4results about How to "Extended scorch time" patented technology

The invention discloses low-VOC (volatile organic compound) environment-friendly end-capped mercapto silane as well as a preparation method and application thereof.The preparation method comprises the following steps: by taking chloroalkyl trialkoxysilane and linear alkyl polyether alcohol as raw materials, reacting to form an intermediate c; reacting alkyl acyl chloride with sodium sulfide or sodium hydrosulfide to form an intermediate e; and reacting the intermediate c with the intermediate e to obtain a final product. Silane is used as a rubber auxiliary agent, so that the volatilization amount of alcohols in the internal mixing process of a rubber compound can be greatly reduced, the emission amount of VOC during operation is reduced, meanwhile, the vulcanization performance of a rubber material can be improved, the scorching time of the rubber material can be prolonged, the reinforcing effect of vulcanized rubber can be improved, the physical and mechanical properties of the vulcanized rubber can be improved, and the wet skid resistance of tread rubber can be improved; therefore, the environment-friendly rubber auxiliary agent is a multifunctional environment-friendly rubber auxiliary agent.

This invention discloses an organocobalt salt for improving the tensile strength of rubber and its preparation method, belonging to the field of rubber technology. The organocobalt salt for improving the tensile strength of rubber comprises, by mass parts, 140-210 parts of organosilicon vegetable fatty acid, 20-30 parts of solvent, 20-30 parts of cobalt hydroxide, and 10-16 parts of propionic acid. The organosilicon vegetable fatty acid is obtained by reacting rosin with organosilicon maleimide. The organosilicon maleimide is obtained by reacting maleic anhydride with a silicon-containing long-chain fatty amine. The silicon-containing long-chain fatty amine is obtained by reacting methyldiethoxysilane with an unsaturated long-chain fatty amine. The organocobalt salt obtained by this invention has a good effect on promoting the adhesion between metal and rubber while effectively improving the tensile strength of rubber.

The invention relates to a semiconductive compound composition and a preparation method thereof. In particular to a semiconductive compound composition and a preparation method thereof, the semiconductive compound composition comprises a base resin and carbon black, the base resin is formed by mixing two ethylene butyl acrylate resins with same non-melting indexes, and the volume of the carbon black in the semiconductive compound composition accounts for more than 60% of the volume of the total composition.

The present invention relates to an organic peroxide formulation comprising:-at least one organic peroxide having a one-hour half-life temperature of from 90 DEG C to 130 DEG C, and-at least one drying oil wherein the weight ratio of drying oil to organic peroxide is less than or equal to 0.60. The invention also relates to a composition comprising at least one polymer and such an organic peroxide formulation, a method for preparing the same and a method for manufacturing an article using such a composition.