Description

1,4-Benzenedicarboxylic Acid, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 2,2'-Oxybis[Ethanol] is a specialized polyester polyol, a key polymeric intermediate synthesized from terephthalic acid and a blend of polyhydric alcohols. This compound matters for its role as a versatile building block, offering a unique balance of rigidity from the aromatic component and flexibility from the aliphatic polyols. Industrial manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) sectors, as well as polyurethane foam producers, require this polymer for formulating high-performance materials with enhanced mechanical properties and chemical resistance.

Application

• Polyurethane Elastomers: Serves as a critical polyol component for producing durable, abrasion-resistant elastomers used in industrial wheels, rollers, and gaskets.
• Coatings and Paints: Used in high-solid and solvent-borne polyurethane coatings, providing excellent hardness, gloss retention, and weatherability for automotive, industrial, and marine finishes.
• Adhesives and Sealants: Imparts strong adhesion and flexibility in polyurethane-based adhesive and sealant formulations for construction and automotive assembly.
• Flexible and Rigid Foams: Acts as a modifying polyol to tailor the density, resilience, and load-bearing properties of polyurethane foams for insulation and cushioning applications.
• Resin Modifier: Employed to enhance the thermal stability and mechanical strength of unsaturated polyester and other thermoset resins.
• Industrial Casting and Molding: Used in the production of cast polyurethane parts, providing a favorable processing viscosity and final product performance.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 2,2'-Oxybis[Ethanol]
CAS No.	33408-37-6
Molecular Formula	(C8H6O4 · C6H14O3 · C4H10O3)n
Molecular Weight	Polymer - Variable
Synonyms	Terephthalic Acid, Polymer with Trimethylolpropane and Diethylene Glycol; Poly(oxy-1,2-ethanediyloxyterephthaloyloxy-1,2-ethanediyloxy-2-ethyl-2-(hydroxymethyl)-1,3-propanediyl); Polyester polyol from TPA, TMP, and DEG; Terephthalate Polyester Polyol; Aromatic Polyester Polyol; TMP-DEG-Terephthalate Copolymer; Poly(terephthalate-co-trimethylolpropane-co-diethylene glycol); Polyol 33408-37-6
EINECS	Contact for details

Quality Control

Our production of this polyester polyol adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as hydroxyl value, acid value, viscosity, and color index are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. While produced under a quality system, this industrial-grade polymer can be tailored to meet specific customer requirements and application standards.

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. Keep away from heat sources and incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 4
Hydroxyl Value (mg KOH/g)	150 - 250
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (cPs)	2,000 - 15,000
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.