DE3842344A1 - Aqueous contact adhesive dispersion - Google Patents

Aqueous contact adhesive dispersion

Info

Publication number
DE3842344A1
DE3842344A1 DE19883842344 DE3842344A DE3842344A1 DE 3842344 A1 DE3842344 A1 DE 3842344A1 DE 19883842344 DE19883842344 DE 19883842344 DE 3842344 A DE3842344 A DE 3842344A DE 3842344 A1 DE3842344 A1 DE 3842344A1
Authority
DE
Germany
Prior art keywords
contact adhesive
adhesive dispersion
resin
dispersion
weight
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.)
Withdrawn
Application number
DE19883842344
Other languages
German (de)
Inventor
Harald Dr Kehler
Juergen Dr Kramer
Dieter Zimmermann
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.)
Beiersdorf AG
Original Assignee
Beiersdorf AG
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 Beiersdorf AG filed Critical Beiersdorf AG
Priority to DE19883842344 priority Critical patent/DE3842344A1/en
Publication of DE3842344A1 publication Critical patent/DE3842344A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C09J107/00—Adhesives based on natural rubber
    • C09J107/02—Latex

Abstract

Aqueous dispersion of contact adhesive, containing a) NR latex, b) a tackifying resin dispersion, c) a terpene phenolic resin dispersion, and d) conventional auxiliaries such as an emulsifier, antioxidant, stabiliser and/or preservative.

Description

Die Erfindung betrifft eine wäßrige Kontaktklebstoffdispersion, die insbesondere geeignet ist zum Verkleben von Schaumstoffteilen.The invention relates to an aqueous Contact adhesive dispersion which is particularly suitable for bonding foam parts.

In der schaumstoffverarbeitenden Industrie (Konfektionierbetriebe; Polstereien) werden heute lösungsmittelhaltige Kontaktklebstoffe verwendet.In the foam processing industry (Confectionery, upholstery) are today used solvent-containing contact adhesives.

Diese Klebstoffe haben den Vorteil, nach Verklebung mit äußerst geringen Andruck ausreichend hohe Wärmestandfestigkeit zu zeigen.These adhesives have the advantage after bonding with very low pressure sufficiently high To show heat resistance.

Aus Umweltschutzgründen, der Feuergefährlichkeit lösungsmittelhaltiger Klebstoffe, sowie der Gesundheit der Verarbeiter sollen die lösungsmittelhaltigen Klebstoffe durch wasserbasierender Dispersion ersetzt werden. Folglich sind auch bereits diverse wäßrige Klebstoffdispersionen beschrieben worden, z.B. DE-OS 28 34 739 und DE-OS 22 34 773, die aber den Anforderungen der Praxis nicht genügen können. Denn die bekannten Kontaktkleberdispersionen zeigen unter den geforderten minimalen Verklebungsdrucken (maximal 1 N/cm2) keine ausreichende Wärmestandfestigkeit.For environmental reasons, the fire hazard of solvent-based adhesives, as well as the health of the processors, the solvent-based adhesives are to be replaced by water-based dispersion. Consequently, various aqueous adhesive dispersions have already been described, for example, DE-OS 28 34 739 and DE-OS 22 34 773, but can not meet the requirements of practice. Because the known contact adhesive dispersions show under the required minimum bonding pressures (maximum 1 N / cm 2 ) no sufficient heat resistance.

Aufgabe der Erfindung war es, hier Abhilfe zu schaffen, insbesondere eine wäßrige Kontaktklebstoffdispersion zu schaffen, die die Nachteile des Standes der Technik nicht oder zumindest nicht in dem Ausmaß zeigt, und die insbesondere für das Verkleben von Schaumstoffteilen bei minimalem Verklebungsdruck erlaubt.The object of the invention was to remedy this situation create, especially an aqueous Contact adhesive dispersion to create the disadvantages The prior art is not or at least not in the  Extent shows, and in particular for the gluing of Foam parts allowed at minimum adhesion pressure.

Demgemäß betrifft die Erfindung die in den Ansprüchen näher gekennzeichnete wäßrige Kontaktklebstoffdispersion, die in überraschender Weise sogar lösungsmittelhaltige Systeme deutlich übertrifft, wie sich in einem praxisgerechten Labortest zeigen läßt.Accordingly, the invention relates to those in the claims further characterized aqueous contact adhesive dispersion, in a surprising way, even solvent-containing Systems significantly outperforms, as in one show a practical laboratory test.

Das verwendete NR-Latex ist beispielsweise Zentrifugenlatex LA oder Revertex, insbesondere aber Zentrifugenlatex FA.The NR latex used is, for example Centrifuge latex LA or Revertex, but especially Centrifuge latex FA.

Die verwendeten klebrigmachenden Harzdispersionen sind insbesondere Ester des Kollophoniums (hydriert, disproportionert, dimerisiert, polymerisiert), Cumaron-Indenharze, Terpenharze, ganz besonders Kohlenwasserstoffe aus der Petrochemie.The tackifying resin dispersions used are in particular esters of collophonium (hydrogenated, disproportionated, dimerized, polymerized), Cumaron-indene resins, terpene resins, especially Hydrocarbons from the petrochemical industry.

Die verwendete Terpenphenolharzdispersion ist insbesondere eine solche mit einem hohen Schmelzbereich (<60°C)The terpene phenolic resin dispersion used is especially one with a high melting range (<60 ° C)

Die bevorzugt mit-verwendete CR- bzw. PU-Dispersion ist insbesondere ein Polychloropren-Homopolymer mit hohem Modul, bevorzugt anionisch dispergiert, 56% Feststoff, Dichte 1,12g/cm3. Geeignet sind ferner insbesondere aliphatische Polyesterurethan-Dispersionen, emulgatorenfrei, anionisch, pH-Wert 6,5-7,5, 40%ig in Wasser.The preferred CR or PU dispersion used is in particular a high modulus polychloroprene homopolymer, preferably anionically dispersed, 56% solids, density 1.12 g / cm 3 . Also suitable are, in particular, aliphatic polyesterurethane dispersions, emulsifier-free, anionic, pH 6.5-7.5, 40% strength in water.

Geeignete Hilfsstoffe sind insbesondere
Antioxidations-,
Stabilisierungs- und
Konservierungsmittel.Suitable auxiliaries are in particular
antioxidant,
Stabilization and
Preservative.

Die verwendeten Stoffe werden bevorzugt in folgenden Mengen eingesetzt: (bezogen auf Feststoff):
40-80 Gew.-% Naturkautschuk
7,5-47 Gew.-% klebrigmachendes Harz
3-12,5 Gew.-% Terpenphenolharz
1-5 Gew.-% Alterungsschutzmittel
0-1 Gew.-% Konservierungsmittel,The substances used are preferably used in the following amounts: (based on solids):
40-80% by weight of natural rubber
7.5-47% by weight of tackifying resin
3-12.5 wt .-% terpene phenolic resin
1-5% by weight of aging inhibitor
0-1 wt% preservative,

Ein der Praxis weitgehend gerecht werdender Test der relevanten Klebeigenschaften ist wie folgt.One of the practice largely fair test of relevant adhesive properties is as follows.

Prüfkörperspecimen

Schaumstoff verklebt gegen Schaumstoff (Raumgewicht 25 kg/m3) Abmessungen der Prüfkörper: 25×25×250 mm vollflächig verklebt
Auftragsmenge: 200 g/m2
Kontaktandruck: 0,4 N/cm2.Foam glued against foam (density 25 kg / m 3 ) Dimensions of the test pieces: 25 × 25 × 250 mm glued over the entire surface
Application quantity: 200 g / m 2
Contact pressure: 0.4 N / cm 2 .

Belastungburden

Der Prüfkörper wird derartig gebogen, daß die Eigenspannung des Schaumstoffes eine Schälbelastung auf die Klebfuge bewirkt.The test piece is bent in such a way that the Residual stress of the foam on a peel load the adhesive joint causes.

WärmestandfestigkeitHeat resistance

10 Prüfkörper werden in einen Wärmeschrank gehängt. Nach jeweils einer Stunde wird die Temperatur um 10°C erhöht. Dabei wird bei jeder Temperatur geprüft, wieviel Prüfkörper sich getrennt haben.10 specimens are hung in a warming cabinet. To one hour at a time, the temperature is raised by 10 ° C. It is checked at each temperature, how much Test specimens have separated.

Im folgenden wird die Erfindung anhand von Beispielen erläutert, ohne diese damit einschränken zu wollen. In the following the invention is based on examples explained without wishing to restrict this.  

Prozent bedeuten Gew.-Prozent.Percent means weight percent.

Beispiel 1example 1 Feststoffsolid fuel Gesamttotal 120,0120.0 200 Gew.-Teile NR-Latex (KAGETEX FA) (60%)200 parts by weight of NR latex (KAGETEX FA) (60%) 44,044.0 80 Gew.-Teile KW-Harz (ECR 339) (55%)80 parts by weight of KW resin (ECR 339) (55%) 12,612.6 28 Gew.-Teile Terpenphenolharz (KA 310-2) (45%)28 parts by weight terpene phenolic resin (KA 310-2) (45%) 2,52.5 5 Gew.-Teile Alterungsschutzmittel (Naftonox 2246 D) (50%)5 parts by weight of anti-aging agent (Naftonox 2246 D) (50%) 0,250.25 0,5 Gew.-Teile Konservierungsmittel (Konall 15 50%ig)0.5 parts by weight of preservative (Konall 15 50%) 57% Feststoff57% solids

Im obigen Test ergibt diese Dispersion hervorragende Werte.In the above test, this dispersion gives excellent results Values.

Beispiel 2Example 2 Feststoffsolid fuel Gesamttotal 105,0105.0 175 Gew.-Teile NR-Latex (KAGETEX FA) (60%)175 parts by weight of NR latex (KAGETEX FA) (60%) 6,06.0 15 Gew.-Teile PU Dispers. (Impranil DLN) (40%)15 parts by weight PU Dispers. (Impranil DLN) (40%) 5,65.6 10 Gew.-Teile CR-Latex (Dupont 671) (56%)10 parts by weight of CR latex (Dupont 671) (56%) 44,044.0 80 Gew.-Teile KW-Harz (ECR 339) (55%)80 parts by weight of KW resin (ECR 339) (55%) 12,612.6 28 Gew.-Teile Terpenphenolharz (KA 310-2) (45%)28 parts by weight terpene phenolic resin (KA 310-2) (45%) 2,52.5 5 Gew.-Teile Alterungsschutzmittel (Naftonox 2246 D) (50%)5 parts by weight of anti-aging agent (Naftonox 2246 D) (50%) 0,250.25 0,5 Gew.-Teile Konservierungsmittel (Konall 15 50%ig)0.5 parts by weight of preservative (Konall 15 50%) ca. 56% Feststoffabout 56% solids

Im obigen Test ergibt diese Dispersion hervorragende Werte.In the above test, this dispersion gives excellent results Values.

Claims (7)

1. Wäßrige Kontaktklebstoffdispersionen, enthaltend
  • a) NR-Latex,
  • b) eine klebrigmachende Harzdispersion,
  • c) eine Terpenphenolharzdispersion, und
  • d) übliche Hilfsstoffe, wie Emulgator, Antioxidationsmittel, Stabilisierungsmittel und/oder Konservierungsmittel.
1. Aqueous contact adhesive dispersions containing
  • a) NR latex,
  • b) a tackifying resin dispersion,
  • c) a terpene phenolic resin dispersion, and
  • d) customary auxiliaries, such as emulsifier, antioxidant, stabilizer and / or preservative.
2. Kontaktklebstoffdispersion nach Anspruch 1, enthaltend zusätzlich
  • e) eine CR- und/oder PU-Dispersion, insbesondere in Mengen bis zu 25 Gew.-% bezogen auf NR-Latex.
2. Contact adhesive dispersion according to claim 1, containing in addition
  • e) a CR and / or PU dispersion, in particular in amounts of up to 25 wt .-% based on NR latex.
3. Kontaktklebstoffdispersion nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Gesamtharzanteil 20-50 Gew.-% des Feststoffgehalts ausmacht.3. Contact adhesive dispersion according to claim 1 or 2, characterized in that the total resin content 20-50 Wt .-% of the solids content. 4. Kontaktklebstoffdispersion nach Anspruch 1, dadurch gekennzeichnet, daß der Anteil des Terpenphenolharzes 15- 25 Gew.-% der Gesamtharzmenge ausmacht.4. contact adhesive dispersion according to claim 1, characterized characterized in that the proportion of terpene phenolic resin 15- 25% by weight of the total amount of resin. 5. Kontaktklebstoffdispersion nach Anspruch 1, mit einem Erweichungspunkt des klebrigmachenden Harzes von 60 -100°C.5. Contact adhesive dispersion according to claim 1, with a softening point of the tackifying resin of 60 -100 ° C. 6. Kontaktklebstoffdispersion nach Anspruch 1, mit einem Erweichungspunkt des Terpenphenolharzes von mindestens 100°C.6. Contact adhesive dispersion according to claim 1, with a softening point of the terpene phenolic resin of at least 100 ° C. 7. Verwendung einer Kontaktkleberdispersion nach Anspruch 1, zum Verkleben von Schaumstoffteilen.7. Use of a contact adhesive dispersion according to Claim 1, for bonding foam parts.
DE19883842344 1988-12-16 1988-12-16 Aqueous contact adhesive dispersion Withdrawn DE3842344A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883842344 DE3842344A1 (en) 1988-12-16 1988-12-16 Aqueous contact adhesive dispersion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883842344 DE3842344A1 (en) 1988-12-16 1988-12-16 Aqueous contact adhesive dispersion

Publications (1)

Publication Number Publication Date
DE3842344A1 true DE3842344A1 (en) 1990-06-21

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Family Applications (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4018116A1 (en) * 1990-06-06 1992-01-09 Dunlop Gmbh Laminated foam prodn. - by compression moulding polyurethane foam and textile material in heated press, using solvent-free aq. dispersion adhesive
DE19824071A1 (en) * 1998-05-29 1999-12-02 Beiersdorf Ag Process for the production of PSAs from natural rubber latex and adhesive tapes and labels produced therewith
US6454892B1 (en) * 1995-07-11 2002-09-24 Sumitomo Rubber Industries, Ltd. Preparation for sealing punctured tires and apparatus for the sealing and pumping up of tires
US6485827B2 (en) 2001-01-16 2002-11-26 Rohm And Haas Company Pressure sensitive adhesive tape containing natural rubber latex
US6489024B2 (en) 2001-02-12 2002-12-03 Rohm And Haas Company Pressure sensitive adhesive tape containing natural rubber latex
US7294396B2 (en) 2000-07-27 2007-11-13 Tesa Ag Adhesive tape having one side coated with an adhesive, and no surface treatment on the opposite side

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1482887A (en) * 1920-08-30 1924-02-05 Bellis Heat Treating Company Crucible
US1486884A (en) * 1919-05-19 1924-03-18 Hamer William Steam generator
DE2450590A1 (en) * 1973-10-23 1975-04-30 Minnesota Mining & Mfg ADHESIVES MADE GLUE WITH PHENOLIC RESINS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1486884A (en) * 1919-05-19 1924-03-18 Hamer William Steam generator
US1482887A (en) * 1920-08-30 1924-02-05 Bellis Heat Treating Company Crucible
DE2450590A1 (en) * 1973-10-23 1975-04-30 Minnesota Mining & Mfg ADHESIVES MADE GLUE WITH PHENOLIC RESINS

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DE-Z: SATTELMEYER, Richard, WAGNE *
GÜNTER: Ein Verfahren zur Dispergierung von Terpenphenolharzenfür den Einsatz in Dispersionsklebstoffen. In: Seifen-Öle-Fette-Wachse, 103. Jg., Nr.5, 1977, S.133-136 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4018116A1 (en) * 1990-06-06 1992-01-09 Dunlop Gmbh Laminated foam prodn. - by compression moulding polyurethane foam and textile material in heated press, using solvent-free aq. dispersion adhesive
US6454892B1 (en) * 1995-07-11 2002-09-24 Sumitomo Rubber Industries, Ltd. Preparation for sealing punctured tires and apparatus for the sealing and pumping up of tires
US6889723B2 (en) 1995-07-11 2005-05-10 Sumitomo Rubber Industries, Ltd. Preparation for sealing punctured tires and apparatus for the sealing and pumping up of tires
DE19824071A1 (en) * 1998-05-29 1999-12-02 Beiersdorf Ag Process for the production of PSAs from natural rubber latex and adhesive tapes and labels produced therewith
US7294396B2 (en) 2000-07-27 2007-11-13 Tesa Ag Adhesive tape having one side coated with an adhesive, and no surface treatment on the opposite side
US6485827B2 (en) 2001-01-16 2002-11-26 Rohm And Haas Company Pressure sensitive adhesive tape containing natural rubber latex
US6489024B2 (en) 2001-02-12 2002-12-03 Rohm And Haas Company Pressure sensitive adhesive tape containing natural rubber latex

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