TWI457513B - Tape-wrapped multilayer tubing and methods making the same - Google Patents

Description

Sealing tape coated multi-layer pipe fitting and preparation method thereof [related application]

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The present invention is directed to a fluid delivery system that avoids loss of fluid diffusion. In particular, the present invention relates to a tape-wrapped multilayer tube for use in a fluid cooling system and a method of making same.

There are many types of fluid transfer systems that require fluid between points in a pipe transport system. Whether the loss is due to water vapor transport or loss of composition of the mixture fluid, the diffusion of fluid into the system, particularly in closed systems, is a problem. For example, if the three components form a fluid mixture and the compositions have different diffusion rates or permeable rates, then these composition density ratios will change over time due to the high diffusivity in known tubing.

Another example of this problem arises in the field of electronic cooling systems. There is a need to cool semiconductor wafers in this area. When this need rises, traditional designs face significant challenges. Furthermore, the new high-performance processors have very high heat dissipation requirements. However, conventional cooling methods involving loading fan heat sinks and heat pipes have several limitations. Loading a fan heat sink typically does not move the air fast enough to cool the new processor or to remove hot air from the housing of the fixed electronic component. Similarly, the heat pipe is limited in heat dissipation and the distance from which heat can be moved from the heat source. Therefore, conventional cooling techniques using heat pipes or load fan heat sinks are not sufficient to cool new electronic components such as high performance processors.

A system using a liquid coolant can effectively cool a semiconductor wafer that produces significant heat. The liquid cooling system requires the use of tubing to transport fluid. In the U.S. Patent No. 7,000,684, the disclosure of which is incorporated herein by reference in its entirety in its entirety in the entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all In this system, the flow system flows through the tube to dissipate the heat generated by the semiconductor.

In these systems, the water vapor density gradient exists across the boundary of the pipe. In the case of cooling, the heated coolant is dissipated via the wall of the tube because the tube has a low density on one side. The diffusion continues to be driven under this gradient until a substantial equilibrium is established on both sides of the inner tube, and the water vapor density gradient is substantially zero.

Water vapor diffusion in liquid cooling systems is a problem and can be catastrophic if the system is allowed to dry up. In a liquid cooling system using a radiator, fluid loss can result in a gradual loss of thermal efficiency. Moreover, in a liquid cooling system that draws fluid, substantial loss of fluid eventually leads to overheating.

One of the problems of water vapor loss is to use tubes that are known to have low water vapor transmission rates. One example of the tube is a metal tube. The pipe fittings have design challenges due to their hard properties, metal cost and assembly difficulties. Furthermore, any metal mixing in the system can cause corrosion and blockage of the tube, barrel or radiator.

It is required to be a pipe with high elasticity and very low water vapor transmission rate.

Embodiments of the present invention relate to the construction of a hybrid multi-layer pipe that can combine one of the barrier high diffusion elasticity and the low water vapor transmission rate. Accordingly, it is an object of the present invention to provide a tape-wrapped multilayer tubular member that is resilient and has an effective moisture diffusion barrier, and a method of making the tubular member in a continuous and in-line process.

The multi-layer tape-wrapped tube is configured to effectively impede moisture diffusion and is manufactured by continuous in-line processing. The multi-layer tape-wrapping tubular member can have three different layers: an inner tube layer, a diffusion barrier layer, and an outer shell layer. The inner tube layer is in contact with liquid and moisture. The water vapor system that is typically diffused through the tube is obstructed by the diffusion barrier layer. The diffusion barrier layer is a laminate comprising a diffusion barrier film located between the layers of the thermoplastic layer having a very low water vapor diffusivity. The diffusion barrier layer is wrapped one or more times around the inner tubular member. The outer envelope is a polymeric envelope that can be joined to the diffusion barrier layer that is coated with the inner tubular member.

Another feature of the invention is a method of making a multi-layer tape-wrapped tubular member effective in-line and continuous processing. The inner tubular member and the diffusion barrier seal are first directed to the cladding device. The cladding device can diffuse the barrier seal to cover the tubular member and create a seam. The seal, the diffusion bandage inner tube is then directed to the outer casing to protrude from one of the protrusions on the tube.

In the following description, many details are explained for explanation. However, the skilled artisan will understand that the invention may be practiced without these specific details.

Figures 1A through 1C depict how liquid in a cooling system using a typical polymer tube is lost due to moisture diffusion. Figure 1A shows a polymer tube 100 that is filled with some of the original amounts of water vapor 110 at time (t) = 0. The water vapor 110 is 100% raw water vapor in the system.

Figure 1B presents the same polymer tube 100 at a later time t = Δt after time (t) = 0. At time t = Δt, since the inside of the tube has a higher density than the outside of the tube, some water vapor is diffused through the wall of the polymer tube. The diffusion particles 120 are escaping systems. When this occurs, the amount of water vapor 130 in the polymeric tubular member 100 is less than the original amount of water vapor 110. Figure 1C depicts the same polymer tube 100 at time t = t _{c r i t i c a l} . At time t = _{t c r i t i c a l} , almost all of the water vapor in the polymer tube 100 is diffused through the wall of the tube. The tube ends with a water vapor density 140 equal to the external density.

2A-2C facilitates an understanding of the present invention by delineating how to use the diffusion barrier to achieve an expected solution to the water vapor diffusion problem of the diffusible tubular in the cooling system. 2A-2C depict one system in which polymeric tubing 200 is encapsulated within diffusion barrier layer 220 at a substantial sealing point 210. In one embodiment of the invention, the diffusion barrier layer 220 is a multilayer tape laminate as shown in FIG. Figure 2A depicts the polymer tube 200 at time (t) = 0. In Figure 2A, the polymeric tubular member 200 is filled with a plurality of original amounts of water vapor 230, and the diffusion barrier cladding region 240 is empty. The water vapor 230 is 100% raw water vapor in the system.

Figure 2B presents the same polymer tube 200 at a later time t = Δt after time (t) = 0. At time t = Δt, since the inside of the tube has a higher density than the outside of the tube, some water vapor is diffused through the wall of the polymer tube. The diffusion particles 250 are escaping systems. When this occurs, the amount of water vapor 260 in the polymeric tubular member 200 is less than the original amount of water vapor 230. Quite, since the diffusion barrier layer has a very low water vapor transfer rate and can capture moisture between the plastic tube member 200 and the diffusion barrier layer 220, the amount of water vapor in the diffusion barrier coating region 240 increases.

Figure 2C depicts the same polymer tube 200 at time (t) = t _{e q u i l i b r i u m} . When the time T = t _{e q u i l i b r i u m} , the required amount of diffusion particles 250 diffuses into the diffusion barrier cladding region 240 equal to the amount of water vapor 270 in the polymer tubular member 200. When the time t=t _{e q u i l i b r i u m} , the water vapor density gradient between the diffusion barrier cladding region 240 and the interior of the polymer tube 200 is substantially zero and equilibrium is achieved.

Figure 3 depicts an embodiment of a multi-layer tape-wrapped tubular member of the present invention. Region 310 is a liquid flowing into one of the liquid cooling systems. The inner tubular member layer 320 is one of the elastic tubular members in contact with the fluid transferred via the region 310. The inner tubular member 320 is preferably substantially cylindrical in shape, although other configurations are contemplated. Some of the preferred characteristics of the inner tubular member layer 320 include, but are not limited to, the following: superior elasticity, kink resistance, retardation, thermomechanical and dimensional stability during the protrusion process, and connector coupling examples without leaky connections. Depending on the application, many grades are potential candidates for the inner tube layer, including but not limited to: (1) thermoplastics such as polyolefins, modified polyolefins, fluoroplastics, polyamides, polyesters and vinyls. (2) Thermoplastic elastomers based on olefins, polybutadiene, polyester, styrene and vinyl chemical elements, and (3) such as acetic acid, polyisobutylene (PIB), EPDM ( EPDM), NBR, SBR and platinum processing or peroxide processing of ruthenium resin. Furthermore, the tube can be reinforced to improve thermomechanical and kink resistance characteristics.

The diffusion barrier sealing layer or layer 330 can provide a coating to limit moisture diffusion. In one embodiment, the diffusion barrier barrier banding layer or layer 330 is wrapped over the inner tube layer 320 and then honey sealed by heat and pressure. In a preferred embodiment, the diffusion barrier layer or layer 330 is resilient and can have the necessary puncture, tear and pull for reliable, consistent and manufacturable cladding, and can create a continuous diffusion barrier for low moisture transport rate characteristics.

The present invention contemplates various barrier banding laminate configurations. For example, Figure 4A depicts a single diffusion barrier sealing sheet layer 400 in accordance with one embodiment of the present invention, wherein the layers are not drawn to scale. In this embodiment, the single diffusion barrier layer 400 is a multi-layer tape sealing layer comprising a diffusion barrier material 410, a thermoplastic film layer 430, 440 and an adhesive layer 420. The diffusion barrier membrane 410 has high resistance to moisture transport. In some embodiments, the diffusion barrier film 410 is an aluminum foil. In other embodiments, the diffusion barrier membrane 410 is a polyamine such as nylon. The diffusion barrier membrane 410 can also be a transparent polymer such as Alcar, Polychlorotrifluoroethylene (PCTFE) manufactured by AlliedSignal, Saran (polyvinylidene chloride) or Tedlar (polyvinyl fluoride) manufactured by DuPont, or the like. Appropriate materials. In some embodiments of the invention, the diffusion barrier film 410 is interposed between the thermoplastic film layers 430, 440. These thermoplastic film layers 430, 440 act as an adhesive which can be heat sealed when appropriate pressure and heat are applied. In a preferred embodiment, the thermoplastic film layers 430, 400 are low density polyethylene having a low melting temperature (120 degrees Celsius). In other embodiments, the outer thermoplastic plastic film layers 430, 440 are from the modified polyethylene family.

In some embodiments, the thermoplastic film layer 430 is adhesively bonded to the diffusion barrier film 410 via the adhesive layer 420. In some embodiments, this bonding is achieved using a less soluble adhesive lamination technique. In some embodiments, the thermoplastic film layer 440 is joined to the diffusion barrier film 410 by a plastic pressure relief coating process by projecting a layer of thermoplastic film on the diffusion barrier film 410 at the ply boundary 450. In some embodiments, a diffusion barrier film 410 comprising a plurality of diffusion barrier materials is interposed between two thermoplastic layers 430, 440.

The thermoplastic layers 430, 440 provide significant advantages over known techniques. During proper heat and pressure treatment, the layers 430 and 440 are reduced in connection with each other, so the use of a thermoplastic layer on both sides of the diffusion barrier promotes continuous and in-line processing to cover the inner tubular member.

Figure 4B provides an example of a preferred barrier tape layer configuration. FIG. 4B depicts a diffusion barrier slab having an additional layer 425. The single diffusion barrier layer 400 is a multi-layer sealing layer comprising a diffusion barrier material 410, a thermoplastic film layer 430, 440 and an adhesive layer 420. The additional layer 425 is a polyamine such as nylon. The inclusion of polyamine in the diffusion barrier sealing sheet layer can greatly improve the tearing force of the barrier film. This tear improvement can provide an unexpected result that can be mixed by the desired result of improved water vapor diffusion. This tearing improvement imparts better bending characteristics to the tubular member. This tearing improvement can cause the tube to be used to maintain the stability of the diffusion barrier at a higher ratio than normal to the barb-joined barbs.

Several embodiments of the invention use more than one diffusion barrier layer 400. With reduced flexibility and more complex construction as a penalty, the multi-diffusion barrier layer will provide puncture, tear, pull and better moisture transport characteristics and will substantially eliminate the single false seal effect.

Referring back to Figure 3, several embodiments of the multi-layer tape-wrapped tubular member include the protection and integration of a substantially sealed tubular member. The thickness of the cladding layer 340 can also modify the kink characteristics of the diffusion barrier sealing sheet layer cladding tube 300. Modifying the thickness of the cladding layer 340 changes the amount of bending of the tube before the knot interferes with fluid flow within the tube. In the preferred embodiment, outer layer 340 is a polymer cladding. The cladding layer also has a combustion retardant composition for better combustion capability characteristics of the full multilayer tube compound.

In several embodiments, the cladding layer 340 is applied using a continuous in-line pressure relief process. In an alternative embodiment, a tube projection process or a semi-pressure protrusion process is used. In still another embodiment, a heat shrink process is used and the cladding layer 340 is applied via a heat shrink tubing. These alternative ways of applying the cladding layer 340 have significant manufacturing advantages, but all contribute to minimizing the chance of erroneous sealing in the diffusion barrier layer 330 due to the use of additional heat and pressure. In a preferred embodiment, the additional heat and pressure from the pressure projecting step further thermally seals the thermoplastic film layers 430, 440 (Fig. 4) to the diffusion barrier material and further joins the diffusion barrier sealing sheet 330 to the inner tube 320. .

The cladding layer 340 also protects the underlying diffusion barrier layer 330 from puncture or tearing during handling, assembly, and clamping. In some embodiments, the barrier barrier encapsulation layer 330 and the cladding layer 340 comprise or include a barb reinforcement layer (not shown) in the cladding layer 340 to improve the kink resistance of the outer envelope layer. In other embodiments, a multi-cladding layer (not shown) is used to further protect the inner layer. In some embodiments, the cladding thickness ranges from one (1) micron to one-half (0.5) inch.

Figure 5 is a flow diagram of a method of making a tape wrapped multi-layered tubular member in accordance with several embodiments of the present invention. In step 555, an inner tubular member and a diffusion barrier sealing laminate are formed. In one embodiment, the inner tubular member is formed by a tubular projecting process, but other methods of forming the inner tubular member are also contemplated. In one embodiment, the barrier banding layer is formed by pressure protrusion treatment to apply two layers of thermoplastic material to the diffusion barrier material. It is also possible to apply a hot plastic using a semi-pressure protrusion treatment. In some embodiments, an adhesive is disposed between the diffusion barrier material and the thermoplastic as an adhesive layer.

Other treatments such as prominence, clamping or lamination may also be used to construct the layers of the present invention. While these specific examples are given to explain how the layers of the present invention are constructed, those skilled in the art will readily appreciate that any other suitable processing may be utilized.

Next, at step 560, the material is fed to a wrapper. The inner tube that has not been coated is fed to the first wrapper. In several embodiments, the previously wrapped and sealed tubular member is fed to a continuous coater or a wrapper downstream of the first cladding. In some embodiments, the wrapper is a cigarette wrap-around wrapper as explained in Figure 6 below. In other embodiments, the flag wrap is performed with a wrapper (as shown in Figures 7A, 7B, and 7C), spiral coated (as shown in Figure 8), or any other suitable wrap.

Next, in step 565, the wrapper coats the layer diffusion barrier seal laminate around the inner tube. Alternatively, the wrapper coats an additional layer of diffusion barrier seal laminate that has been wrapped around the inner tubular member. The wrapper encloses the inner tubular member with a layer of overlapping diffusion barrier seal plys down the length of the substantial tubular member.

At step 570, the coated tubular member is fed to the first sealant. At step 575, the coated tubular seam is sealed wherein the sealant applies heat and pressure to the seam. Preferably, the sealant applies sufficient heat and pressure to melt the diffusion barrier seal ply thermoplastic and adhere the seam together. The use of a temperature of about 120 degrees Celsius is sufficient to exceed the softening point and is sufficient to adhere to the seam.

In several embodiments of the invention, only the seam adhesive layers are sealed together, and the diffusion barrier seal laminate is not adhered to the inner tubular members. This embodiment is preferred when the inner tubular member is a resin. The resin is not bonded to the inner layer of the diffusion barrier sealing laminate, so that when the tubular is bent, it can slide within the diffusion barrier sealing laminate. This sliding effectively reduces the tear diffusion barrier seal laminate. In other embodiments, the sealant applies sufficient heat and pressure to adhere the seam and the inner tube to the diffusion barrier seal. In some embodiments, an additional sealant downstream of the first sealant can supply additional heat and pressure to further adhere the inner tube to the diffusion barrier seal and adhere the seam together.

In some embodiments, the coated tubular member is fed to an additional wrapper and sealant downstream of one of the previous steps at step 580. In some embodiments, these wrappers and sealants create seams in different configurations around the tube and in different axial positions. In other embodiments, at step 580, the tube is fed only through a wrapper and a sealant.

In some embodiments, a cladding layer is applied to the coated and sealed tubular member in step 590. Alternatively, the tube does not have a cladding layer. In several embodiments, the cladding layer is applied using a pressure relief treatment. In other embodiments, the cladding layer is applied using a semi-pressure protrusion treatment. In several embodiments, the treatment used to apply the cladding layer to the coated tubular member further adheres the inner tubular member to the diffusion barrier seal and adheres the seams together.

In several embodiments of the invention, heat shrink processing is used to apply the cladding to the tape-wrapped tubular member. According to this embodiment, the inner tubular members are first coated and sealed one or more times in a continuous and in-line process, and then individually wrapped in a heat shrinkable cladding.

Figures 6 through 9 illustrate various methods of encasing the diffusion barrier sealing laminate surrounding the inner tubular member, respectively. These specific coating methods are disclosed herein, however, other types of coatings are also contemplated.

Fig. 6 is a view showing a coating method commonly known as "cigarette coating" according to an embodiment of the present invention. In this embodiment, the inner tubular member 600 is fed to the wrapper 610 and the diffusion barrier seal ply 620. As explained above and in Figure 5, the inner tubular member 600 can be selectively protruded prior to and at the same time as this treatment. Likewise, the diffusion barrier sealing laminate can be processed upstream, before and at the same time. When the inner tubular member is guided through the wrapper 610, the diffusion barrier sealing strip 620 is fed via a device 630 that can fold the diffusing barrier seal 620 around the inner tubular member 600. After folding, the diffusion barrier seal laminate overlap region 640 overlaps another portion of the diffusion barrier seal laminate 620. The diffusion barrier sealing layer overlap ratio preferably ranges from ten to twenty-five percent, however, other overlapping ratios are also contemplated. The overlapping portions of the diffusion barrier sealing ply 620 have a thermoplastic surface that can be heat sealed together (as shown in Figures 4 and 440). A diffusion barrier encapsulation laminate inner tube 650 having a diffusion barrier enveloping laminate overlap region 640 is fed to a heat sealant 660. The heat sealant 660 can provide suitable heat and pressure to the diffusion barrier seal laminate overlap region 640 and to the thermoplastic material in contact with the inner tubular member to seal the diffusion barrier seal laminate from the inner tubular member 650.

In one embodiment of the invention, the cladding and sealing process is repeated prior to encapsulation to provide one or more additional layers of diffusion barrier encapsulation laminate (not shown). In one embodiment, one or more of the diffusion barrier banding sheets use the same coating method, but may alternatively be coated using different methods. When the same coating method is used to coat the inner tubular member 600 having the multi-layer diffusion barrier sealing ply 620, the slits are preferably offset to provide a greater distance between the diffusion barrier enveloping laminate overlapping regions 640.

In one embodiment, the inner tubular member 600, which is covered with at least one layer of the diffusion barrier sealing strip 620 and sealed with a heat sealant 660, is directed to the protrusions 680 and the outer shell layer 690 is applied. Various methods can be used to apply the outer shell 690, including but not limited to continuous in-line pressure protrusions, tubular protrusions or semi-pressure protrusions.

Figures 7A through 7C illustrate the closure of a multi-layer tube of the present invention when coated with a flag. This coating method encloses the diffusion barrier seal laminate 720 around the inner tubular member 710 using a banner wrapper (not shown). The flag 730 of the flag wrapped inner tube is then folded over the cladding tube and sealed. In some embodiments, the length of the flag folded down onto the coated tubular member ranges from about one (1) micron to twenty (20) micrometers. The length of the sealed folded banner strip 730 is the length of the wrapped tubular member. In one embodiment, the cladding and sealing process is repeated prior to encapsulation to provide one or more additional layers of diffusion barrier encapsulation laminate (not shown). In one embodiment, the one or more diffusion barrier banding laminate additional layers use the same coating method, but may alternatively be coated using different methods. Figure 7C illustrates a sealed flag wrapped inner tubular member 740 after application of the outer shell 750.

In other embodiments of the invention in which the flag wrap is performed, the flag is trimmed after being wrapped. Figures 7D, 7E and 7F illustrate a flag cladding tube member in accordance with this embodiment of the present invention. As shown in FIG. 7D, the diffusion barrier sealing layer 720 is wrapped around the inner tubular member 710. The vertically extending banner 730 of the flag-wrapped inner tubular member is then trimmed as a partial continuous, in-line process. Figure 7E illustrates the flagged tube fitting after being trimmed. As shown, the small stump 760 is maintained and slightly extended from the inner tubular member 710. Figure 7C illustrates a sealed flag wrapped inner tubular member 740 after application of the outer shell 750.

Figure 8 illustrates the closure of a multi-layer tube of the present invention when a spiral coating is used. This coating method encloses the diffusion barrier sealing ply 820 around the inner tubular member 810 using a spiral wrapper (not shown). The spiral wrapper encloses the diffusion barrier seal ply 820 around the length of the inner tubular member 810 in a continuous overlapping spiral. The spiral coated diffusion barrier sealing laminate can form an overlap region 830. The overlap ratio of the spiral coated diffusion barrier sealing laminate is preferably from 25 to 55 percent, however, any other overlapping ratio is also contemplated. After the spiral coated diffusion barrier sealing ply is sealed, an outer casing 840 is applied.

In several embodiments of the invention, the coating and sealing process is repeated prior to encapsulation to provide one or more additional layers of diffusion barrier encapsulation laminate (not shown). The additional coating and sealing can be applied in a continuous line for application. Alternatively, the additional covering and sealing can be sequentially performed by, for example, wrapping the tubular member with a wrap, and then sequentially feeding the previously coated tubular member even if the same machine is coated and sealed. In several embodiments, one or more of the diffusion barrier banding layer additional layers are coated using the same coating method. Alternatively, the diffusion barrier banding layer additional layer can be coated using different methods. In some embodiments, the first layer of the diffusion barrier sealing layer is coated with a clockwise spiral coating process, and the additional layer of the diffusion barrier sealing layer can be coated with a counterclockwise or clockwise coating process. At the same time, in some embodiments, the seams formed by the additional layers are placed at different axial positions of the inner tubular members.

The present invention is described in terms of specific embodiments of the invention in order to facilitate the understanding of the invention. This particular embodiment and details are not intended to limit the scope of the accompanying claims. It will be apparent to those skilled in the art that the embodiments that are selected for the description can be modified without departing from the spirit and scope of the invention. In particular, the skilled artisan will appreciate that the devices and methods of the present invention can be implemented in a number of different ways and have a number of different aspects.

100, 200. . . Polymer pipe fittings

110, 230. . . Water vapor

120, 250. . . Diffusion particle

130, 260, 270. . . Water vapor

140. . . Water vapor density

210. . . Substantial sealing point

220. . . Diffusion barrier

240. . . Diffusion barrier cladding area

300. . . Pipe fittings

310. . . region

320. . . Inner tube layer

330. . . Diffusion barrier sealing layer or layer

340. . . Shell layer

400. . . Single diffusion barrier sealing layer

410. . . Diffusion barrier diaphragm

420. . . Adhesive layer

425. . . Additional layer

430, 440. . . Hot plastic film layer

450. . . Laminate boundary

600, 650, 710, 740, 810. . . Inner pipe fitting

610. . . Wrapper

620, 720, 820. . . Diffusion barrier sealing layer

630. . . Device

640. . . Diffusion barrier sealing layer overlap area

660. . . Heat sealant

680. . . obstructive

690, 750, 840. . . Outer shell

730. . . banner

760. . . Small stump

830. . . Overlapping area

The most recent features of the present invention are described in the appended claims. However, several embodiments of the invention have been described in the following figures.

Figure 1A illustrates the diffusion process that begins at time t = 0 in a plastic tube without an additional diffusion barrier.

Figure 1B illustrates the diffusion process in which the time t = Δt begins to occur in a plastic pipe without an additional diffusion barrier.

Figure 1C illustrates the time t = t _{c r i t i c a l} The diffusion process that begins in a plastic tube without an additional diffusion barrier.

Figure 2A illustrates that time t = 0 begins to occur in a diffusion process with an additional diffusion barrier.

Figure 2B illustrates that time t = Δt begins to occur in the diffusion process with an additional diffusion barrier.

Figure 2C illustrates that the time t = t _{c r i t i c a l} begins to occur in the diffusion process with an additional diffusion barrier.

Figure 3 illustrates the basic configuration of a multilayer tubular member in accordance with several embodiments of the present invention.

Figure 4A illustrates the possible construction of one of the diffusion barrier sealing layers of several embodiments of the present invention.

Figure 4B illustrates another possible construction of a diffusion barrier encapsulation layer in accordance with several embodiments of the present invention.

Figure 5 is a flow diagram of the basic steps in the manufacture of a multilayer tubular member in accordance with several embodiments of the present invention.

Figure 6 illustrates an apparatus for making a multi-layer diffusion barrier seal wrap tube having a protective envelope.

Figure 7A is a perspective view of the flagged tube fitting without the outer envelope before the flag is folded.

Figure 7B is an end view of the flag-clad tube without the outer envelope before the flag is folded.

Figure 7C is a perspective view of the flag-wrapped tube after the flag has been folded and enveloped.

The 7D image is a perspective view of the flagged tube fitting without the outer envelope before the flag is folded.

Figure 7E is an end view of the flag-wrapped tube without the outer envelope before the flag is folded.

Figure 7F is a perspective view of the flag-wrapped tube after the flag is folded and enveloped.

Figure 8 is a spirally wrapped multi-layered tubular member having a protective cladding.

300. . . Pipe fittings

310. . . region

320. . . Inner tube layer

330. . . Diffusion barrier sealing layer or layer

340. . . Shell layer

Claims (50)

A substantially sealed tubular member comprising: an inner tubular member, a diffusion barrier material, and at least two layers of thermoplastic material, wherein a first layer of thermoplastic material is applied to a first side of the diffusion barrier material, and wherein the first a second layer of thermal plastic material is applied to a second side of the diffusion barrier material, the first layer of thermoplastic material, the layer of second thermoplastic material and the diffusion barrier material form a diffusion barrier sealing layer, and Wherein the diffusion barrier sealing layer is coupled to the outer side of the inner tubular member, and wherein the diffusion barrier sealing layer is substantially integral around the inner tubular member, and wherein the first thermoplastic material layer and The second layer of thermoplastic material is sealed together, and wherein the inner tube coupled to the diffusion barrier sealing layer is substantially sealed, wherein the diffusion barrier sealing sheet surrounds the inner tube very completely and provides a diffusion barrier sealing strip parallel to the inner tube length overlapping the strip, and wherein the diffusion barrier sealing strip overlapping strip is coupled below the diffusion barrier sealing layer and around the inner The barrier member is sealed with a sealing lamina. The substantially sealed pipe member of claim 1, wherein the inner pipe member is selected from the group consisting of polyolefins; modified polyolefin; fluoroplastic; polyamine; polyester; vinyl resin; Thermoplastic elastomer based on olefin, polyester, styrene and vinyl chemical elements; elastomer such as butyl; polyisobutylene (PIB); EPDM; NBR; SBR and platinum processing or The oxide is processed from a group of materials of a resin rubber. The substantially sealed tubular member of claim 1, wherein the diffusion barrier material is an aluminum foil. The substantially sealed tubular member of claim 1, wherein the diffusion barrier material is polyamine. The substantially sealed tubular member of claim 1, wherein each of the layers of thermoplastic material is configured to provide a strong seal with the inner tubular member when it is in contact with the inner tubular member and is treated with heat and pressure. The substantially sealed tubular member of claim 1, wherein the diffusion barrier sealing laminate is not sealed to the inner tubular member, wherein the inner tubular member is slidable within the diffusion barrier sealing laminate. The substantially sealed tubular member of claim 1, wherein the plurality of layers of the diffusion barrier material are layered between the at least two thermoplastic layers. A substantially sealed tubular member of claim 1, wherein an adhesive is used to bond a layer of thermoplastic material to a layer of diffusion barrier material. The substantially sealed tubular member of claim 1, wherein the first layer of thermoplastic material and the second layer of thermoplastic material directly protrude from the diffusion barrier material using a protrusion treatment. The substantially sealed tube member of claim 1, wherein the first layer of thermoplastic material and the layer of the second layer of thermoplastic material directly adhere to the diffusion barrier material by using a layer of a sheet. The substantially sealed tubular member of claim 1, wherein the first layer of thermoplastic material and the second layer of thermoplastic material are bonded to the diffusion barrier material using a calendering process. The substantially sealed tubular member of claim 1, wherein the coupling is The thermoplastic layer of the diffusion barrier sealing laminate is a low density polyethylene. The substantially sealed tubular member of claim 1, wherein an overlapping ratio of the diffusion barrier sealing strip overlapping strips parallel to the length of the inner tubular member is about 10% to about 10% around the inner tubular member twenty five. The substantially sealed tubular member of claim 1, further comprising a cladding layer, wherein the cladding layer covers the diffusion barrier sealing laminate. The substantially sealed tubular member of claim 14, wherein the cladding layer is a polymer. The substantially sealed tubular member of claim 14, wherein the cladding layer is applied using a protrusion treatment. The substantially sealed tubular member of claim 14, wherein the cladding layer is applied using a heat shrinking treatment. The substantially sealed tubular member of claim 14, wherein the cladding has a thickness ranging from 0.5 micrometers to fifteen micrometers. A method for manufacturing a substantially sealed tubular member that is implemented as a one-line and continuous treatment, comprising the steps of: providing a diffusion barrier material; applying a first layer of thermoplastic material to one side of the diffusion barrier material; applying a second thermoplastic a material layer to the other side of the diffusion barrier material; feeding a diffusion barrier sealing laminate to a first cladding device, feeding an inner tubular member to the first cladding device, and the diffusion barrier sealing layer Coating the inner tubular member, wherein an overlapping diffusion barrier sealing layer seam is formed, and the inner tubular member covered by the diffusion barrier sealing layer is fed to a first sealing device And sealing the overlapping diffusion barrier sealing layer plate seam. The method of claim 19, wherein the inner tubular member is protruded through a tubular member upstream of the first cladding device and formed prior to feeding the inner tubular member to the first cladding device. The method of claim 19, wherein the diffusion barrier sealing layer is formed upstream of the first cladding device and prior to feeding the diffusion barrier sealing laminate to the first cladding device. The method of claim 19, wherein an adhesive bonding layer is used to join the first thermoplastic material layer and the second thermoplastic material layer to the diffusion barrier material. The method of claim 19, wherein each of the thermoplastic layers is protruded from the diffusion barrier material using a pressure protrusion treatment. The method of claim 19, wherein the thermoplastic is a low density polyethylene. The method of claim 19, wherein the diffusion barrier material is an aluminum foil. The method of claim 19, wherein the diffusion barrier material is polyamine. The method of claim 19, wherein the plurality of layers of the diffusion barrier material are layered between the layers of the thermoplastic layer. The method of claim 19, the sealing comprising: guiding the inner tubular member covered by the diffusion barrier sealing layer to a pair of rollers, wherein at least one roller is heated, wherein the heated roller is configured to provide heat And the inner tube member coated with the pressure to the incoming diffusion barrier sealing strip. The method of claim 19, wherein the diffusion barrier sealing layer plate guided to the wrapper is wider than the inner tubular member, wherein the wrapper device wraps around the inner tubular member Diffusion barrier encapsulation such that a diffusion barrier enveloping laminate sheet parallel to the length of the inner tubular member overlaps the strip to form the diffusion barrier enveloping laminate seam. The method of claim 29, wherein the diffusion barrier material strip is at least one micron. The method of claim 19, wherein the diffusion barrier sealing layer plate guided to the wrapper device is wider than the inner tubular member, wherein the wrapper device is wrapped around the inner tubular member The diffusion barrier encapsulation is such that an extent of the diffusion barrier enveloping laminate that is beyond the width of the inner tubular member is satisfied and extends vertically therefrom to form a vertical extension from the point on the inner tubular member and substantially parallel to each other a flag, wherein the flag forms a seam of the diffusion barrier seal layer. The method of claim 31, wherein the sealed vertically extending flag is folded back down to a side around the inner tubular member. The method of claim 32, wherein the length of the flag folded back down to the inner tubular member is between 1 micrometer and 20 micrometers. The method of claim 32, wherein the sealed vertical extension banner is cut into an in-line portion and continuously processed. The method of claim 19, wherein the applicator device coats the inner tube member around the inner tube with the diffusion barrier sealing layer in a spiral manner, wherein the diffusion barrier sealing layer sheet Winding down inside The length of the tubular members themselves partially overlaps, wherein the overlapping regions form the diffusion barrier seal layer plate seam. The method of claim 35, wherein the overlap percentage of the overlap region ranges from about ten percent to about fifty percent of the width of the diffusion barrier seal laminate. The method of claim 19, wherein the first sealer device seals the diffusion barrier seal laminate overlap by applying heat and pressure to the diffusion barrier seal laminate overlap. The method of claim 19, further comprising the step of: guiding at least one additional diffusion barrier sealing strip layer to at least one additional wrapper device, wherein each wrapper device is followed by an additional sealer device; The first applicator device guides the inner tubular member covered by the diffusion barrier sealing layer at least once and at least once by the first sealing device to the at least one additional covering device; The diffusion barrier sealing strip layer covers the at least one coated and sealed inner tubular member, wherein at least two coated inner tubular members and at least one additional diffusion barrier sealing seam are formed; guiding the at least two packages Covering the inner tubular member to the at least one additional seal; and sealing the at least one additional diffusion barrier sealing seam. The method of claim 38, wherein the steps are performed in a one-line and continuous manner. The method of claim 19, further comprising: guiding the inner tubular member covered and sealed by the diffusion barrier sealing layer to a cladding device; The inner tubular member is coated and sealed by the diffusion barrier sealing layer, wherein the cladding occurs in the line and in the final step of continuous processing. The method of claim 40, wherein the cladding is completed by a pressure protrusion process. The method of claim 40, wherein the cladding is completed by a half pressure protrusion process. The method of claim 40, wherein the inner tube member and the diffusion barrier layer are further joined together by heat application during the encapsulation, wherein the thermal plastic exposure side of the diffusion barrier layer is Encased and joined together. The method of claim 19, further comprising: guiding the inner tubular member covered and sealed by the diffusion barrier sealing layer to a cladding device; and encapsulating and diffusing the diffusion barrier sealing layer The inner tube member, wherein the cladding is completed by a heat shrinkage treatment of a segment. A substantially sealed tubular member comprising: an inner tubular member, and a diffusion barrier sealing strip substantially substantially sealingly coupled to the outer side of the inner tubular member substantially the entire length of the inner tubular member, comprising: a diffusion barrier material; a first thermoplastic a layer of material is applied to a first side of the diffusion barrier material; a second layer of thermoplastic material is applied to a second side of the diffusion barrier material; and the first layer of thermoplastic material and the second thermoplastic material Layer is dense The seal together; wherein the diffusion barrier sealing laminate is not sealed to the inner tubular member, wherein the inner tubular member is slidable within the diffusion barrier sealing laminate. A substantially sealed tubular member comprising: an inner tubular member, and a diffusion barrier sealing strip substantially substantially sealingly coupled to the outer side of the inner tubular member substantially the entire length of the inner tubular member, comprising: a diffusion barrier material; a first thermoplastic a layer of material is applied to a first side of the diffusion barrier material; a second layer of thermoplastic material is applied to a second side of the diffusion barrier material; and the first layer of thermoplastic material and the second thermoplastic material The layers are sealed together; wherein the thermoplastic layers coupled to the diffusion barrier sealing ply are low density polyethylene. A substantially sealed tubular member comprising: an inner tubular member, and a diffusion barrier sealing strip substantially substantially sealingly coupled to the outer side of the inner tubular member substantially the entire length of the inner tubular member, comprising: a diffusion barrier material; a first thermoplastic a layer of material is applied to a first side of the diffusion barrier material; a second layer of thermoplastic material is applied to the diffusion barrier material a second side; and the first layer of thermoplastic material and the second layer of thermoplastic material are sealed together; wherein the diffusion barrier sealing layer is wider than the circumference of the inner tube, wherein the diffusion barrier seals the laminate An excess width is satisfied at one point of the inner tubular member and thereby extends vertically to create two vertically extending flags, one of which is present between the vertically extending flags. The substantially sealed tubular member of claim 47, wherein the sealed vertically extending flag is folded back down to a side around the inner tubular member. The substantially sealed tubular member of claim 48, wherein the flag has a length ranging between 1 micrometer and 20 micrometers. A substantially sealed tubular member comprising: an inner tubular member, and a diffusion barrier sealing strip substantially substantially sealingly coupled to the outer side of the inner tubular member substantially the entire length of the inner tubular member, comprising: a diffusion barrier material; a first thermoplastic a layer of material is applied to a first side of the diffusion barrier material; a second layer of thermoplastic material is applied to a second side of the diffusion barrier material; and the first layer of thermoplastic material and the second thermoplastic material The layer is sealed together; wherein the diffusion barrier sealing layer is wound around the inner tubular member in a spiral manner, wherein the diffusion barrier sealing tape is wound downwardly around the length of the inner tubular member Partially overlapping and configured with an overlapping region, wherein the overlapping barrier sealing layer seals the barrier sealing laminate around the inner tubular member, and wherein an additional layer of the diffusion barrier sealing laminate is wrapped around the coating The inner tube is wound in the opposite direction.