4,4′-Methylenebis(2,6-dimethylphenylcyanate) CAS 101657-77-6
Low viscosity, easy processing: The methyl group blocks the intermolecular forces, resulting in a low melt viscosity. 4,4′-Methylenebis(2,6-dimethylphenylcyanate) (CAS 101657-77-6) is suitable for RTM, winding, and prepreg processes.
Low dielectric, high-frequency stability: After curing, Dk ≈ 2.9, Df < 0.001 (10GHz). The loss is extremely low at high frequencies, making it suitable for 5G/6G millimeter wave scenarios.
High heat resistance, low moisture absorption: Tg ≈ 260–290℃, long-term service temperature 190–220℃; water absorption rate < 0.8%, and the performance retention rate in humid heat environments is high.
Low toxicity, no BPA: A bisphenol A substitute, without endocrine disruption risks, and with higher safety.
| Item | Specifications |
| CAS | 101657-77-6 |
| Form | Powder |
| Density | 1.14 |
| Flash point | 162°C |
1. High-frequency high-speed copper-clad laminate (core)
4,4′-Methylenebis(2,6-dimethylphenylcyanate) is used in 5G/6G base station antenna boards, millimeter-wave radar boards, and high-speed server PCBs, replacing BADCy / epoxy, significantly reducing signal loss and enhancing transmission rate.
Representative: Hydrocarbon resin copper-clad laminate, high-frequency PTFE composite board's matrix resin.
2. High-end electronic packaging and substrates
4,4′-Methylenebis(2,6-dimethylphenylcyanate) chip packaging substrate, IC carrier board, high-frequency connector, insulating spacer, suitable for lead-free high-temperature welding and long-term humid heat conditions.
3. High-performance composite materials and coatings
4,4′-Methylenebis(2,6-dimethylphenylcyanate) ablative-resistant material, high-temperature insulation coating, electromagnetic shielding material; copolymerized with epoxy / BMI to balance cost and performance.
• Standard Packing: 25 kg/bag; 25 kg/drum
• MOQ: to be confirmed by grade and destination
• Lead Time: to be confirmed by order quantity and production schedule
• Shipping: sea / air / express options available
• Store in a cool, dry, and well-ventilated place.
• Keep container tightly closed and protected from moisture.
• Avoid direct sunlight, heat, and open flame.
• Follow SDS guidance for incompatible materials.
