DE1769440C3 - Bonding of non-porous materials with polyfunctional aromatic cyanic acid esters - Google Patents
Bonding of non-porous materials with polyfunctional aromatic cyanic acid estersInfo
- Publication number
- DE1769440C3 DE1769440C3 DE19681769440 DE1769440A DE1769440C3 DE 1769440 C3 DE1769440 C3 DE 1769440C3 DE 19681769440 DE19681769440 DE 19681769440 DE 1769440 A DE1769440 A DE 1769440A DE 1769440 C3 DE1769440 C3 DE 1769440C3
- Authority
- DE
- Germany
- Prior art keywords
- acid esters
- cyanic acid
- bonds
- adhesives
- adhesive
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/0622—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
- C08G73/0638—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with at least three nitrogen atoms in the ring
- C08G73/065—Preparatory processes
- C08G73/0655—Preparatory processes from polycyanurates
-
- 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
- C09J5/06—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
dunsten der gegebenenfalls in der Klebschicht vorhandenen Lösungsmittel werden die Klebflächen unter innigen Kontakt in der erforderlichen Lage Fixiert und die Klebung zur Härtung eine ausreichende Zeit auf Temperaturen bis 250° C erhitzt Eine Variante des Klebeverfahrens kann darin bestehen, daß das pulverförmige Klebemittel auf bereits erhitzte Klebeflächen gebracht wird.Any solvents present in the adhesive layer evaporate under the adhesive surfaces Intimate contact is fixed in the required position and the adhesive takes a sufficient time to cure Temperatures up to 250 ° C heated. A variant of the gluing process can be that the powdery adhesive is applied to already heated adhesive surfaces is brought.
Bei dem in jedem Falle zur Aushärtung der Klebung erforderlichen Erhitzen kann bei Verwendung monomerer, niedrigschmelzender Cyansäureester das Klebemittel unter Umständen gelegentlich aus, der Klebfuge austreten, und es können als Folge Fehlklebungen resultieren. Mit Vorteil werden daher oft Cyansäureester-Vorpolymerisate verwendet Aus 4,4'-Dicyanatodiphenyl-dimethyl-methan lassen sich z.B. derartige Vorpolymerisate, die bei 20° C hochviskoses oder gar fest sein können, durch einfaches, mehrstündiges Erhitzen auf 50 bis J 50° C herstellen. Die so erhaltenen Vorpolymerisate sied noch löslich und können wie die erfindungsgemäß verwendeten Cyansäureester selbst gelöst z- B. in Aceton, auf die zu verbindenden Flächen aufgebracht werden.In the case of the heating required in each case for the hardening of the bond, the adhesive may occasionally come out of the bond line when using monomeric, low-melting cyanic acid esters leak, and this can result in incorrect gluing result. Cyanic acid ester prepolymers are therefore often used with advantage Pre-polymers, which can be highly viscous or even solid at 20 ° C, by simply holding them for several hours Heat to 50 to J 50 ° C. The prepolymers obtained in this way are still soluble and can, like the Cyanic acid esters used according to the invention, dissolved, for example, in acetone, on the surfaces to be connected be applied.
Den erfindungsgemäß zu verwendenden Cyansäureestern bzw. ihren Vorpolymerisaten, die auch allein, wie schon ausgeführt mit besonderem Verteil eingesetzt werden, können zur Modifizierung andere Produkte, z. B. Füllstoffe wie Quarz-, Schiefer-, Asbestmehl oder Korundpulver, Metallpulver oder auch Plastifiziermittel, zugegebenen werden. Durch gegebenenfalls zugefügte Katalysatoren könnet weiterhin die erforderlichen Härtetemperaturen gesenkt bzw. .-"'-e Härtezeiten verkürzt werden.The cyanic acid esters to be used according to the invention or their prepolymers, which also alone, such as already executed with a special distribution, other products can be used for modification, z. B. fillers such as quartz, slate, asbestos powder or corundum powder, metal powder or plasticizers, be admitted. Catalysts that may be added can continue to provide the necessary Lowered hardening temperatures or hardening times be shortened.
4,4'-Dicyanato-diphenyl-dimethyi-mel} \n wird auf geschmolzen und 48 Stunden auf 120° C erhitzt Dabei bildet sich aus der zunächst dünnflüssigen Schmelze ein in der Hitze hochviskoses Vorpolymerisat das beim Abkühlen zu einem spröden Harz erstarrt Dieses Harz wurde, 60gew.-%ig in Aceton gelöst als Klebmittel verwendet4,4'-Dicyanato-diphenyl-dimethyi-mel} \ n is melted and heated to 120 ° C for 48 hours. The initially thin melt forms a prepolymer that is highly viscous when heated and solidifies to a brittle resin when it cools. This resin was used as an adhesive, 60% by weight dissolved in acetone
Aus den zu klebenden Materialien Bondur (Al-Cu-MgO-Legierung, Materialstärke 1,0 mm), Stahl (Materialstärke 0,15 mm), Kupfer (Materialstärke 1,0 mm) und einem aus 4,4'-Dicyanato-diphenyl-dimethyl-methan hergestellten, mit Glasgewebe verstärktem Kunststoff (Materialstärke 4,0 mm), der in der nachfolgenden Tabelle als Kunststoff, hochtemperaturbeständig, bezeichnet ist wurden für die Herstellung von Prüfkörpern 9 cm lange und 2 cm breite Streifen geschnitten. Die Metalle wurden zunächst mit Trichloräthylen sorgfältig entfettet Stahl, Kupfer und Kunststoff wurden anschließend gründlich mit Schmirgel der Körnung 100 gerauht Die Al-Cu-Mg-Legierung wurde nach dem Pickling-Verfahren mit einer Lösung aus 27,5 Gewichtsteilen konzentrierter Schwefelsäure, 7,5 Gewichtsteilen Natriumdichromat und 65,0 Gewichtsteilen destilliertem Wasser 20 Minuten bei 70° C gebeizt dannFrom the materials to be bonded Bondur (Al-Cu-MgO alloy, material thickness 1.0 mm), steel (material thickness 0.15 mm), copper (material thickness 1.0 mm) and a plastic made from 4,4'-dicyanato-diphenyl-dimethyl-methane reinforced with glass fabric (Material thickness 4.0 mm), which is designated in the table below as plastic, high temperature resistant, strips 9 cm long and 2 cm wide were cut for the production of test specimens. The metals were first carefully degreased with trichlorethylene steel, copper and plastic were then thoroughly roughened with 100 grit emery The Al-Cu-Mg alloy was by the Pickling process with a solution of 27.5 parts by weight of concentrated sulfuric acid, 7.5 parts by weight of sodium dichromate and 65.0 parts by weight then pickled distilled water at 70 ° C for 20 minutes gründlich mit destilliertem Wasser abgespült und anschließend bei 70° C getrocknetrinsed thoroughly with distilled water and then dried at 70 ° C
Das oben beschriebene Klebemittel wurde mit einem Pinsel aufgetragen und die Klebaufstriche 1 Stunde zum Abdunsten des darin enthaltenen Acetons offen gelagert Die 1 cm2 einfach überlappten Klebungen wurden unter einem Druck von 1 kp/cm21 Stunde auf 250° C erhitzt und dann 1 Tag bei 20° C gelagertThe adhesive described above was applied with a brush and the adhesive spreads were stored openly for 1 hour to allow the acetone contained therein to evaporate. The 1 cm 2 simply overlapped bonds were heated to 250 ° C. for 1 hour under a pressure of 1 kp / cm 2 and then for 1 day stored at 20 ° C
Sodann wurden die Klebungen 3 Stunden auf die in der nachstehenden Tabelle angegebenen Temperaturen erhitzt und ihre Scherfestigkeit sofort im Scherversuch bei einer Spindelvorschubgeschwindigkeit von 20 mm/min ermittelt Dabei ergaben sich folgende Resultate:The bonds were then kept for 3 hours at the temperatures given in the table below heated and their shear strength immediately in a shear test at a spindle feed rate of 20 mm / min determined The following results were obtained:
Die Elastizität der Klebschicht wurde im Torsionsschwingversuch nach DlN 53 445 ermittelt.The elasticity of the adhesive layer was determined in a torsional vibration test according to DIN 53 445.
-lOOC + 20C + 100C +20OX +250 C-lOOC + 20C + 100C + 20OX +250 C
1 · 10"l0 dyn/cm2 1 · IO~10 dyn/cm2 9 · 10"9 dyn/cm2 8 · 10"9 dyn/cm2 7 ■ 10"9 dyn/cm2 1 x 10 " 10 dynes / cm 2 1 x 10 ~ 10 dynes / cm 2 9 x 10" 9 dynes / cm 2 8 x 10 " 9 dynes / cm 2 7 · 10" 9 dynes / cm 2
Die erfindungsgemäß verwendeten Klebemittel können allgemein zum Kleben von Werkstoff nicht poröser Natur, u. a. von Materialien, Glas, Porzellan, keramischen Materialien, Glimmer, hochwärmebeständigen Kunststoffen, Verwendung finden.The adhesives used according to the invention can generally be made non-porous for bonding material Nature, i.a. of materials, glass, porcelain, ceramic materials, mica, highly heat-resistant Plastics, find use.
Claims (1)
Priority Applications (24)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19671670916 DE1670916A1 (en) | 1967-08-29 | 1967-08-29 | Process for the production of novel carbamic acid esters |
DE19681720790 DE1720790A1 (en) | 1967-08-29 | 1968-02-23 | Copolyamides with a high content of acidic groups |
DE19681769440 DE1769440C3 (en) | 1968-05-24 | 1968-05-24 | Bonding of non-porous materials with polyfunctional aromatic cyanic acid esters |
CH1147968A CH503043A (en) | 1967-08-29 | 1968-07-31 | Process for the preparation of new carbamic acid esters |
IL30480A IL30480A (en) | 1967-08-29 | 1968-08-02 | Benzimidazolyl carbamic acid esters and their preparation |
BG010482A BG15389A3 (en) | 1967-08-29 | 1968-08-10 | METHOD FOR OBTAINING NEW UREA ACID ESTERS |
US753716A US3609166A (en) | 1967-08-29 | 1968-08-19 | Carbamic acid esters of benzionidazoles |
BE719975D BE719975A (en) | 1967-08-29 | 1968-08-26 | |
AT833868A AT282641B (en) | 1967-08-29 | 1968-08-27 | Process for the preparation of new carbamic acid esters |
ES357658A ES357658A1 (en) | 1967-08-29 | 1968-08-29 | Carbamic acid esters of benzionidazoles |
NL6812312A NL6812312A (en) | 1967-08-29 | 1968-08-29 | |
FR1602520D FR1602520A (en) | 1967-08-29 | 1968-08-29 | |
GB41316/68A GB1176900A (en) | 1967-08-29 | 1968-08-29 | Process for the production of Novel Carbamic Acid Esters |
FR175759A FR8153M (en) | 1967-08-29 | 1968-11-28 | |
NL6902758A NL6902758A (en) | 1967-08-29 | 1969-02-21 | |
FR6904520A FR2002512A1 (en) | 1967-08-29 | 1969-02-21 | Copolyamides contg a high proportion of acid sulphonate |
CH599769A CH515320A (en) | 1967-08-29 | 1969-04-21 | Use of cyanic acid esters and their prepolymers for gluing |
GB24760/69A GB1199269A (en) | 1967-08-29 | 1969-05-15 | A Process for Bonding Non-Porous Material by means of Polyfunctional aromatic Cyanic Acid Esters |
SE06954/69A SE354871B (en) | 1967-08-29 | 1969-05-16 | |
AT488669A AT294280B (en) | 1967-08-29 | 1969-05-22 | Bonding of non-porous materials |
NL6907869A NL6907869A (en) | 1967-08-29 | 1969-05-22 | |
BE733567D BE733567A (en) | 1967-08-29 | 1969-05-23 | |
FR6916959A FR2009271A1 (en) | 1967-08-29 | 1969-05-23 | |
ES367645A ES367645A1 (en) | 1967-08-29 | 1969-05-24 | Carbamic acid esters of benzionidazoles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681769440 DE1769440C3 (en) | 1968-05-24 | 1968-05-24 | Bonding of non-porous materials with polyfunctional aromatic cyanic acid esters |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1769440A1 DE1769440A1 (en) | 1971-09-16 |
DE1769440B2 DE1769440B2 (en) | 1977-08-18 |
DE1769440C3 true DE1769440C3 (en) | 1978-04-13 |
Family
ID=5700132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681769440 Expired DE1769440C3 (en) | 1967-08-29 | 1968-05-24 | Bonding of non-porous materials with polyfunctional aromatic cyanic acid esters |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1769440C3 (en) |
-
1968
- 1968-05-24 DE DE19681769440 patent/DE1769440C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1769440A1 (en) | 1971-09-16 |
DE1769440B2 (en) | 1977-08-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) |