An encapsulant film is made from a composition comprising (A) a non-polar ethylene-based polymer having a density of 0.850 g/cc to 0.890 g/cc; (B) an organic peroxide; (C) a silane coupling agent; and (D) a co-agent comprising triallyl phosphate.

Provided are an ultra-low viscosity ethylene-butene copolymer which is a copolymer derived from ethylene and butene, wherein the ethylene-butene copolymer has a density of 0.874 to 0.900 g/cm.sup.3 and a melting point of 63 to 90° C., and a composition for a hot-melt adhesive including the same. The ethylene-butene copolymer according to the present disclosure may be rapidly melted at a certain melting point or higher and may provide a low processing temperature with a significantly low viscosity. In addition, the composition for a hot-melt adhesive according to the present disclosure includes the ethylene-butene copolymer, thereby having excellent thermal resistance with high shear adhesion failure temperature and peel adhesion failure temperature and securing both excellent cohesiveness and adhesive strength.

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 provides a composition. In an embodiment a composition is provided and includes: (A) an ethylene-based interpolymer having the following: (i) a density from 0.860 g/cc to 0.900 g/cc; and (ii) a melt viscosity, at 177° C., less than, or equal to, 50,000 mPa.Math.s; and (B) a rosin ester containing the following: (i) greater than, or equal to, 75 mol % aliphatic carbon, based on total moles of carbon in the rosin ester; and (ii) less than, or equal to, 3.0 mol % ester group carbon, based on total moles of carbon in the rosin ester.

The present disclosure provides a composition. In an embodiment a composition is provided and includes: (A) an ethylene-based interpolymer having the following: (i) a density from 0.860 g/cc to 0.900 g/cc; and (ii) a melt viscosity, at 177° C., less than, or equal to, 50,000 mPa.Math.s; and (B) a rosin ester containing the following: (i) greater than, or equal to, 75 mol % aliphatic carbon, based on total moles of carbon in the rosin ester; and (ii) less than, or equal to, 3.0 mol % ester group carbon, based on total moles of carbon in the rosin ester.

The present disclosure provides an article. The article includes a crosslinked foam composition, an adhesive layer, and a substrate composed of an olefin-based polymer. The crosslinked foam composition includes an ethylene/a-olefin multi-block copolymer, an ethylene/propylene/diene terpolymer (EPDM), optional silicone rubber, optional blend component selected from ethylene/aolefin random copolymer, ethylene-vinyl acetate copolymer (EVA), styrene-butadiene block copolymer, hydrogenated styrene-butadiene block copolymer, and combinations thereof, optional plasticizer, optional filler, and optional additive.

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

The invention relates to a hot-melt adhesive composition, comprising at least one polyolefin polymer at a content from 5 to 90% by weight; at least one branched polypropylene at a content from 0.1 to 10% by weight; at least one tackifying resin at a content from 0.1 to 60% by weight; optionally, at least one styrene block copolymer from 0 to 30% by weight; optionally, at least one plasticizer at a content from 0 to 30% by weight; optionally, at least one stabilizer at a content from 0 to 5% by weight; and optionally, at least one wax at a content from 0 to 30% by weight. The invention further relates to the use of a branched polypropylene for reducing stringing of a hot-melt adhesive composition.

The invention relates to a hot-melt adhesive composition, comprising at least one polyolefin polymer at a content from 5 to 90% by weight; at least one branched polypropylene at a content from 0.1 to 10% by weight; at least one tackifying resin at a content from 0.1 to 60% by weight; optionally, at least one styrene block copolymer from 0 to 30% by weight; optionally, at least one plasticizer at a content from 0 to 30% by weight; optionally, at least one stabilizer at a content from 0 to 5% by weight; and optionally, at least one wax at a content from 0 to 30% by weight. The invention further relates to the use of a branched polypropylene for reducing stringing of a hot-melt adhesive composition.