Trinseo SPRINTAN™ SLR 4630-SCHKOPAU Solution-Styrene Butadiene Rubber (S-SBR)

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Trinseo SPRINTAN™ SLR 4630-SCHKOPAU Solution-Styrene Butadiene Rubber (S-SBR)
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Composition: SPRINTAN™ SLR 4630–Schkopau is manufactured by anionic solution polymerization using an organo-lithium initiator. In relation to solid rubber the grade is extended with 37.5 parts of TDAE oil which complies with the EU Directive 2005/69/EC for use in tire application. The product has a medium styrene/high vinyl micro structure and a typical glass transition temperature of -28 °C. SPRINTAN™ SLR 4630–Schkopau is partially Si-coupled and contains a non-staining stabilizer. Application: SPRINTAN™ SLR 4630–Schkopau provides an excellent balance between good wet traction and low rolling resistance for silica- and/or carbon black- filled tire tread compounds for summer -, winter -, and all season tires. Information provided by Trinseo.
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Physical Properties	Original Value	Comments

Density	0.940 g/cc
Volatiles	0.010 %	1 hr at 105°C in a hot air oven, 5 g sample; ASTM D5668
Mooney Viscosity	55.2 @Temperature 100 °C	MU, ML 1+4; ASTM D1646
Ash	0.30 %	ASTM D5667

Chemical Properties	Original Value	Comments
Styrene Content	24.9 %	SM, (FTIR)

Mechanical Properties	Original Value	Comments
Hardness, Shore A	58.8	ASTM D2240
Tensile Strength at Break	19.7 MPa	Cure: 45 min at 145°C; ASTM D412
Elongation at Break	470 %	ASTM D412
300% Modulus	0.0126 GPa @Strain 300 %	ASTM D412
Rebound	18 %	ISO 4662

Thermal Properties	Original Value	Comments
Glass Transition Temp, Tg	-28.0 °C	DSC (HR 10 K/min, half height)

Descriptive Properties
Rheometer	11 min	tc(50), ASTM D5289
	16.9 dNm	MH, ASTM D5289
	18.8 min	tc(90), ASTM D5289
	2.9 dNm	ML, ASTM D5289
	7.7 min	ts2, 160°C, ASTM D5289
Test Formulation	1 Part	Stearic acid
	1 Part	Accelerator (TBBS)
	1.75 Parts	Sulfur
	100 Parts	Polymer
	3 Parts	Zinc oxide
	50 Parts	Carbon black IRB8
Total extractables	27 percent	ASTM D5774
Vinyl content	61.7 percent	SM, (FTIR)

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PTRINS9108 / 197578

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