Description

2-Propenoic Acid, 2-Methyl-, Polymer With Ethenylbenzene And 2-Ethylhexyl 2-Propenoate is a high-performance, multi-component acrylic copolymer designed for demanding industrial applications. This terpolymer combines the durability of styrene, the adhesion and hardness of methyl methacrylate, and the flexibility and weatherability of 2-ethylhexyl acrylate into a single, versatile material. It is essential for formulators and manufacturers requiring robust, film-forming polymers with excellent balance of properties. Key industries that rely on this polymer include advanced coatings, adhesives, sealants, and specialty construction materials.

Application

• Architectural and Industrial Coatings: Used as a primary binder in exterior paints, metal coatings, and wood finishes for enhanced durability, gloss retention, and weather resistance.
• Pressure-Sensitive Adhesives (PSAs): Serves as a key component in tape and label adhesives, providing a balance of tack, peel strength, and cohesive strength.
• Sealants and Caulks: Imparts flexibility, adhesion, and long-term stability to construction and automotive sealants.
• Textile and Leather Finishes: Applied as a coating or binder to provide water resistance, abrasion resistance, and improved hand feel.
• Printing Inks: Used in overprint varnishes and ink formulations to enhance gloss, rub resistance, and substrate adhesion.
• Plastic Modifiers: Incorporated as an impact modifier or processing aid to improve the toughness and surface characteristics of rigid plastics.

Basic Information

Product Name	2-Propenoic Acid, 2-Methyl-, Polymer With Ethenylbenzene And 2-Ethylhexyl 2-Propenoate
CAS No.	26636-08-8
Molecular Formula	(C4H6O2·C8H14O2·C8H8)x
Molecular Weight	Polymer - varies by grade
Synonyms	Styrene/Methyl Methacrylate/2-Ethylhexyl Acrylate Terpolymer; SMA-2EHA Copolymer; Acrylic-Styrene Copolymer; MMA/St/2-EHA Terpolymer; Poly(methyl methacrylate-co-styrene-co-2-ethylhexyl acrylate); 2-Methyl-2-propenoic Acid Polymer with Ethenylbenzene and 2-Ethylhexyl 2-Propenoate; Acrylic Terpolymer Binder
EINECS	Contact for details

Quality Control

Our production of this acrylic terpolymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as monomer residue, molecular weight distribution, glass transition temperature (Tg), viscosity, and solids content are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We support compliance with relevant global regulatory frameworks for industrial chemicals.

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, ensure containers are sealed to prevent skin formation or moisture absorption.

Specification

Item	Specification
Appearance	Clear to hazy viscous liquid or solid beads
Solids Content	40% - 50% (in typical solvent) or 100% solid
Viscosity	Variable by grade and solvent
Glass Transition Temperature (Tg)	Variable by monomer ratio
Acid Value	< 5 mg KOH/g
Residual Monomer	< 0.5% (total)
Color (Gardner)	< 2
Identification (IR)	Conforms to structure

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