WO2009141501A1 - Procédé et appareil pour fabriquer un panneau de bois - Google Patents

Procédé et appareil pour fabriquer un panneau de bois Download PDF

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Publication number
WO2009141501A1
WO2009141501A1 PCT/FI2009/050415 FI2009050415W WO2009141501A1 WO 2009141501 A1 WO2009141501 A1 WO 2009141501A1 FI 2009050415 W FI2009050415 W FI 2009050415W WO 2009141501 A1 WO2009141501 A1 WO 2009141501A1
Authority
WO
WIPO (PCT)
Prior art keywords
glue
air
wood board
spray application
foam
Prior art date
Application number
PCT/FI2009/050415
Other languages
English (en)
Inventor
Olavi Mikkola
Esa Lappalainen
Hannu Jakorinne
Original Assignee
Upm-Kymmene Wood Oy
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 Upm-Kymmene Wood Oy filed Critical Upm-Kymmene Wood Oy
Publication of WO2009141501A1 publication Critical patent/WO2009141501A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1481—Spray pistols or apparatus for discharging particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • B27G11/005—Glue guns, glue sprayers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/047—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B32B5/20—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material foamed in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/08—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers using foamed adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/08—Coating on the layer surface on wood layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0285—Condensation resins of aldehydes, e.g. with phenols, ureas, melamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/30—Presence of wood
    • C09J2400/303—Presence of wood in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2461/00—Presence of condensation polymers of aldehydes or ketones

Definitions

  • the invention relates to a method for manu- facturing a wood board as defined in the preamble of claim 1 and to an apparatus for applying glue in conjunction with the manufacture of a wood board as defined in the preamble of claim 11.
  • gluing methods for gluing the veneers in wood boards together.
  • the known gluing methods include for example line application, curtain application, spray application and roll application. These methods typically make use of a glue mixture in fluid state wherein a binder polymer with additives and curing agents has been dispersed in an aqueous or solvent solution.
  • a glue mixture of phenol-formaldehyde resin, which typically has a density of about 1.2g/cm 3 and a viscosity of about 500 - 1000mPa*s.
  • Currently used in line application is also solid non-flowing foamed glue mixture which contains air as the medium and has considerably lower density than dispersion glue, i.e. about 0.2g/cm 3 . Industrial use of the foamed glue mixture has previously been possible only in connection with line application.
  • the objective of the invention is to elimi- nate the drawbacks referred to above and to disclose a new type of method and apparatus for manufacturing a wood board.
  • One specific objective of the invention is to disclose the use of foamed glue in spray application.
  • the method and apparatus for manufacturing a wood board according to the invention are characterized by what has been presented in the claims.
  • the invention is based on a method for manufacturing a wood board, in which method the wood board of multiple veneer layers is formed from a number of veneers in such manner that the veneer layers are stacked one on top of the other and connected by means of glue.
  • air is added to the glue and the glue is foamed to form foam glue, and the foam glue is applied evenly between the veneer layers, on at least one surface of the veneer, by spray application.
  • a wood board of multiple veneer layers refers to a wood board with two or more layers.
  • the invention is based on an apparatus for applying glue between veneer layers in connection with the manufacture of a wood board, wherein the wood board of multiple veneer layers is formed from a number of veneers in such manner that the veneer layers are stacked one on top of the other and connected by means of glue.
  • the apparatus comprises glue supply means for supplying foamed glue for spray application, and at least one spray application head for applying the foamed glue on at least one surface of the veneer.
  • a wood board refers to any wood board product, plywood product, composite product, beam, compressed board product or a corresponding layered product, formed from veneers and veneer layers and mainly from wood-based materials, in which the veneers are stacked one on top of the other and glued together.
  • a veneer layer refers to any layer of material, typically a thin layer of material, used for forming a layered board. The layer of material may be formed from a wood-based material or other material applicable for the purpose.
  • glue refers to any type of glue or glue mixture known per se in the art that can be foamed to form foam glue and is typically used in different application methods. Foamed glue is more solid in mobility and has lower density than the traditional glue dispersion. In foamed glue, the water or solvent has been partly replaced by air, which reduces the risk of breaking due to vapour pressure in connection with curing, or of distortion of the board due to moisture .
  • the em- ployed glue is in the form of a dispersion containing air, and the glue dispersion is foamed.
  • the glue contains a phenol-, resorcinol-, mela- mine- and/or urea-based resin or derivatives thereof and water or a solvent.
  • the glue has been selected from the group of polyphenol dispersion, polyurea dispersion, polymelamine dispersion and mixtures thereof.
  • the glue may contain different additives, such as a curing agent, surface- active agent, stabilizer or the like. The additives may ⁇ be added to the glue in any suitable stage.
  • the amount of air added to the glue is adjusted so as to have the density of the foam glue between 0.2 and 0.8g/cm 3 , more preferably between 0.3 and O. ⁇ g/cm 3 .
  • the density of the foam glue is arranged to be between about 0.4 and 0.5g/cm 3 . With these foam glue densities the homogeneity of the glue mixture is good. If the density rises considerably, the homogeneity and stability of the glue mixture normally drop.
  • the density of the foam glue employed in the method according to the invention is not as high as with regular dispersion glue.
  • the glue or glue mixture may be foamed by commercial foaming devices known per se comprising air supply means and a homogenizer.
  • commercial foaming devices known per se comprising air supply means and a homogenizer.
  • the supply of glue mixture and air and the adjustment of temperature and pressure can be sufficiently controlled.
  • the air may be added to the glue in connection with or before the foaming device.
  • spraying is performed by air diffusion, high pressure diffusion and/or ultrasound diffusion.
  • spraying is performed at low pressure, e.g. at a pressure of about 4 to 5 bar, preferably by air diffusion. In an alternative embodiment., spraying is performed at high pressure, e.g. at a pressure of 15 to 20, bar.
  • the glue is sprayed by atomization and/or fan air.
  • Fan air provides formation of a fan and determines the shape of the fan when the glue is sprayed onto the surface of the veneer.
  • Atomization air causes the foamed glue to be formed into droplets in connection with spraying. By the amount of air it is possible to adjust the droplet size in the glue during spraying while adjusting at the same time adhesion of the glue on the surface of the veneer.
  • the volume of application of the glue has been arranged to be between 80 and 130g/m 2 . In one embodiment, the volume of application of the glue has been arranged to be between 90 and 100g/m 2 .
  • Spray application and the application volume are governed by the speed of the conveyor line, glue supply pressure, density of the foamed glue, height of the spraying nozzles, orientation of the spraying nozzles and/or supply of the atomization and fan air.
  • the glue may be sprayed from different heights, typically from a distance of 10 to 60cm. In one embodiment, the glue is sprayed onto the veneer surface from a height of less than 35cm, e.g.
  • the apparatus used in the manufacture of a wood board comprises conveying and stacking means for the veneers, supply means for the glue, a spray application device for arranging the glue between the veneers and a compression device for compressing the ve- neers to form a wood board.
  • the spray application de- vice according to the invention has been defined in the apparatus claims.
  • the veneer layers are stacked one on top of the other and glue is arranged between the veneer layers.
  • the wood board is compressed under heat and pressure after stacking and gluing to form a wood board of a desired type.
  • Preparation of the glue mixture, stacking of the veneers, gluing the veneers together and other typical steps in the manufac- ture of a wood board may be preferably performed in manners known per se in the art.
  • the apparatus for manufacturing a wood board comprises a foaming device for the glue.
  • the foaming device comprises a pump for supplying the glue, air supply means and a homoge- nizer in which the air is mixed with the glue.
  • the glue may be foamed substantially in connection with the manufacture of the wood board or in a separate step.
  • the spray application device comprises means for supplying atomi- zation air.
  • the spray application device comprises means for supplying fan air. In one embodiment of the invention, the spray application device comprises pressure control means. In one embodiment, the device comprises at least one pressure balancing valve so that the supply pressure of the glue remains substantially steady at the spray application head. The pressure does not need to be constant .
  • the device comprises return means for the foamed glue for returning excess glue, e.g. glue that has run through the glue pipe, back to use.
  • a centrifuge or a suchlike device is used as the return means, where the foam is separated and the liquid glue returns for use.
  • the wood board according to the invention may comprise veneer layers of different thicknesses. The thickness of the veneer layers may vary. The veneer layers may be arranged in a desired position, i.e. transversely or longitudinally in a desired order. The method and the apparatus according to the invention for manufacturing a wood board may be used in different stacking processes.
  • foam glue mixture known per se in connection with spray application.
  • foam glue according to the invention in connection with spray application reduces gluing problems and in particular consumption of the glue considerably.
  • the glue can be applied very evenly and homogenously between the ve- neers.
  • line speed during gluing may be raised e.g. to a level of 100 to 200m/min without problems e.g. in the application of the glue.
  • the invention provides the advantage that the foam glue contains less water or solvent than glue dispersion. Therefore, problems relating to vapour pressure in connection with hot-pressing are reduced. In addition, absorption of the glue into the veneers is reduced, and the gluing process allows higher mean moisture for the veneers.
  • the invention allows the use of the same foamed glue in different glue application processes. A further advantage is the increased number of possible uses of the glue due to the foaming and the application method.
  • Figure 1 presents a simplified schematic view of the spray application device for glue according to the invention.
  • pilot test runs were first conducted to gain' more information for the actual test run.
  • the pilot test runs comprised testing a spray application device with one nozzle and a spray application device with three noz- zles. These pilot test runs confirmed that foam glue can be successfully applied by spray application.
  • the spray application device 1 comprising glue supply means and a spray application head.
  • Foamed glue mixture 5 was supplied into first horizontal glue pipe 2 in the spray application device.
  • the glue mixture was conducted to ten spray nozzles 8 in the application head (of which nozzles only part have been presented in the figure) , these nozzles being operated by air 4, 7, i.e. atomization and fan air.
  • the spray nozzles 8 have been arranged at even intervals on the glue inlet pipe, i.e. the first pipe 2.
  • the device comprises another pipe in parallel to the first pipe, namely a glue outlet pipe 3. Excess glue 6 was conducted out from the device through the second pipe 3.
  • the first 2 and the second pipe 3 are arranged transversely or diagonally relative to the conveyed veneer in the event where glue is being applied.
  • an automatic pressure balancing valve (not shown in the fig- ure) , disposed to the second pipe 3, i.e. in connection with glue output.
  • the pressure balancing valve it is possible to balance the pressure at the spray application head to a desired level.
  • the spray nozzles 8 were arranged at a dis- tance of 20 to 30cm from the surface of the veneers.
  • the glue fans sprayed from the nozzles were arranged so that the fans which would hit the surface of the veneers overlapped each other.
  • the test of this example comprised manufac- turing plywood which was glued by foamed PF glue mixture and wherein the glue mixture was applied by spray- application on the surface of the veneers.
  • the device according to Example 2 was used as the spray application device.
  • the width of the veneers at the conveyor was about 2.6m.
  • the speed of the conveyor line was about 30m/min.
  • a regular foam glue mixture suitable for birch and conifer plywood and containing about 59% of a commercial phenol-formaldehyde resin, about 13% of a curing agent, about 27.5% of water and about 0.5% of a surface-active agent was prepared.
  • the resin glue mixtures designed for birch and conifer plywood may differ in the amount and quality of the source materials. Essentially important factors for successful foaming of the glue dispersion are reduction of the surface tension and stabilization of the foam so that the glue mixture would receive air and stabilize it for a sufficiently long period.
  • the optimum range of the foam glue volume weight was between 0.3 and 0.6g/cm 3 .
  • the method and the apparatus according to the invention are suitable in different embodiments for different uses.
  • the method according to the invention allows the manufacture of any types of wood boards in which a combination of foam glue and spray application can be used.
  • the embodiments of the invention are not limited merely to the examples, referred to above; instead many variations are possible within the scope of the accompanying claims.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

L'invention porte sur un procédé pour fabriquer un panneau de bois, le panneau de bois étant formé à partir d'un certain nombre de couches de placage qui sont combinées par de la colle. Selon l'invention, de l'air est ajouté à la colle et on fait mousser la colle de façon à former une colle en mousse (5), et la colle en mousse (2, 5) est appliquée de façon régulière entre les couches de placage en une application par pulvérisation (8). De plus, l'invention porte sur un appareil (1) pour appliquer la colle en une application par pulvérisation.
PCT/FI2009/050415 2008-05-22 2009-05-19 Procédé et appareil pour fabriquer un panneau de bois WO2009141501A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20085481A FI20085481L (fi) 2008-05-22 2008-05-22 Menetelmä ja laitteisto puulevyn valmistamiseksi
FI20085481 2008-05-22

Publications (1)

Publication Number Publication Date
WO2009141501A1 true WO2009141501A1 (fr) 2009-11-26

Family

ID=39523132

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2009/050415 WO2009141501A1 (fr) 2008-05-22 2009-05-19 Procédé et appareil pour fabriquer un panneau de bois

Country Status (2)

Country Link
FI (1) FI20085481L (fr)
WO (1) WO2009141501A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107138320A (zh) * 2017-07-21 2017-09-08 舟山市敏瑞科技咨询有限公司 一种木板等间距定点涂胶装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323831A (en) * 1938-01-21 1943-07-06 Menger Adolf Process of adhesion
US4115178A (en) * 1975-10-21 1978-09-19 Pacific Adhesives, Inc. Method of making glued, laminated assemblies in prepressed and final pressed stages
US4403013A (en) * 1980-03-07 1983-09-06 Chembond Corporation Thermosetting resin glues foamable to high density
US20060286290A1 (en) * 2005-06-15 2006-12-21 Spraying Systems Company Liquid adhesive dispensing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323831A (en) * 1938-01-21 1943-07-06 Menger Adolf Process of adhesion
US4115178A (en) * 1975-10-21 1978-09-19 Pacific Adhesives, Inc. Method of making glued, laminated assemblies in prepressed and final pressed stages
US4403013A (en) * 1980-03-07 1983-09-06 Chembond Corporation Thermosetting resin glues foamable to high density
US20060286290A1 (en) * 2005-06-15 2006-12-21 Spraying Systems Company Liquid adhesive dispensing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107138320A (zh) * 2017-07-21 2017-09-08 舟山市敏瑞科技咨询有限公司 一种木板等间距定点涂胶装置
CN107138320B (zh) * 2017-07-21 2019-01-29 舟山市敏瑞科技咨询有限公司 一种木板等间距定点涂胶装置

Also Published As

Publication number Publication date
FI20085481A0 (fi) 2008-05-22
FI20085481L (fi) 2009-11-23

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