Halogen-free Laminates - Flame Retardants-Online

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Review of halogen-free Flame Retardants • Metal phosphinates Are a new class of FR developed by Clariant. Primarily designed for thermoplastics, this technology could establish itself in rigid and flexible printed circuit formulation as a synergist to modified resins (epoxy, CE, Benzoxazines, PPO, PPE or their blends) Besides its attractive price-performance ratio, one of the main feature is its neutral behavior on electrical properties, having _ virtually no impact on Dk/Df at higher frequencies. O R 1 P Halogen-free Laminates: The technology is there for an emerging market Public Marketing Thermosets BU Specialties Div. P&A 09.06.2006 Slide 14 • Aluminium Trihydrate (ATH) ATH is the largest FR by volume worldwide and is priced as a commodity. Main drawback is its low effectiveness, so it can only be used as synergist or for cost reasons. Its commercial use in FR4 material may be threaten by lead-free solder temperature. Possible alternative could be alumina monohydrate (or Boehmite) R 2 O M n+ n
Review of halogen-free Flame Retardants • Phosphazene compounds High purity grades of phosphazene are reported to be exclusively used commercially ín Japan. Several patents tend ot confirm their suitability, but costs (> 5.000 JPY/kg, approx. > 35 €/kg) should remain a brake for wider use. • Further potential candidates Supresta is introducing Fyrol® PMP as reactive FR / curing agent Halogen-free Laminates: The technology is there for an emerging market Public Marketing Thermosets BU Specialties Div. P&A 09.06.2006 Slide 15 O O (HO) n O P O O P O CH 3 CH 3 p (OH) m m,n = 0 or 1 Ciba reported potential use of melamine polyphosphate (Melapur® MP 200)
Page 1 and 2: Halogen-free Laminates: The technol
Page 3 and 4: Regional importance of commercial h
Page 5 and 6: Recent activities about “halogen
Page 7 and 8: What are “halogen-free” materia
Page 9 and 10: Technical requirements to FR system
Page 11 and 12: Review of halogen-free Flame Retard
Page 13: Review of halogen-free Flame Retard
Page 17 and 18: Review of halogen-free resin chemis
Page 19 and 20: Halogen-Free CCL • Commercially a
Page 21 and 22: Concerns about halogen-free materia
Page 23 and 24: Summary • A wide range of materia
Page 25: Public Marketing Thermosets BU Spec

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