Dynasol Calprene® 375 Solution Random SBR

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Dynasol Calprene® 375 Solution Random SBR
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Calprene 375 is a Butadiene/Styrene Copolymer, polymerized in solution. It has a random structure with a typical vinyl content of 30%, and is extended with 37.5 phr of naphthenic oil. C-375 is used as ingredient in compounds for battery cases, tires, cables, vulcanized shoe soles and industrial rubber goods. It can replace SBR 1707, 1708, 1778 types. The bales are wrapped in low melting point polyethylene film. Applications: Tires Footwear Mechanical rubber goods Compound Test Recipe: ISO-2322 (A) Information provided by Dynasol.
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Physical Properties	Original Value	Comments

Mooney Viscosity	75	Compounded, ML 1+4; ASTM D1646
	47 @Temperature 100 °C	ML 1+4; ASTM D1646
Ash	<= 0.20 %	ASTM D5667
Collected Volatile Condensable Material	0.70 %	ASTM D5668

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	16.0 MPa	Compounded, 35 mins.; ISO 37
Elongation at Break	460 %	Compounded, 35 mins.; ISO 37
300% Modulus	0.0110 GPa @Strain 300 %	Compounded, 35 mins.; ISO 37

Descriptive Properties
Hunterlab Color	28	ASTM D1925-70
Oil	27 %	ASTM D5774
Total Styrene (on polymer)	25 %	ASTM D5775

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PDYNA11 / 34759

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