Description

2-Propenoic Acid, 2-Methyl-, Methyl Ester, Polymer With Ethenylbenzene And 2-Propenenitrile is a high-performance, multi-component acrylic copolymer designed for demanding industrial applications. This terpolymer combines the properties of methyl methacrylate, styrene, and acrylonitrile to deliver a robust material with excellent chemical resistance, hardness, and thermal stability. It is a critical raw material for manufacturers in the coatings, adhesives, and plastics industries seeking to enhance product durability and performance. The compound is supplied under CAS No. 25213-88-1.

Application

• Industrial and Automotive Coatings: Used as a key binder or resin modifier to provide superior gloss retention, weatherability, and resistance to chemicals, solvents, and abrasion.
• Adhesives and Sealants: Imparts high cohesive strength, adhesion to diverse substrates, and enhanced durability in structural and pressure-sensitive adhesive formulations.
• Engineering Plastics and Composites: Acts as a performance additive to improve the impact strength, surface hardness, and dimensional stability of polymer blends.
• Paints and Varnishes: Serves as a primary film-forming agent, contributing to fast drying times, excellent film clarity, and long-lasting protective finishes.
• Textile and Leather Finishes: Applied in coatings to provide a tough, flexible, and water-resistant surface on fabrics and leather goods.
• Printing Inks: Enhances the durability, scratch resistance, and adhesion properties of inks used in packaging and commercial printing.

Basic Information

Product Name	2-Propenoic Acid, 2-Methyl-, Methyl Ester, Polymer With Ethenylbenzene And 2-Propenenitrile
CAS No.	25213-88-1
Molecular Formula	(C5H8O2.C8H8.C3H3N)x
Molecular Weight	Varies (Polymer)
Synonyms	Methyl Methacrylate-Styrene-Acrylonitrile Terpolymer; MSAN; MMA-St-AN Terpolymer; Poly(methyl methacrylate-co-styrene-co-acrylonitrile); Acrylic-Styrene-Acrylonitrile Copolymer; MSA Polymer; Terpolymer of Methyl Methacrylate, Styrene, and Acrylonitrile; 2-Methyl-2-propenoic acid methyl ester polymer with ethenylbenzene and 2-propenenitrile
EINECS	Contact for details

Quality Control

Our production of this terpolymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Every lot is characterized for critical parameters including monomer content, molecular weight distribution, and thermal properties. Certificates of Analysis (COA) detailing specific test results are provided with each shipment. We support compliance with relevant global regulatory frameworks, and specifications can be aligned with customer-specific 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. Ensure the container is kept tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Solid Content	≥ 98.0 %
Residual Monomer (Total)	≤ 0.5 %
Glass Transition Temperature (Tg)	Contact for details
Viscosity (Solution)	Contact for details
Acid Value	≤ 1.0 mg KOH/g
Ash Content	≤ 0.1 %

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