Description

Oxirane, Methyl-, Polymer With Oxirane, Ether With 1,2,3-Propanetriol (3:1), Polymer With 1,1-Methylenebis4-Isocyanatobenzene is a specialized polyurethane polyol prepolymer, synthesized from propylene oxide, glycerol, and methylene diphenyl diisocyanate (MDI). This compound is engineered to deliver consistent reactivity and performance as a key intermediate in the production of high-performance polyurethane systems. It is essential for formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product durability and mechanical properties.

Application

• High-Performance Polyurethane Coatings: Used as a building block in two-component polyurethane coatings for industrial maintenance, automotive refinish, and protective marine coatings, providing excellent chemical resistance and weatherability.
• Adhesives and Sealants: Serves as a core polyol component in formulating structural adhesives, flexible sealants, and bonding agents with strong adhesion to diverse substrates.
• Elastomers and Castable Urethanes: A critical intermediate for manufacturing polyurethane elastomers used in rollers, wheels, gaskets, and industrial parts requiring a balance of toughness and flexibility.
• Composite Materials: Employed in resin formulations for fiber-reinforced plastics (FRP) and composite materials, contributing to enhanced mechanical strength and impact resistance.
• Waterproofing and Construction Chemicals: Integral to the formulation of high-grade waterproofing membranes, concrete sealers, and joint fillers in the construction sector.
• Flexible and Rigid Foams: Can be utilized in specialized foam formulations where specific reactivity profiles and physical properties are required.

Basic Information

Product Name	Oxirane, Methyl-, Polymer With Oxirane, Ether With 1,2,3-Propanetriol (3:1), Polymer With 1,1-Methylenebis4-Isocyanatobenzene
CAS No.	59675-67-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(oxy(methyl-1,2-ethanediyl)), α-hydro-ω-hydroxy-, ether with 1,2,3-propanetriol (3:1), polymer with 1,1'-methylenebis[4-isocyanatobenzene]; MDI-terminated poly(propylene oxide) triol; Polyurethane prepolymer based on polypropylene oxide triol and MDI; PPG triol/MDI prepolymer; Oxirane, methyl-, polymer with oxirane, monoether with glycerol, polymer with diphenylmethane diisocyanate; Polyoxypropylene triol terminated with methylene diphenyl diisocyanate; Polypropylene glycol triol-MDI adduct.
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to rigorous quality testing protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, hydroxyl value, and residual monomer levels are strictly monitored. A comprehensive Certificate of Analysis (COA) documenting all test results is provided with every 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). This product is hygroscopic (moisture-sensitive) and must be protected from atmospheric moisture to prevent premature reaction and viscosity increase. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Specific Gravity @ 25°C	Contact for details
Water Content	≤ 0.05%
Identification (IR)	Conforms

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