Microwaveable containers having at least one undulant...

Details Microwaveable containers having at least one undulant... Microwaveable containers having at least one undulant...

H - Electricity

05

B

H05B 6/64 (2006.01) B29C 43/22 (2006.01) B29C 51/00 (2006.01) B65D 1/34 (2006.01) B65D 81/34 (2006.01) C08J 9/08 (2006.01) C08J 9/12 (2006.01) B29C 47/00 (2006.01) B29C 51/10 (2006.01)

Patent

CA 2264387

Disposable food contact compatible microwaveable containers having at least one undulent surface are disclosed. These containers including trays, bowls, plates, cups, buckets, souffle' dishes and lids are prepared from foamed polypropylene or foamed. propylene-ethylene copolymer and blends wherein an endothermic blowing agent coated with polystyrene or alpha methyl styrene is employed. These containers exhibit an undulent surface on at least one side and have a melting point of not less than 250°F, and they are dimensionally stable at temperatures up to at least 250°F and exhibit sufficient toughness to resist cutting with serrated disposable flatware.

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