The present invention pertains to polyurethane-urea based optical adhesives for formation of optical film laminates, optically functional film laminates, and ophthalmic or eyeglass lenses employing the same and methods for producing the same.

The present invention is to provide a urethane adhesive composition which exhibits excellent heat-resistant adhesion after storage to resin. The present invention relates to a urethane adhesive composition including: a urethane prepolymer having an isocyanate group; an isocyanurate compound having an isocyanurate ring; a terpene compound having active hydrogen; and a vinyl silane coupling agent represented by Formula (A) below: (where in Formula (A), R.sup.1 and R.sup.3 each independently represent a monovalent hydrocarbon group, R.sup.2 represents a (n+1) valent hydrocarbon group, Vi represents —CH═CH.sub.2, m1 is from 1 to 3, m2 is from 1 to 3, m3 is from 0 to 2, m1+m2+m3 is 4, and n is 1 or greater). ##STR00001##

The present invention is to provide a urethane adhesive composition which exhibits excellent heat-resistant adhesion after storage to resin. The present invention relates to a urethane adhesive composition including: a urethane prepolymer having an isocyanate group; an isocyanurate compound having an isocyanurate ring; a terpene compound having active hydrogen; and a vinyl silane coupling agent represented by Formula (A) below: (where in Formula (A), R.sup.1 and R.sup.3 each independently represent a monovalent hydrocarbon group, R.sup.2 represents a (n+1) valent hydrocarbon group, Vi represents —CH═CH.sub.2, m1 is from 1 to 3, m2 is from 1 to 3, m3 is from 0 to 2, m1+m2+m3 is 4, and n is 1 or greater). ##STR00001##

The present invention relates to a moisture-crosslinkable composition comprising: at least one polymer (A) comprising at least one alkoxysilane group; at least 25% by weight of at least one carbonate filler (B) relative to the total weight of said composition; at least one compound chosen from bis(alkoxysilane)s or tri(alkoxysilane)s (C) having a molar mass ranging from 250 to 1000 g/mol; at least one crosslinking catalyst (D);
said composition being characterized in that it comprises a plasticizer content of less than or equal to 1% by weight relative to the total weight of the composition.

A present invention related to a method for manufacturing a dot bonding shoe insole using an adhesive resin containing hydrophobic nano-silica, including: melting adhesive resin made of any one selected from thermoplastic polyurethane (TPU) or ethylene vinyl acetate (EVA) containing hydrophobic nano-silica in the range of 0.2 to 5 phr and applying to the surface of the transfer roller in which the intaglio dot pattern is formed in a mesh shape in the shape of the shoe insole;

removing the adhesive resin applied other area than the intaglio dot pattern of the surface of the transfer roller;
transferring the adhesive resin applied to the intaglio dot pattern of the surface of the transfer roller to either one of the foam or the fabric;
bonding the foam and the fabric by compressing; and
cutting a shoe insole shape in a package in which the foam and the fabric are bonded.

A urethane-based adhesive composition includes a urethane prepolymer, a carbon black A having a dibutyl phthalate oil absorption number of 30 to 40 ml/100 g, a carbon black B having a dibutyl phthalate oil absorption number of 98 to 108 ml/100 g, a calcium carbonate C, a plasticizer D, a modified product E of an aliphatic diisocyanate, and a catalyst, and the urethane-based adhesive composition is configured to satisfy all of the following (1) to (6): (1) 25≤a≤35, (2) 55≤b≤75, (3) 197≤a+3b≤251, (4) 30≤c≤35, (5) 35≤d≤45, and (6) 9≤e≤13.

A novel primer composition contains aldimine and/or epoxy resins, a process of making such primer to be used in glass bonding adhesive kit.

A novel primer composition contains aldimine and/or epoxy resins, a process of making such primer to be used in glass bonding adhesive kit.

Disclosed is a polyurethane hot-melt adhesive including: a thermoplastic polyurethane that is a reactant of a raw material including a polymer polyol, a polyisocyanate, and a chain extender, wherein X−Y≥15, where X represents a temperature (° C.) at which the polyurethane hot-melt adhesive has a melt viscosity of 2.0×10.sup.3 Pa.Math.s, and Y represents a temperature at which the polyurethane hot-melt adhesive has a melt viscosity of 1.0×10.sup.5 Pa.Math.s, and the polyurethane hot-melt adhesive has a 100% modulus of 2.5 MPa or more.

A belt with a tensile cord embedded in an elastomeric body, having an adhesive composition impregnating the cord and coating the fibers. The adhesive composition is the reaction product of a polyisocyanate and a polyol, or a polyurethane prepolymer derived therefrom, and a polyamine curative and optionally additional polyol, and with optionally added plasticizer. At least one of the polyisocyanate, the prepolymer, and the polyamine are blocked with a blocking agent. The belt body may be of cast polyurethane, vulcanized rubber, or thermoplastic elastomer. The cord may have an adhesive overcoat.