WO2009092502A1 - Verstärkter schlauch - Google Patents

Verstärkter schlauch Download PDF

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Publication number
WO2009092502A1
WO2009092502A1 PCT/EP2008/067835 EP2008067835W WO2009092502A1 WO 2009092502 A1 WO2009092502 A1 WO 2009092502A1 EP 2008067835 W EP2008067835 W EP 2008067835W WO 2009092502 A1 WO2009092502 A1 WO 2009092502A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibers
textile reinforcement
hose
hot air
air shrinkage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2008/067835
Other languages
German (de)
English (en)
French (fr)
Inventor
Andreas Flachenecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Polyamide High Performance GmbH
Original Assignee
Polyamide High Performance GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Polyamide High Performance GmbH filed Critical Polyamide High Performance GmbH
Priority to RU2010134897/05A priority Critical patent/RU2480338C2/ru
Priority to KR1020107018493A priority patent/KR101498915B1/ko
Priority to AT08871433T priority patent/ATE508863T1/de
Priority to US12/812,616 priority patent/US20110114214A1/en
Priority to EP08871433A priority patent/EP2234801B1/de
Priority to JP2010543405A priority patent/JP5425098B2/ja
Priority to CN2008801254281A priority patent/CN101925454B/zh
Publication of WO2009092502A1 publication Critical patent/WO2009092502A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/02—Layered products comprising a layer of natural or synthetic rubber with fibres or particles being present as additives in the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/12—Layered products comprising a layer of natural or synthetic rubber comprising natural rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
    • B29K2277/10—Aromatic polyamides [Polyaramides] or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2313/00—Use of textile products or fabrics as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/04—Arrangements of liquid pipes or hoses

Definitions

  • the invention relates to hoses made of an elastomeric material with a textile reinforcement and is particularly concerned with a textile reinforcement based on polyamide fibers.
  • hoses are particularly suitable for use in cooling systems.
  • cooling systems have reinforced hoses made of flexible materials through which fluids circulate both to and from the radiator.
  • Document DE 2 063 641 discloses a reinforced hose which is preferably reinforced by a single layer of treated polyester or nylon fabric.
  • polyester fiber or aramid fiber hose reinforcements have little resistance to hydrolysis at elevated coolant operating temperatures.
  • Hoses with a textile reinforcement based on aliphatic polyamide fibers offer better resistance to hydrolysis than aramid or polyester.
  • these hoses with a textile reinforcement based on fibers of aliphatic polyamide have a restless or uneven surface.
  • the group of aliphatic polyamides includes, for example, those polymers which are known to the person skilled in the art under the name nylon, including in particular polyamide 6, polyamide 6.6 or else polyamide 4.6.
  • the object of the present invention is therefore to provide a hose with a textile reinforcement, in which the disadvantages of the prior art are at least reduced.
  • the hose should have a good hydrolysis resistance and at the same time a smoother, more uniform surface.
  • a hose comprising an elastomeric material and a textile reinforcement, wherein the textile reinforcement consists essentially of fibers selected from the group of aliphatic polyamides, characterized in that the hot air shrinkage of the fibers used, determined according to DIN 53866 at 180 0 C, 2 min and a bias of 5 mN / tex, less than 2.5%.
  • fiber comprises linear formations of one or more filaments, wherein the filaments may be present as continuous filaments or as staple fibers.
  • Line-shaped structures of several continuous filaments are also referred to as multifilament yarns and line-shaped structures of an endless filament as monofilament yarns.
  • Textile reinforcements which essentially consist of fibers selected from the group of aliphatic polyamides, are to be understood as meaning textile reinforcements which at least predominantly consist of fibers selected from the group of aliphatic polyamides.
  • the textile reinforcement preferably consists of at least 60% by weight of fibers selected from the group of aliphatic polyamides.
  • textile reinforcements which consist of at least 70% by weight, at least 80% by weight and particularly preferably at least 90% by weight of fibers selected from the group of aliphatic polyamides.
  • the textile reinforcement may also consist of 100% by weight of fibers selected from the group of aliphatic polyamides.
  • the group of elastomeric materials includes synthetic and natural polymers, which are characterized by the fact that they can stretch and bend even with little force and reset without force, so take their original form.
  • a suitable elastomeric material for a reinforced hose according to the present invention is rubber.
  • the material rubber in the context of the invention is natural or synthetic rubber, which is vulcanized to understand.
  • Synthetic rubber usually consists of styrene and butadiene; other raw material bases are styrene acrylate, pure acrylate, vinyl acetate.
  • Suitable elastomeric materials are styrene-butadiene rubber, neoprene, EPDM (ethylene-propylene-diene rubber), ethylene-propylene terpolymer rubber, nitrile-butadiene rubber or hydrogenated nithl-butadiene rubber.
  • the fibers of the textile reinforcement which consist essentially of aliphatic polyamides, preferably a hot air shrinkage, determined according to DIN 53866 at 180 0 C, 2 min and a bias of 5 mN / tex, the smaller than 2.3%.
  • the fibers selected from the group of aliphatic polyamides have a hot air shrinkage, determined according to DIN 53866 at 180 ° C., 2 min and a prestress of 5 mN / tex, which is less than 2.1%.
  • the aliphatic polyamides of which the textile reinforcement fibers essentially consist are preferably polyamide 6, polyamide 6,6, polyamide 4,6 or mixtures of these polymers.
  • the fibers of the textile reinforcement are preferably present as multifilament yarn.
  • the titer range of the multifilament yarns is preferably between 350 dtex and 2500 dtex, more preferably between 700 dtex and 2100 dtex.
  • the filament count of the multifilament yarn is preferably between 70 and 280 filaments.
  • the preparation of the yarns for the textile reinforcement takes place, for example, by spinning the heated and molten polymer material.
  • the web can then be wetted with Avivage and suitably stretched, so that in the meantime Garnfestmaschineen of 660 mN / tex to 970 mN / tex and elongations at break of 16% to 28% can be achieved.
  • Garnfestmaschineen 660 mN / tex to 970 mN / tex and elongations at break of 16% to 28% can be achieved.
  • the thus drawn yarns are then relaxed by the subsequent influence of heat and possibly moisture.
  • the humidity range is 60-100% in hot steam.
  • the yarns may also be completely wetted by hot water.
  • the yarn is preferably flows around starting with 70 0 C hot water in a reactor. The water is then heated steadily to a final temperature of 80 0 C to 140 ° C (heating rate 1 ° C / min) and held there for 10 to 40 min. Subsequently, the yarn is cooled by rinsing with room temperature cold water and dried.
  • the yarn is passed through vessels that are filled with steam at ambient pressure.
  • the steam temperature is preferably between 240 and 285 ° C.
  • the hot steam triggers the shrinkage. After steaming, the yarn is then rewound in ambient air. This preferred treatment is achieved that the hot-air shrinkage, determined according to DIN 53866 at 180 0 C, 2 min and a bias voltage of 5 mN / tex between 1, 3% and 2.5%, preferably between 1, 3% and 2, 3%.
  • the web after spinning can also be directly subjected to steaming and simultaneous stretching. After subsequent relaxation of the required hot air shrinkage, determined according to DIN 53866 at 180 0 C, 2 min and a bias of 5 mN / tex between 1, 3% and 2.5%.
  • the fibers of the textile reinforcement may also be in the form of cords.
  • the textile reinforcement is present in a single layer embedded in the elastomeric material.
  • the textile reinforcement in this case is between an inner layer of an elastomeric material and an outer layer of an elastomeric material, i.
  • the hose according to the invention comprises in this preferred embodiment, an inner tube made of an elastomeric material, on this inner tube is the textile reinforcement and on the textile reinforcement an outer tube, which preferably consists of the same elastomeric material as the inner tube.
  • Elastomeric material is preferably also present between the fibers of the textile reinforcement.
  • the fibers of the textile reinforcement can be treated with an adhesion promoter, for example with an organic polyisocyanate solution.
  • the fibers of the textile reinforcement may also have a hot air shrinkage greater than 2.5% before the treatment, provided that the fibers after the treatment with the adhesion promoter the hot air shrinkage required according to the invention less than 2.5%.
  • the fibers of the textile reinforcement preferably already have the hot air shrinkage of less than 2.5% required according to the invention before the treatment with adhesion improvers.
  • the hose according to the invention is particularly preferably characterized in that the fibers of the textile reinforcement are untreated, ie free from adhesion improvers.
  • the textile reinforcement may be in the form of braids or in the form of fibers spirally wound around the inner tube.
  • the textile reinforcement is preferably in the form of woven fabrics, in particular circular woven fabrics, knitted fabrics, in particular round knitted fabrics or in the form of knitted fabrics, in particular circular knits.
  • the textile reinforcement ensures a high bursting strength and reduces noticeable stretching of the hose at elevated pressure. At the same time, the textile reinforcement ensures that the hose is able to withstand collapsing when a vacuum occurs.
  • the hose according to the present invention is particularly suitable for handling hot liquids, especially aqueous liquids or aqueous solutions.
  • the invention is therefore particularly suitable for use as a cooling water hose.
  • a cooling water hose according to the present invention has improved resistance to hydrolysis.
  • the invention also includes a method of manufacturing a hose having a textile reinforcement.
  • This method comprises the steps of extruding a tube of elastomeric material, applying the textile reinforcement to the outer circumference of the extruded tube, the textile reinforcement consisting essentially of fibers selected from the group of aliphatic polyamides, extrusion of a coating of a elastomeric material on the textile reinforcement and subsequent vulcanization of the resulting tube, characterized in that fibers are selected as a textile reinforcement with a hot air shrinkage less than 2.5%, preferably less than 2.3%, more preferably less than 2.1%, wherein the Hot air shrinkage according to DIN 53866 at 180 0 C, 2 min and a bias of 5 mN / tex is to be determined.
  • the hose can be placed on a curing mandrel, whereby the resulting tube assumes a shape corresponding to the shape of the curing mandrel.
  • the vulcanization can be carried out, for example, in saturated steam in an autoclave.
  • the finished tube preferably has a curved part or a bend in its length.
  • the fibers of the textile reinforcement are not treated with an adhesion improver.
  • the fibers of the textile reinforcement are therefore preferably free from adhesion improvers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Woven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
PCT/EP2008/067835 2008-01-23 2008-12-18 Verstärkter schlauch Ceased WO2009092502A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
RU2010134897/05A RU2480338C2 (ru) 2008-01-23 2008-12-18 Армированный шланг
KR1020107018493A KR101498915B1 (ko) 2008-01-23 2008-12-18 강화 호스
AT08871433T ATE508863T1 (de) 2008-01-23 2008-12-18 Verstärkter schlauch
US12/812,616 US20110114214A1 (en) 2008-01-23 2008-12-18 Reinforced hose
EP08871433A EP2234801B1 (de) 2008-01-23 2008-12-18 Verstärkter schlauch
JP2010543405A JP5425098B2 (ja) 2008-01-23 2008-12-18 補強ホース
CN2008801254281A CN101925454B (zh) 2008-01-23 2008-12-18 增强软管

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EPPCT/EP2008/000481 2008-01-23
EP2008000481 2008-01-23
EP08162622.8 2008-08-19
EP08162622 2008-08-19

Publications (1)

Publication Number Publication Date
WO2009092502A1 true WO2009092502A1 (de) 2009-07-30

Family

ID=40350015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/067835 Ceased WO2009092502A1 (de) 2008-01-23 2008-12-18 Verstärkter schlauch

Country Status (8)

Country Link
US (1) US20110114214A1 (enExample)
EP (1) EP2234801B1 (enExample)
JP (1) JP5425098B2 (enExample)
KR (1) KR101498915B1 (enExample)
CN (1) CN101925454B (enExample)
AT (1) ATE508863T1 (enExample)
RU (1) RU2480338C2 (enExample)
WO (1) WO2009092502A1 (enExample)

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EP2234801A1 (de) 2010-10-06
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RU2010134897A (ru) 2012-02-27
CN101925454A (zh) 2010-12-22
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ATE508863T1 (de) 2011-05-15
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