Description

Polyoxy(methyl-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1), polymer with 1,1-methylenebis4-isocyanatocyclohexane is a specialized polyurethane prepolymer derived from a polyether polyol and an aliphatic diisocyanate. This compound is valued for its ability to impart excellent weatherability, light stability, and mechanical flexibility to final polyurethane systems. It is primarily utilized by formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking high-performance, non-yellowing properties.

Application

• High-Performance Coatings: As a key component in aliphatic polyurethane coatings for automotive clear coats, industrial maintenance paints, and architectural finishes requiring superior gloss retention and UV resistance.
• Elastomers and Sealants: Used in the formulation of non-yellowing cast elastomers, gaskets, and sealants for outdoor and demanding mechanical applications.
• Adhesives and Binders: Serves as a prepolymer in structural and laminating adhesives where color stability and durability are critical.
• Composite Materials: Employed as a matrix resin or binder in fiber-reinforced composites for marine, transportation, and sporting goods.
• Specialty Foams: Can be used in the production of microcellular foams and other specialized foam products requiring light stability.
• Industrial Rollers and Wheels: A component in formulations for manufacturing durable, non-discoloring rollers and wheels.

Basic Information

Product Name	Polyoxy(methyl-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1), polymer with 1,1-methylenebis4-isocyanatocyclohexane
CAS No.	53170-03-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Aliphatic polyurethane prepolymer; Polyether-based aliphatic isocyanate prepolymer; HDI-based polyether prepolymer; Polyoxyethylene glycol, TMP ether, polymer with HMDI; Trimethylolpropane ethoxylate triol-HMDI prepolymer; Hexamethylene diisocyanate (HDI) polyether prepolymer; 1,1'-Methylenebis(4-isocyanatocyclohexane) polymer with polyoxyethylene glycol TMP ether; Light-stable polyurethane prepolymer.
EINECS	Contact for details

Quality Control

Our polyurethane prepolymer is manufactured under strict quality protocols to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including NCO content, viscosity, and color to meet precise formulation requirements. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with every shipment.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures recommended for polyurethane prepolymers, typically 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 gelation.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
NCO Content (%)	Contact for details
Viscosity (cPs @ 25°C)	Contact for details
Color (Gardner)	≤ 2
Specific Gravity (25°C)	Contact for details
Moisture Content (%)	≤ 0.05
Solids Content (%)	100

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