Description

Propanol, Oxybis-, Polymer With 1,1-Methylenebis4-Isocyanatobenzene, Isocyanate-Terminated is a specialized, isocyanate-terminated prepolymer derived from a polyether polyol and a methylene diphenyl diisocyanate (MDI) core. This chemical is a critical building block in the formulation of high-performance polyurethane systems, offering precise control over final polymer properties. It is primarily utilized by manufacturers in the adhesives, sealants, coatings, and elastomers industries seeking to enhance product durability, flexibility, and chemical resistance.

Application

• Polyurethane Adhesives & Sealants: Serves as a key reactive component in high-strength structural adhesives, flexible sealants, and bonding agents for automotive, construction, and aerospace applications.
• Coatings & Paints: Used in the synthesis of polyurethane resins for protective coatings, offering excellent abrasion resistance, weatherability, and gloss for industrial and marine environments.
• Elastomers & Castables: A fundamental raw material for producing durable polyurethane elastomers used in wheels, rollers, gaskets, and impact-absorbing components.
• Binder Systems: Employed in composite materials and foundry sand binders, providing strong cohesion and thermal stability.
• Footwear & Apparel: Used in the formulation of polyurethane soles, midsoles, and synthetic leathers, delivering flexibility and long-lasting performance.
• Flexible & Rigid Foams: Can be tailored for use in specialized foam applications requiring specific density, hardness, or insulation properties.

Basic Information

Item	Detail
Product Name	Propanol, Oxybis-, Polymer With 1,1-Methylenebis4-Isocyanatobenzene, Isocyanate-Terminated
CAS No.	68610-32-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Isocyanate-terminated polyether prepolymer; MDI-based polyether prepolymer; Polyoxypropylene glycol, polymer with methylene diphenyl diisocyanate, isocyanate-terminated; Polypropylene glycol-MDI prepolymer; PPG-MDI prepolymer; Polyurethane prepolymer (MDI/PPG); 1,1'-Methylenebis(4-isocyanatobenzene), polymer with oxybis(propanol); Oligomeric MDI polyether prepolymer
EINECS	Contact for details

Quality Control

Our Propanol, Oxybis-, Polymer With 1,1-Methylenebis4-Isocyanatobenzene, Isocyanate-Terminated is manufactured under a rigorous quality management system. Each batch is tested to ensure consistent isocyanate (NCO) content, viscosity, and purity, meeting precise customer specifications for polyurethane synthesis. A comprehensive Certificate of Analysis (COA) detailing all critical parameters is provided with every shipment to guarantee traceability and performance reliability.

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) and must be kept under a dry, inert atmosphere (e.g., under dry nitrogen) to prevent premature reaction and gelation. Keep away from heat, sparks, open flames, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Isocyanate (NCO) Content	Contact for details
Viscosity @ 25°C	Contact for details
Specific Gravity @ 25°C	Contact for details
Moisture Content	≤ 0.05%
Monomeric MDI Content	≤ 0.5%

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