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Clear Plastic Glass Replacing Advances in Consumer Products

SpecialChem / May 25, 2009

Transparent plastics are used principally when clarity of vision through the material is a desired property (>92% light transmittance; < 2% haze). In consumer goods markets, there are numerous applications for a range of clear plastic resins such as polycarbonate (PC), polymethyl methacrylate (PMMA), and glycol modified polyethylene terephthalate (PETG). Groundbreaking work by market leader Bayer MaterialScience over the last half century has greatly enhanced polycarbonate properties/processability, and dramatically expanded end use applications. Pristine, a new family of metallocene-based polypropylene (PP) copolymers developed by Basell North America has exceptional 'glass-like' clarity akin to PC and PETG, along with good physical properties and processability. A new amorphous thermoplastic, Tritan copolyester from Eastman, is filling some gaps where traditional transparent thermoplastics fall short.

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