Ethyl acrylate-methacrylic acid-tert-butyl acrylate copolymer

Ethyl acrylate-methacrylic acid-tert-butyl acrylate copolymer (CAS 159666-35-0) is an acrylic terpolymer resin used to control rheology and modify surface properties in polymer-based formulations.

It functions as a film-forming and viscosity-building agent across coating, adhesive, and packaging systems. In waterborne and solvent-based coatings, it provides controlled film formation and improves surface leveling.

This material is utilized in architectural and industrial finishes. Adhesive and sealant formulators incorporate it to tune tack, cohesion, and peel strength in pressure-sensitive and structural adhesive systems.

In printing and packaging, it acts as a binder component that supports ink adhesion and substrate compatibility across flexible substrates. This ensures high performance in demanding industrial environments.

Plastics compounders use it as a surface modifier to improve compatibility between polymer matrices and functional additives. This copolymer is typically supplied as a solid resin, powder, or solution.

The form depends on the intended processing route. Technical-grade material is the standard commercial offering, with solution grades available in selected organic solvents to facilitate direct incorporation.

Specifications vary by molecular weight distribution and acid content. These are the primary parameters buyers should confirm against their specific application requirements to ensure optimal performance.