Description

Hexandioic Acid,Polymer With 1,4-Butanediol,1,2-Ethanediol,1,2-Ethanediol,1,1,-Methylene-Bis(4-Isocyanatobenzene) And 2,2,-Oxybis(Ethanol) CAS NO 82669-79-2 is a specialized polyurethane prepolymer or resin intermediate derived from adipic acid, glycols, and MDI. This engineered polymer is valued for its ability to impart enhanced flexibility, toughness, and chemical resistance to final formulations. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producing high-performance polyurethane dispersions (PUDs) and thermoplastic polyurethanes (TPUs).

Application

• High-performance Polyurethane Coatings: Used as a key resin component in industrial, automotive, and protective coatings for superior durability and chemical resistance.
• Adhesives & Sealants: Serves as a base polymer for formulating flexible, strong-bonding adhesives and elastic sealants.
• Elastomer Production: A critical intermediate in the manufacture of cast, millable, or thermoplastic polyurethane elastomers.
• Polyurethane Dispersions (PUDs): Utilized in the synthesis of waterborne PUDs for eco-friendly coatings and finishes on textiles, leather, and plastics.
• Resin Modification: Acts as a flexibilizer or toughening agent in composite materials and other polymer systems.
• Specialty Binders: Employed in the formulation of binders for non-wovens, filters, and other technical textiles.

Basic Information

Product Name	Hexandioic Acid,Polymer With 1,4-Butanediol,1,2-Ethanediol,1,2-Ethanediol,1,1,-Methylene-Bis(4-Isocyanatobenzene) And 2,2,-Oxybis(Ethanol)
CAS No.	82669-79-2
Molecular Formula	Polymeric Mixture
Molecular Weight	Varies by grade and formulation
Synonyms	Adipic Acid-Glycol-MDI Copolymer; Polyurethane Prepolymer based on Adipic Acid, Ethylene Glycol, Butanediol, and MDI; MDI-Based Polyester Polyol; Polyester Polyurethane Resin; Adipic Acid/EG/BDO/MDI Copolymer; 1,1'-Methylenebis(4-isocyanatobenzene) polymer with adipic acid, 1,4-butanediol, 1,2-ethanediol and 2,2'-oxybis(ethanol); Polyurethane intermediate CAS 82669-79-2
EINECS	Contact for details

Quality Control

Our production of this polyurethane intermediate adheres to strict quality management systems. Each batch is characterized for critical parameters including NCO content, hydroxyl value, viscosity, and acid number to ensure consistency and performance. Comprehensive Certificates of Analysis (COA) documenting these specifications are provided with every shipment. We support compliance with relevant 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 the specific grade (typically between 15°C and 25°C). This material is moisture-sensitive (hygroscopic) and may react with strong acids or bases; keep away from incompatible substances. Use under inert atmosphere if specified for the grade to prevent moisture uptake and degradation.

Specification

Item	Specification
Appearance	Viscous liquid to solid (color varies)
NCO Content	As per grade (Typical range: 1-10%)
Hydroxyl Value (OH#)	As per grade
Acid Value	≤ 2.0 mg KOH/g
Viscosity @ 25°C	As per grade
Moisture Content	≤ 0.05%
Identification (IR)	Conforms to structure

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