摘要:
Die vorliegende Erfindung betrifft einen lichthärtenden, reaktiven, haftklebrigen Klebstofffilm Mit dem erfindungsgemäßen Klebstofffilm können strukturelle Verklebungsfestigkeiten erzielt werden. Der Klebstofffilm umfasst (a) mindestens ein reaktives Monomer oder Reaktivharz, (b) einen Initiator, (c) einen Photoredox-Katalysator, (d) ein Polymerisat aus Monomeren, umfassend N-Vinylverbindungen und (e) ein filmbildendes Polymer.
摘要:
The invention relates to a solution in particular for the pre-treatment of a surface, containing, preferably consisting of: I) at least one first silane of formula (I) with R 1 , R 2 , R 3 independently selected from the groups methyl, ethyl, 2 methoxyethyl, propyl, i-propyl, butyl, benzyl, wherein m = 0 or 1, n = 3 to 12, p = 1 or 2, and for p = 1, Y = a functional group selected from the groups (meth)acryl, (meth)acryloxy, mercapto, ureido, -NH-CH 2 -CH 2 -NR 4 R 5 , -NR 4 R 5 (with R 4 and R 5 independently selected from the groups H, alkyl, phenyl, benzyl, cycloalkyl), or for p = 2, Y = NH; II) at least one second silane of formula (II) with R 1 , R 2 , R 3 independently selected from the groups methyl, ethyl, 2 methoxyethyl, propyl, i-propyl, butyl, benzyl, wherein m = 0 or 1, R 8 = H, alkyl, phenyl, benzyl or cycloalkyl; III) at least one alcohol; and IV) water.
摘要:
Ein - insbesondere thermisch härtbarer, schmelzbarer, vorzugsweise haftklebriger - Klebstoff, der thermisch ab einer Temperatur von 110 °C härtbar, bei 60 °C ungefäher einen Monat und bei 23 °C länger als ein Jahr lagerstabil ist und ein daraus hergestelltes Klebeband, umfassend ein epoxidfunktionalisiertes Acrylnitril/Butadien-Copolymer mit durchschnittlich mehr als 1,5 Epoxidgruppen pro Molekül und das gemahlene Reaktionsprodukt aus Phthalsäureanhydrid und Diethylentriamin, zur Verwendung in der Automobilindustrie sowohl im Rohbau auf geölten Blechen als auch in der Lackierstraße auf KTL-beschichteten oder anderweitig lackierten Blechen, zum Kleben und/oder Dichten, zum Beispiel zur Bördelfalzklebung, zur Bördelfalzabdichtung, zur Nahtabdichtung, zur Unterfütterungsklebung, zum Lochverschluss und vieles mehr.
摘要:
The invention relates to: a method for bonding two surfaces by means of a reactive adhesive film system comprising at least two adhesive films (F1 and F2), wherein each adhesive film comprises at least one reactive component (R1 and R2), wherein the bonding is effected via a reaction requiring the presence of both reactive components (R1 and R2), wherein a separation layer (T) that is impermeable for the reactive components (R1 and R2) is provided before the bonding between the adhesive films (F1 and F2) to be brought in contact with one another in order to react, and, in order to effect the bonding, the separation layer (T) is removed at least on some sections of the surface by means of a laser, so that the adhesive films (F1 and F2) come into direct contact with one another and the reaction is started in the presence of the two reaction components (R1 and R2); and a reactive adhesive film system for use in said method.
摘要:
The present invention provides a primer for adhesive tapes with improved adhesion-promoting properties. This is achieved with a primer comprising a mixture G, which is dissolved or dispersed in one or more solvents, consisting of at least one co-polymer obtained by co-polymerization of a monomer mixture, comprising an amount of at least 90 wt% of the following monomers: vinylcaprolactam and/or vinylpyrrolidone; - one or more of the monomers a) and/or b): a) acrylic acid ester of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl group of the alcohol, b) acrylic acid ester of a branched, non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl group of the alcohol, - at least one chlorinated polyolefin, and at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates.
摘要:
The invention concerns a primer comprising a mixture G, in dispersion or solution in one or more solvents, of at least one copolymer obtained by copolymerizing a monomer mixture comprising at least 90 wt% of the following monomers: vinylcaprolactam and/or vinylpyrrolidone and one or more of monomers a) and/or b): a) acrylic esters of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl radical of the alcohol, b) acrylic esters of a branched non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl radical of the alcohol, at least one organofunctional silane of the general structure (I): (R 1 O-) x Si(R 2 ) y (R 3 ) z , in which the radicals R 1 independently of one another are a C 1 -C 4 alkyl radical, a C 2 -C 6 alkoxyalkyl radical or an acetyl radical; the radical R 2 is an aminoalkyl radical, a vinyl group, a methacryloyloxyalkyl radical, an isocyanatoalkyl radical, an O-methylcarbamatoalkyl radical, a glycidoxyalkyl radical or a phenyl radical; the radicals R 3 independently of one another are a C 1 -C 18 alkyl radical and x = 1, 2 or 3; y = 0 or 1 and z = 4 –x –y; at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates. A primer of this kind enables effective promotion of adhesion between pressure-sensitive adhesive tapes and hydrophilic surfaces like glass especially, and allows for incorporation of functional fillers.