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LG Chemical BR 1208 Polybutadiene Polymer

Category	Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer	LG Chemical
Trade Name
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	LG Chemical BR 1208 Polybutadiene Polymer.pdf
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Material Notes:

Description: BR1208 is high cis- 1,4 polybutadiene polymer produced by a solution polymerization process employing a stereospecific catalyst to control microstructure, molecular weight and molecular weight distribution. This grade is stabilized with a non- staining, non- discoloring antioxidant allowing for its physical property persistence during storage and application. BR1208, having very high cis content more than 97%, have a good abrasion resistance, flex- cracking resistance, resilience and low temperature properties. In addition, BR1208 has an excellent building tack, a good roll processability and white color.Application: BR1208 is used in tire tread, carcass compounds, shoe sole, V- belts, conveyor belt coverings, hose and tube covers, solid golf balls and various industrial products.CAS No: 9003-17-2Information provided by LG Chemical

Physical Properties	Metric	English	Comments
Specific Gravity	0.910 g/cc	0.910 g/cc
Volatiles	0.20 %	0.20 %
Mooney Viscosity	45 @Temperature 100 Â°C	45 @Temperature 212 Â°F	ML 1+4
Ash	0.050 %	0.050 %

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	16.7 MPa @Temperature 145 Â°C, Time 2100 sec	2420 psi @Temperature 293 Â°F, Time 0.583 hour	cured; ASTM D412
Elongation at Break	410 % @Temperature 145 Â°C, Time 2100 sec	410 % @Temperature 293 Â°F, Time 0.583 hour	cured; ASTM D412
300% Modulus	0.0108 GPa @Temperature 145 Â°C, Time 2100 sec	1.56 ksi @Temperature 293 Â°F, Time 0.583 hour	cured; ASTM D412

Descriptive Properties	Value	Comments
cis contents	0.98
Color	White
Components	BR1208	100, ASTM D3189
	HAF (IRB#7)	60, ASTM D3189
	Naphthenic Oil	15, ASTM D3189
	Stearic Acid	2, ASTM D3189
	Sulfur	1.5, ASTM D3189
	TBBS	0.9, ASTM D3189
	ZnO	3, ASTM D3189
Extractables	0.003
Rheometer	11.8 min	t'90, 160Â°C, 1Â° Arc, ASTM D5289
	2.9 min	ts1, 160Â°C, 1Â° Arc, ASTM D5289
	24.5 lb-in	MH, 160Â°C, 1Â° Arc, ASTM D5289
	4.0 lb-in	ML, 160Â°C, 1Â° Arc, ASTM D5289
	7.8 min	t'50, 160Â°C, 1Â° Arc, ASTM D5289

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