Description

Isocyanic Acid, Polymethylenepolyphenylene Ester, Polymer With [(1-Methyl-1,2-Ethanediyl)Bis(Oxy)]Bis[Propanol] is a specialized polymeric isocyanate, a key reactive intermediate in advanced polymer synthesis. This compound is valued for its ability to impart enhanced mechanical properties, chemical resistance, and crosslinking density to final polymeric materials. It is primarily sought by manufacturers in the polyurethane, coatings, adhesives, and specialty elastomers industries for developing high-performance formulations.

Application

• Polyurethane Elastomers: As a crosslinking agent for producing high-durability, abrasion-resistant elastomers used in industrial wheels, rollers, and seals.
• High-Performance Coatings: A critical component in formulating two-component polyurethane coatings for automotive, aerospace, and industrial maintenance applications requiring superior gloss, chemical resistance, and weatherability.
• Adhesives and Sealants: Used to enhance the bond strength, flexibility, and environmental stability of structural and specialty adhesives.
• Composite Materials: Acts as a matrix resin modifier in fiber-reinforced plastics (FRP) and other composites to improve interlaminar shear strength and thermal stability.
• Specialty Foams: Employed in the synthesis of rigid or microcellular foams where specific density and insulation properties are required.
• Waterborne Polyurethane Dispersions (PUDs): Serves as a key building block for creating environmentally friendly, high-performance aqueous polyurethane systems.

Basic Information

Item	Details
Product Name	Isocyanic Acid, Polymethylenepolyphenylene Ester, Polymer With [(1-Methyl-1,2-Ethanediyl)Bis(Oxy)]Bis[Propanol]
CAS No.	57288-55-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polymeric MDI adduct with polypropylene glycol; PPG-modified polymeric isocyanate; Polymeric diphenylmethane diisocyanate, propoxylated; Isocyanic acid, polymer with (methylenedi-p-phenylene) ester, polymer with oxybis(propanol), methyl-substituted; Polymeric aromatic isocyanate polyol adduct; MDI-based prepolymer; Polyurethane prepolymer based on polymeric MDI and PPG; Reactive polyisocyanate resin.
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. Every lot is characterized for critical parameters including NCO content, viscosity, and hydrolyzable chlorine. A comprehensive Certificate of Analysis (COA) detailing purity and specification results is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures recommended for isocyanate products (typically 15-25°C). This material is hygroscopic (moisture-sensitive). Containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture ingress and premature reaction. Keep away from heat, sparks, open flames, 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%
Identification (IR)	Conforms

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