WO1992013704A1 - Procede et dispositif de realisation d'un joint porteur au moyen d'un materiau en plastique cellulaire comprime dilate par rechauffement - Google Patents

Procede et dispositif de realisation d'un joint porteur au moyen d'un materiau en plastique cellulaire comprime dilate par rechauffement Download PDF

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Publication number
WO1992013704A1
WO1992013704A1 PCT/SE1992/000076 SE9200076W WO9213704A1 WO 1992013704 A1 WO1992013704 A1 WO 1992013704A1 SE 9200076 W SE9200076 W SE 9200076W WO 9213704 A1 WO9213704 A1 WO 9213704A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
filler material
joint
hot melt
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SE1992/000076
Other languages
English (en)
Inventor
Anders LÖNNÖ
Sven Grip
Åke DOLK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4505110A priority Critical patent/JPH06505285A/ja
Publication of WO1992013704A1 publication Critical patent/WO1992013704A1/fr
Priority to NO932817A priority patent/NO932817D0/no
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6812—Compressable seals of solid form
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B29C65/68—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using auxiliary shrinkable elements
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/484—Moisture curing adhesives
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/485—Multi-component adhesives, i.e. chemically curing as a result of the mixing of said multi-components
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Definitions

  • the present invention is a method for forming load-bearing joints through the use of compresse cellular plastic material having a stable form at room temperature, and which, after insertion int the joint area, is made to expand through heating so that the whole of the joint area is fille
  • Bonding between the filler material and the base material can be secured by applying a one o two-component adhesive.
  • bonding can be secured by means of a hot melt adhesiv or a hot melt adhesive with setting agent which, during the expansion phase of the plastic fillin material, melts under elevated temperature, and thereby a bond is formed between the fille material and the base material.
  • the components making up the joint are dry when bein handled.
  • the method is applicable for the load-bearing joining of core material in sandwic constructions, but it is also applicable for joining concrete panels, wall panels, window panel etc. in building constructions.
  • mos of the methods are based on a chemical process, e.g. foaming or vulcanization.
  • the presen method is based instead on storing energy in the form of compressed gas at room temperature which energy is then released at elevated temperature (the heat distortion temperature of th plastic filler material).
  • U.S. Patent 4,647,716 describes a method that is similar to the present method. However even in this case the purpose is to seal.
  • Cellular plastic material is used as core material in sandwich constructions. Ships and boats, fo example, are often constructed in accordance with this principle.
  • the core material is fixed t a wooden construction formed in the shape of the boat.
  • Fiber-reinforced plastic is then applied to both the inside and the outside of the core material.
  • the core material used in this type o sandwich construction is in the form of boards of various sizes. When the boards are fitted together, gaps are left between them. In order to obtain a continuous interaction of forces in the sandwich construction, these gaps are filled with a material that joins the edges of the boards together.
  • Cellular plastic material usually has a density of between 0.045 to 0.25 kg dm* ** .
  • Using a putty compound increases the weight of the construction, which is not desirable, and results in discontinuities in the core material which may have a negative affect on the strength of the sandwich construction in cases e.g. of impact or when the structure is overloaded.
  • Other negative affects are the occurrence of thermal bridges and acoustic transmission.
  • the joints are filled by injecting the putty compound. This method has been shown to result in incompletely filled joints, which also weakens the sandwich construction.
  • the filler material is first prepared by pressing together strips (2) of cellular plastic material under elevated temperature, see fig. 2, so that their thickness is reduced to the thickness required by the method, e.g. 30% of their original thickness, see fig. 3. By allowing the compressed strips to cool before the pressure is removed, the strips will retain their reduced thickness even after the pressure has been removed.
  • a film of moisture-cured hot melt adhesive (4) is applied to the filler material, either during compression or afterwards.
  • the filler material with adhesive coating is inserted into the joint area (1), see fig. 4. By heating the strips of filler material to approx. 7fC, the filler material softens and expands because of internal excess pressure, until the joint area is filled.
  • the adhesive melts, and because the filler material expands, it presses the adhesive against the base material so that a bond is formed between the filler material and the base material (5), see fig. 5.
  • the filler material hardens and regains its original properties. With the hardening of the filler material, further expansion is prevented, which ensures that the joint remains stable.
  • the adhesive is cured through the humidity of the air.
  • the filler material must meet set strength requirements.
  • the adhesive must meet set strength requirements.
  • the bond between the filler material and the base material must meet the same requirements as are set on the components which make up the joint, i.e. the filler material, the hot melt adhesive, and the base material.
  • the filler material In order for the last requirement to be met, the filler material must fill the joint ar completely, i.e. the filler material must expand evenly and completely along the whole of t joint.
  • the hot melt adhesive must melt completely during the time that the filler mater is exerting the necessary pressure on the adhesive. This means that the heat must be applied such way that the above requirements can be met.
  • the present invention offers a solution to t problem of forming an essentially load-bearing joint in e.g. sandwich constructions.
  • the present invention offers a method which allows bonding at relatively l temperatures, e.g. at 60°C, and where the filler material, when expanded, regains its origi form.
  • relatively l temperatures e.g. at 60°C
  • the filler material when expanded, regains its origi form.
  • the size of the filler strips can be predetermined. Expansion through chemi foaming, on the other hand, is always uncontrolled.
  • rigid cellular plastic material with closed cells is used. This a prerequisite for expansion to occur as well as for ensuring sufficient rigidity and strength the finished joint.
  • Strips of filler material are sawn, or by some other means cut o from the base material, e.g. PVC cellular plastic.
  • the strips of filler material before compression, should be somewhat thicker than t joint area they are to be inserted into. The thicker are the strips of filler material, the greater w be the pressure on the adhesive when the filler material expands during the heating stage. B if the filler material is to regain maximum strength, the filler material must expand as complete as possible, so that the cells in the material will have maximum spherical form and thus give t desired strength.
  • the filler material is then placed in a heating unit that has been heated to approx. 8CP After heating, the filler material is then placed in a press where it is compressed to approx. 20 50% of its original thickness. During this operation, the filler material can be coated with a fil of hot melt adhesive which, because of the pressure and the heat from the filler material, wi adhere to the filler material in the designed manner. If the film of hot melt adhesive is prepare a few minutes before it is applied (just before the press stage), some hot melt adhesives will sti adhere to the filler material even after they have stiffened.
  • the hot melt adhesive can also be applied to the filler material at a later stage.
  • T simplest way is to fold the adhesive film around the strip of filler material before it is inserte into the joint area.
  • the adhesive film may even consist of two separate layers applied one to eac side of the' filler material.
  • the compressed strips of filler material are inserted into the joint area and are heated by mean of electromagnetic radiation, e.g. microwaves.
  • the hot melt adhesive consisting e.g. polyurethane, is affected by the elecromagnetic field and thus becomes heated.
  • the filler materi is indirectly heated when the adhesive is heated. Since the electromagnetic field is formed in suc a way that it is homogeneous in the area of the joint, an immediate and uniform heating of th hot melt adhesive takes place. The indirect heating of the filler material is, thereby, also unifor Expansion is uniform and an evenly distributed pressure on the adhesive is obtained.
  • the finishing stage of the process is limited to removing excess hot melt adhesive whic has been pressed out during the expansion stage. What remains, after the hardening process i complete, is a well-filled, load-bearing joint.
  • Other cellular plastics than PVC can be used as filler material, or as core material, e.g cellular plastic of PUR, PS, etc. Most cellular plastics are little affected by electromagneti radiation, and thus the advantages of the heating procedure are retained, i.e. unnecessary heatin of the base material is avoided. Note also that although polyurethane in the form of hot mel adhesive becomes heated very quickly, a cellular plastic of the same material becomes hardly heated at all by electromagnetic radiation during the same period of time.
  • heat can be applied by means of a hot air device, electric blankets, etc.
  • care must be taken to regulate the temperature so that the material of which the construction is comprised will not be damaged. This is particularly important in large constructions where the heat is to be applied for relatively long periods of time, e.g. for a few hours at a time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Building Environments (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention se rapporte à un procédé de réalisation de joints porteurs au moyen d'un matériau en plastique cellulaire comprimé (3) dont la forme est stable à température ambiante et qui, après introduction dans l'emplacement du joint (1), est amené à dilatation par réchauffement, de façon à remplir la totalité dudit emplacement. L'adhésion entre le matériau de remplissage et le matériau de base peut s'effectuer au moyen d'un adhésif fondu à chaud ou d'un adhésif fondu à chaud comprenant un agent de durcissement (4) qui, pendant la phase de dilatation du matériau de remplissage, fond à température élevée, ce qui constitue l'adhérence entre ledit matériau de remplissage et le matériau de base (5). Dans la mise en application dudit procédé, quand le matériau de remplissage se réchauffe, l'emplacement du joint se remplit, une pression s'exerce sur l'adhésif et l'adhérence du matériau de base s'effectue simultanément. D'après ledit procédé, les constituants du joint sont secs quand on les manipule. Le procédé peut s'appliquer à la constitution de joints porteurs en matériaux à âme dans des constructions en sandwich. Il peut également s'utiliser pour assembler des panneaux en béton ou des panneaux de revêtement mural ou de fenêtres etc... dans la construction.
PCT/SE1992/000076 1991-02-08 1992-02-07 Procede et dispositif de realisation d'un joint porteur au moyen d'un materiau en plastique cellulaire comprime dilate par rechauffement Ceased WO1992013704A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP4505110A JPH06505285A (ja) 1991-02-08 1992-02-07 加熱により膨張するように作られた圧縮された気泡プラスチック材料により耐力接合を形成するための方法及び装置
NO932817A NO932817D0 (no) 1991-02-08 1993-08-06 Fremgangsmaate og anordning for tildanning av en lastbaerende skjoet ved hjelp av sammenpresset skumplastmateriale, som er utvidet ved oppvarming

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9100391A SE9100391D0 (sv) 1991-02-08 1991-02-08 Metod att taeta fogar med ett foerkomprimerat, i vaerme expanderande cellplastmaterial
SE9100391-3 1991-02-08

Publications (1)

Publication Number Publication Date
WO1992013704A1 true WO1992013704A1 (fr) 1992-08-20

Family

ID=20381852

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1992/000076 Ceased WO1992013704A1 (fr) 1991-02-08 1992-02-07 Procede et dispositif de realisation d'un joint porteur au moyen d'un materiau en plastique cellulaire comprime dilate par rechauffement

Country Status (5)

Country Link
EP (1) EP0570468A1 (fr)
JP (1) JPH06505285A (fr)
AU (1) AU1248892A (fr)
SE (1) SE9100391D0 (fr)
WO (1) WO1992013704A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664363A1 (fr) * 1994-01-20 1995-07-26 Rathor Ag Elément de construction
WO1997018361A1 (fr) * 1995-11-15 1997-05-22 The Australian Radial Timber Conversion Company (Radcon) Pty. Ltd. Panneau d'isolation phonique en bois debite sur quartier
EP1033451A3 (fr) * 1999-03-01 2000-09-13 Baumanagement Johannes Tribelhorn Procédé pour l'érection d'une unité de construction, unité de construction et procédé pour la connection de parois
US7482038B1 (en) * 2006-04-25 2009-01-27 Nucedar Mills, Inc. Process for preparing siding

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001164670A (ja) * 2000-12-14 2001-06-19 Minami Yuzo Jimusho:Kk 気密化施工方法及び気密施工用建築部材
JP4693829B2 (ja) * 2007-02-16 2011-06-01 西田製凾株式会社 樹脂板の接合方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1963267A1 (de) * 1968-12-23 1970-07-30 Huber Suhner Ag Kabel Kautschu Verfahren zum Abdichten von Fugen und Dichtung zur Durchfuehrung des Verfahrens
DE1784467A1 (de) * 1967-08-17 1971-11-11 Asbiton Nv Von einem vorkomprimierten Band aus vielzelligem,elastischem Material mit offenen Zellen gebildetes Dichtungselement und Verfahren zu seiner Herstellung
US3806566A (en) * 1969-01-21 1974-04-23 Dow Chemical Co Method of filling enclosed spaces with a foam composite
US4647716A (en) * 1984-11-06 1987-03-03 Sigmaform Corporation Article having heat expandable sealing member
US4898630A (en) * 1987-11-18 1990-02-06 Toyota Jidosha Kabushiki Thermosetting highly foaming sealer and method of using it

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1784467A1 (de) * 1967-08-17 1971-11-11 Asbiton Nv Von einem vorkomprimierten Band aus vielzelligem,elastischem Material mit offenen Zellen gebildetes Dichtungselement und Verfahren zu seiner Herstellung
DE1963267A1 (de) * 1968-12-23 1970-07-30 Huber Suhner Ag Kabel Kautschu Verfahren zum Abdichten von Fugen und Dichtung zur Durchfuehrung des Verfahrens
US3806566A (en) * 1969-01-21 1974-04-23 Dow Chemical Co Method of filling enclosed spaces with a foam composite
US4647716A (en) * 1984-11-06 1987-03-03 Sigmaform Corporation Article having heat expandable sealing member
US4898630A (en) * 1987-11-18 1990-02-06 Toyota Jidosha Kabushiki Thermosetting highly foaming sealer and method of using it

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664363A1 (fr) * 1994-01-20 1995-07-26 Rathor Ag Elément de construction
WO1997018361A1 (fr) * 1995-11-15 1997-05-22 The Australian Radial Timber Conversion Company (Radcon) Pty. Ltd. Panneau d'isolation phonique en bois debite sur quartier
EP1033451A3 (fr) * 1999-03-01 2000-09-13 Baumanagement Johannes Tribelhorn Procédé pour l'érection d'une unité de construction, unité de construction et procédé pour la connection de parois
US7482038B1 (en) * 2006-04-25 2009-01-27 Nucedar Mills, Inc. Process for preparing siding
US7887902B1 (en) 2006-04-25 2011-02-15 Nucedar Mills, Inc. Process for preparing siding

Also Published As

Publication number Publication date
AU1248892A (en) 1992-09-07
JPH06505285A (ja) 1994-06-16
SE9100391D0 (sv) 1991-02-08
EP0570468A1 (fr) 1993-11-24

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