Description

Hexanedioic Acid, Polymer With 1,2-Ethanediol And 1,1-Methylenebis4-Isocyanatobenzene is a high-performance polyurethane prepolymer based on adipic acid, ethylene glycol, and MDI. This specialized polymer is engineered to deliver consistent reactivity and robust physical properties, making it a critical raw material for advanced material formulations. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product durability and performance.

Application

• Polyurethane Coatings: Used as a key binder in high-performance industrial, automotive, and protective coatings for excellent chemical resistance and film toughness.
• Adhesives & Sealants: Serves as a primary component in formulating structural adhesives, laminating adhesives, and flexible sealants with strong bonding strength.
• Elastomers: A fundamental building block for manufacturing castable polyurethane elastomers used in wheels, rollers, and industrial parts.
• Resin Modification: Employed to modify and improve the properties of other polymer systems, enhancing flexibility, impact resistance, or adhesion.
• Binder Systems: Utilized in composite materials and foundry binders where controlled curing and strong mechanical properties are required.

Basic Information

Product Name	Hexanedioic Acid, Polymer With 1,2-Ethanediol And 1,1-Methylenebis4-Isocyanatobenzene
CAS No.	25931-01-5
Molecular Formula	(C6H10O4·C2H6O2·C15H10N2O2)n
Molecular Weight	Polymer - Variable
Synonyms	Adipic Acid-Ethylene Glycol-MDI Polymer; Polyurethane Prepolymer based on Adipic Acid, Ethylene Glycol, and MDI; MDI-Based Polyester Polyol; Adipic Acid/EG/MDI Copolymer; Poly(adipic acid-co-ethylene glycol-co-MDI); 4,4'-Methylenebis(phenyl isocyanate) polymer with adipic acid and ethylene glycol; Isocyanate-terminated polyester prepolymer; PU Prepolymer (Adipate/MDI type)
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to strict quality management protocols to ensure batch-to-batch consistency in key parameters such as NCO content, viscosity, and hydroxyl value. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing specifications relevant to your application. Our quality system is designed to support compliance with global regulatory frameworks, including REACH.

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 polyurethane raw materials (typically 15-25°C). This product is hygroscopic (moisture-sensitive). Prolonged exposure to atmospheric moisture will lead to premature reaction and gelation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous liquid to solid
Color (Gardner)	≤ 3
NCO Content (%)	To be specified per grade
Viscosity (cP @ 25°C)	To be specified per grade
Hydroxyl Value (mg KOH/g)	To be specified per grade
Acid Value (mg KOH/g)	≤ 1.0
Moisture Content (Karl Fischer)	≤ 0.05%
Identification (IR)	Conforms

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