Description

1,3-Benzenedicarboxylic acid, 5-sulfo-, monosodium salt, polymer with 1,3-benzenedicarboxylic acid, 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol and 1,2-ethanediol is a high-performance, water-soluble sulfonated polyester polymer. This specialized copolymer is engineered to deliver exceptional dispersing, emulsifying, and film-forming properties, making it a critical additive in advanced industrial formulations. It is essential for manufacturers in the coatings, inks, adhesives, and textile chemical sectors seeking to enhance product stability, compatibility, and performance under demanding conditions.

Application

• Water-Based Industrial Coatings: Acts as a dispersant and stabilizer for pigments and fillers, improving color development and preventing settling.
• Inkjet Inks and Printing Inks: Enhances dye solubility, jetting performance, and color uniformity on various substrates.
• Textile Processing: Used as a dyeing auxiliary and leveling agent to promote even dye uptake and fastness on synthetic fibers.
• Adhesives and Sealants: Improves the wetting and bonding characteristics of aqueous adhesive systems.
• Polymer Emulsions: Serves as a functional comonomer or additive to modify the hydrophilicity and ionic character of acrylic or polyester dispersions.
• Paper Coatings: Functions as a binder and processing aid to improve coating smoothness and printability.
• Ceramic and Clay Dispersions: Aids in the deflocculation and stabilization of particulate suspensions.

Basic Information

Item	Details
Product Name	1,3-Benzenedicarboxylic acid, 5-sulfo-, monosodium salt, polymer with 1,3-benzenedicarboxylic acid, 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol and 1,2-ethanediol
CAS No.	73144-93-1
Molecular Formula	(C8H5O7SNa · C8H6O4 · C8H6O4 · C5H12O2 · C2H6O2)x
Molecular Weight	Polymer - Contact for details
Synonyms	Sulfonated Polyester; Poly(1,4-cyclohexylenedimethylene isophthalate-co-sulfoisophthalate); 5-Sulfoisophthalic Acid Monosodium Salt Polyester; AQ Polymer; Water-Dispersible Polyester; SPET; Polyester Sulfonate; Eastman AQ Polymer
EINECS	Contact for details

Quality Control

Our production of this sulfonated polyester adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including sulfonation degree, acid number, molecular weight distribution, and solids content. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent moisture absorption, which may affect product performance.

Specification

Item	Specification
Appearance	Off-white to light yellow flakes or powder
Identification (IR)	Conforms to structure
Solids Content	≥ 95.0 %
Acid Value	Contact for details
Sulfonation Degree	Contact for details
pH (in solution)	4.0 - 7.0
Moisture Content	≤ 5.0 %

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