| abstract |
PURPOSE: A rubber composition having good reinforcing properties and extremely improved heat generating property, obtained by blending rubber with a specific carbon black. n CONSTITUTION: 100pts.wt. natural rubber and/or synthetic rubber is blended with 20W200pts.wt. furnace carbon black having 80W95m 2 /g, specific surface area determined by nitrogen adsorption method 100W110ml/100g oil absorption of dibutyl phthalate 95W105 tinting strength and preferably not less than 180μ half value width of aggregate distribution determined by centrifugal sedimentation method. n COPYRIGHT: (C)1981,JPO&Japio |