Description

1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,6-Diisocyanatohexane is a specialized polyurethane polyol prepolymer derived from trimethylolpropane (TMP) and hexamethylene diisocyanate (HDI). This compound is valued for its role as a key reactive intermediate, providing excellent crosslinking density, chemical resistance, and durability in final polymer networks. It is primarily sought by formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite materials.

Application

• High-Performance Coatings: Used as a building block in polyurethane coatings for industrial, automotive, and marine applications, offering enhanced weatherability and hardness.
• Adhesives & Sealants: Serves as a core component in formulating structural adhesives and flexible sealants with strong bonding and resistance to chemicals and moisture.
• Elastomers: A critical raw material for manufacturing polyurethane elastomers used in wheels, rollers, and impact-resistant parts.
• Composite Materials: Functions as a matrix resin or crosslinker in fiber-reinforced plastics (FRP) and other composite systems.
• Industrial Resins: Employed in the synthesis of specialty resins for potting, encapsulation, and casting applications.
• UV-Curable Systems: Can be modified for use in radiation-curable coatings and inks, contributing to rapid cure and high performance.

Basic Information

Product Name	1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,6-Diisocyanatohexane
CAS No.	30322-28-2
Molecular Formula	(C9H20O3 · C8H12N2O2)n
Molecular Weight	Varies by degree of polymerization (n)
Synonyms	HDI-TMP Adduct; Hexamethylene Diisocyanate Trimethylolpropane Adduct; Poly(hexamethylene diisocyanate-co-trimethylolpropane); TMP-HDI Prepolymer; Isocyanurate of HDI and TMP; Polyurethane Polyol Prepolymer (HDI/TMP); NCO-functional HDI trimer based on TMP; 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol polymer with 1,6-diisocyanatohexane
EINECS	Contact for details

Quality Control

Our production of 1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,6-Diisocyanatohexane adheres to stringent quality management protocols. Each batch is characterized for critical parameters including isocyanate (NCO) content, viscosity, and residual monomer levels to ensure consistency and performance. Certificates of Analysis (COA) detailing full specifications are provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). This product is hygroscopic (moisture-sensitive) and must be protected from atmospheric moisture to prevent premature reaction and viscosity increase. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Solid Content	Contact for details
Residual HDI Monomer	< 0.5% (by HPLC)
Specific Gravity @ 25°C	Contact for details
Color (Gardner)	≤ 2

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