Abstract: A composition comprises an —NCO component and an —OH component. The —NCO component comprises at least one polyurethane having at least two NCO end groups and optionally a polyisocyanate compound comprising at least one polyisocyanate P comprising at least three isocyanate functions NCO. The —OH component comprises a polybutadiene polyol P1 comprising at least two hydroxyl functions, said polyol P1 having a number-average molecular weight ranging from 1000 g/mol to 15 000 g/mol; a polyol P2 chosen from diols, triols, or mixtures thereof, a polyol P3 having a hydroxyl functionality of greater than or equal to 2, said polyol P3 being chosen from the group consisting of polyether polyols, polyols of natural origin, polyester polyols, and mixtures thereof, and at least one filler, the total content of filler(s) being greater than or equal to 30% by weight relative to the total weight of said —OH component.

Abstract: The present invention relates to a composition comprising: —an —NCO component comprising: A) at least one polyurethane comprising at least two NCO end groups obtained by polyaddition reaction: of a composition comprising at least one diisocyanate, of a composition comprising at least one polyol, B) at least one polyisocyanate comprising at least three isocyanate NCO functions, selected from the group consisting of biurets, of isocyanurates, of adducts of diisocyanates and triols, and of mixtures thereof; an —OH component comprising: at least two polyols P1 having a number-average molecular weight of strictly less than 500 g/mol and at least one polyol P2 having a number-average molecular weight of strictly greater than 1000 g/mol, said composition comprising at least one rheology agent.

Abstract: A PU2K structural adhesive composition comprising an —NCO component and a hardener component. The —NCO component and hardener component each comprise from 0.1% to 40% by weight of a thixotropic composition (A) comprising a bis-urea obtained by reaction of a primary aliphatic amine with a diisocyanate, in suspension in a continuous phase consisting of a plasticizer chosen from an alkyl phthalate and pentaerythritol tetravalerate; and at least one component, among the —NCO component and hardener component, comprises from 5% to 40% by weight of alumina. The structural adhesive is used in the field of construction, the manufacture of transportation means, preferably of the motor vehicle, rail and aerospace industries, and shipbuilding.

Abstract: The present invention relates to a composition comprising: an—NCO component comprising: A) at least one polyurethane comprising at least two NCO end groups obtained by polyaddition reaction: of a composition comprising at least one diisocyanate, of a composition comprising at least one polyol, B) at least one polyisocyanate comprising at least three isocyanate NCO functions, selected from the group consisting of biurets, of isocyanurates, of adducts of diisocyanates and triols, and of mixtures thereof; an —OH component comprising: at least two polyols P1 having a number-average molecular weight of strictly less than 500 g/mol and at least one polyol P2 having a number-average molecular weight of strictly greater than 1000 g/mol, said composition comprising at least one rheology agent.