Description

2-Oxepanone, polymer with 5-amino-1,3,3-trimethylcyclohexanemethanamine, 4,4'-methylenebis[cyclohexanamine], 1,1'-methylenebis[4-isocyanatocyclohexane] and 2,2'-oxybis[ethanol], compd. with 2-butanone oxime is a specialized blocked polyurethane prepolymer or crosslinker, where the reactive isocyanate groups are temporarily protected by a blocking agent. This product matters for industrial formulators seeking enhanced pot life, controlled reactivity, and one-component system stability at ambient conditions. It is primarily needed by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, where it enables the production of high-performance, crosslinked polyurethane networks upon thermal activation.

Application

• High-Performance Industrial Coatings: Used as a crosslinker in powder coatings, coil coatings, and can coatings that require excellent chemical resistance, hardness, and durability.
• Automotive and Transportation Finishes: A key component in OEM and refinish clearcoats and primers, providing superior weatherability and scratch resistance.
• Adhesives and Sealants: Enables the formulation of single-component, heat-curable polyurethane adhesives with strong bonding strength for plastics, metals, and composites.
• Wire and Cable Enamels: Used in insulating varnishes and coatings that demand thermal stability and excellent electrical properties.
• Elastomer and Rubber Modification: Serves as a crosslinking agent to enhance the mechanical properties, abrasion resistance, and oil resistance of polyurethane elastomers.
• Textile and Leather Finishing: Applied in coatings and binders to impart water repellency, durability, and a soft hand feel to fabrics and synthetic leather.

Basic Information

Product Name	2-Oxepanone, polymer with 5-amino-1,3,3-trimethylcyclohexanemethanamine, 4,4'-methylenebis[cyclohexanamine], 1,1'-methylenebis[4-isocyanatocyclohexane] and 2,2'-oxybis[ethanol], compd. with 2-butanone oxime
CAS No.	139781-08-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked polyisocyanate crosslinker; Blocked aliphatic polyurethane prepolymer; MEKO-blocked HDI-based polyisocyanate; Blocked polyurethane based on HDI, IPDI, and caprolactone; Thermal latent curing agent; One-component PU crosslinker; 2-Butanone oxime blocked polyisocyanate; HDI/IPDI polyisocyanate, blocked with MEKO
EINECS	Contact for details

Quality Control

Our production of this advanced polyurethane crosslinker adheres to strict quality management systems, ensuring batch-to-batch consistency and performance reliability. Key parameters such as blocked isocyanate content, viscosity, solids content, and deblocking temperature are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Keep away from heat, sparks, and open flames. Protect from moisture to prevent premature reaction or gelation.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Solids Content	70 ± 2 %
Viscosity (25°C)	2000 - 5000 mPa·s
Blocked NCO Content	8.0 - 10.0 %
Deblocking Temperature	~130 - 150 °C
Solvent	2-Butanone oxime / Aromatic hydrocarbon blend

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