Abstract: The present invention relates to two-component polyurethane compositions which on the one hand have a long open time and, even after extended exposure to a climate with high atmospheric humidity (e.g., 70% relative humidity), even after 40 minutes and in particular even after 60 minutes, can still be glued and cured to form polymers having high mechanical strength. The composition comprises castor oil, at least one polyol having 5-8 hydroxyl groups, a mixture of two different polyether alcohols and/or polyester polyols on the basis of castor oil or soybean oil and at least one polyisocyanate. The two-component polyurethane compositions are suitable in particular for non-positive filling joints or gaps that are joined by large-surface area structural gluing, in particular of vane half shells of rotor blades for wind power plants.

Abstract: The invention relates to two-component polyurethane compositions which have a long open time and, even alter extended exposure to a high-moisture climate (for example 70% relative humidity), even after 40 minutes, and in particular even after 60 minutes, can still be glued and cured to form polymers having high mechanical strength, whereby a structural adhesive bond is created. The composition comprises castor oil, at least one alkoxylated aromatic diol, at least one polyol having 5 to 8 hydroxyl groups, and at least one polyisocyanate. The two-component polyurethane compositions are suitable in particular for use as structural adhesives, in particular for the adhesive bonding of wing half-shells of rotor blades for wind power plants.

Abstract: The present invention relates to two-component polyurethane compositions which on the one hand have a long open time and, even after extended exposure to a climate with high atmospheric humidity (e.g., 70% relative humidity), even after 40 minutes and in particular even after 60 minutes, can still be glued and cured to form polymers having high mechanical strength. The composition comprises castor oil, at least one polyol having 5-8 hydroxyl groups, a mixture of two different polyether alcohols and/or polyester polyols on the basis of castor oil or soybean oil and at least one polyisocyanate. The two-component polyurethane compositions are suitable in particular for non-positive filling joints or gaps that are joined by large-surface area structural gluing, in particular of vane half shells of rotor blades for wind power plants.

Abstract: The invention relates to two-component polyurethane compositions which have a long open time and, even alter extended exposure to a high-moisture climate (for example 70% relative humidity), even after 40 minutes, and in particular even after 60 minutes, can still be glued and cured to form polymers having high mechanical strength, whereby a structural adhesive bond is created. The composition comprises castor oil, at least one alkoxylated aromatic diol, at least one polyol having 5 to 8 hydroxyl groups, and at least one polyisocyanate. The two-component polyurethane compositions are suitable in particular for use as structural adhesives, in particular for the adhesive bonding of wing half-shells of rotor blades for wind power plants.

Abstract: The present invention relates to the manufacturing of honeycomb sandwich panels. Particularly a two component polyurethane adhesive having a Polyol P1 with a bisphenol-A or bisphenol-F moiety in its structure, a polyester or polyether Polyol P2, a heat-activated polyurethane catalyst CA and a polyisocyanate PI. The adhesive is remarkably well suited for the manufacturing of honeycomb sandwich panels showing particularly a short curing time combined with a long open time and good wetting and bonding properties.

Abstract: The present invention relates to the manufacturing of honeycomb sandwich panels. Particularly a two component polyurethane adhesive having a Polyol P1 with a bisphenol-A or bisphenol-F moiety in its structure, a polyester or polyether Polyol P2, a heat-activated polyurethane catalyst CA and a polyisocyanate PI. The adhesive is remarkably well suited for the manufacturing of honeycomb sandwich panels showing particularly a short curing time combined with a long open time and good wetting and bonding properties.