Abstract: Adhesive compositions based on polyurethane and a polyamine suspension have a free isocyanate functional group content of between 2 and 9% by weight, with the polyamine being in the form of particles having a mean diameter of between 30 and 60 &mgr;m. A process for preparing the adhesive compositions involves reacting a polyol and a polyisocyanate to form a polyurethane prepolymer, wherein the prepolymer is mixed with the polyamine suspension. The adhesive compositions can be used for the adhesive bonding of materials, especially for motor vehicles.

Abstract: The present invention relates to a pressure-sensitive hot-melt adhesive composition characterized in that it includes a) at least one ethylene-vinyl acetate, ethylene-methyl acrylate or ethylene-butyl acrylate copolymer b) a solid tackifying resin c) a liquid tackifying resin d) an antioxidant e) and optionally a diluent. The invention also relates to the use of the pressure-sensitive hot-melt adhesive composition for the preparation of labels and adhesive tapes and more particularly of the tapes intended to come into contact with the skin.

Abstract: The invention relates to a process for packaging reactive hot-melt adhesive, which consists of pouring the adhesive composition in the molten state directly into a container (1) coated with a material (2) which is abherent on its inner face and with a material (3) which is moistureproof on its outer face, the container being provided with at least one easy-opening start device; and in securing a moisture-proof lid (4) to the free face of the container. It also relates to the packaged adhesives.

Abstract: The invention relates to adhesive compositions based on polyurethane and on a polyamine suspension, characterized in that the free isocyanate functional group content is between 2 and 9% by weight and the polyamine is in the form of particles of mean diameter between 30 and 60 .mu.m. Its subject-matter is also a process for the preparation of the said compositions which consists in reacting a polyol and a polyisocyanate to form a polyurethane prepolymer, which prepolymer is mixed with the polyamine suspension.Such compositions can be employed for the adhesive bonding of materials especially for motor vehicles.

Abstract: The invention relates to polyurethane-based hot-melt adhesives resulting from the polyaddition of a polyisocyanate, of a polyol and of a copolymer of ethylene, of vinyl acetate and of an ethylenically unsaturated monomer containing at least one primary hydroxyl group per mole. It also relates to a process for the preparation of the said adhesives. It also relates to the use of the adhesives for the adhesive bonding of flexible materials such as films.