Solution Styrene Butadiene Rubbers

The Buna® SL product group contains low vinyl butadiene-styrene copolymers, produced by solution polymerization using an alkyl-lithium catalyst. Oil extended and clear grades are available. The polymers are stabilized with non-staining antioxidants, which are added during the manufacturing process and impart excellent heat aging properties under normal storage conditions.

Applications

Due to the very low Tg close to that of natural rubber, Buna SL has excellent properties in the manufacture of tires, retreads, moulded technical parts, injected or extruded goods, surgical goods, shoe soles and automotive industry parts. Provided that the compounds are formulated and processed correctly, the vulcanizates have good resistance to reversion. The low temperature flexibility, resilience and abrasion resistance depend on the polymer´s styrene and vinyl content. The low vinyl content provides a low Tg which gives an excellent low temperature flexibility, abrasion resistance and low rolling resistance. In tire manufacture it is blended with NR, BR or emulsion SBR.

 

 

Product Portfolio

 

Buna® Styrene[%] Mooney oil
SL 4525-02545none
SL 4518-4184537,5 phr HN-oil
SL 7518-4187537,5 phr HN-oil

Contact

Marcus Moutinho
Technical Service - LATAM

Phone: +55 21 2677 1219

David Hardy
Technical Service - EMEA

Phone: +49 221 8885 6307

Judy Douglas
Technical Service - NAFTA

Phone: +1 412 809 3547

Esther Han
Technical Service - APAC

Phone: +65 6725 5777

Luc ter Bogt
Technical Service - EMEA

Phone: 49 (0)221 8885 3998