Calprene® 419

Calprene® 419 by Dynasol is a porous crumb, 70/30 Butadiene/Styrene thermoplastic copolymer grade. Polymerized in solution and having a radial structure. Insoluble in water while soluble in organic solvents. Exhibits high porosity and easy dispersion. Suitable for bitumen modification, footwear, mechanical rubber goods, plastic modification and adhesives. Calprene® 419 complies with REACH (Registration, Evaluation, Authorization and Restriction of Chemicals), EINECS (European Inventory of Existing Commercial Substances), TSCA (Toxic Substances Control Act), US Environmental Protection Agency), HSDB (US National Library of Medicine) and RTECS (US Dept. of Health & Human Services).