Description

1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane is a specialized polyurethane prepolymer derived from a polyether polyol and isophorone diisocyanate (IPDI). This compound is valued for its role as a key reactive intermediate in the synthesis of high-performance polyurethane resins and coatings. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to formulate products with excellent chemical resistance, flexibility, and durability.

Application

• High-Performance Coatings: Used as a building block for polyurethane coatings requiring superior weatherability, abrasion resistance, and gloss retention, ideal for automotive, industrial, and marine applications.
• Adhesives & Sealants: Serves as a prepolymer component in formulating structural adhesives and flexible sealants with strong bonding properties and environmental stability.
• Elastomers: A critical raw material for producing cast, thermoplastic, or millable polyurethane elastomers used in wheels, rollers, and impact-absorbing components.
• Composite Materials: Employed in resin systems for fiber-reinforced composites, providing enhanced toughness and interfacial adhesion.
• Waterborne Polyurethane Dispersions (PUDs): Can be modified and used in the synthesis of environmentally friendly, low-VOC aqueous polyurethane dispersions for textiles and leather finishing.
• Specialty Binders: Acts as a reactive binder in advanced materials, including those for the electronics and aerospace sectors.

Basic Information

Product Name	1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane
CAS No.	68084-46-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(oxy-1,4-butanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane; IPDI-based polyurethane prepolymer; Polyether polyol/IPDI prepolymer; Isophorone diisocyanate polyether prepolymer; Polyurethane prepolymer CAS 68084-46-8; Hydroxyl-terminated polyurethane prepolymer; Reactive polyurethane intermediate
EINECS	Contact for details

Quality Control

Our 1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent properties such as NCO content, viscosity, and hydroxyl value, which are critical for predictable downstream performance. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications 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 may react with strong bases and organic solvents; keep containers tightly sealed when not in use to prevent moisture absorption and premature reaction. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
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
Moisture Content	< 0.05%

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