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WO1989006595A1 - Procede de production de conduites composites - Google Patents

Procede de production de conduites composites Download PDF

Info

Publication number
WO1989006595A1
WO1989006595A1 PCT/JP1988/000029 JP8800029W WO8906595A1 WO 1989006595 A1 WO1989006595 A1 WO 1989006595A1 JP 8800029 W JP8800029 W JP 8800029W WO 8906595 A1 WO8906595 A1 WO 8906595A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
inner pipe
outer pipe
lines
foaming adhesive
Prior art date
Application number
PCT/JP1988/000029
Other languages
English (en)
Inventor
Teruo Nishidome
Takao Miyake
Original Assignee
Sekisui Kagaku Kogyo Kabushiki Kaisha
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
Priority claimed from JP61230480A external-priority patent/JPH0688333B2/ja
Application filed by Sekisui Kagaku Kogyo Kabushiki Kaisha filed Critical Sekisui Kagaku Kogyo Kabushiki Kaisha
Priority to PCT/JP1988/000029 priority Critical patent/WO1989006595A1/fr
Publication of WO1989006595A1 publication Critical patent/WO1989006595A1/fr

Links

Classifications

    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1228—Joining preformed parts by the expanding material
    • B29C44/1242—Joining preformed parts by the expanding material the preformed parts being concentric
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
    • 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
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B29L2023/225—Insulated

Definitions

  • This invention relates to a method for the production of composite pipes that have an inner pipe made of synthetic resin and an outer pipe made of metal, for example, steel, etc., the inner surface of which is lined with the inner pipe. More particularly, this invention relates to a' method for the production of composite pipes in which the outer pipe and the inner pipe adhere to each other to make one piece by means of a foamed layer.
  • the following methods are known for the method of manufacturing a composite pipe that consists of a metal outside pipe made of steel, etc., the inner surface of which is lined with an inner pipe made of synthetic resin.
  • a foaming adhesive is applied either' to the inner surface of the outer pipe made of metal, to the outer surface of the inner pipe made of synthetic resin, or to both of these surfaces.
  • the inner pipe is introduced into the outer pipe, and the foaming adhesive is foamed and hardened by the addition of heat.
  • the bubbles of the foaming adhesive which forms a foamed layer between the inner surface of the outer pipe and the outer surface of the inner pipe, a composite pipe that adheres together in one piece is obtained.
  • Each proj ecting line is in contact with the inner surface of the outer pipe, so even when the foaming adhesive in the space between the out er pi pe and the inner p i pe i s f oamed the concentricity of the outer pipe and the inner pipe can be maintained.
  • this inner pipe When the inner pipe is deformed, then this inner pipe is not introduced into the outer pipe so that the pipes are concentric, but rather the inner pipe will be introduced into the outer pipe so that it is bent toward the outer pipe in one direction or a zigzag direction.
  • the lines projecting from the outer surface of the inner pipe come strongly into contact with the inner surface of the outer pipe. If the lines projecting from the outer surface of the inner pipe come into strong contact with the inner surface of the outer pipe, said projecting lines will scrape away the foaming adhesive applied to the inner surface of the outer pipe.
  • the outer pipe made of metal will corrode. If the composite pipe is used for the flow of relatively hot water, softening of the inner pipe made of synthetic resin will occur and the gap between the inner pipe and the outer pipe will expand in volume, and accordingly the inner pipe will expand inward, resulting in the constriction of the space for the passage of flowing water. Thus, if the expansion of the inner pipe is severe, the passage for flowing water will be blocked. The possibility of expansion of the inner pipe inward is particularly high when the temperature difference of the water flowing through it at different times is large. If the inner pipe is made thick, there will not be any deformation of the inner pipe when it is introduced into the outer pipe, and this prevents the occurrence of gaps between the inner pipe and outer pipe. However, a thick inner pipe is not economical.
  • the method for the production of composite pipes of this invention comprises applying a foaming adhesive to the inner surface of an outer pipe, introducing an inner pipe made of synthetic resin into the outer pipe, and heating the foaming adhesive to foam and harden the foaming adhesive, wherein said inner pipe has, on its outer surface, a number of lines projecting from the inner pipe that are parallel with the axis of the pipe, said lines being of fixed length and discontinuous so that said inner pipe can be concentric with the outer pipe when it is introduced into the outer pipe.
  • the length of the projecting lines is about 1-10 mm in the direction of the axis of the pipe, the space between the adjacent projecting lines positioned in a line in the direction of the axis of the pipe is about 10-100 mm, and the space between adjacent projecting lines positioned in a row in the direction of the circumference of the pipe is about 10-30 mm.
  • the invention described herein makes possible the objectives of (1) providing a method for the production of composite pipes in which even when the inner pipe made of synthetic resin has a thin wall, little pressure is applied to the inner pipe when the inner pipe is being introduced into the outer pipe, and there is almost no chance that the inner pipe will, be deformed, and therefore, there is almost no possibility that the lines projecting from the outer surface of the inner pipe will scrape away the adhesive that has been applied to the inner pipe; (2) providing a method for the production of composite pipes in which when the inner pipe is introduced into the outer pipe, even if said inner pipe is twisted, the area of the adhesive that is scraped away from the inside surface of the outer pipe is extremely small, because the projecting lines are not continuous; therefore, even if the amount of adhesive on different parts of the inner surface of the outer pipe is slightly uneven, when the foaming adhesive is foamed and hardened after the inner pipe is introduced into the outer pipe, the gaps between the inner pipe and the outer pipe will be filled with bubbles because of the foaming pressure at the time of foaming; (3)
  • Figure 1 is a side view of an apparatus used to accomplish the method of this invention.
  • Figure 2 is a sectional view of an important part of the apparatus shown in Figure.1
  • Figure 3 is a front view of the inner pipe of this invention.
  • Figure 4 is a side view of the inner pipe
  • Figures 5 and 6, respectively, are side views of different examples of the inner pipes of this invention.
  • Figure 7 is a front view of the composite pipe manufactured by the method of this invention
  • Figure 8 is a side view of one part of that pipe, which has been opened up.
  • the method of this invention is accomplished by the use of the apparatus shown in Figure 1.
  • An outer pipe 11 made of metal is placed on rollers 21 that are provided on a stand 20, and by the rotation of these rollers 21, the said outer pipe 11 is rotated in the direction of its circumference.
  • a spraying pipe 31 is introduced in the axial direction of the said outer pipe 11.
  • One end of the spraying pipe 31 is placed within the outer pipe 11, and the other end extends to the outside of the outer pipe 11.
  • the end of the spraying pipe 31 that extends to the outside of the outer pipe 11 is coupled by means of a coupling device 33 to the upper surface of a belt conveyor 32 that can move back and forth in the direction shown by arrow A in Figure 1.
  • the belt conveyor 32 is built so that it can move in and out of the outer pipe 11 in the direction of its axis. Because the upper surface of belt conveyor 32 can move back and forth in the direction shown by arrow A in Figure 1, the spraying pipe 31 can move back and forth along the outer pipe 11 in the direction of its axis, from one end of the outer pipe 11 to the other.
  • a liquid foaming adhesive 12 flows along the inside of the spraying pipe 31.
  • the foaming adhesive 12 that flows through the spraying pipe 31 is, as shown in Figure 2, sprayed in the direction of the circumference of the outer pipe 11 through a nozzle 31a at the top of the spraying pipe 31 placed inside of the pipe 11.
  • a position-setting device 34 that maintains the nozzle 31a in a position where it is approximately concentric to the outer pipe 11.
  • an inner pipe 13 is placed on a belt conveyor 40 so that it is. lined up with the outer pipe 11 in the direction of its axis. By the movement of the belt conveyor 40 in the direction of the axis of the inner pipe 13, the said pipe 13 is introduced into the outer pipe 11.
  • These projecting lines 13a are provided so that, for example, there are six parallel lines in the direction of the axis of the inner pipe 13, placed so as to divide the outer surface of said inner pipe 13 in the direction of its circumference into six equal parts, and they are of a fixed length in the direction of the axis of the pipe, and are not continuous. In cross-section, these lines 13a are in the shape of a triangle.
  • the amount of the projecting lines 13a that projects from the outer surface of the inner pipe 13 is set so as to be approximately equal to the space that is between the inner surface of the outer pipe 11 and the outer surface of the inner pipe 13 when the inner pipe 13 is placed into the outer pipe 11 so that they are concentric.
  • the length of the projecting lines 13a in the direction of the axis of the pipe 13 should be as short as possible provided that it is possible for them to keep the inner and outer pipes concentric. This length depends on such factors as the thickness of the walls of the inner pipe 13, etc., but it is around 1-10 mm, and preferably 1-5 mm.
  • the space between the adjacent projecting lines 13a positioned in a line in the direction of the axis of the pipe should be as long as possible provided that it is possible for them to keep the inner and outer pipes concentric when the inner pipe 13 is introduced into outer pipe 11. This length depends on such factors as the thickness of the walls of inner pipe 13, etc., but it is around 10-100 ram, and preferably around 30-70 mm.
  • the projecting lines 13a should be formed so that they are parallel with the axis of the inner pipe 13, on its outer surface, and so that they are discontinuously positioned in a plurality of lines. In this case, it is not necessary that lines in which the projecting lines 13a are positioned on the outer surface of the inner pipe be equally spaced in the direction of the circumference of the pipe. This space should be as wide as possible so long as the inner pipe 13 and outer pipe 11 are maintained so as to be concentric; in practice, this space is set to be about 10-30 mm.
  • the projecting lines 13a need not be in rows around the circumference of the pipe, but may be offset from each other in the direction such as that shown in
  • the projecting lines 13a may be positioned in a spiral pattern.
  • An inner pipe 13 with this kind of projecting lines 13a is manufactured as follows;
  • An inner pipe 13 is, first, manufactured by an extrusion molding technique from vinyl chloride, polyethylene, or other synthetic resins so that the outer surface of the inner pipe 13 has a number of such projecting lines that are continuous and that are parallel with the long axis of the pipe; then, the parts of the continuous lines that are not needed are removed by cutting working, etc.
  • the method of this invention with the use of this kind of the inner pipe 13 can be practiced as follows: First, an outer pipe 11 is placed on the rollers 21 on the stand 20. Next, the spraying pipe 31 is driven by the belt conveyor 32 so as to be introduced into the outer pipe 11 on the rollers 21. Then, the nozzle 31a of the spraying pipe 31 is placed inside of one end of the outer pipe 11. While the rollers 21 are being rotated so as to rotate the outer pipe 11 around the axis of the pipe 11, the foaming adhesive 12 is sprayed from the nozzle 31a.
  • the foaming adhesive 12 is composed of resins such as urethane resins, epoxy resins, polyester resins, etc., and, as a foaming agent, hydrocarbons such as freon, hexane, heptane, etc., or water. While foaming adhesive 12 is being sprayed from the nozzle 31a of the spraying pipe 31, it is moved in the direction of the axis of the outer pipe 11 by means of the belt conveyor 32. In this way, the inner surface of the outer pipe 11 is coated with the foaming adhesive 12 from one end of the pipe to the other. At this time, the outer pips 11 is being rotated, so there is no danger that the foaming adhesive 12 being applied to the inner surface of the outer pipe will drip.
  • resins such as urethane resins, epoxy resins, polyester resins, etc.
  • hydrocarbons such as freon, hexane, heptane, etc.
  • the inner pipe 13 made of synthetic resin that is placed on the belt conveyor 40 is driven by the belt conveyor 40 so as to be introduced into the outer pipe 11.
  • the inner pipe 13 made of synthetic resin that is placed on the belt conveyor 40 is driven by the belt conveyor 40 so as to be introduced into the outer pipe 11.
  • the amount of the foaming adhesive 12 that has been applied to the inner surface of the outer pipe 11 scraped off by the projecting lines 13a is small, and there is no chance of the maldistribution of foaming adhesive 12 on the inside surface of the outer pipe 11.
  • the amount of foaming adhesive 12 that is needed for the application to the inner surface of the outer pipe 11 so that by its foaming, the foaming layer 14 will cause sufficient adhesion of the inner. pipe 13 to the outer pipe 11.
  • the amount varies depending on the volume of the space between the inner pipe 13 and the outer pipe 11, and also on the foaming ratio of the adhesive, but it is preferable that the amount of foaming adhesive to be used be twice or more than the volume between the outer pipe 11 and the inner pipe 13 when the foaming adhesive 12 is allowed to form bubbles freely.
  • the foaming adhesive 12 can be also coated on the outer surface of the inner pipe 13 in addition to the application of the foaming adhesive 12 to the inner surface of the outer pipe 11.
  • outer pipe a steel pipe with the outer diameter of 110 mm, the inner diameter of 106 mm, and the length of 5 m was used; as the inner pipe, a hard vinyl chloride pipe with an outer diameter of
  • semi-hard urethane resin liquid As the foaming adhesive, semi-hard urethane resin liquid was used. The ingredients of this liquid were in the following proportions, by weight.
  • Triethylenediamine 0,6 Silicone as an agent for regulation of foaming 2.0
  • Pigment (special polyester resin containing 25% carbon black by weight) 2.0
  • This foaming liquid was coated over the inner surface of the outer pipe made of metal to a thickness of about 0.35 mm.
  • the application was done by the use of the apparatus described above in which the adhesive was sprayed from the spraying pipe 31.
  • the inner pipe made of synthetic resin that had non-continuous projections was immediately introduced into the outer pipe 11. At this time, resistance to the introduction of the inner pipe was low, and introduction into the outer pipe was smooth, without the inner pipe zigzagging or becoming twisted.
  • the inner pipe had been inserted, it and the outer pipe were concentric, and the space between the two pipes was uniform in the direction of the radiuses of the pipes.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

Procédé de production de conduites composites formées d'une conduite interne en résine synthétique et d'une conduite externe en métal, la surface interne de cette conduite étant revêtue avec la conduite interne. Ce procédé consiste à appliquer un adhésif moussant sur la surface interne d'une conduite externe, à introduire une conduite interne en résine synthétique dans la conduite externe, et à chauffer l'adhésif moussant afin de le faire mousser et durcir. La conduite interne présente, sur sa surface externe, un certain nombre de lignes en saillie et parallèles à l'axe de la conduite, ces lignes possédant une longueur fixe et étant discontinues, de manière à permettre le positionnement concentrique de la conduite interne par rapport à la conduite externe lors de l'introduction de la première dans la deuxième.
PCT/JP1988/000029 1986-09-29 1988-01-14 Procede de production de conduites composites WO1989006595A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1988/000029 WO1989006595A1 (fr) 1986-09-29 1988-01-14 Procede de production de conduites composites

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61230480A JPH0688333B2 (ja) 1986-09-29 1986-09-29 複合管の製造方法
PCT/JP1988/000029 WO1989006595A1 (fr) 1986-09-29 1988-01-14 Procede de production de conduites composites

Publications (1)

Publication Number Publication Date
WO1989006595A1 true WO1989006595A1 (fr) 1989-07-27

Family

ID=26429222

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1988/000029 WO1989006595A1 (fr) 1986-09-29 1988-01-14 Procede de production de conduites composites

Country Status (1)

Country Link
WO (1) WO1989006595A1 (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758965A1 (fr) * 1994-05-19 1997-02-26 Novamex Technologies Holdings, Inc. Poutre stratifiee composite pour carrosseries d'automobile
US5992923A (en) * 1998-05-27 1999-11-30 Henkel Corporation Reinforced beam assembly
US6068424A (en) * 1998-02-04 2000-05-30 Henkel Corporation Three dimensional composite joint reinforcement for an automotive vehicle
US6096403A (en) * 1997-07-21 2000-08-01 Henkel Corporation Reinforced structural members
US6165588A (en) * 1998-09-02 2000-12-26 Henkel Corporation Reinforcement of hollow sections using extrusions and a polymer binding layer
US6233826B1 (en) 1997-07-21 2001-05-22 Henkel Corp Method for reinforcing structural members
US6237304B1 (en) 1997-07-18 2001-05-29 Henkel Corporation Laminate structural bulkhead
WO2001041950A2 (fr) * 1999-12-10 2001-06-14 L & L Products, Inc. Element hydroform renforce par mousse structurale thermoactivee
US6263635B1 (en) 1999-12-10 2001-07-24 L&L Products, Inc. Tube reinforcement having displaceable modular components
US6406078B1 (en) 1994-05-19 2002-06-18 Henkel Corporation Composite laminate automotive structures
US6451231B1 (en) 1997-08-21 2002-09-17 Henkel Corporation Method of forming a high performance structural foam for stiffening parts
US6641208B2 (en) * 2000-03-14 2003-11-04 L&L Products, Inc. Heat activated reinforcing sleeve
US6880657B2 (en) 2001-09-05 2005-04-19 L&L Products Inc. Adjustable reinforced structural assembly and method of use therefor
US6905745B2 (en) 2001-03-20 2005-06-14 L & L Products Inc. Structural foam
WO2005058573A1 (fr) * 2003-12-18 2005-06-30 Socotherm S.P.A. Procede pour fabriquer des tuyaux calorifuges pour le transport de fluides chauds ou froids
US6941719B2 (en) 2001-05-08 2005-09-13 L&L Products, Inc. Structural reinforcement
US7043815B2 (en) 2002-01-25 2006-05-16 L & L Products, Inc. Method for applying flowable materials
US7180027B2 (en) 2004-03-31 2007-02-20 L & L Products, Inc. Method of applying activatable material to a member
US7381454B1 (en) * 1995-06-26 2008-06-03 Uponor B.V. Tubular product
EP2042288A1 (fr) * 2007-09-26 2009-04-01 REHAU AG + Co Corps composite et son procédé de fabrication
US8334055B2 (en) 2004-02-02 2012-12-18 Zephyros, Inc Composite materials
US9987785B2 (en) 2012-04-26 2018-06-05 Zephyros, Inc. Applying flowable materials to synthetic substrates
EP3699469A1 (fr) * 2019-02-20 2020-08-26 Delavan, Inc. Système de conduits coaxiaux et technique de fabrication du même

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1083185A (en) * 1963-08-30 1967-09-13 Meier Schenk Arthur Improvements in or relating to thermally insulated pipes and methods for the manufacture thereof
DE1265517B (de) * 1965-09-20 1968-04-04 Eternit Ag Verfahren zur Herstellung eines Verbundmantelrohres mit einer Waermeisolierung
FR2479945A1 (fr) * 1980-04-03 1981-10-09 Brangues Chaudronnerie Tuyaute Procede pour le calorifugeage des conduits, et conduits obtenus
DE3315819A1 (de) * 1983-04-30 1984-10-31 Ludwig Freytag GmbH & Co KG, 2900 Oldenburg Rohrleitung (pipeline) zur foerderung von insbesondere aggresiven medien und verfahren zum zusammensetzen bzw. verlegen der rohrleitung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1083185A (en) * 1963-08-30 1967-09-13 Meier Schenk Arthur Improvements in or relating to thermally insulated pipes and methods for the manufacture thereof
DE1265517B (de) * 1965-09-20 1968-04-04 Eternit Ag Verfahren zur Herstellung eines Verbundmantelrohres mit einer Waermeisolierung
FR2479945A1 (fr) * 1980-04-03 1981-10-09 Brangues Chaudronnerie Tuyaute Procede pour le calorifugeage des conduits, et conduits obtenus
DE3315819A1 (de) * 1983-04-30 1984-10-31 Ludwig Freytag GmbH & Co KG, 2900 Oldenburg Rohrleitung (pipeline) zur foerderung von insbesondere aggresiven medien und verfahren zum zusammensetzen bzw. verlegen der rohrleitung

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1153824A2 (fr) * 1994-05-19 2001-11-14 Henkel KGaA Poutre composite pour structure de véhicule
EP0758965A4 (fr) * 1994-05-19 1997-09-03 Novamex Technologies Holdings Poutre stratifiee composite pour carrosseries d'automobile
EP0758965A1 (fr) * 1994-05-19 1997-02-26 Novamex Technologies Holdings, Inc. Poutre stratifiee composite pour carrosseries d'automobile
US6406078B1 (en) 1994-05-19 2002-06-18 Henkel Corporation Composite laminate automotive structures
EP1153824A3 (fr) * 1994-05-19 2002-04-17 Henkel KGaA Poutre composite pour structure de véhicule
US6455126B1 (en) 1995-05-23 2002-09-24 Henkel Corporation Reinforcement of hollow sections using extrusions and a polymer binding layer
US7381454B1 (en) * 1995-06-26 2008-06-03 Uponor B.V. Tubular product
US6237304B1 (en) 1997-07-18 2001-05-29 Henkel Corporation Laminate structural bulkhead
US6233826B1 (en) 1997-07-21 2001-05-22 Henkel Corp Method for reinforcing structural members
US6096403A (en) * 1997-07-21 2000-08-01 Henkel Corporation Reinforced structural members
US6451231B1 (en) 1997-08-21 2002-09-17 Henkel Corporation Method of forming a high performance structural foam for stiffening parts
US6068424A (en) * 1998-02-04 2000-05-30 Henkel Corporation Three dimensional composite joint reinforcement for an automotive vehicle
US5992923A (en) * 1998-05-27 1999-11-30 Henkel Corporation Reinforced beam assembly
US6165588A (en) * 1998-09-02 2000-12-26 Henkel Corporation Reinforcement of hollow sections using extrusions and a polymer binding layer
US6263635B1 (en) 1999-12-10 2001-07-24 L&L Products, Inc. Tube reinforcement having displaceable modular components
WO2001041950A3 (fr) * 1999-12-10 2002-02-07 L & L Products Inc Element hydroform renforce par mousse structurale thermoactivee
WO2001041950A2 (fr) * 1999-12-10 2001-06-14 L & L Products, Inc. Element hydroform renforce par mousse structurale thermoactivee
US7194804B2 (en) 1999-12-10 2007-03-27 L & L Products, Inc. Method of forming a hydroform
US6928736B2 (en) 2000-03-14 2005-08-16 L & L Products Method of reinforcing an automobile structure
US6641208B2 (en) * 2000-03-14 2003-11-04 L&L Products, Inc. Heat activated reinforcing sleeve
US6905745B2 (en) 2001-03-20 2005-06-14 L & L Products Inc. Structural foam
US6941719B2 (en) 2001-05-08 2005-09-13 L&L Products, Inc. Structural reinforcement
US6880657B2 (en) 2001-09-05 2005-04-19 L&L Products Inc. Adjustable reinforced structural assembly and method of use therefor
US7043815B2 (en) 2002-01-25 2006-05-16 L & L Products, Inc. Method for applying flowable materials
US7467452B2 (en) 2002-01-25 2008-12-23 Zephyros, Inc. Method for applying flowable materials
WO2005058573A1 (fr) * 2003-12-18 2005-06-30 Socotherm S.P.A. Procede pour fabriquer des tuyaux calorifuges pour le transport de fluides chauds ou froids
US11046042B2 (en) 2004-02-02 2021-06-29 Zephyros, Inc. Composite materials
US8334055B2 (en) 2004-02-02 2012-12-18 Zephyros, Inc Composite materials
US9186864B2 (en) 2004-02-02 2015-11-17 Zephyros, Inc. Composite materials
US11618239B2 (en) 2004-02-02 2023-04-04 Zephyros, Inc. Composite materials
US10035326B2 (en) 2004-02-02 2018-07-31 Zephyros, Inc. Composite materials
US10688752B2 (en) 2004-02-02 2020-06-23 Zephyros, Inc. Composite materials
US7180027B2 (en) 2004-03-31 2007-02-20 L & L Products, Inc. Method of applying activatable material to a member
EP2042288A1 (fr) * 2007-09-26 2009-04-01 REHAU AG + Co Corps composite et son procédé de fabrication
US9987785B2 (en) 2012-04-26 2018-06-05 Zephyros, Inc. Applying flowable materials to synthetic substrates
EP3699469A1 (fr) * 2019-02-20 2020-08-26 Delavan, Inc. Système de conduits coaxiaux et technique de fabrication du même

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