Description

1,3-Benzenedicarboxylic Acid, 5-Sulfo-, Monosodium Salt, Polymer With 1,3-Benzenedicarboxylic Acid And 2,2'-Oxybis(Ethanol) is a high-performance, water-soluble sulfonated polyester polymer. This specialized polymer is engineered to deliver exceptional dispersing, emulsifying, and film-forming properties in demanding industrial formulations. It is a critical raw material for manufacturers in the coatings, textile, and construction chemical industries seeking to enhance product performance and stability.

Application

• Coatings & Inks: Acts as a highly effective dispersant and stabilizer for pigments and fillers in water-based architectural and industrial coatings, improving color development and shelf life.
• Textile Processing: Used as a dyeing auxiliary and leveling agent to promote uniform dye uptake and enhance color fastness on synthetic and natural fibers.
• Construction Chemicals: Functions as a superplasticizer and water-reducing agent in cementitious systems, improving workability and final strength of concrete and mortar.
• Adhesives & Sealants: Serves as a rheology modifier and tackifier in aqueous adhesive formulations, providing controlled viscosity and improved bonding characteristics.
• Paper & Pulp Industry: Utilized as a retention aid and drainage promoter in papermaking processes to improve efficiency and paper quality.
• Ceramic Processing: Acts as a binder and deflocculant in ceramic slurries, ensuring uniform particle suspension and stable rheology for casting or spraying.

Basic Information

Item	Detail
Product Name	1,3-Benzenedicarboxylic Acid, 5-Sulfo-, Monosodium Salt, Polymer With 1,3-Benzenedicarboxylic Acid And 2,2'-Oxybis(Ethanol)
CAS No.	54590-62-4
Molecular Formula	(C8H4NaO7S · C8H6O4 · C4H10O3)n
Molecular Weight	Polymer - Contact for details
Synonyms	Sulfonated Polyester; Poly(1,3-benzenedicarboxylic acid-co-2,2'-oxybis(ethanol) ester with 5-sulfo-1,3-benzenedicarboxylic acid monosodium salt); Water-soluble Sulfonated Polyester Resin; AQ Polymer; AQ55D (Trade Name); SPET (Sulfonated Polyethylene Terephthalate); Sodium 5-Sulfoisophthalate-Diethylene Glycol-Terephthalic Acid Copolymer
EINECS	Contact for details

Quality Control

Our production of 1,3-Benzenedicarboxylic Acid, 5-Sulfo-, Monosodium Salt, Polymer With 1,3-Benzenedicarboxylic Acid And 2,2'-Oxybis(Ethanol) adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of sulfonation degree, molecular weight distribution, viscosity, and pH. Certificates of Analysis (COA) documenting all key parameters are provided to guarantee compliance with your technical specifications and support your own quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C/59-77°F). Keep the container tightly sealed when not in use to prevent moisture absorption, which can affect product performance. Store away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow flakes or powder
Identification (IR)	Conforms to structure
Solid Content	≥ 98.0 %
pH (5% Aqueous Solution)	4.0 - 7.0
Viscosity (25°C, 30% Solution)	Contact for details
Sulfonation Degree	Contact for details
Moisture Content (Karl Fischer)	≤ 2.0 %
Ash Content	Contact for details

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