Injection blow-molded disposable tumbler and method of...

A - Human Necessities – 47 – G

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A47G 19/22 (2006.01) B29C 49/00 (2006.01) B29C 49/06 (2006.01) B65D 1/26 (2006.01)

Patent

CA 2348832

An injection blow-molded disposable tumbler is formed from a polymeric material and includes a fortified upper rim having a thickness greater than the adjacent sidewall. The tumbler may be formed of a variety of resinous materials and exhibits improved toughness and crush resistance as well as aesthetic qualities particularly desired by consumers. In a particularly preferred embodiment, thick- walled polycarbonate tumblers are prepared from hydrolysis-stabilized polycarbonate compositions while minimizing molded-in stress. In still further embodiments, nanocomposites compositions are used to form the containers of the invention.

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