Description

Benzene, 1,3-Diisocyanato-2-Methyl-, Polymer With 2,4-Diisocyanato-1-Methylbenzene is a polymeric isocyanate, commonly known as a technical mixture of toluene diisocyanate (TDI) isomers. This product is a critical raw material for producing high-performance polyurethane foams, coatings, and elastomers. It is essential for manufacturers in the automotive, construction, furniture, and appliance industries seeking durable, flexible, and insulating materials.

Application

• Flexible Polyurethane Foam Production: Primary use in manufacturing slabstock and molded foams for furniture cushioning, mattresses, and automotive seating.
• Rigid Polyurethane Foam: Key component for insulation panels and boards used in construction, refrigeration, and industrial insulation.
• Polyurethane Coatings & Adhesives: Serves as a hardener in two-component systems for durable protective coatings, industrial floorings, and high-strength adhesives.
• Elastomers and Sealants: Used in the formulation of castable and thermoplastic polyurethane elastomers for wheels, gaskets, and weather-resistant sealants.
• Automotive Parts: Integral to producing interior components, sound-dampening materials, and lightweight structural parts.
• Binder for Composite Materials: Employed in binding wood fibers, mineral wool, and other substrates in panel manufacturing.

Basic Information

Product Name	Benzene, 1,3-Diisocyanato-2-Methyl-, Polymer With 2,4-Diisocyanato-1-Methylbenzene
CAS No.	31370-61-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Toluene Diisocyanate (TDI) Polymer; TDI Oligomer; TDI Trimer; TDI Adduct; Poly(toluene diisocyanate); Isocyanic acid, polymethylenepolyphenylene ester; TDI-based polyisocyanate; TDI prepolymer
EINECS	Contact for details

Quality Control

Our Benzene, 1,3-Diisocyanato-2-Methyl-, Polymer With 2,4-Diisocyanato-1-Methylbenzene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, reactivity, and performance. Certificates of Analysis (COA) detailing key parameters such as NCO content, viscosity, and isomer ratio are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures recommended for the specific grade (typically between 15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept under a dry, inert atmosphere (e.g., nitrogen blanket) to prevent premature reaction and degradation. Keep away from heat, sparks, open flames, and incompatible materials such as water, alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
NCO Content	Contact for details
Viscosity (25°C)	Contact for details
Isomer Ratio (2,4-/2,6-TDI)	Contact for details
Specific Gravity (25°C)	Contact for details
Hydrolyzable Chloride	Contact for details
Total Chlorine	Contact for details
Assay (HPLC)	Contact for details

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