Description

Poly(Styrene-Co-Butadiene-Co-Methyl Methacrylate) is a high-performance synthetic rubber, specifically a terpolymer, engineered for superior balance of properties. This material is crucial for applications demanding excellent weatherability, ozone resistance, and mechanical strength. It is primarily needed by manufacturers in the automotive, construction, and specialty adhesive industries seeking durable, flexible polymer components.

Application

• Automotive Weather Seals and Gaskets: Provides long-term flexibility and resistance to environmental degradation.
• Impact Modifiers for Plastics (e.g., PVC, PMMA): Enhances the toughness and durability of rigid polymer blends.
• Adhesives and Sealants: Used as a key elastomeric component in high-performance construction and industrial bonding applications.
• Polymer Modification for Asphalt: Improves the elasticity, cohesion, and temperature stability of road-paving and roofing materials.
• Footwear Components: Employed in soles and other parts for its abrasion resistance and flexibility.
• Hose and Belt Manufacturing: Serves as a durable elastomer in industrial and automotive fluid transfer systems.

Basic Information

Product Name	Poly(Styrene-Co-Butadiene-Co-Methyl Methacrylate)
CAS No.	25053-09-2
Molecular Formula	(C8H8·C4H6·C5H8O2)n
Molecular Weight	Varies (Polymer)
Synonyms	Styrene-Butadiene-Methyl Methacrylate Terpolymer; SBM Terpolymer; SB-MMA; Poly(styrene-co-butadiene-co-methyl methacrylate); Acrylonitrile-Free MBS; MBS Impact Modifier; Transparent MBS; Terpolymer Rubber
EINECS	Contact for details

Quality Control

Our Poly(Styrene-Co-Butadiene-Co-Methyl Methacrylate) is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including monomer content, molecular weight distribution, and mechanical properties to ensure consistent performance and lot-to-lot uniformity. Certificates of Analysis (COA) detailing all specifications are available upon request.

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). Keep away from heat sources and open flame. For long-term storage, consider an inert atmosphere to prevent oxidation.

Specification

Item	Specification
Appearance	White to off-white granules/powder
Styrene Content	20 - 40 %
Butadiene Content	30 - 50 %
Methyl Methacrylate Content	20 - 40 %
Volatile Matter	≤ 1.0 %
Ash Content	≤ 0.5 %
Glass Transition Temperature (Tg)	-40 to 0 °C

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