Description

2-Propenoic Acid, 2-Methyl-, Methyl Ester, Polymer With 1,3-Butadiene, Ethenylbenzene, (1-Methylethenyl)Benzene And 2-Propenenitrile CAS NO 26950-66-3 is a high-performance, multi-component acrylic copolymer engineered for demanding industrial applications. This specialized polymer combines the toughness of butadiene, the hardness and weather resistance of styrenic monomers, and the adhesion and chemical resistance of acrylates. It is a critical raw material for formulators seeking to enhance the durability, flexibility, and adhesion properties of their products. Key industries that rely on this advanced polymer include adhesives, sealants, coatings, and plastics modification.

Application

• Pressure-Sensitive Adhesives (PSAs): Serves as a key binder for tapes, labels, and graphic films, offering excellent tack and peel strength.
• Industrial and Construction Sealants: Provides flexibility, adhesion to diverse substrates, and long-term weatherability in caulks and sealants.
• Protective and Decorative Coatings: Used in water-based or solvent-based coating formulations to improve film formation, adhesion to plastics/metals, and chemical resistance.
• Plastics and Rubber Modification: Acts as an impact modifier or compatibilizer to enhance the toughness and processability of engineering plastics and rubber compounds.
• Textile and Non-Woven Binders: Provides durable binding and hand feel for fabric coatings and non-woven materials.
• Automotive Interiors: Used in adhesives for trim, dashboards, and headliners due to its strong bonding and resistance to heat and plasticizer migration.

Basic Information

Product Name	2-Propenoic Acid, 2-Methyl-, Methyl Ester, Polymer With 1,3-Butadiene, Ethenylbenzene, (1-Methylethenyl)Benzene And 2-Propenenitrile
CAS No.	26950-66-3
Molecular Formula	(C4H6·C8H8·C9H10·C3H3N·C5H8O2)x
Molecular Weight	Varies (Polymer)
Synonyms	Acrylic-styrene-acrylonitrile-butadiene copolymer; MABS terpolymer (Methyl methacrylate-Acrylonitrile-Butadiene-Styrene); Methyl methacrylate/butadiene/styrene/acrylonitrile copolymer; MBS impact modifier; MMA-ABS graft copolymer; Butadiene-styrene-acrylonitrile-methyl methacrylate polymer; Transparent impact modifier; 2-Methyl-2-propenoic acid methyl ester polymer with 1,3-butadiene, ethenylbenzene, (1-methylethenyl)benzene and 2-propenenitrile
EINECS	Contact for details

Quality Control

Our production of this advanced copolymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as molecular weight distribution, monomer residue, glass transition temperature (Tg), and solids content are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing assay, viscosity, pH, and other 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 temperatures between 15°C and 25°C (59°F and 77°F). Keep away from heat sources and open flame. For long-term storage, ensure containers are sealed to prevent skin formation or changes in viscosity due to moisture or solvent loss.

Specification

Item	Specification
Appearance	Clear to translucent beads or solution
Solid Content	Contact for details
Viscosity (Brookfield)	Contact for details
pH (for aqueous dispersions)	6.0 - 8.5
Glass Transition Temperature (Tg)	Contact for details
Residual Monomer	< 1000 ppm (each)
Identification (IR)	Conforms to structure

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