Description

1,4-Benzenedicarboxylic Acid, Polymer With 1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And 2,2-Oxybisethanol CAS NO 126191-59-1 is a high-performance, water-dispersible polyester resin designed for superior film formation and adhesion. This specialized polymer is engineered to deliver exceptional durability, chemical resistance, and flexibility in demanding coating formulations. It is a critical raw material for manufacturers in the coatings, inks, and adhesives industries seeking to enhance product performance and environmental compliance.

Application

• Waterborne Industrial Coatings: As a primary film-forming agent for metal, plastic, and wood substrates, providing excellent corrosion resistance and weatherability.
• Flexible Packaging Inks: Used in the formulation of inks for food packaging and labels, offering high gloss, adhesion, and low odor.
• Adhesives and Sealants: Serves as a key component in water-based adhesive systems, contributing to strong bonding and flexibility.
• Can and Coil Coatings: Provides the necessary mechanical properties and chemical resistance for protective coatings on metal containers and architectural panels.
• Overprint Varnishes: Enhances the scuff resistance, gloss, and protective qualities of printed materials.
• Textile and Leather Finishes: Used in coatings to improve the handle, durability, and water repellency of fabrics and leather goods.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And 2,2-Oxybisethanol
CAS No.	126191-59-1
Molecular Formula	(C8H6O4·C10H6O5·C5H12O2·C4H10O3)n
Molecular Weight	Polymer - Contact for details
Synonyms	Water-Dispersible Polyester Resin; AQ Polymer; Polyester Polyol Dispersion; Terephthalic Acid-Isobenzofurandione-Neopentyl Glycol-Diethylene Glycol Copolymer; AQ55; AQ Polymer Resin; Poly(1,4-benzenedicarboxylic acid-co-1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid-co-2,2-dimethyl-1,3-propanediol-co-2,2-oxybisethanol)
EINECS	Contact for details

Quality Control

Our 1,4-Benzenedicarboxylic Acid Polymer is manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including acid value, hydroxyl value, viscosity, solids content, and pH to ensure consistent performance and batch-to-batch reproducibility. Certificates of Analysis (COA) documenting full specifications 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, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Do not freeze. Keep away from heat sources and open flame. Under recommended storage conditions, the product is stable for a minimum of 12 months from the date of manufacture.

Specification

Item	Specification
Appearance	Clear to slightly hazy dispersion
Solids Content	28 - 32 %
pH (at 25°C)	7.5 - 9.5
Viscosity (Brookfield, 25°C)	100 - 500 mPa·s
Acid Value (on solids)	30 - 50 mg KOH/g
Hydroxyl Value (on solids)	40 - 70 mg KOH/g
Particle Size	< 100 nm
Identification (IR)	Conforms

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