Description

5-Sulfo-1,3-benzenedicarboxylic acid, monosodium salt polymer with 1,3-benzene dicarboxylic acid, 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol and 3-hydroxy-2,2- dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate is a high-performance, water-soluble sulfonated polyester copolymer designed for demanding industrial applications. Its unique polymeric structure, incorporating sulfonate and carboxylate groups, provides exceptional dispersing, sequestering, and film-forming properties. This specialty polymer is essential for manufacturers in sectors such as coatings, textiles, and water treatment, where consistent performance and material stability are critical.

Application

• Dispersant and Grinding Aid in the production of pigments, dyes, and ceramic slurries for improved color strength and particle stability.
• Scale Inhibitor and Antiscalant in industrial water treatment and cooling tower systems to prevent mineral deposition.
• Textile Auxiliary used as a dye leveling agent, dispersant for polyester dyeing, and finishing agent to enhance fabric handle.
• Co-Additive in Coatings and Inks to improve pigment wetting, dispersion stability, and gloss in aqueous formulations.
• Detergent Builder in industrial and institutional cleaning formulations for enhanced sequestration of hard water ions.
• Additive for Construction Materials such as cement and gypsum to act as a plasticizer and water reducer.

Basic Information

Product Name	5-Sulfo-1,3-benzenedicarboxylic acid, monosodium salt polymer with 1,3-benzene dicarboxylic acid, 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol and 3-hydroxy-2,2- dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate
CAS No.	124382-55-4
Molecular Formula	(C9H7NaO7S · C8H6O4 · C8H6O4 · C5H12O2 · C2H6O2 · C10H20O4)n
Molecular Weight	Polymeric substance (Contact for details)
Synonyms	Sulfonated Polyester Copolymer; Poly(1,4-benzenedicarboxylic acid-co-5-sulfo-1,3-benzenedicarboxylic acid monosodium salt-co-2,2-dimethyl-1,3-propanediol-co-ethanediol); Water-soluble sulfonated polyester; Sodium 5-sulfoisophthalate copolymer; SPES (Sulfonated Polyester); AQ polymer derivative; Dispersant polymer SDP; Textile dyeing auxiliary polymer
EINECS	Contact for details

Quality Control

Our production of this sulfonated polyester copolymer adheres to strict quality management systems. Every batch is characterized and tested to ensure consistent performance in viscosity, sulfonate content, and solubility. Certificates of Analysis (COA) detailing key parameters such as solid content, pH, and ionic character 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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow powder or flakes
Identification (IR)	Conforms to structure
Solid Content	≥ 95.0 %
pH (1% Aqueous Solution)	6.0 - 8.0
Sulfonate Content	Contact for details
Viscosity (Specific Conditions)	Contact for details
Moisture (Karl Fischer)	≤ 5.0 %
Ash Content	Contact for details

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