Description

Oxirane, Methyl-, Polymer With 1-Isocyanato-2-(4-Isocyanatophenyl)Methylbenzene, 1,1-Methylenebis4-Isocyanatobenzene And Oxirane is a specialized polyol-modified polyisocyanate prepolymer, a key reactive intermediate in advanced polymer synthesis. This compound matters for its ability to impart enhanced flexibility, adhesion, and chemical resistance to final polymeric materials. Industrial manufacturers in coatings, adhesives, sealants, and elastomers (CASE) rely on this high-performance building block to develop products with superior durability and tailored properties.

Application

• High-Performance Coatings: Used as a crosslinking agent in polyurethane coatings for industrial maintenance, automotive refinish, and protective marine coatings, providing excellent gloss retention and corrosion resistance.
• Adhesives & Sealants: Serves as a key component in formulating structural adhesives, flexible sealants, and potting compounds, offering strong bonding and enhanced elasticity.
• Elastomer Production: Acts as a prepolymer in the manufacture of castable and thermoplastic polyurethane elastomers for gaskets, wheels, and industrial belts.
• Composite Materials: Utilized in resin formulations for fiber-reinforced plastics (FRP) and composite binders, improving impact strength and interfacial adhesion.
• Waterborne Polyurethane Dispersions (PUDs): A crucial intermediate for developing environmentally friendly, low-VOC water-based polyurethane systems for textiles and leather finishing.
• Specialty Binders: Employed in the formulation of binders for specialty tapes, nonwovens, and abrasive products, where toughness and flexibility are required.

Basic Information

Product Name	Oxirane, Methyl-, Polymer With 1-Isocyanato-2-(4-Isocyanatophenyl)Methylbenzene, 1,1-Methylenebis4-Isocyanatobenzene And Oxirane
CAS No.	89096-17-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(oxy(methyl-1,2-ethanediyl)), α-hydro-ω-hydroxy-, polymer with 1-isocyanato-2-[(4-isocyanatophenyl)methyl]benzene and 1,1'-methylenebis[4-isocyanatobenzene]; Polypropylene glycol-toluene diisocyanate-MDI copolymer; Polyol-modified aromatic polyisocyanate prepolymer; TDI/MDI/PPG prepolymer; Isocyanate-terminated polyether prepolymer; Polyurethane prepolymer based on PPG, TDI, and MDI; Reactive polyisocyanate intermediate
EINECS	Contact for details

Quality Control

Our production of this polyisocyanate prepolymer adheres to rigorous quality testing protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, and hydrolyzable chlorine are strictly monitored. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under a dry atmosphere (e.g., nitrogen blanket) to prevent moisture ingress and premature reaction. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
NCO Content (%)	Contact for details
Viscosity (at 25°C, mPa·s)	Contact for details
Density (at 25°C, g/cm³)	Contact for details
Flash Point (°C)	> 200
Moisture Content (%)	≤ 0.05

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