Description

2-Propenoic Acid, 2-Methyl-, Polymer With Butyl 2-Propenoate And Ethenylbenzene is a high-performance acrylic-based copolymer designed for demanding industrial applications. This terpolymer combines the durability of methyl methacrylate, the flexibility of butyl acrylate, and the hardness of styrene to deliver a robust material with excellent film-forming properties and chemical resistance. It is essential for manufacturers requiring reliable binders and modifiers to enhance product performance in coatings, adhesives, and sealants. The material is supplied under CAS No. 25036-16-2.

Application

• Industrial and Architectural Coatings: Acts as a primary binder in waterborne and solvent-based paints, providing excellent gloss, weather resistance, and adhesion to various substrates.
• Pressure-Sensitive Adhesives (PSAs): Used in the formulation of tapes and labels, offering a balance of tack, peel strength, and cohesive strength.
• Textile and Leather Finishes: Serves as a coating resin to impart water repellency, durability, and a soft hand feel to fabrics and leather goods.
• Paper and Paperboard Coatings: Enhances surface gloss, printability, and water resistance in high-quality paper products.
• Construction Sealants and Caulks: Provides flexibility, adhesion, and long-term durability in elastomeric sealants for joints and gaps.
• Plastic Modifiers: Used as an impact modifier or processing aid to improve the toughness and flow characteristics of engineering plastics.

Basic Information

Item	Details
Product Name	2-Propenoic Acid, 2-Methyl-, Polymer With Butyl 2-Propenoate And Ethenylbenzene
CAS No.	25036-16-2
Molecular Formula	(C₄H₆O₂·C₈H₁₄O₂·C₈H₈)ₓ
Molecular Weight	Varies (Polymer)
Synonyms	Methyl Methacrylate / Butyl Acrylate / Styrene Terpolymer; MBS Terpolymer; Acrylic-Styrene-Acrylate Copolymer; Butyl Acrylate-Methyl Methacrylate-Styrene Copolymer; Poly(methyl methacrylate-co-butyl acrylate-co-styrene); MMA/BA/STY Terpolymer; MBAS Resin; Acrylic Modifier Resin
EINECS	Contact for details

Quality Control

Every batch of our acrylic terpolymer is manufactured under a strict quality management system. We ensure product consistency through rigorous in-process and final testing, including analysis of molecular weight distribution, monomer residue, glass transition temperature (Tg), and solution viscosity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee compliance with your technical requirements.

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 the container is kept sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White beads or powder
Solid Content	≥ 98.5 %
Glass Transition Temperature (Tg)	40 - 70 °C
Molecular Weight (Mw)	50,000 - 200,000 g/mol
Residual Monomer	≤ 0.5 %
Volatile Content	≤ 1.0 %
Bulk Density	0.4 - 0.6 g/cm³
Identification (IR)	Conforms

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