FIELD: chemistry.
SUBSTANCE: invention relates to a rubber composition and a tyre manufactured using same. Rubber mixture is prepared by blending at least one rubber component selected from a natural rubber and/or a diene base synthetic rubber with silica and a glycerin fatty acid ester composition, wherein the amount of the glycerin fatty acid ester composition is 0.5 to 15 parts by mass based on 100 parts by mass of the rubber component; the fatty acid has 8 to 28 carbon atoms; the glycerin fatty acid ester composition comprises glycerin fatty acid monoester and glycerin fatty acid diester; and content of the glycerin fatty acid monoester in the glycerin fatty acid ester composition is 85 wt% or less, and the content of the glycerin fatty acid diester in the glycerin fatty acid ester composition is 10-65 wt%.
EFFECT: rubber mixture improves dispersibility of silica and enhances processability by reducing viscosity of unvulcanised rubber and which suppresses rubber scorching, inhibits shrinkage without delaying a vulcanisation rate and improves heat resistance.
22 cl, 7 tbl
