Laminating adhesives are used for bonding two substrates together. They can be used in a variety of applications, such as food packaging, aerospace, automobiles, electronics or solar panels. The major technologies include solventborne, waterborne, two-component urethanes and UV-curable resins. UV technology is rapidly gaining acceptance in a variety of industries due to its environmental and economic advantages.1
During recent years, market demand has been strong for liquid optically clear adhesives (LOCA) for display or touchscreen applications. Key performance requirements include strong bonding strength to the substrates, excellent reliability, high optical clarity and superior moisture resistance. For high-quality displays, low dielectric constant bonding adhesives are also necessary.