Description

Diethylene Glycol, Adipic Acid, 1,1'-Methylenebis[4-Isocyanato Benzene] Copolymer is a specialized polyurethane prepolymer or resin intermediate formed from key monomers. This copolymer is engineered to deliver enhanced mechanical properties, chemical resistance, and tailored reactivity for advanced material formulations. It is primarily required by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to develop high-performance polyurethane systems.

Application

• High-Performance Polyurethane Coatings: Used as a key resin component in industrial, protective, and automotive coatings for superior durability and gloss.
• Specialty Adhesives & Sealants: Serves as a backbone polymer for formulating strong, flexible, and chemically resistant adhesives and sealants.
• Elastomer Manufacturing: Acts as a prepolymer for producing castable or thermoplastic polyurethane elastomers with excellent tensile strength and abrasion resistance.
• Composite Materials: Utilized in the production of fiber-reinforced composites and matrix resins for lightweight structural components.
• Binder Systems: Employed in the formulation of binders for foundry sands, abrasives, and non-woven materials.
• Flexible Foam Modification: Incorporated to modify the properties of flexible polyurethane foams, enhancing load-bearing and resilience.

Basic Information

Product Name	Diethylene Glycol, Adipic Acid, 1,1'-Methylenebis[4-Isocyanato Benzene] Copolymer
CAS No.	27234-35-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on MDI, adipic acid, and diethylene glycol; MDI-Adipic Acid-Diethylene Glycol Copolymer; 4,4'-Methylenediphenyl diisocyanate copolymer with adipic acid and diethylene glycol; Polyester polyol-MDI prepolymer; PU prepolymer resin; Adipic acid/diethylene glycol/MDI copolymer; Isocyanate-terminated polyester prepolymer
EINECS	Contact for details

Quality Control

Our Diethylene Glycol, Adipic Acid, 1,1'-Methylenebis[4-Isocyanato Benzene] Copolymer undergoes rigorous quality testing to ensure batch-to-batch consistency and performance. Quality parameters such as isocyanate (NCO) content, viscosity, acid value, and hydroxyl number are strictly monitored. Certificates of Analysis (COA) documenting all specifications are available upon request.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C / 59-77°F). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept sealed under a dry atmosphere (e.g., nitrogen blanket) after opening to prevent moisture absorption and premature reaction. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous liquid to solid
Color (Gardner)	≤ 3
Isocyanate (NCO) Content	Contact for details
Viscosity @ 25°C	Contact for details
Acid Value	≤ 1.0 mg KOH/g
Hydroxyl Value	Contact for details
Solid Content	Contact for details
Moisture Content	≤ 0.05%

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