Table 1. SBR Rubber Compounds Formulation Filled with Silica or Carbon Blacks

Ingredients	Compounds
	Control	C30	S30	C50	S50NT	S50	S60	S70
SBR1)	100	100	100	100	100	100	100	100
Carbon Black (N330)	0	30	0	50	0	0	0	0
Silica (Z115)	0	0	30	0	50	50	60	70
Si692)	0	0	2.4	0	0	4.0	4.8	5.6
ZnO	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0
Stearic Acid (SA)	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0
3C3)	3.0	3.0	3.0	3.0	3.0	3.0	3.0	3.0
Wax	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0
Sulfur	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7
CZ4)	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0
DPG5)	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6

A solution polymerized styrene-butadiene rubber (bound styrene content: 25%),
bis(3-triethoxysilylpropyl tetrasulfane),
N-isopropyl-N’-phenylenediamine),
N-cyclohexyl-benzothiazyl-sulfenamide) and,
1,3-diphenylguanidine