Description

2-Propenoic Acid, 2-Methyl-, Methyl Ester, Polymer With Butyl 2-Propenoate And Ethenylbenzene is a high-performance, multi-component acrylic copolymer designed for demanding industrial applications. This specialized polymer offers a unique balance of properties derived from its constituent monomers, including hardness, flexibility, and chemical resistance. It is a critical raw material for formulators in the coatings, adhesives, and sealants industries seeking to enhance product durability and performance.

Application

• Industrial and Protective Coatings: Used as a key binder in solvent-based paints and varnishes for metal, wood, and plastic substrates, providing excellent gloss, adhesion, and weatherability.
• Adhesive Formulations: Serves as a primary resin in pressure-sensitive adhesives (PSAs) and structural adhesives, contributing to tack, peel strength, and cohesive strength.
• Printing Inks: Employed in the manufacture of high-quality printing inks, improving pigment wetting, print clarity, and rub resistance.
• Textile and Leather Finishes: Acts as a coating or finishing agent to impart water repellency, abrasion resistance, and a desired hand feel to fabrics and leather goods.
• Sealants and Caulks: Provides flexibility, adhesion, and durability in formulations for construction and automotive sealants.
• Plastic Modifiers: Used as an impact modifier or processing aid to enhance the mechanical properties and processability of other polymer systems.

Basic Information

Product Name	2-Propenoic Acid, 2-Methyl-, Methyl Ester, Polymer With Butyl 2-Propenoate And Ethenylbenzene
CAS No.	27136-15-8
Molecular Formula	(C5H8O2.C7H12O2.C8H8)x
Molecular Weight	Varies (Polymer)
Synonyms	Methyl Methacrylate / Butyl Acrylate / Styrene Copolymer; MBS Copolymer; Acrylic-Styrene Copolymer; MMA/BA/ST Copolymer; Poly(methyl methacrylate-co-butyl acrylate-co-styrene); Terpolymer of Methyl Methacrylate, Butyl Acrylate, and Styrene; 2-Methyl-2-propenoic acid methyl ester polymer with butyl 2-propenoate and ethenylbenzene
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. Key parameters such as molecular weight distribution, glass transition temperature (Tg), solids content, and viscosity are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance protocols.

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. Under recommended storage conditions, the product is stable for at least 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid or solid beads
Solids Content	40% - 50% (or as per grade)
Viscosity (Brookfield)	500 - 5000 cps (at 25°C, solution)
Glass Transition Temp (Tg)	20°C - 60°C (DSC)
Acid Value	≤ 5.0 mg KOH/g
Color (Gardner)	≤ 2
Residual Monomer	≤ 0.5% (GC)
Solvent (Typical)	Toluene, Xylene, Ethyl Acetate

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