Description

1,4-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol And Hexanedioic Acid is a high-performance, saturated polyester polyol resin, commonly known as a branched co-polyester diol. This specialized polymer is engineered to deliver a unique balance of flexibility, hydrolytic stability, and chemical resistance, making it a critical raw material for demanding industrial formulations. It is primarily sought after by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in polyurethane synthesis, where it acts as a key building block for enhancing product durability and performance.

Application

• High-Performance Polyurethane Elastomers: Serves as a soft segment polyol for producing elastomers with excellent mechanical properties, abrasion resistance, and low-temperature flexibility.
• Coatings and Paints: Used in the formulation of durable, flexible, and chemical-resistant coatings for automotive, industrial, and marine applications.
• Adhesives and Sealants: Imparts strong adhesion, flexibility, and longevity to polyurethane-based adhesive and sealant systems.
• Thermoplastic Polyurethanes (TPU): A key component in TPU production for wires, cables, films, and extruded profiles requiring a specific balance of hardness and elasticity.
• Resins for Composite Materials: Can be utilized in the synthesis of polyester resins for reinforced composites.
• Specialty Plasticizers: Acts as a polymeric plasticizer to improve the flexibility and permanence of PVC and other polymers.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol And Hexanedioic Acid
CAS No.	38702-21-5
Molecular Formula	(C8H6O4 • C5H12O2 • C6H10O4)n
Molecular Weight	Polymer - Variable
Synonyms	Poly(neopentyl glycol-co-adipic acid-co-terephthalic acid); Branched Polyester Polyol from Terephthalic Acid, Adipic Acid, and Neopentyl Glycol; Poly(neopentyl glycol adipate terephthalate); NPG-Adipate-Terephthalate Copolyester; Copolyester Polyol NPG/AA/TPA; Terephthalic Acid-Adipic Acid-Neopentyl Glycol Copolymer; Poly(1,6-hexanedioic acid-alt-2,2-dimethyl-1,3-propanediol-alt-1,4-benzenedicarboxylic acid)
EINECS	Contact for details

Quality Control

Our production of this co-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 molecular weight distribution are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are provided with each shipment 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 at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep container tightly sealed when not in use to prevent moisture absorption, which can affect product properties.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (mPa·s)	Contact for details
Water Content (%)	≤ 0.1
Color (Gardner)	≤ 3
Identification (IR)	Conforms

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