Microwaveable micronodular surface including polypropylene, mica and talc
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0917439
(1997-08-19)
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발명자
/ 주소 |
- Neculescu Cristian M.
- Rogers Richard J.
- Littlejohn Mark B.
|
출원인 / 주소 |
|
대리인 / 주소 |
Finnegan, Henderson, Farabow, Garrett & Dunner
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인용정보 |
피인용 횟수 :
7 인용 특허 :
5 |
초록
▼
Disposable food contact compatible microwaveable containers having at least one micronodular surface are disclosed. These containers including plates, bowls, cups, trays, buckets, souffle dishes, and lids are prepared from polypropylene or propylene-ethylene copolymer or blends, talc and mica mixtur
Disposable food contact compatible microwaveable containers having at least one micronodular surface are disclosed. These containers including plates, bowls, cups, trays, buckets, souffle dishes, and lids are prepared from polypropylene or propylene-ethylene copolymer or blends, talc and mica mixtures and pigment and are thermoformed into the shape of the desired article of manufacture exhibiting (a) a micronodular surface on at least one side; (b) a melting point of not less than about 250.degree. F.; these articles of manufacture being dimensionally stable and resistant to grease, sugar, and water at temperatures up to at least 250.degree. F. and being of sufficient toughness to resist cutting by serrated polystyrene flatware.
대표청구항
▼
[ We claim:] [1.] A microwaveable, food contact compatible disposable, rigid container comprising an extruded sheet consisting essentially of an admixture of polypropylene, mica, talc, a coupling agent for promoting adherence between the polypropylene and the mica and talc, and a pigment, thermoform
[ We claim:] [1.] A microwaveable, food contact compatible disposable, rigid container comprising an extruded sheet consisting essentially of an admixture of polypropylene, mica, talc, a coupling agent for promoting adherence between the polypropylene and the mica and talc, and a pigment, thermoformed by application of vacuum into the shape of a container wherein a loading level of mica and talc in the admixture is from about 7% to about 60% and the weight ratio of talc to the mica is controlled to achieve a micronodular surface on at least one side of the container, said container further exhibiting: a melting point of no less than about 250.degree. F.; said container being dimensionally stable and resistant to grease, sugar, and water at temperatures up to about 220.degree. F. and of sufficient toughness to be resistant to cutting by serrated polystyrene flatware.
이 특허에 인용된 특허 (5)
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Littlejohn Mark (Appleton WI) Juneau Michael P. (Neenah WI), Double seal food container.
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Huang Hwang-Wen (Taipei TWX), Method for manufacturing polypropylene film and sheet.
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Kobayashi Yukio (Kawasaki JPX) Azegami Hidenori (Kawasaki JPX) Sasaki Hitoshi (Kawasaki JPX), Plastic container and method for manufacturing the same.
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Abe Masaru (Osaka JPX) Kawai Yoichi (Kanagawa JPX) Maki Masami (Kanagawa JPX) Wada Katuo (Kanagawa JPX), Polypropylene resin compositions.
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Fisher John R. (Hockessin DE) Kaliski Edward J. (Greenville DE), Shaped microwaveable food package.
이 특허를 인용한 특허 (7)
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McCarthy,Donald C., Black food containers.
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Mark B. Littlejohn ; Anthony J. Swiontek ; Margaret P. Neer ; Cristian M. Neculescu ; Brigitte K. Weigert, Compartmented disposable plate with asymmetric rib geometry.
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Littlejohn Mark B. ; Swiontek Anthony J. ; Lamson Wayne W., Disposable servingware with nesting resistant flange patterns.
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Wu, Wen Pao; Forbes, Alan H., Multilayer polymer articles and process for making the same.
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Wu, Wen Pao; Deyo, Alan E., Sheets made of filled polymer compositions.
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Swiontek,Anthony J., Thermoformed food containers with enhanced rigidity.
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McCarthy, Donald C.; Cochran, II, Ronald L.; Littlejohn, Mark B.; Neculescu, Cristian M.; Patterson, Robert; Swiontek, Anthony J., Thermoformed polypropylene mineral-filled microwaveable containers having food contact compatible olfactory properties and process for their manufacture.
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