Description

Styrene-Butylacrylate Copolymer is a synthetic polymer formed from the copolymerization of styrene and butyl acrylate monomers. This versatile material is engineered to deliver a balanced profile of durability, flexibility, and adhesion, making it a critical component in high-performance industrial formulations. It is essential for manufacturers in the coatings, adhesives, sealants, and construction industries seeking to enhance product resilience and application properties.

Application

• Architectural and Industrial Coatings: Used as a primary binder in water-based paints and coatings, providing excellent film formation, weather resistance, and gloss retention.
• Adhesives and Sealants: Serves as a key polymer in pressure-sensitive adhesives (PSAs), construction adhesives, and caulks, offering strong bonding power and flexibility.
• Textile and Non-Woven Binders: Applied as a binder for fabrics and non-woven materials to improve durability, hand feel, and wash resistance.
• Paper and Paperboard Coating: Enhances the surface strength, printability, and water resistance of paper products.
• Leather Finishing: Used in topcoat formulations to provide a protective, flexible, and aesthetically pleasing finish.
• Concrete and Cement Modification: Incorporated into construction materials to improve adhesion, reduce cracking, and enhance overall durability.

Basic Information

Product Name	Styrene-Butylacrylate Copolymer
CAS No.	60806-47-5
Molecular Formula	(C8H8·C7H12O2)n
Molecular Weight	Varies (Polymer)
Synonyms	Styrene Butyl Acrylate Copolymer; Butyl Acrylate-Styrene Copolymer; Acrylic Styrene Copolymer; SB Copolymer; Poly(Styrene-co-Butyl Acrylate); Styrene/Acrylic Copolymer; Joncryl® (series); Acronal® (series); Rhoplex® (series)
EINECS	Contact for details

Quality Control

Our Styrene-Butylacrylate Copolymer is manufactured under a stringent quality management system. Each batch is tested against rigorous internal specifications to ensure consistent performance in viscosity, solids content, particle size, and mechanical properties. Certificates of Analysis (COA) documenting these parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Avoid freezing and prolonged exposure to extreme heat. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White emulsion or solid
Solid Content	40 - 50 %
pH Value	7.0 - 9.0
Viscosity	500 - 3000 mPa·s
Glass Transition Temperature (Tg)	-10°C to +25°C
Minimum Film Forming Temperature (MFFT)	0°C to 15°C
Particle Size	80 - 200 nm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.