Single and double wall insulated containers

Details Single and double wall insulated containers Single and double wall insulated containers

B - Operations, Transporting

65

D

B65D 6/00 (2006.01)

Patent

CA 2291607

Paper Insulating containers are constructed by applying a thin extruded Polymer Foam sheet to a paper cup outer sidewall. The Foam sheet can be laminated to paper board to form a wrap. The laminate is die cut to the desired shape and coverage. Polyethylene and polypropylene foam are the preferred materials but thin wall polystyrene foam can be used. Another insulated cup design incorporates a Polymer Insert and a paper outer cup to form a double wall structure. The designs are rated to operate with contents of 190°F. The two wall cup provides a low surface temperature typically in the range of 115°F to 130°F while the paper foam laminate wrap provides surface temperatures in the 125°F to 135°F range using foam of .040" to .060" thick.

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