Description

Isocyanic Acid, Polymethylene Polyphenylene Ester, Polymer With 1,4-Butanediol is a specialized polymeric isocyanate, commonly recognized as a key intermediate in the production of high-performance polyurethane systems. This compound is valued for its ability to impart enhanced mechanical properties, chemical resistance, and thermal stability to the final polymer matrix. It is primarily sought after by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite materials.

Application

• Polyurethane Elastomers: As a core component for producing durable, abrasion-resistant elastomers used in industrial wheels, rollers, and gaskets.
• High-Performance Coatings & Paints: Serves as a curing agent in formulations requiring excellent weatherability, gloss retention, and chemical resistance for automotive, industrial, and marine applications.
• Adhesives & Sealants: Used to formulate strong, flexible polyurethane adhesives and sealants with superior bonding strength and environmental durability.
• Composite Materials: Acts as a matrix resin or crosslinker in fiber-reinforced plastics (FRP) and other composites for the aerospace and automotive sectors.
• Foam Systems: Employed in the synthesis of rigid or semi-rigid polyurethane foams for insulation and structural applications.
• Industrial Castings & Moldings: Utilized in the production of precision cast parts and moldings that demand high dimensional stability and toughness.

Basic Information

Product Name	Isocyanic Acid, Polymethylene Polyphenylene Ester, Polymer With 1,4-Butanediol
CAS No.	62097-35-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polymeric MDI (pMDI) modified with 1,4-Butanediol; 1,4-Butanediol-modified polymethylene polyphenylene polyisocyanate; BDO-modified pMDI; Polyisocyanate based on MDI and 1,4-butanediol; Isocyanic acid, polymer with formaldehyde and 4,4'-methylenediphenyl diisocyanate, reaction product with 1,4-butanediol; Urethane prepolymer based on MDI; Polyurethane prepolymer.
EINECS	Contact for details

Quality Control

Our production of Isocyanic Acid, Polymethylene Polyphenylene Ester, Polymer With 1,4-Butanediol adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, functionality (NCO content), viscosity, and other critical parameters. Certificates of Analysis (COA) detailing these specifications are available upon request 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 room temperature (15-25°C / 59-77°F). This product 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.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber liquid
NCO Content	Contact for details
Viscosity (25°C)	Contact for details
Specific Gravity (25°C)	Contact for details
Monomer Content (MDI)	< 1.0%
Hydrolyzable Chloride	< 0.1%
Identification (IR)	Conforms

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