Description

1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 2,2'-[(1-methylethylidene) bis(4,1-phenyleneoxy)]bis[ethanol] is a high-performance, branched polyester polyol designed for demanding industrial applications. This specialized polymer offers a unique balance of flexibility, chemical resistance, and thermal stability, making it a critical raw material for advanced material formulations. It is primarily sought after by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for the production of specialty polyurethanes and composite materials.

Application

• High-Performance Polyurethane Coatings: Used as a key polyol component in two-component (2K) polyurethane coatings for automotive, industrial, and marine applications, providing excellent durability, gloss, and chemical resistance.
• Specialty Adhesives and Sealants: Imparts flexibility and adhesion in formulated adhesives and sealants for construction, automotive assembly, and electronics.
• Elastomer Production: Serves as a building block for castable and thermoplastic polyurethane elastomers used in wheels, gaskets, and industrial parts.
• Composite Materials: Utilized in resin formulations for fiber-reinforced plastics (FRP) and other composite structures requiring tailored mechanical properties.
• Industrial and Protective Coatings: A vital component in corrosion-resistant and weatherable coating systems for pipelines, storage tanks, and infrastructure.
• Flexible Foams and Cushioning: Can be formulated into flexible polyurethane foams for specialized cushioning applications.

Basic Information

Product Name	1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 2,2'-[(1-methylethylidene) bis(4,1-phenyleneoxy)]bis[ethanol]
CAS No.	129828-33-7
Molecular Formula	(C8H6O4·C5H12O2·C6H14O3·C6H10O4·C20H26O4)n
Molecular Weight	Polymer - Variable
Synonyms	Polyester polyol based on isophthalic acid, neopentyl glycol, trimethylolpropane, adipic acid, and bisphenol A ethoxylate; Branched polyester polyol; Isophthalic acid/adipic acid/TMP/NPG/BPA-EO copolymer; Poly(isophthalate-co-adipate) polyol; BPA-EO modified polyester polyol; CAS 129828-33-7; Polyol resin for polyurethanes
EINECS	Contact for details

Quality Control

Our production of this advanced 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 color are rigorously tested against internal specifications. A comprehensive Certificate of Analysis (COA) detailing these results 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/59-77°F). This product 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 heat sources and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
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
Identification (IR)	Conforms

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