Description

Dicyclopentadienylbisphenol Cyanate Ester is a high-performance, multifunctional cyanate ester monomer designed for advanced thermoset polymer systems. This compound is valued for its ability to impart exceptional thermal stability, low dielectric loss, and superior mechanical properties to cured resins. It is primarily sought by manufacturers in the aerospace, electronics, and advanced composites industries for producing high-temperature adhesives, structural composites, and electronic encapsulants.

Application

• High-Temperature Structural Composites: As a matrix resin for carbon fiber and glass fiber prepregs used in aerospace components and engine parts.
• Electronic Encapsulation & Circuit Boards: For manufacturing high-frequency, low-loss printed circuit boards (PCBs) and underfill encapsulants due to its excellent dielectric properties.
• Advanced Adhesives & Bonding Films: Formulation of high-performance structural adhesives for applications requiring sustained strength at elevated temperatures.
• Radome & Microwave Transparent Materials: Production of composite radomes and other electromagnetic window materials where signal transparency and environmental resistance are critical.
• Potting Compounds & Molding Powders: Used in the creation of potting compounds for sensitive electronic assemblies and molding powders for intricate, high-strength parts.
• Modifier for Epoxy & Other Resins: Acts as a co-reactant or toughening agent to enhance the thermal and mechanical performance of epoxy, bismaleimide, and other thermoset systems.

Basic Information

Product Name	Dicyclopentadienylbisphenol Cyanate Ester
CAS No.	135507-71-0
Molecular Formula	C25H20N2O2
Molecular Weight	380.44 g/mol
Synonyms	Dicyclopentadiene Bisphenol Cyanate Ester; Bis(4-cyanatophenyl) Dicyclopentadiene; DCPD Cyanate Ester; Dicyclopentadienyl Diphenyl Cyanate; 2,2-Bis(4-cyanatophenyl)dicyclopentadiene; Bisphenol Dicyclopentadiene Cyanate Ester; Cyanate ester resin based on dicyclopentadiene bisphenol
EINECS	Contact for details

Quality Control

Our Dicyclopentadienylbisphenol Cyanate Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistency and meets high-purity standards suitable for advanced material formulations. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical properties is provided with every shipment.

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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	85 - 105 °C
Moisture Content (KF)	≤ 0.5%
Hydrolyzable Chloride	≤ 100 ppm
Viscosity (Melt, @ 120°C)	Contact for details

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