A latex composition contains a carboxy-modified conjugated diene polymer latex, a xanthogen compound, and a metal oxide.

A latex composition contains a carboxy-modified conjugated diene polymer latex, a xanthogen compound, and a metal oxide.

Provided is a modified hydrocarbon resin that provides a hot melt adhesive composition with low odor, excellent heat stability, and high adhesive properties. The modified hydrocarbon resin is obtained by hydrogenating a hydrocarbon resin comprising a plurality of specific monomeric unit in a specific range, and characterized in that: a degree of hydrogenation of the olefins, a degree of hydrogenation of the aromatic rings, a weight average molecular weight (Mw), a Z-average molecular weight (Mz), a ratio (Mz/Mw) of the Z-average molecular weight to the weight-average molecular weight, a Gardner color scale of a toluene solution of 50 mass %, and a difference between pre-hydrogenation and post-hydrogenation mixed aniline point (MMAP) are within the specific range.

Provided is a modified hydrocarbon resin that provides a hot melt adhesive composition with low odor, excellent heat stability, and high adhesive properties. The modified hydrocarbon resin is obtained by hydrogenating a hydrocarbon resin comprising a plurality of specific monomeric unit in a specific range, and characterized in that: a degree of hydrogenation of the olefins, a degree of hydrogenation of the aromatic rings, a weight average molecular weight (Mw), a Z-average molecular weight (Mz), a ratio (Mz/Mw) of the Z-average molecular weight to the weight-average molecular weight, a Gardner color scale of a toluene solution of 50 mass %, and a difference between pre-hydrogenation and post-hydrogenation mixed aniline point (MMAP) are within the specific range.

The object of the invention is a low-fogging adhesive tape for enveloping elongated objects, in particular a low-fogging wrapping tape for bundling cables in automobiles. The latter has a support and an adhesive coating on at least one side of the support. According to the invention, a synthetic-rubber-based coating is used as the adhesive coating.

The object of the invention is a low-fogging adhesive tape for enveloping elongated objects, in particular a low-fogging wrapping tape for bundling cables in automobiles. The latter has a support and an adhesive coating on at least one side of the support. According to the invention, a synthetic-rubber-based coating is used as the adhesive coating.

An adhesive composition containing a latex of a highly saturated nitrile rubber (A) which has ,-ethylenically unsaturated nitrile monomer units 10 to 55 wt %, conjugated diene monomer units 25 to 89 wt %, and ,-ethylenically unsaturated dicarboxylic acid monoester monomer units 1 to 20 wt % and has an iodine value of 120 or less and a polyvalent amine compound (B).

A tackifying resin includes a farnesene-based polymer having monomeric units derived from a farnesene monomer and one or more optional comonomers selected from the group consisting of dienes, branched mono-olefins, and vinyl aromatics and has a softening point greater than or equal to 80 degrees Celsius. A method of making the farnesene-based polymer includes combining a farnesene monomer and a solvent and optionally adding one or more comonomers selected from the group consisting of dienes, branched mono-olefins, and vinyl aromatics, to provide a monomer feed, and polymerizing the monomer feed by combining the monomer feed with a Friedel-Crafts catalyst in a vessel. The tackifying resin may be combined with an elastomer to form a hot melt adhesive composition.

A tackifying resin includes a farnesene-based polymer having monomeric units derived from a farnesene monomer and one or more optional comonomers selected from the group consisting of dienes, branched mono-olefins, and vinyl aromatics and has a softening point greater than or equal to 80 degrees Celsius. A method of making the farnesene-based polymer includes combining a farnesene monomer and a solvent and optionally adding one or more comonomers selected from the group consisting of dienes, branched mono-olefins, and vinyl aromatics, to provide a monomer feed, and polymerizing the monomer feed by combining the monomer feed with a Friedel-Crafts catalyst in a vessel. The tackifying resin may be combined with an elastomer to form a hot melt adhesive composition.

Provided is an adhesive composition for an optical use, including: a first isobutylene-isoprene-based rubber having a weight average molecular weight (Mw) of 100,000 g/mol to 1,000,000 g/mol; and a second isobutylene-isoprene-based rubber having a weight average molecular weight (Mw) of 5,000 g/mol to 100,000 g/mol, in which the first isobutylene-isoprene-based rubber and the second isobutylene-isoprene-based rubber each include a hydroxy group. Further, provided is an adhesive layer including a thermally cured product of the adhesive composition for optical use.