The sprayable olefin-based hot melt adhesive and absorbent articles comprising the adhesive are disclosed. The sprayable olefin-based hot melt adhesive is particularly suitable for spraying at low application temperatures. The sprayable low application temperature hot melt adhesives have high green strength, excellent bond strength and aging performance. Moreover, the sprayable low application temperature hot melt adhesives allows for thin bond lines without bleed-through and burn-through risks for heat-sensitive substrates.

The sprayable olefin-based hot melt adhesive and absorbent articles comprising the adhesive are disclosed. The sprayable olefin-based hot melt adhesive is particularly suitable for spraying at low application temperatures. The sprayable low application temperature hot melt adhesives have high green strength, excellent bond strength and aging performance. Moreover, the sprayable low application temperature hot melt adhesives allows for thin bond lines without bleed-through and burn-through risks for heat-sensitive substrates.

A hot melt adhesive composition that includes at least 35% polymer, from about 15% by weight, to no greater than 75% by weight propylene polymer derived from at least 50% by weight propylene and from 0 mole % to about 37.5% by weight of an alpha-olefin comonomer other than propylene, the propylene polymer exhibiting a heat of fusion of from about 5 Joules per gram (J/g) to 60 J/g, from 5% by weight to about 50% by weight ethylene alpha-olefin copolymer derived from at least 50% by weight ethylene and at least one alpha-olefin comonomer having at least three carbon atoms, the ethylene alpha-olefin copolymer having a density of no greater than 0.90 g/cm.sup.3, and from 18% by weight to about 37% by weight of a wax component that exhibits a melting point greater than 80° C. and a heat of fusion of at least 200 J/g.

A hot melt adhesive composition that includes at least 35% polymer, from about 15% by weight, to no greater than 75% by weight propylene polymer derived from at least 50% by weight propylene and from 0 mole % to about 37.5% by weight of an alpha-olefin comonomer other than propylene, the propylene polymer exhibiting a heat of fusion of from about 5 Joules per gram (J/g) to 60 J/g, from 5% by weight to about 50% by weight ethylene alpha-olefin copolymer derived from at least 50% by weight ethylene and at least one alpha-olefin comonomer having at least three carbon atoms, the ethylene alpha-olefin copolymer having a density of no greater than 0.90 g/cm.sup.3, and from 18% by weight to about 37% by weight of a wax component that exhibits a melting point greater than 80° C. and a heat of fusion of at least 200 J/g.

A hot melt adhesive composition that includes at least 35% polymer, from about 15% by weight, to no greater than 75% by weight propylene polymer derived from at least 50% by weight propylene and from 0 mole % to about 37.5% by weight of an alpha-olefin comonomer other than propylene, the propylene polymer exhibiting a heat of fusion of from about 5 Joules per gram (J/g) to 60 J/g, from 5% by weight to about 50% by weight ethylene alpha-olefin copolymer derived from at least 50% by weight ethylene and at least one alpha-olefin comonomer having at least three carbon atoms, the ethylene alpha-olefin copolymer having a density of no greater than 0.90 g/cm.sup.3, and from 18% by weight to about 37% by weight of a wax component that exhibits a melting point greater than 80° C. and a heat of fusion of at least 200 J/g.

The present disclosure relates to polyolefin-based compositions made from or containing (A) a butene-1 polymer grafted with an unsaturated monomer, (B) a second polyolefin polymer, and (C) an ethylene-propylene elastomer. In some embodiments, the polyolefin-based composition is further made from or contains an additives composition. In additional embodiments, the polyolefin-based composition is made from or contains a heterophasic polypropylene copolymer.

The present disclosure relates to polyolefin-based compositions made from or containing (A) a butene-1 polymer grafted with an unsaturated monomer, (B) a second polyolefin polymer, and (C) an ethylene-propylene elastomer. In some embodiments, the polyolefin-based composition is further made from or contains an additives composition. In additional embodiments, the polyolefin-based composition is made from or contains a heterophasic polypropylene copolymer.

A sealing film which seals between a metal first base and a second base, the sealing film including: a first adhesive layer that mainly contains an acid-modified polyolefin and adheres to the first base; a second adhesive layer that mainly contains a polyolefin and adheres to the second base; and a base material layer provided between the first adhesive layer and the second adhesive layer, in which the base material layer contains (A), (B), and (C), a ratio [(A)/(B)+(C)] is 90/10 to 20/80, a content percentage of (B) with respect to a total amount of (A), (B), and (C) is 5% by mass or more and 70% by mass or less, and a content percentage of (C) with respect to the total amount of (A), (B), and (C) is 5% by mass or more and 70% by mass or less.

A sealing film which seals between a metal first base and a second base, the sealing film including: a first adhesive layer that mainly contains an acid-modified polyolefin and adheres to the first base; a second adhesive layer that mainly contains a polyolefin and adheres to the second base; and a base material layer provided between the first adhesive layer and the second adhesive layer, in which the base material layer contains (A), (B), and (C), a ratio [(A)/(B)+(C)] is 90/10 to 20/80, a content percentage of (B) with respect to a total amount of (A), (B), and (C) is 5% by mass or more and 70% by mass or less, and a content percentage of (C) with respect to the total amount of (A), (B), and (C) is 5% by mass or more and 70% by mass or less.

A plasticizer may be suitable for resins and contain an amorphous propylenic polymer having a weight-average molecular weight (Mw), measured according to a GPC method, in a range of from 5,000 to 30,000 and having a molecular weight distribution (Mw/Mn) of 3.0 or less. The amorphous propylenic polymer may be a propylene homopolymer