Description

1,4-Benzenedicarboxylic Acid, Polymer With 1,2-Ethanediol, 2,2'-[1,2-Ethanediylbis(Oxy)]Bis[Ethanol] And 2,2'-Oxybis[Ethanol] CAS NO 71296-98-5 is a specialized, high-performance polyester polyol copolymer. This engineered polymer is valued for its versatile reactivity and ability to impart specific physical properties to final formulations. It is primarily sought after by manufacturers in the polyurethane, coatings, adhesives, and elastomers industries for creating products with tailored flexibility, durability, and chemical resistance.

Application

• Polyurethane Elastomers: As a key polyol component for producing flexible, high-resilience, and abrasion-resistant elastomers used in industrial wheels, rollers, and seals.
• Coatings and Adhesives: Used in formulating high-performance, two-component polyurethane coatings and adhesives that require excellent adhesion, flexibility, and chemical stability.
• Thermoplastic Polyurethanes (TPU): Serves as a building block in the synthesis of TPUs for applications in films, hoses, cable sheathing, and consumer goods.
• Sealants and Caulks: Imparts durability and weatherability to polyurethane-based sealants used in construction and automotive applications.
• Binder Systems: Employed in composite materials and foundry binders where controlled reactivity and polymer strength are critical.
• Specialty Resins: Acts as a reactive intermediate for synthesizing custom resins with specific hydroxyl functionality and molecular architecture.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 1,2-Ethanediol, 2,2'-[1,2-Ethanediylbis(Oxy)]Bis[Ethanol] And 2,2'-Oxybis[Ethanol]
CAS No.	71296-98-5
Molecular Formula	Contact for details
Molecular Weight	Variable (Polymer)
Synonyms	Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, polymer with 1,4-benzenedicarboxylic acid and 1,2-ethanediol; Polyethylene glycol terephthalate-polyethylene glycol block copolymer; PEG-PET copolymer; Polyester polyol based on terephthalic acid, ethylene glycol, and diethylene glycol; Terephthalic acid-ethylene glycol-diethylene glycol copolymer; Poly(ethylene terephthalate)-poly(ethylene glycol) copolymer; Hydroxyl-terminated polyester copolymer; Multifunctional polyester polyol.
EINECS	Contact for details

Quality Control

Our production of this specialty polyester polyol adheres to strict quality management protocols. Each batch is characterized for critical parameters including hydroxyl value, acid value, viscosity, and moisture content to ensure consistent performance and batch-to-batch reproducibility. Comprehensive Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support our clients' needs for regulatory compliance and supply chain transparency.

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. For long-term storage, consider using a dry inert gas blanket.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Moisture Content (%)	≤ 0.1
Viscosity (cP @ 25°C)	Contact for details
Color (Gardner)	≤ 3

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