Description

2H-Azepin-2-one, hexahydro-, polymer with 1,6-hexanediol and 1,1'-methylenebis[4-isocyanatocyclohexane] (2-Oxohexamethyleneimine, 1,6-hexanediol, methylene bis(4-cyclohexylisocyanate) polymer) is a high-performance polyurethane prepolymer based on caprolactam, hexanediol, and hydrogenated MDI. This specialized polymer is engineered to deliver exceptional durability, chemical resistance, and mechanical properties in demanding industrial applications. It is a critical raw material for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product performance.

Application

• High-Performance Coatings: Used as a key component in formulating advanced polyurethane coatings for industrial, automotive, and marine applications requiring superior abrasion and chemical resistance.
• Specialty Adhesives & Sealants: Serves as a base polymer for structural adhesives and flexible sealants, offering excellent bonding strength and environmental stability.
• Elastomer Production: Essential for manufacturing cast polyurethane elastomers used in rollers, wheels, gaskets, and impact-absorbing components.
• Composite Materials: Acts as a matrix resin or binder in fiber-reinforced composites for the aerospace and automotive sectors.
• Waterproofing Membranes: Formulated into liquid-applied membranes and coatings for construction and infrastructure due to its excellent hydrolytic stability.
• Wire & Cable Insulation: Utilized in potting compounds and insulating materials that require a combination of flexibility and toughness.

Basic Information

Product Name	2H-Azepin-2-one, hexahydro-, polymer with 1,6-hexanediol and 1,1'-methylenebis[4-isocyanatocyclohexane]
CAS No.	52496-55-6
Molecular Formula	(C6H11NO·C6H14O2·C15H22N2O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Caprolactam-Hexanediol-H12MDI Polymer; Poly(ester-urethane) from caprolactam, 1,6-hexanediol, and 4,4'-Methylenebis(cyclohexyl isocyanate); Hydrogenated MDI-based Polyurethane Prepolymer; Poly[oxy[1,6-hexanediyloxycarbonylimino(1-oxo-1,6-hexanediyl)imino(cyclohexylmethylene)cyclohexylene-1,4-diylcarbonylimino]]; H12MDI/HD/Caprolactam Prepolymer; Aliphatic Polyurethane Resin; 2-Oxohexamethyleneimine polymer with 1,6-hexanediol and methylene bis(4-cyclohexylisocyanate)
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, and hydrolyzable chloride are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance specifications is provided with every shipment to support your quality assurance protocols.

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 prepolymers, typically between 15°C and 25°C. Keep away from heat, open flames, and sources of moisture. Under these conditions, the product is stable for the period indicated on the label.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
NCO Content	Contact for details
Viscosity (at 25°C)	Contact for details
Solid Content	Contact for details
Hydrolyzable Chloride	≤ 0.01%
Identification (IR)	Conforms to structure

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