Description

2-Propenoic Acid, 2-Methyl-, Polymer With Ethyl 2-Propenoate And Methyl 2-Methyl-2-Propenoate, Ammonium Salt is a water-soluble, anionic acrylic copolymer supplied as an ammonium salt. This versatile polymer is engineered to deliver excellent film-forming, binding, and thickening properties in aqueous systems. It is a critical raw material for formulators in the coatings, adhesives, and construction chemical industries seeking to enhance product performance while meeting stringent environmental and regulatory standards.

Application

• Water-Based Paints & Coatings: Acts as a primary binder and film-former, providing excellent adhesion, scrub resistance, and durability on various substrates.
• Architectural & Construction Chemicals: Used in cement modifiers, tile adhesives, and waterproofing membranes to improve flexibility, water resistance, and workability.
• Adhesives & Sealants: Serves as a key component in pressure-sensitive adhesives (PSAs) and caulks, offering strong tack and cohesive strength.
• Textile & Leather Finishing: Functions as a binder for pigments and finishes, enhancing color fastness, hand feel, and durability.
• Paper Coatings: Improves surface strength, printability, and gloss in paper coating formulations.
• Personal Care & Cosmetics: Utilized as a film-forming agent and thickener in hair styling products, sunscreens, and skin care formulations.

Basic Information

Item	Details
Product Name	2-Propenoic Acid, 2-Methyl-, Polymer With Ethyl 2-Propenoate And Methyl 2-Methyl-2-Propenoate, Ammonium Salt
CAS No.	55989-05-4
Molecular Formula	(C4H6O2.C5H8O2.C4H6O2)x·xNH3
Molecular Weight	Varies (Polymer)
Synonyms	Ammonium Acrylate Copolymer; Ammonium Salt of MMA/EA/MAA Terpolymer; Acrylic Terpolymer Ammonium Salt; Poly(methyl methacrylate-co-ethyl acrylate-co-methacrylic acid) ammonium salt; Ammonium Methacrylate/Acrylate Copolymer; Aqueous Acrylic Dispersion Binder; Waterborne Acrylic Polymer; CAS 55989-05-4
EINECS	Contact for details

Quality Control

Our production of this acrylic copolymer adheres to strict quality management systems. Every batch is tested against rigorous in-house specifications to ensure consistent performance in viscosity, solids content, pH, and mechanical properties. Certificates of Analysis (COA) documenting these parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can alter product characteristics. Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Solid Content	40 - 50 %
pH (as supplied)	7.0 - 9.0
Viscosity (Brookfield)	1000 - 5000 cP
Glass Transition Temperature (Tg)	Approx. 10 - 30 °C
Ionic Character	Anionic

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