Description

2H-Azepin-2-One, Hexahydro-, Polymer With 1,3-Diisocyanatomethylbenzene is a high-performance polyamide-based polymer derived from caprolactam and isocyanate chemistry. This specialized polymer is engineered to deliver exceptional mechanical strength, thermal stability, and chemical resistance, making it a critical component in advanced material formulations. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producers of high-performance engineering plastics and composite materials seeking to enhance product durability and performance under demanding conditions.

Application

• High-Performance Coatings: Used as a key resin in industrial, automotive, and protective coatings for superior adhesion, hardness, and chemical resistance.
• Advanced Adhesives & Sealants: Serves as a toughening agent and binder in structural adhesives and high-strength sealants for aerospace, automotive, and construction applications.
• Engineering Plastics & Composites: Incorporated into polyamide blends and composites to improve impact resistance, thermal stability, and dimensional stability.
• Elastomer Modification: Utilized to modify polyurethane and other elastomers, enhancing their tensile strength, abrasion resistance, and flexibility.
• Textile & Fiber Treatment: Applied in coatings for technical textiles and fibers to impart water repellency, durability, and flame retardancy.
• Encapsulation & Potting Compounds: Used in electronic and electrical applications for components requiring robust environmental protection and insulation.

Basic Information

Product Name	2H-Azepin-2-One, Hexahydro-, Polymer With 1,3-Diisocyanatomethylbenzene
CAS No.	67874-95-7
Molecular Formula	(C6H11NO · C10H8N2O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(hexahydro-2H-azepin-2-one-co-1,3-diisocyanatomethylbenzene); Caprolactam-m-Xylylene Diisocyanate Copolymer; Nylon 6-m-XDI Copolymer; Polyamide-m-XDI Polymer; m-Xylylene Diisocyanate-Caprolactam Copolymer; PA-mXDI; Poly(caprolactam-co-m-xylylene diisocyanate); Polymer of ε-Caprolactam and 1,3-Bis(isocyanatomethyl)benzene
EINECS	Contact for details

Quality Control

Our production of 2H-Azepin-2-One, Hexahydro-, Polymer With 1,3-Diisocyanatomethylbenzene adheres to a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including molecular weight distribution, viscosity, isocyanate content, and thermal properties. Certificates of Analysis (COA) documenting full specifications are available upon request, supporting compliance with relevant industry and customer-specific requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is moisture-sensitive (hygroscopic); ensure containers are sealed tightly after use to prevent degradation from atmospheric moisture. Incompatible with strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white granules or powder
Identification (IR)	Conforms to structure
Assay (Polymer Content)	≥ 98.0 %
Residual Monomer (Caprolactam)	≤ 0.5 %
Residual Isocyanate (NCO)	≤ 0.1 %
Inherent Viscosity	0.5 - 1.2 dL/g (Specific conditions)
Melting Point (DSC)	180 - 220 °C
Moisture Content (KF)	≤ 0.5 %
Ash Content	≤ 0.1 %

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