СТАБИЛИЗИРОВАННЫЙ ПОЛИЭТИЛЕНОВЫЙ МАТЕРИАЛ

Изобретение относится к изделиям из стабилизированных полиэтиленовых материалов, в частности, к трубе, выполненной из многомодального сополимера этилена и альфа-олефина, содержащей систему антиоксидантов, состоящую из 1) по меньшей мере одного антиоксиданта из первого класса антиоксидантов, представляющего собой ! 3, 3', 3'', 5, 5', 5'' - гекса-трет-бутил-альфа, альфа', альфа'' - (мезитилен-2,4,6-триил)три-п-крезол; 2) по меньшей мере одного антиоксиданта из второго класса антиоксидантов, включающего затрудненный фенол, выбранный из группы, состоящей из тетракис-(3-(3,5-ди-трет-бутил-4-гидроксифенил)пропионата) пентаэритрита, октадецил-3-(3,5-ди-трет-бутил-4-гидроксифенил)пропионата, 1,3,5-трис-(3,5-ди-трет-бутил-4-гидроксибензил)-1,3,5-триазин-2,4,6(1Н, 3Н,5Н)триона, 1,3,5-трис-(4-трет-бутил-3-гидрокси-2,6-диметилбензил)-1,3,5-триазин-2,4,6-(1Н,3Н,5Н)-триона, этилен-бис-(оксиэтилен)-бис-(3-(5-трет-бутил-4-гидрокси-м-толил)пропионата), 1,6-гексаметилен-бис-(3,5-ди(трет-бутил)-4-гидроксигидроциннамата), тиодиэтилен-бис-[3-(3,5-ди-трет-бутил-4-гидроксифенил)пропионат], трис-(2,4-ди-трет-бутилфенил)фосфата, и их смесей. Полиэтиленовая труба в соответствии с изобретением демонстрирует устойчивость к экстракции в среде горячей воды. Дополнительно труба демонстрирует устойчивость к окислению при действии хлора в воде внутри трубы и кислорода с наружной стороны трубы. 1 н. и 5 з.п. ф-лы, 1 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 375 388 (13) C2 (51) МПК C08K 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006123558/04, 03.12.2004 (24) Дата начала отсчета срока действия патента: 03.12.2004 (73) Патентообладатель(и): ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ИНК. (US) (43) Дата публикации заявки: 10.01.2008 2 3 7 5 3 8 8 (45) Опубликовано: 10.12.2009 Бюл. № 34 (56) Список документов, цитированных в отчете о поиске: RU 2127922 C1, 20.03.1990. SU 1838344 ...

Hohlkoerper und ihre Herstellung

Verfahren zur Herstellung von Krümmerschläuchen

Die Erfindung betrifft ein Verfahren zur Herstellung von Krümmerschläuchen. DOLLAR A Dabei wird ein Schlauchrohling auf einen flexiblen Dorn aufgebracht, der Schlauchrohling mit dem im Inneren befindlichen Dorn auf eine vorbestimmte Länge geschnitten, der Abschnitt des Schlauchrohlings mit dem im Inneren befindlichen Dorn in eine Negativform eingelegt, vulkanisiert und wieder aus der Negativform entnommen und der Dorn aus dem Inneren des fertigen Krümmerschlauchs entfernt. DOLLAR A Vor Einlegen des auf die vorbestimmte Länge geschnittenen Schlauchrohlings in die Negativform wird ein Stützmantel über den Schlauchrohling aufgezogen und gemeinsam mit dem Schlauchrohling und dem im Inneren befindlichen Dorn in eine dem Außendurchmesser des Stützmantels angepasste Negativform eingelegt. Der Schlauchrohling in der Negativform wird ohne vorherige Vorvulkanisation in einem Arbeitsgang vulkanisiert und nach Entnahme aus der Negativform zusätzlich der Stützmantel entfernt.

MULTILEVEL PIPE FROM PP AND FLUOROPOLYMEREN FOR FUEL TRANSPORT

SHAPED PART FROM PLASTIC FOR MANUFACTURING PIPINGS

FEUERWEHRSCHLAUCH

Die Erfindung beschreibt einen Schlauch, insbesondere Feuerwehrschlauch, umfassend einen aus Fasern und/oder Fäden bestehenden äußeren Mantel und eine mit diesem gegebenenfalls durch eine Verbindungsschicht verbundene, aus einem für ein im Schlauch befindliches Medium undurchlässigen Material gebildete Innenauskleidung mit einer Innen- und einer Außenseite und ein Verfahren zu dessen Herstellung. Der Mantel enthält einen hydrophob und/oder oleophob wirksamen Bestandteil einer Imprägnierflüssigkeit.

COILED TUBING

POROUS POLYTETRAFLUOROETHYLENE TUBINGS AND PROCESS OF PRODUCING THEM

A porous polytetrafluoroethylene tubing, useful as artificial internal organs or industrial filtering materials for, for example reverse osmosis, ultrafilteration, etc., having a microporous fibrous structure in which the fibrous structure is composed of fibers and nodes connected with each other and the microporous fibrous structure differs between the other surface portions of the tubing and the inner surface portions of the tubing, and a process for producing the porous resin tubing comprising heating a tubing made of an unsintered polytetrafluoroethylene under conditions in which the tube is stretched at least in the longitudinal direction of the tubing and such that the outer surface of the tubing is heated above about 327.degree.C and the inner surface of the tubing is heated to a temperature below the temperature of the outer surface.

MULTI-LAYERED TUBE AND MEDICAL DEVICE COMPRISING MULTI-LAYERED TUBE

A tube having a multilayer structure composed of at least two layers which differ from each other in composition and each comprises a resin composition comprising a polypropylene resin and at least one copolymer selected from the group consisting of hydrogenated block copolymers obtained by hydrogenating a block copolymer comprising a polymer block derived from a vinyl aromatic compound and an isoprene and/or butadiene polymer block and of hydrogenated copolymers obtained by hydrogenating a copolymer of a vinyl aromatic compound and butadiene. The multilayered tube is excellent in flexibility and nonkinking properties and withstands high-pressure steam sterilization. It generates no harmful gases upon incineration and is highly bondable to other tubes by fusion or with a solvent. It is usable as a multilayered medical tube.

POLYMERIC PIPES AND LINERS AND FUEL LINES MADE FROM BLENDS OF FLUOROPOLYMERS AND POLYAMIDES

A pipe or liner for use in the oil and gas industry that comprises a melt- mixed bend of polyamide and grafted fluoropolymer having polar functionality where the grafted fluoropolymer having polar functionality exists as a discontinuous phase that is dispersed in a polyamide matrix. The pipe or liner has enhanced resistance to the permeation of hydrocarbons relative to polyethylene. A further embodiment is fuel lines that comprise a melt-mixed bland of polyamide and a grafted fluoropolymer having polar functionality.

POLYMERIC PIPES MADE FROM BLENDS OF POLYOLEFINS AND VINYL ALCOHOL POLYMERS

A pipe that comprises a melt-mixed bend of vinyl alcohol polymer and incompatible polyolefin and a compatibilizing agent where the vinyl alcohol polymer exists as a discontinuous phase that is dispersed in a polyolefin matrix. The pipe has enhanced resistance to the permeation of hydrocarbons and hydrocarbon/alcohol mixtures relative to polyethylene.

HYDROLYSIS RESISTANT POLYAMIDE COMPOSITIONS AND ARTICLES FORMED THEREFROM

... ²²²Polyamide compositions exhibiting superior hydrolysis resistance and pipes and ²other articles made therefrom are disclosed.² ...

COILED TUBING

Rohr

Verfahren und Vorrichtung zur Herstellung eines Schlauches aus weichem, verschweissbarem Material

Druck- und vakuumbeständiger, zum Anschluss an Melkmaschinen bestimmter Kunststoffschlauch

Kunststoffschlauchleitung

Rohr und Verfahren zu seiner Herstellung

Process of forming of tubes and tubes thus obtained

MANUFACTORING PROCESS Of a RUBBER PIPE LAMINATES AND PRODUCED OBTAINED

TUBULAR ARTICLE TRANSPORTING FLUID

TUBE ROLLS UP IN SERPENTINE FOR TRANSPORT OF FLUIDS UNDER PRESSURE

Fluid transfer pipe, especially for automobiles

Tuyau de transfert de fluide, en particulier pour véhicule automobile, comprenant par exemple une couche interne (10) d'une matière imperméable au fluide transporté, une couche (12) de renforcement textile, une couche intermédiaire (14) de matière résistant au fluide transporté, une couche (16) de renforcement textile et une couche extérieure (18) de protection en un élastomère du type polyéthylène chlorosulfoné comportant des groupes alkyles latéraux. L'invention s'applique notamment aux circuits de direction assistée, de freinage, de climatisation, de carburant, etc..., pour véhicule automobile.

Rubber composition, process for producing the same, fuel hose, and fuel supply circuit incorporating the same

Tube, method for producing tube and method for storing tube

The present invention provides a tube which contains a tetrafluoroethylene/fluoroalkyl vinyl ether copolymer, wherein: the surface roughness Ra of the inner surface of the tube as determined by means of an atomic force microscope (AFM), while setting the evaluation length to 3 [mu]m, is 5 nm or less; and the amount of metal dissolved from the inner surface of the tube is 0.30 ng/cm2 or less.

Low permeation polybutylene terephthalate and polybutylene naphthalate fuel and vapor tubes

A tubular structure exhibiting fuel and vapor impermeability properties for use as a fuel transport hose, wherein the hose is constructed of a polyalkylene terephthalate material or a polyalkylene naphthalate material, wherein the polyalkylene terephthalate or the polyalklyene naphthalate material extends throughout the entire wall structure.

TUBE AND FRAGRANCE PRODUCT

There is provided a tube for transferring a liquid having a refractive index of 1.35 to 1.41 wherein the tube contains a fluoropolymer, and the fluoropolymer has a melt flow rate of 3 to 150 g/10 min, and a light transmittance at a wavelength of 300 nm of 85% or higher.

IRRIGATION PIPE AND METHOD

The present invention relates to a drip irrigation pipe having pipe wall comprising a base portion and a strip located on at least a portion of an inner side of the base portion facing into the pipe. The pipe further comprises drip emitters (20) attached to the strip. The material of the strip is different than the material of the base portion.

СТАТИСТИЧЕСКИЙ СОПОЛИМЕР ПРОПИЛЕНА И ЭТИЛЕНА, ПРИЕМЛЕМЫЙ ДЛЯ ТРУБ

FIELD: chemistry.SUBSTANCE: invention relates to a composition intended for production of pressure pipes. Composition contains a random copolymer of propylene and ethylene, which has a melt flow rate determined in accordance with ASTM D1238 at 230 °C and with weight of 2.16 kg, less than 1 g/10 min, content of soluble in xylene substances, measured by wet method, less than 7 wt. % and content of ethylene from 3 to 5 wt. % of copolymer. At that, Konig value B per % mm of triad measured on xylene-insoluble fractions of random copolymer and obtained by wet method is greater than or equal to 92.EFFECT: pipes made from the composition demonstrate high resistance to prolonged action of pressure.15 cl, 1 dwg, 2 tbl, 7 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 707 288 C2 (51) МПК C08F 210/06 (2006.01) F16L 9/12 (2006.01) F16L 11/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C08F 210/06 (2019.08); C08F 210/16 (2019.08); F16L 11/06 (2019.08); F16L 9/127 (2019.08) (21)(22) Заявка: 2016120731, 28.10.2014 (24) Дата начала отсчета срока действия патента: Дата регистрации: 26.11.2019 (73) Патентообладатель(и): У.Р. ГРЕЙС ЭНД КО.-КОНН. (US) 29.10.2013 US 61/896,981 (43) Дата публикации заявки: 05.12.2017 Бюл. № 34 (45) Опубликовано: 26.11.2019 Бюл. № 33 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.05.2016 (56) Список документов, цитированных в отчете о поиске: RU 2011132064 A, 10.02.2013. WO 2010/140745 A1, 09.12.2010. RU 2310789 C2, 20.11.2007. WO 2013/016647 A1, 31.012013. WO 2013/029699 A1, 07.03.2013. 2 7 0 7 2 8 8 Приоритет(ы): (30) Конвенционный приоритет: R U 28.10.2014 (72) Автор(ы): ЧОУ Чай-Дзинг (US), КААРТО Джон (US), БО III Дэниел В. (US), ВАН ЭГМОНД Ян В. (US), ГОУД Джеффри Д. (US), ШИРД Уилльям Дж. (US) US 2014/062596 (28.10.2014) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 7 0 7 2 8 8 WO 2015/065990 (07.05.2015) Адрес для переписки: 129090, Москва, ул. Б.Спасская, ...

ТРУБКА И ПАРФЮМЕРНЫЙ ПРОДУКТ

Предложена трубка для перемещения жидкости, имеющая показатель преломления от 1,35 до 1,41, причем трубка содержит фторполимер, при этом фторполимер имеет показатель текучести расплава от 3 до 150 г/10 мин, светопропускание при длине волны 300 нм 85% или выше и кристалличность от 15 до 60%. 3 н. и 11 з.п. ф-лы, 5 пр.

Ethylen-Propylen-Kautschukmischung, daraus hergestellte Gegenstände und deren Verwendung

Ethylen-Propylen-Kautschukmischung mit einem Ethylen-α-Olefin-Diencopolymer als der Kautschukkomponente der Mischung, wobei das Ethylen-α-Olefin-Diencopolymer einen Propylengehalt von etwa 43 bis etwa 51 Gew.-%, einen Iodwert von etwa 33 bis etwa 39, eine Mooney-Viskosität (ML1+4 100°C) von etwa 34 bis etwa 44 und ein Verhältnis MW/MN von etwa 5 oder weniger aufweist, und mit Schwefelpulver sowie Ruß mit einer Öladsorption von etwa 40 mg/g bis etwa 80 mg/g und einer Dibutylphthalat-Ölabsorption von wenigstens etwa 140 ml/100 g.

WENDELROHR

Polyamidverbundharzzusammensetzung für eine Treibstoffeinfüllröhre

Polyamidverbundharzzusammensetzung für eine Treibstoffeinfüllröhre, wobei das Polyamidverbundharz umfasst:41 bis 77 Gew.% Polyamid 6; 5 bis 15 Gew.% modifizierten Nylons auf m-Xylylendiamin-(MXD)-Basis;14 bis 30 Gew.% eines thermoplastischen Elastomerkautschuks, ausgewählt aus der Gruppe eines Maleinanhydrid-gepfropften Ethylen-Octen-Copolymers, eines Maleinanhydrid-gepfropften Ethylen-Propylen-Dienmonomer-Copolymers oder einer Mischung daraus; und 3 bis 10 Gew.% an gemischtem Ton, worin der gemischte Ton Immobilisierungs-vorbehandelt ist durch Mischen von tafelförmigem Montmorillonit und Hectorit in einem Gewichtsverhältnis von 1:1.

Materialzusammensetzung für einen Schlauchkörper sowie Schlauch mit einem Schlauchkörper mit einer derartigen Zusammensetzung

Eine Materialzusammensetzung für einen Schlauchkörper (2) hat ein polymeres Basismaterial (3) und einen Weichmacher (4). Das polymere Basismaterial (3) hat einen Basismaterial-Anteil aus suspensionspolymerisiertem Rohpolymer und einen Basismaterial-Anteil aus emulsionspolymerisiertem Rohpolymer. Bei einem weiteren Aspekt, der auch zusätzlich vorliegen kann, hat das polymere Basismaterial (3) ein suspensionspolymerisiertes Rohpolymer und mindestens ein weiteres Rohpolymer, dessen Grund-Monomer sich in seinem Molekülaufbau vom ersten Rohpolymer unterscheidet. Es resultiert eine Materialzusammensetzung, bei der eine unerwünschte Gasblasen-Anlagerung an einer Oberfläche eines Schlauchlumens des hergestellten Schlauchkörpers verhindert ist.

Fibrous tubular structure and process for making same

... 974,453. Pipes and tubes. E. I. DU PONT DE NEMOURS & CO. March 15, 1963 [March 16, 1962], No. 10469/63. Heading F2P. A process for preparing a fibrous tube comprises winding a plurality of layers of sheets or strands composed predominantly of crystalline oriented film-like polymer elements around a mandrel to form a tube, compresssing the tube wall and heating the tube to weld the film-like elements together at their cross-over points without destroying the crystalline orientation of the filmlike elements at the centre of thickness of the tube wall. The film elements used have a thickness of less than 4 microns, and may be made by direct lay-down of plexifilaments on a moving belt or by cutting and beating plexifilaments in aqueous suspension and forming sheets on a screen. Plastics used are branched polyethylene, linear polyethylene polypropylene, poly- (ethylene terephthalate) and poly(hexamethylene adipamide). The sheet may be wrapped helically or normal with respect to the axis of the ...

Rubber composition and automobile fuel system part using same

Pipe

STABILIZED POLYETHYLENE MATERIAL

Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

MULTILAYER STRUCTURE

... ²² A multilayer structure comprising two or more layers ²including at least a layer (a) comprising (A) an ²aliphatic polyamide and a layer (b) comprising (B) a ²semi-aromatic polyamide comprising a diamine unit ²containing an aliphatic diamine unit having a carbon ²number of 9 to 13 in an amount of 60 mol% or more based ²on all diamine units and a dicarboxylic acid unit ²containing a terephthalic acid and/or ²naphthalenedicarboxylic acid unit in an amount of 50 mol% ²or more based on all dicarboxylic acid units, with the ²layer (b) being disposed as the innermost layer. The ²multilayer structure of the present invention is ²excellent in the heat resistance, chemical resistance, ²liquid and/or gas chemical permeation-preventing ²property, monomer.cndot.oligomer elution resistance, interlayer ²adhesion and durability.² ...

MULTILAYER STRUCTURE

CROSSLINKED POLYETHYLENE ARTICLES AND PROCESSES TO PRODUCE SAME

A high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. A method for producing the plastic material is also provided. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation.

Nitrile copolymer latex composition and nitrile copolymer rubber composition

A nitrile copolymer latex composition which comprises: a latex of a nitrile copolymer rubber (A) comprising 10-75 wt.% units of an a,ss-ethylenically unsaturated nitrile monomer, 5-89.9 wt.% units of a conjugated diene monomer, and 0.1-20 wt.% units of a cationic monomer and/or of a monomer capable of forming a cation; an inorganic filler (B) having an aspect ratio of 30-2,000; and a plasticizer (C) or a coupling agent (D) each having an SP value determined by the HOY method of 8-10.2 (cal/cm3)1/2. The amount of the plasticizer (C) contained is 0.1-200 parts by weight per 100 parts by weight of the nitrile copolymer rubber (A), and the amount of the coupling agent (D) contained is 0.1-20 parts by weight per 100 parts by weight of the nitrile copolymer rubber (A). This composition has low gasoline permeability and is excellent in sour-gasoline resistance and freeze resistance.

Use of a radiation-grafted fluoropolymer-based pipe for the transportation of gasoline in service stations

PIPES OUT OF POROUS POLYTETRAFLUOROETHYLENE, AND THEIR METHOD OF PREPARATION

TUBE ROLLS UP IN SERPENTINE FOR TRANSPORT OF FLUIDS UNDER PRESSURE

MULTI-LAYER CONTROL FOR THE TRANSPORT OF FUEL

TUBE OUT OF PLASTIC, IN PARTICULAR INTENDS TO BE USED AS SHEATH FOR the PASSAGE OF CABLES OR DRAINS, AND CROWNS Of SUCH a TUBE

Tube en matière plastique rigide, en particulier destiné à servir de gaine pour le passage de câbles ou de canalisations. Le tube, d'un diamètre extérieur supérieur à 30 mm, comporte une structure composite (5, 6, 7) prévue pour qu'un enroulement du tube soit possible sans efforts trop importants, et pour que la section transversale du tube ait une bonne rigidité pour résister à l'écrasement. Le tube est apte à être enroulé, sans déformation permanente sensible de sa section circulaire, suivant un rayon de courbure au plus égal à cinquante fois (50 fois) le diamètre externe (A) du tube.

Paste extrusion of PTFE tube using revolving nozzle - pref. also revolving mandrel to give circumferential fibrous structure

THERMOPLASTIC POLYMER COMPOSITION VISCOUS AND STABLE TRANSFORMATION, ITS PREPARATION AND USES

La présente invention concerne l'utilisation d'au moins un catalyseur, d'au moins un stabilisant thermique au cuivre et d'au moins un oligo- ou polycarbodiimide avec une matrice comprenant au moins un polymère thermoplastique, notamment un polyamide, pour constituer une composition présentant une bonne viscosité à l'état fondu et stable à la transformation, en particulier à l'extrusion.

THERMOPLASTIC POLYMER COMPOSITION STABLE VISCOUS TRANSFORMATION-, PREPARATION AND USES THEREOF

COMPOSITE MATERIAL INCLUDING/UNDERSTANDING OF THE NANOTUBES DISPERSE IN A POLYMERIC MATRIX FLUROREE.

La présente invention concerne un matériau composite comprenant des nanotubes d'au moins un élément chimique choisi parmi les éléments des colonnes IIIa, IVa et Va du tableau périodique, dispersés dans une matrice polymérique comprenant (a) au moins un homo- ou copolymère fluoré et (b) au moins un homo- ou copolymère fluoré greffé par au moins une fonction polaire carboxylique. Elle concerne également les utilisations de ce matériau composite, ainsi que l'utilisation d'au moins un homo- ou copolymère fluoré greffé par au moins une fonction polaire carboxylique pour augmenter la résistance à la traction d'un matériau composite comprenant les nanotubes précités dispersés dans une matrice polymérique fluorée.

DEVICE FOR CONNECTING CIRCULAR PIPE

폴리아미드 수지 조성물 및 성형품

... 메타크실릴렌디아민 단위를 30몰% 이상 포함하는 디아민 단위와 디카르복시산 단위로 이루어진 폴리아미드(A)에 방향족 제2급 아민계 화합물(B)을 함유시켜, 23℃, 75％ RH에서의 산소 투과 계수를 1cc·㎜/㎡·일·atm 이하로 함으로써, 가스 배리어성과 내열 노화성이 뛰어난 메타크실렌기를 함유하는 폴리아미드 수지 조성물을 제공한다.

EASILY DISTINGUISHABLE INDUSTRIAL AIR TUBE

The present device relates to an easily distinguishable industrial air tube on which a standard-displaying part is formed on a surface of each air tube to easily distinguish the standard of the air tube, to thereby improve convenience in use. For this purpose, an air tube for pneumatic, painting, and piping applications used in various industrial settings includes a standard-displaying part (20) having a plurality of display lines (21) for displaying the standards for the outer diameter, thickness, and material of the air tube (10) such that the standards of each air tube (10) are displayed on an outer surface of the air tube (10) in order to easily distinguish each air tube.

ECO-FRIENDLY PLASTICIZED PVC COMPOUND AND ITS USE FOR MANUFACTURING A FLEXIBLE HOSE

The use of a plasticized PVC compound for manufacturing flexible hoses, the compound comprising: (A) 20% to 80% by weight of a PVC matrix; (B) 10% to 50% by weight of a plasticizer agent; (C) 0,1 % to 5% by weight of a stabilizer agent; (D) 0,1 % to 50% by weight of at least one vegetable filler; (E) 0% to 50% by weight of at least one additive; (F) 0% to 40% by weight of at least one elastomer compatible with said PVC matrix (A). The compound has a Shore A hardness according to UNI EN ISO 868 of 60 to 90. The at least one vegetable filler (D) is 0,1 % to 35% by weight if the elastomer (F) is 0% or less than 5% by weight a nd 0,1 % to 50% by weight if the elastomer (F) is 5% to 40% by weight.

Fluororubber composition

A fluororubber composition including a fluororubber having an iodine content of 10 to 90 mol % for the total mole of the polymer end groups and a carbon black (B), wherein a difference (δG′), represented by G′(1%)-G′(100%), is not lower than 120 kPa and not higher than 3,000 kPa, where G′(1%) denotes a shear modulus at a dynamic strain of 1% under an uncrosslinked state and G′(100%) denotes a shear modulus at a dynamic strain of 100% under an uncrosslinked state, and G′(1%) and G′(100%) are determined by a dynamic viscoelasticity test with a rubber process analyzer (RPA) in a condition that the measurement frequency is 1 Hz and the measurement temperature is 100° C.

Electron cured plastic insulated conductors

Methods for processing curable thermoplastic elastomers and particularly to flexible, shaped articles made therefrom which have improved high strength, radiation and temperature resistance and electrical characteristics useful as fluid transmission tubing and/or as electrical insulation. Such articles are made from uncured, thermoplastic elastomer materials - in the form of selectively hard, radiation, sensitive, flowable solids - which are thermoplastically molded to provide an essentially uncured, dimensionally stable, intermediate shaped article. Such intermediate articles are radiation-cured to provide finished cross-linked articles having such characteristics.

Multilayer pipe made of polyamides and fluoropolymer for conveying fuel

Phenylene sulfide/biphenylene sulfide copolymer pipe

СПОСОБ ПОЛУЧЕНИЯ ФОРМОВОЧНОЙ МАССЫ ИЛИ ФОРМОВАННОГО ИЗДЕЛИЯ С ПОВЫШЕННОЙ ЖЕСТКОСТЬЮ РАСПЛАВА

... 1. Способ получения формовочной массы или формованного изделия при конденсации полиамидной формовочной массы с 0,005 до 10 мас.% в расчете на полиамид соединения по меньшей мере с двумя карбонатными звеньями, содержащий следующие стадии:a) приготовление смеси формовочной массы на основе полиамида, концевые группы которого по меньшей мере на 50% находятся в виде концевых аминогрупп, и содержание полиамида в которой составляет от 10 до 99 мас.ч., и маточной смеси, содержащей соединение по меньшей мере с двумя карбонатными звеньями, а также полиэфирамид, причем содержание полиэфирамида в маточной смеси составляет от 1 до 90 мас.ч., сумма массовых частей полиамида и полиэфирамида составляет 100, а концевые группы полиэфирамида по меньшей мере на 50% находятся в виде концевых аминогрупп;b) смесь при необходимости подвергают хранению и/или транспортированию,c) смесь подвергают смешению в расплаве при сильном сдвиговом воздействии иd) расплавленную смесь выгружают и отверждают.2. Способ по п.1 ...

СТАТИСТИЧЕСКИЙ СОПОЛИМЕР ПРОПИЛЕНА И ЭТИЛЕНА, ПРИЕМЛЕМЫЙ ДЛЯ ТРУБ

Mehrschichtiges Rohr und medizinische Vorrichtung mit mehrschichtigem Rohr

LAMINIERTER GUMMISCHLAUCH

AUS MISCHUNGEN VON POLYOLEFINEN UND VINYLALKOHOLPOLYMEREN HERGESTELLTE POLYMERROHRE

Pipe having reduced residual stress

A polyetheretherketone pipe with a residual stress of less than 5MPa is made using a calibrator device 2 having a cone shaped opening 6 to receive a molten extruded pipe shaped polymer. Attached to front member 4 is a vacuum plate 14a and successive plates 14b-14h are attached in an array. The plates being arranged to allow a vacuum to be applied to the pipe precursor. Plates 14 include temperature control means for heating or cooling the plates and the pipe precursor. With vacuum applied to opening 6, 16 and heating/cooling the plates, an extruded hot plastics pipe is conveyed through plates 14, whereupon it is urged by the vacuum against the cylindrical surface defined by plates 14 to maintain its shape. The temperature of each plate is controlled to control the rate of cooling. The pipe may be cooled at a relatively slow rate so that a pipe made from a relatively fast crystallising polymer crystalises and the crystallinity of the pipe along its extent and throughout its thickness is ...

Improved pipe and method of production

IMPROVEMENTS IN AND RELATING TO PLASTICS HOSE

... 1,237,640. Helically-coiled tubes. I.T.E. IMPERIAL CORP. 12 May, 1969, No. 24128/69 Heading F2P. In a method of continuously forming eoiled hose made of plastics such as nylon, a plastics tube 10 is fed to a forming zone 11 with its temperature at, or above, the annealing temperature thereof, the forming zone comprising a plurality of helically-spaced, driven roller pairs 20a, 20a each defining a tube receiving-space therebetween. The tube 10 is driven through the roller pairs 20a, 20a to follow a helical path 21 and is cooled, as it descends below a level L, commencing at a first point 12 spaced from the beginning of the helical path sufficiently to cause the tube to assume a helical configuration prior to the cooled thereof. Cooling stops at a subsequent point 44 whereat the tube is cooled sufficiently to become set in a helical configuration. Guide rollers 20, which form the tube pairs 20a, have shanks 24, which are rotatably mounted in bearings 34, 35 in spaced end plates 32, 33 of ...

An improved manufacture of hose for conducting steam

... 543,288. Hydrocarbon polymer compositions ; pipes and tubes. STANDARD OIL DEVELOPMENT CO. Dec. 22, 1939, No. 32761. Convention date, Feb. 2. [Class 2 (iii)] [Also in Group XXVIII] A hose for conducting high temperature steam is formed from a co-polymer of isobutylene and butadiene compounded with sulphur under vulcanizing conditions and with mineral filler material such as whiting, zinc oxide, carbon black, asbestos fibre, mica, rouge, clay and inorganic pigments. In an example, the co-polymer is compounded with sulphur, zinc oxide, tetramethyl thiuram disulphide, phenyl #-naphthylamine, clay and mercaptobenzothiazole, and extruded in tubular form ; the tube may be covered with a fabric formed of fibres such as spun asbestos or threads of cotton or syntnetic silk, further layers of polymer and fabric being applied if desired. The tube is then heated, preferably within a mould by the application of gas or fluid pressure witnin the tube, to effect the reaction between the polymer and the ...

HYDROLYSIS-RESISTANT PP COMPOSITIONS AND FROM IT FORMED ARTICLES

Method for transporting water comprising soil particles through a pipeline and flexible peripheral body evidently intended for the method

The invention relates to a method for transporting water comprising soil particles through a pipeline, wherein a pressure difference is applied between an inlet and an outlet for the water. The pipeline comprises a flexible peripheral body with a length of at least 300 m manufactured from plastic foil, wherein the peripheral body can be brought from a substantially flat state, in which peripheral parts lie on one another, to an inflated state in which the peripheral body has a throughflow area of at least 0.15 m2. The invention likewise relates to a method for laying a pipeline for transporting water comprising soil particles, and a flexible peripheral body evidently intended for the methods.

SELF-COILING FLEXIBLE TUBE

EXTRUSION PROCESS OF POLYTETRAFLUOROETHYLENE TUBING MATERIALS AND APPARATUS THEREFORE

FUEL HOSE

A fuel hose which comprises at least one layer including an inner layer composed of a resin composition. The resin composition essentially comprises a polyester resin including at least one of polybutylene naphthalate and polyethylene naphthalate and further comprises a phospphate.

COILABLE EXTRUDED POLYVINYL CHLORIDE PRODUCTS AND COMPOSITIONS FOR MAKING THE SAME

PEX NEEDLE

Fluororubber composition

本发明提供一种氟橡胶组合物，所述氟橡胶组合物不仅在耐热性方面而且在高温拉伸性质和拉伸疲劳性质方面十分优异。本发明涉及一种氟橡胶组合物，所述氟橡胶组合物包含碘含量为聚合物端基总摩尔数的10摩尔％～90摩尔％的氟橡胶和炭黑(B)，其中由G'(1％)-G'(100％)表示的差(δG')不低于120kPa且不高于3,000kPa，其中G'(1％)是指未交联状态下的动态应变为1％时的剪切模量，G'(100％)是指未交联状态下的动态应变为100％时的剪切模量，并且G'(1％)和G'(100％)是利用橡胶加工分析仪(RPA)在测量频率为1Hz并且测量温度为100℃的条件下通过动态粘弹性测试而确定。

COMPOSITE MATERIAL INCLUDING/UNDERSTANDING OF THE NANOTUBES DISPERSE IN A POLYMERIC MATRIX FLUROREE.

Flexible or semi-rigid plastic pipe nonlikely to be flattened completely

Improvements with the flexible tubes

HEAT SHRINKABLE FLUOROCARBON TUBING

Reducing vibration rubber compound

파이프에 적합한 프로필렌 에틸렌 랜덤 공중합체

... 용융 유량 (MFR)이 (230℃, 2.16 Kg에서 ASTM D1238에 따라 결정할 때) 1 g/10 min 미만이고, 자일렌 가용물 함량이 7 중량% 미만이고, 에틸렌 함량이 공중합체의 3 내지 5 중량%이고, 습식법에 의해 얻어지는 랜덤 공중합체의 자일렌 불용성 분획에서 측정된 쾨니히 B 값 곱하기 % mm 트라이애드의 곱이 92 이상의 값인 프로필렌 에틸렌 랜덤 공중합체를 포함하는 조성물이 제공된다. 상기 조성물로부터 제조되는 파이프는 개선된 압력 내구성을 나타낸다.

약액 수송용 다층 튜브 및 폴리아미드 수지 조성물

... 최외층과, 폴리아미드 (A), 내충격성 개량제 (B), 및 카본 나노 튜브 (C) 를 포함하는 최내층을 갖는 약액 수송용 다층 튜브로서, 그 최내층의 표면에 존재하는, 높이 5 ㎛ 이상 또한 긴 폭 20 ㎛ 이상인 볼록부가 표면적 1 ㎟ 당 2 개 이하이며, 그 최내층의 단면에 존재하는, 긴 폭 5 ㎛ 이상인 응집 덩어리가 단면적 1 ㎟ 당 15 개 이하인 약액 수송용 다층 튜브, 및 그 약액 수송용 다층 튜브의 최내층을 구성하는 폴리아미드 수지 조성물이다.

Extrusion process of polytetrafluoroethylene tubing materials and apparatus therefor

This application relates to a paste extrusion process using a ram type extruder wherein at least one, preferably both, of the die and mandrel of the extruder are rotated, in opposite directions when both are rotated. In preferred embodiments, the material being extruded is polytetrafluoroethylene, the mandrel has a smooth surface and the end portion of the die is heated.

PIPE

A polyetheretherketone pipe of length greater than 250 meters and a residual stress of less than 5 MPa may be made using a calibrator device which includes a cone shaped opening arranged to receive a molten extruded pipe shaped polymer. Attached to the front member is a vacuum plate and successive vacuum plates -are attached to one another to define an array of vacuum plates, the vacuum plates being arranged to allow a vacuum to be applied to a pipe precursor passing through opening . The vacuum plates also include temperature control means for heating or cooling the plates and therefore heating or cooling a pipe precursor passing through the openings. With a vacuum applied to opening and heating/cooling the plates, an extruded hot plastics pipe is inserted into calibrator via opening and conveyed through opening in plates , whereupon it is urged by the vacuum against the cylindrical surface defined by plates to maintain its shape and the temperature of each plate is controlled to control the rate of cooling of the pipe precursor passing through. The pipe may be cooled at a relatively slow rate so that a pipe made from a relatively fast crystallising polymer crystalises and the crystallinity of the pipe along its extent and throughout its thickness is substantially constant. 1. A pipe having a length of at least 1 m and a residual stress of less than 5 MPa , said pipe comprising:a polymeric material which includes:(a) phenyl moieties;(b) ether and/or thioether moieties; and, optionally,(c) ketone and/or sulphone moieties,{'sub': '0.5', 'wherein the polymeric material exhibits a crystallinity half-life (t) at 15° C. above its glass transition temperature (Tg) of less than 1000 seconds;'}wherein the thickness of a wall which defines the pipe is in the range of 0.6 mm to 6 mm.2. A pipe according to claim 1 , wherein the pipe comprises a single extrusion claim 1 , has a substantially constant cross-section along its entire extent and has a length of at least 100 m.3. A ...

Pipe for water or gas

高められた溶融剛性を有する成形材料または成形部材の製造法

ПРИМЕНЕНИЕ КОМПОЗИЦИИ ДЛЯ КОНТАКТА СО СВЕРХКРИТИЧЕСКИМИ СРЕДАМИ

FIELD: chemistry. SUBSTANCE: invention relates to application of moulded component for contact with supercritical medium. Moulded component represents sleeve or tube and contains inner thermoplastic layer made of moulding mass. Moulding mass contains at least 50 wt % of components, wt. p.: a) from 0 to 99 of polyamide, obtained from combination of diamine and dicarboxylic acid, as well as ω-aminocarboxylic acid and respective lactam and b) from 1 to 100 of polyamide elastomer, selected from the group, including polyether/polyester-amide and polyetheramide, with the sum of weight parts of components a) and b) constituting 100. Moulding mass contains additional components, including minimum to 9 wt % of plasticiser. EFFECT: absence or small content of plasticiser makes it possible to nearly completely eliminate increase of rigidity and longitudinal product shrinkage. 13 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 543 205 C2 (51) МПК C08L 77/00 (2006.01) C08L 77/04 (2006.01) C08L 77/06 (2006.01) F16L 11/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011126756/05, 07.10.2009 (24) Дата начала отсчета срока действия патента: 07.10.2009 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ДОВЕ Андреас (DE), БОЙТ Райнхард (DE), БАУМАНН Франц-Эрих (DE) 01.12.2008 DE 102008044224.0 (43) Дата публикации заявки: 10.01.2013 Бюл. № 1 R U (73) Патентообладатель(и): ЭВОНИК ДЕГУССА ГМБХ (DE) (45) Опубликовано: 27.02.2015 Бюл. № 6 C 2 C 2 2008/122743 A2, 16.10.2008. RU 2319887 C2, 20.03.2008. RU 2319887 C2, 20.03.2008. US 2007/ 0036998 A1, 15.02.2007. DE 4408042 A1, 14.09.1995. DE 3914011 A1, 02.11.1989. US 5662975 A, 02.09.1997. EP 1300 620 A1, 09.04.2003. DE 10162968 A1, 11.07.2002. EP 0 855 431 A1, 29.07.1998. US 6 203920 B1, 20.03.2001. WO (см. прод.) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.07.2011 2 5 4 3 2 0 5 (86) Заявка PCT: R U 2 5 4 3 2 0 5 (56) Список документов, ...

Patent RU2016120731A3

`7ВУ’” 2016120731`” АЗ Дата публикации: 18.07.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж Я «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2016120731/04(032601) 28.10.2014 РСТЛО$2014/062596 28.10.2014 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 61/896,981 29.10.2013 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СТАТИСТИЧЕСКИЙ СОПОЛИМЕР ПРОПИЛЕНА И ЭТИЛЕНА, ПРИЕМЛЕМЫЙ ДЛЯ ТРУБ Заявитель: У.Р. ГРЕЙС ЭНД КО.-КОНН., 0$ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. п см. Примечания [ ] приняты во внимание следующие пункты: р [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) СОЗЕ 210/06 (2006.01) ЕТОГ. 9/12 (2006.01) ЕТОГ. 11/06 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) СО8Е 210/06, Е16Г, 9/12, ЕТОГ, 11/06 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепе, боозе, КОРТО, ИЗРТО, Уапдех, БД ВИНИТИ 6 ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, ...

ШЛАНГ

Изобретение относится к шлангу для использования в производстве строительного изделия из гипсового раствора. Способ изготовления гипсового изделия содержит этапы, на которых замешивают гипсовый раствор в смесителе, удаляют указанный гипсовый раствор из указанного смесителя через шланг на формовочный стол и отверждают указанный гипсовый раствор. При этом шланг содержит первую секцию, вторую секцию и третью секцию, расположенную между указанной первой секцией и указанной второй секцией. Первая секция имеет площадь поперечного сечения A1. Вторая секция имеет площадь поперечного сечения А2. При этом A1 по меньшей мере в два раза больше А2. Причем указанная первая секция гидравлически соединена с указанной второй секцией, а при использовании указанная первая секция расположена выше по потоку от указанной второй секции. Третья секция имеет площадь поперечного сечения А3. Причем указанная первая секция соединена с указанной третьей секцией посредством колена, при этом указанная первая секция имеет ...

СТАБИЛИЗИРОВАННЫЙ ПОЛИЭТИЛЕНОВЫЙ МАТЕРИАЛ

... 1. Труба, способная обеспечить время F по методике Jana Laboratories APTF-2, по меньшей мере, 1000 ч в следующих условиях: рН 6,8 (±0,1); содержание хлора 4,1 мг/л (±0,1); номинальная ORP 830 мВ; температура жидкости 110°С (±1); температура воздуха 110°С (±0,1); давление 70 фунт/кв.дюйм (±1); скорость потока 0,1 галлон США/мин (±10%); причем указанная труба включает в себя полиэтилен, имеющий плотность более чем приблизительно 0,925 г/см3, и где указанная труба включает в себя систему антиоксидантов, включающую два или несколько компонентов, и где система антиоксидантов включает, по меньшей мере, один антиоксидант из каждого из указанных классов а) первого класса антиоксидантов, включающего затрудненный фенол, соответствующий формуле где R1 и R5 могут независимо представлять собой -СН3, -СН(СН3)2 или -С(СН3)3 и R2, R3 и R4 могут независимо представлять собой Н или любую углеводородную или замещенную углеводородную группу, и b) второго класса антиоксидантов, включающего затрудненный фенол ...

ПРИМЕНЕНИЕ КОМПОЗИЦИИ ДЛЯ КОНТАКТА СО СВЕРХКРИТИЧЕСКИМИ СРЕДАМИ

FIELD: chemistry. SUBSTANCE: invention relates to application of moulded component for contact with supercritical medium. Moulded component represents sleeve or tube and contains inner thermoplastic layer made of moulding mass. Moulding mass contains at least 50 wt % of components, wt. p.: a) from 0 to 99 of polyamide, obtained from combination of diamine and dicarboxylic acid, as well as ω-aminocarboxylic acid and respective lactam and b) from 1 to 100 of polyamide elastomer, selected from the group, including polyether/polyester-amide and polyetheramide, with the sum of weight parts of components a) and b) constituting 100. Moulding mass contains additional components, including minimum to 9 wt % of plasticiser. EFFECT: absence or small content of plasticiser makes it possible to nearly completely eliminate increase of rigidity and longitudinal product shrinkage. 13 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 543 205 C9 (51) МПК C08L 77/00 (2006.01) C08L 77/04 (2006.01) C08L 77/06 (2006.01) F16L 11/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) СКОРРЕКТИРОВАННОЕ ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ Примечание: библиография отражает состояние при переиздании (21)(22) Заявка: 2011126756/05, 07.10.2009 (24) Дата начала отсчета срока действия патента: 07.10.2009 (73) Патентообладатель(и): ЭВОНИК ДЕГУССА ГМБХ (DE) 01.12.2008 DE 102008044224.0 R U Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ДОВЕ Андреас (DE), БОЙТ Райнхард (DE), БАУМАНН Франц-Эрих (DE) (43) Дата публикации заявки: 10.01.2013 Бюл. № 1 (15) Информация о коррекции: Версия коррекции №1 (W1 C2) (48) Коррекция опубликована: 2 5 4 3 2 0 5 R U (56) Список документов, цитированных в отчете о поиске: WO 2008/122743 A2, 16.10.2008. WO 2008/122743 A2, 16.10.2008. RU 2319887 C2, 20.03.2008. RU 2319887 C2, 20.03.2008. US 2007/ 0036998 A1, 15.02.2007. DE 4408042 A1, 14.09.1995. DE 3914011 A1, 02.11.1989. US 5662975 A, 02.09.1997. EP 1300 620 A1, 09.04.2003. DE 10162968 A1, 11.07.2002. ...

ПРИМЕНЕНИЕ КОМПОЗИЦИИ ДЛЯ КОНТАКТА СО СВЕРХКРИТИЧЕСКИМИ СРЕДАМИ

... 1. Применение формованной детали, содержащей формовочную массу, которая содержит по меньшей мере 50 мас.% следующих компонентов:a) от 0 до 99 мас.ч. полиамида, а такжеb) от 1 до 100 мас.ч. полиамидного эластомера, выбранного из группы, включающей простой/сложный полиэфирамид, простой полиэфирамид и их смеси,причем сумма массовых частей компонентов а) и b) составляет 100 и причем формовочная масса содержит максимум 9 мас.% пластификатора,для контакта со сверхкритической средой.2. Применение по п.1, отличающееся тем, что формовочная масса содержит максимум 7 мас.% пластификатора.3. Применение по п.1, отличающееся тем, что формовочная масса содержит максимум 5 мас.% пластификатора.4. Применение по п.1, отличающееся тем, что формовочная масса не содержит пластификатора.5. Применение по п.1, отличающееся тем, что формованная деталь является рукавом или трубой, которые используют для транспортирования сверхкритической среды и которые содержат формовочную массу в качестве внутреннего термопластичного ...

An exhaust system conduit for an internal combustion engine

... 1,129,287. Plastic pipes. WALKER MFG. CO. 12 Oct., 1965 [12 Oct., 1964], No. 43313/65. Heading F2P. [Also in Divisions B5 and F1] An I.C. engine exhaust pipe, e.g. downstream of the silencer, is formed of synthetic plastics material, e.g. an epoxy, phenolic or silicone resin including a curing agent such as amine, an anhydride or polyamide, which is flexible in a first stage of curing, when it is installed in a motor vehicle and clamped in the desired shape, and which becomes rigid in a second stage of curing which is effected after installation. The second stage may be initiated by heat, e.g. the flow of exhaust gases through the pipe, or by the external application of a chemical-curing agent. Suitable filler materials may be incorporated in the plastic material, e.g. asbestos, sand or fibreglass for strengthening, antimony trioxide to protect the pipe from the exhaust gas heat, or fillers which either heat insulate the pipe or conduct the exhaust gas heat through the pipe. The pipe wall ...

Cross-laminate film for irrigation pipe

A cross laminate film 20 having first and second orientation directions 21, 22 and an axis 30 may be used for a pipe 40 having a wall 42 , wherein an angle a between each of the first and second orientation directions 21, 22 and the axis may have a value between 50{ and 60{. The angle may be substantially equal to twice the neutral bias angle for the pipe. At least one of the layers may be a polymeric film selected from oriented high density polyethylene (HDPE), oriented high/ultra-high molecular high density PE (HMHDPE/UHMHDPE), oriented low density polyethylene (LDPE), or oriented linear low density polyethylene (LDPE).

Pipe

MULTILEVEL PLASTIC TUBE FOR PROMOTING LIQUIDS

RUBBER COMPOSITION FOR WATER HOSE, AND WATER HOSE OBTAINED USING SAME

A rubber composition for a water hose includes the following components (A) and (B), wherein the component (B) has a melt flow rate (MFR) of 1.0 g/10 min at a temperature of 190° C. and a load of 2.16 kg and the component (B) has a density of 0.870 to 0.908 g/cm: (A) an ethylene-propylene rubber, and (B) an ethylene-octene resin. 1. A rubber composition for a water hose , the rubber composition comprising:(A) an ethylene-propylene rubber, and(B) an ethylene-octene resinwherein the component (B) has a melt flow rate (MFR) of 1.0 g/10 min at a temperature of 190° C. and a load of 2.16 kg, and{'sup': '3', 'wherein the component (B) has a density of 0.870 to 0.908 g/cm.'}2. The rubber composition for a water hose according to claim 1 , wherein the content of the component (B) is 8 to 20 parts by weight per 100 parts by weight of the component (A).3. The rubber composition for a water hose according to claim 1 , wherein the rubber composition comprises both silica and a silane coupling agent.4. The rubber composition for a water hose according to claim 2 , wherein the rubber composition comprises both silica and a silane coupling agent.5. A water hose in a bent shape obtained by forming an unvulcanized hose using the rubber composition for a water hose according to and vulcanizing the unvulcanized hose which is inserted into a mandrel in the shape of a bending tube.6. A water hose in a bent shape obtained by forming an unvulcanized hose using the rubber composition for a water hose according to and vulcanizing the unvulcanized hose which is inserted into a mandrel in the shape of a bending tube.7. A water hose in a bent shape obtained by forming an unvulcanized hose using the rubber composition for a water hose according to and vulcanizing the unvulcanized hose which is inserted into a mandrel in the shape of a bending tube.8. A water hose in a bent shape obtained by forming an unvulcanized hose using the rubber composition for a water hose according to and vulcanizing ...

Fluorine-containing elastomer composition and molded article made of same

There is provided a polyol-crosslinkable fluorine-containing elastomer composition which is excellent in chemical resistance, solvent resistance (especially resistance to an acidic solvent) and fuel resistance (especially biofuel resistance) and is crosslinkable at the same crosslinking speed as in the case of using calcium hydroxide in a usual amount even without blending calcium hydroxide (or decreasing a blending amount of calcium hydroxide). The fluorine-containing elastomer composition comprises a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a silicate of an alkali metal.

Silicone Tubing and Method for Making and Using Same

Silicone tube structures are formed having a particular dimensional accuracy. In one embodiment, a silicone tube structure can include an extruded hollow body having an inner bore. The extruded hollow body can have an inner diameter, an outer diameter, and a length of at least approximately 20 m. The extruded hollow body can also have a dimensional accuracy that is measured by the standard deviation of the inner diameter being no greater than approximately 0.8% of an average inner diameter of the extruded hollow body over the length. In an embodiment, the silicone tube structure can be cut to form a number of silicone tubes.

Multilayer flexible tube

A flexible tube includes a first polymer layer and a second polymer layer adjacent to the first polymer layer. The first polymer layer includes a polyolefin, an ethylene vinyl acetate copolymer, an ethylene/norbornene copolymer, a styrenic block copolymer, a styrene butadiene copolymer, or combination thereof having a total organics content of less than about 12 μg/L per USP 34, Chapter 643. The second polymer layer includes a polyolefin, a styrenic block copolymer, a blend thereof, or combination thereof, wherein the second polymer layer has a shore A durometer of less than about 65. Further included is a method of forming the flexible tube.

Rubber/Resin Composite Hose

The present technology includes an inner tube, the inner tube having a resin layer as an innermost layer and a rubber layer adjacent to the innermost layer. A material used in the resin layer is a resin composition that includes a resin including at least an ionomer containing a metal carboxylate, and a material used in the rubber layer is a rubber composition that includes a rubber including at least an epoxidized rubber. 1. A rubber/resin composite hose comprising an inner tube , the inner tube including a resin layer as an innermost layer and a rubber layer adjacent to the innermost layer ,a material used in the resin layer being a resin composition that includes a resin including at least an ionomer containing a metal carboxylate, anda material used in the rubber layer being a rubber composition that includes a rubber including at least an epoxidized rubber.2. The rubber/resin composite hose according to claim 1 , wherein a quantity of the ionomer in the resin is from 10 to 100 mass % of a total quantity of the resin claim 1 , anda quantity of the epoxidized rubber in the rubber is from 10 to 100 mass % of a total quantity of the rubber.3. The rubber/resin composite hose according to claim 1 , wherein the epoxidized rubber is an epoxidized natural rubber.4. The rubber/resin composite hose according to claim 1 , wherein an epoxidization rate of the epoxidized rubber is from 2 to 75 mol %.5. The rubber/resin composite hose according to claim 1 , wherein the rubber further includes an acrylonitrile-butadiene rubber (NBR).6. The rubber/resin composite hose according to claim 1 , wherein the resin further includes a polyamide.7. The rubber/resin composite hose according to claim 6 , wherein the polyamide is at least one selected from the group consisting of polyamide 6 claim 6 , polyamide 11 claim 6 , polyamide 12 claim 6 , polyamide 4-6 claim 6 , polyamide 6-6 claim 6 , polyamide 6-10 claim 6 , polyamide 6-12 claim 6 , and polyamide MXD-6.8. The rubber/resin ...

Conduit with Latch System

A conduit system for protection of wiring or tubing comprising a tubular shaped conduit with latch system designed to allow insertion of electrical wiring without disconnection of the wiring or without threading the wiring through the conduit. The latch system is comprised of an internal latch, external latch or both and is formed to such that the conduit maintains its structural integrity while facilitating full and easy access to the electrical wiring contained within. 1. A conduit and latch system comprising a conduit of a substantially circular cross section , said conduit being axially elongated and characterized by an axial slit along the length of said duct whereby two conduit wall edges are formed and whereby said duct may be resiliently opened along the length thereof to permit the introduction of cables , pipes , wires and the like , and said conduit being formed to permit overlap of said conduit wall edges and said conduit comprising an integrated latch along the longitudinal length of said conduit with said latch positioned to accept engagement of at least one of said conduit edges along said axial slit.2. A conduit and latch system as set forth in wherein said latch is integral with the interior wall of said conduit.3. A conduit and latch system as set forth in wherein said latch is integral with the exterior wall of said conduit.4. A conduit and latch system as set forth in wherein said latch comprises a hooked protrusion.5. A conduit and latch system comprising a conduit of a substantially circular cross section claim 1 , said conduit being axially elongated and characterized by an axial slit along the length of said duct whereby two conduit wall edges are formed and whereby said duct may be resiliently opened along the length thereof to permit the introduction of cables claim 1 , pipes claim 1 , wires and the like claim 1 , and said conduit being formed to permit overlap of said conduit wall edges and said conduit comprising two integrated latches ...

Fluororubber composition

A fluororubber composition including a fluororubber having an iodine content of 10 to 90 mol % for the total mole of the polymer end groups and a carbon black (B), wherein a difference (δG′), represented by G′(1%)-G′(100%), is not lower than 120 kPa and not higher than 3,000 kPa, where G′(1%) denotes a shear modulus at a dynamic strain of 1% under an uncrosslinked state and G′(100%) denotes a shear modulus at a dynamic strain of 100% under an uncrosslinked state, and G′(1%) and G′(100%) are determined by a dynamic viscoelasticity test with a rubber process analyzer (RPA) in a condition that the measurement frequency is 1 Hz and the measurement temperature is 100° C.

RESIN HOSE AND METHOD FOR MANUFACTURING THE SAME

The invention is to provide a resin hose capable of sufficiently ensuring the flow rate of fluid flowing through the resin hose while ensuring flexibility of wiring. The resin hose includes a round portion having a round flow-passage; and a flat portion that includes a flat flow-passage and has a flow-passage cross-section area equal to or larger than a flow-passage cross-section area of a minimum inner diameter portion in the round portion, a short width of the flat flow-passage being smaller than an inner diameter of the minimum inner diameter portion and a long width of the flat flow-passage being larger than the inner diameter of the minimum inner diameter portion. 1. A resin hose comprising:a round portion having a round flow-passage; anda flat portion that includes a flat flow-passage and has a flow-passage cross-section area equal to or larger than a flow-passage cross-section area of a minimum inner diameter portion in the round portion, a short width of the flat flow-passage being smaller than an inner diameter of the minimum inner diameter portion and a long width of the flat flow-passage being larger than the inner diameter of the minimum inner diameter portion.2. The resin hose according to claim 1 , wherein the flat portion is manufactured using:a resin melting and molding process of molding an intermediate flat portion of an intermediate molded body, the intermediate flat portion having a flow-passage cross-section area larger than the flow-passage cross-section area of the flat portion, by introducing a molten resin into a metal mold having a flat-shaped inner peripheral surface and then solidifying the molten resin; anda press forming process of forming the flat portion by press forming the intermediate flat portion of the intermediate molded body to further reduce a short width of the intermediate flat portion in the intermediate molded body.3. The resin hose according to claim 2 , wherein the short width of the flat flow-passage of the intermediate ...

Vibration reducing rubber composition

Disclosed is a vibration reducing rubber composition, more specifically to a vibration reducing rubber composition that reduces inflow of vibration and noise generated from an engine into an interior of an automobile, and improves riding comfort, emotional quality and merchantable quality of the automobile, by providing a particular formulation of a heater hose composition, which comprises ethylene propylene rubber (EPDM), fast extruding furnace (FEF) carbon black and semi reinforcing furnace (SRF) carbon black.

DEVICE AND METHOD FOR REPAIRING PIPE LEAKAGE

We disclose an article of manufacture comprising a short section of PVC pipe with fittings. In its best embodiment, the pipe takes the form of a 1′-2′ section of PVC pipe fashioned into a U-bend, and the fittings take the form of an elbow joint glued onto each end of the U-bend. We further disclose a method of repairing cracked PVC piping using the article. The method involves cutting out a 4″-6″ section of piping, gluing the exposed ends of the broken piping as well as the elbow joints, squeezing the U-bend, positioning the squeezed article into the gap in broken piping, and releasing the U-bend to fit the elbow joints over the exposed ends of broken piping. The article has no vulnerable moving parts or O-rings, and it obviates the need to remove entire pipes. 1. A plumbing repair device , comprisinga U-bend of PVC pipe, comprising a first arm, a second arm substantially parallel to the first arm, and a substantially semi-circular bend connecting the first arm to the second arm;an end on each arm;the entire device lying in an imaginary plane, said plane containing an imaginary midline parallel to and equidistant from the first and second arms, and said plane also containing an imaginary axis perpendicular to the midline;a first elbow joint and a second elbow joint, each elbow joint having a proximal end and a distal end, each distal end having a center;the proximal end of the first elbow joint being secured to the end of the first arm, and the proximal end of the second elbow joint secured to the end of the second arm;such that the elbow joints are oriented with their distal ends facing in opposite directions, with the imaginary axis passing through the centers of the two distal ends;said device having a spring constant between 30 pounds per inch and 50 pounds per inch, as applied to a squeeze force displacing the ends of the arms along the imaginary axis toward the imaginary midline.2. A plumbing repair device , comprising a U-bend of PVC pipe between ½″ and 1″ in ...

TUBE, METHOD FOR PRODUCING TUBE, AND METHOD FOR STORING TUBE

Provided is a tube comprising a tetrafluoroethylene/fluoroalkyl vinyl ether copolymer, wherein the tube inner surface has a surface roughness Ra of 5 nm or less measured by atomic force microscopy (AFM) with an evaluation length set to 3 μm, and the tube has an amount of metals eluted from the tube inner surface of 0.30 ng/cmor less. 1. A tube comprising a tetrafluoroethylene/fluoroalkyl vinyl ether copolymer ,wherein the tube inner surface has a surface roughness Ra of 5 nm or less measured by atomic force microscopy (AFM) with an evaluation length set to 3 μm, and{'sup': '2', 'the tube has an amount of metals eluted from the tube inner surface of 0.30 ng/cmor less.'}2. The tube according to claim 1 , wherein the tube inner surface has an average spherulite size of 1 to 150 μm.3. The tube according to claim 1 , wherein the tube inner surface has an average spherulite size of more than 15 μm.4. The tube according to claim 1 , wherein the fluoroalkyl vinyl ether is perfluoro(propyl vinyl ether).5. The tube according to claim 1 , wherein the tube is used for transporting a high-purity chemical solution for manufacturing a semiconductor device.6. The tube according to claim 1 , wherein the tube is obtained by extruding the tetrafluoroethylene/fluoroalkyl vinyl ether copolymer claim 1 , while flowing a gas which has passed through a filter having a filtration accuracy of 5 nm or less into a hollow part of a tube extruded from the die equipped in an extruder.7. The tube according to claim 1 , wherein the content of a fluoroalkyl vinyl ether unit in the tetrafluoroethylene/fluoroalkyl vinyl ether copolymer is 1.0 to 8.0 mass % relative to the total monomer units.8. A method for producing the tube according to claim 1 , comprising claim 1 , by using an extruder in which a die is equipped claim 1 , extruding the tetrafluoroethylene/fluoroalkyl vinyl ether copolymer claim 1 , while flowing a gas which has passed through a filter having a filtration accuracy of 5 nm or less ...

Resin fuel tube

A resin fuel tube is provided, which includes at least one resin layer, wherein the resin layer is made of a resin composition comprising: (A) a polypropylene prepared through polymerization with the use of a metallocene catalyst; and (B) a polypropylene material having a melting point of 137° C. to 160° C., the resin composition having a mixing weight ratio of the components (A) and (B) satisfying (A)/(B)=95/5 to 50/50, wherein the resin layer has a structure such that a soft structural portion (Y) of the component (A) intrudes into a space between crystalline structural portions (X) of the component (B). Therefore, the resin fuel tube is light-weight, excellent in impact resistance and heat resistance, free from fuel leakage, and usable in an atmosphere at 130° C. or higher, for example, in an automotive engine room or the like.

Heat-Shrinkable Tube Having Tearable Properties

The disclosure provides a tube which is rarely broken and is stable during the process of the production of a heat-shrinkable tube having tearability in a length direction. The tube includes a melt-processable fluororesin and when the strain of the tube is defined as ε, the stress at the strain is defined as σ (MPa) and the strain ε is put on the horizontal axis and the stress σ is put on the longitudinal axis on a coordinate graph, each of a straight line ab and a straight line cd which are defined by four coordinate points a (0.4,8.8), b(0.4,2.4), c(1.0,9.9) and d(1.0,3.2) on the graph intersects with a mechanical property curve of the tube which is obtained by carrying out a tensile test under the conditions of an ambient temperature of 60° C., an initial chuck-to-chuck distance of 22±0.05 mm and a tensile speed of 5 mm/sec. 1. A heat-shrinkable tube having tearability comprising at least a melt-processable fluororesin , wherein a strain of the tube is represented as ε , a stress at the strain is represented as σ (MPa) , a horizontal axis on a coordinate graph is a strain ε , a vertical axis thereon is a stress σ , and each of a straight line ab and a straight line cd defined by four coordinate points on the graph , a (0.4 , 8.8) , b (0.4 , 2.4) , c (1.0 , 9.9) , and d (1.0 , 3.2) , intersects a mechanical property curve of the tube obtained through a measurement method comprising ,a tensile test being performed under conditions of an ambient temperature of 60° C., an initial chuck-to-chuck distance of 22±0.05 mm, and a tensile speed of 5 mm/sec.2. The heat-shrinkable tube having tearability according to claim 1 , wherein the fluororesin comprises at least a resin comprising at least three monomers of tetrafluoroethylene claim 1 , hexafluoropropylene claim 1 , and vinylidene fluoride as constituent monomers.3. The heat-shrinkable tube having tearability according to claim 2 , wherein the resin comprising at least three monomers of tetrafluoroethylene claim 2 , ...

Profile disconnection

A profile includes: a sidewall, a lumen for a fluid path, and an end, the profile including a thermoset material, wherein the profile includes a sealed end without an external bonding material, wherein the sealed end withstands a seal integrity pressure test of at least 1 psi, such as at least 5 psi, such as at least 10 psi, such as at least 15 psi, or even at least 20 psi air pressure for about 30 minutes under dry and wet conditions.

Propylene ethylene random copolymer suitable for pipe

A composition is provided which comprises a propylene ethylene random copolymer having a melt flow rate (MFR) (as determined according to ASTM D1238, 230° C., 2.16 Kg) of less than 1 g/10 min, a xylene solubles content of less than 7% by weight, an ethylene content of from 3 to 5 percent by weight of the copolymer, and a value equal to or greater than 92 for the product of the Koenig B value times the % mm triads measured on the xylene insoluble fraction of the random copolymer obtained by the wet method. Pipes made from the composition demonstrate improved pressure endurance.

Duct

A duct of a foamed blow-molded article that is constituted of a polyolefin-based resin with a bending elastic modulus of 800-1,300 MPa, that has an average apparent density (D) of 0.1 to 0.4 g/cm 3 and an average thickness (T) [cm] providing D×T 2 of 0.005 to 0.04 g/cm, and that has an outer surface side region and an inner surface side region having an average apparent density lower than that of the outer surface region.

RUBBER TUBE, AND METHOD OF PRODUCING THE SAME

A rubber tube has an inner surface at least partly roughed so that the ratio (Rz/D) of the maximum height Rz of the inner surface to the inner diameter D of the tube is not less than 0.038. The ratio (Rp/D) of the maximum peak height Rp of the inner surface to the inner diameter D of the tube may be not less than 0.019. The ratio (Rv/D) of the maximum valley depth Rv of the inner surface to the inner diameter D of the tube may be not less than 0.019. The ratio (Ra/D) of the arithmetic average roughness Ra of the inner surface to the inner diameter D of the tube may be not less than 0.0036. The ratio (Rq/D) of the root mean square height Rq of the inner surface to the inner diameter D of the tube maybe not less than 0.0046. Thus, the rubber tube has a reduced adhesiveness.

FLEXIBLE TUBING HAVING A STABLE FLOW RATE AND METHODS FOR MAKING AND USING IT

The present disclosure relates generally to flexible tubing, for example, suitable for use in peristaltic pumps. The present disclosure relates more particularly to flexible tubing having a stable flow rate despite being extruded from thermoplastic polymer and methods for making such tubing. In one aspect, at least 50% of the material volume of a flexible tubing of the disclosure is formed from a first polymer material that includes a continuous phase that includes polypropylene and a non-cross-linked styrene block copolymer elastomer miscible with the polypropylene, as well as, dispersed within the continuous phase (e.g., discontinuously dispersed within the continuous phase), a cross-linked rubber phase. The non-cross-linked styrene block copolymer elastomer is present in the first polymeric material in an amount in the range of 2 wt % to 15 wt %. In certain desirable embodiments of the flexible tubings described herein, the flexible tubing has a flow rate variation over the 480 hours of use of less than 20%. 2. The length of flexible tubing according to claim 1 , having a flow rate variation over 480 hours of less than 20% claim 1 , e.g. claim 1 , less than 15% claim 1 , or even less than 10%.3. The length of flexible tubing according to claim 1 , having a length of at least 1 m claim 1 , e.g. claim 1 , at least 2 m claim 1 , an inner diameter in the range of 0.5 mm to 40 mm and a wall thickness in the range of 0.5 mm to 15 mm.4. The length of flexible tubing according to claim 1 , having a liner layer at its inner surface.5. The length of flexible tubing according to claim 4 , wherein the material volume of the flexible tubing consists essentially of the first polymeric material claim 4 , or of the first polymeric material and the liner layer.6. The length of flexible tubing according to claim 1 , wherein at least 80% of the polypropylene is semicrystalline polypropylene.7. The length of flexible tubing according to claim 1 , wherein at least 5% of the ...

Pulling Device for Flexible Conduit Tubing

A pipe pulling device guides extruded plastic conduit tubing through a building structure. The device has a fastener body including a main shaft supporting a resilient expansion sleeve thereon that can be inserted into an open end of the tubing. A nut is threaded onto the main shaft for axially compressing the expansion sleeve between the nut and a fastener head at the inner end of the main shaft to radially expand the sleeve within the tubing and frictionally grip the fastener body relative to the tubing. The nut is tapered outwardly and supports an elongate, rigid tip body extending longitudinally outward from the tubing to guide insertion of the tubing through cavities in the building structure. Various accessories can be secured to the nut or the tip body to assist insertion of the pipe pulling device through different building structures. 1. A pipe pulling device for guiding conduit tubing through a building structure , the pipe pulling device comprising:a fastener body including a main shaft having a shaft diameter extending longitudinally between a head at a first end of the main shaft which is enlarged relative to the shaft diameter and an opposing second end of the main shaft in which at least a portion of the main shaft adjacent the second end is externally threaded;an expansion sleeve supported about the main shaft having an outer diameter which is receivable within an open end of the conduit tubing;a nut threaded onto the second end of the main shaft such that the expansion sleeve is longitudinally abutted between the head of the fastener body and the nut, the nut being longitudinally tapered from a first end of the nut adjacent the expansion sleeve having an outer diameter which is greater than an outer diameter of the conduit tubing to a second end of the nut having an outer diameter which is less than the outer diameter of the first end of the nut;the expansion sleeve being adapted to be expanded radially into frictional engagement with the conduit ...

Rubber composition, method for preparing same, fuel hose and fuel feed circuit incorporating same

The invention in relates in particular to a rubber composition able to be extruded to form an inner layer of a fuel hose for a motor vehicle, a method for preparing this composition, this hose and a fuel feed circuit of a motor vehicle incorporating it. This composition is based on at least one fluoroelastomer (FKM) and includes a filler and a micronised powder of at least one fluorinated thermoplastic polymer which are dispersed in said at least one fluoroelastomer. According to the invention, the composition includes said micronised powder according to a quantity greater than 20 phr (phr: parts by weight per 100 parts of elastomer(s)), and the filler includes at least one inorganic filler having lamellas which has an aspect ratio greater than 30 and which is based on a phyllosilicate chosen from kaolinite and micas, or is based on a talc.

Crosslinked polyethylene articles and processes to produce same

A high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. A method for producing the plastic material is also provided. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation.

Crosslinked polyethylene process

A method for producing a high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation.

Stabilized polyethylene material

Pipe comprising ethylene base polymer

The pipe of the present invention comprises an ethylene base polymer comprising ethylene and an α-olefin having 3 to 20 carbon atoms, wherein (A) a maximum value of the residual stress is 0.13 MPa or less; (B) the crystallinity is 0.630 to 0.850; (C) a gradient of the crystallinity against a thickness of the pipe is 0.465 or less; and (D) the pipe has a thickness of 5 to 50 mm. It is excellent in a durability, a rigidity and an impact resistance and suited to uses for large diameter pipes receiving a high internal pressure.

Crosslinked polyethylene articles and processes to produce same

A high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. A method for producing the plastic material is also provided. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation.

多層撓性管材

Crosslinked polyethylene articles and processes to produce same

A high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. A method for producing the plastic material is also provided. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation.

Crosslinked polyethylene process

A method for producing a high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation.

Crosslinked polyethylene articles and processes to produce same

超高分子量聚乙烯多层共挤矿用输送管及其制备方法

本发明公开了一种超高分子量聚乙烯多层共挤矿用输送管及其制备方法，包括超高分子量聚乙烯内层，在超高分子量聚乙烯内层外设有改性聚合物层，在改性聚合物层外设有功能聚合物外层；其中改性聚合物层的材料是经过加入了填料改性的聚合物，填料与聚合物的质量比为5:95～40:60。本发明采用多层共挤法制备出的矿用输送管，内外层为超高分子量聚乙烯，其具有超强的耐磨性、自润滑性，强度比较高、化学性质稳定、抗老化性能强等性能；中间层采用填料改性聚合物材料；外层采用聚合物材，使得其具有抗静电、强度高、抗冲击等优异的性能。为此，本发明人通过大量的实验论证得出了此实验方案。通过对超高分子量聚乙烯、填料、聚合物的含量来控制制品的综合性能，通过对工艺条件的优化，得到性能较优的矿用输送管。

Multilayer flexible tubing

A flexible tube includes a first layer comprising a polyolefin material having a flexural modulus of not greater than 150 MPa and includes a second layer directly bonded to and in direct contact with the first layer. The second layer comprising a blend of propylenic polymer and styrenic block copolymer.

Multilayer flexible tubing

A flexible tube includes a first layer comprising a polyolefin material having a flexural modulus of not greater than 150 MPa and includes a second layer directly bonded to and in direct contact with the first layer. The second layer comprising a blend of propylenic polymer and styrenic block copolymer.

Multilayer flexible tubing

A flexible tube includes a first layer comprising a polyolefin material having a flexural modulus of not greater than 150 MPa and includes a second layer directly bonded to and in direct contact with the first layer. The second layer comprising a blend of propylenic polymer and styrenic block copolymer.

Multilayer flexible tubing

A flexible tube includes a first layer comprising a polyolefin material having a flexural modulus of not greater than 150 MPa and includes a second layer directly bonded to and in direct contact with the first layer. The second layer comprising a blend of propylenic polymer and styrenic block copolymer.

热塑性树脂组合物

提供一种热塑性树脂组合物，其为了改善聚酰胺树脂的低温耐久性(重复疲劳性)，在聚酰胺树脂基质中分散填充有低温耐久性优良的改性橡胶，该组合物中即使大量填充改性橡胶也能维持流动性，能够进行薄膜制膜，且低温耐久性优良。本发明的特征在于，是含有聚酰胺树脂(A)和具有酸酐基或环氧基的改性橡胶(B)的热塑性树脂组合物，利用具有能与酸酐基或环氧基反应的官能团和能与酰胺键或羟基形成氢键的官能团的氢键性化合物(C)对具有酸酐基或环氧基的改性橡胶(B)进行改性。另外，聚酰胺树脂(A)优选利用能与聚酰胺树脂的末端氨基结合的化合物进行改性。该热塑性树脂组合物适于在轮胎、软管等的制造中使用。

交联聚乙烯制品及其制备方法

提供了高强度、挠性的交联聚乙烯(PEX)材料，其中基础聚合物与聚合物改性剂掺混，该聚合物改性剂影响所述聚合物的无定形区，而保持所述基础聚合物的结晶部分几乎不受影响。因此，无定形区的密度降低，这导致更挠性的最终产物，而所述聚合物的控制基础聚合物强度的交联的分子结构和/或结晶部分保持是强的。聚合物改性剂可以包含烃流体例如PAO、第III组基础原料或气至液体烃。还提供了塑性材料的制备方法。所述塑性材料特别可用于制备输送气体、液体等的配管、管道和导管，以及电线和电缆涂层例如护套和绝缘体。

Композиция полиамидной смолы и формованный продукт

Изобретение относится к композиции полиамидной смолы, предназначенной для получения формованного продукта. Композиция полиамидной смолы содержит: (А) полиамид, содержащий звено дикарбоновой кислоты и диаминовое звено, включающее не менее чем 30 мол.% м-ксилилендиаминового звена, (В) соединение на основе ароматического вторичного амина и (С) соединение на сераорганической основе, где смешиваемое количество соединения на сераорганической основе (С) составляет от 0,2 до 5 мас.ч. в расчете на 100 мас.ч. полиамида, и массовое соотношение (В)/(С) в композиции полиамидной смолы находится в диапазоне от 0,1 до 5,0. Композиция характеризуется коэффициентом кислородопроницаемости, не большим чем 1 см 3 ·мм/м 2 ·день·атм, при 23°С и 75% относительной влажности (ОВ). Описан также формованный продукт, такой как шланг или труба. Технический результат - улучшенная стойкость к термическому старению при одновременном сохранении характеристик проницаемости. 2 н. и 19 з.п. ф-лы, 1 табл., 23 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C08L 77/06 C08L 77/10 C08K 5/18 C08K 5/36 C08G 69/26 (13) 2 545 341 C2 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011154029/05, 09.06.2010 (24) Дата начала отсчета срока действия патента: 09.06.2010 (72) Автор(ы): МИТАДЕРА Дзун (JP), КУРОКАВА Масаси (JP) 09.06.2009 JP 2009-138490 (43) Дата публикации заявки: 20.07.2013 Бюл. № 20 R U (73) Патентообладатель(и): МИЦУБИСИ ГЭС КЕМИКАЛ КОМПАНИ, ИНК. (JP) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 27.03.2015 Бюл. № 9 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.01.2012 C 2 C 2 B1, 26.05.1998. JP 2006-028327 A, 02.02.2006. RU 2331656 C2, 20.08.2008. JP 2007-039577 A, 15.02.2007; . JP 59-27948 A, 14.02.1984. JP 2008056766 A, 13.03.2008. JP 2004-181629 A, 02.07.2004. JP 2004-143447 A, 20.05.2004. SU 1778115 A1, 30.11.1992 (86) Заявка PCT: JP 2010/059794 (09.06 ...

热塑性树脂组合物的制造方法

一种热塑性树脂组合物的制造方法，其包括如下工序，即，(I)通过使酸酐改性或环氧改性的橡胶(A)与乙烯-乙烯醇共聚物树脂(B)进行熔融混炼，由此制备在乙烯-乙烯醇共聚物树脂(B)中分散了酸酐改性或环氧改性的橡胶(A)的第一树脂组合物的工序；(II)通过使可交联的弹性体(C)与聚酰胺树脂(D)进行熔融混炼的同时使其交联，由此制备在聚酰胺树脂(D)中分散了交联弹性体粒子的第二树脂组合物的工序；(III)使第一树脂组合物与第二树脂组合物进行熔融混合的工序。该热塑性树脂组合物具有优异的气体遮挡性、低温耐久性和耐疲劳性。

一种耐老化的多层管

本发明公开了一种耐老化的多层管，耐老化的多层管分为三层，最外层为厚度1.3mm～1.7mm的脲醛树脂层、第二层为厚度1.5mm～1.9mm的丙烯腈层、第三层为厚度3.3mm～3.9mm的丙基纤维素层。多层管具有良好的耐老化特性。

树脂制燃料管

一种树脂制燃料管，其具备至少1个树脂层，上述树脂层由含有用茂金属系催化剂聚合的聚丙烯(A)和熔点为137～160℃的聚丙烯系材料(B)、上述(A)与(B)的重量混合比在[(A)/(B)]＝95/5～50/50的范围的树脂组合物形成，具有在由上述(B)形成的晶体组织(X)间混入了由上述(A)形成的软质组织(Y)的结构。因此，轻量且耐冲击性优异、并且不产生燃料泄漏，能够在如汽车的发动机室内等的130℃以上的环境下使用，耐热性也优异。

Multilayered tube and medical supply comprising multilayered tube

A tube having a multilayer structure composed of at least two layers which differ from each other in composition and each comprises a resin composition comprising a polypropylene resin and at least one copolymer selected from the group consisting of hydrogenated block copolymers obtained by hydrogenating a block copolymer comprising a polymer block derived from a vinyl aromatic compound and an isoprene and/or butadiene polymer block and of hydrogenated copolymers obtained by hydrogenating a copolymer of a vinyl aromatic compound and butadiene. The multilayered tube is excellent in flexibility and nonkinking properties and withstands high-pressure steam sterilization. It generates no harmful gases upon incineration and is highly bondable to other tubes by fusion or with a solvent. It is usable as a multilayered medical tube.

Butene-based polymer composition

Multilayer flexible tube

Crosslinked polyethylene product and preparation method thereof

提供了高强度、挠性的交联聚乙烯(PEX)材料，其中基础聚合物与聚合物改性剂掺混，该聚合物改性剂影响所述聚合物的无定形区，而保持所述基础聚合物的结晶部分几乎不受影响。因此，无定形区的密度降低，这导致更挠性的最终产物，而所述聚合物的控制基础聚合物强度的交联的分子结构和/或结晶部分保持是强的。聚合物改性剂可以包含烃流体例如PAO、第III组基础原料或气至液体烃。还提供了塑性材料的制备方法。所述塑性材料特别可用于制备输送气体、液体等的配管、管道和导管，以及电线和电缆涂层例如护套和绝缘体。

Resin fuel tube

Stabilized polyethylene material

Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

Stabilized polyethylene material

Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

Stabilized polyethylene material

Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

Stabilized polyethylene material

Stabilized polyethylene material

本发明涉及稳定的聚乙烯材料，其提供良好平衡地结合热、机械和加工性能且在氯化水环境中会保持它们的物理性质。本发明还涉及一种管道，包括乙烯α-烯烃共聚体和在热水环境中提供抗提取性并且还对管道内部水中的氯和与管道外部接触的氧都提供抗氧化性的抗氧化系统且该管道具有至少1000小时的F时间。本发明提供抗氧化剂添加剂的特定结合显示出在延长氯化水系统中的塑料管的氧化还原时间中的协同效果。

Stabilized polyethylene material

Stabilized polyethylene material

Una tubería que comprende: una resina de polietileno, en la que dicha resina de polietileno tiene una densidad de al menos 0,925 g/cc y una densidad máxima de 0,965 g/cc, un índice de fusión (I2) en el intervalo de 0,05 a 5 g/10 minutos; y un sistema antioxidante, en el que dicho sistema antioxidante comprende: al menos un antioxidante de una primera clase de antioxidantes que es 3,3',3'',5,5',5''-hexa-terc-butil-.alfa.,.alfa.',.alfa.''-(mesitilen-2,4,6-triil)tri-p-cresol; y al menos un antioxidante de un segunda clase de antioxidantes que es pentaeritritol tetrakis(3-(3,5-di-terc-butil-4-hidroxifenil)propionato) u octadecil-3-(3,5-di-terc.butil-4-hidroxifenil)-propionato; en la que dicha tubería es capaz de obtener un tiempo F en el Procedimiento APTF-2 de Jana Laboratories de al menos 1.000 horas, bajo las siguientes condiciones: pH 6,8 (±0,1); cloro 4,1 mg/l (±0,1); ORP Nominal 830 mV; temperatura de fluido 110ºC (±1); temperatura del aire 110ºC (±1); presión 482,63 KPa (70 psig)(±1); caudal 63,09 cc/sg (0,1 galones US/min)(±10 por ciento). A pipe comprising: a polyethylene resin, wherein said polyethylene resin has a density of at least 0.925 g / cc and a maximum density of 0.965 g / cc, a melt index (I2) in the range of 0, 05 to 5 g / 10 minutes; and an antioxidant system, wherein said antioxidant system comprises: at least one antioxidant of a first class of antioxidants that is 3,3 ', 3' ', 5,5', 5 '' - hexa-tert-butyl-. alpha.,. alpha. ',. alpha .''- (mesitylene-2,4,6-triyl) tri-p-cresol; and at least one antioxidant of a second class of antioxidants which is pentaerythritol tetrakis (3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate) or octadecyl-3- (3,5-di-tert.butyl -4-hydroxyphenyl) -propionate; wherein said pipe is capable of obtaining an F time in the Jana Laboratories APTF-2 Procedure of at least 1,000 hours, under the following conditions: pH 6.8 (± 0.1); chlorine 4.1 mg / l (± 0 ...

Stabilized polyethylene material

Stabiliserte polyetylenmaterialer som frembyr en fordelaktig balansert kombinasjon av termiske, mekaniske og bearbeidingsegenskaper og som opprettholder sine fysiske egenskaper i klorbehandlede vannmiljøer beskrives. Materialene inkluderer et antioksidantsystem med komponenter for å tilveiebringe ekstraksjonsresistens i varmtvannsmiljøer og tilveiebringer ytterligere oksidasjonsresistens overfor både klor i vannet i det indre av røret og oksygen i kontakt med rørets utside.

Stabilized polyethylene material

Stabilized polyethylene material

Stabilized polyethylene material

本发明公开了提供良好平衡地结合热、机械和加工性能的稳定聚乙烯材料，并且其在氯化水环境中会保持它们的物理性质。该材料包括其组分在热水环境中提供抗提取性并且还对管道内部水中的氯和与管道外部接触的氧都提供抗氧化性的氧化系统。

Stabilized polyethylene material

本发明涉及稳定的聚乙烯材料，其提供良好平衡地结合热、机械和加工性能且在氯化水环境中会保持它们的物理性质。本发明还涉及一种管道，包括乙烯α-烯烃共聚体和在热水环境中提供抗提取性并且还对管道内部水中的氯和与管道外部接触的氧都提供抗氧化性的抗氧化系统且该管道具有至少1000小时的F时间。本发明提供抗氧化剂添加剂的特定结合显示出在延长氯化水系统中的塑料管的氧化还原时间中的协同效果。

Stabilized polyethylene material

Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

Stabilized polyethylene material

Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

Stabilized polyethylene material

Stabilized polyethylene material

Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

Stabilized polyethylene material

Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

Stabilized polyethylene material

Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.

Flexible tube of thermoplastic resin having poor melt flowability and production method and apparatus thereof

Disclosed is a method and apparatus for producing a flexible tube of a thermoplastic resin having poor melt flowability, the tube having an intrinsic viscosity of at least 3.5 dl/g, a tensile strength at break of 150 kg/cm 2 , a breaking time at hot internal pressure creep of at least 200 hours, an outer diameter of 50 mmφ or less, and a ratio of the outer diameter to the wall thickness of 40 or less. This tube can be prepared from a thermoplastic resin having poor melt flowability by melting the thermoplastic resin having poor melt flowability in a screw extruder, and melt-extruding the molten thermoplastic resin from a tube die having an L/D of at least 5 provided at a mandrel rotatable with the rotation of the screw.

Propylene ethylene random copolymer suitable for pipe

本发明提供了一种包含丙烯乙烯无规共聚物的组合物，所述共聚物的熔体流动速率(MFR)低于1g/10min(根据ASTM D1238，在230℃和2.16Kg下测定)，二甲苯可溶物含量小于7重量％，乙烯含量为所述共聚物的3重量％至5重量％，并且Koenig B值乘以％mm三联体所得乘积的值等于或大于92，其中所述Koenig B值和所述％mm三联体为通过湿法得到的所述无规共聚物的二甲苯不溶性部分的Koenig B值和％mm三联体。由所述组合物制成的管道具有改善的压力耐久性。

Propylene ethylene random copolymer suitable for pipe

Propylene ethylene random copolymer suitable for pipe

A composition is provided which comprises a propylene ethylene random copolymer having a melt flow rate (MFR) (as determined according to ASTM D1238, 230° C., 2.16 Kg) of less than 1 g/10 min, a xylene solubles content of less than 7% by weight, an ethylene content of from 3 to 5 percent by weight of the copolymer, and a value equal to or greater than 92 for the product of the Koenig B value times the % mm triads measured on the xylene insoluble fraction of the random copolymer obtained by the wet method. Pipes made from the composition demonstrate improved pressure endurance.

Propylene ethylene random copolymer suitable for pipes

本发明提供了一种包含丙烯乙烯无规共聚物的组合物，所述共聚物的熔体流动速率(MFR)低于1g/10min(根据ASTM D1238，在230℃和2.16Kg下测定)，二甲苯可溶物含量小于7重量％，乙烯含量为所述共聚物的3重量％至5重量％，并且Koenig B值乘以％mm三联体所得乘积的值等于或大于92，其中所述Koenig B值和所述％mm三联体为通过湿法得到的所述无规共聚物的二甲苯不溶性部分的Koenig B值和％mm三联体。由所述组合物制成的管道具有改善的压力耐久性。

Propylene ethylene random copolymer suitable for pipe

Propylene ethylene random copolymer suitable for pipe

A composition is provided which comprises a propylene ethylene random copolymer having a melt flow rate (MFR) (as determined according to ASTM D1238, 230°C, 2.16 Kg) of less than 1 g/10 min, a xylene solubles content of less than 7% by weight, an ethylene content of from 3 to 5 percent by weight of the copolymer, and a value equal to or greater than 92 for the product of the Koenig B value times the %mm triads measured on the xylene insoluble fraction of the random copolymer obtained by the wet method. Pipes made from the composition demonstrate improved pressure endurance.

Multilayer Flexible Tubing

一种挠性管包括一个第一层，该第一层包括具有不大于150MPa的挠曲模量的一种聚烯烃材料，并且该挠性管包括直接结合到该第一层上并且与其直接相接触的一个第二层。该第二层包括丙烯类聚合物和苯乙烯类嵌段共聚物的一种共混物。

Cold-resistant high impact strength unplasticized polyvinyl chloride (PVC-U) composite pipe and preparation method thereof

本发明涉及一种耐寒高抗冲PVC-U复合管材及其制备方法，该管材包括三层结构，依次为PVC内层、发泡PE中间层及PE外层，制备方法包括以下步骤：将PVC层的原料混合均匀，加入到PVC管材生产线，经挤出、定型、冷却、牵引、切割等工序得到管道内层；通过复合生产线在PVC内层上复合发泡PE中间层，同时在中间层上复合一层PE外层，即得到成品，本发明极大的提高了管道的耐寒性、抗冲击性能及保温性能，增强了塑料管道对环境的适应能力，同时也解决了PVC-U管道耐寒性差的缺点，集成了PVC、PE管道的优越性能。

Fluororubber composition and molded article

Provided is a fluororubber composition containing (a) a polyol crosslinkable fluororubber, (b) a crosslinking agent for polyol crosslinking, (c) a crosslinking promoter, and (d) at least one acid acceptor selected from the group consisting of basic magnesium carbonate and magnesium phosphate, wherein the contained amount of divalent metal oxides is less than 1 part by mass with respect to 100 parts by mass of the fluororubber (a).

Fluororubber composition and molded article

提供一种氟橡胶组合物，其含有(a)能够进行多元醇交联的氟橡胶、(b)多元醇交联用交联剂、(c)交联促进剂以及(d)选自由碱式碳酸镁和磷酸镁组成的组中的至少一种酸接受剂，相对于氟橡胶(a)100质量份，2价金属氧化物的含量小于1质量份。

Multilayer flexible tube

Multilayer flexible tube

本发明提供了一种柔性管，其包括第一聚合物层和与所述第一聚合物层相邻的第二聚合物层。所述第一聚合物层包含根据USP34，第643章的总有机物含量小于约12μg/mL的聚烯烃、乙烯乙酸乙烯酯共聚物、乙烯/降冰片烯共聚物、苯乙烯嵌段共聚物、苯乙烯丁二烯共聚物或它们的组合。第二聚合物层包含聚烯烃、苯乙烯嵌段共聚物、它们的共混物或它们的组合，其中所述第二聚合物层具有小于约65的肖氏A硬度。本发明还包括一种形成所述柔性管的方法。

Use of a composition for contact with supercritical media

Eine Formmasse, die zu mindestens 50 Gew.-% folgende Bestandteile enthält: a) 0 bis 99 Gew.-Teile Polyamid sowie b) 1 bis 100 Gew.-Teile Polyamidelastomer, ausgewählt aus der Gruppe Polyetheresteramid und Polyetheramid, wobei die Summe der Gewichtsteile 100 ergibt und wobei die Formmasse 0 bis 9 Gew.-% Weichmacher enthält, wird zur Herstellung eines Formteils für den Kontakt mit einem überkritischen Medium verwendet und vorzugsweise zur Herstellung einer inneren Thermoplastschicht in einem Schlauch oder Rohr, in dem ein überkritisches Medium befördert wird. Wegen des fehlenden oder geringen Weichmachergehalts treten Probleme wie Versteifung und Längenschrumpfung nicht in nennenswertem Umfang auf. A molding composition containing at least 50 wt .-% of the following constituents: a) 0 to 99 parts by weight of polyamide and b) 1 to 100 parts by weight of polyamide elastomer selected from the group of polyetheresteramide and polyetheramide, wherein the sum of parts by weight 100 and wherein the molding composition contains 0 to 9% by weight of plasticizer is used to make a molding for contact with a supercritical medium, and preferably to produce an inner thermoplastic layer in a hose or tube in which a supercritical medium is conveyed. Because of the lack of or low plasticizer content, problems such as stiffening and longitudinal shrinkage do not occur to any appreciable extent.

Transformation-stable composition comprising viscous polyamide, production thereof and use of same

The invention relates to the use of at least one catalyst, at least one copper heat stabiliser and at least one oligo- or poly-carbodiimide with a matrix including at least one polyamide, in order to form a composition that has a good melt viscosity and is stable during transformation, in particular during extrusion.

Use of a composition for the contact with supercritical media

The invention relates to a molding compound at least 50 wt.-% of the content of which is made up of the following components: a) 0 to 99 parts by weight of polyamide and b) 1 to 100 parts by weight of a polyamide elastomer, selected from the group including polyether ester amide and polyether amide, the sum of the parts by weight being 100 and the molding compound containing 0 to 9 wt.-% of a plasticizer, and which is used to produce a molded part for contact with a supercritical medium, especially to produce an inner thermoplastic layer in a tube or pipe carrying a supercritical medium. Problems such as stiffening and longitudinal shrinkage are hardly encountered thanks to the complete lack of plasticizer or very low plasticizer content.

Transformation-stable composition comprising viscous polyamide, production thereof and use of same

본 발명은 양호한 용융 점도를 가지며 변형 동안, 특히 압출 동안 안정한 조성물을 형성하기 위한, 하나 이상의 폴리아미드를 포함하는 매트릭스를 갖는 하나 이상의 올리고- 또는 폴리카르보디이미드, 하나 이상의 구리-기재 열 안정화제 및 하나 이상의 촉매의 용도에 관한 것이다. The present invention relates to at least one oligo- or polycarbodiimide having a matrix comprising at least one polyamide, at least one copper-based heat stabilizer and to the use of one or more catalysts.

Use of a composition for the contact with supercritical media

包含至少50重量%以下组分的成型物料用于制备与超临界介质接触的成型件，并且优选用于制备其中传送超临界介质的软管或管中的内侧热塑性塑料层：a)0－99重量份的聚酰胺，和b)1－100重量份的选自聚醚酯酰胺和聚醚酰胺的聚酰胺弹性体，其中重量份总和为100并且其中成型物料包含0－9重量%的增塑剂。无或低增塑剂含量消除了任何显著问题例如变硬和纵向收缩的出现。

Flexible tube

유연성 튜브는 약 1.0 고유 점도 (IV) 이상의 분자량을 가지는 폴리염화비닐 및 바이오-계 가소제의 고분자 조성물을 포함한다. 또한, 유연성 튜브 제조 방법이 제공된다. 상기 방법은 고분자 조성물을 형성하기 위하여 약 1.0 고유 점도 (IV) 이상의 분자량을 가지는 폴리염화비닐 및 바이오-계 가소제와의 컴파운딩 단계 및 고분자 조성물을 유연성 튜브로 압출하는 단계를 포함한다. The flexible tube comprises a polymer composition of polyvinyl chloride and a bio-based plasticizer having a molecular weight of at least about 1.0 intrinsic viscosity (IV). Also provided is a method of making a flexible tube. The method includes compounding with polyvinyl chloride and a bio-based plasticizer having a molecular weight of at least about 1.0 intrinsic viscosity (IV) to form a polymer composition and extruding the polymer composition into a flexible tube.

Fuel system components

Fuel system components comprising polymer compositions containing functionalized graphene sheets. The components are formed from the polymer compositions or are coated with the polymer composition.

Fuel system components

Fuel system components comprising polymer compositions containing functionalized graphene sheets. The components are formed from the polymer compositions or are coated with the polymer composition.

Thermoplastic resin composition

提供一种热塑性树脂组合物，其为了改善聚酰胺树脂的低温耐久性(重复疲劳性)，在聚酰胺树脂基质中分散填充有低温耐久性优良的改性橡胶，该组合物中即使大量填充改性橡胶也能维持流动性，能够进行薄膜制膜，且低温耐久性优良。本发明的特征在于，是含有聚酰胺树脂(A)和具有酸酐基或环氧基的改性橡胶(B)的热塑性树脂组合物，利用具有能与酸酐基或环氧基反应的官能团和能与酰胺键或羟基形成氢键的官能团的氢键性化合物(C)对具有酸酐基或环氧基的改性橡胶(B)进行改性。另外，聚酰胺树脂(A)优选利用能与聚酰胺树脂的末端氨基结合的化合物进行改性。该热塑性树脂组合物适于在轮胎、软管等的制造中使用。

Thermoplastic elastomer tubing and method to make and use same

열가소성 탄성체 튜브는 매트릭스 내부에 배치되는 열가소성 탄성체 성분을 포함한다. 실시태양에 있어서, 열가소성 탄성체 성분은 매트릭스 내부에서 다수의 도메인을 가지는 열가소성 탄성체 상으로 존재한다. 열가소성 탄성체 성분 도메인의 적어도 대략 50%는 대략 1.5 이하의 종횡비를 가진다. 특정 실시태양에 있어서, 열가소성 탄성체 튜브는 적어도 대략 20 wt%의 열가소성 탄성체 성분 및 대략 50 wt% 이하의 폴리올레핀 성분을 포함한다. 일부 실시태양들에 있어서, 열가소성 탄성체 성분은 스티렌을 포함한다. The thermoplastic elastomer tube comprises a thermoplastic elastomer component disposed within the matrix. In an embodiment, the thermoplastic elastomer component is present on a thermoplastic elastomer having a plurality of domains within the matrix. At least about 50% of the thermoplastic elastomer component domains have an aspect ratio of about 1.5 or less. In certain embodiments, the thermoplastic elastomer tube comprises at least about 20 wt% thermoplastic elastomer component and up to about 50 wt% polyolefin component. In some embodiments, the thermoplastic elastomer component comprises styrene.

Rubber composition for water hose, and water hose obtained using same

The purpose of the present invention is to provide a rubber composition for a water hose, said rubber composition being capable of providing a thin, lightweight water hose without generating thickness unevenness (wrinkles and bumps). Specifically provided is a rubber composition for a water hose, which contains the components (A) and (B) described below. The component (B) has a melt flow rate (MFR) at 190˚C under a load of 2.16 kg of 1.0 g/10 min and a density of 0.870-0.908 g/cm 3 . (A) an ethylene-propylene rubber (B) an ethylene-octene resin

Production of sand blend

FIELD: process engineering. SUBSTANCE: invention relates to production of sand blend or moulded article. Sand blend is composed on the mix of polyamide and master batch containing carbonic acid, particularly, with phenols or alcohols, and polyether amide. Polyamide has end groups, at least 50% of the latter are composed of end amine groups. Polyamide amount makes 10-99 wt %. Amount of polyether amide in master batch makes 1-90 wt %. Polyamide end groups, at least 50% thereof, are composed of end amine groups. This mix is stored and transported, if required. This mix is mixed in the melt at shear stress. Fused mix is unloaded and hardened to get sand batch of moulded article. Said moulded article represents a channel, plate or film. EFFECT: produced article features higher content of end amino groups, higher resistance to hydrolysis. 9 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 535 221 C2 (51) МПК C08L 77/10 (2006.01) C08L 77/12 (2006.01) C08L 69/00 (2006.01) C08J 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011126754/05, 17.11.2009 (24) Дата начала отсчета срока действия патента: 17.11.2009 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ДОВЕ Андреас (DE), БОЙТ Райнхард (DE), БАУМАНН Франц-Эрих (DE) 01.12.2008 DE 102008044225.9 (43) Дата публикации заявки: 10.01.2013 Бюл. № 1 R U (73) Патентообладатель(и): ЭВОНИК ДЕГУССА ГМБХ (DE) (45) Опубликовано: 10.12.2014 Бюл. № 34 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.07.2011 C 2 C 2 1690889 A1 16.08.2006. EP 1512710 A2 09.03.2005. US 7005481 B1 28.02.2006. EP 1690890 A1 16.08.2006. EP 1741540 A1 10.01.2007. RU 2152411 C1 (ИНСТИТУТ МЕХАНИКИМЕТАЛЛОПОЛИМЕРНЫХ СИСТЕМ ИМ. В.А. БЕЛОГО НАН БЕЛОРУСИ), 20.09.2011. (86) Заявка PCT: 2 5 3 5 2 2 1 EP 2009/065289 (17.11.2009) R U 2 5 3 5 2 2 1 (56) Список документов, цитированных в отчете о поиске: DE 102006038108 A1 21.02.2008. EP (87) Публикация заявки PCT: WO 2010/063568 ...

FLEXIBLE TUBE

resumo tubo flexível um tubo flexível inclui uma composição de polímero de um poli cloreto de vinila tendo um peso molecular maior que cerca de 1,0 de viscosidade inerente (iv) e um plastificante biobaseado. além disso, um método para formar um tubo flexível é fornecido. o método inclui compor um poli cloreto de vinila tendo um peso molecular maior que cerca de 1,0 de viscosidade inerente (iv) com um plastificante biobaseado para formar uma composição de polímero e extrusar a composição de polímero no tubo flexível. 1/1 abstract flexible tube a flexible tube includes a polyvinyl chloride polymer composition having a molecular weight greater than about 1.0 inherent viscosity (iv) and a biobased plasticizer. in addition, a method for forming a flexible tube is provided. the method includes composing a polyvinyl chloride having a molecular weight greater than about 1.0 inherent viscosity (iv) with a biobased plasticizer to form a polymer composition and extrude the polymer composition in the flexible tube. 1/1

Fluororubber composition

The present invention provides a fluororubber composition excellent in not only heat resistance, but also tensile properties and tensile fatigue properties at high temperatures. The present invention relates to a fluororubber composition comprising a fluororubber having an iodine content of 10 to 90 mol% for the total mole of the polymer end groups and a carbon black (B), wherein a difference (δG'), represented by G'(1%) - G'(100%), is not lower than 120 kPa and not higher than 3,000 kPa, where G'(1%) denotes a shear modulus at a dynamic strain of 1% under an uncrosslinked state and G'(100%) denotes a shear modulus at a dynamic strain of 100% under an uncrosslinked state, and G'(1%) and G'(100%) are determined by a dynamic viscoelasticity test with a rubber process analyzer (RPA)in a condition that the measurement frequency is 1 Hz and the measurement temperature is 100°C.