Description

2H-Azepin-2-One, Hexahydro-, Polymer With 1,3-Diisocyanatomethylbenzene And α-Hydro-ω-Hydroxypoly( Oxy-1,4-Butanediyl) is a specialized polyurethane prepolymer or block copolymer, known for its unique combination of properties derived from its caprolactam and poly(tetramethylene ether) glycol (PTMEG) segments. This engineered material is valued for its excellent elastomeric characteristics, hydrolytic stability, and chemical resistance, making it a critical component in high-performance formulations. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries for developing durable, flexible, and resilient end-products.

Application

• High-Performance Elastomers and Thermoplastic Polyurethanes (TPU): Used as a key building block for manufacturing flexible, abrasion-resistant, and mechanically robust elastomeric components.
• Specialty Coatings and Paints: Imparts flexibility, adhesion, and durability to industrial, protective, and marine coatings, enhancing their resistance to weathering and chemicals.
• Advanced Adhesives and Sealants: Serves as a base polymer for formulating strong, flexible adhesives and sealants with good bonding properties on various substrates.
• Fiber and Textile Finishing: Employed in coatings for synthetic fibers to improve elasticity, hand feel, and durability.
• Automotive and Industrial Parts: Used in the production of gaskets, hoses, belts, and other parts requiring a balance of flexibility and strength.
• Medical Device Components: Potential use in biocompatible applications where specific elastomeric properties are required, subject to necessary regulatory compliance.

Basic Information

Product Name	2H-Azepin-2-One, Hexahydro-, Polymer With 1,3-Diisocyanatomethylbenzene And α-Hydro-ω-Hydroxypoly( Oxy-1,4-Butanediyl)
CAS No.	125328-69-0
Molecular Formula	Contact for details
Molecular Weight	Varies (Polymer)
Synonyms	Poly(oxy-1,4-butanediyl), α-hydro-ω-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene and hexahydro-2H-azepin-2-one; Poly(tetramethylene ether) glycol-toluene diisocyanate-ε-caprolactam block copolymer; PTMEG-TDI-Caprolactam copolymer; Polyurethane prepolymer based on PTMEG, TDI, and caprolactam; Block copolymer of poly(tetramethylene oxide), toluene diisocyanate, and caprolactam; Poly(oxytetramethylene) glycol toluene diisocyanate caprolactam copolymer; PolyTHF-TDI-Caprolactam polymer.
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to strict quality management systems. Each batch is characterized for critical parameters including NCO content, viscosity, molecular weight distribution, and residual monomer levels to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) detailing these specifications are provided and available upon request, supporting your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). This material is moisture-sensitive. Keep container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Identification (IR)	Conforms to structure
NCO Content	As per grade (Contact for details)
Viscosity @ 25°C	As per grade (Contact for details)
Molecular Weight (GPC)	As per grade (Contact for details)
Residual Monomer (TDI)	< 0.1%
Residual Monomer (Caprolactam)	< 0.5%
Moisture Content (KF)	< 0.05%

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