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.

A process comprising a) mixing i) an isocyanate reactive component that contains from 2 to 100 weight percent of an aminobenzoate terminated composition wherein the isocyanate reactive component does not contain a solvent; and ii) an isocyanate terminated component having an isocyanate functionality of from 2 to 6 wherein the isocyanate terminated component does not contain a solvent; at a stoichiometric ratio of NCO to reactive hydrogen in the range of from 0.9 to 2.5; to form an adhesive composition; b) applying the adhesive composition to a primary substrate; and c) laminating the primary substrate with a secondary film to form a laminate structure, is disclosed. The laminate structure can be used as a laminating adhesive.

Provided herein is a two-component polyurethane adhesive composition.

The present invention relates to a process for cold bonding elastomeric rubber substrates to non-elastomeric substrates of a different material, preferably metal, by use of a rubber treatment, preferably a primer composition and a 2k adhesive, preferably a 2k epoxy adhesive as well as the thus obtained bonded substrates.

The present invention relates to a process for cold bonding elastomeric rubber substrates to non-elastomeric substrates of a different material, preferably metal, by use of a rubber treatment, preferably a primer composition and a 2k adhesive, preferably a 2k epoxy adhesive as well as the thus obtained bonded substrates.

Non-silicone urea-based adhesives are disclosed which are prepared by the polymerization of reactive oligomers with the general formula XBX, where X is an ethylenically unsaturated group and B is a unit free of silicone and containing urea groups. The reactive oligomers can be prepared from polyamines through chain extension reactions using diaryl carbonates followed by capping reactions. Adhesive articles, including optical adhesive articles may be prepared using the disclosed non-silicone urea-based adhesives.

Non-silicone urea-based adhesives are disclosed which are prepared by the polymerization of reactive oligomers with the general formula XBX, where X is an ethylenically unsaturated group and B is a unit free of silicone and containing urea groups. The reactive oligomers can be prepared from polyamines through chain extension reactions using diaryl carbonates followed by capping reactions. Adhesive articles, including optical adhesive articles may be prepared using the disclosed non-silicone urea-based adhesives.

The invention relates to a method for preparing a polyurethane polymer, comprising: (A) contacting of at least one isophorone diisocyanate (IPDI) monomer with at least one first polyol in the presence of at least one first catalyst; (B) contacting of the urethane prepolymer with at least one second polyol in the presence of at least one second catalyst to form the polyurethane polymer, wherein the first catalyst is a guanidine-type catalyst and the second catalyst is an (organo) metallic catalyst or wherein the first catalyst is an (organo) metallic catalyst and the second catalyst is a guanidine-type catalyst.

The invention relates also to a two-component composition and to the use thereof as an adhesive for bonding two substrates together.

Lastly, the invention relates to an article comprising at least one layer obtained by crosslinking of said composition and to a method for preparing said article.

The invention relates to an adhesive composition comprising a crosslinked silyl-containing telechelic polyurea polymer and methods for making the same. Typically, the composition is formed into a patch which shows excellent adhesion to the skin even when drugs and other additives are dissolved into the composition.

The invention relates to an adhesive composition comprising a crosslinked silyl-containing telechelic polyurea polymer and methods for making the same. Typically, the composition is formed into a patch which shows excellent adhesion to the skin even when drugs and other additives are dissolved into the composition.