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Enviroclear Barrier Technology for PET & Polyolefins. Aims / Goals of Project. Development of a novel barrier technology for plastics packaging Market need: PET good but not great... (fruit juices, beer, jams, preserves, etc.) Basic requirements: Good oxygen barrier
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Aims / Goals of Project • Development of a novel barrier technology for plastics packaging • Market need: PET good but not great... (fruit juices, beer, jams, preserves, etc.) • Basic requirements: • Good oxygen barrier • Good adhesion (no delamination) • Flexible • Recyclable • Transparent • No scuffing • Blister resistance • Cost-effective
Barrier Technologies in Market Multilayers Materials e.g. EVOH, MXD6 e.g. PEN(polyethylene naphthalate) x Requires new production lines x Expensive x Complicated / difficult to run x Barrier still not high enough (e.g. PEN x Cost of barrier layer 5xPET barrier) x Recycling problematic x Generally requires binding layers (i.e. min 5 layers) x Special very expensive molds and machines x Barrier not high enough, degrades with humidity e.g. SiOx, diamond-like carbon, amorphous e.g. Epoxy-amine spray coating Carbon x Matrix oxygen x Low speeds x Recycling? x High costs (vacuum) x Cracking & delamination x Recycling Inside coatings Outside coatings
Patent Status • Patents • Received favourable international preliminary report on patentability from PCT • Have entered national patenting phase • Granted: USA, Canada, Europe (EPO), France, Netherlands, South Africa, Japan, China, Australia