Description

1,3-Benzenedicarboxylic Acid, 5-Sulfo-, 1,3-Dimethyl Ester, Sodium Salt, Polymer With Dimethyl is a specialized sulfonated polyester polymer, valued for its unique combination of ionic character and polymeric structure. This material is engineered to provide excellent dispersing, emulsifying, and film-forming properties in demanding industrial formulations. It is primarily sought by manufacturers in the coatings, textile processing, and specialty chemical synthesis sectors for its ability to modify surface properties and enhance product performance.

Application

• Dispersing Agent: Used in pigment and filler slurries for paints, coatings, and inks to improve stability and prevent agglomeration.
• Textile Auxiliary: Functions as a leveling agent, dye dispersant, or antistatic agent in fiber and fabric treatment processes.
• Co-Additive in Coatings: Enhances the flow, leveling, and substrate wetting properties of industrial and architectural coatings.
• Emulsion Stabilizer: Aids in the formation and stabilization of polymer emulsions and other complex fluid systems.
• Specialty Polymer Intermediate: Serves as a building block for synthesizing advanced ion-exchange resins or functional polymeric materials.
• Detergent & Cleaning Formulations: Contributes to soil suspension and anti-redeposition in specialized industrial cleaning products.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, 5-Sulfo-, 1,3-Dimethyl Ester, Sodium Salt, Polymer With Dimethyl
CAS No.	9069-94-7
Molecular Formula	(C10H7NaO7S · C8H10O4)x
Molecular Weight	Polymer - Contact for details
Synonyms	Sulfonated Polyester; Poly(1,3-benzenedicarboxylic acid, 5-sulfo-, 1,3-dimethyl ester, sodium salt-co-dimethyl terephthalate); Sodium 5-Sulfoisophthalic Acid Dimethyl Ester Polymer; Poly(sodium 5-sulfoisophthalate-co-dimethyl terephthalate); AQ Polymer; Eastman AQ; AQ 55S; Water-Dispersible Polyester
EINECS	Contact for details

Quality Control

Our production of this sulfonated polyester adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent performance characteristics such as sulfonation degree, molecular weight distribution, and ionic content. Certificates of Analysis (COA) documenting key specifications 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. Due to its hygroscopic nature, the container must be kept sealed when not in use to prevent moisture absorption, which can affect flow properties and performance. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Off-white to pale yellow powder or granules
Identification (IR)	Conforms
Solid Content	> 95%
Sulfonation Degree	Contact for details
pH (Aqueous Dispersion)	6.0 - 8.0
Moisture Content (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.