WO2013057734A1 - Laminated polyethylene woven fabric pipes - Google Patents

Laminated polyethylene woven fabric pipes Download PDF

Info

Publication number
WO2013057734A1
WO2013057734A1 PCT/IN2012/000056 IN2012000056W WO2013057734A1 WO 2013057734 A1 WO2013057734 A1 WO 2013057734A1 IN 2012000056 W IN2012000056 W IN 2012000056W WO 2013057734 A1 WO2013057734 A1 WO 2013057734A1
Authority
WO
WIPO (PCT)
Prior art keywords
layers
layer
density polyethylene
layered pipe
pipes
Prior art date
Application number
PCT/IN2012/000056
Other languages
French (fr)
Inventor
Vikesh GUPTA
Original Assignee
Gupta Vikesh
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 Gupta Vikesh filed Critical Gupta Vikesh
Priority to CN201280061688.3A priority Critical patent/CN104010804B/en
Publication of WO2013057734A1 publication Critical patent/WO2013057734A1/en

Links

Classifications

    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin 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
    • 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
    • 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
    • F16L11/085—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided 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
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Definitions

  • the subject matter described herein relates to multilayer pipes for transporting liquids, gases, and the like and more particular to multilayer pipes which comprises individual layers structured of polyethylene.
  • pipes are used to transport a wide variety of substances such as liquid, gases, or the like to a wide variety of locations.
  • Conventional pipes which were made of steel or cast iron are now being replaced by plastic pipes.
  • These pipes are manufactured of single layer film.
  • the pipes are manufactured of various materials that exhibit better mechanical properties.
  • Such pipes are capable of joints according to the requirements.
  • the subject matter described herein relates to multilayer pipes for transporting liquids, gases, and the like and more particular to multilayer pipes which comprises individual layers structured of polyethylene.
  • the multilayer pipes are provided with at least three concentric layers.
  • the three concentric layers of the multi layered pipe includes upper, middle and lower layer.
  • the layers (upper, middle and lower) use different grades of polyethylene.
  • the upper layer and lower layer are made of linear low density polyethylene (L.L.D.P.E.) and low density polyethylene (L.D.P.E.)
  • the middle layer is made of high density polyethylene (H.D.P.E.) wherein the middle layer is fabricated in warp and weft fashion.
  • H.D.P.E. high density polyethylene
  • the multilayer pipes are provided with at least five concentric layers.
  • the layers use different grades of polyethylene designed in an alternate arrangement.
  • the five layers are structured with alternate application of linear low density polyethylene (L.L.D.P.E.) & low density polyethylene (L.D.P.E.) and high density polyethylene (H.D.P.E.).
  • the middle layer is woven with fabrics (in warp and weft fashion) on a circular loom.
  • the lower and upper layers are pasted to the middle layer by a pasting machine.
  • the layers are sealed together by a sealing machine.
  • the sealed layers are folded to result in pipes.
  • the objective of the present invention is to provide mechanically strong, lighter and efficient pipes for various applications.
  • FIG.l illustrates a cross sectional view of multi-layered pipe, according to one embodiment of the present subject matter.
  • FIG.2 illustrates a front view of a three layered pipe, according to one embodiment of the present subject matter.
  • FIG.3 illustrates a front view of a five layered pipe, according to one embodiment of the present subject matter.
  • FIG.l illustrates a cross sectional view of a multi-layered pipe 100, according to one embodiment of the present subject matter.
  • the term "multi-layered pipe” refers to structures defining a cavity there through for conducting a fluid, including, without limitation, any liquid, gas, finely divided solid, or the like.
  • the wall of the multi-layered pipe 100 is structured with at least three concentric layers, in a preferred embodiment of the present subject matter.
  • the shape of the pipe 100 is not restricted to any limited geometry until they define a passageway there through.
  • the multi-layered pipe 100 is provided with at least three concentric layers.
  • the layers further include upper 102, middle 104 and lower layer 106.
  • these layers use different grades of polyethylene.
  • the upper layer 102 and lower layer 106 are made of linear low density polyethylene (L.L.D.P.E.) and low density polyethylene (L.D.P.E.).
  • the middle layer 104 fabricated in warp and weft fashion 108 is composed of high density polyethylene (H.D.P.E.), in an embodiment of the present subject matter.
  • the high density polyethylene is defined by a density of greater or equal to 0.941 g/cm .
  • the presence of high density polyethylene in the middle layer 104 strengthens the multi-layered pipes 100.
  • the high density polyethylene is used to manufacture tape by using extrusion machine, in an embodiment of the present subject matter.
  • the tape is subsequently used to weave to make fabric.
  • the weaving of fabric is done on a circular loom (not shown).
  • the circular loom can be equipped with the electronic control systems to achieve high performances of the layers.
  • the electronic control systems may include sensors, microcontrollers, and the like.
  • the lower layer 106 and upper layer 102 are laminated on a lamination machine (not shown).
  • the laminated lower layer 106 and upper layer 102 are pasted with the middle layer 104 woven with fabric to enfold the middle layer 104 with the upper layer 102 and the lower layer 106 (shown in FIG.2 also).
  • the layers are pasted by a pasting machine (not shown), in an embodiment of the present subject matter.
  • the pasted layers are folded and sealed by a sealing machine (not shown) in various shapes as per requirements, which subsequently results in pipes.
  • the pipes 100 manufactured with such design are less heavy as the layers in the pipes 100 are woven with fabric and various grades of polyethylene.
  • the multi-layered pipe 100 facilitates easy handling with the pipes 100.
  • the multilayered pipe 100 includes five layers of different grades of polyethylene, as shown in FIG.3.
  • the five layers are structured with alternate arrangement of linear low density polyethylene (L.L.D.P.E.) & low density polyethylene (L.D.P.E.) and high density polyethylene (H.D.P.E.).
  • the second and fourth layer of the five layered pipe is fabricated in warp and weft fashion.
  • the first, third and fifth layers are subsequently laminated by the lamination machine thereafter which the first, third and fifth layers are subsequently pasted with the second and fourth layers woven with warp and weft fashion to finally results in pipes 100.
  • the presence of five layers in the multilayered pipes 100 facilitates safe transmission of highly pressurized flow of water.
  • the multi-layered pipes 100 advantageously provide a pipe 100 capable of strongly withstanding the mechanical stress exerted by the pressurized water or gases.
  • the presence of at least three layers in the pipe 100 helps in protecting the pipe 100 against aggressive chemicals such as ozone and chlorinated derivatives.
  • the alternate layers may be provided with various additives which protect the layers from ultraviolet radiations.
  • the presence of woven fabric in middle layer makes the pipe 100 lighter in weight which provides easy handling of the pipes 100.
  • the advantage of multi layers (three or five layers) over single layer boosts mechanical strength of the pipes 100 which increases the overall efficiency and life of the pipes 100 also.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)

Abstract

A multi-layered pipe 100 for distributing fluid which includes at least three concentric layers comprising an upper layer 102, a middle layer 104 and a lower layer 106. The upper layer 102 and the lower layer 106 are made of linear low density polyethylene and low density polyethylene whereas the middle layer 104 is made of high density polyethylene. The invention discloses that middle layer is woven with fabric in warp and weft fashion 108 which is subsequently pasted to the lower and upper layers laminated by a laminating machine.

Description

LAMINATED POLYETHYLENE WOVEN FABRIC PIPES
TECHNICAL FIELD
The subject matter described herein relates to multilayer pipes for transporting liquids, gases, and the like and more particular to multilayer pipes which comprises individual layers structured of polyethylene.
BACKGROUND
Generally, pipes are used to transport a wide variety of substances such as liquid, gases, or the like to a wide variety of locations. Conventional pipes which were made of steel or cast iron are now being replaced by plastic pipes. These pipes are manufactured of single layer film. With the advancement in technologies, the pipes are manufactured of various materials that exhibit better mechanical properties. Such pipes are capable of joints according to the requirements.
However, such pipes, being structured of single layer film, are less capable to mechanically withstand the stress exerted by the pressurized water or gases. Additionally, the single layer pipes are heavy and thus difficult to handle too. Further, the presence of only single layer makes the pipes prone to damage by aggressive chemicals such as ozone and chlorinated derivatives. Moreover, the single layer film lacks mechanical strength which reduces the overall efficiency of the pipes. Therefore, there is a need for pipes that overcome the above and other shortcomings present in conventional technologies. SUMMARY
The subject matter described herein relates to multilayer pipes for transporting liquids, gases, and the like and more particular to multilayer pipes which comprises individual layers structured of polyethylene.
In an embodiment of the present subject matter, the multilayer pipes are provided with at least three concentric layers.
In an embodiment of the present subject matter, the three concentric layers of the multi layered pipe includes upper, middle and lower layer. In an embodiment of the present subject matter, the layers (upper, middle and lower) use different grades of polyethylene.
In an embodiment of the present subject matter, the upper layer and lower layer are made of linear low density polyethylene (L.L.D.P.E.) and low density polyethylene (L.D.P.E.)
In an embodiment of the present subject matter, the middle layer is made of high density polyethylene (H.D.P.E.) wherein the middle layer is fabricated in warp and weft fashion.
In another embodiment of the present subject matter, the multilayer pipes are provided with at least five concentric layers.
In an embodiment of the present subject matter, the layers (five layers) use different grades of polyethylene designed in an alternate arrangement. In an embodiment of the present subject matter, the five layers are structured with alternate application of linear low density polyethylene (L.L.D.P.E.) & low density polyethylene (L.D.P.E.) and high density polyethylene (H.D.P.E.). In an embodiment of the present subject matter, the middle layer is woven with fabrics (in warp and weft fashion) on a circular loom.
In an embodiment of the present subject matter, the lower and upper layers are pasted to the middle layer by a pasting machine.
In an embodiment of the present subject matter, the layers are sealed together by a sealing machine.
In an embodiment of the present subject matter, the sealed layers are folded to result in pipes.
In an embodiment of the present subject matter, the objective of the present invention is to provide mechanically strong, lighter and efficient pipes for various applications.
BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
The aforementioned aspects and other features of the present disclosure will be explained in the following description, taken in conjunction with the accompanying drawing, wherein:
FIG.l illustrates a cross sectional view of multi-layered pipe, according to one embodiment of the present subject matter.
FIG.2 illustrates a front view of a three layered pipe, according to one embodiment of the present subject matter.
FIG.3 illustrates a front view of a five layered pipe, according to one embodiment of the present subject matter. DETAILED DESCRIPTION
The embodiments of the present subject matter are described in detail with reference to the accompanying drawings. However, the present subject matter is not limited to these embodiments which are only provided to explain more clearly the present subject matter to the ordinarily skilled in the art of the present disclosure. In the accompanying drawings, like reference numerals are used to indicate like components.
Extruded pipes made of thermoplastic polymers are well known in variety of applications such as in the building industry for domestic water pipes, radiator pipes, floor heating pipes, in ship buildings, and the like. FIG.l illustrates a cross sectional view of a multi-layered pipe 100, according to one embodiment of the present subject matter. The term "multi-layered pipe" refers to structures defining a cavity there through for conducting a fluid, including, without limitation, any liquid, gas, finely divided solid, or the like. The wall of the multi-layered pipe 100 is structured with at least three concentric layers, in a preferred embodiment of the present subject matter. The shape of the pipe 100 is not restricted to any limited geometry until they define a passageway there through.
As illustrated in FIG.l, the multi-layered pipe 100 according to the present subject matter is provided with at least three concentric layers. The layers further include upper 102, middle 104 and lower layer 106. In a preferred embodiment of the present subject matter, these layers (upper, middle and lower) use different grades of polyethylene. In an embodiment of the present subject matter, the upper layer 102 and lower layer 106 are made of linear low density polyethylene (L.L.D.P.E.) and low density polyethylene (L.D.P.E.). The middle layer 104 fabricated in warp and weft fashion 108 is composed of high density polyethylene (H.D.P.E.), in an embodiment of the present subject matter. The high density polyethylene is defined by a density of greater or equal to 0.941 g/cm . The presence of high density polyethylene in the middle layer 104 strengthens the multi-layered pipes 100.
During manufacturing of the pipes 100, the high density polyethylene is used to manufacture tape by using extrusion machine, in an embodiment of the present subject matter. The tape is subsequently used to weave to make fabric. The weaving of fabric is done on a circular loom (not shown). The circular loom can be equipped with the electronic control systems to achieve high performances of the layers. The electronic control systems may include sensors, microcontrollers, and the like. In an embodiment of the present subject matter, the lower layer 106 and upper layer 102 are laminated on a lamination machine (not shown). The laminated lower layer 106 and upper layer 102 are pasted with the middle layer 104 woven with fabric to enfold the middle layer 104 with the upper layer 102 and the lower layer 106 (shown in FIG.2 also). The layers are pasted by a pasting machine (not shown), in an embodiment of the present subject matter. The pasted layers are folded and sealed by a sealing machine (not shown) in various shapes as per requirements, which subsequently results in pipes. The pipes 100 manufactured with such design are less heavy as the layers in the pipes 100 are woven with fabric and various grades of polyethylene. The multi-layered pipe 100, according to the present subject matter, facilitates easy handling with the pipes 100.
In another embodiment of the present subject matter, the multilayered pipe 100 includes five layers of different grades of polyethylene, as shown in FIG.3. The five layers are structured with alternate arrangement of linear low density polyethylene (L.L.D.P.E.) & low density polyethylene (L.D.P.E.) and high density polyethylene (H.D.P.E.). In the present embodiment of the present subject matter, the second and fourth layer of the five layered pipe is fabricated in warp and weft fashion. The first, third and fifth layers are subsequently laminated by the lamination machine thereafter which the first, third and fifth layers are subsequently pasted with the second and fourth layers woven with warp and weft fashion to finally results in pipes 100. The presence of five layers in the multilayered pipes 100 facilitates safe transmission of highly pressurized flow of water.
The multi-layered pipes 100 according to the present subject matter advantageously provide a pipe 100 capable of strongly withstanding the mechanical stress exerted by the pressurized water or gases. Secondly, the presence of at least three layers in the pipe 100 helps in protecting the pipe 100 against aggressive chemicals such as ozone and chlorinated derivatives. Additionally, the alternate layers may be provided with various additives which protect the layers from ultraviolet radiations. Further, the presence of woven fabric in middle layer makes the pipe 100 lighter in weight which provides easy handling of the pipes 100. Moreover, the advantage of multi layers (three or five layers) over single layer, as compared to prior technologies, boosts mechanical strength of the pipes 100 which increases the overall efficiency and life of the pipes 100 also.
Although the subject matter has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the subject matter, will become apparent to persons skilled in the art upon reference to the description of the subject matter. It is therefore contemplated that such modifications can be made without departing from the spirit or scope of the present subject matter as defined.

Claims

A multi-layered pipe 100 for distributing fluid comprising: at least three concentric layers comprising an upper layer 102, a middle layer 104 and a lower layer 106; the upper layer 102 and the lower layer 106 are made of linear low density polyethylene and low density polyethylene; the middle layer 104 is made of high density polyethylene; wherein the middle layer is woven with fabric in warp and weft fashion 108 which is subsequently pasted to the lower and upper layers laminated by a laminating machine.
The multi-layered pipe 100 as claimed in claim 1, wherein the weaving of layers is done on a circular loom.
The multi-layered pipe 100 as claimed in claim 1 comprises of five concentric layers.
A method of manufacturing a multi-layered pipe 100 for distributing fluid: arranging at least three concentric layers comprising an upper layer 102, a middle layer 104 and a lower layer 106, wherein; the upper layer 102 and the lower layer 106 are made of linear low density polyethylene and low density polyethylene; the middle layer 104 is made of high density polyethylene; weaving middle layer 104 with fabric in warp and weft fashion 108; laminating lower 106 and upper layer 102 by a laminating machine; pasting the laminated lower and upper layer to the middle layer sealing the layers by a sealing machine.
The method of manufacturing the multi-layered pipe 100 for distributing fluid as claimed in claim 5, wherein the high density polyethylene manufactures tape by an extrusion machine.
6. The method of manufacturing the multi-layered pipe 100 for distributing fluid as claimed in claim 5, wherein the tape is provided to weave the fabric.
7. The method of manufacturing the multi-layered pipe 100 for distributing fluid as claimed in claim 5, wherein the weaving of layers is done on a circular loom.
8. The method of manufacturing the multi-layered pipe 100 for distributing fluid as claimed in claim 5, wherein the weaving is controlled by an electronic control system.
9. The method of manufacturing the multi-layered pipe 100 for distributing fluid as claimed in claim 8, wherein the electronic control system includes sensors and microcontrollers.
10. The method of manufacturing the multi-layered pipe 100 for distributing fluid as claimed in claim 5, wherein the alternate layers are provided with various additives to protect the layers from ultraviolet radiations.
PCT/IN2012/000056 2011-10-20 2012-01-25 Laminated polyethylene woven fabric pipes WO2013057734A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280061688.3A CN104010804B (en) 2011-10-20 2012-01-25 Laminated polyethylene braided fabric pipe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN3009/DEL/2011 2011-10-20
IN3009DE2011 2011-10-20

Publications (1)

Publication Number Publication Date
WO2013057734A1 true WO2013057734A1 (en) 2013-04-25

Family

ID=45815932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2012/000056 WO2013057734A1 (en) 2011-10-20 2012-01-25 Laminated polyethylene woven fabric pipes

Country Status (2)

Country Link
CN (1) CN104010804B (en)
WO (1) WO2013057734A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9662826B2 (en) 2013-08-12 2017-05-30 Prinsco, Inc. Coilable dual wall corrugated pipe and related method
WO2020242513A1 (en) * 2019-05-30 2020-12-03 Delta Plastics Of The South (Arkansas Corporation) Woven irrigation tubing, apparatus and method of making same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500872B (en) * 2014-12-31 2016-08-24 中州大学 The high pressure ultra-thin Agricultural hose of a kind of three-layer co-extruded compound lining

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2045383A (en) * 1979-03-24 1980-10-29 Pest Megyei Mueanyagiparti Val Woven hoses
FR2520394A1 (en) * 1982-01-22 1983-07-29 Tuyaux Flexibles Forge Ste Nle FLEXIBLE WOVEN PIPE AND MANUFACTURING METHOD THEREOF
AU615807B2 (en) * 1984-11-05 1991-10-10 Gale Pacific Limited Layered fabric
US5293906A (en) * 1989-12-18 1994-03-15 Quadrax Corporation Circular loom for and method of weaving ribbon-shaped weft
US20040244858A1 (en) * 2001-07-24 2004-12-09 In-Seon Jeong Spiral hose using polyethylene
US20040261876A1 (en) * 2003-06-27 2004-12-30 Warren Anthony G. High pressure flexible conduit
US20070062595A1 (en) * 2005-09-16 2007-03-22 Ashok Bhatnagar Reinforced plastic pipe
CN101413607A (en) * 2008-11-27 2009-04-22 泰州五行消防水带有限公司 Single-sided adhesive tape and manufacturing method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2308502Y (en) * 1997-11-04 1999-02-24 朱金仓 Plastic braided compound film hose

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2045383A (en) * 1979-03-24 1980-10-29 Pest Megyei Mueanyagiparti Val Woven hoses
FR2520394A1 (en) * 1982-01-22 1983-07-29 Tuyaux Flexibles Forge Ste Nle FLEXIBLE WOVEN PIPE AND MANUFACTURING METHOD THEREOF
AU615807B2 (en) * 1984-11-05 1991-10-10 Gale Pacific Limited Layered fabric
US5293906A (en) * 1989-12-18 1994-03-15 Quadrax Corporation Circular loom for and method of weaving ribbon-shaped weft
US20040244858A1 (en) * 2001-07-24 2004-12-09 In-Seon Jeong Spiral hose using polyethylene
US20040261876A1 (en) * 2003-06-27 2004-12-30 Warren Anthony G. High pressure flexible conduit
US20070062595A1 (en) * 2005-09-16 2007-03-22 Ashok Bhatnagar Reinforced plastic pipe
CN101413607A (en) * 2008-11-27 2009-04-22 泰州五行消防水带有限公司 Single-sided adhesive tape and manufacturing method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 200934, Derwent World Patents Index; AN 2009-H89296, XP002673647 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9662826B2 (en) 2013-08-12 2017-05-30 Prinsco, Inc. Coilable dual wall corrugated pipe and related method
WO2020242513A1 (en) * 2019-05-30 2020-12-03 Delta Plastics Of The South (Arkansas Corporation) Woven irrigation tubing, apparatus and method of making same
US11441706B2 (en) 2019-05-30 2022-09-13 Delta Plastics of the South Woven irrigation tubing, apparatus and method of making same
US11674619B2 (en) 2019-05-30 2023-06-13 Delta Plastics of the South Woven irrigation tubing, apparatus and method of making same
US11746934B2 (en) 2019-05-30 2023-09-05 Delta Plastics of the South Woven irrigation tubing

Also Published As

Publication number Publication date
CN104010804B (en) 2016-10-26
CN104010804A (en) 2014-08-27

Similar Documents

Publication Publication Date Title
CN102958689B (en) Waterproof breathable composite materials for fabrication of flexible membranes and other articles
AU2004274073B2 (en) A flexible unbonded pipe and a method for producing such pipe
CA2445586C (en) Improved composite tubing
CA2794989C (en) Flexible tube and method for producing same
US9302845B2 (en) Composite sheet and cargo container comprising same
CN104421536B (en) The hot Wrapping formed manometer tube of composite winding belt and forming method
EP2151316A1 (en) Multi-film structures for thermal insulation
US20140116566A1 (en) Pipe liner and method of relining a sewer pipe
JP4759404B2 (en) Hose manufacturing method
HRP20010386A2 (en) Film laminates as high barrier films and use thereof in vacuum insulation panels
WO2013057734A1 (en) Laminated polyethylene woven fabric pipes
CN205716065U (en) For interspersed continuous reinforced plastic composite pipe
WO2014032674A1 (en) An unbonded flexible pipe
CN213479408U (en) High-barrier flexible composite pipe
CN203453652U (en) Pressure pipe formed by hot winding of composite winding strips
KR101357151B1 (en) Barrier composite films sex with cortical re-frost-proof water meters, and volume expansion absorbing material and its manufacturing method
CN213361391U (en) Multi-layer cooling water pipe
AU615807B2 (en) Layered fabric
CN204622735U (en) A kind of fluid sealant composite package film of high-blocking corrosion-resisting
MXPA06006436A (en) Reinforcing strip with barrier layer for flexible pipes.
CN212536987U (en) Cooling pipe reaches battery package and automobile body cooling pipeline including it
CN220228155U (en) Composite pipeline
JP4089758B2 (en) Flexible container bag
CN214983834U (en) Prevention of seepage passes through rubber composite membrane
WO2024003891A1 (en) Co-extruded multi-layer polypropylene plastic pipes for use in wastewater drainage stack and method of manufacture therefor

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12708407

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12708407

Country of ref document: EP

Kind code of ref document: A1