Kraton Corp. recently announced its new Kraton™ DX0222, a styrenic block copolymer designed for radiation-curable and pressure-sensitive hot-melt adhesives. Kraton DX0222 reportedly has high thermal stability at normal process temperatures with excellent reactivity toward radiation curing. It is compatible with SIS and SBS-based adhesives, so it can be processed on the same lines. 

“Radiation-curing technology is a fast-growing area offering opportunities to achieve properties such as high temperature and solvent resistance that are not possible with traditional systems,” said Peter Migchels, global Adhesives marketing director at Kraton. “Ultraviolet and electron beam curing technologies can be used in different hot-melt systems, but they require dedicated products to achieve proper reactivity, good adhesion properties and low, stable viscosities. Kraton DX0222 polymer can be formulated similar to conventional hot-melt adhesives and offers the high performance that formulators need.”

Compared to competitive systems, Kraton DX0222 reportedly shows excellent adhesion on non-polar substrates, and its hydrophobic character provides excellent water resistance. The company reports that its SYLVALITE™ RE 80HP resin can be combined with Kraton DX0222 to deliver excellent adhesive performance with minimal impact on UV reactivity.

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