DE2350022A1 - Adhesive bonding of polymethacrylate panels or sheets - using a polymerisable adhesive contg a hardener - Google Patents

Adhesive bonding of polymethacrylate panels or sheets - using a polymerisable adhesive contg a hardener

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Publication number
DE2350022A1
DE2350022A1 DE19732350022 DE2350022A DE2350022A1 DE 2350022 A1 DE2350022 A1 DE 2350022A1 DE 19732350022 DE19732350022 DE 19732350022 DE 2350022 A DE2350022 A DE 2350022A DE 2350022 A1 DE2350022 A1 DE 2350022A1
Authority
DE
Germany
Prior art keywords
adhesive
hardener
sheets
added
panels
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.)
Pending
Application number
DE19732350022
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German (de)
Inventor
Auf Nichtnennung Antrag
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.)
BIRKHOLZ KUNSTSTOFFWERK GmbH
Original Assignee
BIRKHOLZ KUNSTSTOFFWERK GmbH
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Application filed by BIRKHOLZ KUNSTSTOFFWERK GmbH filed Critical BIRKHOLZ KUNSTSTOFFWERK GmbH
Priority to DE19732350022 priority Critical patent/DE2350022A1/en
Publication of DE2350022A1 publication Critical patent/DE2350022A1/en
Pending legal-status Critical Current

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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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • 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
    • B29C66/112—Single lapped 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
    • B29C66/01—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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
    • 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
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
    • C08J5/124—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives using adhesives based on a macromolecular component
    • C08J5/125—Adhesives in organic diluents
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
    • B29K2033/04—Polymers of esters
    • 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
    • B29L2022/00—Hollow articles
    • 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
    • B29L2024/00—Articles with hollow walls
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/778—Windows
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/10—Homopolymers or copolymers of methacrylic acid esters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The adhesive is prepd. in diluted form, using a solvent, such that it is easily brushed. The hardener is added in excess so that polymn. occurs readily in presence of air. Those parts coated with adhesive are then bonded together by appln. of heat and pressure. The adhesive is used e.g. in installation of acrylic window panes in caravan trailers. Firm bonding is achieved rapidly and securely.

Description

PATENTANWÄLTEPATENT LAWYERS

dr. W. Schalk · dipl.-ing. P. Wirth · dipl.-ing. G. Dannenberg DR. V. SCHMIED-KOWARZIK - DR. P. WEI NHOLD · DR. D. GUDELdr. W. Schalk dipl.-ing. P. Wirth dipl.-ing. G. Dannenberg DR. V. SCHMIED-KOWARZIK - DR. P. WEI NHOLD · DR. D. GUDEL

6 FRANKFURT AM MAIN6 FRANKFURT AM MAIN

OR. ESCHENHEIMER STRASSE 39OR. ESCHENHEIMER STRASSE 39

3.10.1973
Gu/ArOctober 3, 1973
Gu / Ar

Birkholz Kunststoffwerk G-mbH. 6148 Heppenheim/BergstraßeBirkholz Kunststoffwerk G-mbH. 6148 Heppenheim / Bergstrasse

Rb'ntgenstr. 3 Rb'ntgenstr. 3

Verfahren zum Verbinden von Platten aus Polymethacrylsäureestern«Method for joining sheets of polymethacrylic acid esters «

Die Erfindung "betrifft ein Verfahren zum Verbinden von planen oder verformten Platten aus Polymethacrylsäureestern unter Verwendung eines Polymerisationsklebers, dem ein Härter zugesetzt ?/ird.The invention "relates to a method for connecting planes or molded sheets of polymethacrylic acid esters using a polymerization adhesive to which a hardener has been added ? / ird.

Die Verklebung von derartigen Acrylglasplatten oder verformten Teilen aus Acrylglas miteinander durch sogenannte Polymerisationskleber, das sind gelöste Polymere in monomer oder einfacher gesagt flüssiges Acrylglas, dem ein Katalysator oder Härter beigefügt ist, ist bekannt. Die volle Klebefestigkeit wird bei diesem Verfahren erst nach einigen Stunden erreicht. Die Zeit kann zwischen zwei bis acht Stunden betragen.The bonding of such acrylic sheets or deformed parts made of acrylic glass to one another by means of so-called polymerisation adhesives, These are dissolved polymers in monomeric or, to put it more simply, liquid acrylic glass, which is a catalyst or hardener is attached is known. With this method, full adhesive strength is only achieved after a few hours. The time can be anywhere from two to eight hours.

Die Erfindung vermeidet diesen Nachteil. Ihr liegt die AufgabeThe invention avoids this disadvantage. The task is yours

509816/049 8509816/049 8

zu Grunde, ein Verfahren zum Verbinden von Acrylglasplatten vorzuschlagen, das sich einfach und schnell durchführen lässt, und bei dem die nach dem Verfahren hergestellten Teile, insbesondere Wohnwagenfenster, in ihrer Optik und Festigkeit optimal sind.basically, a process for joining acrylic sheets to propose that can be carried out easily and quickly, and in which the parts manufactured by the process, in particular Caravan windows are optimal in their appearance and strength.

Dies gelingt gemäss der Erfindung dadurch, dass der Kleber mittels eines Lösungsmittels so dünnflüssig angesetzt wird, dass er streichfähig wird, dass der Härter im Überschuss zugegeben wird, so dass .die Polymerisation schon an der luft einsetzt, und dass die mit dem Kleber bestrichenen Teile mittels Wärme und Druck miteinander verbunden werden.According to the invention, this is achieved in that the adhesive is made so thin by means of a solvent that it is spreadable that the hardener is added in excess so that. the polymerization begins in the air, and that the parts coated with the adhesive are connected to one another by means of heat and pressure.

Mach diesem Verfahren können die miteinander zu verbindenden !Flächen sehr schnell bestrichen werden, weil der Kleber, der bei dem bekannten Verfahren eine sirupartige Konsistenz hat, ausreichend dünnflüssig ist. Weil ein höherer Anteil als herkömmlich an Härter zugesetzt wird, wird das Aushärten des Klebemittels erheblich beschleunigt. Wesentlich ist es ausserdem, dass die miteinander zu verbindenden Stellen und vor allem der Kleber nach dem Aufstreichen ausreichend erwärmt werden, so dass auch dadurch die Polymerisation wesentlich beschleunigt wird.Doing this procedure allows the to be joined together ! Surfaces can be coated very quickly because the adhesive, which has a syrupy consistency in the known process, is sufficiently thin. Because a higher proportion of hardener than usual is added, the hardening of the adhesive is improved accelerated considerably. It is also essential that the bodies to be connected and, above all, the Adhesive must be warmed up sufficiently after it has been applied, so that the polymerization is also significantly accelerated as a result.

Bevorzugt v/ird es, wenn die Yfärmezufuhr durch Hochfrequenz erfolgt. Derartige Hoch.fr equenz-Schweissanlagen sind bekannt und lassen sich in der Porm ihrer Elektroden der jeweils erwünschten Klebezone gut anpassen. Ausserdem kann die notwendige Wärmeenergie in der gewünschten Tiefe sehr schnell in das Material eingebracht werden. Grundsätzlich ist aber auch eine Erwärmung mittels Ultraschall möglich.It is preferred if the heat is supplied by high frequency. Such high frequency welding systems are known and can be easily adapted in the shape of their electrodes to the respectively desired adhesive zone. In addition, the necessary heat energy can be introduced very quickly into the material to the desired depth. In principle, however, there is also warming possible using ultrasound.

Bei der Herstellung von Wohnwagenfenstern ergeben sich geschlossene Irinenräume, weil diese Wohnwagenfenster oft nach Art von Doppelfenstern ausgebildet werden. In diesem Pail wird eine plane Acrylglasplatte mit einer entsprechend verformten Acrylglasplatte verbunden. Beim beschriebenen Klebe-Schweissvorgang entstehen Dämpfe, die an der Aussenseite des WohnwagenfenstersThe manufacture of caravan windows results in closed ones Irish rooms because these caravan windows are often of the type Double windows are formed. A flat acrylic sheet with a correspondingly shaped acrylic sheet is placed in this pail tied together. The adhesive-welding process described produces vapors on the outside of the caravan window

509816/0496509816/0496

unschädlich sind, weil sie schnell abgezogen werden können. Im Innern des Doppelfensters sind sie aber nicht erwünscht, weil sie zu Rißbildungen oder auch IVe llung en des Materials führen können. Daher wird es "bevorzugt, wenn "bei Ausbildung eines derartigen geschlossenen Innenraumes aus den Acrylglasplatten dieser Innenraum nach dem Erhärten der Klebeverbindung entlüftet wird! Zum Entlüften werden wenigstens zwei Löcher in die Acrylglasplatten gebohrt, und zwar im Randbereich des Fensters, um die Optik nicht zu beeinträchtigen. Anschliessend erfolgt die angestrebte Entlüftung durch Einblasen von vorzugsweise gereinigtem Stickstoff, Sauerstoff oder Luft. TJm ein erneutes Eindringen schädlicher Dämpfe zu verhindern, werden diese Bohrungen anschliessend mittels Acrylglasstopfen und unter Zuhilfenahme eines Ultraschall-Schweissgerätes sofort wieder fest verschlossen. Die Bohrungen sind danach optisch fast nicht zu erkennen. are harmless because they can be removed quickly. in the Inside the double window, however, they are undesirable because they lead to the formation of cracks or bulging of the material can. Therefore, it is preferred "if" when forming one such a closed interior from the acrylic glass panels, this interior is vented after the adhesive bond has hardened will! At least two holes are made in the acrylic sheets for ventilation Drilled in the edge area of the window so as not to impair the appearance. This is followed by the Desired venting by blowing in preferably purified nitrogen, oxygen or air. TJm a new penetration To prevent harmful vapors, these holes are then made using acrylic glass stoppers and with the help of of an ultrasonic welding device immediately and tightly closed again. The holes are then almost invisible.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispieles näher erläutert, aus dem sich weitere wichtige Merkmale ergeben. Es zeigt:The invention is illustrated below using an exemplary embodiment explained in more detail, from which other important features result. It shows:

Pig. 1 eine Ansicht eines Vfohnwagenfensters;Pig. 1 is a view of a caravan window;

Pig. 2 einen Schnitt durch eine Hochfrequenz-Schweissanlage, in die zwei Acrylglasplatten eingelegt sind, die das Penster nach Pig. 1 ausbilden sollen.Pig. 2 a section through a high-frequency welding system, in which two acrylic sheets are inserted, which the Penster after Pig. 1 should train.

Das Wohnwagenfenster besteht im wesentlichen aus einer flachen Platte 1 aus Acrylglas und einer verformten Platte 2, ebenfalls aus Acrylglas. Im Randbereich des Pensters ist die verformte Platte 2 im Ringbereich 3 zur flachen Platte T hin verformt. An den Bereich 3 sehliesst sich ein Ringflansch 4 an, der wieder parallel zur Ebene der flachen Platte 1 verläuft. Die Klebeverbindung zwischen den beiden Platten 1 und 2 erfolgt im Bereich dieses Ringflansches 4.- . .The caravan window consists essentially of a flat plate 1 made of acrylic glass and a deformed plate 2, too made of acrylic glass. In the edge area of the penster, the deformed plate 2 is deformed towards the flat plate T in the ring area 3. An annular flange 4, which again runs parallel to the plane of the flat plate 1, adjoins the area 3. The glue connection between the two plates 1 and 2 takes place in the area this ring flange 4.-. .

Zum Verkleben der beiden Platten 1, 2 wird der Polymerisationskleber oder ein anderer Kleber mit ähnlichen Eigenschaften auf To bond the two plates 1, 2, the polymerization adhesive or another adhesive with similar properties is used

50 9816/0 49650 9816/0 496

die Innenseite des Ringflansches 4 gestrichen, nachdem er in der beschriebenen "/eise dünnflüssig gemacht wurde, und nachdem ausreichend Härter zugesetzt wurde. Der Kleber ist in Fig. 2 bei Pos. 5 angedeutet. Die so bestrichenen Flächen werden sofort aufeinander gefügt und mittels einer Hochfrequenz-Schweissanlage fest miteinander verbunden. Diese Hochfrequenz-Schweissanlage hat ein Oberteil 6, ein Unterteil 7 und eine Ringelektrode 8, die ringsum auf den Ringflansch 4 von aussen aufgedrückt wird.' Die Aushärtung des Klebers zu einer maximalen Festigkeit der verklebten Flächen erfolgt schon innerhalb von ca. zwei Minuten, so dass die Teile anschliessend sofort weiterbearbeitet werden können. Dadurch wird der gesamte· weitere Arbeitsprozess wesentlich verkürzt.the inside of the annular flange 4 painted after it was made thin in the described "/ ice, and after sufficient hardener has been added. The adhesive is indicated in FIG. 2 at item 5. The surfaces painted in this way are immediately joined together and firmly connected to one another by means of a high-frequency welding system. This high-frequency welding system has an upper part 6, a lower part 7 and a ring electrode 8, which is pressed all around onto the ring flange 4 from the outside. The hardening of the adhesive to maximum strength of the bonded surfaces takes place within approx. Two minutes, so that the parts can then be processed further immediately. This makes the entire further work process essential shortened.

Die eventuell bei diesem Vorgang entstehenden Dämpfe werden durch Entlüften des Innenraumes nach dem Schweiss-Klebevorgang beseitigt. Zu diesem Zweck sind zwei Bohrungen 9 in den Bereich 3 der verformten Platte 2 gebohrt worden, über die gereinigter Stickstoff unter Druck eingeblasen wird. Diese Bohrungen von ca. 6 mm Durchmesser werden anschliessend mittels Kunststoffstopfen unter Zuhilfenahme eines Ultraschallscliweissgerätes' wieder fest verschlossen.Any vapors that may arise during this process are removed by venting the interior after the weld-bonding process eliminated. For this purpose, two holes 9 have been drilled in the area 3 of the deformed plate 2, over the cleaned one Nitrogen is blown in under pressure. These holes with a diameter of approx. 6 mm are then made using plastic plugs with the help of an ultrasonic clip-on device tightly closed again.

Die nach diesem Verfahren hergestellten Teile, insbesondere Wohnwagenfenster, sind von ihrer Optik und Festigkeit her optimal.The parts manufactured using this process, especially caravan windows, are optimal in terms of their appearance and strength.

Die gewünschten Ergebnisse erhält man beispielsweise, wenn man dem Kleber 2-4, vorzugsweise etwa 39Gew.-^ Härter und 6 - 10, vorzugsweise etwa 8, Gew.-^ Verdünnung zusetzt, je nach der gewünschten Aushärtezeit.The desired results are obtained, for example, if the adhesive is added 2-4, preferably about 3 to 9 wt .- ^ hardener and 6-10, preferably about 8 wt .- ^ thinner, depending on the desired curing time.

- Ansprüche 509816/049B - Claims 509816 / 049B

Claims (1)

Birkholz Kunststoffwerk GmbH.Birkholz Kunststoffwerk GmbH. 3.10.1973
Gu/ArOctober 3, 1973
Gu / Ar PatentansprücheClaims 1. Verfahren zum Verbinden von planen oder verformten Platten aus Polymethacrylsäureestern unter Verwendung eines Polymerisationsklebers, dem ein Härter zugesetzt wird, , dadurch gekennzeichnet, dass der Kleber :(5")" mittels eines .Lösungsmittels so dünnflüssig angesetzt wird, dass er streichfähig wird, dass der Härter im Überschuss zugegeben wird, so dass die Polymerisation schon an der Luft einsetzt, und dass die mit dem Kleber bestrichenen Teile mittels V/arme- und Druck miteinander verbunden werden. · .1. Procedure for joining flat or deformed panels from polymethacrylic acid esters using a polymerisation adhesive, to which a hardener is added, characterized in that the adhesive : (5 ")" made so thin by means of a solvent that it is spreadable, that the hardener is added in excess, so that the polymerization already takes place begins in the air, and that the parts coated with the adhesive are connected to one another by means of V / arms and pressure will. ·. 2. Verfahren nach Anspruch 1, dadurch gekennz -e ichnet , dass die zu verbindenden Teile (1, 2) und der Kleber mittels Hochfrequenz erwärmt werden.2. The method according to claim 1, characterized -e ichnet that the parts to be connected (1, 2) and the adhesive are heated by means of high frequency. 3. Verfahren nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet , dass bei Ausbildung eines geschlossenen Innenraumes dieser nach dem Erhärten der Klebeverbindung entlüftet wird.3. The method according to claim 1 or claim 2, characterized in that when forming a closed interior this is vented after the adhesive bond has hardened. 4. Verfahren nach Anspruch 3, dadurch gekenn-4. The method according to claim 3, characterized diethe zeichnet , dass/aie Zu- und Ableitungen des Innenraumes bildenden Bohrungen (9) nach dem Entlüften mit Kunststoffstopfen verschlossen werden, die mittels Ultraschall verschweisst werden.indicates that / aie inlets and outlets of the interior forming bores (9) are closed with plastic stoppers after venting, which are carried out by means of ultrasound be welded. 509816/049509816/049 LeerseiteBlank page
DE19732350022 1973-10-05 1973-10-05 Adhesive bonding of polymethacrylate panels or sheets - using a polymerisable adhesive contg a hardener Pending DE2350022A1 (en)

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DE19732350022 DE2350022A1 (en) 1973-10-05 1973-10-05 Adhesive bonding of polymethacrylate panels or sheets - using a polymerisable adhesive contg a hardener

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DE19732350022 DE2350022A1 (en) 1973-10-05 1973-10-05 Adhesive bonding of polymethacrylate panels or sheets - using a polymerisable adhesive contg a hardener

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3635703A1 (en) * 1986-10-21 1988-04-28 Winter Optik LENS FOR PROTECTIVE GOGGLES AND THE LIKE
EP0755774A2 (en) * 1995-07-28 1997-01-29 FIAT AUTO S.p.A. Method and apparatus for producing structural parts made of plastics material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3635703A1 (en) * 1986-10-21 1988-04-28 Winter Optik LENS FOR PROTECTIVE GOGGLES AND THE LIKE
EP0755774A2 (en) * 1995-07-28 1997-01-29 FIAT AUTO S.p.A. Method and apparatus for producing structural parts made of plastics material
EP0755774A3 (en) * 1995-07-28 1997-02-05 FIAT AUTO S.p.A. Method and apparatus for producing structural parts made of plastics material

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