Description

Hexanedioic Acid, Polymer With 1,4-Butanediol, 1,2-Ethanediol, 1,1'-Methylenebis[4-Isocyanatobenzene] And 1,2-Propanediol is a high-performance polyurethane prepolymer or resin derived from a specific formulation of adipic acid, glycols, and MDI. This engineered polymer is valued for its excellent balance of flexibility, chemical resistance, and durability, making it a critical raw material for demanding industrial applications. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for specialized polyurethane systems requiring tailored properties.

Application

• High-Performance Coatings & Paints: Used as a binder or resin component in industrial, marine, and protective coatings for superior adhesion, gloss, and chemical resistance.
• Adhesives & Sealants: Serves as a key polymer backbone in structural adhesives, potting compounds, and flexible sealants requiring strong bonding and environmental stability.
• Elastomers & Castable Urethanes: A fundamental component in the production of polyurethane elastomers for rollers, wheels, gaskets, and impact-absorbing parts.
• Fiber & Fabric Treatment: Employed in coatings and finishes for textiles and non-wovens to impart water resistance, durability, and specific hand-feel properties.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced composites for automotive and aerospace applications.
• Specialty Resins for Molding: Utilized in reaction injection molding (RIM) or cast molding processes to create complex, durable polyurethane parts.

Basic Information

Item	Details
Product Name	Hexanedioic Acid, Polymer With 1,4-Butanediol, 1,2-Ethanediol, 1,1'-Methylenebis[4-Isocyanatobenzene] And 1,2-Propanediol
CAS No.	39671-35-7
Molecular Formula	Polymeric Mixture
Molecular Weight	Varies by formulation and grade
Synonyms	Adipic Acid, Polymer with 1,4-Butanediol, Ethylene Glycol, MDI, and Propylene Glycol; Polyurethane Prepolymer based on Adipic Acid, MDI, and Glycols; MDI-based Polyester Polyol; Polyester Polyurethane Resin; Adipic Acid/EG/BD/MDI/Propylene Glycol Copolymer; 4,4'-Methylenebis(phenyl isocyanate) polymer with adipic acid, 1,4-butanediol, 1,2-ethanediol and 1,2-propanediol; PU Prepolymer (Adipate/MDI type)
EINECS	Contact for details

Quality Control

Our production of this polyurethane polymer adheres to strict batch-to-batch consistency protocols. Quality is monitored through key parameters including hydroxyl value, acid value, viscosity, and isocyanate (NCO) content where applicable. Certificates of Analysis (COA) detailing the specific specifications for each lot are provided to ensure it meets your formulation requirements. We operate under a quality management system aligned with industrial best practices.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep the container tightly sealed when not in use to prevent moisture absorption and contamination. Isolate from strong bases and incompatible organic solvents.

Specification

Item	Specification
Appearance	Viscous liquid to solid (color varies by grade)
Hydroxyl Value (mg KOH/g)	As per grade (Typical range: 20-150)
Acid Value (mg KOH/g)	≤ 2.0
Viscosity (at 25°C, mPa·s)	As per grade (Specified range)
Water Content (%)	≤ 0.10
Color (Gardner)	≤ 3 (or as specified)

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