Description

2-Propenoic Acid, 2-Methyl-, Butyl Ester, Polymer With Ethenylbenzene And Methyl 2-Methyl-2-Propenoate is a high-performance acrylic-based copolymer designed for demanding industrial applications. This specialized polymer offers a critical balance of durability, chemical resistance, and film-forming properties. It is essential for manufacturers in the coatings, adhesives, and sealants industries seeking to enhance product performance and longevity.

Application

• Industrial Coatings Binder: A primary component in solvent-based industrial and maintenance paints, providing excellent gloss, weather resistance, and durability for metal, wood, and plastic substrates.
• Adhesive Formulations: Used in pressure-sensitive adhesives (PSAs) and structural adhesives to improve tack, peel strength, and cohesive strength.
• Automotive Refinish: A key resin in automotive refinish coatings and clearcoats, contributing to high gloss, fast drying times, and resistance to chemicals and environmental etching.
• Plastic & Wood Coatings: Formulated into coatings for plastic components and wooden furniture, offering good adhesion and a hard, protective finish.
• Printing Inks: Serves as a resin vehicle in specialty printing inks, enhancing pigment dispersion, print quality, and substrate adhesion.
• Sealants & Caulks: Imparts flexibility, adhesion, and water resistance to construction and industrial sealant products.

Basic Information

Product Name	2-Propenoic Acid, 2-Methyl-, Butyl Ester, Polymer With Ethenylbenzene And Methyl 2-Methyl-2-Propenoate
CAS No.	26634-89-9
Molecular Formula	(C8H14O2.C5H8O2.C8H8)x
Molecular Weight	Polymer - varies by grade
Synonyms	Butyl Methacrylate / Styrene / Methyl Methacrylate Copolymer; BMA/St/MMA Terpolymer; Acrylic Copolymer Resin; Butyl methacrylate-styrene-methyl methacrylate polymer; 2-Methyl-2-propenoic acid butyl ester, polymer with ethenylbenzene and methyl 2-methyl-2-propenoate; Acrylic terpolymer; BMA/S/MMA resin
EINECS	Contact for details

Quality Control

Our production of this acrylic copolymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is tested against stringent in-house specifications for critical parameters such as molecular weight distribution, solids content, viscosity, and glass transition temperature (Tg). Certificates of Analysis (COA) documenting these results are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and open flame. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to prevent solvent loss or moisture absorption.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Solids Content	40 - 70% (varies by grade)
Viscosity (Brookfield)	500 - 5000 cps (varies by grade & solids)
Color (Gardner)	≤ 2
Acid Value	≤ 5 mg KOH/g
Glass Transition Temp (Tg)	30 - 70°C (DSC)
Solvent	Toluene, Xylene, Esters (Grade dependent)

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