Description

Hexanedioic Acid, Polymer 2,2'-[1,2-Ethanediylbis(Oxy)]Bis[Ethanol] And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol CAS NO 31587-43-6 is a specialized polymeric ester, commonly known as a polyester polyol, derived from adipic acid and a blend of diethylene glycol and trimethylolpropane. This compound is valued for its role as a key building block in the synthesis of high-performance polyurethane resins, offering excellent control over polymer flexibility, crosslink density, and final material properties. It is primarily utilized by formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to develop products with specific durability, chemical resistance, and mechanical characteristics.

Application

• Polyurethane Coatings: Serves as a core polyol component in the formulation of high-solid, two-component polyurethane coatings for industrial, automotive, and protective applications.
• Adhesives & Sealants: Used to synthesize polyurethane prepolymers for structural adhesives, flexible sealants, and bonding agents, providing strong adhesion and elasticity.
• Elastomers: A critical raw material in the production of castable and thermoplastic polyurethane elastomers (TPU) for wheels, gaskets, and industrial parts.
• Resin Modification: Acts as a reactive modifier in alkyd and polyester resin systems to enhance flexibility, weatherability, and impact resistance.
• Foam Systems: Employed in the formulation of specialty flexible and microcellular polyurethane foams requiring specific resilience and load-bearing properties.

Basic Information

Item	Details
Product Name	Hexanedioic Acid, Polymer 2,2'-[1,2-Ethanediylbis(Oxy)]Bis[Ethanol] And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol
CAS No.	31587-43-6
Molecular Formula	(C6H10O4 · C6H14O4 · C6H14O3)n
Molecular Weight	Polymer - Variable
Synonyms	Adipic Acid, Polymer with Diethylene Glycol and Trimethylolpropane; Poly(adipic acid-co-diethylene glycol-co-trimethylolpropane) Ester; Polyester Polyol from Adipic Acid, Diethylene Glycol, and Trimethylolpropane; TMP-DEG-Adipate Polyol; Adipic Acid/DEG/TMP Copolyester; CAS 31587-43-6; Hydroxyl-Terminated Polyester
EINECS	Contact for details

Quality Control

Our polyester polyol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in hydroxyl value, acid value, viscosity, and moisture content, which are critical parameters for predictable polyurethane reactions. Certificates of Analysis (COA) detailing these specifications are provided with every shipment to support your quality assurance and production planning.

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). To prevent moisture absorption and potential property changes, containers must be kept tightly sealed when not in use. Under these conditions, the product remains stable for at least 24 months from the date of manufacture.

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 (cPs)	Contact for details
Water Content (%)	≤ 0.1
Color (Gardner)	≤ 3

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