Description

Oxirane, Methyl-, Polymer With Oxirane, Ether With 1,2,3-Propanetriol (3:1), Polymer With 1,1-Methylenebis4-Isocyanatocyclohexane is a specialized polyurethane polyol prepolymer, synthesized from propylene oxide, glycerin, and a hydrogenated MDI (methylene diphenyl diisocyanate) derivative. This advanced polymer is engineered to deliver exceptional reactivity, controlled molecular architecture, and versatile cross-linking capabilities, making it a critical raw material for high-performance formulations. It is primarily needed by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product durability, flexibility, and chemical resistance.

Application

• High-Performance Polyurethane Coatings: Used as a key polyol component in two-component (2K) polyurethane coatings for industrial, automotive, and marine applications, providing excellent gloss retention, abrasion resistance, and weatherability.
• Elastomers and Castable Urethanes: Serves as a prepolymer for manufacturing flexible and rigid polyurethane elastomers, gaskets, wheels, and industrial rollers.
• Adhesives and Sealants: Formulated into structural adhesives, potting compounds, and high-strength sealants that require strong bonding and resistance to environmental stress.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composite systems to improve impact strength and interfacial adhesion.
• Specialty Binders: Utilized in formulating binders for advanced abrasives, friction materials, and non-woven textiles.
• Flexible Foams (Modified): Can be used as a cross-linker or chain extender to modify the properties of flexible polyurethane foams, enhancing load-bearing and compression set characteristics.

Basic Information

Item	Details
Product Name	Oxirane, Methyl-, Polymer With Oxirane, Ether With 1,2,3-Propanetriol (3:1), Polymer With 1,1-Methylenebis[4-isocyanatocyclohexane]
CAS No.	67837-35-8
Molecular Formula	Complex Polymer - Contact for details
Molecular Weight	Variable (Polymer) - 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-isocyanatocyclohexane]; Hydrogenated MDI-based Polyurethane Polyol Prepolymer; Polypropylene Glycol-Glycerin Copolymer terminated with H12MDI; H12MDI-PPG-Glycerin Prepolymer; Aliphatic Polyurethane Polyol; Cycloaliphatic Polyisocyanate Polyol Adduct; Polyether Polyol modified with Hydrogenated Methylene Diphenyl Diisocyanate.
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistency in critical parameters such as NCO content, hydroxyl value, viscosity, and color. We provide comprehensive Certificates of Analysis (COA) upon request, detailing the specifications and test results. Our commitment to quality supports compliance with relevant ISO standards and customer-specific requirements for industrial and specialty chemical applications.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen blanket) to prevent moisture absorption and premature reaction. Isolate from strong acids, bases, and other incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
NCO Content (%)	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity @ 25°C (cP)	Contact for details
Color (Gardner)	≤ 3
Water Content (%)	≤ 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.