Description

Butanedioic Acid, Methylene-, Monomethyl Ester, Polymer With Butyl 2-Methyl-2-Propenoate and Methyl 2-Methyl-2-Propenoate is a specialized acrylic copolymer designed to deliver enhanced performance characteristics in demanding formulations. This polymer is valued for its ability to modify film properties, improve adhesion, and provide excellent chemical resistance. It is a critical raw material for manufacturers in the coatings, adhesives, and specialty polymer industries seeking to develop high-performance, durable end-products.

Application

• Industrial and Protective Coatings: Used as a film-forming agent and modifier to enhance durability, weather resistance, and adhesion to various substrates.
• Adhesives and Sealants: Serves as a key polymer component to improve bonding strength, flexibility, and environmental stability.
• Printing Inks: Incorporated to adjust rheology, promote substrate adhesion, and improve the gloss and abrasion resistance of the ink film.
• Textile and Leather Finishes: Applied in coatings to provide a protective, flexible layer that enhances feel and durability.
• Plastic Additives: Functions as a processing aid or impact modifier to improve the mechanical properties of compounded plastics.

Basic Information

Product Name	Butanedioic Acid, Methylene-, Monomethyl Ester, Polymer With Butyl 2-Methyl-2-Propenoate and Methyl 2-Methyl-2-Propenoate
CAS No.	55845-18-6
Molecular Formula	(C8H12O4 • C8H14O2 • C5H8O2)x
Molecular Weight	Polymer - varies by grade
Synonyms	Methylene Butanedioic Acid Monomethyl Ester Polymer with Butyl Methacrylate and Methyl Methacrylate; Acrylic Copolymer; Methacrylic Acid Ester Copolymer; Butyl Methacrylate/Methyl Methacrylate/Methylene Succinic Acid Monomethyl Ester Polymer; Poly(butyl methacrylate-co-methyl methacrylate-co-monomethyl itaconate); Itaconic Acid Monomethyl Ester Copolymer; BMA/MMA/Monomethyl Itaconate Terpolymer
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. Quality is verified through comprehensive testing of key parameters including monomer content, molecular weight distribution, viscosity, and glass transition temperature (Tg). A Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. For long-term storage, consider using under an inert atmosphere to prevent potential oxidation or moisture uptake.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Identification (IR)	Conforms
Assay (Polymer Content)	≥ 98.0%
Residual Monomer (GC)	≤ 0.5%
Viscosity (Brookfield)	Specified per grade
Glass Transition Temp (Tg)	Specified per grade
Acid Value	Specified per grade

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