Description

Isocyanic acid, polymethylenepolyphenylene ester, polymer with .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1) and methyloxirane polymer with oxirane ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol is a specialized polymeric isocyanate, commonly recognized as a key component in advanced polyurethane systems. This compound is engineered to deliver enhanced reactivity control and tailored performance in demanding formulations. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to develop high-performance, durable products.

Application

• High-Performance Polyurethane Coatings: Used as a crosslinker in industrial, automotive, and protective coatings for superior chemical resistance, hardness, and weatherability.
• Advanced Adhesives and Sealants: Serves as a critical raw material in formulating structural adhesives and flexible sealants with excellent bond strength and durability.
• Elastomer Production: A key component in the manufacture of cast, thermoplastic, and millable polyurethane elastomers for gaskets, wheels, and industrial parts.
• Composite Materials: Employed in resin systems for fiber-reinforced composites, providing robust mechanical properties.
• Binder Systems: Used in specialty binder applications for foundry sands, abrasives, and non-woven materials.
• Flexible and Rigid Foams: Can be formulated into specialized foam systems requiring specific density, resilience, or insulation properties.

Basic Information

Item	Details
Product Name	Isocyanic acid, polymethylenepolyphenylene ester, polymer with .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1) and methyloxirane polymer with oxirane ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol
CAS No.	71412-33-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polymeric MDI adduct with polyether polyol; Modified polymeric isocyanate; Polyurethane prepolymer based on PMDI; Polymeric isocyanate resin; MDI-based polyisocyanate prepolymer; Isocyanate-terminated polyether; Reactive polyurethane intermediate; Aliphatic-modified aromatic polyisocyanate
EINECS	Contact for details

Quality Control

Our production of this polymeric isocyanate adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested against critical parameters including NCO content, viscosity, and hydrolyzable chlorine. A comprehensive Certificate of Analysis (COA) documenting all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures recommended for polyisocyanate materials (typically 15-25°C/59-77°F). This product is hygroscopic (moisture-sensitive). Protect from moisture, heat, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Density @ 25°C	Contact for details
Hydrolyzable Chlorine	≤ 0.1%
Solids Content	Contact for details

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