Description

1,4-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol And 1,2-Ethanediol is a high-performance, saturated polyester polyol based on terephthalic acid. This specialized polymer is valued for its excellent chemical resistance, mechanical strength, and thermal stability, making it a critical building block for advanced material formulations. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producing high-grade polyurethane resins and specialty plastics.

Application

• Polyurethane Resins: A key raw material for producing high-performance rigid and flexible polyurethane foams, elastomers, and coatings.
• Industrial Coatings: Used in formulating durable powder coatings, coil coatings, and can coatings that require excellent weatherability and chemical resistance.
• Adhesives & Sealants: Imparts superior adhesion, flexibility, and durability in structural adhesives, laminating adhesives, and high-performance sealants.
• Engineering Plastics: Serves as a polyol component in the synthesis of thermoplastic polyurethanes (TPU) and other specialty engineering polymers.
• Elastomers: Used in the production of castable and millable polyurethane elastomers for industrial parts, rollers, and wheels.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composite systems.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol And 1,2-Ethanediol
CAS No.	26780-49-4
Molecular Formula	(C8H6O4 · C5H12O2 · C2H6O2)n
Molecular Weight	Contact for details
Synonyms	Terephthalic Acid, Polymer with Neopentyl Glycol and Ethylene Glycol; Poly(neopentyl glycol-co-ethylene glycol terephthalate); Polyester Polyol from Terephthalic Acid, NPG, and EG; TPA-NPG-EG Polyester Polyol; Saturated Polyester Polyol; Poly(ethylene glycol-co-neopentyl glycol terephthalate); Polyol based on Terephthalic Acid; CAS 26780-49-4
EINECS	Contact for details

Quality Control

Our production of this polyester polyol adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as hydroxyl value, acid value, viscosity, and color are rigorously tested. Certificates of Analysis (COA) documenting all specifications are provided with each shipment. We support customer audits and can tailor specifications to meet specific application 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 / 59-77°F). Keep away from strong acids and organic solvents. The product is moisture-sensitive; ensure containers are sealed when not in use to prevent absorption of atmospheric moisture which may affect product performance.

Specification

Item	Specification
Appearance	White to off-white flakes or solid
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 75°C (mPa·s)	Contact for details
Color (Gardner)	≤ 2
Moisture Content (%)	≤ 0.1
Glass Transition Temperature (Tg)	Contact for details

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