Description

Poly(Oxy-1,4-Butanediyl), .Alpha.-Hydro-.Omega.-Hydroxy-, Polymer With 2,4-Diisocyanato-1-Methylbenzene is a specialized polyurethane prepolymer derived from poly(tetramethylene ether) glycol (PTMEG) and toluene diisocyanate (TDI). This compound is valued for its role as a key intermediate in formulating high-performance elastomers, adhesives, and coatings that require excellent hydrolytic stability, low-temperature flexibility, and mechanical resilience. It is primarily sought by manufacturers in the polyurethane, specialty adhesives, and industrial coating sectors for producing durable goods.

Application

• Polyurethane Elastomers: A critical building block for manufacturing castable and thermoplastic polyurethane (TPU) elastomers used in industrial wheels, seals, gaskets, and hoses.
• High-Performance Adhesives & Sealants: Serves as a prepolymer in formulating moisture-curing and two-component polyurethane adhesives and sealants with strong bonding and flexibility.
• Industrial & Protective Coatings: Used in coating formulations that demand abrasion resistance, chemical resistance, and durability for floors, pipelines, and industrial equipment.
• Fiber & Fabric Treatment: Employed in the production of synthetic leather, waterproof textiles, and other coated fabrics requiring a flexible, durable polymer layer.
• Automotive Components: Integral to the production of under-the-hood components, bushings, and other parts requiring vibration damping and longevity.
• Footwear & Sporting Goods: Used in the synthesis of materials for shoe soles, ski boots, and other items needing a balance of flexibility and toughness.

Basic Information

Product Name	Poly(Oxy-1,4-Butanediyl), .Alpha.-Hydro-.Omega.-Hydroxy-, Polymer With 2,4-Diisocyanato-1-Methylbenzene
CAS No.	9050-83-3
Molecular Formula	(C4H8O)n•C9H6N2O2
Molecular Weight	Varies (Polymer)
Synonyms	PTMEG-TDI Prepolymer; Poly(tetramethylene ether) glycol toluene diisocyanate polymer; PolyTHF-TDI Adduct; Polytetramethylene Ether Glycol-TDI Copolymer; TDI-terminated PTMEG; α-Hydro-ω-hydroxypoly(oxy-1,4-butanediyl) polymer with 2,4-diisocyanato-1-methylbenzene; Polyurethane Prepolymer based on PTMEG and TDI
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, and residual monomer levels are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and physical specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). Under these conditions, the product should be used promptly after opening to prevent moisture absorption, which can affect performance. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Specific Gravity @ 25°C	Contact for details
Residual TDI Monomer	< 0.5% (or per customer requirement)
Water Content	< 0.05%

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