SolpreneВ® 1322 Styrene-Butadiene Rubber SolpreneВ® 1322 is a high molecular weight linear random-block styrene-butadiene copolymer having 30% of styrene content, 22% present as a polystyrene block. A choice of either BHT free or phosphite free, non staining antioxidant systems is available, all FDA approved for use in food contact applications. It is a high purity polymer, essentially gel free with a very clear colour. Presentation S-1322   Bale Main Applications Plastic Modification Documents TDS   MSDS   Characteristics Property Unit Value Styrene % 30 Polystyrene % 22  Mooney Viscosity ML1+4, 100ВєC --- Insoluble Gel % max 0.05 TSV cSt --- Styrene solution viscosity 5% cps 25