2,2-Bis-(4-cyanatophenyl)propane with CAS 1156-51-0

What is 2,2-Bis-(4-cyanatophenyl)propane with CAS 1156-51-0?

2,2-Bis-(4-cyanatophenyl)propane (CAS 1156-51-0), also known as Bisphenol A cyanate ester, is a high-performance thermosetting resin monomer widely used in advanced composite materials and electronic encapsulation. It features excellent thermal stability, low dielectric constant, and superior mechanical strength, making it a key material in aerospace, electronics, and high-performance composites.

As a difunctional cyanate ester derived from Bisphenol A, it undergoes cyclotrimerization reactions to form triazine ring networks, resulting in highly crosslinked structures with outstanding thermal and dielectric properties.

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1. Advanced Composite Materials

Bisphenol A cyanate ester (CAS 1156-51-0) is widely used in carbon fiber composites, glass fiber composites, and aerospace-grade laminates. Its crosslinked triazine structure provides:

• High glass transition temperature (Tg > 250°C)

• Excellent dimensional stability

• Low moisture absorption

• Superior adhesion to reinforcing fibers

These properties make it ideal for aerospace structures, satellite components, and high-performance automotive composites.

2. Electronic and Electrical Applications

Owing to its low dielectric constant and excellent thermal endurance, 2,2-Bis-(4-cyanatophenyl)propane is a key material in:

• Printed circuit boards (PCBs)

• Semiconductor encapsulation resins

• High-frequency electronic substrates

• Adhesive formulations for electronic packaging

Its low outgassing and minimal dielectric loss ensure stability in microelectronic and communication equipment.

3. Adhesives and Coatings

The reactive cyanate ester groups enable self-polymerization or copolymerization with epoxy or bismaleimide resins. This improves:

• Crosslink density and mechanical strength

• Chemical and solvent resistance

• Long-term heat resistance

Therefore, it’s often used in heat-resistant coatings, adhesive systems, and structural composites requiring durability under extreme environments.

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25kgs/drum,9tons/20 'container