Butonal NS 150 Non-carboxylated SBR BASF Styrene copolymer >> Styrene butadiene rubber, SBR ADHESIVE BUTONAL NS 150 Non - Carboxylated Styrene - Butadiene Latex. Elastic, clear film with very slight tack. Exhibits good "auto adhesion" for contact / cold seal laminating. Blends with natural latex and selected tackifiers for greater auto - adhesion. Non carboxylated styrene-butadiene latex. Offers elastic, clear films with very slight tack. Exhibits "auto adhesion" for contact/cold seal laminating. Can be blended with natural latex and selected tackifiers for greater auto - adhesion.