Description

Polycaprolactone Triol is a versatile, hydroxyl-terminated polyester polyol derived from caprolactone. This compound is a crucial building block in the formulation of high-performance polyurethane elastomers, coatings, and adhesives, offering excellent hydrolytic stability, low-temperature flexibility, and mechanical property control. It is essential for manufacturers in the polyurethane, specialty coatings, and advanced materials sectors seeking to enhance product durability and performance.

Application

• Polyurethane Elastomers: A key soft segment component for producing flexible, durable, and hydrolysis-resistant elastomers used in wheels, rollers, and industrial parts.
• Coatings & Adhesives: Used in high-performance polyurethane coatings, sealants, and adhesives that require excellent weatherability, chemical resistance, and adhesion.
• Biomedical & Resorbable Materials: Serves as a precursor in the synthesis of biodegradable polymers for controlled drug delivery systems, tissue engineering scaffolds, and surgical sutures.
• Thermoplastic Polyurethanes (TPU): Imparts softness, resilience, and processing advantages in TPUs for films, fibers, and molded goods.
• 3D Printing Resins: A functional component in formulations for stereolithography (SLA) and other additive manufacturing processes, contributing to toughness and precision.
• Composite Materials: Acts as a modifier or compatibilizer in polymer composites to improve impact strength and interfacial bonding.

Basic Information

Item	Detail
Product Name	Polycaprolactone Triol
CAS No.	39280-09-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details (Grade Dependent)
Synonyms	Poly(ε-caprolactone) Triol; PCL Triol; ε-Caprolactone Triol; Trihydroxy-Terminated Polycaprolactone; Polycaprolactone Polyol (Triol); Poly(oxy-1-oxo-1,6-hexanediyl), α,α',α''-1,2,3-propanetriyltris[ω-hydroxy-; CAPA 3050 (Trade Name); Tone 0305 (Trade Name)
EINECS	Contact for details

Quality Control

Our Polycaprolactone Triol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in hydroxyl value, acid value, viscosity, and moisture content. Certificates of Analysis (COA) are provided with every shipment, documenting compliance with agreed specifications. We support our global clients with full traceability and can provide material tailored to meet specific regulatory or application needs.

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). To prevent moisture absorption and potential degradation, containers must be kept tightly sealed when not in use. Keep away from strong oxidizers, acids, and bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Hydroxyl Value (mg KOH/g)	As per grade (e.g., 50-60)
Acid Value (mg KOH/g)	≤ 1.0
Moisture Content (%)	≤ 0.1 (Karl Fischer)
Viscosity (cP @ 25°C)	Grade dependent
Molecular Weight (Mn)	Grade dependent (GPC)
Color (APHA)	≤ 100

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