Abstract: A method for adhesively bonding two substrates, including the steps: (a) applying a liquid, radiation-curable primer composition onto the surface of a first substrate; (b) curing the liquid, radiation-curable primer composition by applying radiation with a suitable wavelength, intensity and temporal exposure such that the radiation-curable primer composition is cured into a solidified, coherent or interrupted layer adhering to the surface of the substrate; (c) optionally storing the primed substrate for a time of up to 6 months; (d) applying a curable adhesive composition onto the cured primer composition on the substrate; (e) joining a second substrate to the adhesive composition on the first substrate such that an adhesive bond is formed between the substrates, wherein the surface of the second substrate to be adhesively bonded is optionally pre-treated to improve adhesion before step (e) is performed; (f) curing the curable adhesive composition.

Abstract: An aqueous composition including: a) at least one epoxy silane containing at least one epoxy group and at least one hydrolysable group bound to Si, b) at least one non-ionic wetting agent and either c1) between 0.2 and 2 wt. % of at least one mercapto silane containing at least one mercapto group and at least one hydrolysable group bound to Si, and as many water-soluble acids as required for the pH of resulting composition to be between 1 and 6, on the condition that epoxy silane content amounts to between 0.2 and 1 wt. %, or c2) between 0.1 and 1 wt. % of a water-soluble organotitanate, in relation to entire weight of aqueous composition, and as many water-soluble bases as required for the pH of resulting composition to be between 8 and 14, on the condition that the epoxy silane content amounts to between 0.2 and 0.5 wt. %.

Abstract: A system of a reinforced body element of a motor vehicle which includes a body element, an expansion material and a reinforcing layer. The expansion material has an expansion rate of at least 200%. Furthermore, the expansion material is arranged between the body element and the reinforcing layer.

Abstract: An adhesive system, having an adhesion promoter composition, containing at least one mercaptosilane, at least one polysilane, at least one transition metal complex having substantially only monodentate ligands, and at least one non-alcoholic solvent, and an adhesive, wherein the adhesive, within an hour after application and storage at 23° C. and 50% relative air humidity, has a tensile shear strength of at least 3 MPa, as measured according to ISO 4587, and/or, within an hour after application and storage at 23° C. and 50% relative air humidity, has at least 50%, preferably at least 60%, of the tensile shear strength achievable after application and storage for 7 days at 23° C. and 50% relative air humidity, as measured according to ISO 4587. An adhesion promoter system has a liquid container having a manually actuable output apparatus, and an adhesion promoter composition, as disclosed above.

Abstract: An aqueous composition including: a) at least one epoxy silane containing at least one epoxy group and at least one hydrolysable group bound to Si, b) at least one non-ionic wetting agent and either c1) between 0.2 and 2 wt. % of at least one mercapto silane containing at least one mercapto group and at least one hydrolysable group bound to Si, and as many water-soluble acids as required for the pH of resulting composition to be between 1 and 6, on the condition that epoxy silane content amounts to between 0.2 and 1 wt. %, or c2) between 0.1 and 1 wt. % of a water-soluble organotitanate, in relation to entire weight of aqueous composition, and as many water-soluble bases as required for the pH of resulting composition to be between 8 and 14, on the condition that the epoxy silane content amounts to between 0.2 and 0.5 wt. %.

Abstract: Embodiments of the present application relate to a composition including A) at least one aminosilane which has at least one hydrolyzable group bonded to Si, B) at least one mercaptosilane which has at least one hydrolyzable group bonded to Si, and C) at least one emulsifier selected from pyrrolidones, propionamides and amino alcohol reaction products, wherein, if at least one amino alcohol reaction product is used as an emulsifier, an amino alcohol and at least part of the aminosilane and/or mercaptosilane are contained in the form of an amino alcohol reaction product, in which at least some of the hydrolyzable groups present in the at least one aminosilane and the at least one mercaptosilane are replaced by the amino alcoholate group of the amino alcohol, D) and/or hydrolysis and/or condensation products of the silanes contained.

Abstract: The present invention relates to an adhesive system, comprising an adhesion promoter composition, containing at least one mercaptosilane, at least one polysilane, at least one transition metal complex comprising substantially only monodentate ligands, and at least one nonalcoholic solvent, and an adhesive, wherein the adhesive, within an hour after application and storage at 23° C. and 50% relative air humidity, has a tensile shear strength of at least 3 MPa, as measured according to ISO 4587, and/or, within an hour after application and storage at 23° C. and 50% relative air humidity, has at least 50%, preferably at least 60%, of the tensile shear strength achievable after application and storage for 7 days at 23° C. and 50% relative air humidity, as measured according to ISO 4587. The adhesive system according to the invention is suited, for example, for bonding glass panes in transport means and also builds up strength very quickly at low temperatures.

Abstract: Embodiments of the present application relate to a composition including A) at least one aminosilane which has at least one hydrolyzable group bonded to Si, B) at least one mercaptosilane which has at least one hydrolyzable group bonded to Si, and C) at least one emulsifier selected from pyrrolidones, propionamides and amino alcohol reaction products, wherein, if at least one amino alcohol reaction product is used as an emulsifier, an amino alcohol and at least part of the aminosilane and/or mercaptosilane are contained in the form of an amino alcohol reaction product, in which at least some of the hydrolyzable groups present in the at least one aminosilane and the at least one mercaptosilane are replaced by the amino alcoholate group of the amino alcohol, D) and/or hydrolysis and/or condensation products of the silanes contained.

Abstract: Compositions having i) at least one mercaptosilane MS, as well as ii) at least one polysilane PS, as well as iii) at least one aromatic secondary aminosilane AS, as well as iv) at least one organotitanium compound.

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: Compositions which have i) at least one mercaptosilane MS, as well as ii) at least one polysilane PS, as well as iii) at least one aromatic secondary aminosilane AS, as well as iv) at least one organotitanium compound.

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: 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 a static mixer (1) having a cylindrical mixer channel formed by a mixer channel housing (5) and a multistage mixer blade element (3) which is disposed in said mixer channel and used for mixing layers of hardening accelerator paste in a stream of highly viscous PU. Discharge openings (7) are provided in the inlet area of the static mixer. Said discharge openings introduce a partial stream of hitherto unmixed highly viscous PU into. secondary channels (6) disposed parallel to the mixer channel. The secondary channels are connected to feeder openings (8) disposed in the wall of the mixer channel downstream of the mixer wing element (3) when viewed in the direction of flow. The unmixed PU is guided in the secondary channels (6) and enters the outer area of the stream coming from the mixer wing element via the feeder openings where the mixed layers of hardening accelerator paste are contained.

Abstract: The invention relates to a static mixer (1) having a cylindrical mixer channel formed by a mixer channel housing (5) and a multistage mixer-wing element (3) which is arranged in said mixer channel and used for mixing layers of a hardening accelerator paste into a flow of highly viscous PU. Discharge openings (7) are provided in the inlet area of the static mixer. Said discharge openings introduce a partial flow of hitherto unmixed highly viscous PU into secondary channels (6) arranged parallel to the mixer channel. The secondary channels are connected to feeder openings (8) arranged in the wall of the mixer channel downstream from the mixer wing element (3) when seen in the direction of flow. The unmixed PU is guided in the secondary channels (6) and enters the outer area of the flow emanating from the mixer wing element via the feeder openings where the mixed layers of hardening accelerator paste are contained.