Bostik Sa

Myriam Grisot-Saule

Christophe Robert

Jean-Francois Chartrel

Sebastien Quinebeche

Sébastien Quinebeche

Jean François Chartrel

The invention concerns a method for preparing an adhesive composition using an extruder having at least two rotating screws, successively comprising:

Production of an adhesive composition in an extruder

The invention relates to a gluing process of an adhesive composition with the use of a gluing nozzle having an extrusion die for continuous extrusion of an adhesive composition over a predetermined width, the extrusion die () comprising a lower lip () and an upper lip (), the upper and lower lips () extending parallel to one another so as to form a transverse channel () for the longitudinal flow of the adhesive composition, the transverse channel extending longitudinally between: a supply opening () for supplying the adhesive composition; and an extrusion outlet () for extrusion of the adhesive composition (); the channel () comprising a concave volume () for relaxation of the adhesive composition between the supply opening () and the gluing outlet ().

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Compiegne, France

Myriam Grisot-Saule