Description

Hexanedioic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol And 5-Isocyanato-1-(Isocyanatomethyl)-1,3,3-Trimethylcyclohexane CAS NO 72259-73-5 is a specialized polyurethane prepolymer or resin derived from adipic acid, neopentyl glycol, and isophorone diisocyanate (IPDI). This engineered polymer is valued for its excellent weatherability, chemical resistance, and mechanical properties, making it a critical component in high-performance coatings and adhesives. It is primarily sought by formulators in the protective coatings, automotive, and industrial maintenance sectors who require durable, light-stable, and flexible polymer matrices.

Application

• High-Performance Coatings: Used as a key resin in two-component polyurethane coatings for automotive clear coats, industrial finishes, and aerospace applications, providing exceptional gloss retention and resistance to yellowing.
• Protective & Marine Coatings: Formulated into corrosion-resistant coatings for bridges, offshore platforms, and marine vessels due to its outstanding hydrolytic stability.
• Adhesives & Sealants: Serves as a base polymer in structural adhesives and elastic sealants requiring strong bonding, flexibility, and durability under harsh environmental conditions.
• Plastic & Composite Coatings: Applied as a topcoat for plastic substrates in automotive interiors and consumer electronics, offering excellent adhesion and abrasion resistance.
• Industrial Maintenance Paints: A component in heavy-duty maintenance paints for factories, chemical plants, and infrastructure, valued for its chemical and solvent resistance.
• Specialty Inks: Utilized in the formulation of high-performance, flexible printing inks for packaging and specialty substrates.

Basic Information

Product Name	Hexanedioic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol And 5-Isocyanato-1-(Isocyanatomethyl)-1,3,3-Trimethylcyclohexane
CAS No.	72259-73-5
Molecular Formula	(C6H10O4 • C5H12O2 • C14H22N2O2)n
Molecular Weight	Polymer - varies by grade
Synonyms	Adipic Acid-Neopentyl Glycol-IPDI Polymer; Polyurethane Prepolymer from Adipic Acid, NPG, and IPDI; IPDI-based Polyester Polyol; Adipic Acid/Neopentyl Glycol/IPDI Copolymer; Aliphatic Polyurethane Resin (IPDI type); Light-Stable Polyurethane Prepolymer; NPG-Adipate/IPDI Prepolymer; CAS 72259-73-5
EINECS	Contact for details

Quality Control

Our production of this polyurethane polymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, acid value, and color are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing the specific grade's specifications is provided with each shipment to support your quality assurance and formulation processes.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and premature reaction. Isolate from heat, open flames, and incompatible materials such as alcohols, amines, and moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
NCO Content	Contact for details
Viscosity (at 25°C)	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Color (Gardner)	≤ 2
Moisture (Karl Fischer)	≤ 0.05%
Solids Content	Contact for details

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