Provided is a sealant material composition that can ensure good sealing properties while suppressing a flow of a sealant during travel and that can provide such performance in a well-balanced, compatible manner. As a sealant material composition constituting a sealant layer (10) disposed in an inner surface of a pneumatic tire, a sealant material composition in which a proportion (A) of toluene insoluble occupying the sealant material composition is from 30 mass % to 60 mass % is used, or a sealant material composition in which a ratio (d1/d2) of measured specific gravity (d1) of the sealant material composition measured by an underwater replacement method to calculated specific gravity (d2) of the sealant material composition calculated from specific gravity and a blended amount of each raw material in the sealant material composition is from 0.7 to 0.9 is used.

Provided is a sealant material composition that can ensure good sealing properties while suppressing a flow of a sealant during travel and that can provide such performance in a well-balanced, compatible manner. As a sealant material composition constituting a sealant layer (10) disposed in an inner surface of a pneumatic tire, a sealant material composition in which a proportion (A) of toluene insoluble occupying the sealant material composition is from 30 mass % to 60 mass % is used, or a sealant material composition in which a ratio (d1/d2) of measured specific gravity (d1) of the sealant material composition measured by an underwater replacement method to calculated specific gravity (d2) of the sealant material composition calculated from specific gravity and a blended amount of each raw material in the sealant material composition is from 0.7 to 0.9 is used.

Halogenated butyl rubbers are provided comprising lignins and co-reinforcing agents, where the ratio of the lignin to the co-reinforcing agent is selected so as to effectively modulate advantageous properties of the vulcanizate. The advantageous properties are achieved when using a ratio of lignin to the co-reinforcing agent, such as carbon black or silica, that is higher than in a reference vulcanizate, in effect the substitution of lignin for conventional reinforcing agents improves the reinforcement of the vulcanizates.

Base coats and methods of producing the same are provided. In an exemplary embodiment, a method of producing a base coat includes forming a CPO intermediate and a color intermediate. The CPO intermediate includes a CPO solvent and a chlorinated polyolefin, where the chlorinated polyolefin is present in the CPO intermediate at from about 5 to about 20 weight percent, based on a total weight of the CPO intermediate. The color intermediate includes a color imparting additive and a color solvent that is different than the CPO solvent. The CPO intermediate and the color intermediate are combined to form the base coat.

The present invention relates to a rubber composition containing a rubber component, a eutectic compound, metal oxide, and a peroxide-based crosslinking agent, and a production method thereof. The rubber composition in which the blending amount of metal oxide such as zinc oxide is largely reduced is obtained, which may have the same vulcanization characteristics and vulcanized-rubber physical properties as those of a rubber composition in which a large amount of metal oxide is blended, while considering the environment.

The present invention relates to a rubber composition containing a rubber component, a eutectic compound, metal oxide, and a peroxide-based crosslinking agent, and a production method thereof. The rubber composition in which the blending amount of metal oxide such as zinc oxide is largely reduced is obtained, which may have the same vulcanization characteristics and vulcanized-rubber physical properties as those of a rubber composition in which a large amount of metal oxide is blended, while considering the environment.

The present disclosure relates to a polyethylene, which is reacted with chlorine to prepare a chlorinated polyethylene having excellent chlorination productivity and thermal stability by enabling an increase in chlorination temperature, and facilitating deoxidation, dehydration and drying processes during chlorination processing, by implementing an enlarged area of the middle and high molecular weight regions in the molecular structure of the polyethylene.

Hoses include a tube, a reinforcement layer disposed outwardly from the tube, and a cover layer disposed outwardly from the reinforcement layer. The cover layer may be based on a first elastomeric blend of a first chlorinated polyethylene and chlorosulphonated polyethylene, a first flame-resistant composition, and a peroxide/sulfur curing system. The tube may be based upon a second elastomeric blend of a second chlorinated polyethylene and ethylene vinyl acetate rubber, a second flame-resistant composition, and a peroxide curing system. The first flame-resistant package and the second flame-resistant package includes one or more ingredients selected from the group consisting of antimony oxide, zinc molybdate/magnesium silicate complex, magnesium aluminum hydroxy carbonate, and aluminum trihydroxide. In some aspects, the hoses meet the testing performance requirements of EN 45545-2, HL2/R22 category standard, and EN854 type 2TE standard.

A tire is provided that has an inner liner with a rubber composition based upon a cross-linkable rubber composition that has per 100 parts by weight of rubber. The tire has a rubber component between 80 phr and 98 phr of a butyl rubber, between 0.5 phr and 15 phr of a polybutadiene rubber and between 0 phr and 20 phr of a polyisoprene. Also present is between 1 phr and 10 phr of a plasticizing resin having a glass transition temperature of at least 25° C. Also included is between 1 phr and 40 phr of a platy filler, and a curing system.

A tire is provided that has an inner liner with a rubber composition based upon a cross-linkable rubber composition that has per 100 parts by weight of rubber. The tire has a rubber component between 80 phr and 98 phr of a butyl rubber, between 0.5 phr and 15 phr of a polybutadiene rubber and between 0 phr and 20 phr of a polyisoprene. Also present is between 1 phr and 10 phr of a plasticizing resin having a glass transition temperature of at least 25° C. Also included is between 1 phr and 40 phr of a platy filler, and a curing system.