Description

1,1'-Methylenebis (Isocyanatobenzene), Polymer With Xylenol is a specialized polymeric isocyanate derivative, known for its role as a key reactive intermediate in advanced polymer synthesis. This compound matters for its ability to impart enhanced thermal stability, chemical resistance, and mechanical properties to final polymeric materials. It is primarily needed by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producing high-performance resins and composites.

Application

• Crosslinking Agent in high-performance polyurethane coatings and varnishes.
• Hardener/Modifier for epoxy resin systems to improve toughness and heat resistance.
• Polymer Intermediate in the synthesis of specialized polyisocyanurates and polyurethane prepolymers.
• Adhesive Formulation component for industrial and structural bonding applications.
• Sealant and Elastomer Production, contributing to durability and weatherability.
• Composite Material Manufacturing, used in resin matrices for automotive and aerospace components.
• Chemical Synthesis as a building block for other specialty chemicals and polymers.

Basic Information

Product Name	1,1'-Methylenebis (Isocyanatobenzene), Polymer With Xylenol
CAS No.	50861-63-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polymeric MDI (pMDI) modified with xylenol; Xylenol-modified methylene diphenyl diisocyanate polymer; Methylene diphenyl diisocyanate, polymer with xylenol; Isocyanic acid, polymethylenepolyphenylene ester, polymer with xylenol; Polymeric isocyanate based on MDI and xylenol; CAS 50861-63-7; Benzene, 1,1'-methylenebis[isocyanato-, polymer with xylenol
EINECS	Contact for details

Quality Control

Our 1,1'-Methylenebis (Isocyanatobenzene), Polymer With Xylenol undergoes rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. Quality parameters are strictly monitored, including isocyanate content, viscosity, and hydrolyzable chlorine. A Certificate of Analysis (COA) is provided with each shipment to guarantee specification adherence.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a recommended temperature of 15-25°C (59-77°F). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture ingress and premature reaction.

Specification

Item	Specification
Appearance	Light yellow to brown viscous liquid
Identification (IR)	Conforms
NCO Content	Contact for details
Viscosity (25°C)	Contact for details
Hydrolyzable Chlorine	≤ 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.