Synthos SPRINTAN™ SLR 4601 Solution Styrene Butadiene Rubber (S-SBR)

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Synthos SPRINTAN™ SLR 4601 Solution Styrene Butadiene Rubber (S-SBR)
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE); Styrene Butadiene Rubber
Material Notes:	Composition: SPRINTAN® SLR-4601 – Schkopau is manufactured by anionic solution polymerization using an organo-lithium initiator. The product has a medium styrene/high vinyl micro structure and a typical glass transition temperature of -25°C. SPRINTAN® SLR-4601 – Schkopau is partially coupled and bears a GENERATION 1 functionalisation for improved polymer/filler interaction especially with carbon black. A non-staining stabilizer is added in the production. Application: SPRINTAN® SLR-4601 – Schkopau provides excellent balance between wet grip and rolling resistance for low fuel consumption tyre treads based on carbon black. The high-vinyl micro structure makes SPRINTAN® SLR-4601 – Schkopau applicable in summer-, all-season-, as well as in winter tyres. Test Formulation (based on IRB7 black): Polymer - 100.0 parts by mass Stearic Acid - 1.50 parts by mass Zinc Oxide - 3.00 parts by mass Carbon Black IRB 7 - 50.0 parts by mass Aromatic Oil - 5.00 parts by mass Sulphur - 1.75 parts by mass Accelerator (CBS) - 1.00 parts by mass
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Physical Properties	Metric	English	Comments

Density	0.930 g/cc	0.0336 lb/in³
Volatiles	0.20 % @Treatment Temp. 105 °C, Time 3600 sec	0.20 % @Treatment Temp. 221 °F, Time 1.00 hour	5 g in hot air oven; ASTM D5668
Mooney Viscosity	49 @Temperature 100 °C	49 @Temperature 212 °F	[MU] ML 1+4; ASTM D1646
Ash	0.010 %	0.010 %	ASTM D5667

Chemical Properties	Metric	English	Comments
Styrene Content	21 %	21 %	Bound; ASTM D5775

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	62.5	62.5	ASTM D2240
Tensile Strength at Break	21.8 MPa @Treatment Temp. 145 °C, Time 2100 sec	3160 psi @Treatment Temp. 293 °F, Time 0.583 hour	Cure; ASTM D412
Elongation at Break	355 %	355 %	ASTM D412
300% Modulus	17.9 MPa @Strain 300 %	2600 psi @Strain 300 %	ASTM D412
Rebound	27.5 %	27.5 %	Resilience; ISO 4662

Thermal Properties	Metric	English	Comments
Glass Transition Temp, Tg	-25.0 °C	-13.0 °F	HR 10 K/min, half height

Descriptive Properties
Composition	62.2%		Vinyl content
Rheometer	10 min		t_c (50), ASTM D5289
	16 min		t_c (90), ASTM D5289
	19.9 dNm		MH, ASTM D5289
	2.1 dNm		ML, ASTM D5289
	7.1 min		t_s2, test temperature 160°C; ASTM D5289

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PZZDWST241 / 142450

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