Description

1,3-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, Hexanedioic Acid And 1,6-Hexanediol CAS NO 68492-72-8 is a high-performance, saturated polyester polyol copolymer. This engineered polymer is valued for its excellent balance of mechanical properties, chemical resistance, and processing versatility, making it a critical intermediate in advanced material formulations. It is primarily sought after by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for specialty polyurethane applications.

Application

• High-Performance Polyurethane Coatings: Serves as a key polyol component in formulations for durable industrial, automotive, and protective coatings requiring excellent weatherability and chemical resistance.
• Elastomers and Sealants: Used in the synthesis of polyurethane elastomers and sealants that demand high tensile strength, flexibility, and hydrolysis resistance.
• Adhesives and Binders: Provides robust bonding characteristics and thermal stability in structural and specialty adhesive systems.
• Thermoplastic Polyurethanes (TPU): Acts as a building block for TPUs used in films, fibers, and molded parts requiring a specific balance of hardness and elasticity.
• Composite Materials: Incorporated as a resin modifier or cross-linking agent in composite matrices to enhance performance properties.
• Specialty Resins: Utilized in the production of engineered polyester resins for industrial and electronic applications.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, Hexanedioic Acid And 1,6-Hexanediol
CAS No.	68492-72-8
Molecular Formula	(C8H6O4 · C5H12O2 · C6H10O4 · C6H14O2)n
Molecular Weight	Polymer - Variable
Synonyms	Poly(neopentyl glycol-isophthalate-adipate-hexanediol); Polyester polyol from isophthalic acid, adipic acid, neopentyl glycol, and 1,6-hexanediol; Saturated polyester polyol copolymer; Isophthalic-Adipic Acid Copolyester with NPG and HDO; CAS 68492-72-8 Polymer; Poly(hexanediol-neopentyl glycol isophthalate adipate); Aliphatic-aromatic copolyester polyol
EINECS	Contact for details

Quality Control

Our production of this polyester polyol copolymer adheres to stringent 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 controlled. Certificates of Analysis (COA) detailing all relevant specifications are provided with each shipment. We support compliance with global regulatory frameworks including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent moisture absorption, which can affect product performance. Keep away from strong oxidizing agents and heat sources.

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
Molecular Weight (Mn)	Contact for details

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