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SBR 1502

Polymerization system
-
Cold emulsion
Emulsifier
-
Mixed acid soap
Stabilizer
-
non-staining, non-discoloring
Coagulant
-
Acid

Characteristics :
Bright colored stocks with excellent color stability. Improved abrasion resistance, flexibility.

Uses :
Tire whitewalls and carcasses, a range of mechanical goods such as a white or light colored sporting goods, floor coverings, shoe soles and heels and refrigerator gaskets.

 
Specification Values
POLYMER PROPERTIES
Minimum
Maximum
Test Method
Bound styrene, %
22.5
24.50
ASTM D-1416
Volatile matter, %
-
0.75
ASTM D-1416
Ash, %
-
1.50
ASTM D-1416
Organic Acid, %
4.75
7.00
ASTM D-1416
Soap, %
-
0.50
ASTM D-1416
Mooney Viscosity, ML-4, 100ºC
46
58
ASTM D-1646


COMPOUND PROPERTIES  
Specification Values
 
Test Method, ASTM D 412
Minutes Cured at 145ºC
Minimum
Maximum
Typical
Values
Tensile strength, kg/cm²
35
230
230 min.
Elogation, %
35
410
410 min
300% Modulus, kg/ cm²
25
95
135
115
 
35
135
175
155
 
50
155
195
175
         


Test Recipe, ASTM D 3185

 Parts
SBR 1502 100.00
NBS 370 zinc oxide 3.00
NBS 372 stearic acid 1.00
NBS 371 sulfur 1.75
NBS 378 HAF black (IRB#6) 50.00
NBS 384 TBBS 1.00
 
Total 156.75