Abstract: The present disclosure relates to a method for treating substrates, including cleaning the substrate surface with a melamine foam and of activating of the cleaned substrate surface. The present disclosure further relates to the use of a melamine foam for removing silicone soiling from substrates. The method has proven advantageous in particular for cleaning laminated safety glass panes because it is possible to easily and quickly remove silicone residue adhering to such panes. A suitable selection of the activating agent additionally makes it possible to carry out the cleaning, detecting and activating within a single processing operation, thus significantly simplifying and accelerating the cleaning methods for surfaces used in the related art.

Abstract: A thermally cured silicon coating on a plastic, in particular a thermoplastic, can be adhesively bonded without use of an adhesive primer. Such thermally cured silicon coatings are produced by a process including: application of a silicon composition to the surfaces of a plastic or to the surface of a plastic treated with a plastic primer; air drying of the silicon composition to form a silicone film; baking at a temperature in the range from 80° C. to 200° C.; and application of a bonding agent composition to the silicone film during baking or during the phase of cooling to ambient temperature after baking.

Abstract: The invention relates to compositions comprising or consisting of a reaction product obtained from a reaction mixture of aminosilane of formula (I), a mecaptosilane of formula (II) and an epoxysilane of formula (III). Said compositions are suitable as bonding agents, especially in the form of primers. The compositions are highly adhesive and especially suitable for low-temperature applications and especially for sticking glass together.

Abstract: Aqueous adhesion promoter compositions include at least one aminosilane and/or aminosiloxane and also at least one mercaptosilane. The adhesion promoter compositions are suitable more particularly as primers or adhesion-promoter undercoats for adhesives and sealants. They are especially suitable for the adhesive bonding of vehicle glazing. Exceptionally high adhesion has been found more particularly with glazing featuring applied silver prints.

Abstract: The invention relates to compositions comprising or consisting of a reaction product obtained from a reaction mixture of aminosilane of formula (I), a mecaptosilane of formula (II) and an epoxysilane of formula (III). Said compositions are suitable as bonding agents, especially in the form of primers. The compositions are highly adhesive and especially suitable for low-temperature applications and especially for sticking glass together.

Abstract: The present invention relates to adhesion promoter compositions having at least one adhesion promoter substance, at least one black pigment and at least one luminescent substance. The adhesion promoter compositions can be located and identified easily by irradiation with UV light and analysis of the radiation which is emitted, and are therefore highly suited to use in automated operations, more particularly in the context of glazing a vehicle.

Abstract: A method for producing an adhesive undercoat on a substrate S1 with a substrate temperature of lower than 5° C. The adhesive undercoat composition comprises at least one mercaptosilane MS or an adduct of mercaptosilane and either at least one polysilane PSA, comprising at least one secondary or tertiary amino group, or at least one polysilane PS and at least one aminosilane AS, comprising at least one secondary or tertiary amino group. This method is particularly suited for the gluing of glass, particularly of glass ceramics, preferably for repairing windows of motor vehicles in cold temperatures.

Abstract: The present invention provides compositions comprising at least one reaction product obtained from a reaction mixture comprising i) at least one mercaptosilane MS, and also ii) at least one polysilane PS which contains in particular at least one secondary or tertiary amino group, preferably a secondary amino group, and also iii) at least one epoxy resin EP. The compositions are suitable as adhesion promoters, more particularly in the form of primers. They exhibit good adhesion and are especially suitable for the adhesive bonding of glass and glass ceramic.

Abstract: Aqueous adhesion promoter compositions include at least one aminosilane and/or aminosiloxane and also at least one mercaptosilane. The adhesion promoter compositions are suitable more particularly as primers or adhesion-promoter undercoats for adhesives and sealants. They are especially suitable for the adhesive bonding of vehicle glazing. Exceptionally high adhesion has been found more particularly with glazing featuring applied silver prints.

Abstract: A thermally cured silicon coating on a plastic, in particular a thermoplastic, can be adhesively bonded without use of an adhesive primer. Such thermally cured silicon coatings are produced by a process including: application of a silicon composition to the surfaces of a plastic or to the surface of a plastic treated with a plastic primer; air drying of the silicon composition to form a silicone film; baking at a temperature in the range from 80° C. to 200° C.; and application of a bonding agent composition to the silicone film during baking or during the phase of cooling to ambient temperature after baking.

Abstract: The present invention relates to adhesion-promoting compositions comprising a latent acid in a non-aqueous composition, the latent acid by contact with water being convertible into an acid having a pKa of less than 2. These compositions have the effect more particularly of promoting the adhesion of adhesives and sealants to paints.

Abstract: The present invention relates to organoalkoxysilane compositions which comprise at least one organoalkoxysilane S, and at least one anhydrous surfactant T, where the weight fraction of all of the organoalkoxysilanes S is 33% by weight, based on the weight of the organoalkoxysilane composition, and where the ratio of the weight sum of all of the organoalkoxysilanes S to the weight sum of all of the anhydrous surfactants T (S:T) has a value of from 5:1 to 1:2.

Abstract: A method for cleaning the surfaces of panes, in particular to remove silicone compounds from the surface of panes including a composition with at least one carrier and at least one silicic acid and/or at least one silicate. The composition additionally can include at least one adhesion promoter composition. A method for using such compositions to efficiently remove silicone compounds from glass or glass ceramic surfaces without damaging the glass or glass ceramic surface. A method of cleaning a surface prior to bonding the surface with a second surface. A composition with at least one solvent, at least one adhesion promoter substance, at least one substance selected from among the group consisting of silicic acid and/or silicate and at least one additive.

Abstract: The present invention relates to aqueous two-component adhesion promoter compositions and also to their use in methods of adhesive bonding or sealing. Additionally it relates to packaging consisting of the two-component composition and also a pack having two chambers. The two-component adhesion promoter composition is composed of a first component K1 comprising at least one organoalkoxysilane S and at least one anhydrous surfactant T; and of a second component K2 comprising at least water and at least one acid, the acid being present in an amount such that, after components K1 and K2 have been mixed, the resulting mixture is acidic.

Abstract: The present invention discloses a two-component adhesion-promoter composition for surface pretreatment, comprising two components, the first component, K1, comprising at least one hydrolyzable adhesion promoter substance A which is selected from the group comprising organosilicon compounds, organotitanium compounds, organozirconium compounds, and mixtures thereof; and the second component, K2, comprising at least one compound B which reacts with the adhesion promoter substance A or triggers or catalyzes condensation of the adhesion promoter substance A, and the first and the second components in the unopened state being present in two compartments (1, 2) separated from one another by at least one dividing wall (3).

Abstract: The present invention discloses a two-component adhesion promoter composition for surface pretreatment, comprising two components, the first component, K1, comprising at least one hydrolyzable adhesion promoter substance A which is selected from the group comprising organosilicon compounds, organotitanium compounds, organozirconium compounds, and mixtures thereof; and the second component, K2, comprising at least one compound B which reacts with the adhesion promoter substance A or triggers or catalyzes condensation of the adhesion promoter substance A, and the first and the second components in the unopened state being present in two compartments (1, 2) separated from one another by at least one dividing wall (3).

Abstract: The present invention relates to adhesion promoting cleaner compositions which comprise at least one acid having at least one sulphur atom and a pKa of less than 2, and also at least one wetting assistant and water. These adhesion promoting cleaner compositions promote the adhesion of adhesives and sealants to paints.

Abstract: The present invention relates to aqueous two-component adhesion promoter compositions and also to their use in methods of adhesive bonding or sealing. Additionally it relates to packaging consisting of the two-component composition and also a pack having two chambers. The two-component adhesion promoter composition is composed of a first component K1 comprising at least one organoalkoxysilane S and at least one anhydrous surfactant T; and of a second component K2 comprising at least water and at least one acid, the acid being present in an amount such that, after components K1 and K2 have been mixed, the resulting mixture is acidic.