Description

1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 1,3-isobenzofurandione, benzoate is a specialized, high-performance polyester resin designed for demanding industrial applications. This engineered polymer offers a unique balance of chemical resistance, thermal stability, and mechanical properties, making it a critical component in advanced material formulations. It is primarily sought after by manufacturers in the coatings, adhesives, and specialty plastics industries for creating durable, high-quality finished products.

Application

• High-Performance Industrial Coatings: Used as a key resin in powder coatings, coil coatings, and can coatings, providing excellent weatherability, corrosion resistance, and film hardness.
• Thermosetting Adhesives and Sealants: Serves as a base polymer for structural adhesives and sealants requiring strong bonding, flexibility, and resistance to solvents and environmental stress.
• Engineered Plastic Composites: Incorporated as a modifier or cross-linking agent in composite materials to enhance thermal stability, dimensional integrity, and chemical resistance.
• Electrical Insulation Materials: Utilized in the formulation of wire enamels and insulating varnishes due to its good dielectric properties and thermal endurance.
• Automotive and Aerospace Components: Found in under-the-hood parts, interior trim coatings, and composite panels where durability under harsh conditions is paramount.
• Specialty Inks and Overprint Varnishes: Acts as a film-forming agent in inks and varnishes that require fast curing, high gloss, and resistance to abrasion and chemicals.

Basic Information

Product Name	1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 1,3-isobenzofurandione, benzoate
CAS No.	90326-93-5
Molecular Formula	(C8H6O4 · C5H12O2 · C6H14O3 · C6H10O4 · C8H4O3 · C7H6O2)n
Molecular Weight	Polymer - Variable
Synonyms	Poly(1,3-benzenedicarboxylic acid-co-2,2-dimethyl-1,3-propanediol-co-2-ethyl-2-(hydroxymethyl)-1,3-propanediol-co-hexanedioic acid-co-1,3-isobenzofurandione) benzoate; Isophthalic Acid-NPG-TMP-Adipic Acid-Trimellitic Anhydride Benzoate Copolymer; Polyester Resin, Isophthalic Acid Type, Benzoate Terminated; Benzoate-Terminated Polyester Polyol; Copolymer of Isophthalic Acid, Neopentyl Glycol, Trimethylolpropane, Adipic Acid, Trimellitic Anhydride, and Benzoic Acid; Polyester Polyol Resin (Benzoate Ester); 90326-93-5
EINECS	Contact for details

Quality Control

Our production of this specialty polyester resin adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including acid value, hydroxyl value, viscosity, glass transition temperature (Tg), and color. Certificates of Analysis (COA) documenting these specifications are provided with every shipment. Our quality system is designed to support formulations requiring compliance with relevant industry standards for coatings and polymers.

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). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The product may be sensitive to moisture over prolonged periods; ensure containers are sealed after each use.

Specification

Item	Specification
Appearance	Pale yellow to amber solid or viscous liquid
Acid Value (mg KOH/g)	≤ 10.0
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (at 25°C)	Specified per grade
Glass Transition Temperature (Tg)	Specified per grade
Color (Gardner)	≤ 4
Solid Content (%)	Contact for details
Solubility	Soluble in common organic solvents

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