The present invention relates to a composition for a pressure-sensitive adhesive comprising 100 parts by mass (non-volatile fraction) of a main agent comprising a mixture of a natural rubber latex and a synthetic rubber latex, 40 to 120 parts by mass of a rosin-based tackifier resin having a softening point of 130 to 135 C. and 1 to 15 parts by mass of low-molecular-weight polyisoprene having a weight-average molecular weight of 15,000 to 40,000.

One embodiment of the present invention provides an adhesive composition including, on the basis of the total weight thereof, 0.5 to 4.0% by weight of an epoxy compound, 1.0 to 8.0% by weight of an isocyanate compound, 1.7 to 22% by weight of a rubber latex, 1.0 to 8.0% by weight of a polyurethane dispersion (PUD) resin, 0.1 to 2.0% by weight of an amine compound, and 69 to 92% by weight of a solvent, wherein the epoxy compound and the isocyanate compound have a weight ratio of 1:1 to 1:10.

One embodiment of the present invention provides an adhesive composition including, on the basis of the total weight thereof, 0.5 to 4.0% by weight of an epoxy compound, 1.0 to 8.0% by weight of an isocyanate compound, 1.7 to 22% by weight of a rubber latex, 1.0 to 8.0% by weight of a polyurethane dispersion (PUD) resin, 0.1 to 2.0% by weight of an amine compound, and 69 to 92% by weight of a solvent, wherein the epoxy compound and the isocyanate compound have a weight ratio of 1:1 to 1:10.

One embodiment of the present invention provides an adhesive composition including, on the basis of the total weight thereof, 0.5 to 4.0% by weight of an epoxy compound, 1.0 to 8.0% by weight of an isocyanate compound, 1.7 to 22% by weight of a rubber latex, 1.0 to 8.0% by weight of a polyurethane dispersion (PUD) resin, 0.1 to 2.0% by weight of an amine compound, and 69 to 92% by weight of a solvent, wherein the epoxy compound and the isocyanate compound have a weight ratio of 1:1 to 1:10.

The tape includes a backing, a reactive layer on the backing, and a pressure sensitive adhesive on the reactive layer. The reactive layer includes sulfur and a rubber at least partially crosslinked with polysulfide bonds. The pressure sensitive adhesive includes a hydrocarbon elastomer that is at least partially crosslinked and a tackifying resin. The process includes applying a dispersion of the rubber and sulfur to the backing, drying the dispersion to provide the reactive layer, and applying a pressure sensitive adhesive composition comprising the hydrocarbon elastomer and the tackifying resin as a hot melt on the reactive layer to provide the tape.

The tape includes a backing, a reactive layer on the backing, and a pressure sensitive adhesive on the reactive layer. The reactive layer includes sulfur and a rubber at least partially crosslinked with polysulfide bonds. The pressure sensitive adhesive includes a hydrocarbon elastomer that is at least partially crosslinked and a tackifying resin. The process includes applying a dispersion of the rubber and sulfur to the backing, drying the dispersion to provide the reactive layer, and applying a pressure sensitive adhesive composition comprising the hydrocarbon elastomer and the tackifying resin as a hot melt on the reactive layer to provide the tape.

A sealant composition of the present invention includes a rubber component (A), a tackifier (B), and a plasticizer (C), in which the tackifier (B) has a softening point of 50 C. or higher, the plasticizer (C) has a dynamic viscosity at 40 C. of 2500 mm.sup.2/s or less, and a mass ratio of (C)/(B) of the plasticizer (C) to the tackifier (B) is 0.35 or more. Thus, the sealant composition can provide improved sealability, viscosity temperature dependency, and fluidity during storage of a tire.

A sealant composition of the present invention includes a rubber component (A), a tackifier (B), and a plasticizer (C), in which the tackifier (B) has a softening point of 50 C. or higher, the plasticizer (C) has a dynamic viscosity at 40 C. of 2500 mm.sup.2/s or less, and a mass ratio of (C)/(B) of the plasticizer (C) to the tackifier (B) is 0.35 or more. Thus, the sealant composition can provide improved sealability, viscosity temperature dependency, and fluidity during storage of a tire.

A method for sealing and inflating inflatable articles, in particular for sealing and inflating motor vehicle tires, wherein, by means of a compressor which is driven preferably by means of an electric motor, a sealing and pumping pressure is generated, wherein, by means of the sealing and pumping pressure, via a valve and distributor device for sealant and compressed gas and via compressed-air and sealant hoses between valve and distributor device and an entry valve or an inlet nozzle of the inflatable article, a sealant situated in a sealant vessel connected to the valve and distributor device is conveyed into the inflatable article and, at the same time, the inflatable article is inflated to a predefined operating pressure, wherein, by configuration of the corresponding parameters, of the sealant and of the device, in or downstream of the entry valve/the inlet nozzle, the sealant is at least partially atomized to form an aerosol by virtue of the sealant or the sealant-air mixture being converted, in the entry valve or in the inlet nozzle, into a turbulent flow with a Reynolds number R.sub.e22300.

A method for sealing and inflating inflatable articles, in particular for sealing and inflating motor vehicle tires, wherein, by means of a compressor which is driven preferably by means of an electric motor, a sealing and pumping pressure is generated, wherein, by means of the sealing and pumping pressure, via a valve and distributor device for sealant and compressed gas and via compressed-air and sealant hoses between valve and distributor device and an entry valve or an inlet nozzle of the inflatable article, a sealant situated in a sealant vessel connected to the valve and distributor device is conveyed into the inflatable article and, at the same time, the inflatable article is inflated to a predefined operating pressure, wherein, by configuration of the corresponding parameters, of the sealant and of the device, in or downstream of the entry valve/the inlet nozzle, the sealant is at least partially atomized to form an aerosol by virtue of the sealant or the sealant-air mixture being converted, in the entry valve or in the inlet nozzle, into a turbulent flow with a Reynolds number R.sub.e22300.