Description

1,4-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 1,6-Hexanediol CAS NO 68224-13-5 is a high-performance, branched polyester polyol engineered for demanding industrial applications. This specialized polymer offers a unique balance of properties derived from its multi-component structure, making it a critical intermediate for advanced material formulations. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as polyurethane producers, for developing products with enhanced durability, flexibility, and chemical resistance.

Application

• High-Performance Polyurethane Coatings: Serves as a key polyol component in two-component (2K) polyurethane coatings for automotive, industrial, and marine applications, contributing to excellent gloss retention, weatherability, and mechanical strength.
• Elastomers and Sealants: Used in the formulation of flexible polyurethane elastomers and sealants, where its structure imparts good low-temperature flexibility and hydrolytic stability.
• Adhesives and Binders: Acts as a reactive building block in polyurethane-based adhesives and binders, enhancing adhesion to various substrates and improving overall bond strength.
• Resin Modification: Employed to modify the properties of other polymer resins, such as alkyds or polyesters, to improve flexibility, impact resistance, or compatibility.
• Specialty Foams: Can be utilized in the production of specialty microcellular or rigid polyurethane foams requiring specific mechanical or thermal properties.
• Industrial and Protective Coatings: A vital ingredient in corrosion-resistant and chemical-resistant coating systems for pipes, tanks, and industrial flooring.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 1,6-Hexanediol
CAS No.	68224-13-5
Molecular Formula	(C8H6O4 · C5H12O2 · C6H14O4 · C6H14O2)n
Molecular Weight	Polymer - Variable
Synonyms	Poly(neopentyl glycol-co-trimethylolpropane-co-hexanediol terephthalate); Terephthalic Acid Polymer with Neopentyl Glycol, Trimethylolpropane, and 1,6-Hexanediol; Polyester Polyol from TPA, NPG, TMP, and HDO; Branched Polyester Polyol; NPG/TMP/HDO Terephthalate Polyester; CAS 68224-13-5; Terephthalic Acid-Neopentyl Glycol-Trimethylolpropane-Hexanediol Copolymer
EINECS	Contact for details

Quality Control

Our production of this 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 color are rigorously monitored against internal specifications. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with each shipment to support your quality assurance and formulation processes.

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

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