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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 aesth

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.

대표청구항 ▼

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 aesth

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. ry, 439/521; US-5088734, 19920200, Glava, 273/073; US-5098421, 19920300, Zook, 604/367; US-5126182, 19920600, Douglas, 428/090; US-5149736, 19920900, Gamarra, 524/490; US-5153254, 19921000, Chen, 524/505; US-5159022, 19921000, Ikematu, 525/250; US-5167649, 19921200, Zook, 604/307; US-5173573, 19921200, Jervis, 174/138; US-5177143, 19930100, Toy, 524/848; US-5181914, 19930100, Zook, 604/307; US-5191752, 19930300, Murphy, 054/044.5; US-5221534, 19930600, Deslauriers, 424/078.03; US-5239723, 19930800, Chen, 015/104; US-5262468, 19931100, Chen, 524/476; US-5313019, 19940500, Brusselmans, 174/093; US-5324222, 19940600, Chen, 446/034; US-5330452, 19940700, Zook, 604/307; US-5334646, 19940800, Chen, 524/474; US-5336708, 19940800, Chen, 524/474; US-5459193, 19951000, Anderson, 524/505; US-5475890, 19951200, Chen, 015/104; US-5479952, 19960100, Zachariades, 132/321; US-5559165, 19960900, Paul, 523/111; US-5606149, 19970200, Yaworski, 174/092; US-5618595, 19970400, Matsushima et al., 428/035.2; US-5618882, 19970400, Hammond, 525/092; US-5624294, 19970400, Chen, 446/253; US-5626657, 19970500, Pearce, 106/122; US-5633286, 19970500, Chen, 524/474; US-5655947, 19970800, Chen, 446/046; US-5863977, 19990100, Fisher; US-5872201, 19990200, Cheung; US-5929138, 19990700, Mercer; US-5952396, 19990900, Chang, 522/001; US-5994446, 19991100, Graykys; US-5994450, 19991100, Pearce, 524/505