Process for producing light-reflecting bodies

Details Process for producing light-reflecting bodies Process for producing light-reflecting bodies

B - Operations, Transporting

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B29D 11/00 (2006.01) B05D 5/06 (2006.01) F21V 7/22 (2006.01)

Patent

CA 1245019

Process for producing light-reflecting bodies Abstract A process for producing light-reflecting bodies is described. The wall of the light-reflecting body consists of a polyalkylene terephthalate and/or a copolyester thereof, containing in each case 10-40 % by weight of a finely-divided filler, a light-reflecting metal layer being applied directly to at least one surface of the wall. According to the novel process, a polyester moulding compound containing: a) 90-60 % by weight of a polyalkylene terephthalate and/or copolyester thereof, or of a mixture of polyalkylene terephthalates, and b) 10-40 % by weight of a finely-divided filler is subjected before shaping, at elevated temperature but at a temperature below the melting point of the moulding compound, to a vacuum treatment.

496523

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