Abstract: A hot melt adhesive composition comprises a polypropylene homopolymer having a DSC melting point of less than 100° C.; a butene-based copolymer; and a plasticizer. The butene-based copolymer may comprise a butene-rich amorphous poly-alpha olefin, such as a butene-propylene copolymer, or a semi-crystalline copolymer, such as a butene-ethylene copolymer. The hot melt adhesive is especially useful for bonding substrates which swell or elongate significantly in use. Such uses include adhering superabsorbent polymers to a substrate or adhering together two substrates at least one of which having superabsorbent polymers, such as the top and bottom layer of an absorbent core of a disposable hygiene article, such as a diaper, feminine sanitary napkin, and adult incontinence pad. The hot melt adhesive composition, which does not contain a tackifier, demonstrates suitable elongation at break and stress at yield, with a sufficiently low viscosity, to stabilize an absorbent core having superabsorbent polymers.

Abstract: Hot melt adhesive composition comprising: —from 30% to 55% of a composition (A) consisting of 2 copolymers of propylene and ethylene (A1) and (A2), with Mw of less than 100,000 Da, wherein: —(A1) is an essentially amorphous copolymer, with a DSC melt enthalpy of 10 less than 30 J/g; —(A2) is a semicrystalline copolymer with a DSC melt enthalpy of more than 30 J/g; and —the ratio:weight of (A2)/weight of (A1) is from 0.2 to 1.5; —from 20% to 50% of a tackifying resin (B); and 1—from 2% to 25% of a plasticizer (C) consisting of a liquid polybutene oligomer. 2) Process of manufacturing an assembly product, preferably a disposable nonwoven absorbent article, implementing said hot melt adhesive composition.

Abstract: 1) Hot melt adhesive composition comprising: a) from 5% to 50% of a thermoplastic polymer (A) selected from styrene block copolymers and polyolefins; b) from 15% to 60% of a tackifying resin (B); c) from 5% to 30% of a plasticizer (C); and d) from 0.1% to 10% of a salt (D) of a hydroxylated fatty acid comprising from 8 to 24 carbon atoms. 2) Process of manufacturing a laminate, preferably a disposable nonwoven absorbent article, implementing the hot melt adhesive composition. 3) Process for cleaning the laminating device fouled by solid deposits of the hot melt adhesive composition, comprising their manual removal by the operators at room temperature.

Abstract: The present invention relates to a hot-melt adhesive composition comprising at least one particular mixture of SBC, at least one tackifying resin, at least one wax, and at least one plasticizer. The present invention also relates to a laminate comprising the hot-melt adhesive composition according to the invention that can be used to manufacture disposable hygiene articles.

Abstract: The present invention relates to a hot melt adhesive composition comprising at least one particular aldehyde scavenger, and the use of said aldehyde scavenger(s) to remove or reduce the volatile organic compound(s) (VOC), particularly volatile aldehyde(s) of a hot melt adhesive composition. The hot melt adhesive compositions according to the invention emit low odor during and after their manufacture and application, and are thus particularly useful to manufacture low odor disposable nonwoven absorbent articles.

Abstract: The present invention relates to a hot-melt adhesive composition comprising a propylene homopolymer, an alpha-olefin copolymer, a carboxylic acid- and/or anhydride-functionalized olefin compound and a tackifying resin. The present invention also relates to a laminate comprising the hot-melt adhesive composition according to the invention that can be used in disposable hygiene articles.

Abstract: The present invention relates to a hot-melt adhesive composition comprising at least one particular mixture of SBC, at least one tackifying resin, at least one wax, and at least one plasticizer. The present invention also relates to a laminate comprising the hot-melt adhesive composition according to the invention that can be used to manufacture disposable hygiene articles.

Abstract: The invention relates to a method for the melted production, especially by reactive extrusion, of block copolyamide comprising at least one aliphatic polyamide block and at least one semi-aromatic block, especially wherein the aromatic group has at least one hydroxyl or sulfonate function. The invention also relates to the block copolyamide that can be produced by said method; to a composition comprising the block copolyamide; to granules comprising such a copolyamide or such a composition; to a method for producing an item from a copolyamide or a composition of said copolyamide; and to uses of the copolyamide.

Abstract: The present invention relates to a hot melt adhesive composition comprising at least one particular aldehyde scavenger, and the use of said aldehyde scavenger(s) to remove or reduce the volatile organic compound(s) (VOC), particularly volatile aldehyde(s) of a hot melt adhesive composition. The hot melt adhesive compositions according to the invention emit low odor during and after their manufacture and application, and are thus particularly useful to manufacture low odor disposable nonwoven absorbent articles.

Abstract: The present invention relates to a hot-melt adhesive composition comprising a propylene homopolymer, an alpha-olefin copolymer, a carboxylic acid- and/or anhydride-functionalized olefin compound and a tackifying resin. The present invention also relates to a laminate comprising the hot-melt adhesive composition according to the invention that can be used in disposable hygiene articles.

Abstract: The invention relates to a method for the melted production, especially by reactive extrusion, of block copolyamide comprising at least one aliphatic polyamide block and at least one semi-aromatic block, especially wherein the aromatic group has at least one hydroxyl or sulfonate function. The invention also relates to the block copolyamide that can be produced by said method; to a composition comprising the block copolyamide; to granules comprising such a copolyamide or such a composition; to a method for producing an item from a copolyamide or a composition of said copolyamide; and to uses of the copolyamide.