Description

Oxirane, Methyl-, Polymer With Oxirane, Ether With 1,2,3-Propanetriol (3:1), Polymer With 1,1'-Methylenebis[Isocyanatobenzene] is a specialized polyether-polyurethane block copolymer, synthesized from propylene oxide, ethylene oxide, glycerol, and methylene diphenyl diisocyanate (MDI). This advanced polymer is engineered to deliver a unique balance of flexibility, adhesion, and chemical resistance, making it a critical performance additive and intermediate. It is primarily utilized in the formulation of high-performance coatings, adhesives, sealants, and elastomers (CASE) where tailored rheology and durability are required. Industrial buyers rely on this material for its consistent quality and ability to enhance product performance in demanding applications.

Application

• High-Performance Coatings: Used as a rheology modifier and binder in industrial, marine, and protective coatings to improve flexibility, adhesion, and chemical resistance.
• Adhesives & Sealants: Serves as a key polyol component in polyurethane-based adhesives and sealants, providing enhanced tack, cohesion, and environmental stability.
• Elastomer Production: Acts as a prepolymer or chain extender in the manufacture of cast, thermoplastic, and millable polyurethane elastomers.
• Composite Materials: Employed as a matrix resin or toughening agent in fiber-reinforced composites for automotive and aerospace components.
• Flexible Foams: Can be utilized in the formulation of specialized, high-resilience flexible polyurethane foams.
• Industrial Encapsulants & Potting Compounds: Provides excellent moisture resistance and mechanical properties for protecting electronic components.

Basic Information

Product Name	Oxirane, Methyl-, Polymer With Oxirane, Ether With 1,2,3-Propanetriol (3:1), Polymer With 1,1'-Methylenebis[Isocyanatobenzene]
CAS No.	112898-48-3
Molecular Formula	Contact for details
Molecular Weight	Variable (Polymer)
Synonyms	Poly(oxy(methyl-1,2-ethanediyl)), α-hydro-ω-hydroxy-, ether with 1,2,3-propanetriol (3:1), polymer with 1,1'-methylenebis[isocyanatobenzene]
Propylene Oxide-Ethylene Oxide-Glycerol Copolymer, MDI-terminated
Poly(propylene glycol-co-ethylene glycol) glycerol ether MDI polymer
Polyether Polyurethane Block Copolymer (PO/EO/Glycerol-MDI)
MDI-capped poly(oxypropylene-co-oxyethylene) glyceryl ether
Polyoxyalkylene triol-MDI prepolymer
Glycerol initiated PO/EO polyol-MDI adduct
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to rigorous quality management systems. Each batch is characterized for critical parameters including hydroxyl value, isocyanate content, viscosity, and molecular weight distribution to ensure consistent performance as a chemical intermediate. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We support compliance with relevant global standards for industrial chemicals, including REACH.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, 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) to prevent moisture absorption and premature reaction. Isolate from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 4
Hydroxyl Value (mg KOH/g)	Contact for details
Isocyanate Content (NCO, %)	Contact for details
Viscosity @ 25°C (cPs)	Contact for details
Water Content (Karl Fischer)	≤ 0.1%
Identification (IR)	Conforms

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