СПОСОБ ВЫДЕЛЕНИЯ КАУЧУКА ИЗ РАСТЕНИЙ, НЕ ЯВЛЯЮЩИХСЯ ГЕВЕЯМИ

FIELD: chemistry. SUBSTANCE: method involves the use of briquettes from compressed, crushed plant material of 1.5" or less, containing bagasse, rubber, residual water and not more than 5 wt % of the leaves. The density of briquettes is 40-325% higher than the density of unpressed vegetable material. A purified, hard rubber is obtained which contains 0.05-0.5 wt % of impurities, 0.2-1.5 wt % of ash and 0.1-4.0 wt % of the resin if it is dried to such a state that it contains 0.8 wt % of volatile substances. EFFECT: method makes it possible to improve the isolation of rubber from a plant that is not hevea. 6 cl, 10 tbl, 9 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 630 489 C2 (51) МПК C08C 1/04 (2006.01) C08C 1/14 (2006.01) C08C 3/02 (2006.01) C08C 4/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2014140181, 06.03.2013 (24) Дата начала отсчета срока действия патента: 06.03.2013 Дата регистрации: (73) Патентообладатель(и): БРИДЖСТОУН КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: US 4526959 A1, 02.07.1985. US 4616075 A, 07.10.1986. US 4804741 A1, 14.02.1989. US 4988388 A, 29.01.1991. EA 2011170418 A1, 20.12.2011. SU 15590 A1, 30.06.1930. (43) Дата публикации заявки: 27.04.2016 Бюл. № 12 2 6 3 0 4 8 9 06.03.2012 US 61/607,448; 06.03.2012 US 61/607,460; 06.03.2012 US 61/607,469; 06.03.2012 US 61/607,475; 06.03.2012 US 61/607,483; 18.06.2012 US 61/660,991; 18.06.2012 US 61/661,064; 18.06.2012 US 61/661,052 R U 11.09.2017 (72) Автор(ы): ХУАНГ Ини (US), СМЕЙЛ Марк (US), УАЙТ Роберт (US), МОРИ Хироси (US), КОУЛ Вильям (US) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 06.10.2014 C 2 C 2 (45) Опубликовано: 11.09.2017 Бюл. № 26 (86) Заявка PCT: R U 2 6 3 0 4 8 9 US 2013/029451 (06.03.2013) (87) Публикация заявки PCT: WO 2013/134430 (12.09.2013) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" ( ...

СОСТАВ ДЛЯ ПОКРЫТИЯ ЧАСТИЦ КАУЧУКА, СПОСОБ ИЗГОТОВЛЕНИЯ КРОШАЩИХСЯ КИП ИЗ КАУЧУКА

Использование: переработка полимеров, в составах для покрытия частиц каучука и способах изготовления крошащихся кип из каучука. Техническая сущность: приготавливают состав для покрытия частиц каучука. Состав содержит минеральное обволакивающее вещество, целлюлозное связующее-загуститель, воду и водорастворимый анионный диспергатор. Смешивают 0,1 - 0,5 мас.ч. загустителя, 0,25 - 0,5 мас. ч. диспергатора на 100 мас. ч. обволакивающего вещества. Обрабатывают частицы каучука составом в количестве 0,2 - 0,5 мас. ч. на 100 мас. ч. каучука. Используют влажный каучук. Удаляют влагу из каучука пропусканием его через обезвоживающей экструдер до получения экструдата каучука с влажностью 3 - 7 %. Разрезают на гранулы, наносят покрытие на гранулы на выходе из экструдера. Высушивают с помощью воздуха в сушилке. Прессуют до получения кип каучука. Характеристика крошащихся кип из каучука с покрытием частиц: сохраняют способность крошиться в течение более 6 месяцев их хранения. 2 с. и 13 з.п., 4 ил., 7 ...

СПОСОБ УПРАВЛЕНИЯ ПРОЦЕССОМ СУШКИ БУТИЛКАУЧУКА

Изобретение относится к химической промышленности, а именно к способу управления процессом сушки бутилкаучука. Способ заключается в подаче влажной крошки бутилкаучука в экспеллер, подаче осушающего агента в экспандер, перемешивании в экспандере, осуществлении процесса дросселирования, получении осушенной крошки каучука, при этом подают в экспандер предварительно осушенную в экспеллере крошку, осуществляют разделение потока крошки каучука после экспеллера на два потока, в соотношении 9:1, подают один поток в количестве 90% от общего непосредственно на вход экспандера, второй поток в количестве 10% от общего орошают на транспортере водным раствором осушающего агента, в качестве которого используют гидрокарбонат аммония (порофор), синтезируемый смешением раздельных потоков аммиака, углекислого газа и воды при температуре от 0°С до +5°С в колонне с насадкой. Охлаждают в холодильном контуре раствор осушающего агента гидрокарбоната аммония до температуры -3÷0°С, используемого в орошении второго ...

СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРНЫХ КОМПОЗИТОВ С ТЕРМОПЛАСТИЧНЫМИ СВОЙСТВАМИ

... 1. Способ получения композитного материала, включающий следующие стадии ! (а) коагулирование одной или более водных дисперсий полимера для получения коагулированной полимерной дисперсии со средневзвешенным размером частиц, составляющим от примерно 1 до примерно 1000 мкм; ! (б) соединение частиц одного или более сшитых каучуков с трехмерной структурой с коагулированной водной полимерной дисперсией с образованием смеси водных дисперсий в водной дисперсии; ! (в) твердофазное измельчение нарезкой водной дисперсионной смеси; и ! (г) снижение содержания влаги в смеси. ! 2. Способ по п.1, дополнительно включающий замешивание смеси перед формованием изделия. ! 3. Способ по п.1, в котором коагулирование одной или более водных полимерных дисперсий проводят в присутствии частиц одного или более сшитого каучука с трехмерной структурой с образованием смеси в водной дисперсии. ! 4. Способ по п.1, в котором ситовый размер частиц сшитого каучука с трехмерной структурой составляет 150 мкм (80 меш) или более ...

СПОСОБЫ ПОВЫШЕНИЯ СОДЕРЖАНИЯ ЭКСТРАГИРУЕМОГО КАУЧУКА В МАТЕРИАЛЕ РАСТЕНИЯ, НЕ ЯВЛЯЮЩЕГОСЯ ГЕВЕЕЙ

... 1. Способ повышения содержания экстрагируемого каучука в материале растения, не являющегося гевеей, без чрезмерного повышения содержания экстрагируемой смолы, включающий:использование некоторого количества измельченного материала растения, не являющегося гевеей, со средней длиной от ½″ до 4″ и максимальным содержанием влаги приблизительно 15 масс.% и обработку измельченного материала растения, не являющегося гевеей, по меньшей мере одним из:обработки в молотковой мельнице с использованием калибра сита меньше ½″; иобработки в валковой мельнице с рифлеными валками, имеющими не более 12 рифлений на дюйм,в результате чего получают некоторое количество перемолотого материала растения, не являющегося гевеей, с максимальным содержанием влаги приблизительно 15 масс.%, содержание экстрагируемого каучука в котором по меньшей мере на 30% выше, чем в измельченном материале растения, не являющегося гевеей, перед перемолкой.2. Способ по п. 1, в котором материал растения, не являющегося гевеей, содержит ...

Способ обработки каучуковой крошки

Использование: производство модифицированных синтетических полипропиленовых каучуков. Каучуки используются для получения резинотехнических изделий. Сущность изобретения: полиизопреновую крошку хлорируют в водной среде. В качестве водной среды используют водный раствор хлористого натрия, электрохимически обработанный в анодной камере диафрагме иного электролизера до содержания активного хлора 30 0-1000 мг/л. 4 табл.

Способ регулирования процесса обезвоживания бутадиен-нитрильных и бутадиен-стирольных каучуков

Изобретение относится к процессу обезвоживания бутадиен-нитрильных и бутадиен-стирольных каучуков. Снижение гелеобразования и улучшение физико-механических свойств вулкани- затов достигается дробной подачей антиоксиданта: 80-90% его подают в латекс пропорционально его расходу с учетом конструкции, а оставшиеся 10-20% - непосредственно в ганековьй сушильный агрегат. Количество антиоксиданта , подаваемого в шнек, корректируют по изменению температуры головки экспандера, при еличении температуры количество антиоксиданта увеличивают, при уменьшении температуры уменьшают. 2 табл., 3 ил. Q (Л со о п& ел со ...

Способ управления процессом сушки ленты каучука

Verfahren und Vorrichtung zum Entfernen von gasförmigen nichtpolymerisierten Monomeren aus Olefinpolymeren

Improvements in the manufacture of raw natural rubber

A method of softening natural rubber consists of disintegrating coagulum into granules or crumbs, treating where necessary with a complexing agent to remove harmful metals such as copper and manganese, and spraying with a solution or a water or oil dispersion of a peptizing agent and then drying at a temperature high enough to activate the peptizing agent. In a modification the peptizing agent may be added direct to the coagulum, as a dispersion in oil or as a rubber/oil/peptizing agent master-batch, during the preparation of crepe. In the latter case the agent is preferably added to the scrap washer or on the first roll of the crepeing battery. Specifications 531,723 and 964,562 are referred to.

Improvements in or relating to treatment of polymerised chloroprene

... 520,745. Purifying polymerized chloroprene. B. B. CHEMICAL CO., Ltd., PUDDEFOOT, L. E., and WILSON, J. W., (Representative of WILSON, J. A.). Oct. 31, 1938, No. 31386. ]Class 2 (iii)] Polymerized chloroprene is freed from malodorant material by dissolving in a solvent such as benzene or toluene and then adding a solvent such as alcohol or acetone which dissolves the malodorant material but not the polymer. The process may be effected in a Werner or Pfliederer type mixer and several alcohol treatments may be given. If the mass becomes too stiff, the subsequent washing may be with alcohol containing some benzene. Specifications 387,363 and 468,435 are referred to.

An Improved Process for Purifying Raw Inferior or Scrap Rubbers.

... 111,907. Ransford, R. B., (Ilcken C. A., and Down, St. V. B.). Dec. 14, 1916. India-rubber, purifying.-Coagulated rubbers, e.g., commercial raw rubber, inferior or dirty, or imperfectly cured rubbers, or scrap rubbers in any form are purified by soaking, preferably for 24 hours or more, in a solution of a salt or salts from which SO2 is liberated or can be liberated by the addition of an acid, but not such salts as also liberate sulphur. Examples of such salts are bisulphates, hydrosulphites, and sulphites. The treated rubber may subsequently be treated with a mixture of methylated spirit and benzine as de. scribed in Specification 8487/15.

Process and apparatus for the preparation of rubber compositions

... 1,037,125. Drying rubber compositions. FARBENFABRIKEN BAYER A.G. Feb. 27, 1964 [March 16, 1963], No. 8246/64. Heading F4G. In apparatus for drying water-containing rubber compositions, the material is extruded through the nozzle plate 4 of a worm press at high temperature into a tubular expansion chamber 5 together with air which may be heated from an annular nozzle 6 about the nozzle 4, at a temperature and pressure such that the steam produced after extrusion remains superheated, and passing from the chamber 5 which has a diameter at most twice the diameter of the extruder nozzle via a conveyer pipe 7 to a cyclone separator 8.

Method for removing chlorinated solvents from chlorinated polymers

Method for removing chlorinated solvents from chlorinated polymers which retain them as a result of a chlorination process, wherein after being dried and pulverized, said chlorinated polymer is treated with a non-halogenated aliphatic organic solvent or a halogenated aromatic organic solvent. Said organic solvent pertains to the following groups: alcohols such as methanol, ethanol, isopropanol; esters such as methyl formate, ethyl formate, methyl acetate; nitriles such as acetonitrile; aromatic halides such as chlorobenzene; hydrocarbons such as n-hexane; and acetone.

Method of preparation of solid natural rubbers of lower quality.

CONNECTIONS TO THE USE IN THE ANALYSIS OF CELLULOSI SUBSTRATES

PROCEDURE AND COMPOSITION FOR THE PRODUCTION OF BRITTLE INDIA RUBBER BUNDLES.

Pharmaceutical metered dose inhaler and methods relating thereto

REMOVING VOLATILES FROM AN ELASTOMER

PROCESS FOR PURIFYING A RUBBER

Verfahren zur Herstellung eines linearen Hochpolymers von Butadien

РЕЗИНОВАЯ СМЕСЬ ДЛЯ ШУМОПОГЛОЩАЮЩЕГО МАТЕРИАЛА

Резиновая смесь для шумопоглощающего материала содержит хлоропреновый каучук, оксид цинка, оксид магния, наполнитель, стеариновую кислоту, низкомолекулярный полиэтилен, индустриальное масло, глицерин и порообразователь. Как наполнитель она содержит технический углерод и мел в соотношении 1:2, а как порообразователь азодикарбонамид.

Method of extracting raw rubber

A method for extracting rubber from latex of plants other than the trees and lianas said to rubber

PROCESS FOR PRODUCTION OF LIQUID CHLOROPRENE POLYMER

The method for producing pure rubber with substances containing same

Proceeded to deodorize the haloprenes polymerize and produced while resulting

Purification process by osmosis regenerated rubbers and other soluble materials in the hydrocarbons

Improvements brought to the processes for the manufacture of rubber

METHOD FOR DECONTAMINATING NATURAL RUBBER BY HIGH-PRESSURE FILTRATION OF A WET COAGULUM OF NATURAL RUBBER

The present invention relates to a method for decontaminating natural rubber by filtering a wet coagulum of natural rubber. The method comprises passing a natural rubber coagulum having a water content greater than 10% through a filter, the pressure at the inlet of the filter being greater than 100 bar.

Apparatus for eliminating residual solvent from crumbled polymer

The apparatus proposed herein relates to mass-exchange apparatus for isolating polymers from hydrocarbon solutions. The apparatus comprises a vertical column provided with a device for producing polymer crumb and an aqueous suspension, a device for feeding live steam, and contact trays which divide the column into compartments as for height. The device for producing polymer crumb and aqueous suspension is accommodated in the top portion of the vertical column and is essentially a chamber established on at least one side by the overflow baffle. The chamber accommodates the water supply nozzle and a conventional injector-type polymer crumb former. Such an arrangement of the device for polymer crumb formation and producing aqueous suspension results in a simplified construction of the entire apparatus and diminished overall dimensions thereof, as well as to a simpler attendance of the apparatus.

PROCESSES FOR RECOVERING RUBBER FROM AGED BRIQUETTES AND AGED BRIQUETTES CONTAINING PLANT MATTER FROM NON-HEVEA PLANTS

Provided herein are organic solvent-based processes for the removal of rubber from aged briquettes made from compressed guayule plant matter (briquettes). Also provided are aged briquettes made from the compressed guayule plant matter where the briquettes have been aged for either various time period after formation and the rubber within the briquette has retained its a molecular weight to within a specified range.

СПОСОБ ВЫДЕЛЕНИЯ СИНТЕТИЧЕСКИХ КАУЧУКОВ ИЗ ЛАТЕКСОВ

Использование: изобретение относится к способам выделения синтетических каучуков из латексов, включая очистку сточных вод, и может быть использовано в химической и нефтехимической промышленности. Сущность изобретения: целью изобретения является снижение затрат электроэнергии на сжижение хладагента, используемого при коагуляции латекса вымораживанием, исключение потребления свежей умягченной воды и теплоагента на оттаивание коагулюма с серумом, снижение потерь мелкой крошки каучука, утилизация основных и побочных продуктов очистки серумсодержащей воды, предотвращение ущерба окружающей среде. Поставленная цель достигается тем, что вводится дополнительная стадия вымораживания при давлении больше атмосферного при заданной скорости от дисперсии коагулюма в гидроциклоне. Оттаивание коагулюма с серумом осуществляют теплотой паров дегазации крошки каучука от остаточных мономеров. Проводят концентрирование мелкой крошки каучука в серумсодержащей воде самоочищающимся фильтром известной конструкции ...

СПОСОБ ВЫДЕЛЕНИЯ СИНТЕТИЧЕСКИХ КАУЧУКОВ ИЗ ЛАТЕКСОВ

... 1. Способ выделения синтетических каучуков из латексов включающий коагуляцию латекса вымораживанием в среде хладагента под вакуумом, оттаивание коагулюма с последующей водной дегазацией незаполимеризовавшихся мономеров из крошки каучука и его обезвоживанием, отличающийся тем, что отвод теплоты от замораживаемого латекса осуществляют низкокипящим мономером сначала при давлении больше атмосферного и скорости падения температуры латекса 10 - 30 град\ч. 2. Способ по п. 1 , отличающийся тем, что отделение паров кипящего мономера от эмульсии латекса при давлении больше атмосферного проводят за счет центробежных сил в гидроциклоне. 3. Способ по п. 1 отличающийся тем, что разделение замороженных частиц коагулюма от хладагента осуществляют в шнековом транспортере, установленном под углом в 30o к горизонту, и нижний конец шнека выше уровня хладагента в коагуляторе, а на выходе из шнека установлен гидрозатвор-сепаратор. 4. Способ по п. 1 отличающийся тем, что оттаивание замороженного коагулюма осуществляют ...

Способ сушки эмульсионных каучуков

Изобретение относится к сушке каучуков. Цель изобретения - повышение однородности каучука и предотвращение образования структурированного полимера при сохранении пластозласти- ческих свойств - достигается за счет подачи 2-20 кг инертного газа в зону введения каучука в шнековую машину, дросселирования каучука в форкамеру, в которую подают 10-200 кг на 1 т каучука янертного газа, нагретого до 100-135°С. 5 табл.

Verfahren zum Entfernen fluessiger Polymerisate aus kautschukartigen Kunstmassen

Verfahren zur Erhoehung des normalen Schmelz- oder Erweichungsintervalls von Guttapercha, Balata oder diese Stoffe enthaltenden Mischungen

Verfahren zur Verbesserung der Eigenschaften von Rohkautschuk

A method of cleaning or purifying a polymer

Improved Process for Obtaining Pure Caoutchouc, Gutta, Balata and the like.

... 22,606. Scholz, V. Oct. 4. Right to Patent relinquished. India-rubber &c., purifying.-Aniline, phenol, their homologues or alkylized substitution products, amyl acetate or acetic ester, or mixtures of them, are employed to dissolve the " degen- " erate " &c. from low-grade materials for the preparation of pure caoutchouc, gutta-percha, balata, &c. The " degenerate " may be precipitated from the solution by alcohol, acetone, &c.

Improvements in and relating to the Treatment of Caoutchouc, Gutta Percha and like Substances.

... 17,582. Feval, L., and La Fresnaye, J. de. July 31. India-rubber &c., extracting resins from.- Resin is extracted from caoutchouc, guttapercha, and the like by means of castor oil, with or without other resin solvents. The residue of caoutchouc &c. is pressed, and may be treated with alcohol, acetone, &c. to dissolve adhering oil or other impurities. In an example, equal parts of Jelutong and castor oil are heated to, say, 140-150‹ C. in an open or closed apparatus. When all water has been evaporated, the extraction is complete. The floating caoutchouc &c. is pressed or otherwise dried, and the last traces of oil &c. are removed by alcohol &c.

Improvement in the processing of high cis-1,4 butadiene-1,3-polymers

A high molecular weight rubbery homopolymer of butadiene-1.3 having at least 80% of its monomer units joined in the cis-1.4 configuration is heated with two or more parts of a C12- 18 acrylic carboxylic acid per 100 parts of the polymer at 200 to 400 DEG F. There may also be present per 100 parts of polybutadiene, two or more parts of a non-heat-reactive phenol-formaldehyde resin, a para-tertiary-butyl phenol-acetylene resin or a disproportionated, hydrogenated or esterified abietic acid resin or 5 or more parts of a solid polybutene polymer, a liquid or solid copolymer of butadiene with acrylonitrile, a solid rubbery copolymer of butadiene with styrene extended with an extender oil, a liquid butadiene polymer, a hydroxylated liquid butadiene polymer, a xylyl mercaptans or blends of two or more or blends of one or more with 2 or more parts of pine tar. Specified carboxylic acids are lauric, oleic and stearic acids and they are preferably used in amounts from 2 to 15 parts per 100 rubber ...

Transporting

PROCEDURE AND DEVICE FOR REMOVING FROM GASEOUS NICHTPOLYMERISIERTEN MONOMERS FROM OLEFINPOLYMEREN

Procedure and device for the refinement of products of india rubber.

Methods for increasing the extractable rubber content of non-Hevea plant matter

Provided herein are methods for increasing the extractable rubber content of non-Hevea plant matter. The methods comprise the use of particular forms of hammer milling and/or roller milling and result in an increase in the amount of rubber that can be extracted from the resulting plant matter such as by organic solvent extraction or aqueous extraction.

ELASTOMER EXTRUSION DRYING WITH GAS INJECTION

Extrusion drying of wet rubber crumb particles in the last phase of the overall elastomer drying process is improved through use of gas injected into the compression zone of an extruder thereby providing an improved effeciency in the explosion drying process. Rubber particles having a very low moisture content, such as less than 0.2% by weight, frequently less than 0.1%, are produced.

PHARMACEUTICAL METERED DOSE INHALER AND METHODS RELATING THERETO

Methods of preparing elastomeric gasket materials for use in metered dose inhalers that include contacting an elastomeric gasket material to be used in a metered dose inhaler, which gasket material comprises one or more extractable compounds, with a solution comprising an organic solvent under conditions sufficient to extract at least a portion of at least one of the one or more extractable compounds from the elastomeric gasket material are described. Sealing gaskets made by such methods as well as metering valves, metered dose inhalers, and drug products that include such gaskets are also described.

PROCESS AND APPARATUS FOR REMOVING UNPOLYMERIZED GASEOUS MONOMERS FROM OLEFIN POLYMERS

An apparatus for removing monomers from a solid olefin polymer containing the monomers which comprises a purge vessel having tapered wherein the vessel has a height-to-bottom-diameter ratio of 0.5:1 to 10:1 and the walls have a tapered angle based on a vertical axis of 0.5 to 15 degrees; a solid discharge element disposed in the lower portion of the purge vessel; a solids receiving hopper; a solids inlet disposed in the receiving hopper; a feeding means disposed in the receiving hopper in communication with an inlet for feeding solids to the purge vessel; a gas-permeable, solids-impermeable constraint means disposed below the feeding means defining the upper limit of an expanded bed of solids and defining a gas collection chamber between the top of the purge vessel and the constraint means; a gas entry means disposed in the purge vessel within or below an expended bed of solids; and gas discharge means disposed in communication with the gas collection chamber for discharging gas from the ...

PROCESS AND COMPOSITION FOR MANUFACTURING FRIABLE RUBBER BALES

The invention relates to a composition for coating wet rubber particles during extrusion and pelletization prior to drying comprising an inorganic partitioning agent, a thickener and binder reagent, water and a water soluble anionic dispersant, and to the process for application to elastomers including those of low viscosity or high resin content to improve their processability during manufacture.

PROCESS FOR FINISHING A RESIN FROM AN EMULSION POLYMERIZED LATEX

A process for finishing latex to form a dry resin and the resulting product. The process includes coagulating a latex of a thermoplastic polymer at a temperature at or just above the agglomeration temperature of the resin, dewatering the resin slurry to form a resin cake, drying the resin cake using extrusion technology to form a resin melt and solidifying the resin melt to form the resin. Preferred processes of the invention also include finishing the resin, such as by pelletizing and/or grinding it. More preferred processes of the invention include collecting and neutralizing the aqueous liquid byproducts from the dewatering and drying steps of the process. One embodiment of the invention includes utilizing water to solidify the resin melt, pelletizing the resin and drying the pellets. Most preferred processes of the invention include recycling any aqueous liquid byproducts of the solidifying and/or pellet drying steps, and recycling dried resin that is outside of the specification back ...

Processing technology and system for preparing improved-type water-line constant-viscosity natural rubber

Smoked sheet graded rubber

Method of preparation of the mixtures of natural rubber or synthetic

METHOD FOR DRYING NATURAL RUBBER

Natural rubber latex coagulation and synthetic

Purification process by osmosis regenerated rubbers and other soluble materials in the hydrocarbons

Proceeded of treatment of rubber, of gutta-perched, and other similar rough gum resins, for obtaining pure rubber

Method of preparation of the rubber of serum of centrifugation of natural latex

Improvement brought in the manufacture of articles manufactured in caoutchoucbrut

Method and apparatus for the separation of the rubber and the resin in the latex or the resinous products or may not be natural rubber-containing

Procédé pour éliminer les solvants chlorurés des polymères chlorurés.

PROCEDE D'ELIMINATION DE SOLVANTS CHLORURES DE POLYMERES CHLORURES QUI LES RETIENNENT A LA SUITE D'UN PROCEDE DE CHLORURATION, CARACTERISE EN CE QU'APRES AVOIR SECHE ET PULVERISE LEDIT POLYMERE CHLORURE, ON LE TRAITE PAR UN SOLVANT ORGANIQUE, ALIPHATIQUE NON HALOGENE OU AROMATIQUE HALOGENE.

A METHOD FOR ELIMINATING THE SOLVENTS CHLORIDES FROM THE POLYMERS CHLORIDES

Method of preparation of synthetic rubber crumbs for drying

PROCESS OF DRYING AND EXTRUSION Of an ELASTOMER WITH GAS INJECTION

Improvements in obtaining coagulated rubber or another similar matter and processes for the preparation preliminary of these substances to vulcanization

METHODS FOR PRODUCING POLYMER LATEX, TO PRODUCE A LATEX COMPOSITION, TO PRODUCE A MOLDED ARTICLE DIP AND TO PRODUCE A SUBSTRATE ADHESIVE LAYER FORMATION

Process for manufacturing friable rubber bales

A process for coating wet rubber pellets including coating the pellets with an inorganic partitioning agent, a thickener and binder, and an anionic water soluble dispersant, air conveying the pellets to a dryer, and compressing the pellets to form a bale. By virtue of the coating, the bales are rendered more friable.

Method of making rubber

Rubber is made by mixing the rubber ingredients at elevated temperature in rubber mixing equipment to obtain a mixed rubber compound. The mixed rubber compound is cryogenically ground into a powder by the application of a cryogenic material into the grinder. A further ingredient is added to the mixed rubber compound powder in a mixer while the further ingredient and mixed rubber compound are in a dry condition to obtain a resulting mixture which is later vulcanized. In one embodiment the further ingredient is fragile ingredients. In another embodiment the method is used for making non-solvent contact adhesive.

Aerosol spray starch formulation

An improved aerosol spray starch formulation is prepared by combining a starch component, a polyhydric material, a nonionic surfactant and a mixture of boric acid and borax in an aqueous medium together with a normally gaseous liquefied propellant. The starch formulation provides after pressing an excellent starching effect, that is, stiffness without roughness, without flaking or aerosol clogging.

Process for recovering rubber from natural rubber latex

Processes for recovering natural rubber from an aqueous natural rubber latex that contains extractables and one or more additives and that is essentially free of lignocellulosic plant material are described. Natural rubber in the latex is separated from the water. Preferably, the amount of non-rubber extractables in the natural rubber is reduced by one or more extraction steps yielding a dried natural rubber.

A METHOD OF CLEANING OR PURIFYING ELASTOMERS AND ELASTOMERIC ARTICLES WHICH ARE INTENDED FOR MEDICAL OR PHARMACEUTICAL USE

A method of cleaning or purifying elastomers and elastomeric articles which are intended for medical or pharmaceutical use which method comprises firstly performing a solvent extraction process on the elastomer or elastomeric article using a solvent in a non-supercritical state to substantially remove impurities therefrom and thereafter subjecting the elastomer or elastomeric article to a further solvent extraction step using a supercritical fluid or a mixture of supercritical fluids in order to remove or substantially reduce the concentration of the residue of extracting solvent remaining in the elastomer or elastomeric article after the first solvent extraction process.

СПОСОБ ВЫДЕЛЕНИЯ КАУЧУКА ИЗ ВЫДЕРЖАННЫХ БРИКЕТОВ И ВЫДЕРЖАННЫЕ БРИКЕТЫ, СОДЕРЖАЩИЕ РАСТИТЕЛЬНЫЙ МАТЕРИАЛ ИЗ РАСТЕНИЙ, НЕ ЯВЛЯЮЩИХСЯ ГЕВЕЕЙ

Изобретение относится к способу выделения каучука из брикетов содержащих каучук растений, не являющихся гевеей. Выдержанные в течение 21-200 дней после получения брикеты, содержащие антиоксидант и измельченный растительный материал, измельчают и смешивают с неполярным органическим растворителем и с полярным органическим растворителем. Затем удаляют большую часть багассы из полученной суспензии и получают мисцеллу и первую порцию багассы. Удаляют 80-95 мас.% багассы из мисцеллы. Возможна последующая обработка мисцеллы до получения осветленного раствора каучука. Путем добавления дополнительного полярного растворителя и/или путем удаления неполярного растворителя проводят коагуляцию каучука и получают очищенный твердый каучук. Изобретение позволяет снизить затраты при получении каучука из растений, не являющихся гевеей. 2 н. и 5 з.п. ф-лы, 2 табл., 3 пр.

Способ удаления запаха и кислотности у синтетического каучука "совпрена"

Verfahren und Vorrichtung zum Reinigen von Kautschukgegenstaenden

A method of cleaning or purifying elastomers and elastomeric articles which are intended for medical or pharmaceutical uses

PROCEDURE AND DEVICE FOR THE COAGULATION AND DRYING PROCESS OF LATEX

SUPERCRITICAL LIQUID EXTRACTION WITH HYDRAULIC FLUORINE ALKANES

Torpedo launching pipe for submarines.

Pharmaceutical metered dose inhaler and methods relating thereto

A method of cleaning or purifying elastomers and elastomeric articles which are intended for medical or pharmaceutical use

Methods for increasing the extractable rubber content of non-Hevea plant matter

Provided herein are methods for increasing the extractable rubber content of non-Hevea plant matter. The methods comprise the use of particular forms of hammer milling and/or roller milling and result in an increase in the amount of rubber that can be extracted from the resulting plant matter such as by organic solvent extraction or aqueous extraction.

EXTRUDER EXPLOSIVE DRYING OF POLYMERS WITH INERT GAS INJECTION

METHOD OF REMOVING VOLATILES FROM AN ELASTOMER

METHODS FOR INCREASING THE EXTRACTABLE RUBBER CONTENT OF NON-HEVEA PLANT MATTER

Methods for increasing the extractable rubber content of non-Hevea plant matter that entail the use of particular forms of hammer milling and/or roller milling in an increase in the amount of rubber that can be extracted from the resulting plant matter such as by organic solvent extraction or aqueous extraction are provided. In certain embodiments, the methods are for increasing the extractable rubber content of guayule plant matter, and entail the use of particular forms of hammer milling in combination with roller milling and flaking to increase the amount of rubber that can be extracted from the guayule plant matter such as by organic solvent extraction or aqueous extraction.

Vacuum-microwave continuous gutta-percha drying and desolventizing device

The invention discloses a vacuum-microwave continuous gutta-percha drying and desolventizing device. A plurality of layers of vibration tanks are arranged in the tank body and connected with a vibration source and an elastic steel strap, and the elastic steel strap can adjust the material transmission speed and direction when the sieve plate vibration tank vibrates; the tank body is provided with a feed port and a feed valve which are connected with the topmost vibration tank, and is also provided with a discharge port and a discharge valve which are connected with the bottommost vibration tank; the tank body is provided with a microwave generator; the tank body is connected with an upper shell side of a tube type heat exchanger through a solvent vapor tube, a lower shell side is connected with a solvent condensate temporary storage tank, and the solvent condensate temporary storage tank is provided with a solvent return valve and a vacuum breaker; the shell side of the tube type heat exchanger ...

Process and apparatus for the treatment of gutta-perched, the balata and produced similar, natural or artificial and for the manufacture of objects moulded with cesproduits

Method of preparation of rubber

Process for the preparation of rubber for its storage and transportation

Improvements with electrical insulators containing of gutta-perched or the balata

Purified rubber and processes and apparatuses for its preparation

Modified natural rubber, production method thereof, tire rubber composition, and pneumatic tire

The present invention provides a modified natural rubber which simultaneously achieves good fuel economy and good heat-aging resistance, and the production method thereof. The present invention also provides a tire rubber composition and a pneumatic tire which are produced using the modified natural rubber. The present invention relates to a modified natural rubber which is obtainable by treating a rubber coagulated from a saponified natural rubber latex, with a basic compound and then with an acidic compound.

Treatment of gutta percha, balata, and like thermoplastic natural and artificial products and the manufacture of molded articles therefrom

Method for the production of nitrile rubber

METHOD AND APPARATUS FOR REMOVING UNPOLYMERIZED GASEOUS MONOMER FROM OLEFIN POLYMER

PROBLEM TO BE SOLVED: To provide a method and an apparatus for removing unpolymerized monomer from a solid olefin polymer containing the monomer. SOLUTION: This apparatus for removing unreacted monomer from a solid polyolefin polymer consists of a purge vessel 7 having a ratio of the height to the diameter of the bottom of 0.5:1 to 10:1, having a tapered wall, this wall having a taper angle of 0.5-15 degrees; a solid discharge element 12 disposed on the bottom of the purge vessel 7; a solid receiving hopper 2; a gas-permeable solid-impenetrable restricting means 6 disposed below a feed means and confining the upper limit of the expanded solid floor and confining a gas collection chamber 5 between the top of the purge vessel and the restricting means; a gas introducing means 10 disposed within or below the floor of the expanded solid; and a gas discharging means 14 for discharging gases from the chamber and disposed in communication with the gas collection chamber. This method comprises ...

Способ регулирования процесса сушки дивинилстирольного каучука

Способ дезодорации совпрена

PROCESS FOR THE PRODUCTION OF LIQUID CHLOROPRENE POLYMERS

... 1451996 Liquid chloroprene polymers DENKI KAGAKUKOGYO KK 15 May 1974 [17 May 1973] 21536/74 Heading C3P A liquid polymer is produced by polymerizing chloroprene, alone or with a comonomer (e.g. 2,3-dichloro-1,3-butadiene), in the presence of a xanthogen disulphide compound (where R contains 1-12 carbon atoms and is alkyl, aryl, aralkyl or cycloaliphatic) as a chain transfer agent, and in an organic solvent having a boiling point not more than 160‹ C. (at atmospheric pressure) selected from carbon disulphide, aromatic hydrocarbons, halogenated aliphatic hydrocarbons, and cyclic ethers, said solvent being present in an amount of 20-200 parts (by weight) per 100 parts total monomer, and the xanthogen disulphide compound being in an amount of 2À5-20 parts per 100 parts total monomer, whereby a chloroprene-based liquid polymer having groups substantially at the terminals thereof is obtained. The organic solvent preferably has a boiling point of 40-160‹ C., and may be carbon disulphide, benzene ...

Rubber composition for clinch apex and pneumatic tire

The present invention provides a rubber composition for a clinch apex which improves in fuel economy, flex crack growth resistance, and processability in a balanced manner, and also provides a pneumatic tire produced using the rubber composition. The present invention relates to a rubber composition for a clinch apex, including: a modified natural rubber having a phosphorus content of 200 ppm or less; and at least one of carbon black and a white filler.

PROCESS FOR THE PRODUCTION OF WATER AND SOLVENT-FREE HYDROGENATED NITRILE RUBBERS

The present invention relates to a process for the production of water and solvent-free hydrogenated nitrile rubber polymers, to the hydrogenated nitrile rubbers and the use thereof. 2. The process pursuant to claim 1 , characterized in that the content of volatile compounds in the hydrogenated nitrile rubber being defined as substantially free of volatile compounds is less than 1.25 wt % claim 1 , preferably less than 0.75 wt % claim 1 , more preferably less than 0.5 wt. % claim 1 , and most preferably less than 0.2 wt % claim 1 , based on the mass of the hydrogenated nitrile rubber.3. The process pursuant to or claim 1 , characterized in that Fluid (F) is obtained by1) polymerising at least one conjugated diene, at least one α,β-unsaturated nitrile and optionally one or more further copolymerizable monomers to obtain a nitrile rubber,2) subjecting the nitrile rubber of step 1) to a catalytic metathesis reaction optionally in the presence of a 1-olefin to reduce the molecular weight of the nitrile rubber and3) subjecting the nitrile rubber of step 2) to a hydrogenation reaction in a volatile compound, preferably an organic solvent, resulting in a fluid (F) comprising a hydrogenated nitrile rubber having a viscosity of of at maximum 20.000 Pa*s (measured at 100° C. and at a shear rate of 1/s), preferably at maximum 10.000 Pa*s, more preferably at maximum 5.000 Pa*s and most preferably at maximum 1.000 Pa*s and at least one volatile compound.4. The process pursuant to any one of to claim 1 , characterized in that the hydrogenated nitrile rubber being substantially free of volatile compounds has a weight average molecular weight Mw of 50.000 g/mol or less claim 1 , preferably 10.000 to 50.000 g/mol claim 1 , more preferably 12.000 to 40.000 g/mol and a polydispersity (Mw/Mn) of less than 2.0.5. The process pursuant to any one of to claim 1 , characterized in that the hydrogenated nitrile rubber being substantially free of volatile compounds has a weight average ...

Process for Particleboard Manufacture

Improved particleboard and methods for fabricating improved particleboard (e.g., natural fiber/material-based particleboard) are disclosed. More particularly, the present disclosure provides systems/methods for fabricating particleboard (e.g., formaldehyde-free particleboard) utilizing natural fibers/materials (e.g., lignocellulosic materials), wherein the particleboard has improved performance characteristics and/or mechanical properties. Methods for fabricating fiber-reinforced biocomposites (e.g., natural fiber-reinforced wheat gluten biocomposites) are disclosed. For example, systems/methods for fabricating particleboard from lignocellulosic materials (e.g., coconut materials), along with a binder material (e.g., wheat gluten), are provided. In general, the fiber or lignocellulosic material is treated with sodium hydroxide and/or a silane coupling agent as an adhesion promoter to enhance interfacial adhesion between the fiber and the binder. For example, (3-triethoxysilylpropyl)-t-butylcarbamate (MISO) (a masked isocyanate functional silane) was utilized to improve interfacial adhesion between the binder and the natural fibers. 1. A method for fabricating a particleboard comprising:a) soaking a portion of a lignocellulosic material in an alkali solution;b) drying the lignocellulosic material after soaking;c) soaking a portion of the lignocellulosic material in a masked isocyanate functional silane solution;d) drying the lignocellulosic material after soaking; ande) molding the lignocellulosic material.2. The method of claim 1 , wherein at least a portion of the lignocellulosic material is derived from natural fibers.3. The method of claim 1 , wherein prior to step a) claim 1 , the lignocellulosic material is dried to a moisture content of from about 3% to about 4.5%.4. The method of claim 1 , wherein step a) is performed by soaking the lignocellulosic material in about a 5% w/v alkali solution for about 4 hours at about room temperature.5. The method of claim 1 ...

PROCESSES FOR THE REMOVAL OF RUBBER FROM NON-HEVEA PLANTS

Provided herein are organic solvent-based processes for the removal of rubber from non-plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter). 117-. (canceled)18Hevea. A method of increasing the rubber recovery from non-plants comprising:{'i': 'Hevea', 'A. utilizing briquettes comprising (i) compressed chopped plant matter having an average size of 1.5″ or less, comprising bagasse, rubber, resin, residual water and (ii) no more than 5 weight % leaves from a non-plant, wherein the briquettes have a density that is 40-325% higher than the density of the non-compressed plant matter;'}B. subjecting the briquettes to an organic solvent extraction process whereby the briquettes are mixed with at least one polar organic solvent and at least one non-polar organic solvent to form a slurry that contains plant matter, organic solvents and 0.5-10 weight % water; andC. processing the slurry to remove bagasse and resin and recover at least 95-99% by weight of the rubber contained within the briquettes.19. The method of claim 18 , wherein the chopped plant matter is from guayule shrubs and (B) and (C) comprise:{'i': 'Hevea', 'a. preparing a slurry from (i) the briquettes wherein the briquettes contain plant matter from a non-plant comprising bagasse, rubber and resin, (ii) the least one non-polar organic solvent and (iii) the least one polar organic solvent, wherein the slurry contains 10-50% by weight plant matter from the briquettes, 50-90% by weight of (ii) and (iii) combined, and 0.5-10 weight % water from the plant matter;'}b. removing a majority of the bagasse from the slurry to produce a miscella and a first bagasse portion;c. optionally adding additional polar organic solvent, non-polar organic solvent or a combination thereof to the miscella to form a reduced viscosity ...

Method for producing polymer latex

A method for producing a polymer latex, includes: a stirring step of adding water to a polymer solution obtained by dissolution of a synthetic rubber in an organic solvent, to allow water to be stirred in the polymer solution, thereby providing a water-stirred polymer solution (A); an aqueous phase removal step of removing an aqueous phase from the water-stirred polymer solution (A), thereby providing an aqueous phase-removed polymer solution (B); an emulsification step of mixing the aqueous phase-removed polymer solution (B) with an aqueous solution including a surfactant, for emulsification in water, thereby obtaining an emulsified liquid (C); a solvent removal step of removing an organic solvent in the emulsified liquid (C); and a concentration step of concentrating the emulsified liquid from which the organic solvent is removed (D).

Stone and Epoxy Tiles and a Method to Manufacture

A tile made of hard objects, such as stones, that are enclosed in epoxy and a method to fabricate such tiles are disclosed. The method includes placing a predetermined volume of sand of a predetermined coarseness into a mold of a predetermined size; leveling the sand in the mold; placing a first predetermined volume of stones of a first predetermined size range over the sand in the mold; placing a second predetermined volume of stones of a second predetermined size range over the sand in the mold; pouring a predetermined amount of self-leveling epoxy material over the stones and sand; and curing the epoxy material. A top coat is next applied to ensure that the bigger stones that sit proud of the epoxy are wetted to give the brilliant color of wet stones as seen at the lakeshore. 1. A method for manufacturing a tile , comprising:placing a mold onto a level surface;placing a predetermined volume of sand of a predetermined coarseness into the mold;placing a predetermined volume of hard objects of a predetermined size range over the sand;pouring a predetermined amount of self-leveling epoxy material over the hard objects and sand; andcuring the epoxy material.2. The method of wherein the hard objects are stones claim 1 , the method further comprising: smoothing the sand to a level surface before placing the stones over the sand wherein the smoothing is done by one of shaking and troweling.3. The method of wherein the hard objects of the predetermined size range of is a first predetermined size range of stones claim 1 , the method further comprising:placing a predetermined volume of stones of a second predetermined size range over the sand after placing the predetermined volume of stones of the first predetermined size range wherein the second predetermined size range is smaller than the first predetermined size range.4. The method of further comprising:washing the hard objects in an acidic bath; anddrying the hard objects after washing the hard objects and prior to ...

METHOD FOR PRODUCING SYNTHETIC POLYISOPRENE LATEX

A method for producing a synthetic polyisoprene latex, including a step of mixing a latex of synthetic polyisoprene (A) synthesized by use of a Ziegler type catalyst and a latex of synthetic polyisoprene (B) synthesized by use of an organic alkali metal catalyst at a weight ratio of “synthetic polyisoprene (A): synthetic polyisoprene (B)=10:90 to 90:10”. In the method, preferably, the weight average molecular weight of the synthetic polyisoprene (A) is 100,000 to 3,000,000 and the weight average molecular weight of the synthetic polyisoprene (B) is 1,000,000 to 5,000,000. 1. A method for producing a synthetic polyisoprene latex , comprising:a step of mixing a latex of synthetic polyisoprene (A) synthesized by use of a Ziegler type catalyst and a latex of synthetic polyisoprene (B) synthesized by use of an organic alkali metal catalyst at a weight ratio of “synthetic polyisoprene (A): synthetic polyisoprene (B) =10:90 to 90:10”.2. The method for producing a synthetic polyisoprene latex according to claim 1 , whereina weight average molecular weight of the synthetic polyisoprene (A) is 100,000 to 3,000,000, anda weight average molecular weight of the synthetic polyisoprene (B) is 1,000,000 to 5,000,000.3. The method for producing a synthetic polyisoprene latex according to claim 1 , wherein the latex of synthetic polyisoprene (A) is obtained by once coagulating a polymer solution of synthetic polyisoprene (A) obtained by solution polymerization claim 1 , in the presence of the Ziegler type catalyst claim 1 , of isoprene dissolved in an organic solvent claim 1 , to provide a solid material claim 1 , re-dissolving the solid material in an organic solvent claim 1 , and emulsifying the resultant obtained by re-dissolving by use of an aqueous surfactant solution.4. The method for producing a synthetic polyisoprene latex according to claim 1 , wherein the latex of synthetic polyisoprene (B) is obtained by directly emulsifying a polymer solution of synthetic polyisoprene (B) ...

Method for producing natural rubber

The present invention provides a method for producing natural rubber with which the odors of solid natural rubber is easily reduced, and further which does not degrade physical properties such as heat aging resistance. The present invention relates to a method for producing natural rubber, the method including a sheeting step including sheeting a non-deproteinized solid natural rubber to form a natural rubber sheet, the natural rubber sheet having a moisture content of 20% or less.

USE OF A FINE AQUEOUS POLYMER DIPERSION FOR THE IMPREGNATION OF NATURAL FIBRES

The use of an aqueous polymer dispersion including at least one amorphous polymer having a Tg varying between 55° C. and 175° C. or a semi-crystalline polymer having a melting point varying between 70° C. and less than 220° C., the weight concentration of the polymer in the dispersion varying between 5 and 50%, with the polymer particles having an average size of less than 10000 nm, as a binder for impregnating strands or strips of natural fibres, in particular flax fibres, with said polymer being incorporated in the core of the fibre bundle forming the strand or strip and thereby binding the fibres together. 1. The use of an aqueous polymer dispersion comprising at least one amorphous or semi-crystalline polymer , as binder for impregnating rovings or ribbons of natural fibers , wherein said polymer:is incorporated into the core of the bundle of fibers making up said roving or sad ribbon and thus binding said fibers to one another,if it is amorphous, has a Tg ranging from 50° C. to 175° C.,is present in said dispersion in a content by weight ranging from 5% to 50% with particles in dispersion having a number-average size of less than 10000 nm, andis chosen from copolyamides, polyesters, polyurethanes, poly(meth)acrylates including copolymers, polyolefins or fluorinated polymers including fluorinated copolymers.2. The use as claimed in claim 1 , wherein said polymer is chosen from a poly(meth)acrylate (including copolymers) functionalized with acid functions or a fluorinated polymer (including copolymers) grafted with reactive functions and that said aqueous dispersion is an aqueous dispersion obtained by emulsion polymerization in the presence of a surfactant and wherein said reactive functions can react with said natural fibers and more particularly with flax fibers.3. The use as claimed in claim 1 , wherein said polymer is a polyurethane formed from an ionic polyisocyanate prepolymer dispersed in water with chain extension in an aqueous medium.4. The use as ...

Processes For Recovering Rubber From Natural Rubber Latex

Processes for recovering natural rubber from an aqueous natural rubber latex that contains extractables and one or more additives and that is essentially free of lignocellulosic plant material are described. Natural rubber in the latex is separated from the water. Preferably, the amount of non-rubber extractables in the natural rubber is reduced by one or more extraction steps yielding a dried natural rubber.

EXTRACTION OF POLYISOPRENE WITH HIGH MOLAR MASS

The invention relates to a method for extracting high-quality polyisoprene by grinding plants via rotary shearing using a device comprising at least one rotor and at least one stator, into particles of size smaller than 1 mm, or grinding at a pH higher than 3 and lower than 8. This method is implemented in aqueous phase and allows the preparation of a dispersion of polyisoprene in water having a weight average molecular weight (M) higher than 800 000 g/mol. The polyisoprene is extracted from plants and in particular from guayule (). It is a method that is particularly heedful of the environment. 1. A method for extracting polyisoprene having a weight-average molecular weight (M) higher than 800 000 g/mol , in the form of a dispersion in water , comprising:{'i': Parthenium argentatum', 'Euphorbia lathyris', 'Argania spinosa', 'Parthenium incanum', 'Chrysothamnus pinifolius', 'Asclepias speciosa', 'Cacalia atripikifolia', 'Cryptostegia grandiflora', 'Taraxacum koksaghyz', 'Scorzonera', 'Pycnanthemum incanum', 'Teucrieum canadense', 'Campanula americana, 'grinding, via rotary shearing using a device comprising at least one rotor and at least one stator or grinding at a pH higher than 3 and lower than 8, at least one plant, plant part or plant derivative selected from the group consisting of guayule (), spurge (), argan (), mariola (), rubber rabbitbrush (), showy milkweed (), pale Indian plantain (), rubber vine (), Russian dandelion (), scorzonera (sp.), hoary mountain mint (), Canada germander () and Tall Bellflower in a volume of water or in an aqueous solution ranging from 1 to 15 L/kg of plant, into particles of size less than 1 mm; and'}separating solid residues from the dispersion.2. The method according to claim 1 , wherein the grinding is performed at a pH higher than 3 and lower than 8 claim 1 , via shearing alone or shearing with flexion.3. The method according to claim 1 , wherein the grinding is performed at a pH higher than 3 and lower than 11 claim 1 , ...

CARBOXYL GROUP-CONTAINING NITRILE RUBBER, METHOD FOR PRODUCTION SAME, CROSSLINKABLE NITRILE RUBBER COMPOSITION, AND CROSSLINKED RUBBER

A carboxyl group-containing nitrile rubber comprising an α,β-ethylenically unsaturated nitrile monomer unit in a content of 5 to 60 wt % and having an iodine value of 120 or less, wherein the carboxyl group-containing nitrile rubber has a polymer Mooney viscosity (ML1+4, 100° C.) of 60 or less and a polymer pH of 7 or less. 1. A carboxyl group-containing nitrile rubber comprising an α ,β-ethylenically unsaturated nitrile monomer unit in a content of 5 to 60 wt % and having an iodine value of 120 or less , wherein the carboxyl group-containing nitrile rubber has a polymer Mooney viscosity (ML1+4 , 100° C.) of 60 or less and a polymer pH of 7 or less.2. The carboxyl group-containing nitrile rubber according to claim 1 , wherein a content of sodium in the carboxyl group-containing nitrile rubber is 10 claim 1 ,000 ppm by weight or less.3. The carboxyl group-containing nitrile rubber according to claim 1 , comprising a carboxyl group-containing monomer unit in a content of 1 to 30 wt %.4. The carboxyl group-containing nitrile rubber according to claim 1 , comprising a conjugated diene monomer unit in a content of 20 to 89.9 wt %.5. A cross-linkable nitrile rubber composition comprising the carboxyl group-containing nitrile rubber according to and a cross-linking agent.6. A cross-linked rubber prepared by cross-linking the cross-linkable nitrile rubber composition according to .7. A method for producing the carboxyl group-containing nitrile rubber according to claim 1 , comprising adding a salt of a monovalent cation to a latex of the carboxyl group-containing nitrile rubber to coagulate the carboxyl group-containing nitrile rubber.8. The method for producing the carboxyl group-containing nitrile rubber according to claim 7 , wherein the salt is sodium chloride claim 7 , sodium nitrate claim 7 , or sodium sulfate.9. The method for producing the carboxyl group-containing nitrile rubber according to claim 7 , wherein a pH of the latex is 5.5 or less.10. The method for ...

METHOD FOR TREATMENT OF SYNTHETIC RUBBER PRODUCTS, A SYSTEM FOR TREATMENT, THE RESULTING RUBBER PRODUCTS, AND USE OF A METHOD TO REDUCE TYPE IV ALLERGENICITY OF RUBBER PRODUCTS

The present invention relates to a method of reducing type IV rubber allergy of synthetic rubber latex products caused by chemical residues remaining after manufacture of the synthetic rubber products by reducing levels of chemical residues found for said products, said method comprising the steps of: subjecting said products to a wash in a strong alkaline solution to remove the chemical residues remaining after manufacture of the rubber latex products, and a system for reducing type IV allergenicity of synthetic rubber products caused by chemical residues remaining after manufacture of the synthetic rubber latex products by reducing residual levels of chemical residues found for said products, and a product, such as a glove, manufactured from synthetic rubber latex processed in accordance with the method and/or using the system. Further the invention relates to a use of a method of subjecting products to said wash and raising the temperature to at least C to remove the chemical residues remaining after manufacture of the synthetic rubber products. 116-. (canceled)17. A method of reducing type IV rubber allergy of synthetic rubber products caused by chemical residues , in particular residual accelerators and/or antioxidants , remaining after manufacturing of rubber products by reducing levels of chemical residues found for said products , said method comprising the steps of:subjecting said rubber products to a wash in a strong alkaline solution to remove the chemical residues remaining after manufacture of the synthetic rubber products; andraising the temperature of the strong alkaline solution to at least 100° C., and keeping the strong alkaline solution in a fluid phase without evaporation or boiling and/or freeing salty alkalines.18. The method of claim 17 , comprising: raising the temperature of the strong alkaline solution to 110° C. or higher and more preferably to approximately 118° C.19. The method of claim 17 , further comprising: pressurizing the strong ...

Methods For Increasing The Extractable Rubber Content Of Non-Hevea Plant Matter

Methods for increasing the extractable rubber content of non-plant matter that entail the use of particular forms of hammer milling and/or roller milling in an increase in the amount of rubber that can be extracted from the resulting plant matter such as by organic solvent extraction or aqueous extraction are provided. In certain embodiments, the methods are for increasing the extractable rubber content of guayule plant matter, and entail the use of particular forms of hammer milling in combination with roller milling and flaking to increase the amount of rubber that can be extracted from the guayule plant matter such as by organic solvent extraction or aqueous extraction. 116-. (canceled)18Hevea. The method according to claim 17 , wherein the non-plant matter comprises guayule shrubs.19. The method according to claim 18 , wherein the milled guayule shrub plant matter has an extractable rubber content at least 100% higher than the pre-milled chopped guayule shrub plant matter.20Hevea. The method according to claim 17 , wherein the milled non-plant matter has an extractable resin content of no more than 3 times the extractable rubber content.21. The method according to claim 17 , wherein the hammer milling utilizes a screen size of 3/16″ or smaller.22. The method according to claim 17 , wherein the roller milling utilizes corrugated rolls having no more than 8 grooves per inch.23. The method according to claim 17 , wherein the roller milling utilizes one pass through the rolls.24. The method according to claim 17 , wherein the roller milling utilizes one pass through the rolls with a first roll having 6 grooves per inch and a second roll having 8 grooves per inch and the extractable rubber content is increased by at least 60%.25Hevea. The method according to claim 17 , wherein the chopped non-plant matter has an average length of less than 2″ and contains no more than 1 weight % of material with a mesh size less than 20.26Hevea. The method according to claim 17 , ...

Elimination of contaminants in wet natural rubber

A method for preparation of decontaminated natural rubber is provided. The method is characterized in that it comprises a decontamination step in which wet natural rubber coagulum passes through a system comprising an extruder and a filter installed at the extruder outlet, the extruder comprising an axially symmetrical grooved sheath comprising in its thickness grooves opening on the inner surface of the sheath.

Processes For The Removal Of Rubber From TKS Plant Matter

Provided herein are organic solvent-based processes for the removal of rubber from non-plants such as TKS. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter). 1. A process for increasing the rubber recovery from TKS plant matter comprising:A. utilizing briquettes comprising (i) compressed chopped TKS plant matter having an average size of 1.5″ or less, comprising bagasse, rubber, resin, residual water and (ii) no more than 5 weight % leaves, stems, crowns, and flowers, wherein the briquettes have a density that is 40-325% higher than the density of the non-compressed TKS plant matter;B. subjecting the briquettes to an organic solvent extraction process whereby the briquettes are mixed with at least one polar organic solvent and at least one non-polar organic solvent to form a slurry that contains TKS plant matter, organic solvents and 0.5-10 weight % water; andC. processing the slurry to remove bagasse and resin and recover at least 95-99% by weight of the rubber contained within the briquettes.3. The process of claim 1 , wherein the briquettes contain at least one antioxidant.4. The process of claim 2 , wherein at least one of steps (b) and (d) comprises the use of a centrifuge.5. The process of claim 2 , wherein the briquettes contain at least one antioxidant.6. The process of claim 2 , wherein the majority of bagasse removed from the slurry in (b) is 60-95 weight % of the bagasse contained within the slurry.7. The process of claim 2 , wherein removing of the majority of bagasse in (b) comprises use of a screw press.8. The process of claim 2 , wherein removing of the majority of bagasse in (b) comprises use of a counter-current extractor.9. The process of claim 2 , wherein the TKS plant matter in the slurry has been in contact with the solvents (ii) and (iii) for 0.3 to 3 hours prior to (b).10. ...

METHODS FOR PROCESSING AND PLASTICIZING POLY(ETHYLENE FURANOATE) PREFORMS BY WATER SORPTION

This disclosure provides effective methods for expanding the processing window for poly(ethylene furanoate) (PEF) and poly(ethylene furanoate) co-polymer (PEF co-polymer) polyester preforms, such that these preforms can be beneficially used in the fabrication of bottles and containers, including bottles for carbonated soft drinks. The processing window is expanded by, for example, pre-conditioning the PEF or PEF co-polymer preform prior to stretch blow-molding by contacting the PEF or PEF co-polymer preform with water or high (>50%) relative humidity air for a desired time period and at a temperature greater than or equal to ambient temperature, to take advantage of the unique and unexpected properties afforded the preform by water sorption at these temperatures. 1. A method of pre-conditioning a poly(ethylene furanoate) or poly(ethylene furanoate) co-polymer preform for stretch blow-molding , the method comprising:a) having a poly(ethylene furanoate) (PEF) or poly(ethylene furanoate) co-polymer (PEF co-polymer) preform; andb) contacting the PEF or PEF co-polymer preform with water or high (>50%) relative humidity air at a temperature greater than or equal to ambient temperature for a time period.2. The method of claim 1 , wherein the PEF or PEF co-polymer preform is contacted with at least about 65% relative humidity air at a temperature greater than about 45° C. for a time period from about 0.25 h to at least 72 h.3. The method of claim 1 , wherein the PEF or PEF co-polymer preform is contacted with at least about 85% relative humidity air at a temperature greater than about 35° C. for a time period from about 0.5 h to at least 44 h.4. The method of claim 1 , wherein the PEF or PEF co-polymer preform is contacted with ambient temperature water for a time period from about 3 h to at least 48 h claim 1 , wherein the ambient temperature is room temperature.5. The method of claim 1 , wherein the PEF or PEF co-polymer preform is contacted with water at a temperature of ...

Processes For The Removal Of Rubber From Non-Hevea Plants

Provided herein are organic solvent-based processes for the removal of rubber from non-plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter). 2Hevea. The process of claim 1 , wherein the (i) non-plant matter comprises guayule plant matter.3. The process of claim 1 , wherein the majority of bagasse removed from the slurry in (b) is 60-95 weight % of the bagasse contained within the slurry.4. The process of claim 1 , wherein removing of the majority of bagasse in (b) comprises use of a screw press.5. The process of claim 1 , wherein removing of the majority of bagasse in (b) comprises use of a counter-current extractor and the majority is 70-95 weight %.6. The process of claim 1 , wherein the plant matter in the slurry has been in contact with the solvents (ii) and (iii) for 0.3 to 3 hours prior to (b).7. The process of claim 1 , wherein the removing in (d) comprises use of a centrifuge.831. The process of claim claim 1 , wherein the centrifuge is a disk centrifuge operated a speed sufficient to generate a g force of 4 claim 1 ,000-12 claim 1 ,000.9. The process of claim 1 , wherein at least a portion of at least one of the first bagasse portion and the second bagasse portion is recycled into the slurry claim 1 , allowing for transfer of additional rubber or resin that is associated with the bagasse portion(s) into the miscella that is produced in (b).10. The process of claim 1 , wherein the plant matter comprises chopped guayule shrub including bark and woody tissue with no more than 5 weight % of the plant material comprising leaves.11. The process of claim 1 , wherein at least (a)-(e) are conducted at a temperature or temperatures of 10-50° C.12. The process of claim 1 , wherein the non-polar organic solvent and any additional non-polar organic solvent comprises hexane ...

Method of recycling rubber

A method of recycling rubber includes pre-treating vulcanized ground rubber to prevent the vulcanized ground rubber from encountering significant additional crosslinking during co-vulcanization with fresh rubber compound, and promoting better bonding between the vulcanized ground rubber and the fresh rubber compound. The ground vulcanized rubber can be coated with a layer of non-vulcanized rubber that includes cure inhibitors or other ingredients dispersed within the layer to aid in the coating process and/or co-vulcanization of the vulcanized ground rubber and fresh rubber compound. The vulcanized ground rubber can also be pre-treated with a mixture of at least one chemical curing agent inhibitor and a solvent capable of solubilizing the chemical curing agent inhibitor and dispersing the curing agent inhibitor within the vulcanized ground rubber.

MYOGLOBIN-CONTAINING FOOD FRESHNESS DETERIORATION SUPPRESSING MATERIAL AND USE THEREOF

An object of the present invention is to provide a simple measure which can suppress freshness deterioration of a myoglobin-containing food. The present invention relates to a myoglobin-containing food freshness deterioration suppressing material for suppressing freshness deterioration of a myoglobin-containing food, comprising: a substrate comprising a polymer; and an antioxidant with which at least a part of the surface of the substrate is covered, and/or an antioxidant supported in a layer forming at least a part of the surface of the substrate; wherein 0.01 g/mor more and 20 g/mor less of the antioxidant is included relative to the area of the part in which the antioxidant is present, of the surface of the substrate. 1. A myoglobin-containing food freshness deterioration suppressing material for suppressing freshness deterioration of a myoglobin-containing food , comprising:a substrate comprising a polymer; andan antioxidant with which at least a part of a surface of the substrate is covered, and/or an antioxidant supported in a layer forming at least a part of a surface of the substrate; wherein{'sup': 2', '2, 'the material comprises 0.01 g/mor more and 20 g/mor less of the antioxidant relative to the area of the part in which the antioxidant is present, of the surface of the substrate.'}314-. (canceled)15. The myoglobin-containing food freshness deterioration suppressing material according to claim 1 , wherein the antioxidant comprises a polyphenol compound or ascorbic acid.16. The myoglobin-containing food freshness deterioration suppressing material according to claim 2 , wherein the antioxidant comprises a polyphenol compound or ascorbic acid.17. The myoglobin-containing food freshness deterioration suppressing material according to claim 15 , wherein the antioxidant comprises a rosemary extract and/or a tea extract comprising a polyphenol compound.18. The myoglobin-containing food freshness deterioration suppressing material according to claim 16 , wherein ...

PROCESS FOR THE PRODUCTION OF WATER AND SOLVENT-FREE POLYMERS

The present invention relates to water and solvent-free polymers, in particular water and solvent-free synthetic rubber products like non-halogenated and halogenated butyl rubber products as well as a process for the production thereof. The invention further relates to a device suitable to accomplish said process. 2. The process pursuant to claim 1 , wherein the non-volatile polymers are synthetic rubbers.3. The process pursuant to claim 2 , wherein the synthetic rubbers are halogenated butyl rubbers.4. The process pursuant to claim 1 , further comprising producing the concentrated fluid from a fluid F that contains from 3 to 50 wt % of the non-volatile polymer and from 60 to 97 wt % of the volatile compounds claim 1 , whereby the aforementioned components add up to 90 to 100 of the total mass of the fluid F claim 1 , wherein the concentrated fluid is produced from the Fluid F by heating the fluid F and degassing the fluid F claim 1 , wherein the concentrated fluid contains from 10 to 60 wt % of the non-volatile polymer and from about 40 to about 90 wt % of the volatile compounds claim 1 , whereby the aforementioned components add up to 90 to 100% of the total mass of the concentrated fluid.5. The process pursuant to claim 1 , wherein the first drying section is a first extruder and the main extruder section is a main extruder.6. The process pursuant to claim 5 , wherein the main extruder has a larger cross sectional area than the first extruder.7. The process pursuant to claim 5 , wherein the vent ports comprise stuffer screws.8. The process pursuant to claim 5 , further comprising adjusting the main extruder to have a dimensionless throughput V/(n*d) of 0.01 to 0.7.9. The process pursuant to claim 1 , wherein the drying section and the main extruder section are both part of a main extruder claim 1 , whereby the drying section is upstream of the main extruder section and has a smaller cross section than the main extruder section.10. The process pursuant to claim 1 ...

PROCESS FOR PRODUCING HIGH QUALITY NON-HEVEA NATURAL RUBBER

Some embodiments of the invention include a process for separating rubber, resin and bagasse from at least a portion of a rubber producing plant including the steps of providing a plant portion and at least partially homogenizing the plant portion in the presence of a resin-solubilizing medium, and extracting rubber using a rubber solubilizing solvent. In some embodiments, the plant portion can include an antioxidant, that in some embodiments, the includes a substantially non-staining antioxidant. Some other embodiments include a process for separating rubber, resin and bagasse from a rubber producing plant comprising the steps of providing a plant portion and applying at least one antioxidant to at least a fraction of the plant portion, milling the plant portion with a milling solvent, and separating rubber form resin using phase separation fractionation. Some embodiments include separation of bagasse and resin components and one or more solvent recovery steps. 1. A process for separating rubber , resin and bagasse from a rubber producing plant comprising the steps of:providing a plant portion;at least partially homogenizing the plant portion in the presence of a resin-solubilizing medium;solvating at least some portion of a resin from the plant portion to form a resin solution and bagasse;performing a first separation process comprising separating at least a portion of the resin solution from the bagasse;recovering resin by removing the resin-solubilizing medium and optionally capturing and reusing the resin-solubilizing medium;at least partially homogenizing the bagasse in a rubber solubilizing solvent to at least partially de-resinate the bagasse and form a rubber solution;performing a second separation process comprising at least partially separating and isolating the rubber solution and the bagasse;processing the rubber solution to produce rubber by at least partially removing the rubber solubilizing solvent and processing the bagasse by at least partially ...

MASTERBATCH MANUFACTURING METHOD AND TIRE MANUFACTURING METHOD

A masterbatch manufacturing method in accordance with the present disclosure comprises an operation in which pre-coagulation rubber latex comprising filler is coagulated to obtain a coagulum; an operation in which the coagulum is dewatered; and an operation in which the dewatered coagulum is plasticized as it is dried by means of an extruder; wherein, during the operation in which the dewatered coagulum is plasticized as it is dried, the coagulum comprises a peptizing agent. 1. A masterbatch manufacturing method comprising:an operation in which pre-coagulation rubber latex comprising filler is coagulated to obtain a coagulum;an operation in which the coagulumn is dewatered; andan operation in which the dewatered coagulum is plasticized as it is dried by means of an extruder;wherein, during the operation in which the dewatered coagulum is plasticized as it is dried, the coagulum comprises a peptizing agent.2. The masterbatch manufacturing method according to wherein claim 1 , during the operation in which the dewatered coagulum is plasticized as it is dried claim 1 , the peptizing agent is present in an amount that is 0.05 part by mass to 3 parts by mass for every 100 parts by mass of rubber within the coagulum.3. A tire manufacturing method comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'an operation in which the masterbatch manufacturing method according to is used to prepare a masterbatch;'}an operation in which at least the masterbatch and compounding ingredients are dry-mixed to obtain a mixture;an operation in which at least a vulcanizing-type compounding ingredient is kneaded into the mixture to obtain a rubber composition; andan operation in which a green tire equipped with a tire member made up of the rubber composition is made.4. The masterbatch manufacturing method according to wherein the peptizing agent is added to the coagulum during at least one operation selected from among the group consisting of the operation in which the coagulum is ...

Processes For The Removal Of Rubber From Non-Hevea Plants

Provided herein are organic solvent-based processes for the removal of rubber from non-plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter). 120-. (canceled)21. An organic solvent-based process for the removal of rubber from guayule plant matter comprising:a. utilizing a slurry containing (i) guayule plant matter, the guayule plant matter comprising bagasse, rubber and resin; (ii) at least one non-polar organic solvent; and (iii) at least one polar organic solvent, wherein the slurry contains 10-50% by weight plant matter, 50-90% by weight of (ii) and (iii) combined, and 0.5-10 weight % water from the plant matter, and wherein the at least one polar organic solvent and at least one non-polar organic solvent are present in relative weight amounts of 50-90% and 10-50%, respectively;b. removing a majority of the bagasse from the slurry to produce a miscella and a first bagasse portion wherein the miscella contains 1-10 weight % rubber and 1-10 weight % resin;c. optionally adding additional polar organic solvent, non-polar organic solvent or a combination thereof to the miscella to form a reduced viscosity miscella where any polar organic solvent and non-polar organic solvent may be the same or different than those utilized in (a) and where the amount of any additional polar organic solvent that is added is less than the amount that causes the rubber contained with the reduced viscosity miscella to coagulate;d. utilizing a centrifuge to remove 80-95 weight % of bagasse from the miscella resulting from (b) or (c) (based on the total weight of bagasse present in the miscella) to form a purified miscella and a second bagasse fraction, wherein the purified miscella contains 0.5-7 weight% rubber and 0.5-8 weight% resin, based upon the total weight of the purified miscella;e. ...

Processes For The Removal Of Rubber From Non-Hevea Plants

Provided herein are organic solvent-based processes for the removal of rubber from non-plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter). 1Hevea. A method of increasing the rubber recovery from non-plants comprising:{'i': 'Hevea', 'A. utilizing briquettes comprising (i) compressed chopped plant matter having an average size of 1.5″ or less, comprising bagasse, rubber, resin, residual water and (ii) no more than 5 weight % leaves from a non-plant, wherein the briquettes have a density that is 40-325% higher than the density of the non-compressed plant matter;'}B. subjecting the briquettes to an organic solvent extraction process whereby the briquettes are mixed with at least one polar organic solvent and at least one non-polar organic solvent to form a slurry that contains plant matter, organic solvents and 0.5-10 weight % water; andC. processing the slurry to remove bagasse and resin and recover at least 95-99% by weight of the rubber contained within the briquettes.2. The method of claim 1 , wherein the chopped plant matter is from guayule shrubs and (B) and (C) comprise:{'i': 'Hevea', 'claim-text': '50-90% by weight of (ii) and (iii) combined, and 0.5-10 weight % water from the plant matter;', 'a. preparing a slurry from (i) the briquettes wherein the briquettes contain plant matter from a non-plant comprising bagasse, rubber and resin, (ii) the least one non-polar organic solvent and (iii) the least one polar organic solvent, wherein the slurry contains 10-50% by weight plant matter from the briquettes,'}b. removing a majority of the bagasse from the slurry to produce a miscella and a first bagasse portion;c. optionally adding additional polar organic solvent, non-polar organic solvent or a combination thereof to the miscella to form a reduced viscosity miscella ...

METHOD FOR PREPARING NITRILE-BASED RUBBER

Provided are a method for preparing a nitrile-based rubber having an amount of ethylenically unsaturated nitrile of 34 wt % or less including preparing a polymer by performing a polymerization reaction by adding an ethylenically unsaturated nitrile-based monomer in two or more portions to a conjugated diene-based monomer, and coagulating the polymer by adding a sulfur-based coagulant to the polymer, and a nitrile-based rubber thus prepared having improved mechanical properties as well as excellent processability and low temperature characteristics. 1. A method for preparing a nitrile-based rubber having an amount of ethylenically unsaturated nitrile in a molecule of 34 wt % or less , the method comprising:preparing a latex including a nitrile-based rubber by performing a polymerization reaction by adding an ethylenically unsaturated nitrile-based monomer in two or more portions to a conjugated diene-based monomer; andcoagulating the latex by adding a sulfur-based coagulant to the latex.2. The method of claim 1 , wherein the ethylenically unsaturated nitrile-based monomer is added in two to four portions.3. The method of claim 1 , wherein 50 wt % to 60 wt % of a total amount of the ethylenically unsaturated nitrile-based monomer used is added at an initial stage of polymerization when a polymerization conversion rate is 0% claim 1 , 20 wt % to 30 wt % of the total amount is added when the polymerization conversion rate is 25% claim 1 , and a remaining amount is added when the polymerization conversion rate is 50%.4. The method of claim 1 , wherein 50 wt % to 60 wt % of a total amount of the ethylenically unsaturated nitrile-based monomer used is added at an initial stage of polymerization when a polymerization conversion rate is 0% claim 1 , 15 wt % to 25 wt % of the total amount is added when the polymerization conversion rate is 20% claim 1 , 10 wt % to 15 wt % of the total amount is added when the polymerization conversion rate is 40% claim 1 , and a remaining ...

Processes For Recovering Rubber From Aged Briquettes

Provided herein are organic solvent-based processes for the removal of rubber from aged briquettes made from compressed plant matter (briquettes) of non-plants. 2. The method of claim 1 , wherein the briquettes have been aged for 90-200 days after formation and prior to (b) and the rubber within the briquettes has a molecular weight of at 900 claim 1 ,000-1 claim 1 ,300 claim 1 ,000.3. The method of claim 1 , wherein the briquettes have been aged for 18-24 days after formation and prior to (b) and the rubber within the briquettes has a molecular weight of 1 claim 1 ,200 claim 1 ,000-1 claim 1 ,500 claim 1 ,000.4. The method of claim 1 , wherein the briquettes contain 80-100% by weight bark claim 1 , less than 20% by weight woody material and less than 1% by weight leaves.5. The method of any of claim 1 , wherein the briquettes contain 5 weight % or less woody material.6. The method of claim 1 , wherein the chopped plant matter is subjected to roll/flake milling prior to being compacted into the briquettes.7. The method of claim 1 , wherein the chopped plant matter has an average size of 0.062-0.5″ prior to being compressed into the briquette.8. The method of claim 1 , wherein the chopped plant matter of the briquettes is guayule plant matter.9. The method of claim 1 , wherein at least one of (b) or (d) comprises the use of a centrifuge.10. The method of claim 1 , wherein (b) comprises the use of a counter-current extractor.11. The method of claim 1 , wherein:the at least one polar organic solvent and additional polar organic solvent are selected from the group consisting of alcohols having 1 to 8 carbon atoms; ethers and esters having from 2 to 8 carbon atoms; cyclic ethers having from 4 to 8 carbon atoms; ketones having from 3 to 8 carbon atoms; and combinations thereof; andthe at least one non-polar organic solvent is selected from the group consisting of alkanes having from 4 to 9 carbon atoms; cycloalkanes and alkyl cycloalkanes having from 5 to 10 carbon atoms; ...

GUAYULE LATEX EXTRUSION

A latex processing system and method involves mixing a latex and at least one solvent blend in an extruder, in order to remove resin found in the latex and to coagulate the latex to form a coagulum. The at least one solvent blend has a first solvent configured to coagulate the latex, and a second solvent configured to swell the resulting coagulum. In particular, a series of the solvent blends may be used at different locations along a length of the extruder, and may further include distinct blends of the first solvent and the second solvent, introduced at the different locations, and having different ratios of the first solvent and the second solvent. 1. A latex processing method , comprising a step of mixing a latex and at least one solvent blend in an extruder to remove resin found in the latex and to coagulate the latex to form a coagulum , wherein the at least one solvent blend includes a first solvent configured to coagulate the latex and a second solvent configured to swell the resulting coagulum , wherein the at least one solvent blend does not dissolve the natural rubber but swells the natural rubber.2. The latex processing method of claim 1 , wherein the latex is a guayule latex.3. The latex processing method of claim 1 , wherein the at least one solvent blend includes a first solvent blend having acetone and hexane with a hexane weight fraction in the acetone from 0% to 53%.4. The latex processing method of claim 1 , wherein the at least one solvent blend includes a second solvent blend having acetone and hexane with a hexane weight fraction in the acetone from 5% to 25%.5. The latex processing method of claim 1 , wherein the at least one solvent blend includes a third solvent blend having acetone and hexane with a hexane weight fraction in the action from 10% to 20%.6. The latex processing method of claim 1 , wherein the at least one solvent blend is a series of solvent blends claim 1 , the series of solvent blends including distinct blends of the first ...

PROCESSES FOR RECOVERING RUBBER FROM NATURAL RUBBER LATEX

Processes for recovering natural rubber from an aqueous natural rubber latex that contains extractables and one or more additives and that is essentially free of lignocellulosic plant material are described. Natural rubber in the latex is separated from the water. Preferably, the amount of non-rubber extractables in the natural rubber is reduced by one or more extraction steps yielding a dried natural rubber. 1Hevea. A process for recovering rubber from an aqueous non-natural rubber latex that contains natural rubber , water , extractables , and one or more additives , and is essentially free of lignocellulosic plant material , comprising the steps of:contacting the latex with a first treatment solution whereby at least 75% of the natural rubber coagulates and a mixture containing coagulated natural rubber, water, and extractables is formed;collecting the coagulated natural rubber;contacting the coagulated natural rubber with a second treatment solution comprising at least one organic polar solvent in order to preferentially solvate the extractables; anddrying the coagulated natural rubber to create a resultant natural rubber wherein the resultant natural rubber has an amount of acetone extractables of 5% by weight or less.2. The process as claimed in claim 1 , wherein the first treatment solution comprises an organic acid or a salt thereof claim 1 , a mineral acid claim 1 , or a salt thereof claim 1 , or a combination thereof.3. The process as claimed in claim 1 , wherein the first treatment solution comprises at least one organic polar solvent claim 1 , said first and second treatment solutions being the same or different.4. The process as claimed in claim 1 , wherein the first treatment solution comprises an acid selected from the group consisting of acetic acid claim 1 , formic acid claim 1 , sulfuric acid claim 1 , aqueous aluminum sulfate claim 1 , aqueous calcium chloride claim 1 , and mixtures thereof.5. The process as claimed in claim 3 , wherein said at ...

PROCESSES FOR THE REMOVAL OF RUBBER FROM NON-HEVEA PLANTS

Provided herein are organic solvent-based processes for the removal of rubber from non-plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter). 1Hevea. A method of increasing the rubber recovery from non-plants comprising:{'i': 'Hevea', 'A. utilizing briquettes comprising (i) compressed chopped plant matter having an average size of 1.5″ or less, comprising bagasse, rubber, resin, residual water and (ii) no more than 5 weight % leaves from a non-plant, wherein the briquettes have a density that is 40-325% higher than the density of the non-compressed plant matter;'}B. subjecting the briquettes to an organic solvent extraction process whereby the briquettes are mixed with at least one polar organic solvent and at least one non-polar organic solvent to form a slurry that contains plant matter, organic solvents and 0.5-10 weight % water; andC. processing the slurry to remove bagasse and resin and recover at least 95-99% by weight of the rubber contained within the briquettes.3. The method as provided in claim 1 , wherein the briquettes contain at least one antioxidant.4. The method as provided in claim 2 , wherein at least one of steps (b) and (d) comprises the use of a centrifuge.6. The process according to claim 5 , wherein the majority of bagasse removed from the slurry in (b) is 60-95 weight % of the bagasse contained within the slurry.7. The process according to claim 5 , wherein removing of the majority of bagasse in (b) is by use of a screw press and the majority is 51-60 weight %.8. The process according to claim 5 , wherein removing of the majority of bagasse in (b) is by use of a counter-current extractor and the majority is 70-95 weight %.9. The process according to claim 5 , wherein the plant matter in the slurry has been in contact with the solvents (ii) and ( ...

RUBBERY POLYMER EXTRUSION DRYER, METHOD OF DRYING RUBBERY POLYMER, AND METHOD OF MANUFACTURING RUBBERY POLYMER

A rubbery polymer extrusion dryer includes: a cylinder; a liner provided on an inner peripheral surface of the cylinder; a screw rotatably arranged in the liner; wherein the rubbery polymer extrusion dryer conveys a rubbery polymer by the screw rotating in the liner, wherein a plurality of grooves extending in a conveying direction of the rubbery polymer are formed on an inner surface of the liner, and wherein widths of the grooves are 0.1 mm or more and 2 mm or less. 16.-. (canceled)7. A rubbery polymer extrusion dryer comprising:a cylinder;a liner provided on an inner peripheral surface of the cylinder; anda screw rotatably arranged in the liner;wherein the rubbery polymer extrusion dryer conveys a rubbery polymer by the screw rotating in the liner,wherein a plurality of grooves extending in a conveying direction of the rubbery polymer are formed on an inner surface of the liner, andwherein widths of the grooves are 0.1 mm or more and 2 mm or less.8. The rubbery polymer extrusion dryer according to claim 7 , wherein the grooves are provided at a pitch of 0.5 mm or more and 25 mm or less.9. The rubbery polymer extrusion dryer according to claim 7 , wherein cross-sectional shapes of the grooves are V-shapes.10. The rubbery polymer extrusion dryer according to claim 8 , wherein cross-sectional shapes of the grooves are V-shapes.11. The rubbery polymer extrusion dryer according to claim 7 , wherein a plurality of other grooves having widths greater than the widths of the grooves and extending in the conveying direction are further formed on the inner surface of the liner.12. A method of drying a rubbery polymer claim 7 , the method comprising:drying the rubbery polymer by using an extrusion dryer that conveys the rubbery polymer by rotating a screw in a liner provided on an inner peripheral surface of a cylinder,wherein a plurality of grooves extending in a conveying direction of the rubbery polymer are formed on an inner surface of the liner, andwherein widths of the ...

Drying oven for three-dimensional (3d) printing materials

A drying oven for 3D printing materials includes a base, an upper cover, a rotating shaft assembly and a drying assembly. The drying assembly includes a heating plate and a fan. An air outlet end of the fan faces upward, and the heating plate is arranged above the air outlet end of the fan. An accommodating cavity is provided at a middle of the base, and an air inlet communicating with outside is provided at a bottom of the accommodating cavity. The fan and the heating plate are arranged in the accommodating cavity. The rotating shaft assembly is arranged on a top surface of the base. An air outlet is arranged at an upper end of the upper cover, and the upper cover is configured to cover the base.

RUBBER COMPOSITION FOR TIRES AND PNEUMATIC TIRE

Provided are a rubber composition for tires that shows a balanced improvement in properties such as fuel economy, processability, heat aging resistance, abrasion resistance, wet-grip performance, performance on snow and ice, and handling stability, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing: a highly purified, modified natural rubber having a pH adjusted to 2-7; carbon black and/or a white filler; and a silane coupling agent represented by the following Formula (S1): 112.-. (canceled)14. The rubber composition for tires according to claim 13 ,wherein the modified natural rubber is obtained by removing non-rubber components in natural rubber, followed by treatment with an acidic compound, andthe modified natural rubber has a pH of 2 to 7.15. The rubber composition for tires according to claim 13 ,wherein the modified natural rubber is obtained by washing a saponified natural rubber latex and treating the washed saponified natural rubber latex with an acidic compound, andthe modified natural rubber has a pH of 2 to 7.16. The rubber composition for tires according to claim 13 ,wherein the modified natural rubber is obtained by washing a deproteinized natural rubber latex and treating the washed deproteinized natural rubber latex with an acidic compound, andthe modified natural rubber has a pH of 2 to 7.17. The rubber composition for tires according to claim 13 ,wherein the modified natural rubber has a nitrogen content of 0.15% by mass or less.18. The rubber composition for tires according to claim 13 ,wherein the pH is determined by cutting the modified natural rubber into pieces at most 2 mm square on each side, immersing the pieces in distilled water, irradiating the immersed pieces with microwaves for extraction at 90° C. for 15 minutes, and measuring the resulting immersion water with a pH meter.19. The rubber composition for tires according to claim 13 , {'br': None, 'Heat ...

RUBBER COMPOSITION FOR TIRES AND PNEUMATIC TIRE

Provided are a rubber composition for tires that shows a balanced improvement in properties such as fuel economy, processability, heat aging resistance, abrasion resistance, wet-grip performance, performance on snow and ice, and handling stability, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing: a highly purified, modified natural rubber having a pH adjusted to 2 to 7, and a silica having a CTAB specific surface area of 180 m/g or more and a BET specific surface area of 185 m/g or more, and also relates to a pneumatic tire formed from the rubber composition. 112-. (canceled)13. A rubber composition for tires , comprising:a modified natural rubber having a phosphorus content of 200 ppm or less and further having a pH adjusted to 2 to 7, and{'sup': 2', '2, 'a silica having a CTAB specific surface area of 180 m/g or more and a BET specific surface area of 185 m/g or more.'}14. The rubber composition for tires according to claim 13 ,wherein the modified natural rubber is obtained by removing non-rubber components in natural rubber, followed by treatment with an acidic compound, andthe modified natural rubber has a pH of 2 to 7.15. The rubber composition for tires according to claim 13 ,wherein the modified natural rubber is obtained by washing a saponified natural rubber latex and treating the washed saponified natural rubber latex with an acidic compound, andthe modified natural rubber has a pH of 2 to 7.16. The rubber composition for tires according to claim 13 ,wherein the modified natural rubber is obtained by washing a deproteinized natural rubber latex and treating the washed deproteinized natural rubber latex with an acidic compound, andthe modified natural rubber has a pH of 2 to 7.17. The rubber composition for tires according to claim 13 ,wherein the modified natural rubber has a nitrogen content of 0.15% by mass or less.18. The rubber composition for tires according to claim ...

RUBBER COMPOSITION FOR TIRES AND PNEUMATIC TIRE

Provided are a rubber composition for tires that shows a balanced improvement in properties such as fuel economy, processability, heat aging resistance, abrasion resistance, wet-grip performance, performance on snow and ice, and handling stability, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing: a highly purified, modified natural rubber having a pH adjusted to 2-7; carbon black and/or a white filler; and a styrene-butadiene rubber having a styrene content of 30% by mass or more, and also relates to a pneumatic tire formed from the rubber composition. 113-. (canceled)14. A rubber composition for tires , comprising:a modified natural rubber having a phosphorus content of 200 ppm or less and further having a pH adjusted to 2 to 7;at least one of carbon black or a white filler; anda styrene-butadiene rubber having a styrene content of 30% by mass or more.15. The rubber composition for tires according to claim 14 ,wherein the modified natural rubber is obtained by removing non-rubber components in natural rubber, followed by treatment with an acidic compound, andthe modified natural rubber has a pH of 2 to 7.16. The rubber composition for tires according to claim 14 ,wherein the modified natural rubber is obtained by washing a saponified natural rubber latex and treating the washed saponified natural rubber latex with an acidic compound, andthe modified natural rubber has a pH of 2 to 7.17. The rubber composition for tires according to claim 14 ,wherein the modified natural rubber is obtained by washing a deproteinized natural rubber latex and treating the washed deproteinized natural rubber latex with an acidic compound, andthe modified natural rubber has a pH of 2 to 7.18. The rubber composition for tires according to claim 14 ,wherein the modified natural rubber has a nitrogen content of 0.15% by mass or less.19. The rubber composition for tires according to claim 14 ,wherein the pH ...

Processes For Recovering Rubber From Aged Briquettes

Provided herein are organic solvent-based processes for the removal of rubber from aged briquettes made from compressed plant matter (briquettes) of non-plants. 231. The method of claim , wherein:the at least one polar organic solvent and additional polar organic solvent are selected from the group consisting of alcohols having 1 to 8 carbon atoms; ethers and esters having from 2 to 8 carbon atoms; cyclic ethers having from 4 to 8 carbon atoms; ketones having from 3 to 8 carbon atoms; and combinations thereof; andthe at least one non-polar organic solvent is selected from the group consisting of alkanes having from 4 to 9 carbon atoms; cycloalkanes and alkyl cycloalkanes having from 5 to 10 carbon atoms; aromatics and alkyl substituted aromatics having from 6 to 12 carbon atoms; and combinations thereof.3. The method of claim 1 , wherein the at least one polar organic solvent and additional polar organic solvent comprise ketones having 3 carbon atoms claim 1 , and the at least one non-polar organic solvent comprises alkanes having 6 carbon atoms claim 1 , cycloalkanes having 6 carbon atoms claim 1 , and combinations thereof.4. The method of claim 1 , wherein the slurry in step (a) contains 25-50% by weight of material from the briquettes and 50-75% by weight non-polar organic solvent and polar organic solvent.5. The method of claim 1 , wherein the (i) at least one non-polar organic solvent of (b); and the (ii) at least one polar organic solvent of (b) are present in relative weight amounts of 50-90% and 10-50% claim 1 , respectively.6. The method of claim 1 , wherein at least 90% by weight of undersize material of less than 595 microns (30 mesh) has been removed from the chopped guayule plant matter prior to forming the briquette.7. The method of claim 1 , wherein the amount of bagasse that is removed from the slurry in (c) is 60-95% by weight of the bagasse contained within the slurry.8. The method of claim 1 , wherein at least one of (c) or (e) comprises the use ...

PROCESS FOR DRYING A NATURAL RUBBER

A process for drying a natural rubber starting from a wet natural rubber coagulum is provided. In a first step, the wet natural rubber coagulum is compressed at a temperature ranging from 185° C. to 210° C., then in a second step subjected to a flash adiabatic expansion at a differential pressure of at least 100 bar. Optionally supplemented by convective drying or by repeating the first and second steps, the process leads to a dry natural rubber having a nitrogen content of at most 0.3%. 1. A process for drying a natural rubber , which comprises the following steps:a) providing a wet natural rubber coagulum,b) compressing the coagulum at a temperature ranging from 185° C. to 210° C.,c) subjecting the compressed coagulum to a flash adiabatic expansion at a differential pressure of at least 100 bar,d) where appropriate, subjecting the coagulum resulting from step c) to convective drying or to one or more repetitions of the sequence of steps b) and c).2. A process according to claim 1 , in which the temperature is from 190° C. to 210° C. in step b).3. A process according to claim 1 , in which the differential pressure is at least 150 bar in step c).4. A process according to claim 1 , in which the coagulum is at atmospheric pressure at the end of expansion.5. A process according to claim 1 , in which step d) is carried out.6. A process according to claim 5 , in which step d) is convective drying.7. A process according to claim 6 , in which the convective drying is carried out under air at a temperature ranging from 110° C. to 130° C.8. A process according to claim 1 , in which the coagulum used in step a) has a water content of greater than 12% by weight.9. A process according to claim 1 , in which the coagulum used in step a) has a water content of greater than 5% by weight.10. A process according to claim 1 , in which the coagulum used in step a) has a water content ranging from 3 to 5% by weight.11. A process according to claim 1 , in which the coagulum used in step ...

MAKING LOW-SODIUM RESIN

Provided is method of treating a collection of resin beads (a) comprising the steps of 1. A method of treating a collection of resin beads (a) comprising the steps of wherein the resin beads (a) comprise one or more vinyl polymers having quaternary ammonium groups;', 'wherein 90 mole % or more of the quaternary ammonium groups are each associated with a chloride anion;, '(a) providing the collection of resin beads (a),'}{'sub': n', 'p, 'claim-text': wherein M is a cation of charge (+i) that contains no metal atom, alkali metal atom, or alkaline earth atom;', 'wherein X is an anion of charge (−j), wherein X is selected from the group consisting of carbonate, bicarbonate, dihydrogen phosphate, formate, acetate, and aminoacetate;', 'and wherein (n·i)=(p·j)., '(b) bringing the collection of resin beads (a) into contact with an aqueous solution (b) comprising one or more dissolved (M)Xto form a mixture (b),'}(c) separating water and compounds dissolved in the water from the mixture (b), to form resin beads (c) and waste solution (bw);{'sub': 'p', 'claim-text': wherein M3 is a cation of charge (+k) that contains no metal atom, alkali metal atom, or alkaline earth atom;', 'and wherein p=k., '(d) bringing resin beads (c) into contact with an aqueous solution (c) comprising dissolved (M3)(OH), to form a mixture (d)'}2. The method of claim 1 , comprising the additional step (e) of separating water and compounds dissolved in the water from the mixture (d) claim 1 , to form resin beads (e) and waste solution (ew).3. The method of claim 2 , wherein the one or more vinyl polymers comprise one or more vinyl aromatic polymers.5. The method of claim 2 , wherein claim 2 , after step (e) claim 2 , the sodium content of resin (e) is 100 ppb or less claim 2 , by weight based on the total weight of resin (e).6. The method of claim 1 , wherein M is ammonium claim 1 , trialkyl ammonium claim 1 , or a mixture thereof.7. The method of claim 1 , wherein M is ammonium.8. The method of claim 1 ...

Processes For The Removal Of Rubber From Non-Hevea Plants

Provided herein are organic solvent-based processes for the removal of rubber from non-plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter). 1Hevea. A method of increasing the rubber recovery from non-plants comprising:{'i': 'Hevea', 'A. utilizing briquettes comprising (i) compressed chopped plant matter having an average size of 1.5″ or less, comprising bagasse, rubber, resin, residual water and (ii) no more than 5 weight % leaves from a non-plant, wherein the briquettes have a density that is 40-325% higher than the density of the non-compressed plant matter;'}B. subjecting the briquettes to an organic solvent extraction process whereby the briquettes are mixed with at least one polar organic solvent and at least one non-polar organic solvent to form a slurry that contains plant matter, organic solvents and 0.5-10 weight % water; andC. processing the slurry to remove bagasse and resin and recover at least 95-99% by weight of the rubber contained within the briquettes.2. The method according to claim 1 , wherein the chopped plant matter is from guayule shrubs and (B) and (C) comprise:{'i': 'Hevea', 'a. preparing a slurry from (i) the briquettes wherein the briquettes contain plant matter from a non-plant comprising bagasse, rubber and resin, (ii) the least one non-polar organic solvent and (iii) the least one polar organic solvent, wherein the slurry contains 10-50% by weight plant matter from the briquettes, 50-90% by weight of (ii) and (iii) combined, and 0.5-10 weight % water from the plant matter;'}b. removing a majority of the bagasse from the slurry to produce a miscella and a first bagasse portion;c. optionally adding additional polar organic solvent, non-polar organic solvent or a combination thereof to the miscella to form a reduced viscosity miscella where ...

Method of removing volatiles from an elastomer

Volatile hydrocarbons are removed from an elastomer by mechanically working the elastomer in an extruder to increase its temperature, admixing an inert gas or water through at least one inlet, allowing vapors to flash from the mixture through at least one vented section in the extruder and discharging the elastomer from the end of the extruder at a lower content of volatile hydrocarbons. Oil, antioxidant and other elastomer compounding materials can optionally be added during the operation.

Method of increasing the stiffness of high density polyethylene

Elastomer extrusion drying with gas injection

Extrusion drying of wet rubber crumb particles in the last phase of the overall elastomer drying process is improved through use of gas injected into the compression zone of an extruder thereby providing an improved efficiency in the explosion drying process. Rubber particles having a very low moisture content, such as less than 0.2% by weight, frequently less than 0.1%, are produced.

Solids transfer and storage system

Process for producing homogeneous phase melt of polyacrylonitrile

A process for producing a homogeneous phase melt of polyacrylonitrile suitable for extrusion molding and melt spinning, by the steps of preparing polymer/water crumb containing 30-60 wt % of polyacrylonitrile and dewatering the crumb in a molten state with stirring at temperatures above 140° C. and at pressures above autogenous pressure until the concentration of the polymer in the crumb exceeds 70% by weight.

Method for producing improved acrylonitrile polymer homogeneous phase melt

一种环保型改性pvc生产工艺

本发明涉及环保型改性PVC生产技术领域，特别涉及一种环保型改性PVC生产工艺，包括固定台、干燥室、干燥机构、搅拌机构和出料机构。本发明采用的搅拌机构可对盛放桶内的改性PVC颗粒进行搅拌，在搅拌的同时将热风均匀的吹入改性PVC颗粒内，从而使得改性PVC颗粒对热风之间的接触面增加，避免出现改性PVC颗粒局部受热干燥的现象，同时提高了改性PVC颗粒的质量，同时通过搅拌叶片对改性PVC颗粒的搅拌，使得改性PVC颗粒中蒸发的水蒸气流动速度加快，提高了改性PVC颗粒的干燥速度，避免了水蒸气凝结之后再次掉落到改性PVC颗粒的问题。

一种色母粒加工用干燥装置

本发明提供了一种色母粒加工用干燥装置，属于色母粒加工技术领域，包括封装部、加热组件、色母粒转移部、拨料部、第一驱动部以及第二驱动部，所述加热组件设置在所述封装部内壁，所述色母粒转移部设置在所述封装部内部，且色母粒转移部外侧设有若干组色母粒存放区，每组所述色母粒存放区内均设有所述拨料部，所述第二驱动部用于带动所述色母粒转移部转动，以带动若干所述色母粒存放区依次移动至所述加热组件一侧。本发明实施例相较于现有技术，能够实现色母粒的高效连续干燥，具有干燥效率高以及干燥效果好的优点。

一种色母粒加工用干燥装置

本发明提供了一种色母粒加工用干燥装置，属于色母粒加工技术领域，包括封装部、加热组件、色母粒转移部、拨料部、第一驱动部以及第二驱动部，所述加热组件设置在所述封装部内壁，所述色母粒转移部设置在所述封装部内部，且色母粒转移部外侧设有若干组色母粒存放区，每组所述色母粒存放区内均设有所述拨料部，所述第二驱动部用于带动所述色母粒转移部转动，以带动若干所述色母粒存放区依次移动至所述加热组件一侧。本发明实施例相较于现有技术，能够实现色母粒的高效连续干燥，具有干燥效率高以及干燥效果好的优点。

脱去蛋白质的天然橡胶及生产它的方法

本文公开一种基本上不含任何蛋白质的脱蛋白质天然橡胶和一种用来生产该橡胶的方法、包括用一种蛋白酶和一种特定的表面活性剂或特定的表面活性剂的结合处理一种胶乳然后分离橡胶颗粒。本文也公开了一种提高天然橡胶生胶强度的方法和一种降低天然橡胶生胶强度的方法。此处，本文公开了一种防止由天然橡胶引起的过敏的方式。

Method of removing bleeding component and/or blooming component

Process for washing and drying coagula of rubber and similar materials

Myoglobin-containing food freshness deterioration suppressing material and use thereof

An object of the present invention is to provide a simple measure which can suppress freshness deterioration of a myoglobin-containing food. The present invention relates to a myoglobin-containing food freshness deterioration suppressing material for suppressing freshness deterioration of a myoglobin-containing food, comprising: a substrate comprising a polymer; and an antioxidant with which at least a part of the surface of the substrate is covered, and/or an antioxidant supported in a layer forming at least a part of the surface of the substrate; wherein 0.01 g/m2 or more and 20 g/m2 or less of the antioxidant is included relative to the area of the part in which the antioxidant is present, of the surface of the substrate.

Myoglobin-containing food freshness deterioration suppressing material and use thereof

An object of the present invention is to provide a simple measure which can suppress freshness deterioration of a myoglobin-containing food. The present invention relates to a myoglobin-containing food freshness deterioration suppressing material for suppressing freshness deterioration of a myoglobin-containing food, comprising: a substrate comprising a polymer; and an antioxidant with which at least a part of the surface of the substrate is covered, and/or an antioxidant supported in a layer forming at least a part of the surface of the substrate; wherein 0.01 g/m2 or more and 20 g/m2 or less of the antioxidant is included relative to the area of the part in which the antioxidant is present, of the surface of the substrate.

Method for production of profile from pvc for window and door units containing silver ions with antibacterial properties

Изобретение относится к области строительства и направлено на получение полимерного профиля для оконных и дверных блоков с устойчивыми антибактериальными свойствами. Согласно способу изготовления профиля из ПВХ для оконных и дверных блоков, на установке смешения осуществляют смешивание сухих компонентов композиции. Полученную сухую смесь направляют на вибросито для просева, после чего сухую смесь выдерживают в течение не менее 1 суток и подают на экструдер. Экструзию сухой смеси осуществляют с одновременным добавлением серебросодержащего вещества. 6 з.п. ф-лы, 1 табл., 3 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 508 197 (13) C1 (51) МПК B29B B29C B29B B29C C08L 7/00 (2006.01) 47/00 (2006.01) 13/10 (2006.01) 70/00 (2006.01) 27/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2012130616/05, 19.07.2012 (24) Дата начала отсчета срока действия патента: 19.07.2012 Приоритет(ы): (22) Дата подачи заявки: 19.07.2012 (72) Автор(ы): Ремизов Анатолий Владимирович (RU) (73) Патентообладатель(и): Общество с ограниченной ответственностью "СервисЦентр" (RU) R U (45) Опубликовано: 27.02.2014 Бюл. № 6 C 1 2 5 0 8 1 9 7 R U C 1 Адрес для переписки: 109456, Москва, Рязанский пр-кт, 75, корп.4, 1-я башня, 7 этаж, ООО "Правовая поддержка", пат.пов. М.Н. Протасенко, рег. №1136 (54) СПОСОБ ИЗГОТОВЛЕНИЯ ПРОФИЛЯ ИЗ ПВХ ДЛЯ ОКОННЫХ И ДВЕРНЫХ БЛОКОВ С СОДЕРЖАНИЕМ ИОНОВ СЕРЕБРА, ОБЛАДАЮЩИХ АНТИБАКТЕРИАЛЬНЫМИ СВОЙСТВАМИ (57) Реферат: Изобретение относится к области строительства и направлено на получение полимерного профиля для оконных и дверных блоков с устойчивыми антибактериальными свойствами. Согласно способу изготовления профиля из ПВХ для оконных и дверных блоков, на установке смешения осуществляют смешивание сухих компонентов композиции. Полученную сухую смесь направляют на вибросито для просева, после чего сухую смесь выдерживают в течение не менее 1 суток и подают на экструдер. Экструзию сухой смеси осуществляют с ...

A kind of method that the processing of PLA dixie cup is dehumidified with PLA crystallizing and drying

本发明涉及PLA加工技术领域，尤其为一种PLA纸杯加工用PLA结晶干燥除湿的方法。本发明中，通过使用烘干温度为50℃‑60℃对PLA结晶进行烘干，且将烘干后的PLA结晶进行冷却处理，在冷却处理过程中，利用冷却冷风吹起PLA结晶中携带的粉尘后利用吸尘器和旋风除尘器将粉尘清除，本方法，采用低温干燥除湿的方法进行除湿，整个除湿过程在一个循环、封闭的环境中完成，粉尘会留在分离器，无粉尘污染而且用电量小，具有环保、节约能源的优点。

Drying of synthetic resin pellets

Drying of synthetic resin pellets

Recovery of rubberlike polymer from a latex

Method of processing synthetic rubber latex

Polymers and method of making the same

Automatic feeding device with dehumidifying function for synthetic resin material

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Apparatus and method for manufacturing a thin blown film

PURPOSE: A thin blown film manufacturing apparatus and method are provided to improve the flow of raw materials and enhance viscosity by controlling the temperature of a cylinder of an extruder according to section. CONSTITUTION: A thin blown film manufacturing apparatus comprises a mixer(100), a hopper(200), an extruder(300), a heater, and a temperature controller. The mixer has a mixing screw for mixing raw materials. The hopper receives the mixed raw materials and has a heat exchanger through which moisture of exterior air is removed. The dehumidified exterior air is used for removing moisture from a dehumidifying agent absorbing moisture from the raw materials so that the dehumidifying agent is recycled. The extruder has a cylinder which is divided into five or more sections in a longitudinal direction. The heater and the temperature controller are installed in each section of the cylinder to individually control the temperature.

Comprehensive drying equipment for plastic particles

本发明公开了一种塑料颗粒的综合干燥设备，涉及塑料颗粒生产领域，包括干燥机外壳、视频监控装置和控制器，所述干燥机外壳的一侧设置有集水箱，所述集水箱的内部安装有抽水泵，所述圆形管上安装有喷头，所述控制器与抽水泵、蒸汽流量调节阀、温度传感器、无线传输模块、视频监控装置和干燥量控制装置电性连接，本发明通过将积存水导入集水箱收集，方便后期对干燥机外壳内部设施进行清洁，既解决积存水影响导热的问题，又能实现废水再利用，通过加热风机，保证干燥机外壳内的空气流通，提高烘干效率，无线传输模块将所有的干燥参数传输给移动终端设备，工作人员可以通过移动终端远程控制和观察，方便工作人员工作，提高工作效率。

Spiral automatic feeding drying device of injection molding machine

本发明公开了注塑机螺旋式自动上料干燥装置，包括机架、料斗、料筒和料筒内的螺杆，所述料斗设于机架内，所述料筒的一端位于机架内部且与机架转动连接，所述料筒上设有对料筒内部原料进行干燥的干燥装置，所述料筒的顶部一端设有出料口，所述料筒侧壁一处设有可防止原料漏出的排气装置，此注塑机螺旋式自动上料干燥装置，通过在料筒上设有干燥装置，使从料斗进入料筒内部的原料在料筒内能够一边进行输送一边进行干燥处理，且料筒的侧壁一处设有可防止原料漏出的排气装置，既解决了料筒内部水蒸气的问题也防止了通气过程中原料漏出情况的出现。

Improved process for preparing acrylonitrile-based polymer homogeneous melt

본 발명은 용융방사 혹은 용융압출성형에 적합한 아클릴로니트릴계 중합체 균일상 용융물을 제조하는 방법을 제공함에 있다. 아크릴로니트릴계 중합체 30~60중량% 함수크럼을 140℃ 이상의 온도로, 또한 자생압 이상의 가압하에 용융 상태로 제수하고 그 중합체 농도 70중량% 이상까지 농축함으로써 달성된다.

Preparation of synthetic resin composition using compressed and ground chaff

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Process for drying acrylamide polymers

METHOD FOR PRODUCING PVC PROFILE FOR WINDOW AND DOOR BLOCKS WITH THE CONTENT OF SILVER IONS WITH ANTIBACTERIAL PROPERTIES

1. Способ изготовления профиля из ПВХ для оконных и дверных блоков, характеризующийся тем, что на установке смешения осуществляют смешивание сухих компонентов композиции, затем полученную сухую смесь направляют на вибросито для просева, после чего сухую смесь выдерживают в течение не менее 1 суток и подают на экструдер, при этом экструзию сухой смеси осуществляют с одновременным добавлением серебросодержащего вещества.2. Способ по п.1, характеризующийся тем, что на экструдере под воздействием механических нагрузок и температуры происходит смешение сухой смеси с серебросодержащем веществом при помощи шнеков экструдера и переход ее в расплавленную массу, которая выходит через фильеру для придания формы профилю, затем массу подают на калибраторы, где под воздействием вакуума и холодной воды массу охлаждают и придают геометрические формы готового профиля.3. Способ по п.1, характеризующийся тем, что установка смешения состоит из смесителя горячего смешения, обеспечивающего нагрев композиции до температуры 90-140°С, и смесителя холодного смешения, обеспечивающего охлаждение до 20-90°С.4. Способ по п.2, характеризующийся тем, что дополнительно после калибраторов профиль в виде непрерывной ленты направляют через охлаждающие ванны, где под воздействием холодной воды с температурой 10-14°С происходит окончательное охлаждение, затем охлажденный профиль проходит на станцию приклеивания самоклеящейся защитной пленки и отрезное устройство, на котором профиль нарезают на хлысты, после этого нарезанные хлысты профиля укладывают на паллету.5. Способ по п.4, характеризующийся тем, что массу направляют через охлаждающие ванны с РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2012 130 616 A (51) МПК B29B 7/00 (2006.01) B29C 47/00 (2006.01) B29B 13/10 (2006.01) B29C 70/00 (2006.01) C08L 27/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012130616/05, 19.07.2012 (71) Заявитель(и): Общество с ограниченной ответственностью "СервисЦентр" ...

Dehumidifier of plastic resin for hopper injection machine

본 발명은 사출성형기 호퍼의 수지 원료를 건조하는 공기를 필터에 의해 먼지를 제거한 후, 제습기, 가열기를 차례로 거쳐 제습, 가열 건조된 상태로 다시 호퍼로 순환 공급하여 수지 원료를 건조하는 건조시스템의 제습장치에 관한 것으로서, 특히 상기 제습기는, 원통형 하우징(10) 내부에 상,하 원형 지지판(21)(22) 사이로 원주상에 다수의 타공(26)이 형성되고 내부에 수분흡수재(30)가 충진되는 원통형 통체(25)를 상하로 연통되게 다수 설치 구성하되, 상기 원통형 하우징(10)의 내부에는 상하 등분 위치로 원통형 통체(25)의 외측을 따라 반원 형상의 격판(15)(15')을 좌우 대향되게 삽입하여 원통형 통체 외부로 공기가 지그재그 안내되는 안내로(12)를 형성하여 제공하므로서, 순환 공기의 체류시간 및 수분흡수재와의 접촉 증대로 제습효과를 극대화하여 수지 원료의 건조 효율을 우수하게 제공하는데 그 특징이 있다. The present invention removes dust from the air for drying the resin raw material of the injection molding machine hopper by a filter, and then dehumidifies the drying system by drying the resin raw material by circulating and supplying it to the hopper again in a dehumidified and heat-dried state through a dehumidifier and a heater. In particular, the dehumidifier is a plurality of perforations (26) formed on the circumference between the upper and lower circular support plates (21, 22) inside the cylindrical housing (10) and filled with the water absorbing material (30) therein. The cylindrical cylindrical body 25 is configured to be in communication with each other up and down, but the inside of the cylindrical housing 10 has a semi-circular diaphragm (15, 15 ') along the outside of the cylindrical cylindrical body 25 in the vertically divided position Inserted opposite to the left and right to form a guide path 12 to guide the air zigzag to the outside of the cylindrical cylinder, thereby maximizing the dehumidification effect by increasing the residence time of the circulating air and the contact with the water absorbing material There are the features to provide the best drying efficiency of the raw material. 사출성형기, 호퍼, 수지 원료, 건조시스템, 제습장치, 수분흡수재 Injection molding machine, hopper, resin raw material, drying system, dehumidifier, moisture absorbent

METHOD FOR INCREASING THE CONTENT OF EXTRACTED RUBBER IN THE MATERIAL OF PLANT GUAULA

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 140 653 A (51) МПК C08C 1/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017140653, 18.06.2013 (71) Заявитель(и): БРИДЖСТОУН КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ХУАН Ини (US), СМЕЙЛ Марк У. (US) (43) Дата публикации заявки: 12.02.2019 Бюл. № R U 18.06.2012 US 61/661,033 (62) Номер и дата подачи первоначальной заявки, из которой данная заявка выделена: 2015101287 16.01.2015 05 R U (57) Формула изобретения 1. Способ повышения содержания экстрагируемого каучука в материале растения гуаюлы без чрезмерного повышения содержания экстрагируемой смолы, включающий: использование некоторого количества измельченного материала растения гуаюлы со средней длиной от ½” до 4” и максимальным содержанием влаги 15 масс. % и обработку измельченного материала растения гуаюлы в молотковой мельнице с использованием калибра сита меньше ½” и больше чем или равного 3/16”, в результате чего получают некоторое количество перемолотого материала растения гуаюлы с максимальным содержанием влаги 15 масс. %, содержание экстрагируемого каучука в котором по меньшей мере на 30% выше, чем в измельченном материале растения гуаюлы перед перемолкой. 2. Способ по п. 1, в котором перемолотый материал растения гуаюлы имеет содержание экстрагируемого каучука, которое по меньшей мере на 40% выше, чем в измельченном материале растения гуаюлы перед перемолкой. 3. Способ по п. 1, в котором содержание экстрагируемой смолы в перемолотом материале растения гуаюлы не больше, чем в 3 раза выше содержания экстрагируемой смолы в измельченном материале растения гуаюлы перед перемолкой. 4. Способ по п. 1, в котором содержание экстрагируемой смолы в перемолотом материале растения гуаюлы не больше, чем в 2 раза выше содержания экстрагируемой смолы в измельченном материале растения гуаюлы перед перемолкой. 5. Способ по любому из пп. 1-4, в котором в молотковой мельнице используют ...

Drying device for synthetic resin material and so on

Processes for the removal of rubber from TKS plant matter

Provided herein are organic solvent-based processes for the removal of rubber from non- Hevea plants such as TKS. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).

Processes for the removal of rubber from non-Hevea plants

Provided herein are organic solvent-based processes for the removal of rubber from non- Hevea plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).

Methods for increasing the extractable rubber content of non-Hevea plant matter

Methods for increasing the extractable rubber content of non- Hevea plant matter that entail the use of particular forms of hammer milling and/or roller milling in an increase in the amount of rubber that can be extracted from the resulting plant matter such as by organic solvent extraction or aqueous extraction are provided. In certain embodiments, the methods are for increasing the extractable rubber content of guayule plant matter, and entail the use of particular forms of hammer milling in combination with roller milling and flaking to increase the amount of rubber that can be extracted from the guayule plant matter such as by organic solvent extraction or aqueous extraction.

Processes for the removal of rubber from non-hevea plants

Provided herein are organic solvent-based processes for the removal of rubber from non- Hevea plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).

Processes for recovering rubber from aged briquettes

Provided herein are organic solvent-based processes for the removal of rubber from aged briquettes made from compressed plant matter (briquettes) of non-Hevea plants.

Processes for recovering rubber from aged briquettes and aged briquettes containing plant matter from non-Hevea plants

Provided herein are organic solvent-based processes for the removal of rubber from aged briquettes made from compressed plant matter (briquettes) of non- Hevea plants. Also provided are aged briquettes made from the compressed plant matter of non- Hevea plants where the briquettes have been aged for either various time period after formation and the rubber within the briquette has retained its a molecular weight to within a specified range.

Processes for the removal of rubber from non-hevea plants

Provided herein are organic solvent-based processes for the removal of rubber from non- Hevea plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).

Processes for the removal of rubber from non-hevea plants

Provided herein are organic solvent-based processes for the removal of rubber from non- Hevea plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).

Processes for recovering rubber from aged briquettes

Provided herein are organic solvent-based processes for the removal of rubber from aged briquettes made from compressed plant matter (briquettes) of non- Hevea plants.

Process for the removal of rubber from TKS plant matter

Provided herein are organic solvent-based processes for the removal of rubber from non-Hevea plants such as TKS. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).

Methods for elevating or lowering the green strength of a na

PURPOSE: A deproteinized natural rubber, its preparation method, a method for elevating or lowering the green strength of a natural rubber, a composition for deproteinizing a natural rubber and a natural rubber product containing the deproteinized natural rubber are provided, to prevent the allergy induced by a natural rubber. CONSTITUTION: The deproteinized natural rubber contains 0.02 % or less of nitrogen, shows no absorption at a wavelength of 3,280 cm¬-1, and is free from proteins. The method comprises the steps of treating latex with a protease, an anionic surfactant and a nonionic surfactant; and separating rubber particles. Preferably the protease is an alkaline protease; the anionic surfactant is selected from the group consisting of a carboxylic acid surfactant, a sulfonic acid surfactant, a sulfate surfactant and a phosphate surfactant; and the nonionic surfactant is selected from the group consisting of a polyoxyalkylene ether surfactant, a polyoxyalkylene ester surfactant, a sugar fatty acid ester surfactant and an alkyl polyglycoside surfactant.

A material dryer with a near infrared lamp

본 고안은 사출성형, 압출성형과 같은 각종 성형가공의 소재로 사용되는 나일론을 비롯한 합성수지 소재를 건조하여 수분을 제거하는 근적외선을 이용한 소재 건조기를 제공한다. 이와 같은 근적외선을 이용한 소재 건조기는 소재가 투입되는 호퍼 중앙에 설치된 근적외선 램프와, 호퍼 내벽에 형성된 열복사율이 높은 재질의 반사판에 의해 호퍼 내부에 열이 균일하게 분포되면서 호퍼 내부의 합성수지 소재를 골고루 건조시킴에 따라 합성수지 소재가 건조과정에서 손상되지 않게 되고, 더불어 합성수지 소재의 건조효율이 증대된다. 또한, 합성수지 소재의 건조 수단으로 근적외선 램프 및 반사판이 사용됨으로써 구성이 단순화되어 소재 건조기의 제조 및 유지보수가 간편하게 이루어지고, 제조원가 및 전력비용이 절감된다. 본 고안에 따른 근적외선을 이용한 소재 건조기는 호퍼 내부 중앙에 설치되어 열을 방사하게 되는 근적외선 램프와; 호퍼의 내벽에 형성되어 근적외선 램프의 열을 호퍼 내부로 반사시키는 반사판 및; 합성수지 소재가 주입되는 주입구 및 건조된 합성수지 소재가 배출되는 배출구가 형성되어 있는 호퍼를 포함하여 이루어진다. The present invention provides a material dryer using a near infrared ray to remove moisture by drying a synthetic resin material, including nylon used as a material of various molding processes such as injection molding, extrusion molding. The material dryer using the near-infrared light evenly distributes the synthetic resin material inside the hopper by uniformly distributing the heat inside the hopper by the near-infrared lamp installed in the center of the hopper to which the material is injected and the reflective plate of the high heat radiation rate formed on the inner wall of the hopper As a result, the synthetic resin material is not damaged during the drying process, and the drying efficiency of the synthetic resin material is increased. In addition, by using a near-infrared lamp and a reflector as a drying means for the synthetic resin material, the configuration is simplified, and thus the manufacturing and maintenance of the material dryer is simplified, and manufacturing cost and power cost are reduced. The material dryer using a near infrared ray according to the present invention is installed in the center of the hopper and the near infrared lamp to radiate heat; A reflection plate formed on an inner wall of the hopper and reflecting heat of a near infrared lamp into the hopper; It comprises a hopper which is formed with an injection port through which the synthetic resin material is injected and ...

Dry apparatus for pullout molding for manufacturing incombustible fiberglass reinforced plastic

The present invention relates to a dry apparatus for the pullout molding of incombustible fiber reinforced plastics capable of removing water and gas mixed in a flame resistant raw resin in a process of manufacturing incombustible fiber reinforced plastics with a pullout molding method by impregnating the flame resistant raw resin into flame resistant fibers, and improving efficiency with a method of circulating hot air. The dry apparatus for the pullout molding of incombustible fiber reinforced plastics according to the present invention comprises: a main body which is equipped with a chamber in which flame resistant fibers impregnated with a flame resistant raw resin are dried while being passed; a heater which is installed in the inner space of the chamber and irradiates heat to the inner side of the chamber; and a hot air circulation unit which discharges heated humid air of the inner space of the chamber to the outside, removes humidity from the air and supplies the air to the inner space of the chamber again.

A kind of plastic cement drying unit

本发明公开了一种塑胶烘干装置，涉及烘干设备，包括烘干箱，烘干箱通过支架支撑在水平面，烘干箱的上端设有与烘干箱内部连通的进料斗，烘干箱的下端的外壁上设有电加热器，烘干箱的内部设有加热管，烘干箱的底部设有弧形面，弧形面的中心位置设有下料口，烘干箱内从上至下依次设有第一导料板、第二导料板和第三导料板，第一导料板、第二导料板以及第三导料板的上端面均设有条形的凸起，本发明结构简单，设备成本较低，在烘干过程中，可以对表面覆有水分的塑胶颗粒进行均匀、高效的烘干，且不会对塑胶颗粒造成损坏，保证了烘干过程中塑胶颗粒的质量。

Method for increasing extractable rubber content of non-hevea plant matter

本发明提供了用于增加非三叶胶植物物质的可提取橡胶含量的方法，所述方法允许使用特定形式的锤磨和/或辊磨，以增加例如通过有机溶剂提取或水性提取可从所得的植物物质中提取的橡胶量。在某些实施例中，该方法用于增加银胶菊植物物质的可提取橡胶含量，并且允许使用与辊磨和刨片组合的特定形式的锤磨，以增加例如通过有机溶剂提取或水性提取可从银胶菊植物物质中提取的橡胶量。

Methods of increasing content of rubber to be extracted in plant material other than hevea

FIELD: agriculture. SUBSTANCE: method includes using ground material other than Hevea with an average length of 1/2" to 4" and the maximum moisture content of 20 wt %. Processing is selected from: processing in a hammer mill using a screen calibre of less than 1/2" and processing in a roller mill with corrugated rollers having no more than 12 corrugations per inch. A milled plant other than Hevea with the maximum moisture content of 20 wt % is obtained. The content of rubber to be extracted is at least 30% higher than in ground material before grinding. It is possible to use guayule shrub as plant other than Hevea. EFFECT: invention allows to increase rubber content while processing a material other than Hevea. 6 cl, 4 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 637 971 C2 (51) МПК C08C 1/14 (2006.01) C08C 3/00 (2006.01) C08C 4/00 (2006.01) B01D 11/00 (2006.01) B02C 4/02 (2006.01) B02C 13/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015101287, 18.06.2013 (24) Дата начала отсчета срока действия патента: 18.06.2013 (72) Автор(ы): ХУАН Ини (US), СМЕЙЛ Марк У. (US) (73) Патентообладатель(и): БРИДЖСТОУН КОРПОРЕЙШН (JP) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: US 4739037 A, 19.04.1988. US Приоритет(ы): (30) Конвенционный приоритет: 18.06.2012 US 61/661,033 (45) Опубликовано: 08.12.2017 Бюл. № 34 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.01.2015 (86) Заявка PCT: US 2013/046380 (18.06.2013) (87) Публикация заявки PCT: 2 6 3 7 9 7 1 (43) Дата публикации заявки: 10.08.2016 Бюл. № 22 4591631 A, 27.05.1986. US 2007/0276112 A1, 29.11.2007. US 4136131 A, 23.01.1979. US 4376853 A1, 15.03.1983. SU 50447 A1, 01.01.1937. R U 08.12.2017 2 6 3 7 9 7 1 R U C 2 C 2 WO 2013/192217 (27.12.2013) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) СПОСОБЫ ПОВЫШЕНИЯ СОДЕРЖАНИЯ ЭКСТРАГИРУЕМОГО КАУЧУКА В МАТЕРИАЛЕ ...

System and method for removing powder and moisture of plastic particles

本发明公开了一种塑料粒子的除粉和除湿的系统和方法，所述系统包括：粗效过滤器、中高效过滤器、换热器、一级除粉器、缓冲料仓、静电消除仓、二级除粉器、除尘器。其中，粗效过滤器、中高效过滤器、换热器依次连接，换热器出口分别连接一级除粉器和二级除粉器的气体入口；一级除粉器的底部物料出口连接缓冲料仓顶部入口，缓冲料仓底部出口连接静电消除仓顶部入口，静电消除仓底部出口连接二级除粉器的顶部物料入口；一级除粉器和二级除粉器的气体出口连接除尘器。本发明可实现除粉过程多级串联，确保达到高效除粉和除湿的效果，获取高品质的塑料粒子产品。

Method of controlling process of polymeric material drying in worm machine

СПОСОБ УПРАВЛЕНИЯ ПРОЦЕССОМ СУШКИ ПОЛИМЕРНОГО МАТЕРИАЛА В ЧЕРВЯЧНОЙ МАШИНЕ, при котором измен ют частоту вращени  черв чного вала и величину сопротивлени  выгрузного устройства в зависимости от температуры материала в машине, отличающийс  тем, что, с целью повышени  качества сушки материала, величину сопротивлени  выгрузного устройства дополнительно измен ют в зависимости от разности температур материала в машине и в выгрузном устройстве, причем при разности температур , превышающей ее заданное значение, величину сопротивлени  выгрузного устройства уменьшают. б / (Л ;о ;о Од ю со A process for controlling the drying of a polymer material in a worm machine, which changes the frequency of rotation of the worm shaft and the resistance value of the discharge device, depending on the temperature of the material in the machine, differs in that depending on the temperature difference of the material in the machine and in the unloading device, and when the temperature difference exceeds its specified value, the resistance Unloading device reduce. b / (L; o; o

Cationic deproteinized natural rubber latex, method for producing the same, and treating agent used therefor

METHOD FOR ISSUING RUBBER FROM MATERIAL BRIQUETTES AND MATERIAL BRIQUETTES CONTAINING VEGETABLE MATERIAL OF GUAULA

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 130 331 A (51) МПК C08C 1/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017130331, 06.03.2013 (71) Заявитель(и): БРИДЖСТОУН КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ХУАНГ Ини (US), СМЕЙЛ Марк (US), УАЙТ Роберт (US), МОРИ Хироси (US), КОУЛ Вильям (US) R U Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) СПОСОБ ВЫДЕЛЕНИЯ КАУЧУКА ИЗ ВЫДЕРЖАННЫХ БРИКЕТОВ И ВЫДЕРЖАННЫЕ БРИКЕТЫ, СОДЕРЖАЩИЕ РАСТИТЕЛЬНЫЙ МАТЕРИАЛ ГУАЮЛЫ (57) Формула изобретения 1. Способ выделения каучука из брикетов, содержащих каучук, включающий: a. использование выдержанных брикетов, содержащих по меньшей мере один антиоксидант и измельченный растительный материал гуаюлы, который содержит багассу, каучук, смолу и менее 5 мас.% листьев гуаюлы, причем брикеты выдержаны в течение 21-200 дней после получения; b. измельчение выдержанных брикетов и затем смешивание измельченных брикетов с (i) по меньшей мере одним неполярным органическим растворителем и (ii) по меньшей мере одним полярным органическим растворителем с получением суспензии, причем общее количество (i) и (ii) составляет 50-90% от массы суспензии, брикеты составляют 10-50% от массы суспензии, и суспензия содержит 0,5-10 мас.% воды; c. удаление большей части багассы из суспензии с получением мисцеллы и первой порции багассы; d. не обязательно добавление дополнительного полярного органического растворителя, неполярного органического растворителя или их комбинации в мисцеллу с получением мисцеллы пониженной вязкости, причем любой дополнительный добавляемый полярный органический растворитель и неполярный органический Стр.: 1 A 2 0 1 7 1 3 0 3 3 1 A 04 2 0 1 7 1 3 0 3 3 1 (43) Дата публикации заявки: 05.02.2019 Бюл. № R U 06.03.2012 US 61/607,448; 06.03.2012 US 61/607,460; 06.03.2012 US 61/607,469; 06.03.2012 US 61/607,475; 06.03.2012 US 61/607,483; 18.06.2012 US 61/660,991; 18.06. ...

Production of nitrile rubber

(57)【要約】 【課題】 ニトリルゴム含有エマルジョンから安定なニ トリルゴムを回収する。 【解決手段】（１）ニトリルゴム含有エマルジョンに抗 酸化剤を加えて安定化されたニトリルゴムエマルジョン を製造する工程、（２）前記安定化されたニトリルゴム エマルジョンに塩及び酸を加えて凝固されたニトリルゴ ムスラリーを製造すること、ここで前記凝固されたニト リルゴムスラリーは漿液及びニトリルゴム小片を含む、 （３）ニトリルゴム小片を凝固したニトリルゴムスラリ ー中の漿液から分離する工程、（４）ニトリルゴム小片 を洗浄水中に混合してニトリルゴムの再スラリーを製造 する工程、（５）塩基の添加によってニトリルゴム再ス ラリーのｐＨを約５〜約８の範囲内となるように調節す る工程、並びに（６）ニトリルゴム小片をニトリルゴム 再スラリーの洗浄水から分離する工程を含むことを特徴 とする、ニトリルゴム含有エマルジョンからニトリルゴ ムを回収する改善された方法

High-efficient drying equipment is used in recycled plastic granule production based on big data

本发明公开了一种基于大数据的再生塑料颗粒生产用高效烘干设备，其中包括烘干设备和智能烘干系统，所述烘干设备包括烘干腔，所述烘干腔下方固定安装有支撑架，所述烘干腔底部设置有支撑块，所述支撑块上方固定安装有电机，所述电机右侧设置有传动腔，所述传动腔内部设置有传动机构，所述电机的输出端与传动机构固定连接，所述传动机构的输出端固定安装有控制腔，所述控制腔外壁与烘干腔底部轴承连接，所述控制腔内部设置有控制机构，所述控制腔外壁滑动连接有若干搅拌叶，所述烘干腔内壁上方固定安装有固定杆，该设备解决了当前无法在烘干塑料颗粒的过程中智能化的改善烘干质量的问题。

Rubber composition for tire and pneumatic tire

The method for preparing the rubber based on nitrile

提供了一种制备具有34wt％以下的量的烯属不饱和腈的基于腈的橡胶的方法，包括：通过将基于烯属不饱和腈的单体以两批以上的方式添加至基于共轭二烯的单体中来进行聚合反应以制备聚合物，以及通过将基于硫的凝聚剂添加至所述聚合物中来使所述聚合物凝聚，而由此制备的基于腈的橡胶具有改善的机械性能以及优良的加工性能和低温特性。

Improved process for preparing acrylonitrile-based polymer homogeneous melt

본 발명의 목적은 용융방사 혹은 용융압출성형에 적합한 아크릴로니트릴계 중합체 균일상 용융물을 제조하는 방법을 제공함에 있다. It is an object of the present invention to provide a method for producing an acrylonitrile-based polymer homogeneous melt suitable for melt spinning or melt extrusion molding. 본 발명은 아크릴로니트릴계 중합체 30∼60중량% 함수크럼을 140℃이상의 온도로, 또한 자생압 이상의 가압하에 용융상태로 제수하고 그 중합체 농도 70중량% 이상까지 농축함으로써 달성된다. The present invention is achieved by distilling an acrylonitrile-based polymer 30 to 60% by weight of the hydrous crumb in a molten state at a temperature of 140 ° C or higher and under autogenous pressure or higher and concentrating the polymer concentration to 70% by weight or more.

A kind of injection machine raw material filtering screening pulverizer

本发明公开了一种注塑机原料过滤筛选粉碎机，包括机架，所述机架固定安装在地面上，所述机架中设有隔板将机架分为两层，所述机架中设有初步筛选机构，所述筛选箱中设有杂质收集机构，所述机架内设有过滤水收集机构，所述机架内设有原料粉碎机构，所述原料粉碎机构设有原料粉碎箱，所述原料粉碎箱内设有滑轨，所述滑轨上设有两个调节直线电机，所述滑轨上设有两个粉碎驱动电机，所述原料粉碎箱内设有原料收集箱。所述机架外设有控制器，所述控制器内设有工业用电进口，所述控制器内设有电容显示屏，所述控制器内设有PLC系统。本发明的有益效果是，结构简单，实用性强。

Controlling proteolytic action in natural rubber latex

A method for controlling proteolytic action in manufacturing enzyme-treated natural rubber latex and products made therefrom. The method involves adding a protease inhibitor such that hydrolysis by protease enzymes is stopped. A preferred inhibitor is a low molecular weight, cationic protease inhibitor from Fagopyrum esculentum having stability in the pH range of 2–12.