the cuttings and the matrix have substantially the same specific weight and wherein a majority of the cuttings are substantially elongated. Related methods are also disclosed including shredding a first mix while in a gel state, curing the cuttings, sorting by size, and using as a filler in a base material to form a blend having a unique appearance and high internal strength. The preferred material is polyester or acrylic. The solid surface sheet can be used as a countertop, floor or wall panel, furniture, and in similar applications. 1. A particulate for incorporation into a matrix of material curable into a solid surface material , the particulate comprising: a plurality of cuttings having a shredded and elongated configuration.2. The particulate of wherein each cutting of the plurality of cuttings comprises at least one of polyester and acrylic.3. The particulate of wherein the matrix and the plurality of cuttings have substantially the same specific weight.4. The particulate of claim 1 , wherein the cuttings are made by cutting a thermoset polymeric material that is partially cured to a gel.5. The particulate of wherein a plurality of the plurality of cuttings each have a length that is between ½ and 1 inch.6. The particulate of wherein a plurality of the plurality of cuttings each have a length at least three times greater than a width.7. A solid surface material comprising:a matrix including a resin;a particulate comprising a plurality of cuttings having a shredded and elongated configuration,wherein the particulate is added to the matrix and the matrix is properly hardened.8. The solid surface material of claim 7 , wherein the cuttings are distributed throughout the matrix and wherein a significant visible number of the cuttings are elongated on a show surface side of the sheet.9. The solid surface material of claim 7 , wherein the matrix and ...

INSTALLATION FOR PRODUCING A POLYMER MELT AND USE OF SUCH AN INSTALLATION FOR PRODUCING A POLYMER MELT FOR A POROUS FILM

An installation for producing a polymer melt for a porous film, in particular for a membrane film, comprises a planetary roller extruder. Said extruder is used to produce a flowable polymer melt from thermoplastics. The planetary roller extruder has a filling opening and a discharge side for delivering the polymer melt. A melt pump is further provided. The discharge side of the planetary roller extruder is connected to a downstream inlet side of the melt pump for further conveying the polymer melt. The connection is in the form of a pressure channel shielded from the ambient atmosphere or a pressure line shielded from the ambient atmosphere. The planetary roller extruder and the melt pump are designed and/or can be driven in such a manner that the polymer melt is applied or can be transferred under pressure at the melt pump on the inlet side. 2. Installation according to claim 1 , wherein:the pressure under which the polymer melt is applied or can be transferred at the inlet side of the melt pump is greater than 4 bar, 5 bar, 6 bar, 7 bar, 8 bar, 9 bar, 10 bar, 11 bar 13 bar, 15 bar 17 bar or greater than 19 bar.3. Installation according to claim 1 , wherein:in order to increase the pressure under which the polymer melt is applied or can be transferred at the inlet side of the melt pump, the melt pump is designed to reduce the pump speed thereof in such a manner that the polymer melt backs up from the inlet side of the melt pump towards the discharge side of the planetary roller extruder, the continuous material flow of the further polymer melt counteracting this backflow in such a manner that the pressure is increased.4. Installation according to claim 1 , wherein:the filling opening is provided as a common filling opening for a polymer, in particular for a powdered polymer, and for fillers, in particular in the form of liquid components.5. Installation according to claim 1 , wherein:a drive apparatus is provided for driving the planetary roller extruder;the ...

HYDROXYL FUNCTIONALIZED POLYBUTADIENE POLYURETHANE HOTMELT PREPOLYMER

A hydroxyl-functionalized polybutadiene polyurethane hotmelt prepolymer that comprises the chemical reaction product of at least one polybutadiene diol, at least one chain extender having a hydroxyl functionality of two and a molecular weight of less than or equal to 300 g/mol and optionally at least one polybutadiene polyol that has a number-average mean functionality between greater than 2.0 and less than or equal to 3.0 with at least one aliphatic or alicyclic diisocyanate, is thermally vulcanizable, and at room temperature is sufficiently solid or high-viscosity that it can be rolled into a roll as a film applied to a carrier without flowing out or being squeezed out on the side. 1. A hydroxyl-functionalized polybutadiene polyurethane hotmelt prepolymer , comprising the chemical reaction product of at least one polybutadiene diol , at least one chain extender having a hydroxyl functionality of two and a molecular weight of less than or equal to 300 g/moland optionally at least one polybutadiene polyol with a number-average mean functionality between greater than 2.0 and less than or equal to 3,0 with at least one aliphatic or alicyclic diisocyanate.2. The hydroxyl-functionalized polybutadiene polyurethane hotmelt prepolymer according to claim 1 , wherein the at least one polybutadiene diol has a number-average mean molecular weight between greater than 1 claim 1 ,000 g/mol and less than 5 claim 1 ,000 g/mol.3. The hydroxyl-functionalized polybutadiene polyurethane hotmelt prepolymer of claim 1 , includes the at least one polybutadiene polyol which has a number-average mean functionality between greater than 2.0 and less than or equal to 3.0 and has a number-average mean molecular weight between greater than 1 claim 1 ,000 g/mol and less than 5 claim 1 ,000 g/mol.4. The hydroxyl-functionalized polybutadiene polyurethane hotmelt prepolymer according to claim 1 , wherein the numerical proportion of the hydroxyl groups introduced for forming the hydroxyl- ...

Systems and methods for manufacturing bulked continuous filament

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an expanded surface area extruder while maintaining a pressure within the expanded surface area extruder below about 25 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.

Systems and methods for drying pellets and other materials

Systems and methods for manufacturing pellets are disclosed herein. The systems and methods can include improved drying systems and techniques. In some embodiments, for example, the systems and methods can make use of one or more vacuum dryers and various other improvements related thereto.

INJECTION MOULDING MACHINE HAVING A COATING INSTALLATION

The invention relates to an injection moulding machine having a coating installation, wherein the injection moulding machine has at least one fixed platen and one movable platen for the fastening of mould tool halves of at least one mould tool, and the coating installation has first pressure-generating and/or first pressure-conducting means for coating components at a first, relatively low pressure level and second pressure-generating and/or second pressure-conducting means for the coating components at a second, relatively high pressure level, wherein at least all second pressure-generating and all second pressure-conducting means are coupled to the movable platen so as to be jointly movable along a movement path of the movable platen. 115.-. (canceled)16. An injection moulding machine , comprising:a machine bed;a fixed platen supported on the machine bed and having fastened thereon a mould tool half;a movable platen supported on the machine bed for movement in relation to the fixed platen and having fastened thereon a mould tool half; anda coating installation including a low pressure part for supply of coating components at a first pressure level, and a high pressure part for supply of the coating components at a second pressure level which is higher than the first pressure level, said high pressure part being coupled to the movable platen so as to be jointly movable along a movement path of the movable platen, said low pressure part being arranged on the machine bed or mounted adjacent to the injection moulding machine.17. The injection moulding machine of claim 16 , wherein the low pressure part includes pressure-generating and/or pressure-conducting means claim 16 , and the high pressure part includes pressure-generating and/or pressure-conducting means.18. The injection moulding machine of claim 16 , constructed in the form of a multi-component injection moulding machine.19. The injection moulding machine of claim 16 , constructed in the form of a two-plate ...

CARBON NANOTUBE BASED THERMAL GASKET FOR SPACE VEHICLES

A carbon nanotube-based thermal gasket for space vehicle applications, and process for making the same, is disclosed. A thermal gasket is created that includes one or more free-standing carbon nanotube (CNT) sheets formed of a CNT composition comprising randomly-oriented CNTs and a thermally-conductive resin material. The thermally-conductive resin material is encased within the one or more free-standing CNT sheets and prevented by the one or more CNT sheets from physical contact with an outer side of the thermal gasket. 1. A thermal gasket , comprising:one or more free-standing carbon nanotube (CNT) sheets formed of a CNT composition comprising randomly-oriented CNTs and having inner and outer sides; anda thermally-conductive resin material,wherein the thermally-conductive resin material is encased within the inner sides of the one or more free-standing CNT sheets and prevented by the one or more free-standing CNT sheets from physical contact with at least one outer side of the one or more free-standing CNT sheets.2. The thermal gasket of claim 1 , wherein the thermally-conductive resin material is a room temperature vulcanized (RTV) material.3. The thermal gasket of claim 1 , wherein the thermally-conductive resin material is a fluoropolymer-based resin.4. The thermal gasket of claim 3 , wherein the thermally-conductive resin material comprises multiple different component additives in a binding fluoropolymer claim 3 , a first component additive comprising respective elements of a different aspect ratio than elements of a second component additive.5. The thermal gasket of claim 3 , wherein the thermally-conductive resin material comprises two or more of chopped carbon fibers claim 3 , milled carbon fibers claim 3 , CNTs claim 3 , and nano-copper in a binding fluoropolymer.6. The thermal gasket of claim 5 , wherein the thermally-conductive resin material comprises the nano-copper in the binding fluoropolymer.7. The thermal gasket of claim 5 , wherein the thermally- ...

Installation and method for treating a plastic melt

An installation and a method for treating a plastic melt includes a reactor that has a reactor housing consisting of first and second reactor housing parts, a mixing element being arranged in the second reactor housing part and mounted thereupon so as to rotate about a rotational axis. The reactor, together with a discharge device and with at least one weighing device connected between these, is supported on a contact area.

Preparing and dispensing polymer materials and producing polymer articles therefrom

An example system is used to mix components and dispense a mixture for forming a thiol-ene polymer article. The system includes a first reservoir containing a first component of the thiol-ene polymer including a first polymerizable compound, and a second reservoir containing a second component of the thiol-ene polymer including a second polymerizable compound. The system also includes a mixing vessel having a mixing chamber, a delivery manifold providing a conduit for fluid from the first and second reservoirs to the mixing vessel, and a dispensing manifold providing a conduit for fluid from the mixing vessel. The system also includes a control module programmed to control the operation of the system.

Process for the production of water and solvent-free halobutyl rubbers

The present invention relates to water and solvent-free halogenated butyl rubber products as well as a process for the production thereof.

MIXING DEVICE WITH A PRESSURE HOLDING DEVICE

The invention relates to a mixing device comprising at least one supply opening for at least one liquid and comprising at least one additional supply opening for at least one liquid curing or crosslinking agent. The liquid and/or the liquid curing or crosslinking agent is/are mixed with a gas. The mixing device also comprises a discharge opening for discharging a mixture, which can be produced in the mixing device, of the at least one liquid and the at least one liquid curing or crosslinking agent. A pressure holding device is provided for holding a specifiable pressure which is higher than the pressure at which the gas in the mixing device is foamed. 11. A mixing device comprising at least one feed opening for at least one liquid and at least one further feed opening for at least one liquid curing or cross-linking agent , wherein the liquid and/or the liquid curing or cross-linking agent is or are mixed with a gas , and a discharge opening for discharge of a mixture which can be produced in the mixing device and comprises the at least one liquid and the at least one liquid curing or cross-linking agent , wherein there is provided a pressure holding device for holding a predeterminable pressure greater than that pressure at which foaming-out of the gas in the mixing device () occurs.2. The mixing device as set forth in claim 1 , wherein the pressure which can be predetermined by the pressure holding device is variable by means of an adjusting device claim 1 , preferably being adjustable in steps or steplessly.3. The mixing device as set forth in claim 1 , wherein the pressure holding device includes an aperture arranged in the region of the discharge opening or a fixed counteracting means limiting the accessible region of the discharge opening to a gap.4. The mixing device as set forth in wherein the pressure holding device includes an adjusting member which is arranged displaceably in the mixing device relative to the discharge opening and by which a gap remaining ...

Defoaming apparatus for high-viscosity pure-chitosan spinning solution

A degassing device for high-viscosity pure-chitosan spinning solutions having a reaction vessel and stirring device. A feed port and vacuum port are disposed at the upper part of the reaction vessel, an inner cylinder body is fixedly disposed in the center position of the reaction vessel which also has a discharge port, the upper cylinder opening of the inner cylinder body is closed and the lower cylinder opening is open, an umbrella-shaped dispersion plate is fixedly disposed at the periphery of the upper half part of the inner cylinder body, a gap is formed between the outer edge of the umbrella-shaped dispersion plate and the inner wall of the reaction vessel, and small liquid outlet holes are distributed on the part of the inner cylinder body above the umbrella-shaped dispersion plate. The stirring device has a stirring shaft with screw propeller and stirring power unit. The upper end of the stirring shaft is mounted to the stirring power unit, the stirring shaft passes through a mechanical sealing device and enters the reaction vessel with the lower end fixed on a seat-mounted bearing, the stirring shaft is superposed with the axial line of the inner cylinder body, and a gap is formed between the inner wall of the inner cylinder body and screw propeller.

Method for producing polymers in which fillers are incorporated and homogeneously distributed

For the production of polymers in which there are fillers with particle sizes below 10 μm incorporated and homogeneously distributed, a polymer starting material is input into a twin-screw extruder and is melted there to give a melt. In a conveying and mixing section, a suspension, which is formed of the fillers and of a carrier liquid, is injected into the melt. The melt viscosity is reduced by injection of the carrier liquid in the conveying and mixing section in that a cleavable polycondensate is used as polymer and low-molecular-weight cleavage product arising during the polycondensation is used as carrier liquid, and therefore the molten polymer is at least to some extent depolymerized within the conveying and mixing section. That the mixture, which is formed of the melt whose viscosity is reduced by cleavage, of the remainder of the carrier liquid and of the fillers, is homogenized.

Composite defoaming method for high-viscosity pure chitosan spinning solution

A combined degassing method for a high-viscosity pure-chitosan spinning solution, including: step 1, thoroughly dissolving the spinning solution in a dissolution vessel for subsequent use, the viscosity reaching 450,000-500,000 mpa·s; step 2, delivering the spinning solution in step 1 to the feed port of a degassing vessel from the dissolution vessel after filtration; step 3, in the degassing vessel, under the conditions of vacuumizing and maintaining the inner pressure of the degassing vessel to be 500-3,000 Pa, performing continuous treatment by a combined degassing process integrating separation, film-scraping, lifting and shear; and step 4, sampling at a sampling port for the detection of degassing degree, finishing the degassing operation if the detection result is eligible, otherwise repeating step (3) until the detection result is eligible. This method has high degassing efficiency and good degassing effect, and is applicable to spinning solutions of a wide range of viscosity.

Degradable polymer composition for use in downhole tools and method of manufacturing

A chemical composition for a degradable polymeric material includes an isocyanate terminated polyester prepolymer, including prepolymer units as a main chain with a plurality of isocynanates at ends of the main chain, and a cross-linking agent. The isocyanate terminated polyester prepolymer has a structural formula as follows:ONC—R″—NH—[—CO—R—R″′-]n-NH—R″—CNO,wherein R″′ is selected from a group consisting of —O— and —CO—O—R′—O—,wherein R, R′ and R″ are an aryl group or alkyl group and wherein n is a number of prepolymer units corresponding to length of the main chain. The composition degrades at a rate and at a delay depending on temperature and the composition for a component of a downhole tool. The composition has strength and elasticity for a component of a downhole tool.

METHOD OF PRODUCING CARBON FIBER-REINFORCED POLYARYLENE SULFIDE

A carbon fiber-reinforced polyarylene sulfide has both dynamic characteristics and molding cycle characteristics and can be produced with high productivity by preparing a polycarbodiimide-modified polyarylene sulfide using a polyarylene sulfide and a polycarbodiimide as raw materials, then melting the resulting polycarbodiimide-modified polyarylene sulfide, and combining the polycarbodiimide-modified polyarylene sulfide with carbon fibers at a specific ratio to produce a composite. 113-. (canceled)14. A method of producing a carbon fiber-reinforced polyarylene sulfide , comprising:(I-1) mixing 100 parts by mass of a polyarylene sulfide (A) and 0.1 to 10 parts by mass of a polycarbodiimide (B) having at least two carbodiimide groups in one molecule, and heating and melt-kneading the resulting mixture to prepare a melt-kneaded product;(II-1) heating the melt-kneaded product at a temperature equal to or higher than the glass transition temperature and equal to or lower than the melting point of the polyarylene sulfide (A) to accelerate reaction of the carbodiimide groups in the melt-kneaded product to prepare a polycarbodiimide-modified polyarylene sulfide (C-1); and(III-1) melting the polycarbodiimide-modified polyarylene sulfide (C-1), and combining the polycarbodiimide-modified polyarylene sulfide (C-1) with 10 to 300 parts by mass of carbon fibers (D) based on 100 parts by mass of the polyarylene sulfide (A) to prepare a composite.15. The method according to claim 14 , wherein the time required until the polyarylene sulfide (A) and the polycarbodiimide (B) are completely melted after heating of the mixture is started is t1 (seconds) and the time required until the melt-kneaded product is taken out after the polyarylene sulfide (A) and the polycarbodiimide (B) are completely melted is t2 (seconds) in step (I-1) claim 14 , the t1 is smaller than t2.16. A method of producing a carbon fiber-reinforced polyarylene sulfide claim 14 , comprising:(I-2) heating a ...

Saponified ethylene-vinyl ester copolymer composition, and production method therefor

An EVOH resin composition excellent in inorganic compound dispersibility and a method of producing an EVOH resin composition excellent in productivity and inorganic compound dispersibility are provided. The EVOH resin composition contains an EVOH resin (A) and an inorganic compound (B), and has a crystallinity of not lower than 36%. The EVOH resin composition is produced by: feeding an EVOH resin (A), an inorganic compound (B) and water (C) into a kneading apparatus including a screw-type side feeder ( 3 ); melt-kneading the resulting EVOH resin mixture while driving the screw-type side feeder ( 3 ); and expelling water vapor from the screw-type side feeder ( 3 ) to reduce the water content of the EVOH resin mixture to lower than 5 weight % while suppressing leakage of the EVOH resin kneaded body from the screw-type side feeder ( 3 ).

Apparatus and Method for Subsea Liquid Mixing and Sampling

A submersible mixing and sampling apparatus with submersible supply systems () for first and second liquid components such as a thermoset resin and a curing agent is disclosed. Each supply system has a respective submersible tank () for holding a respective one of the liquid components. Submersible mixers () downstream of the supply systems mix the liquid components underwater to form a curable mixture for injection into a subsea chamber such as a tee (). Submersible sampling devices downstream of the mixers take samples () of the mixture underwater before, during and after injection, and optionally also at the surface. The samples may be cured and tested underwater or may be lifted to the surface for testing. The apparatus may be mounted on a subsea skid () or basket. 1. A subsea-submersible mixing and sampling apparatus , comprising:submersible supply systems for first and second liquid components, each supply system comprising a respective submersible reservoir for holding a respective one of those liquid components, wherein the submersible reservoirs of the submersible supply systems are pressure-compensated or collapsible;at least one submersible mixer downstream of the supply systems for mixing the first and second liquid components to form a mixture for curing;at least one submersible sampling device downstream of the or each mixer for taking a sample of the mixture underwater; andat least one injection outlet downstream of at least one of the mixers for injecting the mixture into a subsea chamber to which the injection outlet may be connected in use, wherein the injection outlet and a sampling device are on parallel flowpaths downstream of said mixer.2. The apparatus of claim 1 , further comprising a sampling valve system downstream of said mixer claim 1 , which valve system is operable to direct the mixture selectively along either flowpath to the injection outlet or said sampling device.3. The apparatus of claim 1 , further comprising a bypass line ...

Infusion device and method for producing fiber-reinforced composite parts

The invention relates to a method for producing fiber-reinforced composite parts by means of vacuum infusion of a reactive resin mixture, characterized in that the steps of production of the reactive resin mixture and injection into the cavity are carried out in an infusion device in immediate temporal succession.

Method for removing moisture from polymer pellets for plastic injection and extrusion

The invention relates to a solution for reducing and removing moisture from plastic pellets by means of absorption and condensation, in which energy consumption is reduced and the process is simplified, making use of infrared wavelength efficiency, and comprising the following steps: 1. a supply phase using a dosing tank; 2. a distribution phase using a pellet levelling and dispensing device, a conveyor belt and a vibrating motor on the conveyor belt; 3. a moisture-removal phase using one or more infrared wave emitters disposed in parallel, a ventilated or cooled motor for a set of emitters, an air-recirculation passage for a set of emitters, an input temperature probe, an output temperature probe, and a moisture control probe; and 4. a discharge phase in which the material from which the moisture has been removed is discharged using a thermally-insulated collector tank.

PROCESS AND APPARATUS TO MAKE LIQUID SILICONE RUBBER COMPOSITIONS

Provided are an assembly and process for the continuous or semi-continuous preparation of addition-crosslinking liquid silicone rubbers and to liquid silicone rubber compositions made therefrom. Also disclosed are articles made from the liquid silicone rubber compositions. 1. A liquid silicone rubber composition manufacturing assembly , the manufacturing assembly sequentially comprising:(i) a preconditioning assembly for the preparation of a silicone rubber base material;(ii) a primary mass flow meter;(iii) an extruder device, having a first introduction port adapted for the introduction of silicone rubber base material generated in the preconditioning assembly (i), at least one additional introduction port, and an outlet;(iv) a packaging assembly; andadditionally comprising:(v) a control unit adapted to receive mass flow information on silicone rubber base material passing through the primary mass flow meter (ii) from the preconditioning assembly (i), to detect any variation from a predetermined mass flow range of values and to compute and control a compensating rate of introduction of the silicone rubber base material into the extruder device (iii) and/or compensating rate(s) of introduction of additional components through the at least one additional introduction port downstream of the first introduction port in the extruder device (iii).2. The manufacturing assembly of claim 1 , wherein the preconditioning assembly (i) is a compounder for making a silicone rubber base material.3. The manufacturing assembly of claim 1 , wherein the primary mass flow meter (ii) is based on a Coriolis principle.4. The manufacturing assembly of claim 1 , wherein the control unit (v) additionally monitors and identifies deviations outside pre-defined tolerances in relative quantities of ingredients and/or time periods when a composition exiting the extruder device (iii) does not meet a targeted product composition.5. The manufacturing assembly of claim 1 , wherein the control unit (v ...

Systems for manufacturing bulked continuous filament from recycled pet

A system for manufacturing bulked continuous carpet filament that is adapted for providing a polymer melt and dividing the polymer melt into a plurality of streams (e.g., at least six or eight streams) to increase a surface area of the polymer melt. The plurality of streams is then exposed to a pressure that is below approximately 5 millibars. The streams are then recombined into a single polymer stream and formed into bulked continuous carpet filament. In various embodiments, an extruder, such as a multi-screw extruder, is used to divide the polymer melt into the plurality of streams.

Apparatus and Process for De-Airing Material in an Extruder

An extruder for feeding material and for removing gas from the fed material. The extruder includes a vent block positioned between a first and second auger. The vent block including a vent cavity having a feed end and an exit end, an inner feed ring that partially extends into said vent cavity at the feed end of the vent cavity, and a screw element rotatably positioned in the vent cavity. A front portion of the outer ring is longitudinally aligned with or overlapping the front end of the inner feed ring. The outer ring forms at least one gap or opening at or adjacent the feed end of the vent cavity to enable a vacuum to be pulled on the vent cavity as material is moved though the vent cavity from the feed end to the exit end by the screw element.

Foamed polyester extrusion equipment which can be used in plants for producing sheets, boards or tubes of foamed polyester

Foamed polyester extrusion equipment has two co-rotating screws defining with an internal walls of an insulated frame, first degassing zone between a feeding zone at a feeding inlet for polyester and a first tight zone, a second degassing zone downstream of the first degassing zone, foaming agent inlet zone downstream of the second degassing zone and a pumping end zone for melted material downstream of the foaming agent zone. The first degassing zone carries out forced atmospheric degassing at lower temperature and has a first vent stack adjacent the first tight zone. The second degassing zone carries out vacuum degassing at a temperature equal to or greater than the melting point of the treated polyester material. The first degassing zone has, upstream of the first vent stack, a nozzle for inlet of preheated nitrogen gas to entrain vapours.

Mixing apparatus

The present invention relates to a mixing apparatus. A production unit produces a working fluid that is in a supercritical state or a subcritical state. A storage unit stores a material. A dissolving unit dissolves the material in the working fluid. A mixer mixes the material together in the presence of the working fluid. A material feed valve opens or closes a flow passage through which the material is to pass to be fed from the storage unit into the dissolving unit. A working fluid inflow valve opens or closes a flow passage through which the working fluid is to pass to flow into the dissolving unit from the production unit. A mixer inflow valve opens or closes a flow passage through which the working fluid and the material are to pass to flow into the mixer from the dissolving unit.

DEVICE AND METHOD FOR FOAMING A VISCOUS MATERIAL

The invention relates to a device () for foaming a viscous material (), said viscous material () being conveyed through a first conveyor pipe () using a first conveying means () at a first conveying pressure, and a gas () being conveyed through a second conveyor pipe () at a second conveying pressure, and the second conveyor pipe () and the first conveyor pipe () becoming conjoined at an opening (), and a discharge device () being provided downstream of the opening () so as to allow a pressure-relieving discharge of the mixture () made up of viscous material () and gas (), a gas injection valve () being arranged at the opening (), said gas injection valve () allowing to inject gas bubbles () into the viscous material (). 10119230202050407080805151715140207. A device ( , , ) for foaming a viscous material () , said viscous material () being conveyed through a first conveyor pipe () using a first conveying means () at a first conveying pressure , and a gas () being conveyed through a second conveyor pipe () at a second conveying pressure , and the second conveyor pipe () and the first conveyor pipe () becoming conjoined at an opening () , and a discharge device () being provided downstream of the opening () so as to allow a pressure-relieving discharge of the mixture () made up of viscous material () and gas () ,characterized in that{'b': 09', '15', '09', '25', '02, 'a gas injection valve () is arranged at the opening (), said gas injection valve () allowing to inject gas bubbles () into the viscous material ().'}2. The device according to claim 1 ,characterized in that{'b': 20', '15', '14', '02', '25, 'a statically or dynamically functioning mixing device () is arranged at the opening or downstream of the opening () in order to homogenize the mixture () made up of viscous material () and gas bubbles ().'}3. The device according to claim 1 ,characterized in that{'b': 04', '15', '50', '80', '05, 'the conveying means () allows to convey the viscous material to the ...

Method of Producing a Bioplastic Granulate Based on Sunflower Seed Shells/Sunflower Seed Hull Material on the One Hand and a Plastic Material on the Other Hand

A method of producing a bioplastic granulate on the basis of sunflower seed shells or sunflower seed hulls. In the method, ground sunflower seed shells/sunflower seed hull material is provided, wherein the particle size is in the region of 3 mm or less, preferably in the region of 0.01 to 1 mm, preferably in the region of 0.1 to 0.3 mm. A plastic material is provided, which is compounded with the sunflower seed shells/sunflower seed hull material, wherein the compounding operation is preferably effected in an extruder, preferably a double-screw extruder. The compounded material is chopped at the end of the extruder section with a tool with the addition of water, wherein the water is at a temperature of preferably more than 50° C., preferably about 80 to 90° C., to cool down the compound material. During the compounding operation, the compounding material is subjected to atmospheric degassing and/or vacuum degassing.

Pellet of liquid crystal polyester resin composition and method of producing pellet of liquid crystal polyester resin composition

The present invention relates to a pellet of a liquid crystal polyester resin composition, including a liquid crystal polyester resin (A) and an inorganic filler (B), in which the pellet has voids with a sphere equivalent diameter of 10 μm to 1000 μm, an abundance ratio of voids having a sphere equivalent diameter of less than 400 μm in a total amount of the voids is in a range of 40% to 90%, and an average number of the voids in one pellet having a length of 1 mm to 5 mm and a maximum diameter of 1 mm to 3 mm is in a range of 4 to 9.

Multi-screw kneader and method for producing nano-composite using said multi-screw kneader, and disk-shaped segment used for said kneader and said method

A multi-screw kneader that exhibits an extensional flow function before and behind small holes of a disk-shaped segment having the small holes and a method for producing a nano-composite using the multi-screw kneader and a disk-shaped segment to be used therein. The multi-screw kneader includes a plurality of kneading screws and a disk-shaped segment in a barrel. The disk-shaped segment partitions the inside of the barrel downstream a part for charging a kneading material and includes a plurality of shaft penetrating parts through which rotating shafts of the kneading screws rotatably pass and a large number of small holes punched in a periphery of these shaft penetrating parts and serving as flow channels of the kneading material. The nano-composite production includes charging nanoparticles as a resin additive using the multi-screw kneader. The disk-shaped segment includes the shaft penetrating parts and the large number of the small holes.

POLYESTER FIBER BLENDS AND METHODS OF MANUFACTURING SAME

This application is directed to polymer blends of polyethylene naphthalate, polytrimethylene terephthalate, and polyethylene naphthalate, for use in fibers, such as carpet fibers, and other applications. This application is also directed to methods of producing such polymer blends and fibers. 137-. (canceled)38. A carpet comprising at least pile yarns , a primary backing and an adhesive material;wherein said pile yarns are tufted through said primary backing and extend outwardly from one face of said primary backing, andwherein said adhesive material is applied at an opposite face of said primary backing with the back of the tufted pile yarns being sandwiched therein;wherein said pile yarns comprise fibers substantially made from a polymer blend comprising polyethylene terephthalate, polytrimethylene terephthalate and polyethylene napthalate; said pile yarns being dyed.39. The carpet of claim 38 , wherein said polymer blend comprises at least 1% by weight of polyethylene napthalate.40. The carpet of claim 39 , wherein said polymer blend comprises at least about 68% by weight of polyethylene terephthalate.41. The carpet of claim 38 , wherein said fibers are bulked continuous filaments.42. The carpet of claim 38 , wherein said fibers are staple fibers.43. The carpet of claim 38 , wherein said fibers are textured.44. The carpet of claim 38 , wherein said fibers have a round or trilobal shape.45. The carpet of claim 38 , wherein said fibers have a tenacity of 2.05 to 2.55 g/denier.46. The carpet of claim 38 , wherein said fibers have an elongation of between 35.12% and 39.93%.47. The carpet of claim 38 , wherein said yarn comprises 122 or more fibers. This application claims the benefit of U.S. Provisional Application No. 62/313,356, filed Mar. 25, 2016, which is hereby incorporated by reference in its entirety.The invention relates to polymeric fiber blends, and particularly polyester fiber blends comprising polyethylene terephthalate (PET), polytrimethylene ...

System and method for blending polymers

The present techniques provide an extruder screw comprising a high shear melting and mixing zone starting a distance away from an entry point of the screw corresponding to 35%-50% of the overall screw L/D. The extruder screw may also include elements capable of increasing a degree of fill of the high shear melting and mixing zone. In accordance with present techniques, the extruder screw is configured to blend two or more polyolefin polymers having greater than about a 200,000 difference in weight-average molecular weight in a single extrusion step. The extruder screw of the present techniques may be used in a single screw or twin screw extruder, and may be incorporated into a polyolefin production plant for producing multi-modal resins.

Polymer blend composition and preparing method of the same

본원은 고분자 블렌드 수지 조성물 및 이의 제조 방법에 관한 것이다 에 관한 것이다. The present invention relates to a polymer blend resin composition and a method for producing the same.

Method for the production of a conductive polymer composite material

The invention relates to a method for the production of an electrically conductive carbon-nanotube-polymer-composite material with reduced surface resistance, in which a carbon-nanotube-polymer-melt mixture is dispersed in a twin-screw extruder and is then extruded.

Process for producing a polypropylene composition, and polypropylene composition so produced

Process for producing a polypropylene composition using a compounding extruder, comprising a) a melting section (100) comprising a first elongated cylindrical tube having an end portion having a first inlet port (101), an end portion having a first outlet port (102), and a first screw, b) a mixing section (200) comprising a second elongated cylindrical tube having an end portion having a second inlet port (201), an end portion having a second outlet port (202), a side inlet port (204, 205, 206) between the second inlet port and the second outlet port, and a second screw, wherein the process comprises the steps of A) feeding the propylene-based polymer and the optional additives to the first inletand discharging the first melt composition from the first outlet, wherein the first screw is operated at a first screw speed, and B) feeding the first melt composition from the first outlet to the second inlet and feeding the further component to the side inlet and discharging the second melt composition from the second outlet, wherein the second screw is operated at a second screw speed smaller than the first screw speed.

Compounding extruder for producing polypropylene composition

Compounding extruder for producing a propylene-based polymer composition, comprising a) a melting section (100) comprising ai) a first elongated cylindrical tube having an end portion having a first inlet port (101) and an end portion having a first outlet port (102), and aii) a first screw arranged in the first elongated cylindrical tube and having a first length L1, a first outer screw diameter Do1 and a first inner screw diameter Di1, b) a mixing section (200) comprising bi) a second elongated cylindrical tube having an end portion having a second inlet port (201), an end portion having a second outlet port (202) and a side inlet port (204, 205, 206) between the second inlet port and the second outlet port, and bii) a second screw arranged in the second elongated cylindrical tube and having a second length L2, a second outer screw diameter Do2 and a second inner screw diameter Di2, wherein the first screw and the second screw are operable at different screw speeds, wherein Do1 is 0.82 to 1.2 x Do2.

Process for producing a polypropylene composition, and polypropylene composition so produced

Process for producing a polypropylene composition using a compounding extruder, comprising a) a melting section (100) comprising a first elongated cylindrical tube having an end portion having a first inlet port (101), an end portion having a first outlet port (102), and a first screw, b) a mixing section (200) comprising a second elongated cylindrical tube having an end portion having a second inlet port (201), an end portion having a second outlet port (202), a side inlet port (204, 205, 206) between the second inlet port and the second outlet port, and a second screw, wherein the process comprises the step of A) feeding the propylene-based polymer and the optional additives to the first inlet and discharging the first melt composition from the first outlet, wherein the first screw is operated at a first screw speed, and B) feeding the first melt composition from the first outlet to the second inlet and feeding the further component to the side inlet and discharging the second melt composition from the second outlet, wherein the second screw is operated at a second screw speed smaller than the first screw speed.

Process for the production of a moldable mass and its use for the production of low-emission floor coverings

The invention relates to a method for the production of mouldable masses, based on polyolefins with a density of <0.918 g/cm<3>, by means of at least two serial cross-linking reactions and the use of said masses for the production of low-emission floor coverings with excellent material properties.

Fluidized bed product discharge process

Method and apparatus for the post reaction treatment of resins produced by fluidized bed polymerization of alpha olefins wherein an extruder is coupled in communication with the reactor and all necessary devolatilization of monomer, deactivation of catalysts and addition of additives are performed in the extruder.

A vacuum devolatilizer

Provided is a vacuum devolatilizer for use in a polymer manufacturing or processing plant. The devolatilizer comprises a vacuum chamber having an inlet for a polymer melt, an outlet for a polymer melt, a vacuum port through which volatiles may be removed and a stirrer shaft port for the entry of a stirrer shaft. The stirrer shaft passes through the at least one stirrer shaft port and extends into the vacuum chamber and carries an agitation means. The stirrer shaft seal is associated with each stirrer shaft port for sealing against the stirrer shaft and each stirrer shaft seal has an external portion outside the vacuum chamber. The devolatilizer is provided with a motor located outside of the vacuum chamber for rotating shaft and comprises means for blanketing the external portion of the stirrer shaft seal with a low oxygen content gas or vapor, e.g., nitrogen, helium, steam, or carbon dioxide.

Apparatus for reaction including horizontal-type reactor and liquid circulator

An apparatus for reaction according to the present invention includes a horizontal-type reactor having first and second portions and a liquid circulator for circulatorily feeding a liquid from the first portion of the reactor, through the second portion of the reactor which is spaced apart from the first portion of the reactor in the direction of axis of the reactor. The reactor includes stirring blades on a stirring shaft whereby the liquid can be stirred in the rotational directions of the stirring blades of the horizontal-type reactor, while it is stirred in the axial direction thereof by the liquid circulator, thereby enabling the liquid to be stirred uniformly throughout the interior of the reacting apparatus without damaging surface renewal effects on a vapor-liquid interface.

Degassing during the extrusion of substances, preferably plastics

Die Erfindung betrifft eine Vergrößerung des Hohlraumvolumens an einem Planetwalzenextruderabschnitt/Modul zur Verbesserung der Voraussetzungen für eine Entgasung. The invention relates to an enlargement of the cavity volume at a planetary roller extruder section / module for improving the conditions for degassing.

Fluidized bed product discharge process

Method and apparatus for the post reaction treatment of resins produced by fluidized bed polymerization of alpha olefins wherein an extruder is coupled in communication with the reactor and all necessary devolatilization of monomer, deactivation of catalysts and addition of additives are performed in the extruder.

Process for the production of water and solvent-free halobutyl rubbers

본 발명은 무수 무용매 할로겐화 부틸 고무 생성물, 뿐만 아니라 그의 제조 방법에 관한 것이다. 방법은 a.) 1개 이상의 농축기 유닛에서 하나 이상의 할로겐화 부틸 고무 및 하나 이상의 휘발성 화합물을 함유하는 유체를 처리하는 단계, b.) 농축 유체를 재가열하는 단계, 및 c.) 재가열된 농축 유체를 1개 이상의 압출기로 공급하는 단계를 적어도 포함한다. The present invention relates to anhydrous, non-halogenated butyl rubber products, as well as processes for their preparation. The method comprising the steps of: a.) Treating a fluid containing at least one halogenated butyl rubber and at least one volatile compound in one or more concentrator units, b.) Reheating the enriched fluid, and c.) Reheating the reheated enriched fluid to 1 To at least one extruder.

Pavement material

The present invention is a recipe and method for combining Gilsonite and other asphaltites with curative elastomers that are powder granular form and which are added to asphalt. Second recipe and method is disclosed to create a dry liquid concentrate comprised of cured elastomers in combination with tall oil or other fatty acids and may also include Gilsonite to be added to asphalt.

Polymers with improved properties and process therefor

Modified polymers, praticularly polyolefins having improved flow and in some instances improved adhesion properties over that of a polymeric, e.g. polyolefin, base stock used as a starting material, are produced by a controlled reaction often involving degradation in an extruder, in which an initiator is injected under conditions of either maximum distribution or intensive mixing wherein appreciable rheological, i.e., molecular weight distribution, changes in said base polymer occur. In some embodiments monomers are also grafted to said base stock, during said degradation process. In such instances, exceptional, novel, grafted polymers with high melt flow properties and other useful properties are obtained.

A forming process

Fluidized bed product discharge process

Method and apparatus for the post reaction treatment of resins produced by fluidized bed polymerization of alpha olefins wherein an extruder is coupled in communication with the reactor and all necessary devolatilization of monomer, deactivation of catalysts and addition of additives are performed in the extruder.

Multiple-roll film reactor

Ultrapure polycarbonates having good natural colour and high thermal stability, apparatus and method for production thereof

FIELD: chemistry. SUBSTANCE: invention relates to an apparatus for separating an aromatic polycarbonate from a solution obtained via interphase synthesis, which comprises an extruder with a vent for released gases with at least three degassing zones and a carrier agent dispersion zone, wherein the apparatus further includes a descending tubular evaporator and a foam evaporator and said extruder and evaporators are arranged in the series: descending tubular evaporator - foam evaporator - extruder with a vent for released gases, and the carrier agent dispersion zone is located before each degassing zone. Also described is a method of separating an aromatic polycarbonate from a solution obtained via interphase synthesis. EFFECT: polycarbonates separated using said method, having extremely low residual content of volatile components and thermal decomposition products, as well as improved optical properties, particularly an optimum yellowness index and high thermal stability. 7 cl, 4 dwg, 6 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 566 822 C2 (51) МПК C08G 64/20 (2006.01) C08G 64/40 (2006.01) B29C 47/76 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011154113/04, 26.05.2010 (24) Дата начала отсчета срока действия патента: 26.05.2010 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.07.2013 Бюл. № 19 (45) Опубликовано: 27.10.2015 Бюл. № 30 (73) Патентообладатель(и): БАЙЕР МАТИРИАЛЬСАЙЕНС АГ (DE) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.12.2011 2 5 6 6 8 2 2 (56) Список документов, цитированных в отчете о поиске: US 6534619 A, 18.03.2003. WO 00/76657 A1, 21.12.2000. US 6811294 B1, 02.11.2004. RU 2238128 C2, 20.10.2004. EA 11129 B1, 30.12.2008. DE 19537113 C1, 13.03.1997. US 3410823 A1, 12.11.1968. US 20070025479 A1, 27.09.2007 R U 30.05.2009 EP 09007270.3 (72) Автор(ы): КЕНИГ Томас (DE), КИРХХОФФ Йорг (DE), БИРДЕЛЬ Михаэль (DE), КОЛЬГРЮБЕР Клеменс (DE ...

Apparatus, as well as method for processing polymer melt

FIELD: chemistry; physics. SUBSTANCE: invention relates to polymer melt processing plant. Technical result is achieved by installation for treatment of polymer melt with reactor, which includes reactor housing from first and second reactor housing parts, mixing element located in the second housing part of the reactor and installed with possibility of rotation in it around axis of rotation. Reactor together with unloading device with intermediate connection of at least one weight determination device rests on support surface. At that, in abutment to outlet hole of the second reactor body there is a discharge device for polymer melt, made in the form of a melt or extruder pump. At that, unloading device with intermediate connection of weight determination device rests on support surface. At that, unloading device is in drive connection with the second drive device, which is made with possibility to be actuated independently from the first drive device of mixing element. EFFECT: technical result is creation and maintenance of constant processing conditions in current processing process of polymer melt, and provision of uniform quality of processed polymer melt material. 51 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 696 456 C2 (51) МПК B29B 7/40 (2006.01) B29B 7/42 (2006.01) B29B 7/74 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B29B 7/40 (2019.05); B29B 7/42 (2019.05); B29B 7/74 (2019.05) (21)(22) Заявка: 2017134376, 23.03.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: 01.08.2019 23.03.2015 AT A 50232/2015; 23.03.2015 AT A 50233/2015 (43) Дата публикации заявки: 04.04.2019 Бюл. № 10 (45) Опубликовано: 01.08.2019 Бюл. № 22 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.10.2017 (56) Список документов, цитированных в отчете о поиске: WO 2014040099 A1, 20.03.2014. JP 2002254432 A, 11.09.2002. JP 2011131381 A, 07.07.2011. WO 2007131728 ...

Установка, а также способ для обработки полимерного расплава

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 134 376 A (51) МПК B29B 7/40 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017134376, 23.03.2016 (71) Заявитель(и): НЕКСТ ДЖЕНЕРЕЙШН РИСАЙКЛИНГМАШИНЕН ГМБХ (AT) Приоритет(ы): (30) Конвенционный приоритет: 23.03.2015 AT A 50232/2015; 23.03.2015 AT A 50233/2015 10 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.10.2017 AT 2016/050074 (23.03.2016) (87) Публикация заявки PCT: R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) УСТАНОВКА, А ТАКЖЕ СПОСОБ ДЛЯ ОБРАБОТКИ ПОЛИМЕРНОГО РАСПЛАВА (57) Формула изобретения 1. Установка (1) для обработки полимерного расплава, в частности, расплава поликонденсата, и настройки его характеристической вязкости, с реактором (2), который имеет корпус (3) реактора с, по меньшей мере, одной первой корпусной частью (4) реактора с верхней концевой областью (6) и нижней концевой областью (7) и проходящей между верхней и нижней концевой областью (6, 7) первой камерной частью (8), причем первая камерная часть (8) имеет вертикальную протяженность в высоту, и корпус (3) реактора в области нижней концевой области (7) упомянутой, по меньшей мере, первой корпусной части (4) имеет непосредственно примыкающую к ней, по меньшей мере, вторую корпусную часть (5) реактора со второй камерной частью (9), причем упомянутые обе камерные части (8, 9) находятся в соединении по потоку друг с другом и выполнены уплотненно относительно наружной окружающей среды, и в области верхней концевой области (6) первой корпусной части (4) реактора у, по меньшей мере, одного впускного отверстия, по меньшей мере, один подводящий трубопровод (10) для полимерного расплава оканчивается в первой корпусной части (4) реактора, а во второй корпусной части (5) реактора расположено, по меньшей мере, одно выпускное отверстие (11) для полимерного расплава, и с, по меньшей мере, одним, ...

一种用于化妆品包装软管生产的负压自动混料装置

本发明公开的一种用于化妆品包装软管生产的负压自动混料装置，包括混料加工箱，所述混料加工箱的下表面固定安装有箱体底座，所述箱体底座的下表面固定安装有电机安装架，所述电机安装架的下表面固定安装有转动电机，所述电机安装架的下表面位于转动电机的外侧位置固定安装有支撑脚架。本发明所述的一种用于化妆品包装软管生产的负压自动混料装置，能够通过旋转投入盒将添加剂进行投入，将添加剂通过排出开孔排入至装置内与材料混合，为搅拌时添加剂的加入带来了便利，能够使送料搅拌片跟随搅拌叶片进行同时旋转，从而更全面的对材料进行搅动，防止部分材料无法进行搅拌，使材料更均衡的进行搅拌，提高混料的质量。

Apparatus and method for processing plastic melts

본 발명은 제1 및 제2 반응기 하우징 부분(4, 5)으로 구성된 반응기 하우징(3)을 구비한 반응기(2)를 포함하는 플라스틱 용융물을 처리하기 위한 장치(1) 및 방법에 관한 것이며, 혼합 요소(12)가 제2 반응기 하우징 부분(5)에 배열되고 회전축(13)을 중심으로 회전하도록 장치되며, 상기 반응기는 배출 장치(19) 및 이들 사이에 연결된 적어도 하나의 중량 측정 장치와 함께 접촉 구역에 지지된다. The present invention relates to an apparatus (1) and method for processing a plastics melt comprising a reactor (2) having a reactor housing (3) consisting of first and second reactor housing parts (4, 5), mixing An element (12) is arranged in the second reactor housing part (5) and is arranged to rotate about an axis of rotation (13), said reactor being in contact with a discharging device (19) and at least one gravimetric device connected therebetween supported in the area.

Filled resins and method for making filled resins

충전 수지의 제조 방법은 작용화된 입자를 제공하는 단계; 및 진공 혼련기(vacuum kneader) 내에서, 작용화된 입자를 유기 매트릭스와 조합하고 균질하게 혼합하여, 작용화된 입자가 충전 수지의 적어도 약 20 중량%를 차지하도록 충전 수지를 제공하는 단계를 포함한다. 작용화된 입자를 제공하는 단계는 또한 (i) 미처리된 입자, (ii) 상기 입자와 반응하는 표면 처리제, 및 (iii) 용매의 공급 재료를 제공하는 단계와; 상기 입자를 표면 처리제와 반응시키기에 충분한 온도로 유지된 연속 반응기를 통해 공급 재료를 안내하여 약 4시간 이내에 작용화된 입자를 제공하는 단계와; 작용화된 입자를 연속 반응기로부터 직접 진공 혼련기 내로 안내하는 단계를 포함할 수 있다. 다른 태양에서, 최종 수지(finished resin)는 유기 매트릭스 내에 적어도 약 20 중량%의 작용화된 입자를 포함한다. A method of making a filled resin includes providing functionalized particles; And in a vacuum kneader, combining the functionalized particles with the organic matrix and homogeneously mixing to provide a filled resin such that the functionalized particles comprise at least about 20% by weight of the fill resin do. The step of providing functionalized particles may also include the steps of (i) untreated particles, (ii) a surface treatment agent that reacts with the particles, and (iii) a supply of solvent; Guiding the feedstock through a continuous reactor maintained at a temperature sufficient to react the particles with the surface treatment agent to provide the functionalized particles within about 4 hours; And directing the functionalized particles directly from the continuous reactor into a vacuum kneader. In another embodiment, the finished resin comprises at least about 20 weight percent functionalized particles in the organic matrix.

MIXING DEVICE AND METHOD

Low cost polyester process using a pipe reactor

柔性纤维的真空辅助共挤出和所生产的可模制热塑性复合材料

描述了一种复合材料和一种用于通过将木材或木浆纤维与合适的热塑性聚合物和偶联剂结合来生产所述复合材料的方法。生产了呈粒料、薄膜或三维可模制产品形式的均匀、无空隙的透明/半透明热塑性材料。所述木浆纤维可以是离散的天然纤维，以及纳米至微米元件的柔性组件，例如聚集的碳纳米管的组件。还有可能使用真空辅助共挤出工艺来生产混合复合材料，所述混合复合材料包含所述木浆纤维和另外的刚性纤维，如玻璃纤维或碳纤维；以及柔性纤维或纤维网络，如纤维素纤维或纤维素长丝。热塑性树脂可以是但不限于，聚烯烃，如聚丙烯或聚乙烯；或聚酯，如聚乳酸；或共聚物，如丙烯腈‑丁二烯‑苯乙烯三元共聚物。

水溶性可生物降解材料及其制备方法以及膜制品

一种水溶性可生物降解材料，其中，该材料是由一种混合物经熔融而形成的产物，所述混合物含有淀粉、多元醇和含水的聚乙烯醇，所述聚乙烯醇为亲水性聚乙烯醇，以混合物的总重量为基准，所述多元醇的含量为19-40重量％。由于本发明提供的可生物降解材料是由一种混合物经熔融而形成的产物，材料的熔融温度为140-190℃，分解温度为250-400℃，熔融温度远低于分解温度，因而可以达到熔融态。本发明提供的可生物降解材料可以通过吹塑成型得到膜制品，制得的膜制品可以溶于水中并且可以完全生物降解。而且在高淀粉含量的情况下得到的膜制品的拉伸断裂强度高达65兆帕、断裂延伸率为398％。

制造卤化橡胶状聚合物的方法

本发明涉及一种制造卤化橡胶状聚合物的新方法，包括不饱和橡胶状聚合物与卤化剂进行反应，其特征在于，卤化反应是在螺旋和螺杆挤出反应器封闭的干燥系统中加入控制量的原料和添加剂，连续、顺序地经塑化、脱气、软化、多级卤化、稳定、脱挥、出料切块步序使过程不产生含酸、盐的废水和废气，所制造的卤化橡胶状聚合物产品卤素含量可控制，且不含腐蚀性酸气，是新一代制造卤化橡胶状聚合物的新方法，可取代目前卤化丁基橡胶及乙丙橡胶等的生产装置及方法。

METHOD AND DEVICE FOR PRODUCING A POLYMER FROM THERMOPLASTIC POLYCONDENSATE

水溶性可生物降解材料及其制备方法以及膜制品

一种水溶性可生物降解材料，其中，该材料是由一种混合物经熔融而形成的产物，所述混合物含有淀粉、多元醇和含水的聚乙烯醇，所述聚乙烯醇为亲水性聚乙烯醇，以混合物的总重量为基准，所述多元醇的含量为19－40重量％。由于本发明提供的可生物降解材料是由一种混合物经熔融而形成的产物，材料的熔融温度为140－190℃，分解温度为250－400℃，熔融温度远低于分解温度，因而可以达到熔融态。本发明提供的可生物降解材料可以通过吹塑成型得到膜制品，制得的膜制品可以溶于水中并且可以完全生物降解。而且在高淀粉含量的情况下得到的膜制品的拉伸断裂强度高达65兆帕、断裂延伸率为398％。

用于从彩色的回收pet制造膨化连续细丝的方法

制造膨化连续地毯细丝的方法，其在各种实施例中包括：(A)将回收的PET瓶研磨成一组薄片；(B)清洗薄片；(C)从这组薄片中识别并去除杂质，包括不纯的薄片；(D)对薄片添加一种或多种色母料；(E)在将MRS挤出机(400)的MRS部分(420)内的压力保持在大约25毫巴以下的同时，使这组薄片通过MRS挤出机(400)；(F)使得到的聚合物熔体通过具有小于大约50微米的微米级的至少一个过滤器(450)；以及(G)使回收的聚合物形成为基本上由回收的PET构成的膨化连续地毯细丝。

Process for manufacturing an adhesive by means of extrusion

The present invention relates to a process for manufacturing an adhesive by extrusion, wherein the adhesive comprises at least one degraded polypropylene (co)polymer and at least one additional additive.

生产低乙醛含量的聚酯制品的方法

公开了从聚酯中除去乙醛的方法，该方法包括以下步骤：a)将熔融聚酯输送至具有聚合物压缩区的有排气口的、连续的螺杆式输送机中，b)输送机的螺杆旋转以在短于15分钟的时间和在低于300℃的温度下对熔融聚合物实施压缩并输送通过挤出机，c)与步骤b)同时，让吹扫剂流入挤出机和然后流出从而除去挥发性杂质并避免相当大的乙醛积累，和d)将脱除了挥发分的聚合物像体输送至成型装置中，在其中成型制品。

使用管式反应器的低成本聚酯工艺

本发明涉及聚酯方法，它在酯化，缩聚，或酯化和缩聚方法两者中采用管式反应器。本发明的管式反应器方法与现有技术的方法相比有多个优点，其中包括改进的传热，体积控制，搅拌和分离功能。本发明的管式反应器工艺和装置可用比普通聚酯工艺低得多的费用来建造和进行操作。

聚丙烯粉料后处理方法

聚丙烯粉料后处理方法，属于石油化工领域。对现有的聚丙烯后处理工艺“离开聚合系统经初步气/固分离的聚丙烯粉料或者进入干燥器，通过蒸汽非直接加热和通入氮气，脱除粉料中烃类，再进入汽蒸器通入氮气和水蒸气使催化剂失活；或者进入脱气仓，在脱气仓中通入含有水蒸气的氮气”进行改进：干燥器中不通入氮气，而是通入水蒸气，将干燥器改造为回收烃类并使催化剂去活的汽蒸干燥器，脱除烃类之后的聚合物进入汽蒸器(或者脱气仓、下同)，在汽蒸器中加入不含水蒸气的氮气，将汽蒸器改造为脱除粉料中水蒸气的脱湿器。本发明能够以一种经济的方法彻底回收离开聚合系统的烃类，降低单耗、能耗，彻底解决环保方面的问题。

Vacuum Devolatilizer

Provided is a vacuum devolatilizer for use in a polymer manufacturing or processing plant. The devolatilizer comprises a vacuum chamber having an inlet for a polymer melt, an outlet for a polymer melt, a vacuum port through which volatiles may be removed and a stirrer shaft port for the entry of a stirrer shaft. The stirrer shaft passes through the at least one stirrer shaft port and extends into the vacuum chamber and carries an agitation means. The stirrer shaft seal is associated with each stirrer shaft port for sealing against the stirrer shaft and each stirrer shaft seal has an external portion outside the vacuum chamber. The devolatilizer is provided with a motor located outside of the vacuum chamber for rotating shaft and comprises means for blanketing the external portion of the stirrer shaft seal with a low oxygen content gas or vapor, e.g., nitrogen, helium, steam, or carbon dioxide.

Method of producing high-strength composite material based on a thermoplastic polymer, a modifier for preparing a composite material and a method of producing a modifier for preparing composite material (versions)

FIELD: manufacturing technology. SUBSTANCE: invention relates to production of a modifier for preparing composite materials based on thermoplastic polymers containing carbon, glass or basalt fibers and carbon nanotubes (versions), as well as to methods of obtaining it, and to obtain a composite material containing the obtained modifier. In one version, the modifier is obtained by mixing thermoplastic polymer (7–15 wt%) with solvent (70–94 wt%) and alkali metal salts (3–15 wt%) until complete dissolution of the polymer. Further, nanotubes are added into the mixture in amount of up to 5 wt%. Coagulant is added to the produced dispersion while stirring. Dispersion is filtered, the precipitate is washed and dried. According to other versions, a modifier for a polyamide-based composite is prepared. Nanotubes are mixed with caprolactam. Dispersion is heated, possibly treated with ultrasound, a caprolactam polymerization catalyst, a polymerization activator, heating and drying are added. To produce composite material thermoplastic material is mixed with fibers and modifier containing carbon nanotubes in amount of 5 to 33 wt%. EFFECT: invention solves problem of creation of high-strength composite material. 44 cl, 1 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 708 583 C1 (51) МПК C08J 3/00 (2006.01) C08J 3/20 (2006.01) C08J 5/00 (2006.01) C08J 5/04 (2006.01) B82Y 30/00 (2011.01) C08L 101/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА C08L 77/00 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C08L 23/04 (2006.01) C08L 69/00 (2006.01) (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B82Y 30/00 (2019.08); C08L 101/00 (2019.08); C08J 3/00 (2019.08); C08K 3/04 (2019.08) (21)(22) Заявка: 2019111174, 12.04.2019 12.04.2019 Дата регистрации: 09.12.2019 (73) Патентообладатель(и): МСД Текнолоджис С.а.р.л. (LU) (45) Опубликовано: 09.12.2019 Бюл. № 34 2 7 0 8 5 8 3 R U (56) Список документов, цитированных в отчете о поиске: Synergistic effects of carbon nanotubes on the mechanical properties of basalt ...

Patent RU2017134376A3

7 ВУ” 2017134376” АЗ Дата публикации: 11.06.2019 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017134376/05(060529) 23.03.2016 РСТ/АТ2016/050074 23.03.2016 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. А 50232/2015 23.03.2015 АТ 2. А 50233/2015 23.03.2015 АТ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) УСТАНОВКА, А ТАКЖЕ СПОСОБ ДЛЯ ОБРАБОТКИ ПОЛИМЕРНОГО РАСПЛАВА Заявитель: НЕКСТ ДЖЕНЕРЕЙШН РИСАЙКЛИНГМАШИНЕН ГМБХ, АТ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. п см. Примечания [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) В29В 7/40 (2006.01) В29В 7/42 (2006.01) В29В 7/74 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) В29В7/00 - В29В7/94 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): РЕРАТБпе, ЕАРАТТУ, Езрасепе, Соозе, бооЗе Раеп($, ]-Р]а Рас РАТЕМТЫСОРЕ, Раеагсй, КОРТО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- ...

System and method for blending polymers

The present techniques provide an extruder screw comprising a high shear melting and mixing zone starting a distance away from an entry point of the screw corresponding to 35%-50% of the overall screw L/D. The extruder screw may also include elements capable of increasing a degree of fill of the high shear melting and mixing zone. In accordance with present techniques, the extruder screw is configured to blend two or more polyolefin polymers having greater than about a 200,000 difference in weight-average molecular weight in a single extrusion step. The extruder screw of the present techniques may be used in a single screw or twin screw extruder, and may be incorporated into a polyolefin production plant for producing multi-modal resins.

Continuous processing of powder coating compositions

Systems, apparatus combinations and methods for producing a coating powder are provided wherein a stream of a powder coating precursor including at least one resin and at least one additional powder coating ingredient is contacted with a process fluid effective to reduce the viscosity of the powder coating precursor to allow processing of the powder coating precursor at a lower temperature.

Supercritical fluids as diluents in liquid spray applications of adhesives

The present invention relates to precursor adhesive coating compositions which optionally contain water, which are particularly suitable for being admixed with at least one supercritical fluid used as a viscosity reduction diluent and then spraying this resultant liquid mixture of supercritical fluid and precursor adhesive coating composition onto a substrate to be coated. Processes for spraying these precursor adhesive coating compositions are also disclosed.

Method of and apparatus for controlling the viscosity of molten plastics material which is to be moulded

A plastics extruder in operative association with a control arrangement is disclosed. The plastics extruder includes a screw extruder, a screen downstream of the screw extruder, a throttle located between the screw extruder and the screen, a moulding tool downstream of the screen, and a melt index measuring device. The measuring device includes a metering pump whose rotational speed is controllable and which is provided with a rotational speed indicator, a measuring nozzle disposed in a sample flow channel, and pressure and temperature sensors connected to the sample flow channel directly upstream of the inlet of the measuring nozzle. The sample flow channel is adapted to be located downstream of the screen pack and upstream of the moulding tool. For the purpose of regulating the viscosity of the plastics material melted in the screw extruder, the throttle cross-section is variable by a servomotor connected to the output of a programmable two-coordinate controller. The characteristic of the controller provides a desired value output and can be predetermined as a temperature-pressure characteristic when the metering pump is operated with constant delivery, or as a temperature-delivery characteristic when the metering pump is operated with a constant pressure drop via the measuring nozzle while the temperature sensor is connected to one of two actual value inputs of the two coordinate controller. Either the pressure sensor or the rotational speed indicator is connected to the second actual value input.

Method and extrusion apparatus for degassing thermoplastic plastics material melts

A method of degassing thermoplastic plastic melts over a wide range of viscosities in a degassing extruder including a plurality of sequential degassing sections. Each degassing section includes at least one screw section having flights formed thereon. Each section includes a degassing region and a metering section downstream thereof. The height and length with which the flights are filled in the degassing regions in the individual degassing sections is controlled by the comparison of a pressure gradient measured in the metering region of that section with a desired pressure gradient and on the basis of this, the melt is conveyed with substantially the same throughput capacity in each degassing section. As a result of these measures, the degassing is effected in all of the degassing sections with optimally partially filled screw threads and with an optimum filling length of the worm threads, which is independent of the viscosity of the melt. The number of flights, the depth and width of the flights and the pitch of the flights may be identical in all degassing sections thus simplifying the manufacture of the screw.

Thermoplastic resin film and method for producing the same

The present invention provides a thermoplastic resin film which has uniform optical properties and can be used for a high quality functional film and a method for producing the same to suppress uneven thickness in the machine direction of a film and streaks in the film. The method for producing a cellulose acylate film ( 12 ), includes the steps of melting a thermoplastic resin in a single screw extruder ( 22 ), discharging and feeding the molten resin to a die ( 24 ) through the extruder ( 22 ), extruding the molten resin from the die ( 24 ) in the form of a sheet, and solidifying the molten resin by cooling, wherein the extruder has a feed section (A), a compression section (B) and a metering section (C) and transport efficiency ηF of the thermoplastic resin in the feed section (A) is 0.2 to 0.7.

聚1-丁烯弹性体材料的制备方法

一种聚1-丁烯弹性体材料及其制备方法。该弹性体材料为以mmmm％(核磁共振法测定)表示的全同结构含量为55～70％，结晶度为10～25％，具有典型热塑性弹性体性质的1-丁烯均聚物；或1-丁烯与其它α-烯烃共聚所得的饱和弹性体；或1-丁烯与其它非共轭二烯烃共聚所得的不饱和弹性体。其制备方法之一是采用本体反应挤出聚合工艺，由预聚合、螺杆反应挤出聚合和双螺杆脱挥并挤出造粒三步组成；制备方法之二是采用传统的溶液或本体聚合以搅拌釜聚合工艺合成。聚合过程采用负载钛催化剂与有机铝化合物组成的催化体系，在0～100℃温度下分段进行。醚类、酯类和硅烷类给电子试剂可作为调节聚合物规整度的试剂。氢气是聚合物的分子量调节剂。这种弹性体材料性质上分别类似于POE、EPR和EPDM，可应用于相似的领域。

Patent JPH024339B2

Method for producing composite material based on polymer and carbon nanotube, composite material produced by this method and use thereof

Method and apparatus for foaming high viscosity polymer materials

Polymer materials having viscosities ranging from about 50,000 up to above 1,000,000 centipoises are mixed with a gaseous foaming agent to provide a polymer/gas solution under pressure such that when the polymer/gas solution is subsequently dispensed at atmospheric pressure the gas is released from the solution and becomes entrapped in the polymeric material to form a homogeneous polymer foam. Mixing is accomplished by force feeding the gas and polymeric material into and through a low energy input disk mixer with a low pressure drop across the mixer such that premature foaming or reaction of the polymeric material is avoided. The disk mixer includes a tubular housing, one or more driven shafts extending along the length of the housing, and a series of disks spaced along the shafts. The foaming gas enters into solution in the polymer in the compartments between the rotating disks. The process is characterized in that relatively high viscosity polymeric materials are mixed with gas and foamed with relatively low horsepower requirements, high throughput and low temperature rise of the polymer from conversion of the work of mixing to heat.

Supercritical fluids as diluents in liquid spray applications of adhesives

The present invention relates to precursor adhesive coating compositions which optionally contain water, which are particularly suitable for being admixed with at least one supercritical fluid used as a viscosity reduction diluent and then spraying this resultant liquid mixture of supercritical fluid and precursor adhesive coating composition onto a substrate to be coated. Processes for spraying these precursor adhesive coating compositions are also disclosed.

Method and apparatus for forming and dispersing single and multiple phase coating material containing fluid diluent

A method and apparatus for forming and dispensing a coating material formulation or solution containing a liquid coating composition and a fluid diluent such as a supercritical fluid comprises a supply for the liquid coating composition, a supply for the fluid diluent, a mixer for combining the two components to form the coating material solution or formulation, and a control system for monitoring a parameter of the formulation which can be correlated to the fluid diluent content and/or liquid coating composition content of the formulation, and for monitoring the pressure of the formulation at selected locations within the system. The control system is effective to open or close the supply of fluid diluent and/or liquid coating composition in accordance with variations in the formulation parameter which is being sensed, and in response to pressure changes within the system, to maintain single or multiple phase coating material formulations, to account for changes in a parameter of the liquid coating composition and to ensure that the desired ratio of fluid diluent to liquid coating composition is maintained in the formulation which is supplied to coating dispensers for deposition onto a substrate.

Redistributed polycarbonate resin

The application relates to methods for producing a polycarbonate resin having a narrowed molecular weight distribution, specifically, the application relates to the use of a redistribution catalyst and a feedback loop control mechanism to prepare narrow molecular weight distribution resin.

Method for machining products to be degassed

Nach der Erfindung werden Planetwalzenextruder, inbesondere zur Entgasung, auch zur Trocknung, mit Planetwalzenspindeln (21,22,23,60) versehen, die ganz oder teilweise einen reduzierten Zahnbesatz aufweisen. According to the invention, planetary roller extruders, in particular for degassing, also for drying, are provided with planetary roller spindles (21, 22, 23, 60) which have wholly or partially reduced tooth stocking.

Device and method for the preparation of recyclable thermoplastic plastic material

재활용될 열가소성 플라스틱 물질의 제조를 위한 장치가 하나는 다른 하나를 후속하는 두 처리 단계(67, 68)를 가진다. 배출될 수 있고 두 번째 단계(68)의 수취 용기(2)에 평행하게 부착되어 있는 둘 이상의 수취 용기(1, 1')는 첫 번째 단계(67)에 존재한다. 장치(70)는 존재하며 이에 의해 첫 번째 단계의 수취 용기(1, 1')로부터 두 번째 단계의 수취 용기(2)의 교호 배치식 채움이 발생된다. 상기 장치(70)은 채널(3) 속으로 인도하는 선행 단계(67)의 수취 용기(1, 1')의 방출부재(75)를 제어한다. 차단부재(71)은 상기 채널에서 선행 단계(67)의 각 수취 용기(1, 1')를 위해 제공된다. 마지막 단계의 수취 용기(2)의 교호 배치식 채움을 위한 장치(70)는 상기 차단부재(71)을 제어한다. An apparatus for the production of thermoplastic material to be recycled has two treatment steps 67 and 68, one following the other. At least two receiving vessels 1, 1 ′ which can be discharged and are attached in parallel to the receiving vessel 2 of the second stage 68 are present in the first stage 67. Apparatus 70 is present whereby alternating filling of the receiving vessel 2 of the second stage from the receiving vessel 1, 1 ′ of the first stage occurs. The device 70 controls the discharge member 75 of the receiving vessel 1, 1 ′ of the preceding step 67 leading into the channel 3. A blocking member 71 is provided for each receiving container 1, 1 ′ of the preceding step 67 in the channel. The device 70 for alternating filling of the receiving container 2 in the last stage controls the blocking member 71. 이 형태의 장치에 의해 재활용될 열가소성 플라스틱 물질을 제조하는 방법은 마지막 단계의 수취 용기(2)가 교호적 및 가능한한 연속적으로 선행 단계(67)의 수취 용기(1, 1')로부터 채워지는 것을 제공한다. The process for producing the thermoplastic material to be recycled by this type of device is such that the receiving container 2 of the last step is filled from the receiving container 1, 1 ′ of the preceding step 67 alternately and as continuously as possible. to provide.

Method and the device for production of the ester monomer and the method and the device for production of the polyester

FIELD: chemical industry; methods and devices for production of the ester monomers and the polyesters. SUBSTANCE: the invention is pertaining to the field of chemical industry, in particular, to the methods and devices of production of the polyesters. The method of production of the polyester using the etherification of the reactants selected from dibasic acid or the source of the dibasic acid, and the diol or the source of the diol include: (a) provision of one or several etherification tubular reactors having the first inlet and the first outlet, (b) introduction of the reactants into the etherification tubular reactor in the conditions of the etherification reaction near to the first inlet and formation of the two-phase flow, so that the reactants form the liquid phase and the vapor phase through the etherification tubular reactor. At that the etherification tubular reactor is made with the capability of operation at least in one of the operational modes chosen from the group consisting of the bubble flow, the plug flow, the laminar flow, the stratified flow, the slow flow, the dispersive flow and the foamy flow. At that at least a part of the reactants forms the eater monomer. The method of production of the polyester using the etherification of the reactants chosen from the dibasic acid or the source of the dibasic acid and the diol or the source of the diol includes: (a) provision one or several etherification tubular reactors, having the first inlet and first outlet; (b) introduction of the reactants in the conditions of the reaction of etherification in the etherification tubular reactor near to the first inlet and formation of the two-phase flow so, that the reactants form the liquid phase and the vapor phase through the etherification tubular reactor. At that the etherification tubular reactor is made with the capability to operate at least in one of the modes chosen from the group, consisting of the bubble flow, the plug flow, the laminar flow, the ...

Biodegradable polymer-based biocomposites with tailored properties and method of making those.

Un compuesto biodegradable que incluye: (a)una matriz polimérica que tiene un polímero biodegradable; (B) un relleno; y (c) un compatibilizador injertado con anhídrido. El material compuesto también puede incluir (d) aditivos poliméricos tales como extensores de cadena poliméricos o plastificantes. Un método in situ para fabricar el material compuesto biodegradable de la presente invención, que incluye las etapas de: (a) fundir uno o más polímeros biodegradables en presencia de un monómero funcional y un iniciador de radicales libres para formar una mezcla; y (b) añadir una carga y aditivos de polímeros a la mezcla fabricando de este modo el compuesto biodegradable. Un método de fabricación de un polímero biodegradable que incluye (a) sintetizar un compatibilizador mediante (i) fusión mezcla de un iniciador de radicales libres y un monómero funcional, (ii) fusión de uno o más polímeros biodegradables para formar un fundido y (iii) combinación del producto de la etapa (i) y la fusión de la etapa (ii) sintet6izando de este modo el compatibilizador; y (b) mezclar el compatibilizador de la etapa (a) con una matriz de uno o más polímeros biodegradables y una carga y aditivos de polímero, fabricando de este modo el compuesto biodegradable o compostable.

Polymers with improved properties and process therefor

Modified polymers, particularly polyolefins having improved flow and in some instances improved adhesion properties over that of a polymeric, e.g. polyolefin, base stock used as a starting material, are produced by a controlled reaction often involving degradation in an extruder, in which an initiator is injected under conditions of either maximum distribution or intensive mixing wherein appreciable rheological, i.e. molecular weight distribution, changes in said base polymer occur. In some embodiments monomers are also grafted to said base stock, during said degradation process. In such instances, exceptional, novel, grafted polymers with high melt flow properties and other useful properties are obtained.

用于处理塑料熔体的设备以及方法

本发明涉及一种用于处理塑料熔体的设备和方法，所述设备具有反应器(2)，所述反应器包括反应器壳体(3)，所述反应器壳体包括第一和第二反应器壳体部分(4、5)；混合元件(12)设置在第二反应器壳体部分(5)中并且绕旋转轴线(13)可转动地支承在该第二反应器壳体部分上；所述反应器连同卸料装置(19)在中间连接至少一个重量测定装置(21)的情况下支撑在安放面上。

METHOD FOR PRODUCING HALOBUTIL RUBBERS NOT CONTAINING WATER AND SOLVENT

1. Способ удаления летучих соединений из жидкости (F), содержащей по меньшей мере один галогенированный бутиловый каучук и по меньшей мере одно летучее соединение, который предусматривает по меньшей мере следующие стадии:a) обработки жидкости (F) по меньшей мере в одной концентрирующей установке, содержащей по меньшей мере нагреватель (2), сосуд для дегазации (4) и испарительный трубопровод (4.1), при этом жидкость (F) нагревают, нагретую жидкость (G) подают в сосуд для дегазации (4), где часть летучих соединений удаляют через испарительный трубопровод (4.1) с получением концентрированной жидкости (Н),b) повторного нагревания концентрированной жидкости (Н) из стадии а) по меньшей мере в одной установке для повторного нагревания (6) с получением повторно нагретой концентрированной жидкости (L);c) подачи повторно нагретой концентрированной жидкости (L) из стадии b) по меньшей мере в один экструдерный узел, содержащий по меньшей мере секцию дегазации экструдера, содержащую по меньшей мере транспортирующую секцию (16), вентиляционное отверстие (15) с одним или более испарительными трубопроводами (15.1), накопительную секцию (20) и выпускную секцию (22), при этом летучие соединения удаляют через вентиляционные отверстия (15) и испарительные трубопроводы (15.1);при этом продукт (Р), полученный в выпускной секции (22), по существу не содержит летучих соединений.2. Способ по п.1, отличающийся тем, что повторно нагретая концентрированная жидкость (L) является свободнотекучей.3. Способ по п.1, отличающийся тем, что галогенированный бутиловый каучук представляет собой бромбутиловый каучук.4. Способ по п.1, отличающийся тем, что жидкость (F) содержит от 3 до 50%ма� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2012 144 960 A (51) МПК C08F 6/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012144960/04, 23.03.2011 (71) Заявитель(и): ЛАНКСЕСС ИНТЕРНАСЬОНАЛЬ СА (CH) Приоритет(ы): (30) Конвенционный приоритет: 24.03.2010 EP ...

Method and apparatus to achieve formulation and reactive polymerization utilizing a thermally and atomspherically controlled feeding system for thermoplastic materials

본 발명은 기계화 및 자동화 공급 시스템이 압출, 펠렛화, 열 가공, 건조 및 형성된 중합체 펠렛의 후-가공을 포함하는 펠렛화 공정으로의 열 및 공기 컨디셔닝된 성분의 정확한 인도를 제공하는 연속 공정에 관한 것이다. 성분들은 조합되어 용액, 분산액, 유화액, 제형물 등을 형성할 수 있다. 상기 성분들은 추가로 반응하고 열 개질되어 올리고머, 예비중합체, 중합체, 공중합체 및 이들의 다양한 조합을 형성할 수 있다.

Вспененная клейкая лента для наклеивания на неполярные поверхности

1. Клейкая лента с материалом носителя из вспененного слоя на акрилатной основе, на который нанесен по меньшей мере один слой контактного клеевого материала, причем контактный клеевой материал(а) состоит из смеси по меньшей мере двух различных синтетических каучуков, в частности, на основе винилароматических блок-сополимеров,(b) содержит смолу, которая нерастворима в образующих вспененный слой акрилатах, и(с) является химически несшитым.2. Клейкая лента по п.1,отличающаяся тем, чтовспененный слой является вязкоупругим вспененным слоем.3. Клейкая лента по п.1, отличающаяся тем, что образующий вспененный слой акрилат представляет собой полиакрилат, полученный свободной или контролируемой радикальной полимеризацией одного или нескольких акрилатов и алкилакрилатов.4. Клейкая лента по п.1 или 2,отличающаяся тем, чтообразующий вспененный слой акрилат представляет собой термически сшитый полиакрилат.5. Клейкая лента по одному из пп.1-3,отличающаяся тем, чтообразующий вспененный слой акрилат представляет собой поли(мет)акрилат, включающий(а4) от 70 до 100% по весу сложного эфира акриловой кислоты и/или сложного эфира метакриловой кислоты, и/или их свободных кислот, со следующей структурной формулойпричем радикал Rпредставляет Н или СН, и радикал Rпредставляет Н или алкильные цепи с 1-14 атомами углерода;(а5) от 0 до 30% по весу мономера с олефиновой ненасыщенностью, имеющего функциональные группы, и(а6) необязательно, дополнительные акрилаты, и/или метакрилаты, и/или мономеры с олефиновой ненасыщенностью (предпочтительно с содержанием между 0 и 5% по весу), которые могут быть сополимеризованы с компонентами (а1), и имеют функциональ� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК C09J 7/02 (11) (13) 2013 134 327 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013134327/05, 22.07.2013 (71) Заявитель(и): ТЕЗА СЕ (DE) Приоритет(ы): (30) Конвенционный приоритет: 23.07.2012 DE 102012212883.2 Адрес для переписки: 129090, Москва ...

Vacuum extrusion molding method and apparatus

loaded resins and method for the production of loaded resins

Process for producing polymer films from aqueous polymer compositions

The present invention relates to a process for producing a polymer film from an aqueous polymer composition wherein the process comprises the steps of: (A) introducing an aqueous composition comprising water and a polymer through at least one feed unit in one or more upstream sections of an extruder comprising a plurality of interconnecting sections wherein at least one downstream section comprises a homogenizer mixer; (B) conveying the composition through the extruder; (C) maintaining the composition at a temperature of from about 60° C. to about 160° C. as it is conveyed through the extruder; (D) reducing the pressure in at least one section of the extruder downstream of the feed units sufficiently to evaporate at least a portion of the water in the composition conveyed through that section; (E) removing the evaporated water from the extruder through at least one vent in a downstream section to form a water-reduced composition; and (F) extruding the water-reduced composition through a die thereby to produce a film. In other embodiments, the invention relates to a process for producing sheets of a pressure-sensitive adhesive composition and to a process for coating a composition such as a pressure-sensitive adhesive composition onto a support web. In each of the embodiments of the invention, a film, sheet or coating composition is formed from an aqueous composition containing large amounts of water, and the product obtained is essentially water-free.

Process for manufacturing an adhesive by means of extrusion

The present invention relates to a process for manufacturing an adhesive by extrusion, wherein the adhesive comprises at least one degraded polypropylene(co)polymer and at least one additional additive.

THERMAL CRYSTALLIZATION OF A MELTED COMPOSITE POLYESTER POLYMER IN A LIQUID

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2004 129 634 (13) A (51) ÌÏÊ C08G 63/90 (2006.01) C08J 3/12 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2004129634/04, 08.10.2004 (71) Çà âèòåëü(è): ÈÑÒÌÀÍ ÊÅÌÈÊÀË ÊÎÌÏÀÍÈ (US) (30) Ïðèîðèòåò: 10.10.2003 US 10/683,522 (43) Äàòà ïóáëèêàöèè çà âêè: 20.03.2006 Áþë. ¹ 8 (54) ÒÅÐÌÈ×ÅÑÊÀß ÊÐÈÑÒÀËËÈÇÀÖÈß ÐÀÑÏËÀÂËÅÍÍÎÃÎ ÑËÎÆÍÎÏÎËÈÝÔÈÐÍÎÃÎ R U (57) Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá êðèñòàëëèçàöèè ñëîæíîïîëèýôèðíîãî ïîëèìåðà, âêëþ÷àþùèé ââåäåíèå ðàñïëàâëåííîãî ñëîæíîïîëèýôèðíîãî ïîëèìåðà â æèäêóþ ñðåäó ïðè òåìïåðàòóðå æèäêîé ñðåäû âûøå Tg ñëîæíîïîëèýôèðíîãî ïîëèìåðà. 2. Ñïîñîá ïî ï.1, â êîòîðîì òåìïåðàòóðà æèäêîé ñðåäû âë åòñ âûøå 100°C. 3. Ñïîñîá ïî ï.2, â êîòîðîì òåìïåðàòóðà æèäêîé ñðåäû âë åòñ âûøå 130°C. 4. Ñïîñîá ïî ï.3, â êîòîðîì òåìïåðàòóðà æèäêîé ñðåäû íàõîäèòñ â èíòåðâàëå îò 140 äî 180°C. 5. Ñïîñîá ïî ï.1, â êîòîðîì ñëîæíîïîëèýôèðíûé ïîëèìåð ñîäåðæèò, ïî êðàéíåé ìåðå, 60 ìîë.% ýòèëåíîâûõ çâåíüåâ ïî îòíîøåíèþ ê ìîë ì âñåõ ââåäåííûõ äèîëîâ è, ïî êðàéíåé ìåðå, 60 ìîë.% òåðåôòàëàòíûõ çâåíüåâ èëè íàôòàëàòíûõ çâåíüåâ ïî îòíîøåíèþ ê ìîë ì âñåõ ââåäåííûõ äèêàðáîíîâûõ êèñëîò, è Õ ðàñïëàâëåííîãî ïîëèìåðà ñîñòàâë åò, ïî êðàéíåé ìåðå, 0,55 äë/ã. 6. Ñïîñîá ïî ï.1, â êîòîðîì ñëîæíîïîëèýôèðíûé ïîëèìåð ñîäåðæèò ïîëèàëêèëåíòåðåôòàëàòíûé ãîìîïîëèìåð èëè ñîïîëèìåð, ìîäèôèöèðîâàííûé 40% èëè ìåíåå ïîâòîð þùèõñ çâåíüåâ, èíûõ, ÷åì àëêèëåíòåðåôòàëàò. 7. Ñïîñîá ïî ï.1, â êîòîðîì ðàñïëàâëåííûé ñëîæíîïîëèýôèðíûé ïîëèìåð ïîëó÷àþò ñïîñîáîì ïîëèêîíäåíñàöèè â ðàñïëàâíîé ôàçå è ââîä ò â æèäêóþ ñðåäó èç ðàñïëàâíîé ôàçû ïðåæäå, ÷åì òåìïåðàòóðà ðàñïëàâëåííîãî ñëîæíîïîëèýôèðíîãî ïîëèìåðà ïàäàåò äî òåìïåðàòóðû íèæå åãî òåìïåðàòóðû ñòåêëîâàíè (Tg), è õàðàêòåðèñòè÷åñêà â çêîñòü Õ ðàñïëàâëåííîãî ïîëèìåðà ñîñòàâë åò, ïî êðàéíåé ìåðå, 0,55 äë/ã. 8. Ñïîñîá ïî ï.1, â êîòîðîì ðàñïëàâëåííûé ñëîæíîïîëèýôèðíûé ïîëèìåð ïîëó÷àþò íàãðåâàíèåì òâåðäûõ ñëîæíîïîëèýôèðíûõ ãðàíóë âûøå 190°C ñ ...

Degassing method, degassing device and use of screw elements

본 발명은 중합체-함유 매질, 예컨대 특히 중합체 용융물, 중합체 용액 및 중합체 분산물의 탈기 방법 및 또한 상기 방법을 실시하기 위한 탈기 장치에 관한 것이다. The present invention relates to a method of degassing a polymer-containing medium, such as in particular a polymer melt, a polymer solution and a polymer dispersion, and also to a degasser for carrying out the process.