Description

Sulfonated Aliphatic Polyester CAS NO 1639-66-3 is a specialized anionic polymer surfactant engineered for superior performance in demanding aqueous systems. Its unique structure provides exceptional dispersing, emulsifying, and sequestering properties, making it a critical additive for enhancing process stability and product quality. This high-performance chemical is essential for industries requiring robust water treatment, advanced pigment dispersion, and effective scale inhibition.

Application

• Dispersing Agent: Primary application as a highly effective dispersant for inorganic pigments (e.g., titanium dioxide, iron oxides), fillers (calcium carbonate, kaolin clay), and carbon black in aqueous coatings, inks, and construction materials.
• Water Treatment Chemical: Acts as a scale and corrosion inhibitor in industrial cooling water systems, boiler water, and reverse osmosis membranes by sequestering calcium, magnesium, and other multivalent cations.
• Detergent & Cleaner Formulation: Used in industrial and institutional cleaning products for its superior soil suspension and anti-redeposition properties, enhancing the efficacy of phosphate-free detergents.
• Textile Auxiliary: Serves as a leveling agent, dispersant, and anti-precipitant in dyeing processes, particularly for disperse and reactive dyes, ensuring uniform color and preventing specking.
• Oilfield Chemical: Employed in drilling muds and completion fluids as a thinner and dispersant to control rheology and prevent clay flocculation.
• Paper Manufacturing: Functions as a retention aid and dispersant in paper coating slips and pulp processing to improve sheet formation and pigment distribution.
• Ceramic & Concrete Admixture: Enhances the workability and fluidity of ceramic slips and concrete mixes by reducing water demand and improving particle distribution.

Basic Information

Item	Details
Product Name	Sulfonated Aliphatic Polyester
CAS No.	1639-66-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Sulfonated Polyester; Aliphatic Sulfopolyester; Polyester Sulfonate; Anionic Polyester Surfactant; Water-Soluble Sulfopolyester; Dispersant 1639-66-3; AQ Polymer Surfactant
EINECS	Contact for details

Quality Control

Our Sulfonated Aliphatic Polyester is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent performance, including assay, viscosity, pH, and sulfonation degree. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at ambient temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Amber to brown viscous liquid
Solid Content	30 - 50 %
pH (as is, 25°C)	6.0 - 8.0
Viscosity (Brookfield, 25°C)	500 - 3000 cPs
Sulfonation Degree	> 90 %
Density (25°C)	1.10 - 1.25 g/cm³

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