STEM WITH SECONDARY CURVATURE IN EXTENSION

The present invention relates to a STEM with secondary curvature in extension and to methods of manufacture. In an aspect, an extendible member () is provided which is configurable between a coiled form () and an extended form (). The member comprises a longitudinal shell resiliently biased in a slit tube form in which it has a first curvature relative to the hoop of slit tube and has a secondary curvature relative to the longitudinal axis of the member. The slit tube can be opened out at the slit to assume an open form in which it has a flattened cross section in transitioning from the extended form to the coiled form. The strain energy when coiled is lower than the peak strain energy in the member when transitioning from the extended to the coiled form. 1. An extendible member which is configurable between a coiled form and an extended form , comprising a longitudinal shell resiliently biased in a slit tube form in which it has a first curvature relative to the hoop of the slit tube and has a secondary curvature relative to the longitudinal axis of the member , wherein the slit tube can be opened out at the slit to assume an open form in which it has a flattened cross section in transitioning from the extended form to the coiled form , wherein the strain energy when coiled is lower than the peak strain energy in the member when transitioning from the extended to the coiled form.2. An extendible member having a secondary curvature when extended , running substantially along the axis of extension or retraction.3. The extendible member according to claim 1 , wherein the secondary curvature is a conic section claim 1 , regular or irregular spline curve or spiral or helical curves or any other curve or combination of curves or combination of curved and straight sections4. The extendible member according to in which the direction of fibre reinforcement is modified around the hoop of the extended structure in such a manner as to reduce the peak strain in the structure ...

Heat shrinkable sleeve and manufacturing method thereof

Cloth of material capable of shrinkage while in hot state

Сущность изобретения: полотно материала, обладающее возможностью усадки в горячем состоянии, для изготовления покрытий, обладающих возможностью усадки в горячем состоянии, на кабельные соединения или ответвления, состоит, по меньшей мере, из полимерного покровного слоя, термостабильного сетчатого слоя и усадочного слоя, обладающего возможностью усадки в горячем состоянии. Усадочный слой состоит из сетчатого, вытянутого пластмассового полотна, разделенного в направлении усадки проходящими через пластмассовое полотно разделительными разрезами для образования усадочных полос заданной ширины. Такой усадочный слой обеспечивает вместе с термостабильным сеточным слоем высокую прочность на разрыв полотна материала в твердом и даже расплавленном состоянии. 16 з.п. ф-лы, 1 ил. 8993$0с% ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2 038 668. НО2 С 15/068, В 29 С 61/06 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5052444/07, 07.08.1992 (30) Приоритет: 09.08.1991 ОЕ Р 4126355.3 (46) Дата публикации: 27.06.1995 (56) Ссылки: Патент США М 3669157, 139-387, 1972.Европейский патент М 0243985 кл. В 29С 61/06, 1988. (71) Заявитель: Штевинг ГмбХ унд Ко., КГ Верк Берлин (0Е) (72) Изобретатель: Фридрих Бекер[РЕ], Норберт Николай[0ОЕ], Винфрид Штупп[ОЕ] (73) Патентообладатель: Штевинг ГмбХ унд Ко., КГ Верк Берлин (ОЕ) (54) ПОЛОТНО МАТЕРИАЛА, ОБЛАДАЮЩЕЕ ВОЗМОЖНОСТЬЮ УСАДКИ В ГОРЯЧЕМ СОСТОЯНИИ (57) Реферат: Сущность изобретения: полотно материала, обладающее ВОЗМОЖНОСТЬЮ усадки в горячем состоянии, для изготовления покрытий, обладающих возможностью усадки в горячем состоянии, на кабельные соединения или ответвления, состоит, по меньшей мере, из полимерного покровного слоя, термостабильного сетчатого слоя и усадочного слоя, обладающего возможностью усадки в горячем состоянии. Усадочный слой СОСТОИТ из сетчатого, вытянутого пластмассового полотна, разделенного в направлении усадки проходящими через пластмассовое полотно ...

Long-size moulded profile and method of manufacturing it, thermosettled tape and method for manufacturing it, method of manufacturing termoreducible polymer tape products, method of manufacturing thermoreducible tape

A drawn formed tow is described of a polymer for manufacturing thermoplastic articles, comprising a thermoplastic core strand (2) and a cover produced by winding, spinning, braiding or the like at least one strand (3) made of a material which is very strong at the softening point of the core strand (2). The cover strand (3) or strands (3) extend at an angle alpha of less than 90 DEG but greater than 0 DEG relative to the longitudinal axis of the core strand (2).

Elongata shaped strand

본 발명은 열회복성 물품(heat-recoverable article)을 제조하기 위한 중합체로 된 긴 성형 스트랜드(elongate shaped strand)에 관한 것이다. The present invention relates to elongate shaped strands of polymer for making heat-recoverable articles. 본 발명의 목적은 높은 인열 강도를 가지는, 열회복성 물품을 제조하기 위한 성형 스트랜드를 제공하는 데 있다. 상기 목적은, 성형 스트랜드가 성형 스트랜드의 열변형 온도에서 강한 재료로 된 최소한 하나의 띠 또는 섬유의 감김부, 꼬임부, 짜임부를 가지며, 상기 띠 또는 섬유(들)는 코어의 종축에 대해 0°보다 크고 90°보다 작은 각으로 형성됨으로써 달성된다. 감김부, 꼬임부, 짜임부 등으로 형성된 보강층은 늘이거나 잡아 당김으로 인해 발생되는 성형 스트랜드 횡단면의 변화에 적응할 수 있다는 유리한 특성을 가진다. An object of the present invention is to provide a molded strand for producing a heat recoverable article having a high tear strength. The object is that the forming strand has at least one band, fiber, or braid of fibers or fibers of strong material at the heat deflection temperature of the molding strand, the strip or fiber (s) being 0 ° relative to the longitudinal axis of the core. It is achieved by forming an angle that is larger and smaller than 90 °. The reinforcing layer formed by the windings, twists, weavings, etc. has the advantageous property of being able to adapt to changes in the cross section of the forming strands caused by stretching or pulling.

Elongate shaped strand

본 발명은 열회복성 물품(heat-recoverable article)을 제조하기 위한 중합체로 된 긴 성형 스트랜드(elongate shaped strand)에 관한 것이다. The present invention relates to elongate shaped strands of polymer for making heat-recoverable articles. 본 발명의 목적은 높은 인열 강도를 가지는, 열회복성 물품을 제조하기 위한 성형 스트랜드를 제공하는 데 있다. 상기 목적은, 성형 스트랜드가 성형 스트랜드의 열변형 온도에서 강한 재료로 된 최소한 하나의 띠 또는 섬유의 감김부, 꼬임부, 짜임부를 가지며, 상기 띠 또는 섬유(들)는 코어의 종축에 대해 0°보다 크고 90°보다 작은 각으로 형성됨으로써 달성된다. 감김부, 꼬임부, 짜임부 등으로 형성된 보강층은 늘이거나 잡아 당김으로 인해 발생되는 성형 스트랜드 횡단면의 변화에 적응할 수 있다는 유리한 특성을 가진다. An object of the present invention is to provide a molded strand for producing a heat recoverable article having a high tear strength. The object is that the forming strand has at least one band, fiber, or braid of fibers or fibers of strong material at the heat deflection temperature of the molding strand, the strip or fiber (s) being 0 ° relative to the longitudinal axis of the core. It is achieved by forming an angle that is larger and smaller than 90 °. The reinforcing layer formed by the windings, twists, weavings, etc. has the advantageous property of being able to adapt to changes in the cross section of the forming strands caused by stretching or pulling.

Elongate shaped strand

본 발명은 열회복성 물품(heat-recoverable article)을 제조하기 위한 중합체로 된 긴 성형 스트랜드(elongate shaped strand)에 관한 것이다. The present invention relates to elongate shaped strands of polymer for making heat-recoverable articles. 본 발명의 목적은 높은 인열 강도를 가지는, 열회복성 물품을 제조하기 위한 성형 스트랜드를 제공하는 데 있다. 상기 목적은, 성형 스트랜드가 성형 스트랜드의 열변형 온도에서 강한 재료로 된 최소한 하나의 띠 또는 섬유의 감김부, 꼬임부, 짜임부를 가지며, 상기 띠 또는 섬유(들)는 코어의 종축에 대해 0°보다 크고 90°보다 작은 각으로 형성됨으로써 달성된다. 감김부, 꼬임부, 짜임부 등으로 형성된 보강층은 늘이거나 잡아 당김으로 인해 발생되는 성형 스트랜드 횡단면의 변화에 적응할 수 있다는 유리한 특성을 가진다. An object of the present invention is to provide a molded strand for producing a heat recoverable article having a high tear strength. The object is that the forming strand has at least one band, fiber, or braid of fibers or fibers of strong material at the heat deflection temperature of the molding strand, the strip or fiber (s) being 0 ° relative to the longitudinal axis of the core. It is achieved by forming an angle that is larger and smaller than 90 °. The reinforcing layer formed by the windings, twists, weavings, etc. has the advantageous property of being able to adapt to changes in the cross section of the forming strands caused by stretching or pulling.

Heat Shrinkable Envelopes

본 발명은 하나 이상의 수축성 시이트-형 층(FS)의 열-수축성 커버링 및 보강 삽입체(VE, VEF)로 이루어지며, 상기 보강 삽입체(VE, VEF)는 플라스틱 그리드에 의해 형성되며, 상기 그리드는 시이트-형 층(FS) 의 수축 방향을 수축할 수 있다.

Thermoshrinkable shell

FIELD: manufacture of thermoshrinkable shells capable of withstanding of high mechanical loads. SUBSTANCE: the shell is made at least of one shrinkable flat layer and at least of one reinforcing spacer. The spacer is formed by a plastic lattice for shrinkage in the direction of shrinkage of the flat layer. The lattice is formed of crossing elements. The lattice elements passing in the direction of shrinkage of the flat layer are made for shrinkage. The lattice elements passing across the direction of shrinkage are incapable of shrinkage. The shell is provided with closing elements passing on the longitudinal edges. The direction of shrinkage of laminate passes across it. The reinforcing spacer is positioned in the shrinkable flat layer. The shell is capable of withstanding of high mechanical loads perceived by the structure of the reinforcing spacer. The shell doesn't crack when loaded and doesn't get damaged. EFFECT: enhanced resistance to high mechanical loads. 50 cl, 16 dwg собст с ПЧ сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ” 2 159 702‘ 13) С2 В 32 В 27/08 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 96122498/12, 26.11.1996 (24) Дата начала действия патента: 26.11.1996 (30) Приоритет: 29.11.1995 ОЕ 19544539.2 (46) Дата публикации: 21.11.2000 (56) Ссылки: ЕР 0299439 СЛ, 30.09.1992. СВ 1522397 А, 23.08.1978. 4$ 3620898 А, 16.11.1971. 5Ц 761513 А, 07.09.1980. (98) Адрес для переписки: 103735, Москва, ул. Ильинка 5/2, "Союзпатент", Силаевой А.А. (71) Заявитель: КХ$ КАБЕЛЫ АРНИТУРЕН ГМБХ (0Е) (72) Изобретатель: Ульрих АФФОЛЬДЕРБАХ (0Е), Андреас КУПЧИК (0Е), Ханс-Юрген МЕЛЬЧ (ОЕ), Зигрид РОЗЕ (0Е), Вольфганг ШУЛЬТЕ (ОЕ) (73) Патентообладатель: КХ$ КАБЕЛЫ АРНИТУРЕН ГМБХ (0Е) (54) ТЕРМОУСАЖИВАЕМАЯ ОБОЛОЧКА (57) Изобретение относится к изготовлению термоусаживаемых оболочек, способных выдерживать высокие механические нагрузки. Оболочка выполнена из, по меньшей мере, одного усаживаемого плоского слоя и, ...

REALIZATION OF A FLEXIBLE HEAT-SHRINKABLE PLASTIC REINFORCED WITH LONG FIBER PRE-IMPREGNATED ELEMENTS BECOMING A RIGID COMPOSITE DURING THE IMPLEMENTATION OF THE HEAT-SHRINKABLE

The reinforcement in the longitudinal direction of a thermoplastic thermoshrinkable product by bar band or threads by means of a known process leads to rigid thermoshrinkable products if the reinforcements are originally rigid such as metal reinforcements or the like. If said reinforcement are flexible of the filament type of fibre glass, aramide, carbon, the thermoshrinkable product will remain flexible. The aim of the present invention is to introduce a flexible reinforcement element in the thermoshrinkable product which becomes rigid only during the application, that is to say during the setting and therefore during shrinkage of the product. The handling remains easy before the setting since the flexibility is preserved, the reinforcement being flexible and the stiffness is obtained after implementation and gives a more efficient reinforcement. This phenomenon may be obtained by means of the process of the impregnated thermoplastic fibre (FIT) by means of a known process. As a fact, the preimpregnated fibre remains flexible due to the grain of powder contained therein, grains which are not melted but let the fibres forming the rovings (8) free to play between each other and said roving becomes rigid and forms a composite material (10) when applying temperature.

BRAIDED SHEATH SLEEVE FOR THREADING ON AT LEAST ONE ELONGATE MEMBER TO BE PROTECTED, AND METHOD FOR MANUFACTURING SUCH A SLEEVE

L'invention concerne un manchon de gaine tressée (10) présentant au moins une extrémité expansée (13) dont le diamètre est supérieur au diamètre nominal de la gaine; l'extrémité expansée (13) inclut une certaine quantité d'adhésif entre les filaments constitutifs, et elle est entourée, au moins jusqu'à son bord libre (12), par une bague (14) en matière plastique thermorétractable. La bague est partiellement rétractée de façon à pouvoir être ensuite thermorétractée une fois le manchon (10) mis en place pour serrer l'extrémité expansée et fixer en position ledit manchon. The invention relates to a braided sheath sleeve (10) having at least one expanded end (13) whose diameter is greater than the nominal diameter of the sheath; the expanded end (13) includes a certain amount of adhesive between the constituent filaments, and it is surrounded, at least to its free edge (12), by a ring (14) made of heat-shrinkable plastic. The ring is partially retracted so that it can then be heat-shrunk once the sleeve (10) is put in place to tighten the expanded end and fix said sleeve in position.

Fabric member

ABSTRACT A curable fabric member comprising first and second curing reactants in elongate, preferably ex-truded, form. The reactants may be coextruded or sequentially extruded to form a single filament, or may be provided as separate staple fibres incorporated in a spun yarn, or as separate continuous filaments ass-embled into a multi-filament yarn.

tubular elements with complex walls and method for their manufacture

Dimensionally recoverable article

ABSTRACT Dimensionally Recoverable Article A recoverable article comprising a composite structure is produced from a recoverable fabric and a polymeric matrix material. The structure is used for environmental protection of cables, pipes and other substrates.

Method and apparatus for producing a plastic pipe and a plastic pipe

The invention relates to a method and an appar-atus for producing a plastic pipe, and to a plastic pipe. Worn-out pipelines are often lined by plastic pipes which often have a memory prop-erty such that they expand on heating. According to the invention, this memory property is achieved by causing a cross-linking reaction to occur in plastic material (4) in pipe forming means (1), and then passing the plastic pipe, while still hot, into a contraction mould (5). When the pipe (16) is still in a plastic state, it can be corrugated, if desired, in a cor-rugator (8) positioned after the constriction mould (5).

Fabric member

PROCEDURE AND APPARATUS FOR THE MANUFACTURE OF A PLASTIC TUBE AND PLASTIC TUBE.

LA INVENCION SE REFIERE A UN METODO Y UN APARATO PARA OBTENER UN TUBO DE PLASTICO, Y A UN TUBO DE PLASTICO. TUBERIAS GASTADAS SE RECUBREN FRECUENTEMENTE MEDIANTE TUBOS DE PLASTICO, QUE CON FRECUENCIA TIENEN UNA FACULTAD DE RETENCION TAL QUE SE EXPANDEN AL CALENTARSE. DE CONFORMIDAD CON LA INVENCION, ESTA FACULTAD DE RETENCION SE OBTIENE HACIENDO QUE SE PRODUZCA UNA REACCION DE RETICULACION EN MATERIAL PLASTICO (4) EN MEDIO (1) DE FORMACION DE TUBOS, Y PASANDO A CONTINUACION EL TUBO DE PLASTICO, MIENTRAS TODAVIA PERMANECE CALIENTE, DENTRO DE UN MOLDE DE CONTRACCION (5). CUANDO EL TUBO (16) ESTA TODAVIA EN ESTADO PLASTICO, PUEDE ACANALARSE, SI SE DESEA, EN UN DISPOSITIVO PRODUCTOR DE CORRUGACIONES (8), POSICIONADO DESPUES DEL MOLDE DE CONTRACCION (5). EL TUBO (16) PUEDE ESTAR CIRCUNDADO POR UN TEJIDO (17) COMO DE MANGUERA.

Bearings

A bearing member comprising polymeric material dimensionally recovered into engagement with a supporting member to provide a bearing surface thereon.

Heat-shrinkable envelope

Shape memory composites

A shape memory composite can, in one example, include a shape memory material to bend along a fold region in response to a phase change in the shape memory material from a first phase to a second phase. A mechanochromic marking can be deposited on a surface of the shape memory material at the fold region. The mechanochromic marking can change color along the fold region in response to the bending of the shape memory material.

Method of making a fiber reinforced heat recoverable object

A heat recoverable, shrink-object is made from a mesh or web assembly having thermoplastic threads that extend in a first direction, and second threads that are essentially non-stretchable and run transversely to the first threads, that assembly is embedded in a polymer matrix which is then crosslinked; the thermoplastic threads do not crosslink; the matrix with embedded mesh or web is then heated to a temperature above the crystallite melting point of the polymer matrix and the thermoplastic threads are stretched into an elongated state at that temperature, and the stretching is maintained during subsequent cooling until a lower temperature including room temperature is reached and stretching is no longer needed to maintain said elongated state.

Heat-recoverable material web.

Recoverable composite structure

Webbing of heat-resettable material

Heat recoverable article

ABSTRACT Heat-Recoverable Article A heat recoverable article comprises a recoverable fabric and a polymeric layer of at least 0.03mm thickness, and preferably unstressed. Such an article can be recovered by means of an torch to provide an environmental seal around substrates such as cables and pipes.

Arrangement for enclosing substrates

Heat recoverable article

tubular elements with complex walls and method for their manufacture

Elongated extrudate of a crosslinked polymer

A description is given of an elongated extrudate of a crosslinked polymer for producing articles which can recover their shape under heat, which comprises a core strand (2) which can recover its shape under heat and has a wound, spun, braided or other type of surround composed of at least one strand (3) of a material of high strength at the softening temperature of the core strand (2). The strand (3) or the strands (3) run at an angle of less than 90@, but greater than 0@, with respect to the longitudinal axis of the core strand (2). <IMAGE>

Enclosing resettable item

Composite material

TEXTILE SHEATH AND BLOCKING THREAD FOR USE IN A TEXTILE SHEATH

L'invention concerne une gaine textile (10) tissée en deux couches rétractable radialement, cette gaine textile (10) comprenant une couche textile supérieure (8) et une couche textile inférieure (9). Lesdites couches textiles (8 ; 9) sont assemblées au niveau de leurs bords au moyen de fils de chaîne de liaison (5) et comprennent des fils de trame (1 ; 2) constitués d'une matière à haute rétractabilité et des fils de chaîne (11 ; 12) constitués d'une matière à faible rétractabilité. Selon l'invention, les fils de chaîne de liaison (5) se présentent sous la forme de fils de blocage à structure 'mince/épaisse'. The invention relates to a textile sheath (10) woven in two radially retractable layers, said textile sheath (10) comprising an upper textile layer (8) and a lower textile layer (9). Said textile layers (8; 9) are joined at their edges by means of connecting warp threads (5) and comprise weft threads (1; 2) of a high-shrink material and warp threads (11; 12) made of a low shrink material. According to the invention, the connecting warp threads (5) are in the form of blocking threads with a 'thin / thick' structure.

Cloth member

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

Heat recoverable article

A heat-recoverable article suitable for enclosing a telecommunications cable splice comprises a recoverable fabric cover and a strengthening layer laminated to a surface of the fabric cover.

DIMENSIONALLY THERMO-RECOVERABLE ARTICLE AND CLOSING PROCESS AT LEAST PART OF A SUBSTRATE

FREQUENCY METHOD FOR REINFORCING A TUBE WITH AXIAL HOLD AND INTERNAL PRESSURE TENSION

Le procédé de frettage permet de fabriquer un tube renforcé, dans lequel on effectue les opérations suivantes : - on dépose une couche de renfort 2 autour du tube métallique 1, puis - on impose une force de traction aux extrémités du tube métallique pour déformer plastiquement le tube métallique en appliquant une pression P2 dans l'enceinte Z2, la force étant déterminée pour introduire un effort de compression dans le tube métallique après relâchement de la force, et - on impose une pression P1 dans l'enceinte Z1 pour appliquer une pression sur la paroi interne du tube métallique afin de déformer plastiquement le tube métallique, la pression étant déterminée pour introduire un effort de compression dans le tube métallique après relâchement de la pression. Le fait que les deux enceintes Z1 et Z2 sont distinctes et indépendantes permet d'appliquer des pressions P1 et P2 indépendamment l'une de l'autre. Ainsi, le procédé permet d'appliquer des précontraintes radiales et axiales indépendantes de façon à optimiser la tenue du tube fretté. The hooping method makes it possible to manufacture a reinforced tube, in which the following operations are carried out: a reinforcement layer 2 is deposited around the metal tube 1, then a traction force is applied to the ends of the metal tube to plastically deform the metal tube by applying a pressure P2 in the chamber Z2, the force being determined to introduce a compressive force into the metal tube after release of the force, and - it imposes a pressure P1 in the chamber Z1 to apply pressure on the inner wall of the metal tube to plastically deform the metal tube, the pressure being determined to introduce a compressive force into the metal tube after releasing the pressure. The fact that the two enclosures Z1 and Z2 are separate and independent makes it possible to apply pressures P1 and P2 independently of one another. Thus, the method makes it possible to apply independent radial and axial prestressing ...

Stem with secondary curvature in extension

Heat shrinkable sleeve for connecting a pipe and cable

Dimensionally recoverable article

Dimensionally recoverable article

A recoverable article comprising a composite structure is produced from a recoverable fabric (3, 4) and a polymeric matrix material (5). The structure is used for environmental protection of cables, pipes and other substrates.

MANUFACTURING PROCEDURE OF A THERMO-RETRACTABLE OBJECT REINFORCED BY A TISSUE.

EN UN PROCEDIMIENTO PARA LA FABRICACION DE UN OBJETO TERMORECUPERABLE POR MEDIO DE LA INCRUSTACION DE UN TEJIDO (1), TRENZADO O SIMILAR, DE HILOS QUE DISCURREN EN UNA DIRECCION DE MATERIAL POLIMERO, Y DE HILOS QUE DISCURREN TRANSVERSALMENTE A ESTOS, DE UN MATERIAL GENERALMENTE NO DEFORMABLE, EN UNA MATRIZ (2) DE MATERIAL POLIMERO, SE INCRUSTA UN TEJIDO, TRENZADO O SIMILAR DE HILOS (3) EN LA DIRECCION DE EXTENSION O CONTRACCION PREVISTA, DE MATERIAL SINTETICO TERMOPLASTICO, Y TRANSVERSALMENTE A ESTOS DISCURREN LOS HILOS (4) DE UN MATERIAL ESENCIALMENTE NO DEFORMABLE, EN UNA MATRIZ POLIMERA (2). PARA ELLO SE RETICULA LA MATRIZ POLIMERA (2) Y FINALMENTE SE CALIENTA EL OBJETO A UNA TEMPERATURA SUPERIOR AL PUNTO DE FUSION DE CRISTALIZACION DE LA MATRIZ POLIMERA, A ESTA TEMPERATURA SE DILATA EN LA DIRECCION DE LOS HILOS (3) DE MATERIAL TERMOPLASTICO, Y EN EL ESTADO DE DILATACION, SE ENFRIA. IN A PROCEDURE FOR THE MANUFACTURE OF A HEAT RECOVERABLE THROUGH THE INCRUSTATION OF A TISSUE (1), BRAIDED OR SIMILAR, OF THREADS THAT RUN IN A DIRECTION OF POLYMER MATERIAL, AND OF THREADS THAT DISCURRENTLY TRANSVERSE TO THESE, FROM NON-DEFORMABLE, IN A MATRIX (2) OF POLYMER MATERIAL, A FABRIC, BRAIDED OR SIMILAR OF THREADS (3) IS INCORPORATED IN THE DIRECTION OF EXTENSION OR CONTRACTION INTENDED, OF SYNTHETIC THERMOPLASTIC MATERIAL, AND TRANSVERSE TO THESE 4 THREADS ( OF AN ESSENTIALLY NON-DEFORMABLE MATERIAL, IN A POLYMER MATRIX (2). FOR THIS, THE POLYMER MATRIX (2) IS CROSSED AND FINALLY HEATS THE OBJECT TO A TEMPERATURE HIGHER THAN THE CRYSTALLIZATION MELTING POINT OF THE POLYMER MATRIX, AT THIS TEMPERATURE IT DILATES IN THE DIRECTION OF THREADS (3) OF THERMOPLASTIC MATERIAL, IN THE STATE OF EXPANSION, IT COOLS.

Heat-shrinkable sleeve

ABSTRACT A Heat-Shrinkable Sleeve The invention relates to a heat-shrinkable sleeve (U) consisting of at least one heat-shrinkable component (SK) and a mechanical reinforcing component (VK). The mechanical reinforcing component (VK) preferably consists of a carrier foil (TF) on which mechanical reinforcing elements (VE) are arranged. The stretched shrinkable component (SK) is permanently bonded to the mechanical reinforcing component, where the arrangement of the reinforcing elements (VE) is selected to be such that the shrinkage of the shrinking component (SK) as far as possible takes place in full. Figure 1.

Heat recoverable reinforced article and process

Cable sleeve capable of contraction

A shrinkable cable sleeve which is composed of a shrinkable envelope having a meltable inside layer and an inner cable insert. The inner cable insert is composed of a plurality of layers, wherein one layer is activatable by the application of heat, and the plurality of layers includes a basic foil layer and reinforcing elements which may be in a separate layer or embedded in the activatable layer. During assembly, a pressure tight cable sleeve will be produced by fusing the two activatable layers together.

Making effective reinforcements for FRP - by weaving or knitting main fibres with ancillary fibres to form loops so that these are extended when finished prod. is loaded

Fibres/fibre composites are produced for reinforcing plastics by forming woven or knitted fibres/composite plastically or elastically with ancillary fibres so that they are corrugated or made into open loops which are readily embedded in the plastic material. Aramid fibres are knitted together with the subsidiary fibres so that after shrinking the loops of the reinforcing fibres are held together like links in a chain. The material can be stretched until the loops recover their original form. Using a suitable temp. the three-dimensional form of the material can be fixed. The extensibility of the fibres greatly affects the loads which can be used. ADVANTAGE - The failing loads (where the component materials separate) are determined by failure of the stretched fibres. If the material does fail it delaminates rather than breaking up completely hence giving increased energy absorption. Displays a three-dimensionally residual plastic deformation of the fibre composite rather than suffering change or loss of the composite structur

Method of making and using shape memory polymer composite patches

A method of repairing a composite component having a damaged area including: laying a composite patch over the damaged area; activating the shape memory polymer resin to easily and quickly mold said patch to said damaged area; deactivating said shape memory polymer so that said composite patch retains the molded shape; and bonding said composite patch to said damaged part.

Fabric member

A curable fabric member comprising first and second curing reactants in elongate, preferably extruded, form. The reactants may be coextruded orsequentially extruded to form aa single filament, or may be provided as separate staple fibres incorporated in a spun yarn, or as separate continuous filaments assembled into a multi-filament yarn.

METHOD FOR PRODUCING A CLOSURE ELEMENT FOR A RESETTABLE OBJECT.

Heat shrinkable envelope

The invention relates to a heat-shrinkable envelope (U) of at least one heat-shrinkable component (SK) and of a mechanically reinforcing component (VK). The mechanically reinforcing component (VK) preferably comprises a base film (TF), on which mechanical reinforcing elements (VE) have been applied. The widened shrinkable component (SK) is in a solid bond with the mechanical reinforcing component, the arrangement of the reinforcing elements (VE) being chosen in such a way that the shrinkage of the shrinking component (SK) takes effect to the greatest extent possible. <IMAGE>

Heat shrinkable covering

A heat shrinkable covering in the form of a sheet which is heat shrinkable in a longitudinal direction, and a stiffening member connected at each of two longitudinally spaced transversely extending superimposable zones of the sheet. One stiffening member has holes and the other studs in the form of arm portions which are insertable through the holes to secure the stiffening members together. The arm portions can be flattened down onto the outside of the covering to retain the stiffening members together while reducing risk of the studs interfering with items such as cables adjacent the covered article. Preferably the studs have a resiliently compressible head portion which snap fits into holes formed through the sheet adjacent the holes in the stiffening member to facilitate locating the overlapped zones of the sheet relative to one another. In use, the sheet is wrapped around an article, the stiffening members are engaged together, and the sheet is then heat shrunk. The stiffening members support the juxtaposed edges of the sheet at points intermediate the coupling points, thus resisting the tendency for the edges of the sheet to separate as a result of the hoop stresses generated in the sheet on shrinking.

Wrap-around recoverable article

Foam film for shrink labels

A METHOD OF ENCLOSING AT LEAST PART OF A SUBSTRATE, SUCH AS A TUBE OR TELECOMMUNICATION CABLE.

A heat recoverable article comprises a recoverable fabric and a polymeric layer of at least 0.03mm thickness, and preferably unstressed. Such an article can be recovered by means of an torch to provide an environmental seal around substrates such as cables and pipes.

Method and apparatus for producing a plastic pipe and a plastic pipe

本发明涉及一种生产一种塑料管的方法和设备以及一种塑料管。磨损的管路常衬以通常具有记忆性能的塑料管，以使塑料管在受热时膨胀。按照本发明，此记忆性能是通过使在管子成型装置(1)中的塑性材料(4)产生交联反应，然后将仍旧是热的的塑料管送入收缩模(5)而达到的。当管子(16)仍然处于塑性状态时，如果需要的话，可以将其在位于收缩模(5)后面的波纹制造器(8)中做出波纹。

Method of Making and Using Shape Memory Polymer Composite Patches

A method of repairing a composite component having a damaged area including: laying a composite patch over the damaged area; activating the shape memory polymer resin to easily and quickly mold said patch to said damaged area; deactivating said shape memory polymer so that said composite patch retains the molded shape; and bonding said composite patch to said damaged part.

Heat recoverable article

Hoop winding method for reinforcing the axial strength and the internal pressure strength of a tube

The hoop winding method allows to manufacture a reinforced tube by carrying out the following operations: depositing a reinforcing layer 2 around metal tube 1 , then imposing a tensile force at the metal tube ends so as to plastically deform the metal tube by applying a pressure P 2 in enclosure Z 2 , the force being determined to introduce a compressive stress in the metal tube after release of the force, and imposing a pressure P 1 in enclosure Z 1 in order to apply a pressure onto the inner wall of the metal tube so as to plastically deform the metal tube, the pressure being determined to introduce a compressive stress in the metal tube after release of the pressure. The fact that the two enclosures Z 1 and Z 2 are distinct and independent allows pressures P 1 and P 2 to be applied independently of one another. Thus, the method allows independent radial and axial prestresses to be applied so as to optimize the strength of the hoop-wound tube.

Patent FR2258255B1

CONTINUOUS CASTING MOLDING EXTENDED LONGITUDINALLY.

PRESENTAMOS UNA CUERDA DE MOLDEO DE GRAN LONGITUD, HECHA DE UN POLIMERO, PARA LA PRODUCCION DE REGULADORES DE CALOR AJUSTABLES. LA CUERDA CONSTA DE UN NUCLEO (2) CON UN RECUBRIMIENTO, UN REVESTIMIENTO, UN TRENZADO O. A. DE AL MENOS UNA CUERDA (3) HECHA DE UN MATERIAL ALTAMENTE RESISTENTE EN LA TEMPERATURA DE REBLANDECIMIENTO DEL NUCLEO (2). LA CUERDA (3) O CUERDAS (3) PASAN POR EL EJE LONGITUDINAL DEL NUCLEO (2) A UN ANGULO ALFA MENOR DE 90 GRADOS, PERO MAYOR DE CERO GRADOS. WE INTRODUCE A LARGE MOLDING ROPE, MADE OF A POLYMER, FOR THE PRODUCTION OF ADJUSTABLE HEAT REGULATORS. THE ROPE CONSISTS OF A NUCLEUS (2) WITH A COATING, A COATING, A BRAID OR O. A. AT LEAST A ROPE (3) MADE OF A HIGHLY RESISTANT MATERIAL IN THE NUCLEUS SOFTENING TEMPERATURE (2). THE ROPE (3) OR ROPES (3) PASS THROUGH THE LONGITUDINAL AXIS OF THE NUCLEUS (2) AT AN ALPHA ANGLE OF LESS THAN 90 DEGREES, BUT GREATER THAN ZERO DEGREES.

Heat-recoverable fabric article

ABSTRACT OF THE DISCLOSURE A composite material comprising a recoverable fabric and a polymeric matrix material may be recovered around a cable splice to protect it. The fabric may have multifilament glass fibres in one direction which may be provided with a continuous coating to prevent moisture that may travel along their length from travelling through the thickness of the composite.

FIBER MATERIALS, ARTICLES MADE FROM THESE AND PROCEDURES FOR MANUFACTURING THE ARTICLES.

Method of making and using shape memory polymer composite patches

A method of repairing a composite component having a damaged area including: laying a composite patch over the damaged area; activating the shape memory polymer resin to easily and quickly mold said patch to said damaged area; deactivating said shape memory polymer so that said composite patch retains the molded shape; and bonding said composite patch to said damaged part.

Process for the production of shrink articles

Heat recoverable article

ABSTRACT Heat Recoverable Article A heat-recoverable article suitable for enclosing a telecommunications cable splice comprises a recoverable fabric cover and a strengthening layer laminated to a sur-face of the fabric cover.

Multi-shape product

Multi-shape products of the present disclosure comprise two components: a matrix component and a fiber component that is embedded or otherwise disposed in the matrix component. The matrix component exhibits certain shape memory properties. The fiber component interpenetrates the matrix component to facilitate fixing of the multi-shape product in various temporary shapes.

Dimensionally recoverable article

A recoverable article comprising a composite structure is produced from a recoverable fabric and a polymeric matrix material. The structure is used for environmental protection of cables, pipes and other substrates. The recoverable fabric comprises a cross-linked recoverable polyolefin having a recovery stress of 1.5 to 5 mu Pa, and the matrix is cross-linked such that the recovery ratio available in the composite is at least 65% of that available in the free fabric, and the polymeric matrix material, per se, after irradiation has room temperature elongation of 400-700% measured at a strain rate of 300% per minute.

BRAIDED SHEATH SLEEVE FOR THREADING ON AT LEAST ONE ELONGATE MEMBER TO BE PROTECTED, AND METHOD FOR MANUFACTURING SUCH A SLEEVE

Dimensionally recoverable article.

A METHOD OF MAKING A RECOVERABLE COMPOSITE STRUCTURE COMPRISING A PLOYMERIC MATERIAL AND RECOVERABLE FIBRES BY VIRTUE OF WHICH THE STRUCTURE IS RECOVERABLE, WHICH METHOD COMPRISES: (A) APPLYING TO CROSS- LINKED RECOVERABLE FIBRES THE POLYMERIC MATERIAL AND THEN (B) CROSS LINKING THE POLYMERIC MATERIAL.(FIG. 1)

Stem with secondary curvature in extension

The present invention relates to a STEM with secondary curvature in extension and to methods of manufacture. In an aspect, an extendible member (10) is provided which is configurable between a coiled form (11) and an extended form (12). The member comprises a longitudinal shell resiliently biased in a slit tube form in which it has a first curvature relative to the hoop of slit tube and has a secondary curvature relative to the longitudinal axis of the member. The slit tube can be opened out at the slit to assume an open form in which it has a flattened cross section in transitioning from the extended form to the coiled form. The strain energy when coiled is lower than the peak strain energy in the member when transitioning from the extended to the coiled form.

SHAPE PIECE CAPABLE OF LOW-LENGTH SHREDDING SUCH AS SOFT PIPE CAP CUFF AND ANALOGUE

A.PIECE DE FORME CAPABLE DE RETRECISSEMENT DE FAIBLE LONGUEUR TELLE QUE CAPUCHON, TUYAU SOUPLE, MANCHETTE ET ANALOGUES, B.PIECE CARACTERISEE EN CE QUE, DANS LA PAROI 2 SONT DISPOSES, S'ETENDANT EN DIRECTION LONGITUDINALE ET REPARTIS SUR LE POURTOUR, DES ELEMENTS 3 POSSEDANT UNE RESISTANCE A LA TRACTION PLUS ELEVEE ET UN ALLONGEMENT PLUS REDUIT. C.L'INVENTION CONCERNE LA FABRICATION DE PIECES DE FORME, RETRECISSABLES, EN MATIERE EXTRUDEE ET RETICULEE. A. PART OF SHAPING CAPABLE SHAPE OF LOW LENGTH SUCH AS A CAP, FLEXIBLE HOSE, SLEEVE AND THE LIKE, B. PART CHARACTERIZED IN THAT IN WALL 2 ARE ARRANGED, EXTENDING LONGITUDINALLY AND DISTRIBUTED ON THE PERIOD, ELEMENTS 3 HAVING HIGHER TENSILE STRENGTH AND LOWER ELONGATION. C. THE INVENTION CONCERNS THE MANUFACTURE OF SHAPED, SHRINKABLE PARTS IN EXTRUDED AND CROSS-LINKED MATERIAL.

Plastic pipe manufacturing method and apparatus and plastic pipe

본 발명은 플라스틱 제조 방법과 장치와, 플라스틱 파이프에 관한 것이나, 낡은 플라스틱 파이프관은 종종 가열시 팽창하는 기억 성질을 가지는 플라스틱 파이프로 라이닝된다. 본 발명에 따라서, 기억 성질은 파이프 형성 수단(1)내의 플라스틱 재료(4)내에서 가교 결합 반응을 일으키고, 그리고 나서 여전히 고온인 상태로 수축 성형틀(5)을 통과시키므로서 성취된다. 파이프(16)가 여전히 플라스틱 상태일대, 필요시 수축 성형틀(5)뒤에 위치 설정된 주름기(8)에 의해 주름 형상을 만들 수 있다.

Heat-recoverable article for covering a substrate

A heat-recoverable sleeve 15 for covering a substrate comprises a band 5 of a crosslinked polymer. One surface of the band 5 has a coating 9 of a thermoplastic polymer, produced by coextrusion, laminated onto which is a layer 10, likewise of a thermoplastic polymer. A woven fabric 17 between the layers 9 and 10 or in the layer 10 serves to increase the tear strength. <IMAGE>

Heat shrinkable covering

A heat shrinkable covering in the form of a sheet which is heat shrinkable in a longitudinal direction, and a stiffening member connected at each of two longitudinally spaced transversely extending superimposable zones of the sheet. One stiffening member has holes and the other studs in the form of arm portions which are insertable through the holes to secure the stiffening members together. The arm portions can be flattened down onto the outside of the covering to retain the stiffening members together while reducing risk of the studs interfering with items such as cables adjacent the covered article. Preferably the studs have a resiliently compressible head portion which snap fits into holes formed through the sheet adjacent the holes in the stiffening member to facilitate locating the overlapped zones of the sheet relative to one another. In use, the sheet is wrapped around an article, the stiffening members are engaged together, and the sheet is then heat shrunk. The stiffening members support the juxtaposed edges of the sheet at points intermediate the coupling points, thus resisting the tendency for the edges of the sheet to separate as a result of the hoop stresses generated in the sheet on shrinking.

High speed manufacturing using shape memory polymer composites

Structurally strong composites are formed with shape memory polymer resins to create composites with shape memory properties. A system and method for using these composite structures to quickly manufacture composite products involves: 1) creating a preform composed of a shape memory polymer composite (2); 2) heating or otherwise activating the shape memory polymer; 3) using a mold (4) to deform the composite material to a desired shape; and 4) cooling or otherwise deactivating the shape memory polymer so that the composite structure retains the desired mold shape.

Method of making a recoverable composite structure

A recoverable article comprising a composite structure is produced from a recoverable fabric and a polymeric matrix material. The structure is used for environmental protection of cables, pipes and other substrates. The recoverable fabric comprises a cross-linked recoverable polyolefin having a recovery stress of 1.5 to 5 mu Pa, and the matrix is cross-linked such that the recovery ratio available in the composite is at least 65% of that available in the free fabric, and the polymeric matrix material, per se, after irradiation has room temperature elongation of 400-700% measured at a strain rate of 300% per minute.

Method of making and using shape memory polymer composite patches

A method of repairing a composite component having a damaged area including: laying a composite patch over the damaged area; activating the shape memory polymer resin to easily and quickly mold said patch to said damaged area; deactivating said shape memory polymer so that said composite patch retains the molded shape; and bonding said composite patch to said damaged part.

Recoverable fabric sleeve

A heat recoverable sleeve has a high recovery ratio of at least 60%. It uses a specific arrangement of recoverable fibers in one direction woven in a twill configuration with both heat stable fibers and heat recoverable fibers extending in another direction.

Hose from fabric capable for regeneration

Изобретение касается рукава из восстанавливаемой при нагревании ткани, предназначенного для размещения с внешней стороны удлиненного предмета, например трубы или кабеля, при изменяющемся по длине поперечном сечении. Рукав содержит плетеную ткань и нанесенный тонким слоем как минимум с одной стороны ткани полимерный материал, при этом плетеная ткань выполнена в виде 10 - 20 восстанавливаемых при нагревании волокон на 1 см, проходящих в одном направлении и сплетенных в конфигурацию саржи с 1 - 10 стабильными к нагреванию волокнами на 1 см и с 1 - 4 восстанавливаемыми при нагревании волокнами на 1 см, проходящими в другом направлении с обеспечением коэффициента восстановления 60 %. Задачей настоящего изобретения являлось создание структуры ткани, восстанавливаемой при нагревании, которая обеспечивала бы более высокий коэффициент восстановления и улучшенные свойства

METHOD AND APPARATUS FOR FORMING A TIGHT JOINT BETWEEN A HEAT SHRINK SLEEVE AND AT LEAST TWO ELONGED SUBSTRATES.

1. Method of forming a tight joint between a heat-shrunk splice box and at least two elongate substrates (1, 2), the splice box being in contact as far as possible with the outer surface of the substrates (1, 2) in the entry region of the substrates (1, 2) into the splice box, wherein the substrates (1, 2) are arranged in a heat-shrinkable sheathing (3) and two regions of the wall of the sheathing (3) are mutually opposite between the substrates (1, 2), and wherein the sheathing (3) is heated and wherein the entry region of the splice box is deformed between the substrates (1, 2) by bringing the wall regions close together to form channels (8, 9) for the substrates (1, 2), characterized by the combination of the following features : a. the material used for the sheathing (3) is a plastic tape with at least one inverted fabric layer (7) located within the wall of the sheathing (3), and b. the deformation of the splice box in the entry region is effected by at least one insertion element (10, 11) which is taken from one side through both walls and which is fixed in a self-locking manner on the other side of the second wall or in a hollow part or by means of a hollow part.

WRAPPING RECOVERABLE ITEM.

Fabric member

Heat recoverable article

Differentially crosslinked article

1,211,988. Laminates. RAYCHEM CORP. 15 May, 1969 [22 May, 1968], No. 24780/69. Heading B5N. [Also in Divisions C3 and F2] Laminated articles comprise a first layer of crosslinked infusible polymeric material, a second layer of fusible uncrosslinked polymeric material and a barrier layer impermeable to crosslinking means therebetween. Specified polymeric materials are polyethylene, ethylene/ vinyl acetate copolymers, ethylene/ethyl aerylate copolymers, polyvinyl chloride, polyvinylidene fluoride, polyamides, polyesters, polycarbonates, melamine resins, diallyl phthalate resins, epoxy resins, chlorinated polyethers and polyphenylene oxides. The barrier layer may be of plastics material or of metal, e.g. steel, copper, bronze or aluminium. The articles may be given heat-recoverable form by cooling in a deformed state after crosslinking of the first layer.

Curable fabric

Dimensionally recoverable article

A recoverable article comprising a composite structure is produced from a recoverable fabric and a polymeric matrix material. The structure is used for environmental protection of cables, pipes and other substrates. The recoverable fabric comprises a cross-linked recoverable polyolefin having a recovery stress of 1.5 to 5 mu Pa, and the matrix is cross-linked such that the recovery ratio available in the composite is at least 65% of that available in the free fabric, and the polymeric matrix material, per se, after irradiation has room temperature elongation of 400-700% measured at a strain rate of 300% per minute.

Heat-recoverable article

A heat recoverable article comprises a recoverable fabric and a polymeric layer of at least 0.03mm thickness, and preferably unstressed. Such an article can be recovered by means of an torch to provide an environmental seal around substrates such as cables and pipes.

Dimensionally heat-recoverable article

A recoverable article comprising a recoverable fabric having a recovery of at least 40% may be used for providing environmental protection.

PROCEDURE AND DEVICE TO FORM A HERMETIC JOINT BETWEEN A HEAT REDUCED SLEEVE AND AT LEAST TWO SUBSTRATES EXTENDED ALONG

1. Method of forming a tight joint between a heat-shrunk splice box and at least two elongate substrates (1, 2), the splice box being in contact as far as possible with the outer surface of the substrates (1, 2) in the entry region of the substrates (1, 2) into the splice box, wherein the substrates (1, 2) are arranged in a heat-shrinkable sheathing (3) and two regions of the wall of the sheathing (3) are mutually opposite between the substrates (1, 2), and wherein the sheathing (3) is heated and wherein the entry region of the splice box is deformed between the substrates (1, 2) by bringing the wall regions close together to form channels (8, 9) for the substrates (1, 2), characterized by the combination of the following features : a. the material used for the sheathing (3) is a plastic tape with at least one inverted fabric layer (7) located within the wall of the sheathing (3), and b. the deformation of the splice box in the entry region is effected by at least one insertion element (10, 11) which is taken from one side through both walls and which is fixed in a self-locking manner on the other side of the second wall or in a hollow part or by means of a hollow part.

Dimensionally heat recoverable article

A recoverable article comprising a recoverable fabric having a recovery of at least 40% may be used for providing environmental protection.

Recoverable article for encapsulation

A recoverable article comprises a recoverable fabric, means for rendering the fabric impervious, and a shaped liner. The assembly can be used to form a pressure resistant splice case for telecommunications cables.

Process for the production of tubular elements with corrugated walls

Tape made of material shrinkable by heating it

Method of environmentally sealing a substrate

An arrangement comprising a recoverable fabric and a sheet of polymeric material is used to provide environmental protection of cables and the like.

Verfahren zur herstellung eines gewebeverstärkten wärmerückstellbaren gegenstandes

Wärmeschrumpfbare umhüllung mit einer eigenverstärkten komponente.

Wärmeschrumpfbare umhüllung

Flexible recoverable tubular article

Hochgeschwindigkeitsfertigung unter verwendung von formgedächtnis-polymerverbundwerkstoffen

Verfahren zur verwendung von verbundfüllstücken aus formgedächtnispolymeren

Wärmeschrumpfbare Umhüllung mit einer eigenverstärkten Komponente.