Description

3,3'-(Ureylenedimethylene)Bis(3,5,5-Trimethylcyclohexyl) Diisocyanate is a specialized aliphatic diisocyanate monomer, a key building block for high-performance polymers. This compound is valued for its ability to impart exceptional light stability, chemical resistance, and mechanical durability to polyurethane and polyurea systems. It is primarily sought by formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries for demanding applications where color retention and weatherability are critical.

Application

• High-Performance Coatings: Used in automotive clear coats, industrial maintenance paints, and aerospace coatings for superior UV resistance and gloss retention.
• Light-Stable Elastomers: A key component in the production of aliphatic polyurethane and polyurea elastomers for outdoor applications.
• Specialty Adhesives & Sealants: Formulated into premium-grade adhesives and sealants that require long-term durability under harsh environmental conditions.
• Advanced Composite Materials: Serves as a cross-linking agent in fiber-reinforced plastics and composite matrices.
• Optical and Electronic Encapsulants: Used in potting and encapsulation compounds where clarity and resistance to yellowing are essential.

Basic Information

Product Name	3,3'-(Ureylenedimethylene)Bis(3,5,5-Trimethylcyclohexyl) Diisocyanate
CAS No.	55525-54-7
Molecular Formula	C26H44N4O4
Molecular Weight	476.66 g/mol
Synonyms	Ureylene Dimethylene Bis(3,5,5-Trimethylcyclohexyl Isocyanate); 1,1'-(Ureylenedimethylene)bis[3-(isocyanatomethyl)-3,5,5-trimethylcyclohexane]; Aliphatic Diisocyanate based on Isophorone Diisocyanate (IPDI) trimer; IPDI-based Ureylene Diisocyanate; Ureylene Diisocyanate Trimer; Light-stable Aliphatic Diisocyanate; 3,5,5-Trimethyl-3-isocyanatomethylcyclohexyl Ureylene Diisocyanate
EINECS	Contact for details

Quality Control

Our production of 3,3'-(Ureylenedimethylene)Bis(3,5,5-Trimethylcyclohexyl) Diisocyanate adheres to stringent quality management protocols. Every batch is analyzed to ensure consistent purity, functionality, and performance. Comprehensive Certificates of Analysis (COA) detailing key parameters such as isocyanate content, viscosity, color, and hydrolyzable chloride are provided to guarantee supply reliability and product consistency for your formulations.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored under a dry, inert atmosphere (e.g., nitrogen or dry air) in a cool, well-ventilated area. Recommended storage temperature is 15-25°C. Keep away from heat, open flames, and sources of ignition. Containers must be kept tightly sealed when not in use to prevent contamination and polymerization from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (NCO Content)	Contact for details
Viscosity (25°C)	Contact for details
Color (Gardner)	≤ 2
Hydrolyzable Chloride	≤ 0.1%
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.