Description

Oxirane, Methyl-, Polymer With 1,3-Diisocyanatomethylbenzene And Oxirane, Isocyanate-Terminated is a specialized polyurethane prepolymer, characterized by its reactive isocyanate (-NCO) end groups. This compound is engineered to deliver superior adhesion, chemical resistance, and mechanical strength in formulated systems. It is a critical raw material for manufacturers in the adhesives, sealants, coatings, and elastomers industries seeking high-performance, cross-linkable polymer backbones.

Application

• High-Performance Adhesives & Sealants: Used as a base polymer for formulating one- and two-component polyurethane adhesives and sealants with excellent bond strength and durability.
• Protective & Industrial Coatings: Serves as a key component in coatings requiring abrasion resistance, flexibility, and chemical protection.
• Elastomer Production: Acts as a prepolymer for casting or molding polyurethane elastomers used in wheels, rollers, and industrial parts.
• Binder Systems: Employed in composite materials and foundry binders where strong, resilient polymer matrices are required.
• Potting & Encapsulation Compounds: Provides a robust, protective matrix for electronic components and other sensitive assemblies.
• Fiber & Textile Treatments: Used to impart water repellency, stiffness, or other functional properties to technical textiles.

Basic Information

Product Name	Oxirane, Methyl-, Polymer With 1,3-Diisocyanatomethylbenzene And Oxirane, Isocyanate-Terminated
CAS No.	68442-13-7
Molecular Formula	(C3H6O · C10H10N2O2)n
Molecular Weight	Varies (Polymer)
Synonyms	Poly(oxy(methyl-1,2-ethanediyl)), α-hydro-ω-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene; Polypropylene glycol-toluene diisocyanate prepolymer; PPG-TDI prepolymer; Isocyanate-terminated polypropylene glycol; Polyurethane prepolymer based on PPG and TDI; TDI-based polyurethane prepolymer; Reactive polyurethane resin; NCO-terminated polyether.
EINECS	Contact for details

Quality Control

Our production of this isocyanate-terminated prepolymer adheres to strict quality protocols to ensure batch-to-batch consistency in key parameters such as NCO content, viscosity, and residual monomer levels. Certificates of Analysis (COA) are provided with each shipment, detailing specifications and test results. We operate under a robust Quality Management System to meet the demanding requirements of industrial and specialty chemical applications.

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, containers must be kept tightly sealed under a dry atmosphere (e.g., under dry nitrogen) to prevent reaction with atmospheric moisture, which can lead to gelation or loss of reactivity.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
NCO Content	Contact for details
Viscosity (25°C)	Contact for details
Specific Gravity (25°C)	Contact for details
Residual TDI Monomer	< 0.5%
Moisture (Karl Fischer)	< 0.05%

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