Basf Se Corporation

Bostik Sa

Bostik, Inc.

Bostik Findley S.a.

Jean-Francois Chartrel

Christophe Robert

Thomas Daniel

Christophe Bauduin

Olivier Laferte

Lahoussaine Lalouch

Michel Miskovic

Renate Wuestefeld

Myriam Grisot-Saule

Julien Liger

The invention relates to a process for hot application of an adhesive composition () on a support (), by means of a system comprising: a nozzle () for applying the adhesive composition (), a line () for supplying the nozzle () with the adhesive composition () to be applied in fluid form, a mixer () positioned in the line () for the homogeneous mixture of the main components of the adhesive composition before its application; the applied adhesive composition () including as main components: a silylated prepolymer, a compatible tackifying resin; the adhesive composition comprising a cross-linking catalyst; the process comprising: supplying the line () with the silylated prepolymer separated from the cross-linking catalyst, the mixing of the cross-linking catalyst with the main components by means of the mixer (), the hot application of the mixed adhesive composition () onto a support ().

Process for hot application of a silylated adhesive composition

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 ().

Continuous gluing process of an adhesive composition with a gluing nozzle having an extrusion die with a relaxation volume

A subject of the present invention relates to a multilayer (or laminate) film, that can be used in the field of flexible wrapping, comprising at least 2 thin layers of material bonded together by a layer of an adhesive composition based on a styrene block copolymer. It also relates to a lamination process suitable for the manufacture of said film.

Multilayer film for flexible wrapping

The present invention is directed to a novel process for preparing an absorbent article, wherein the process comprises providing a first sheet layer (); conforming said first layer on a first roll C, whereby longitudinal corrugations are formed on the layer; conforming said corrugated layer () on a second roll C, whereby a pattern of pockets () is obtained; providing a pre-metered amount of SAP particulate material (); providing a second sheet layer () material and affixing it for sandwiching with the first sheet layer; and finishing the absorbent article.

Process for preparing an absorbent article

The present invention is directed to a novel process for manufacturing an absorbent article comprising the steps of: providing a first sheet layer (); providing an array of pockets () into said first sheet layer; providing a pre-metered amount of SAP particulate material (); said pre-metered amount of SAP material being delivered from a rotating delivering drum (), said drum having apertures () on its periphery corresponding to the array of pockets (), said pre-metered amount of SAP material being delivered from the inner part of said drum () through said apertures (); providing a second sheet layer () material and affixing it for sandwiching with the first sheet layer; finishing the absorbent article.

The present invention is directed to a liquid-absorbing article comprising:

Absorbent article and process for making it

The invention relates to a method for coating a substrate with a fluid. This method comprises the steps: (i) of supply of a substrate and of a yield point fluid; and (ii) of shearing of the fluid and of application of the fluid to the substrate, the fluid supplied comprising a solvent-free reactive polyurethane mixture.

Method for coating a substrate with a solvent-free yield point fluid

The invention relates to a coating device () comprising a coating tank () with an opening () and a coating roll (), in which the roll () faces the opening (). A further subject of the invention is a method for coating a substrate with a fluid comprising the steps of (i) supply of a substrate () and of a fluid, (ii) application of the fluid to the substrate () and (iii) shearing of the fluid by the substrate () set in motion in relation to the fluid.

Growing community of inventors

Cuts, France

Jean-Francois Chartrel