Description

Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.-Hydro-.Omega.-Hydroxy-, Ether With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol (4:1), Polymer With 1,3-Diisocyanatomethylbenzene CAS NO 51617-66-4 is a specialized polyurethane prepolymer derived from a polyether polyol and a diisocyanate. This compound is valued for its role as a key reactive intermediate in the synthesis of high-performance polyurethane materials. It is essential for industrial manufacturers seeking to produce tailored elastomers, coatings, adhesives, and sealants with specific mechanical and chemical resistance properties.

Application

• Primary raw material for manufacturing polyurethane elastomers with enhanced toughness and abrasion resistance.
• Critical component in formulating high-performance industrial coatings and paints for metal, concrete, and plastic substrates.
• Used in the production of specialty adhesives and sealants for automotive, construction, and aerospace applications.
• Base polymer for creating flexible and rigid foams with tailored density and insulation properties.
• Intermediate in the synthesis of castable polyurethane parts, such as rollers, wheels, and gaskets.
• Key ingredient in waterproofing membranes and corrosion-protective linings.
• Used in the development of encapsulants and potting compounds for electronics.

Basic Information

Product Name	Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.-Hydro-.Omega.-Hydroxy-, Ether With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol (4:1), Polymer With 1,3-Diisocyanatomethylbenzene
CAS No.	51617-66-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on polyether polyol and TDI; Polyoxyethylene polyoxypropylene glycol, ether with pentaerythritol, polymer with toluene diisocyanate; TDI-based polyether urethane prepolymer; Polyether polyol-TDI adduct; Urethane prepolymer, polyether type; CAS 51617-66-4; Reactive polyurethane intermediate
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to strict quality management systems. Every batch is tested to ensure consistent properties such as NCO content, viscosity, and moisture levels. Certificates of Analysis (COA) documenting these parameters are available upon request 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Moisture (Karl Fischer)	< 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.