The present disclosure relates to self-sealing tires, a process for making said self-sealing tires and the use of a silicone composition cured via a condensation cure chemistry to form a self-sealing layer designed to function as both (i) a self-sealing tire puncture material, i.e., to seal puncture holes in the tread region of tires if/when punctured by a foreign body and (ii) as an adhesive for sound-absorbing foams adapted to reduce the noise generated by tires during travel.

A method for increasing the adhesion between the first surface of a first web-type material and a first surface of a second web-type material, the first web-type material and the second web-type material being supplied to a lamination nip continuously and with the same direction of the web. In said nip, the first surface of the first web-type material and of the second web-type material are laminated together and both first surfaces are treated with a plasma over the whole surface. The lamination nip is formed by a pressure roller and a counter-pressure roller and at least one of the surfaces of the rollers or both are equipped with a dielectric. The plasma or the corona is produced by a nozzle. The first web-type material comprises an adhesive compound layer arranged in the first web-type material such as to form the first surface of the first web-type material.

Methods for forming a TPE-skinned composite include forming a skin layer having at least one surface and having a thermoplastic elastomer and an adhesive promoting agent; providing a foam layer; and forming the foam layer onto the said surface of the skin layer to form the TPE-skinned composite. Optional additives such as an organo-silane compound may be added to further improve the adhesion between the skin layer and the foam. The present disclosure also provides a TPE-skinned composite including a skin layer having a thermoplastic elastomer present in an amount of greater than 90 wt. %; and an adhesive promoting agent present in an amount of from 0.5 wt. % to 10 wt. % based upon the total weight of the skin layer.

To provide a polyrotaxane composite formed body produced by strong bonding between a crosslinked polyrotaxane formed body and an elastomer formed body without intervention of an adhesive.

Provided is a method for producing a polyrotaxane composite formed body, the method including subjecting a surface of a crosslinked polyrotaxane formed body and a surface of an elastomer formed body to plasma treatment, and pressure joining the treated surfaces together, to thereby bond the formed bodies. Also provided is a polyrotaxane composite formed body including a crosslinked polyrotaxane formed body and an elastomer formed body, wherein these formed bodies are directly bonded together without being intermingled with each other in the absence of an adhesive layer between the formed bodies, an oxygen-rich layer is present between the bonding surfaces of the formed bodies, and the formed bodies exhibit a peel strength of 1 N/m or more.

Polybenzoxazine comprises repeat units which comprise at least one unit corresponding to the formulae (I) or (II): ##STR00001##
in which Z.sub.1 and Z.sub.2, which are identical or different, represent an at least divalent, aliphatic, cycloaliphatic or aromatic bonding group comprising at least one carbon atom and optionally at least one heteroatom selected from O, S, N and P. Such a polybenzoxazine may be used as a metal-adhesive layer, in particular for the adhesive bonding of a metal substrate, in particular made of carbon steel, to a rubber.

A water-based adhesive film-forming cover composition including: (i) at least one film forming polymer; (ii) at least one lower crystallinity first polynitroso compound; (iii) at least one higher crystallinity second polynitroso compound; (iv) at least one crosslinking agent; and (v) water as a carrier liquid; a bonding system including a combination of: (a) a water-based primer component; and (b) the above water-based cover component; a process for manufacturing the above bonding system; and a process of manufacturing bonded article with the above bonding system. A bonded article, having a bonding line made from the above bonding system disposed between metal and rubber substrates, exhibits excellent stability against an aqueous urea-solution at temperatures of up to about 95° C.

Provided is a vulcanized rubber surface treatment agent that enables firm adhesion between vulcanized rubbers without heating and has little effect on rubber deterioration. The vulcanized rubber surface treatment agent is used for adhering vulcanized rubbers to each other, which is an aqueous solution of hypochlorous acid having a pH value of 2 or more and 7 or less and an effective chlorine concentration of 100 ppm or more and 13000 ppm or less.

The invention relates to a textile bonding composition comprising a salt of lignosulfonate, an aldehyde hardener thereof, and an elastomer latex. The lignosulfonate salt may be sodium, potassium, magnesium, ammonium, or calcium lignosulfonate. The invention also relates to the use of such a composition for imparting adhesion properties to a reinforcement textile, with regard to a rubber, a reinforcement textile, in particular yarn, cord or textile structure, at least partially coated and/or impregnated with this composition, and a part made of rubber or comprising a rubber, in which the rubber comprises at least one reinforcement textile, on the surface and/or integrated inside the rubber.

An adhesive composition is comprised of a film forming polymer, (ii) a lower crystallinity polynitroso compound, (e.g., poly-(1,4-phenylyenazine-N,N-dioxide)), (iii) a higher crystallinity polynitroso compound (e.g., poly-(1,4-phenylyenazine-N,N-dioxide)), and (iv) a carrier liquid. The composition is useful in bonding metal and rubber to make, for example, components to damp noise, vibration or harshness.

The adhesive sheet for bonding an unvulcanized rubber to a metal, including a base cloth layer impregnated with a solvent dispersed type vulcanization adhesive having reactivity with the unvulcanized rubber; and an adhesive layer having reactivity with the metal.