Description

Methylidynetri-p-Phenylene Triisocyanate is a high-purity, trifunctional aromatic isocyanate monomer. This compound is a critical building block in the synthesis of advanced polymers, offering superior cross-linking density and thermal stability. It is essential for manufacturers in the polyurethane, coatings, and specialty adhesives industries seeking to enhance the performance characteristics of their final products.

Application

• High-Performance Polyurethane Elastomers: Serves as a core cross-linking agent for producing elastomers with exceptional mechanical strength, abrasion resistance, and chemical stability.
• Specialty Coatings and Paints: Used in formulating advanced industrial and protective coatings that require high durability, gloss retention, and resistance to harsh environments.
• Adhesives and Sealants: A key component in the production of high-strength, moisture-curing adhesives and sealants for automotive, construction, and aerospace applications.
• Polyurethane Foams: Imparts rigidity and thermal stability to specialized rigid and semi-rigid foam systems.
• Polymer Modification: Employed as a modifier to introduce isocyanate functionality into polymer chains, enhancing properties like adhesion and chemical resistance.
• Chemical Synthesis Intermediate: Acts as a versatile intermediate in organic synthesis for creating more complex chemical entities, including other specialty isocyanates.

Basic Information

Product Name	Methylidynetri-p-Phenylene Triisocyanate
CAS No.	2422-91-5
Molecular Formula	C22H13N3O3
Molecular Weight	367.36 g/mol
Synonyms	1,1',1''-Methylidynetris(4-isocyanatobenzene); Tris(4-isocyanatophenyl)methane; Desmodur R; Triphenylmethane-4,4',4''-triisocyanate; TPTI; 4,4',4''-Triphenylmethane triisocyanate; Tris(p-isocyanatophenyl)methane; Isocyanic acid, tris(4-isocyanatophenyl)methyl ester
EINECS	219-345-8

Quality Control

Our production of Methylidynetri-p-Phenylene Triisocyanate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, purity profiling, and impurity quantification, to ensure it meets precise customer and industry specifications. Certificates of Analysis (COA) documenting these results are provided and can be tailored to support compliance with relevant regulatory frameworks such as REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (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 degradation from moisture ingress.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Hydrolyzable Chlorine	≤ 0.1 %
Melting Point	89 - 92 °C
Loss on Drying	≤ 0.5 %

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