Reactive adhesives with low monomeric diisocyanate content

The present invention is a diisocyanate and a polyol and optionally one or more additional polyols， wherein A = phthalic acid or phthalic anhydride， B = at least one organic acid having at least two acid groups or a corresponding anhydride or a corresponding ester， provided that B Is not A)， C = at least one diol， and the molar ratio of monomer A to monomer B is formed from monomers A， B and C with a molar ratio of 1:10 to 10: 1， containing the reaction product of polyester As an adhesive， the average OH value of the polyol used is 10 to 30 mg KOH / g polyol， and the ratio of OH of the polyol used to the NCO group of the diisocyanate used is 1-1.2 to 1-4.0， and the reaction product is 130 ° C. It relates to a reactive adhesive characterized in that it has a viscosity of 1 to 200 Pa · s. The invention also relates to a method for its preparation， and the use of reactive adhesives. The invention relates to a reactive adhesive containing the reaction product of a polyester - formed from the monomers A， B and C， wherein A = phthalic acid or phthalic anhydride， B = at least one organic acid with at least two acid groups or the corresponding anhydride or the corresponding ester， provided that B is not equal to A， and C = at least one diol， and wherein the molar ratio of the monomers A to the monomers B is 1:10 to 10:1 - as a polyol and optionally one or more further polyols with a diisocyanate， characterised in that the average OH value of the used polyols is 10 to 30 mg KOH/g of polyols， the ratio of OH of the used polyols to NCO groups of the used diisocyanates is between 1-1.2 and 1-4.0， and the reaction product has a viscosity of 1 to 200 Pa·s at 130°C. The invention also relates to a method for the production thereof， and to the use of the reactive adhesive. The invention relates to a reactive adhesive containing the reaction product of a polyester - formed from the monomers A， B and C， wherein A = phthalic acid or phthalic anhydride， B = at least one organic acid with at least two acid groups or the corresponding anhydride or the corresponding ester， provided that B is not equal to A， and C = at least one diol， and wherein the molar ratio of the monomers A to the monomers B is 1:10 to 10:1 - as a polyol and optionally one or more further polyols with a diisocyanate， characterised in that the average OH value of the used polyols is 10 to 30 mg KOH/g of polyols， the ratio of OH of the used polyols to NCO groups of the used diisocyanates is between 1-1.2 and 1-4.0， and the reaction product has a viscosity of 1 to 200 Pa·s at 130°C. The invention also relates to a method for the production thereof， and to the use of the reactive adhesive.