Description

Polycaprolactone Triol is a specialized, low-molecular-weight polyester triol derived from caprolactone monomers. This versatile chemical intermediate is prized for its excellent flexibility, hydrolytic stability, and compatibility with various polymer systems, making it a critical component in high-performance formulations. It is essential for manufacturers in the polyurethane, coatings, adhesives, and specialty elastomers industries seeking to enhance product durability and processing characteristics.

Application

• Polyurethane Elastomers & Foams: Serves as a key soft segment polyol for producing flexible, resilient, and hydrolysis-resistant PU materials.
• High-Performance Coatings & Inks: Imparts excellent flexibility, adhesion, and chemical resistance to polyurethane-based coating systems.
• Adhesives & Sealants: Used in formulating polyurethane adhesives that require strong bonding, durability, and resistance to environmental factors.
• Biodegradable & Biomedical Polymers: Acts as a precursor in the synthesis of biodegradable polymers and biocompatible materials for medical applications.
• Thermoplastic Polyurethanes (TPU): Enhances the softness, low-temperature performance, and processing of TPUs.
• Resin Modification: Employed as a modifier for other resins to improve impact resistance, flexibility, and weatherability.

Basic Information

Product Name	Polycaprolactone Triol
CAS No.	54735-63-6
Molecular Formula	CnH2n+2O4 (Polymeric)
Molecular Weight	Variable (Typically 300-3000 g/mol)
Synonyms	PCL Triol; Poly(ε-caprolactone) Triol; ε-Caprolactone Triol; Trihydroxy-Terminated Polycaprolactone; Polycaprolactone Polyol, Tri-functional; Poly(oxy-1-oxo-1,6-hexanediyl), α-hydro-ω-hydroxy-, triester with 1,2,3-propanetriol; Caprolactone Triol; Tone Polyol (Trade Name Series)
EINECS	Contact for details

Quality Control

Our Polycaprolactone Triol is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure consistency in hydroxyl value, acid value, viscosity, and moisture content, meeting precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the 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
Hydroxyl Value (mg KOH/g)	As per grade (e.g., 50-200)
Acid Value (mg KOH/g)	≤ 1.0
Moisture Content (%)	≤ 0.1
Viscosity @ 25°C (cP)	As per grade
Molecular Weight (Mn)	As per grade
Functionality	~3

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