The hose rubber composition of this disclosure is a hose rubber composition comprising an organic compound, the hose rubber composition obtainable by compounding a compounding ingredient to a rubber component, wherein: a chloroprene rubber is contained at an amount of less than 70 parts by mass in 100 parts by mass of the rubber component; a chlorinated polymer other than chloroprene rubber is contained in the rubber component as an optional component; a sulfur and, as an optional component, a chlorinated compounding ingredient are contained in the compounding ingredient; and a relation (1) is satisfied:

.sub.k=1.sup.nA.sub.kX.sub.k>0.2.Math.Y(1)

The hose rubber composition of this disclosure is a hose rubber composition comprising an organic compound, the hose rubber composition obtainable by compounding a compounding ingredient to a rubber component, wherein: a chloroprene rubber is contained at an amount of less than 70 parts by mass in 100 parts by mass of the rubber component; a chlorinated polymer other than chloroprene rubber is contained in the rubber component as an optional component; a sulfur and, as an optional component, a chlorinated compounding ingredient are contained in the compounding ingredient; and a relation (1) is satisfied:

.sub.k=1.sup.nA.sub.kX.sub.k>0.2.Math.Y(1)

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.

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.

It has been unexpected found that the fluid resistance of hoses can be greatly enhanced by adding a chlorinated paraffin to a chlorinated polyethylene elastomer or a chlorosulfonated polyethylene elastomer which is used as the tubular inner core layer of the hose. Hoses made using this approach offer the advantage of having improved resistance to modern automotive fluids, provide a longer service life, and better reliability without compromising flexural characteristics or burst strength. Such hoses are comprised of (1) an elastomeric tubular inner core layer defining a lumen, (2) a friction layer, and (3) an elastomeric cover, wherein the elastomeric tubular inner core layer is comprised of (i) a chlorinated elastomer selected from the group consisting of epichlorohydrin, polychloroprene, chlorinated polyethylene and chlorosulfonated polyethylene, (ii) 1 phr to 50 phr of a chlorinated paraffin, and (iii) 30 phr to 120 phr of carbon black.

It has been unexpected found that the fluid resistance of hoses can be greatly enhanced by adding a chlorinated paraffin to a chlorinated polyethylene elastomer or a chlorosulfonated polyethylene elastomer which is used as the tubular inner core layer of the hose. Hoses made using this approach offer the advantage of having improved resistance to modern automotive fluids, provide a longer service life, and better reliability without compromising flexural characteristics or burst strength. Such hoses are comprised of (1) an elastomeric tubular inner core layer defining a lumen, (2) a friction layer, and (3) an elastomeric cover, wherein the elastomeric tubular inner core layer is comprised of (i) a chlorinated elastomer selected from the group consisting of epichlorohydrin, polychloroprene, chlorinated polyethylene and chlorosulfonated polyethylene, (ii) 1 phr to 50 phr of a chlorinated paraffin, and (iii) 30 phr to 120 phr of carbon black.

A chlorosulfonated polyethylene latex, which is safe for living bodies and the environment and can be used as a latex component in a resorcin-formalin-latex adhesive, contains an aqueous dispersion medium, chlorosulfonated polyethylene, and an emulsifying agent of a polyoxyalkylene alkyl ether sulfate of formula (I) below and a fatty acid salt. The latex is excellent in standing stability and mechanical stability. In formula (I), R.sup.1, R.sup.2, n, and M represent an alkyl group of 6 to 20 carbon atoms, hydrogen or a methyl group, an integer of 2 to 40, and an alkali metal, respectively.
R.sup.1O(CH.sub.2CHR.sup.2O).sub.nSO.sub.3M(I)

A chlorosulfonated polyethylene latex, which is safe for living bodies and the environment and can be used as a latex component in a resorcin-formalin-latex adhesive, contains an aqueous dispersion medium, chlorosulfonated polyethylene, and an emulsifying agent of a polyoxyalkylene alkyl ether sulfate of formula (I) below and a fatty acid salt. The latex is excellent in standing stability and mechanical stability. In formula (I), R.sup.1, R.sup.2, n, and M represent an alkyl group of 6 to 20 carbon atoms, hydrogen or a methyl group, an integer of 2 to 40, and an alkali metal, respectively.
R.sup.1O(CH.sub.2CHR.sup.2O).sub.nSO.sub.3M(I)

A chlorosulfonated polyethylene latex, which is safe for living bodies and the environment and can be used as a latex component in a resorcin-formalin-latex adhesive, contains an aqueous dispersion medium, chlorosulfonated polyethylene, and an emulsifying agent of a polyoxyalkylene alkyl ether sulfate of formula (I) below and a fatty acid salt. The latex is excellent in standing stability and mechanical stability. In formula (I), R.sup.1, R.sup.2, n, and M represent an alkyl group of 6 to 20 carbon atoms, hydrogen or a methyl group, an integer of 2 to 40, and an alkali metal, respectively.
R.sup.1O(CH.sub.2CHR.sup.2O).sub.nSO.sub.3M(I)