Description

2-Propenoic Acid, 2-Methyl-, Polymer With Butyl 2-Propenoate And Methyl 2-Methyl-2-Propenoate, Ammonium Salt is a water-soluble, anionic acrylic copolymer supplied as an aqueous solution or dispersion. This versatile polymer is engineered to provide excellent film-forming, binding, and rheology-modifying properties, making it a critical component in formulations requiring durability and performance. It is primarily utilized in the coatings, adhesives, construction chemicals, and textile processing industries where its ammonium salt form offers enhanced compatibility and stability in aqueous systems.

Application

• Architectural and Industrial Coatings: Acts as a primary binder or co-binder in water-based paints, providing excellent adhesion, scrub resistance, and film integrity.
• Adhesives and Sealants: Serves as a key polymer emulsion for pressure-sensitive adhesives (PSAs), laminating adhesives, and caulks, offering good tack and cohesion.
• Construction Chemicals: Used as a redispersible powder or liquid additive in cementitious formulations, tile adhesives, and self-leveling compounds to improve flexibility, water retention, and workability.
• Textile Finishing and Printing: Functions as a binder for pigments and dyes in textile printing pastes and as a finishing agent to impart softness and durability to fabrics.
• Paper Coating and Sizing: Enhances surface strength, printability, and water resistance of paper and paperboard products.
• Leather Processing: Used in finishing formulations to provide a flexible, durable topcoat with good adhesion to the leather substrate.

Basic Information

Product Name	2-Propenoic Acid, 2-Methyl-, Polymer With Butyl 2-Propenoate And Methyl 2-Methyl-2-Propenoate, Ammonium Salt
CAS No.	42884-82-2
Molecular Formula	(C4H6O2.C5H8O2.C4H8O2)x·xH3N
Molecular Weight	Varies (Polymer)
Synonyms	Ammonium Acrylate Copolymer; Ammonium Salt of MMA/BA/MAA Terpolymer; Acrylic Terpolymer Ammonium Salt; Poly(methyl methacrylate-co-butyl acrylate-co-methacrylic acid), ammonium salt; Methacrylic Acid, Polymer with Butyl Acrylate and Methyl Methacrylate, Ammonium Salt; Aqueous Acrylic Dispersion; Waterborne Acrylic Binder; Acrylic Emulsion Polymer.
EINECS	Contact for details

Quality Control

Our production of this acrylic copolymer adheres to strict quality management systems. Each batch is characterized for critical parameters including solid content, pH, viscosity, particle size, and minimum film-forming temperature (MFFT) to ensure consistent performance in your formulations. Comprehensive Certificates of Analysis (COA) documenting these specifications are available upon request, supporting your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at temperatures between 5°C and 30°C (41°F - 86°F). Do not freeze. Under recommended storage conditions, the product is typically stable for 12 months from the date of manufacture. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Milky white liquid dispersion
Solid Content	40 - 50 %
pH (as is, 25°C)	7.0 - 9.0
Viscosity (Brookfield, 25°C)	100 - 2000 mPa·s
Particle Size	80 - 200 nm
Minimum Film Forming Temperature (MFFT)	≤ 10 °C
Residual Monomer	≤ 0.1 %

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