Abstract: A self-adhesive article comprises an adhesive layer comprising a crosslinked adhesive composition, which comprises at least one polysilylated polymer having a number-average molar mass (Mn) of at least 20000 g/mol, wherein the at least one polysilylated polymer comprises a polyether and/or polyurethane main chain and at least two hydrolysable silylated end groups, said silylated end groups being attached to the main chain of the polymer by a urethane or ether function (referred to as a connector group); at least one tackifying resin having an average hydroxyl number of less than or equal to 100; and at least one crosslinking catalyst, excluding any monosilylated polymer.

Abstract: The present invention relates to a pressure sensitive hot melt adhesive, particularly to a pressure sensitive hot melt positioning adhesive for use on feminine sanitary pads or adult incontinent products having improved peel values on fabrics made from Lyocell fibers, particularly eucalyptus-based Lyocell fibers.

Abstract: The present invention provides a process for the synthesis of silylated polyurethanes, comprising three sequential steps, a step (i) of preparing NCO-terminated polyurethane, a step (ii) of partial grafting of the NCO functions with silane functions and a step (iii) of total grafting of the residual NCO functions with functions that react with the NCO functions by means of polyfunctional compounds. The present invention also provides a silylated polyurethane composition that can be obtained by means of the process according to the invention, an adhesive composition comprising said silylated polyurethane composition and a self-adhesive item obtained from the adhesive composition according to the invention.

Abstract: A multicomponent adhesive composition comprises a composition A and a composition B. Composition A comprises at least one silyl polymer comprising at least one hydrolyzable alkoxysilane group and at least one tackifying resin. Composition B comprises at least one catalyst and at least one compound C chosen from a compound C1 with a number-average molecular mass ranging from 300 g/mol to 500 000 g/mol; and a compound C2 with a vapor pressure at 20° C. of greater than or equal to 0.08 kPa; and mixtures thereof. The composition A:composition B mass ratio ranges from 99.98:0.02 to 60:40. The total content of catalyst ranges from 0.01% to 10% relative to the total weight of said adhesive composition.

Abstract: The present invention relates to a hot melt adhesive composition having an enthalpy of crystallization below 5 J/g and comprising: a) at least 60% by weight of a composition a) comprising: —at least one copolymer A having a needle penetration higher than 15 dmm; —at least (co)polymer B having a needle penetration lower than 15 dmm; b) from 0% to 30% by weight of at least one tackifying resin.

Abstract: A hot-melt adhesive composition comprises a mixture of silylated polymers, a tackifying resin and a catalyst, in specific contents, having self-adhesive properties after crosslinking to moisture. A self-adhesive article comprises a support layer and at least one self-adhesive layer obtained after crosslinking to the moisture in the adhesive composition according to the invention. The self-adhesive article can be used to bond low-energy substrates, in particular plastic substrates, notably thermoplastic substrates having low surface energy.

Abstract: 1) A heat-crosslinkable adhesive composition, comprising: at least one polymer (A) comprising a hydrolyzable alkoxysilane group; at least one tackifying resin (B); at least one silsesquioxane resin (C); and at least one crosslinking catalyst (D). 2) A self-adhesive article comprising a support layer coated with a self-adhesive layer consisting of the adhesive composition in the crosslinked state.

Abstract: The invention relates to a process for hot application of an adhesive composition (80) on a support (96), by means of a system comprising: a nozzle (50) for applying the adhesive composition (80), a line (88) for supplying the nozzle (50) with the adhesive composition (80) to be applied in fluid form, a mixer (30) positioned in the line (88) for the homogeneous mixture of the main components of the adhesive composition before its application; the applied adhesive composition (80) 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 (88) 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 (30), the hot application of the mixed adhesive composition (80) onto a support (96).

Abstract: A process for hot application of an adhesive composition (80) on a support (96), by means of a nozzle (50) applying the adhesive composition (80), a line (88) supplying the nozzle (50) with the adhesive composition (80) to be applied in fluid form, a mixer (30) positioned in the line (88) for the homogeneous mixture of the main components of the adhesive composition before its application; the applied adhesive composition (80) including a silylated prepolymer, a compatible tackifying resin; the adhesive composition having a cross-linking catalyst; the process involving: supplying the line (88) with the silylated prepolymer separated from the cross-linking catalyst, the mixing of the cross-linking catalyst with the main components by the mixer (30), the hot application of the mixed adhesive composition (80) onto a support (96).

Abstract: 1) Adhesive composition comprising at least one crosslinkable silylated polymer (A) and a catalytic composition (B) comprising: a tertiary amine (C) with a pKa of greater than 11 and an organometallic compound (D) obtained by reacting a metal alkoxide (D1) with an oxime (D2). 2) Corresponding catalytic composition (B).

Abstract: The present invention relates to a multicomponent adhesive composition comprising: a composition A comprising: at least one silyl polymer comprising at least one hydrolyzable alkoxysilane group; at least one tackifying resin; a composition B comprising: at least one catalyst; at least one compound C chosen from: a compound C1 with a number-average molecular mass ranging from 300 g/mol to 500 000 g/mol; and a compound C2 with a vapor pressure at 20° C. of greater than or equal to 0.08 kPa; and mixtures thereof; the composition A:composition B mass ratio ranging from 99.98:0.02 to 60:40, the total content of catalyst ranging from 0.01% to 10% relative to the total weight of said adhesive composition.

Abstract: The present invention relates to: a hot-melt adhesive composition comprising a mixture of silylated polymers, a tackifying resin and a catalyst, in specific contents, having self-adhesive properties after crosslinking to moisture; a self-adhesive article comprising a support layer and at least one self-adhesive layer obtained after crosslinking to the moisture in the adhesive composition according to the invention; and the use thereof to bond low-energy substrates, in particular plastic substrates, notably thermoplastic substrates having low surface energy.

Abstract: The present invention relates to the bonding of low-surface-energy substrates, in particular plastic substrates, especially thermoplastic low-surface-energy substrates. In particular, the present invention relates to a specific hot melt adhesive composition having self-adhesive properties after moisture crosslinking, as well as a self-adhesive article such as a multilayer system, intended for that purpose.

Abstract: The present invention provides a process for the synthesis of silylated polyurethanes, comprising three sequential steps, a step (i) of preparing NCO-terminated polyurethane, a step (ii) of partial grafting of the NCO functions with silane functions and a step (iii) of total grafting of the residual NCO functions with functions that react with the NCO functions by means of polyfunctional compounds. The present invention also provides a silylated polyurethane composition that can be obtained by means of the process according to the invention, an adhesive composition comprising said silylated polyurethane composition and a self-adhesive item obtained from the adhesive composition according to the invention.

Abstract: Two-component lamination adhesive, having a —NCO component obtained by reacting a polyisocyanate with a composition of diols, a multilayer film comprising an adhesive layer composed of said lamination adhesive, a process for the preparation of said film, and use of said film in the manufacture of flexible packagings.

Abstract: The present invention relates to a polyurethane-based two-component adhesive composition. The invention also relates to the manufacture of membrane-type filtration cartridges using the two-component adhesive composition according to the invention.

Abstract: 1) Process for preparing a poly(urea-urethane) comprising blocks of polyurethane-polyether and polyurethane-polyester type, two blocks of the same type each being connected to an alkoxysilane end group via a urea function, said process comprising: (i) the reaction of a polyether polyol A1 with a stoichiometric excess of a diisocyanate B(i); and then (ii) the reaction of the polyurethane produced in step (i) with a stoichiometric excess of a polyester polyol A2; and then (iii) the reaction of the polyurethane produced in step (ii) with a stoichiometric excess of a diisocyanate B(iii); and then (iv) the reaction of the polyurethane produced in step (iii) with a stoichiometric amount of an aminosilane C. 2) Poly(urea-urethane) formed via said process. 3) Corresponding adhesive composition, also comprising a crosslinking catalyst. 4) Process for assembling two substrates using said composition.

Abstract: The present invention relates to a self-adhesive article comprising a support layer of foam or similar type and an adhesive layer obtained by cross-linking an adhesive composition. The present invention also relates to a mixture of at least two polymers suitable for use for the manufacture of the self-adhesive article as well as an adhesive composition comprising said mixture of at least two polymers according to the invention.

Abstract: The present invention relates to a self-adhesive article comprising a support layer of foam or similar type and an adhesive layer obtained by cross-linking an adhesive composition. The present invention also relates to a mixture of at least two polymers suitable for use for the manufacture of the self-adhesive article as well as an adhesive composition comprising said mixture of at least two polymers according to the invention.

Abstract: Heat-curable adhesive composition: (a) a polyurethane composition (A) of formula: (i) in which R1 is a hydrocarbon-based radical; R2 is a polyester block; R3 is a linear C1-C3 alkylene radical; R4 and R5 are a C1-C4 alkyl; m is an integer such that the molar mass of the said polyurethanes is 900-27 000 Da; p=0, 1 or 2; obtained by producing polyester diols by polycondensation of: (i) dimerized fatty acids with an acid number of 190-200 mg KOH/g with a C2-C44 diol optionally having O or S; or (ii) dimerized fatty alcohols with a hydroxyl number of 200-220 mg KOH/g with a C4-C44 dicarboxylic acid optionally having O or S; (b) 22-62% of a compatible tackifying resin (B); and (c) 0.01-3% of a crosslinking catalyst (C). Self-adhesive support obtained by preheating the adhesive composition, coating onto a support layer and then curing. Manufacture of self-adhesive labels and/or tapes.