A composition includes an epoxy-based curable adhesive having at least one an epoxy resin modified acrylonitrile-butadiene copolymer and at least one thermoplastic elastomer. The at least one thermoplastic elastomer is present in the curable adhesive as a penetrating polymer network. Further, an expandable article is composed of the composition, a reinforcing element includes a support and an expandable article, a method for reinforces cavities of structural components, and the composition is used as a shape memory material.

A composition includes an epoxy-based curable adhesive having at least one an epoxy resin modified acrylonitrile-butadiene copolymer and at least one thermoplastic elastomer. The at least one thermoplastic elastomer is present in the curable adhesive as a penetrating polymer network. Further, an expandable article is composed of the composition, a reinforcing element includes a support and an expandable article, a method for reinforces cavities of structural components, and the composition is used as a shape memory material.

A universal adhesion promoter contains a compound based on polybutadiene having at least one repeat unit selected from the following divalent radicals:

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An adhesive composition of general use is described, and particularly suitable for welding plastic parts, in the form of a two-component composition. The first of the two components being a cyanoacrylate based glue, and the second of the two components includes a blend, in powder form, of a polymeric origin component and an organic origin component.

The objective of the present invention is to provide a derivative of polybutadiene suitable as a material of a curable composition for obtaining a cured product having high shearing stress. The present invention provides: a silylated polybutadiene characterized by containing a repeating unit represented by formula (I) (in the formula: R.sup.1, R.sup.2, and R.sup.3 each independently represents an unsubstituted or substituted aryl group, an alkyl group, or an aralkyl group. Among R.sup.1 to R.sup.3, at least one of R.sup.1 to R.sup.3 is an aryl group or aralkyl group); a curable composition characterized by containing the silylated polybutadiene and a polymerization initiator; and a cured product obtained by curing the curable composition. ##STR00001##

The objective of the present invention is to provide a derivative of polybutadiene suitable as a material of a curable composition for obtaining a cured product having high shearing stress. The present invention provides: a silylated polybutadiene characterized by containing a repeating unit represented by formula (I) (in the formula: R.sup.1, R.sup.2, and R.sup.3 each independently represents an unsubstituted or substituted aryl group, an alkyl group, or an aralkyl group. Among R.sup.1 to R.sup.3, at least one of R.sup.1 to R.sup.3 is an aryl group or aralkyl group); a curable composition characterized by containing the silylated polybutadiene and a polymerization initiator; and a cured product obtained by curing the curable composition. ##STR00001##

A pneumatic tire includes: an inner liner having a thermoplastic resin film, a carcass, and an adhesive layer disposed between the inner liner and the carcass, in which the dynamic storage modulus E's at −20° C. of the thermoplastic resin film, the adhesive layer, and the carcass are defined as E.sub.1′, E.sub.2′, and E.sub.3′, respectively, and the relationship among E.sub.1′, E.sub.2′, and E.sub.3′ satisfies E.sub.1′>E.sub.2′>E.sub.3′. This pneumatic tire has excellent anti-crack property in a low-temperature environment of the inner liner.

A pneumatic tire includes: an inner liner having a thermoplastic resin film, a carcass, and an adhesive layer disposed between the inner liner and the carcass, in which the dynamic storage modulus E's at −20° C. of the thermoplastic resin film, the adhesive layer, and the carcass are defined as E.sub.1′, E.sub.2′, and E.sub.3′, respectively, and the relationship among E.sub.1′, E.sub.2′, and E.sub.3′ satisfies E.sub.1′>E.sub.2′>E.sub.3′. This pneumatic tire has excellent anti-crack property in a low-temperature environment of the inner liner.

A large V-belt includes an endless rubber belt body including an adhesive rubber layer and a cord embedded in the adhesive rubber layer of the belt body. The large V-belt has a belt thickness of 15 mm or more and the belt width of 10 mm or more at the center, in a belt thickness direction, of a cord embedded position. The belt body further includes reinforced rubber layers made of a rubber composition having a type A durometer hardness of 92 or more, the reinforced rubber layers being stacked on a belt inner side and/or a belt outer side of the adhesive rubber layer in the belt thickness direction.

A curable composition includes a polyol component comprising one or more polyols; a functional butadiene component; and a thermally conductive filler. The thermally conductive filler is present in an amount of at least 20 wt. %, based on the total weight of the curable composition. The curable composition has, upon curing, a thermal conductivity of at least 0.5 W/(mK).