Description

Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.-Hydro-.Omega.-Hydroxy-, Polymer With 2,4-Diisocyanato-1-Methylbenzene is a specialized polyurethane prepolymer derived from a polyether polyol and toluene diisocyanate (TDI). This compound matters as a critical reactive intermediate, offering a precise balance of isocyanate content and molecular weight for controlled polymer network formation. It is primarily needed by manufacturers in the adhesives, sealants, coatings, and elastomers industries seeking to formulate high-performance polyurethane systems with specific mechanical and chemical resistance properties.

Application

• Polyurethane Adhesives & Sealants: Serves as a key prepolymer component for formulating high-strength, flexible, and moisture-curing adhesives and sealants used in construction, automotive assembly, and marine applications.
• Elastomer Production: Used in the synthesis of castable and thermoplastic polyurethane elastomers (TPU) for industrial wheels, gaskets, hoses, and impact-resistant parts.
• Protective Coatings & Binders: Acts as a binder in industrial and protective coatings, providing excellent abrasion resistance, chemical durability, and adhesion to various substrates.
• Composite Materials: Employed as a matrix resin or toughening agent in fiber-reinforced composites for the aerospace, automotive, and sporting goods sectors.
• Footwear & Apparel: Utilized in the production of polyurethane soles, midsoles, and waterproof breathable membranes.
• Automotive Components: Found in the manufacture of interior trim, sound-dampening materials, and under-the-hood components requiring thermal and oil resistance.

Basic Information

Product Name	Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.-Hydro-.Omega.-Hydroxy-, Polymer With 2,4-Diisocyanato-1-Methylbenzene
CAS No.	37273-56-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane Prepolymer based on Polypropylene Glycol and TDI; PPG-TDI Prepolymer; Poly(propylene glycol) tolylene 2,4-diisocyanate terminated; TDI-terminated Polypropylene Glycol; Polyether Polyurethane Prepolymer; Isocyanate-terminated Polyether; Adhesive Prepolymer; CAS 37273-56-6
EINECS	Contact for details

Quality Control

Our Polyurethane Prepolymer undergoes rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. Key parameters such as isocyanate (NCO) content, viscosity, and moisture levels are strictly monitored. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures recommended for the specific grade (typically 15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; exposure to atmospheric moisture or prolonged light can lead to polymerization or degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Isocyanate (NCO) Content	Contact for details
Viscosity @ 25°C	Contact for details
Moisture (Karl Fischer)	< 0.05%
Specific Gravity @ 25°C	Contact for details

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