Abstract: A tire has a coating with a quadlayer or multiple quadlayers, and a method produces the same. In an embodiment, the method for coating a rubber substrate includes exposing the rubber substrate to a first cationic solution to produce a first cationic layer on the rubber substrate. The method also includes exposing the first cationic layer to a first anionic solution to produce a first anionic layer on the first cationic layer. In addition, the method includes exposing the first anionic layer to a second cationic solution to produce a second cationic layer on the first anionic layer. The method further includes exposing the second cationic layer to a second anionic solution to produce a second anionic layer on the second cationic layer. A quadlayer includes the first cationic layer, the first anionic layer, the second cationic layer, and the second anionic layer. The coating includes the quadlayer.

Abstract: A barrier layer is provided for an inflatable article for impeding the flow of inflation gas through the inflatable article. The barrier layer may be constructed of a material that is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (phr), between 1 phr and 40 phr of a chlorosulfonated polyethylene rubber, between 60 phr and 99 phr of a butyl rubber and a sulfur curing system.

Abstract: A barrier layer for impeding the flow of inflation gas through an inflatable article, the barrier layer constructed of a material that is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (pbr) at least 50 phr of a primary elastomer selected from at least one of a halogenated butyl rubber or a polymeric halogenated rubber comprising C4 to C7 isooleiln derived units, para-alkylstyrene derived units and para-(haloalkylstyrene) derived units. The rubber composition may further include between 0 phr and 50 phr of a secondary diene elastomer and a platy filler. Additionally the rubber composition includes 1,3-phenylene dimaleimide and is cured with a sulfur curing system, which includes an accelerator.

Abstract: A barrier layer is provided for an inflatable article for impeding the flow of inflation gas through the inflatable article. The barrier layer may be constructed of a material that is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (phr), between 1 phr and 40 phr of a chlorosulfonated polyethylene rubber, between 60 phr and 99 phr of a butyl rubber and a sulfur curing system.

Abstract: An elastomeric substrate has a material diffusion harrier, and a method produces the same. In an embodiment, a method for producing a material diffusion barrier on an elastomeric substrate includes exposing the elastomeric substrate to a cationic solution to produce a cationic layer on the elastomeric substrate. The method also includes exposing the cationic layer to an anionic solution to produce an anionic layer on the cationic layer. The layer includes the cationic layer and the anionic layer. The layer comprises the material diffusion barrier.

Abstract: A tire has a coating with a quadlayer or multiple quadlayers, and a method produces the same. In an embodiment, the method for coating a rubber substrate includes exposing the rubber substrate to a first cationic solution to produce a first cationic layer on the rubber substrate. The method also includes exposing the first cationic layer to a first anionic solution to produce a first anionic layer on the first cationic layer. In addition, the method includes exposing the first anionic layer to a second cationic solution to produce a second cationic layer on the first anionic layer. The method further includes exposing the second cationic layer to a second anionic solution to produce a second anionic layer on the second cationic layer. A quadlayer includes the first cationic layer, the first anionic layer, the second cationic layer, and the second anionic layer. The coating includes the quadlayer.

Abstract: Embodiments include inflatable articles that include an interior surface adapted for being in contact with the inflation gas, the interior surface coated with a parylene barrier. The parylene barrier may be formed of parylene N, parylene C, parylene D, another substituted parylene or combinations thereof. In particular embodiments, the inflatable article is a tire. Other embodiments include inflatable articles having composite layers, wherein at least two of the composite layers include surfaces that interface with one another and a parylene coating applied to at least one of the interfacing surfaces.

Abstract: Tire components including bead area components and sidewall supports for a run-flat pneumatic tire that are constructed of a material based upon a cross-linkable rubber composition. The cross-linkable rubber composition includes, per 100 parts by weight of rubber (phr)* between 10 phr—and 90 phr—of a polyisoprene rubber and between 10 phr—and 90 phr of a polybutadiene rubber. The rubber composition further includes between 60 phr and 100 phr of a thermal carbon black having a nitrogen surface area of between 5 m2/g and 15 m2/g and a DBP absorption of between 30 cm3/100 g and 55 cm3/100 g. The rubber composition is cured with a sulfur curing system.

Abstract: A barrier layer is provided for impeding the flow of inflation gas through an inflatable article, the barrier layer constructed of a material that is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (phr), between 50 phr and 90 phr of a butyl rubber and between 10 phr and 50 phr of a total amount of a GCO copolymer comprising epichlorohydrin derived units and allyl glycidyl ether derived units and a GECO terpolymer comprising epichlorohydrin derived units, allyl glycidyl ether derived units and ethylene oxide derived units, wherein the GECO terpolymer is between 1 percent by weight and 50 percent by weight of the total and also including a sulfur cure system.

Abstract: A barrier layer for impeding the flow of inflation gas through an inflatable article, the barrier layer constructed of a material that is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (pbr) at least 50 phr of a primary elastomer selected from at least one of a halogenated butyl rubber or a polymeric halogenated rubber comprising C4 to C7 isooleiln derived units, para-alkylstyrene derived units and para-(haloalkylstyrene) derived units. The rubber composition may further include between 0 phr and 50 phr of a secondary diene elastomer and a platy filler. Additionally the rubber composition includes 1,3-phenylene dimaleimide and is cured with a sulfur curing system, which includes an accelerator.

Abstract: Lubricant compositions as well as methods and articles utilizing the lubricant compositions that comprise a polyoxyalkene as a lubricating agent, between 4 wt. % and 7.5 wt. % of silica as a thickening agent and an inorganic thixotropic-enhancing metal compound added in an amount of, for example, at least 20 ppm, by weight or alternatively, between 1 ppm and 2 wt. %. The silica may be fumed silica. Examples of the metal compound include KOH, NaOH, KCl, CaCl2, MgCl2, CaO, MgO, Mg(OH)2 or combinations thereof. A tire is also included, comprising a radially inner face designed to be opposite a wheel rim on which it is designed to be mounted, wherein the radially inner face is provided with the lubricant composition described above.

Abstract: Elastomer compositions and products formed therefrom, the compositions including one or more elastomers and glass microfibers having an average fiber diameter of no more than about 5 ?m and an average length of between about 5 and 200 ?m, wherein the glass microfibers are directionally oriented within the elastomer composition. Alternatively, the average length of the glass microfibers may be between 5 and 100 ?m or in other embodiments, between about 10 and 70 ?m. The elastomer compositions may be used to form products that include a tire tread or a support member within the sidewall of a tire. The glass microfibers may be oriented in, inter alia, a substantially circumferential orientation, a tread thickness orientation or at a 45° orientation in a plane formed between the tread thickness and circumferential orientations or in a sidewall thickness direction.

Abstract: Curable elastomer compositions and cured and/or curable articles made therefrom, the curable elastomer composition comprising an essentially unsaturated rubber elastomer, between 0.5 and 25 phr of a metal salt of a carboxylic acid, an effective amount of a peroxide curing agent for curing the elastomer composition and between 0.1 and 10. phr of a hysteresis-decreasing multifunctional curing coagent that decreases the hysteresis of the cured elastomer composition, wherein the hysteresis is measured using a rotorless shear rheometer as a loss tangent at 150° C., 41.85% strain and 10 Hz. The hysteresis of such a cured composition may decrease by at least 15% or alternatively, by at least 25%. The elastomer is useful in tires including, for example, the sidewall supports, the carcass reinforcement and the tread.

Abstract: Lubricant compositions as well as methods and articles utilizing the lubricant compositions that comprise a polyoxyalkene as a lubricating agent, between 4 wt. % and 7.5 wt. % of silica as a thickening agent and an inorganic thixotropic-enhancing metal compound added in an amount of, for example, at least 20 ppm, by weight or alternatively, between 1 ppm and 2 wt. %. The silica may be fumed silica. Examples of the metal compound include KOH, NaOH, KCl, CaCl2, MgCl2, CaO, MgO, Mg(OH)2 or combinations thereof. A tire is also included, comprising a radially inner face designed to be opposite a wheel rim on which it is designed to be mounted, wherein the radially inner face is provided with the lubricant composition described above.

Abstract: A lubricant composition for lubricating an interface between an inner surface of a tire and a safety support ring in a run-flat tire system that includes a lubricating agent selected from glycerol, polyalkylene glycol or combinations thereof and a thixotropic agent. The thixotropic agent is an organoclay comprising a mineral clay mixture treated with an alkyl quaternary ammonium salt, wherein the mineral clay mixture comprises at least one of sepiolite, palygorskite and a smectite and wherein a combined amount of palygorskite and sepiolite in the mineral clay mixture is between about 50 wt. % and about 100 wt. % with a balance of the mineral clay mixture being essentially the smectite. The lubricating agent may also be selected from a copolymer that is a mixture of alkylene oxides, preferably a mixture of ethylene oxide and propylene oxide.

Abstract: Curable elastomer compositions and cured and/or curable articles made therefrom, the curable elastomer composition comprising an essentially unsaturated rubber elastomer, between 0.5 and 25 phr of a metal salt of a carboxylic acid, an effective amount of a peroxide curing agent for curing the elastomer composition and between 0.1 and 10. phr of a hysteresis-decreasing multifunctional curing coagent that decreases the hysteresis of the cured elastomer composition, wherein the hysteresis is measured using a rotorless shear rheometer as a loss tangent at 150° C., 41.85% strain and 10 Hz. The hysteresis of such a cured composition may decrease by at least 15% or alternatively, by at least 25%. The elastomer is useful in tires including, for example, the sidewall supports, the carcass reinforcement and the tread.

Abstract: A cushion gum for bonding a tire tread to a tire carcass, the cushion gum comprising an essentially unsaturated diene elastomer, between (0.5) and (25) phr of a metal salt of a carboxylic acid and a peroxide curing system. The essentially unsaturated diene elastomer may be, in some embodiments, a highly unsaturated diene elastomer such as, for example, natural rubber.

Abstract: A composition well suited to forming gas barrier layers in elastomeric articles is described. The barrier layer may be incorporated into, for instance, inflatable articles that are intended to contain a gas, such as air, under pressure. For example, in one embodiment, the barrier layer may be incorporated into a tire for preventing oxygen or other gaseous components from migrating through the tire. In general, the barrier layer is made from an elastomer that is combined with permeability reducing particles, such as a silicate, and a terpene hydrocarbon resin having a relatively high glass transition temperature. The terpene hydrocarbon resin can improve the processability of the composition and, in one embodiment, can even serve to improve the permeability characteristics of the barrier layer.

Abstract: Elastomer compositions and products formed therefrom, the compositions including one or more elastomers and glass microfibers having an average fiber diameter of no more than about 5 ?m and an average length of between about 5 and 200 ?m, wherein the glass microfibers are directionally oriented within the elastomer composition. Alternatively, the average length of the glass microfibers may be between 5 and 100 ?m or in other embodiments, between about 10 and 70 ?m. The elastomer compositions may be used to form products that include a tire tread or a support member within the sidewall of a tire. The glass microfibers may be oriented in, inter alia, a substantially circumferential orientation, a tread thickness orientation or at a 45° orientation in a plane formed between the tread thickness and circumferential orientations or in a sidewall thickness direction.

Abstract: Rubber compositions having feather material incorporated therein and products formed from these rubber compositions, an example being a cross-linkable or cross-linked rubber composition having an essentially unsaturated rubber elastomer and a filler that is selected from carbon black, silica or combinations thereof with between 1 and 60 phr of feather material, the feather material having feather barbs with a diameter of about 5 ?m and a length of between about 5 and 25 mm. Other embodiments include, with the feather barbs, the feather quills wherein at least a portion of the feather barbs are not separated from the feather quills. The feather material may include a coupling agent comprising a first moiety that is reactant with the rubber elastomer and a second moiety that is reactant with the feather material.