Description

Hexanedioic Acid, Polymer With 1,4-Butanediol, 2,2-Dimethyl-1,3-Propanediol And 1,6-Hexanediol CAS NO 68527-44-6 is a specialized polyester polyol, engineered through the polycondensation of hexanedioic acid (adipic acid) with a blend of diols including 1,4-butanediol, 2,2-dimethyl-1,3-propanediol (neopentyl glycol), and 1,6-hexanediol. This formulation is designed to deliver a precise balance of flexibility, hydrolytic stability, and chemical resistance, making it a critical performance component in advanced polymer systems. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in polyurethane production, where its tailored hydroxyl functionality enables the creation of high-performance, durable end-products.

Application

• High-Performance Polyurethane Coatings: Serves as a key polyol component in the formulation of two-component polyurethane coatings for automotive, industrial, and marine applications, offering excellent weatherability and chemical resistance.
• Elastomers and Sealants: Used in the synthesis of polyurethane elastomers and sealants, providing enhanced flexibility, tensile strength, and durability for gaskets, wheels, and construction materials.
• Adhesives and Binders: A vital raw material for producing polyurethane-based adhesives and binders, contributing to strong adhesion, cohesion, and resistance to environmental stress.
• Thermoplastic Polyurethanes (TPU): Acts as a building block in TPU manufacturing for applications like cable sheathing, hoses, and breathable films, where a combination of toughness and processability is required.
• Specialty Resins for Composites: Employed in the production of unsaturated polyester resins or other composite matrix materials, where its structure can improve impact resistance and reduce moisture uptake.
• Plasticizers and Modifiers: Functions as a polymeric plasticizer or modifier for other polymer systems, such as PVC, to improve low-temperature flexibility and permanence.

Basic Information

Product Name	Hexanedioic Acid, Polymer With 1,4-Butanediol, 2,2-Dimethyl-1,3-Propanediol And 1,6-Hexanediol
CAS No.	68527-44-6
Molecular Formula	(C6H10O4 • C4H10O2 • C5H12O2 • C6H14O2)n
Molecular Weight	Varies (Polymer)
Synonyms	Adipic Acid Copolyester with BDO, NPG, and HDO; Poly(neopentyl glycol-adipate) copolymer; Polyester polyol based on adipic acid, 1,4-butanediol, neopentyl glycol, and 1,6-hexanediol; Adipic Acid/BDO/NPG/HDO Copolymer; Adipate-based Polyester Polyol; CAS 68527-44-6; Hexanedioic acid, polymer with 1,4-butanediol and 2,2-dimethyl-1,3-propanediol and 1,6-hexanediol
EINECS	Contact for details

Quality Control

Our production of this specialty polyester polyol adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as hydroxyl value, acid value, viscosity, and moisture content are rigorously tested. A comprehensive Certificate of Analysis (COA) detailing these specifications is 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); containers must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (mPa·s)	Contact for details
Moisture Content (%)	≤ 0.1
Color (Gardner)	≤ 2

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