Abstract: The invention relates to the use of solid polycarbodiimide resins having a softening temperature of >+30° C. as cross-linking agents for adhesive dispersions polymers. The mixtures from at least one solid polycarbodiimide resin and at least one polymer dispersion are suitable for producing storage stable latent-reactive adhesive dispersions, latent-reactive adhesive layers, self-supporting latent reactive adhesive films or latent-reactive adhesive powders.

Abstract: The invention relates to a multilayer composite, containing a first polymeric layer which on a side is coated with a printing ink containing a polyurethane as binder, and a second layer which with a polyurethane dispersion as adhesive is joined at least partly with the side of the first polymeric layer which is coated with the printing ink containing a polyurethane as binder.

Abstract: The present disclosure relates to an aqueous dispersion containing at least one semicrystalline polyurethane-polyurea polymer and at least one surface-deactivated polyisocyanate. The melting temperature of the semicrystalline polyurethane-polyurea polymer is at least 55° C. The disclosure also relates to a process for preparing the aqueous dispersion, the use of the aqueous dispersion for producing coated substrates or adhesive films, flat or three-dimensional substrates coated with the aqueous dispersion, a substrate coated with at least one semicrystalline polyurethane-polyurea polymer and at least one surface-deactivated polyisocyanate, an adhesive film including at least one semicrystalline polyurethane-polyurea polymer and at least one surface-deactivated polyisocyanate, and a dried adhesive film obtained from such an aqueous dispersion.

Abstract: A hydrophilic polyisocyanate composition includes a polyisocyanate component A) and an emulsifier component B. The polyisocyanate component A) consists of at least one polyisocyanate, including silane and thioallophanate structures, of general formula (I), in which R1, R2 and R3 represent identical or different functional groups and each denote a saturated or unsaturated, linear or branched, aliphatic or cyclo-aliphatic or optionally substituted aromatic or araliphatic functional group having up to 18 carbon atoms, which functional group can optionally also contain up to 3 heteroatoms from the series oxygen, sulfur and nitrogen, X represents a linear or branched organic functional group having at least 2 carbon atoms, Y represents a linear or branched, aliphatic or cycloaliphatic, araliphatic or aromatic functional group having up to 18 carbon atoms, and n represents an integer from 1 to 20, and the emulsifier component B) contains at least one ionic and/or nonionic emulsifier.

Abstract: The invention relates to two-component polyurethane dispersion adhesives including (I) at least one aqueous dispersion including an amorphous polyurethane-polyurea polymer and (II) at least one hydrophilically modified polyisocyanate, containing silane and thioallophanate structures, as a crosslinker component. The invention also relates to the use of these two-component polyurethane dispersion adhesives for producing multi-layered composites, especially those consisting of a synthetic substrate and a substrate with a metallic surface, and to the composite materials obtainable using the adhesives.

Abstract: The invention relates to the use of a separating medium, containing at least one essential oil or consisting of at least one essential oil, selected from the group consisting of phenols, phenylpropanoids and furanocoumarins, for separating at least two joining parts which are joined by means of an adhesive bond.

Abstract: The present disclosure relates to an aqueous dispersion containing at least one semicrystalline polyurethane-polyurea polymer and at least one surface-deactivated polyisocyanate. The melting temperature of the semicrystalline polyurethane-polyurea polymer is at least 55° C. The disclosure also relates to a process for preparing the aqueous dispersion, the use of the aqueous dispersion for producing coated substrates or adhesive films, flat or three-dimensional substrates coated with the aqueous dispersion, a substrate coated with at least one semicrystalline polyurethane-polyurea polymer and at least one surface-deactivated polyisocyanate, an adhesive film including at least one semicrystalline polyurethane-polyurea polymer and at least one surface-deactivated polyisocyanate, and a dried adhesive film obtained from such an aqueous dispersion.

Abstract: The invention relates to the use of mixtures of water and essential oils selected from the group consisting of phenols, phenylpropanoids and furanocoumarins, for separating multilayered composites for the segregated recycling of polymer/metal films.

Abstract: The invention relates to a multilayer composite, containing a first polymeric layer which on a side is coated with a printing ink containing a polyurethane as binder, and a second layer which with a polyurethane dispersion as adhesive is joined at least partly with the side of the first polymeric layer which is coated with the printing ink containing a polyurethane as binder.

Abstract: The invention relates to the use of mixtures of water and essential oils selected from the group consisting of phenols, phenylpropanoids and furanocoumarins, for separating multilayered composites for the segregated recycling of polymer/metal films.

Abstract: The invention relates to the use of a separating medium, containing at least one essential oil or consisting of at least one essential oil, selected from the group consisting of phenols, phenylpropanoids and furanocoumarins, for separating at least two joining parts which are joined by means of an adhesive bond.

Abstract: The present invention relates to aqueous dispersions containing at least one polyurethane and at least one compound with a biocidal action, the at least one compound with a biocidal action containing at least one peroxide group and being present in a quantity of between 0.01 and 1,000 mmol/kg, in relation to the total aqueous dispersion, and relates to a process for preparing a biocide-free aqueous polyurethane dispersion, said process comprising at least the steps: (A) preparing an aqueous solution containing at least one polyurethane and at least one compound with a biocidal action, the at least one compound with a biocidal action containing at least one peroxide group and being present in a quantity of between 0.

Abstract: The invention relates to a method for producing a three-dimensional object by means of a powder-based additive production method from at least one first powdery material, wherein the at least one first powdery material comprises at least one first compound having a first reactive group a). The first reactive group a) is selected from the group consisting of an isocyanate group, a blocked isocyanate group, or a mixture thereof. The invention further relates to a component produced using the method according to the invention, and to powdery material that is suited for the method according to the invention.

Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are still free NCO groups in the material including the fusible polymer.

Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are furthermore blocked NCO groups present in the material comprising the fusible polymer.

Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are furthermore blocked NCO groups present in the material comprising the fusible polymer.

Abstract: A method of applying a material comprising a fusible polymer comprises the step of: applying a filament of the at least partly molten material comprising a fusible polymer from a discharge opening of a discharge element to a first substrate. The fusible polymer has the following properties: a melting point (DSC, differential scanning calorimetry; 2nd heating at heating rate 5° C./min) within a range from ?35° C. to ?150° C.; a glass transition temperature (DMA, dynamic-mechanical analysis to DIN EN ISO 6721-1:2011) within a range from ??70° C. to ?110° C.; wherein the filament, during the application process, has an application temperature of ?100° C. above the melting point of the fusible polymer for ?20 minutes. There are still free NCO groups in the material including the fusible polymer.

Abstract: The invention relates to storage-stable aqueous dispersions of hydrophilically modified polycarbodiimide resins, a method for producing same, and the use of a salt component to reduce carbodiimide hydrolysis in aqueous polycarbodiimide dispersions.

Abstract: The invention relates to storage-stable aqueous dispersions of hydrophilically modified polycarbodiimide resins, a method for producing same, and the use of a salt component to reduce carbodiimide hydrolysis in aqueous polycarbodiimide dispersions.

Abstract: The invention relates to a method for producing a three-dimensional object by means of a powder-based additive production method from at least one first powdery material, wherein the at least one first powdery material comprises at least one first compound having a first reactive group a). The first reactive group a) is selected from the group consisting of an isocyanate group, a blocked isocyanate group, or a mixture thereof. The invention further relates to a component produced using the method according to the invention, and to powdery material that is suited for the method according to the invention.