Description

1,4-Benzenedicarboxylic Acid, Polymer With 1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid, 2,2-Dimethyl-1,3-Propanediol And Hexanedioic Acid CAS NO 38702-18-0 is a high-performance, multi-component polyester resin designed for demanding industrial applications. This specialized polymer offers a unique balance of thermal stability, chemical resistance, and mechanical properties, making it a critical raw material for advanced material formulations. It is primarily sought by manufacturers in the coatings, adhesives, and specialty plastics industries seeking to enhance product durability and performance.

Application

• High-Performance Industrial Coatings: Used as a resin binder in powder coatings, coil coatings, and can coatings requiring excellent weatherability, corrosion resistance, and hardness.
• Thermosetting Adhesives and Sealants: Serves as a key component in structural adhesives and sealants where strong bonding, flexibility, and resistance to environmental stress are paramount.
• Engineering Plastics and Composites: Incorporated into composite materials and molded parts to improve heat distortion temperature, dimensional stability, and chemical resistance.
• Electrical Insulation Materials: Utilized in the formulation of wire enamels, insulating varnishes, and encapsulants due to its good dielectric properties and thermal endurance.
• Automotive and Aerospace Components: Applied in under-the-hood parts, interior trim, and aerospace composites that must withstand extreme temperatures and harsh chemicals.
• Specialty Inks and Pigment Dispersions: Acts as a grinding resin or additive to improve pigment wetting, gloss, and adhesion in high-quality printing inks.

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 Hexanedioic Acid
CAS No.	38702-18-0
Molecular Formula	(C8H6O4·C10H6O5·C5H12O2·C6H10O4)x
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(terephthalic acid-co-trimellitic anhydride-co-neopentyl glycol-co-adipic acid); Terephthalic Acid/Trimellitic Anhydride/Neopentyl Glycol/Adipic Acid Copolymer; Polyester Resin from TPA, TMA, NPG, and AA; TPA/TMA/NPG/AA Copolymer; Thermosetting Polyester Resin; Saturated Polyester Resin (Carboxyl-Functional); Alkyd Resin Modifier; Powder Coating Resin Binder
EINECS	Contact for details

Quality Control

Our production of this high-performance polyester resin adheres to strict quality management systems, ensuring batch-to-batch consistency for critical applications. Key parameters such as acid value, hydroxyl value, viscosity, glass transition temperature (Tg), and color are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee compliance with your formulation requirements.

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 heat sources, open flames, and incompatible materials such as strong oxidizing agents. This material is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Acid Value (mg KOH/g)	20 - 50
Hydroxyl Value (mg KOH/g)	Contact for details
Glass Transition Temperature (Tg)	40 - 70 °C
Softening Point (Ring & Ball)	90 - 120 °C
Viscosity (mPa·s, @ 200°C)	Contact for details
Color (Gardner)	≤ 3
Moisture Content	≤ 0.5 %

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