Description

2-Oxepanone, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, α-hydro-ω-hydroxypoly[ oxy(methyl-1,2-ethanediyl)] and 1,1'-methylenebis[4-isocyanatocyclohexane] is a specialized polyurethane prepolymer or resin derived from ε-caprolactone, trimethylolpropane, poly(ethylene glycol), and hydrogenated MDI. This engineered polymer is valued for its excellent flexibility, hydrolytic stability, and biocompatibility, making it a critical component in high-performance formulations. It is primarily sought after by manufacturers in the medical device, specialty adhesive, and advanced coating industries for creating durable, tailored material properties.

Application

• Medical Device Coatings: Used as a key component in biocompatible coatings for catheters, stents, and other implantable devices to enhance lubricity and tissue compatibility.
• High-Performance Adhesives & Sealants: Serves as a flexible polyurethane prepolymer in formulations requiring strong adhesion, moisture resistance, and durability.
• Specialty Elastomers and Thermoplastic Polyurethanes (TPU): Imparts softness, resilience, and low-temperature flexibility in cast elastomers and TPU for industrial and consumer goods.
• Advanced Surface Coatings: Utilized in protective and functional coatings for textiles, automotive interiors, and electronic components where flexibility and chemical resistance are paramount.
• Controlled-Release Matrices: Acts as a biodegradable and biocompatible polymer carrier in pharmaceutical and agrochemical controlled-release applications.
• 3D Printing Resins: Incorporated into specialized photopolymer or elastomeric resin formulations for additive manufacturing.

Basic Information

Product Name	2-Oxepanone, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, α-hydro-ω-hydroxypoly[ oxy(methyl-1,2-ethanediyl)] and 1,1'-methylenebis[4-isocyanatocyclohexane]
CAS No.	67599-04-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(ε-caprolactone-co-trimethylolpropane-co-ethylene glycol), hydrogenated MDI terminated; Hydrogenated MDI-capped PCL-TMP-PEG copolymer; Aliphatic polyurethane prepolymer based on PCL, TMP, and PEG; Polycaprolactone polyol polyurethane resin; PEG-PCL-TMP polyurethane; 4,4'-Methylenebis(cyclohexyl isocyanate) polymer with poly(ethylene glycol), polycaprolactone, and trimethylolpropane; H12MDI/PCL/PEG/TMP 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, hydroxyl value, viscosity, and residual monomer levels to ensure consistency and performance. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment. We support compliance with relevant regulatory frameworks for medical and industrial applications.

Storage

Preserve in a tightly closed 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. This material is moisture-sensitive (hygroscopic) and may react with strong acids or bases; keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) when not in use to prevent moisture absorption and premature reaction.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
NCO Content	Contact for details
Hydroxyl Value (OH#)	Contact for details
Viscosity @ 25°C	Contact for details
Residual Monomer (H12MDI)	< 0.1%
Water Content (KF)	< 0.05%
Specific Gravity @ 25°C	Contact for details

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