Description

2-Propenoic Acid, 2-Methyl-, Butyl Ester, Polymer With Ethenylbenzene, Ethyl 2-Propenoate And 2- Propenoic Acid CAS NO 30280-55-8 is a high-performance acrylic copolymer designed to deliver exceptional durability and versatility in demanding industrial formulations. This specialized polymer is engineered to provide a critical balance of flexibility, adhesion, and chemical resistance, making it a foundational component for advanced coatings and adhesives. It is essential for manufacturers in the paints & coatings, pressure-sensitive adhesives, and industrial sealants sectors seeking to enhance product performance and longevity.

Application

• Industrial and Protective Coatings: Used as a key film-forming agent in metal primers, machinery enamels, and corrosion-resistant topcoats, offering excellent weatherability and substrate adhesion.
• Pressure-Sensitive Adhesives (PSAs): Serves as a primary polymer backbone for labels, tapes, and graphic films, providing a tunable balance of tack, peel strength, and shear resistance.
• Architectural Paints: Imparts durability, scrub resistance, and low dirt pickup to interior and exterior wall paints and elastomeric coatings.
• Plastic & Wood Coatings: Enhances finish quality, flexibility, and resistance to cracking or yellowing on non-porous and porous substrates.
• Industrial Sealants and Caulks: Contributes to the elasticity, adhesion, and long-term performance of construction and automotive sealants.
• Ink Vehicles for Packaging: Acts as a binder in flexographic and gravure inks, offering good pigment wetting, gloss, and resistance properties.

Basic Information

Product Name	2-Propenoic Acid, 2-Methyl-, Butyl Ester, Polymer With Ethenylbenzene, Ethyl 2-Propenoate And 2- Propenoic Acid
CAS No.	30280-55-8
Molecular Formula	(C8H14O2.C4H6O2.C3H4O2.C8H8)x
Molecular Weight	Polymer - varies by grade
Synonyms	Acrylic copolymer; Butyl methacrylate / Styrene / Ethyl acrylate / Acrylic acid copolymer; Poly(butyl methacrylate-co-styrene-co-ethyl acrylate-co-acrylic acid); BMA/St/EA/AA copolymer; Acrylic resin; Acrylic polymer dispersion; Styrene acrylic copolymer; 2-Methyl-2-propenoic acid butyl ester polymer with ethenylbenzene, ethyl 2-propenoate and 2-propenoic acid
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. Each lot is characterized for critical parameters including monomer content, molecular weight distribution, glass transition temperature (Tg), solids content, viscosity, and pH. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We support compliance with global regulatory frameworks including REACH.

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). Do not freeze. Keep away from heat sources and open flame. For long-term storage under warm conditions, monitor viscosity periodically.

Specification

Item	Specification
Appearance	Milky white liquid dispersion
Solids Content	45 - 55 %
pH	7.0 - 9.0
Viscosity (Brookfield)	500 - 3000 cP
Glass Transition Temperature (Tg)	-10°C to +20°C
Minimum Film Forming Temperature (MFFT)	< 10°C
Particle Size	80 - 200 nm
Residual Monomer	< 500 ppm

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