Butyl acrylate-styrene copolymer

Butyl acrylate-styrene copolymer (CAS 25767-47-9) is a synthetic resin produced by copolymerizing butyl acrylate with styrene, giving a controlled balance of flexibility and hardness in polymer systems.

Where is Butyl acrylate-styrene copolymer used?

• Coatings, adhesives and packaging: film-forming binder and rheology modifier
• Architectural and industrial coatings: primary binder
• Water-based and solvent-borne formulations: control of film hardness, gloss and outdoor durability
• Pressure-sensitive and laminating adhesives: tack tuning and peel strength adjustment without loss of cohesive integrity
• Printing inks and overprint varnishes: adhesion to films and foils, with fast drying
• Sealant and elastomeric compound formulators adjust elongation and cross-link density with curing agents.

Good to know: Grades vary by molecular weight distribution, glass transition temperature and monomer ratio; buyers should confirm these parameters against formulation targets when sourcing.

Commercial specifications

• Solids content typically 40% to 60% in standard emulsion form
• Aqueous emulsions and solvent-borne resin solutions