EP0095678A2 - Procédé pour la production d'un film de colle et d'un film de durcisseur et dispositif pour l'exécution du procédé - Google Patents

Procédé pour la production d'un film de colle et d'un film de durcisseur et dispositif pour l'exécution du procédé Download PDF

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Publication number
EP0095678A2
EP0095678A2 EP83104999A EP83104999A EP0095678A2 EP 0095678 A2 EP0095678 A2 EP 0095678A2 EP 83104999 A EP83104999 A EP 83104999A EP 83104999 A EP83104999 A EP 83104999A EP 0095678 A2 EP0095678 A2 EP 0095678A2
Authority
EP
European Patent Office
Prior art keywords
hardener
glue
board
film
sieve
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.)
Granted
Application number
EP83104999A
Other languages
German (de)
English (en)
Other versions
EP0095678B1 (fr
EP0095678A3 (en
Inventor
Joachim Ebert
Claus Dr. Neumann
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to AT83104999T priority Critical patent/ATE29399T1/de
Publication of EP0095678A2 publication Critical patent/EP0095678A2/fr
Publication of EP0095678A3 publication Critical patent/EP0095678A3/de
Application granted granted Critical
Publication of EP0095678B1 publication Critical patent/EP0095678B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B05D1/30—Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating
    • B05D1/305—Curtain coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/002—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the work consisting of separate articles
    • B05C5/004—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the work consisting of separate articles the work consisting of separate rectangular flat articles, e.g. flat sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/005—Curtain coaters
    • 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

Definitions

  • the present invention relates to a method for forming a glue and hardener film and a device for carrying out the method.
  • glue and hardener should be applied separately to the wooden surfaces to be glued with the aid of one nozzle each. Due to the use of nozzles, it cannot be guaranteed that all surfaces to be glued are wetted to the same extent by glue and hardener.
  • DE-PS 2 416 032 describes applying glue and hardener separately to the wood in the form of strips. However, this does not always ensure that strips of glue and hardener come into contact with each other.
  • liquid glue and hardener films
  • the term liquid is used for the terms glue and hardener
  • the pouring curtain is formed by overflowing the liquid over the edge of the trough.
  • the edge of the trough over which the liquid drains must be absolutely flat and arranged horizontally so that a liquid film of Kg / Br to achieve a uniform thickness.
  • air bubbles that emerge from the liquid can form holes in the film.
  • the device suitable for this process which is preferably operated in a stationary manner, essentially consists of storage containers 1 for glue and hardener, with the respective storage containers connected to the respective storage containers, dispensing devices arranged above the board 2, collecting containers 3 arranged below the board, and optionally one for each the return of glue and hardener determined connecting line 4 and in each case a pump 5 arranged in the connecting line, at least one of the dispensing devices consisting of a trough-shaped dispensing container 6, the width of which tapers towards the board and the longitudinal walls 7, 7 'of which are formed in a sieve shape and have a drain edge 8 at their lowest point.
  • a special embodiment of the dispensing device is that the dispensing container 6 has the shape of a three-sided prism, the two inclined longitudinal walls 7, 7 'representing the sieve or perforated plate, the straight line of which forms the drain edge 8 and the open side of the dispensing container with an inlet 11 is provided.
  • the resulting liquid curtain has a tendency to contract, it can be guided and stabilized at its edges. This can be done with the help of in Rigid or elastic rods 9, 9 'acting in a known manner, which are located at the two ends of the trailing edge.
  • Another possibility is to guide and stabilize the liquid curtain through special outlet openings 10, 10 'which are adjustable in size and which are located at both ends of the drain edge.
  • the two outlet openings which can be in the form of holes or slots, allow more liquid to escape per unit of time than the smaller sieve or perforated plate openings. As a result, two liquid strands delimiting the liquid curtain are formed. In individual cases, this type of guiding the liquid curtain can have the advantage of being less susceptible to faults than with guide rods.
  • the flow rate of the liquid is generally regulated by the delivery rate of the pump 12.
  • the pump output is increased.
  • more liquid is conveyed into the sieve trough, and at the same time the liquid outlet area increases.
  • the amount of discharge can be further increased by providing a closed delivery container ( Figure 3).
  • Figure 3 the amount of liquid emerging from the sieve is essentially proportional to the pump pressure.
  • sieves or perforated plates with different mesh sizes can be used.
  • wire mesh sieves with a width of 1 to 6 mm can be used.
  • glue and hardener can be applied either separately or as a mixture.
  • the excess glue and the hardener can be returned to the storage container by means of pumps.
  • the method according to the invention allows the use of various types of liquid glue, e.g. of aminoplast or phenolic resins such as formaldehyde-urea condensates, formaldehyde-urea-melamine condensates, formaldehyde-urea-melamine-phenol condensates, formaldehyde-phenol condensates or formaldehyde-phenol / resorcinol condensates.
  • aminoplast or phenolic resins such as formaldehyde-urea condensates, formaldehyde-urea-melamine condensates, formaldehyde-urea-melamine-phenol condensates, formaldehyde-phenol condensates or formaldehyde-phenol / resorcinol condensates.
  • Glues and hardeners can be used for this in both thixotropic and non-thixotropic settings - in the case of non-thixotropic settings, the hardener should be viscous if necessary - and can be used in pure form or together with additional aids known per se.
  • the method according to the invention ensures that when the glue and hardener are applied separately, both components always come into contact with one another.
  • a metal dispensing container in the form of a three-sided prism was used as the casting device, the edge length of the end walls in each case 15 cm and that of the two inclined, sieve-shaped longitudinal walls in each case 45 cm.
  • the sieve surfaces consisted of wire mesh with a mesh size of 2 mm.
  • rigid, downward-facing metal rods were located at the two lower ends of the drain edge.
  • Example 1 a resorcinol resin and, separately, a thixotropic liquid hardener were cast and in Example 2, a thixotropic resorcinol resin and, separately, a thixotropic liquid hardener.
  • example 2 the glue or hardener described in example 1 was used, a thixotropic agent likewise being added to the glue.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Adhesive Tapes (AREA)
  • Moulding By Coating Moulds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Dental Preparations (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP83104999A 1982-05-29 1983-05-20 Procédé pour la production d'un film de colle et d'un film de durcisseur et dispositif pour l'exécution du procédé Expired EP0095678B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104999T ATE29399T1 (de) 1982-05-29 1983-05-20 Verfahren zur ausbildung eines leim- und haerterfilms und vorrichtung zur ausuebung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823220379 DE3220379A1 (de) 1982-05-29 1982-05-29 Verfahren zur ausbildung eines leim- und haerterfilms und vorrichtung zur ausuebung des verfahrens
DE3220379 1982-05-29

Publications (3)

Publication Number Publication Date
EP0095678A2 true EP0095678A2 (fr) 1983-12-07
EP0095678A3 EP0095678A3 (en) 1985-09-11
EP0095678B1 EP0095678B1 (fr) 1987-09-09

Family

ID=6164870

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104999A Expired EP0095678B1 (fr) 1982-05-29 1983-05-20 Procédé pour la production d'un film de colle et d'un film de durcisseur et dispositif pour l'exécution du procédé

Country Status (5)

Country Link
EP (1) EP0095678B1 (fr)
AT (1) ATE29399T1 (fr)
DE (2) DE3220379A1 (fr)
DK (1) DK169424B1 (fr)
NO (1) NO170915C (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241891A2 (fr) * 1986-04-17 1987-10-21 BASF Aktiengesellschaft Dispositif pour appliquer de la colle sur des éléments de bois
EP0286939A2 (fr) * 1987-04-11 1988-10-19 BASF Aktiengesellschaft Dispositif pour appliquer de la colle sur des éléments en bois
EP0366944A1 (fr) * 1988-10-06 1990-05-09 BASF Aktiengesellschaft Procédé pour appliquer de la colle prête à l'emploi sur la surface d'éléments en bois
GB2255518A (en) * 1991-04-24 1992-11-11 Carrs Paints Limited Process for applying surface coating
WO1998047630A1 (fr) * 1997-04-21 1998-10-29 Bachofen + Meier Ag Maschinenfabrik Procede et dispositif pour appliquer des dispersions sur une bande de materiau
US6458417B2 (en) 2000-07-07 2002-10-01 Akzo Nobel N.V. Method of gluing
CN102935420A (zh) * 2011-08-15 2013-02-20 浙江思博恩新材料科技有限公司 金刚石线锯植砂方法及系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19644156A1 (de) * 1996-10-24 1998-04-30 Sika Chemie Gmbh Vorrichtung und Verfahren zum Auftragen von Klebstoff
CN109225751A (zh) * 2018-09-08 2019-01-18 徐州东宁胶业有限公司 一种胶液的上胶装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1735852U (de) * 1955-12-17 1956-12-13 Kasika Chem Fab G M B H Vorrichtung zur herstellung von ueberzuegen oder filmen aus kunststoff.
GB938084A (en) * 1960-11-07 1963-09-25 Talent Europ Company Ltd Improvements in the production of polyester resin coatings
DE1918462A1 (de) * 1969-04-11 1970-10-15 Buerkle & Co Robert Lackgiessmaschine fuer die Beschichtung plattenfoermiger Werkstuecke
DE2261193A1 (de) * 1972-10-27 1974-06-20 Casco Ab Verfahren zum auftrag von haertbarem kunstharzleim durch spritzen
DE2416032A1 (de) * 1974-03-27 1975-10-16 Casco Ab Verfahren zur herstellung von leimholz

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1735852U (de) * 1955-12-17 1956-12-13 Kasika Chem Fab G M B H Vorrichtung zur herstellung von ueberzuegen oder filmen aus kunststoff.
GB938084A (en) * 1960-11-07 1963-09-25 Talent Europ Company Ltd Improvements in the production of polyester resin coatings
DE1918462A1 (de) * 1969-04-11 1970-10-15 Buerkle & Co Robert Lackgiessmaschine fuer die Beschichtung plattenfoermiger Werkstuecke
DE2261193A1 (de) * 1972-10-27 1974-06-20 Casco Ab Verfahren zum auftrag von haertbarem kunstharzleim durch spritzen
DE2416032A1 (de) * 1974-03-27 1975-10-16 Casco Ab Verfahren zur herstellung von leimholz

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241891A2 (fr) * 1986-04-17 1987-10-21 BASF Aktiengesellschaft Dispositif pour appliquer de la colle sur des éléments de bois
EP0241891A3 (fr) * 1986-04-17 1990-05-02 BASF Aktiengesellschaft Dispositif pour appliquer de la colle sur des éléments de bois
EP0286939A2 (fr) * 1987-04-11 1988-10-19 BASF Aktiengesellschaft Dispositif pour appliquer de la colle sur des éléments en bois
EP0286939A3 (en) * 1987-04-11 1990-05-02 Basf Aktiengesellschaft Apparatus for applying glue to wooden parts
EP0366944A1 (fr) * 1988-10-06 1990-05-09 BASF Aktiengesellschaft Procédé pour appliquer de la colle prête à l'emploi sur la surface d'éléments en bois
GB2255518A (en) * 1991-04-24 1992-11-11 Carrs Paints Limited Process for applying surface coating
WO1998047630A1 (fr) * 1997-04-21 1998-10-29 Bachofen + Meier Ag Maschinenfabrik Procede et dispositif pour appliquer des dispersions sur une bande de materiau
US6458417B2 (en) 2000-07-07 2002-10-01 Akzo Nobel N.V. Method of gluing
CN102935420A (zh) * 2011-08-15 2013-02-20 浙江思博恩新材料科技有限公司 金刚石线锯植砂方法及系统
CN102935420B (zh) * 2011-08-15 2014-06-25 浙江瑞翌新材料科技有限公司 金刚石线锯植砂方法及系统

Also Published As

Publication number Publication date
DK238583A (da) 1983-11-30
DK169424B1 (da) 1994-10-31
NO831902L (no) 1983-11-30
NO170915C (no) 1992-12-30
ATE29399T1 (de) 1987-09-15
DK238583D0 (da) 1983-05-27
DE3373423D1 (en) 1987-10-15
DE3220379A1 (de) 1983-12-01
EP0095678B1 (fr) 1987-09-09
EP0095678A3 (en) 1985-09-11
NO170915B (no) 1992-09-21

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