| abstract |
PURPOSE: To provide a rubber composition capable of preventing the apparent color change of a rubber caused by blooming in the case of compounding a large amount of antioxidant to the rubber, and giving a rubber product having remarkably improved appearance, by compounding a specific dye to a rubber composition containing carbon black. n CONSTITUTION: A rubber composition containing carbon black is compounded with 0.006W5pts.(wt.), preferably 0.5W3pts. (based on 100pts. of the polymer in the rubber composition) of a dye having a solubility index of 5.0W12.0, preferably 6.0W10.0, hue of 5GYW10BGW5P, preferably 10GW10BGW10PB in Munsell system, and value of ≤5, preferably ≤3. n COPYRIGHT: (C)1985,JPO&Japio |