摘要:
It has been discovered that the use of a plasticizer, an ester of a cyclohexanepolycarboxylic acid, especially a 1,2-cyclohexanedicarboxylic acid ester, that is environmentally non-toxic, can replace environmentally unfriendly phthalate plasticizers, such as dioctyl phthalates used in vulcanizable rubber compositions, especially for tires, on a one to one weight basis (phr) without sacrificing beneficial rubber properties.
摘要:
Old, spent or worn tires are recycled by removing non-rubber components such as belts, beads, and fabric, and grinding the remaining cured rubber into fine sized particles. The ground particles generally replace equivalent amounts of rubber and additives in various tire formulated components such as tire treads. Good physical properties of the end product are retained.
摘要:
It has been discovered that the use of a plasticizer, an ester of a cyclohexanepolycarboxylic acid, especially a 1,2-cyclohexanedicarboxylic acid ester, that is environmentally non-toxic, can replace environmentally unfriendly phthalate plasticizers, such as dioctyl phthalates used in vulcanizable rubber compositions, especially for tires, on a one to one weight basis (phr) without sacrificing beneficial rubber properties.
摘要:
Tires made using nylon cord in the fabric plies are built in a conventional manner, cured in a conventional manner in a curing press, removed from the curing press and held in an uninflated state for from 4 to 7 minutes, then post inflated. The tires remain in the inflated state until the temperature has been reduced below the heat shrink temperature of the nylon cord.The cords in the tires which have been subjected to the post inflation treatment of the present invention have higher tensile strength than cords in tires which have been post inflated both in and out of the mold immediately after curing and tires which were not post inflated.