Description

Benzene, 1,3-Diisocyanato-2-Methyl-, Polymer With 1,6-Diisocyanatohexane And 2,4-Diisocyanato-1-Methylbenzene is a specialized polyisocyanate prepolymer or adduct, a key intermediate in high-performance polyurethane chemistry. This compound is engineered to provide enhanced reactivity profiles, mechanical properties, and processing stability for demanding industrial applications. It is essential for formulators and manufacturers in sectors requiring durable, chemically resistant coatings, adhesives, sealants, and elastomers.

Application

• As a core component in the formulation of high-solids, two-component (2K) polyurethane coatings for industrial and automotive finishes.
• Used in the production of specialty polyurethane adhesives and sealants with excellent bonding strength and environmental resistance.
• Employed as a crosslinking agent in the manufacture of cast and thermoplastic polyurethane elastomers (TPU).
• Serves as a key raw material for rigid and flexible polyurethane foams with specific property requirements.
• Utilized in the synthesis of moisture-curing prepolymers for construction and waterproofing applications.
• Applied in the creation of advanced composite materials and fiber-reinforced plastics.

Basic Information

Product Name	Benzene, 1,3-Diisocyanato-2-Methyl-, Polymer With 1,6-Diisocyanatohexane And 2,4-Diisocyanato-1-Methylbenzene
CAS No.	86220-50-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Toluene Diisocyanate (TDI) / Hexamethylene Diisocyanate (HDI) Adduct; TDI/HDI Polyisocyanate Adduct; Isocyanic acid, polymethylenepolyphenylene ester, polymer with 1,6-diisocyanatohexane; Polyisocyanate based on TDI and HDI; TDI-HDI hybrid polyisocyanate; Aromatic-aliphatic polyisocyanate; Urethane prepolymer from TDI and HDI; Modified polyisocyanate resin
EINECS	Contact for details

Quality Control

Our production of this polyisocyanate adduct adheres to stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters including isocyanate (NCO) content, viscosity, and monomer content are rigorously monitored. Certificates of Analysis (COA) documenting full specifications are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures recommended for polyisocyanates (typically 15-25°C). This product is hygroscopic (moisture-sensitive). Containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture ingress and premature polymerization. Keep away from heat, sparks, open flames, and incompatible materials such as alcohols, amines, and water.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow liquid
NCO Content	Contact for details
Viscosity (25°C)	Contact for details
Monomer Content (TDI/HDI)	< 0.5% (typical)
Color (Gardner)	≤ 3
Specific Gravity (25°C)	Contact for details
Flash Point	> 100 °C

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