An object of this invention is to provide an adhesive composition that comprises a moisture-curable resin and a modified polyolefin and that achieves an excellent liquid state and excellent adhesion to polyolefin resin substrates. Provided is a moisture-curable adhesive resin composition comprising a moisture-curable resin (A) and a modified polyolefin resin (B), wherein the content of the modified polyolefin resin (B) is 2 parts by mass or more per 100 parts by mass of the moisture-curable resin (A).

Presently described are bio-based hot-melt adhesive compositions including rosin acids or derivatives thereof and an amphiphilic agent that provide adhesives with a high softening point, improved heat resistance, low melt viscosity, and compatibility with hydrocarbon compositions including polyolefins and waxes used in hot-melt adhesives.

Applying heat activatable adhesive to a substrate, the adhesive is solid at ambient temperature and can be melted at a temperature below its heat activation temperature wherein the adhesive formulation is supplied to a hot melt applicator where it is heated to above its melting point and below its activation temperature and the melt viscosity of the molten adhesive is controlled so that it can be ejected from the hot melt applicator onto a substrate to provide a coherent bead that adheres to the substrate and is dry to the touch on cooling and upon activation the adhesive is capable of expanding with a volume expansion greater than about 250%.

Compositions may include an EVA copolymer produced from ethylene, vinyl acetate, and one or more polar comonomers, wherein at least one of the one or more polar comonomers include an amine moiety. Methods may include preparing a polymer composition by adding ethylene, vinyl acetate and one or more polar comonomers to a reactor or extruder, wherein at least one of the one or more polar comonomers include an amine moiety; and reacting the ethylene, vinyl acetate and one or more comonomers to produce the polymer composition. Compositions may include an adhesive film composition that include at least one layer including a polymer produced from ethylene, vinyl acetate, and one or more polar comonomers, wherein at least one of the one or more polar comonomers include an amine moiety.

Disclosed are compositions which include an ethylene polymer derived from at least one polar monomer with one or more ester groups, and a rosin ester. The rosin ester can have a low hydroxyl number (e.g., a hydroxyl number seven or less), a low acid number (e.g., an acid number of ten or less), a relatively low PAN number (e.g., a PAN number less than twenty-five), a relatively high third moment or third power average molecular weight (Mz), (e.g., an Mz value in between 2500 and 12000 g/mol), a low sulfur content (e.g., a sulfur content lower than 600 ppm prior to antioxidant addition) or combinations thereof. The compositions can exhibit a high heat stress resistance (e.g., a heat stress pass temperature value higher than 52° C. or in between 48° C. and 60° C.) and/or improved viscosity stability and/or color stability upon thermal aging and/or improved compatibility.

The present invention provides an aqueous dispersion that enables production of a film having improved water resistance, tensile elastic modulus, and stress at break, and with which a decrease of strain at break can be reduced in the film. The present invention relates to an aqueous dispersion comprising an ethylene-vinyl alcohol copolymer (A) and a cellulose nanofiber, the ethylene unit content of the ethylene-vinyl alcohol copolymer (A) being 1 mol % or more and less than 20 mol %.

A polymer adhesive includes a polymer base comprising an ethylene and/or propylene copolymer and a crosslinking agent selected from the group consisting of hydroxyalkyl amides, melamines, and aziridines. A laminate includes a first substrate, a second substrate, and the polymer adhesive between the first substrate and the second substrate.

A polymer adhesive includes a polymer base comprising an ethylene and/or propylene copolymer and a crosslinking agent selected from the group consisting of hydroxyalkyl amides, melamines, and aziridines. A laminate includes a first substrate, a second substrate, and the polymer adhesive between the first substrate and the second substrate.

Provided is an adhesive composition having high holding power. Provided is an adhesive composition comprising a ring-opened copolymer containing a structural unit derived from a monocyclic olefin and a structural unit derived from a polycyclic olefin; and a tackifying resin.

This invention relates to a hot melt adhesive composition. The hot melt adhesive composition according to the present invention comprises at least one hydrogenated thermoplastic block copolymer with a melt index greater than or equal to 30 grams per 10 minutes at 190° C./2.16 kg; and at least one polyolefin with a melt viscosity less than or equal to 2000 cPs at 190° C. The hot melt adhesive composition according to the present invention can be applied at low temperature, has excellent T peel strength and low odor after being applied in the disposable products.