Description

2H-Azepin-2-one, hexahydro-, polymer with 1,3-diisocyanatomethylbenzene, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, .alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)] and 2,2'-oxybis[ethanol] is a specialized polyurethane prepolymer or resin intermediate, identified by CAS No. 80340-38-1. This compound is engineered to deliver precise reactivity and tailored physical properties for advanced polymer formulations. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to develop high-performance, durable materials with specific flexibility, adhesion, and chemical resistance characteristics.

Application

• High-Performance Coatings: Used as a key resin component in industrial, automotive, and protective coatings requiring excellent weatherability, gloss, and mechanical strength.
• Advanced Adhesives & Sealants: Serves as a polyurethane prepolymer for formulating structural adhesives, flexible sealants, and potting compounds with strong bonding and elastic properties.
• Specialty Elastomers: A fundamental building block for casting, molding, or extruding polyurethane elastomers used in rollers, gaskets, and wear-resistant parts.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composites to enhance toughness and interfacial adhesion.
• Flexible Foams: Can be utilized in the production of tailored, high-resilience flexible polyurethane foams for specialized applications.
• Industrial Binders: Employed in binder systems for abrasives, non-wovens, and foundry sands where controlled cure profiles and durability are critical.

Basic Information

Product Name	2H-Azepin-2-one, hexahydro-, polymer with 1,3-diisocyanatomethylbenzene, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, .alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)] and 2,2'-oxybis[ethanol]
CAS No.	80340-38-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Caprolactam-based polyurethane prepolymer; Polyurethane resin, caprolactam modified; Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 2,2'-oxybis[ethanol] and hexahydro-2H-azepin-2-one; Isocyanate-terminated polyether prepolymer; TDI-based polyurethane prepolymer; Polyurethane intermediate CAS 80340-38-1; Blocked or functional polyurethane oligomer
EINECS	Contact for details

Quality Control

Our production of this polyurethane intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as isocyanate (NCO) content, viscosity, hydroxyl value, and residual monomer levels are rigorously monitored. Certificates of Analysis (COA) detailing all relevant specifications are provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures recommended for polyurethane precursors, typically between 15°C and 25°C. This material is moisture-sensitive; containers must be kept sealed to prevent reaction with atmospheric humidity. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 3
Viscosity (at 25°C)	Contact for details
Isocyanate (NCO) Content	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Solid Content	Contact for details
Specific Gravity (at 25°C)	Contact for details

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