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.

The present invention relates to an adhesive composition, an adhesive film, a method of manufacturing the adhesive film and an organic electronic device (OED) that are used to encapsulate an organic electronic element. The adhesive composition can form an encapsulant layer having an excellent adhesive property, impact resistance, heat-protecting property and moisture blocking property, so that an OED that includes an element encapsulated with the adhesive composition can exhibit an excellent lifespan property and durability.

The present invention relates to an adhesive composition, an adhesive film, a method of manufacturing the adhesive film and an organic electronic device (OED) that are used to encapsulate an organic electronic element. The adhesive composition can form an encapsulant layer having an excellent adhesive property, impact resistance, heat-protecting property and moisture blocking property, so that an OED that includes an element encapsulated with the adhesive composition can exhibit an excellent lifespan property and durability.

A multi-layer plastic film as a carrier film for a glue layer, comprising a layer sequence of (a) an outer layer (a) based on a mixture of ) 3-15 wt % of an extrudable glue and ) 85-97 wt % of at least one C.sub.2-C.sub.8 olefin-alkyl acrylate copolymer, C.sub.2-C.sub.8 olefin-methacrylic acid copolymer and/or C.sub.2-C.sub.8 alkyl methacrylate copolymer, wherein the mixture of ) and ) must be compatible with each other, (b) a layer (b) of at least one polyolefin or one olefin copolymer, (c) a layer (c) of at least one polyolefin or one olefin copolymer, and optionally typical auxiliary substances, as a second outer layer, and composites of said carrier film and an adhesive layer.

Provided is an adhesive laminate and a method for making retroreflective tapes with the adhesive laminate. The adhesive laminate is coated and laminated on the conventional retroreflective substrate. The adhesive laminate comprises: a retroreflective substrate adhesive layer and a temporary carrier adhesive layer. The adhesive laminate may further comprise a cross-linking layer between the retroreflective substrate adhesive layer and the temporary carrier adhesive layer. The adhesive laminate has excellent adhesion to rubber articles. The conventional retroreflective substrate may be attached on the rubber articles firmly by the adhesive laminate. The adhesive laminate may not deform or be damaged during attachment process. The adhesive laminate also may not peel off from the rubber articles after use over time. Rubber articles with the adhesive laminate have lasting light-reflecting and alerting effects with enhanced safety.

Provided is an adhesive laminate and a method for making retroreflective tapes with the adhesive laminate. The adhesive laminate is coated and laminated on the conventional retroreflective substrate. The adhesive laminate comprises: a retroreflective substrate adhesive layer and a temporary carrier adhesive layer. The adhesive laminate may further comprise a cross-linking layer between the retroreflective substrate adhesive layer and the temporary carrier adhesive layer. The adhesive laminate has excellent adhesion to rubber articles. The conventional retroreflective substrate may be attached on the rubber articles firmly by the adhesive laminate. The adhesive laminate may not deform or be damaged during attachment process. The adhesive laminate also may not peel off from the rubber articles after use over time. Rubber articles with the adhesive laminate have lasting light-reflecting and alerting effects with enhanced safety.

A rubber composition of the present technology contains: 100 parts by mass of diene polymer that can be vulcanized by sulfur, from 0.5 parts by mass to 5 parts by mass of sulfur, and from 0.8 parts by mass to 17 parts by mass of hydroxy group-containing compound having a molecular weight of 200 or less.

A pressure sensitive adhesive sheet is provided, containing a substrate or a release material having thereon a resin layer including a resin part (X) containing as a main component a hydrocarbon resin having a carbon atom on a main chain of a structural unit, and a particle part (Y) consisting of fine particles containing silica particles, and at least a surface () of the resin layer being opposite to the side of the substrate or being opposite to the side which the release material is provided, having pressure sensitive adhesiveness, the resin layer containing a multilayer structure having a layer (X) and a layer (Y1) in this order in the thickness direction from the side of the surface (), in a measurement of an intensity ratio (Si/C) of a peak intensity (Si) derived from a silicon atom and a peak intensity (C) derived from a carbon atom with an energy dispersive X-ray analyzer in the thickness direction from the side of the surface () of the resin layer, the intensity ratio in the layer (X) being less than 0.10, and the intensity ratio in the layer (Y1) being 0.10 or more, the surface () having concave portions of irregular shapes.

A pressure sensitive adhesive sheet is provided, containing a substrate or a release material having thereon a resin layer including a resin part (X) containing as a main component a hydrocarbon resin having a carbon atom on a main chain of a structural unit, and a particle part (Y) consisting of fine particles containing silica particles, and at least a surface () of the resin layer being opposite to the side of the substrate or being opposite to the side which the release material is provided, having pressure sensitive adhesiveness, the resin layer containing a multilayer structure having a layer (X) and a layer (Y1) in this order in the thickness direction from the side of the surface (), in a measurement of an intensity ratio (Si/C) of a peak intensity (Si) derived from a silicon atom and a peak intensity (C) derived from a carbon atom with an energy dispersive X-ray analyzer in the thickness direction from the side of the surface () of the resin layer, the intensity ratio in the layer (X) being less than 0.10, and the intensity ratio in the layer (Y1) being 0.10 or more, the surface () having concave portions of irregular shapes.

The subject matter is a new curable composition comprising at least one hydroxyl-group containing resin, at least one nitroso-containing compound or at least one nitroso precursor compound, at least one hydrophopic silica and at least one blocked isocyanate, which provides excellent adhesion and steam resistance for rubber to substrate bonds, a process for bonding two substrates with this new curable composition and the corresponding article.