Packaging method using elastic memory foam as safety indicator for heat damage
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65B-023/22
B65B-003/04
출원번호
US-0797455
(2001-03-01)
발명자
/ 주소
Anderson, D. W.
출원인 / 주소
International Paper Company
대리인 / 주소
Ostrager Chong & Flaherty LLP
인용정보
피인용 횟수 :
5인용 특허 :
12
초록▼
An open cell foam with thermal memory characteristic is used as an indicator for heat damage to an article containing heat sensitive contents packaged in a carton. The foam material may be a polyurethane-based thermoplastic polymer referred to as "Cold Hibernated Elastic Memory" (CHEM) foam. The the
An open cell foam with thermal memory characteristic is used as an indicator for heat damage to an article containing heat sensitive contents packaged in a carton. The foam material may be a polyurethane-based thermoplastic polymer referred to as "Cold Hibernated Elastic Memory" (CHEM) foam. The thermal memory foam can be produced in compressed form and used as inserts in the carton. Upon exposure to a temperature at or above the foam glass transition temperature, the foam insert expands to substantially its original shape (volume) so as to apply a compressive force against the article, making it difficult to remove from the carton. Alternatively, the expanded foam will deform the carton walls, providing an external indication of heat damage. The foam can also be used as a heat-indicating element in an inspection panel of the carton, which ruptures so as to provide external indication of heat damage.
대표청구항▼
An open cell foam with thermal memory characteristic is used as an indicator for heat damage to an article containing heat sensitive contents packaged in a carton. The foam material may be a polyurethane-based thermoplastic polymer referred to as "Cold Hibernated Elastic Memory" (CHEM) foam. The the
An open cell foam with thermal memory characteristic is used as an indicator for heat damage to an article containing heat sensitive contents packaged in a carton. The foam material may be a polyurethane-based thermoplastic polymer referred to as "Cold Hibernated Elastic Memory" (CHEM) foam. The thermal memory foam can be produced in compressed form and used as inserts in the carton. Upon exposure to a temperature at or above the foam glass transition temperature, the foam insert expands to substantially its original shape (volume) so as to apply a compressive force against the article, making it difficult to remove from the carton. Alternatively, the expanded foam will deform the carton walls, providing an external indication of heat damage. The foam can also be used as a heat-indicating element in an inspection panel of the carton, which ruptures so as to provide external indication of heat damage. 19560400, Rowley; US-2780253, 19570200, Joa; US-2894292, 19590700, Gramespacher; US-3045294, 19620700, Livezey, Jr.; US-3100556, 19630800, De Ridder; US-3125138, 19640300, Bolenbach; US-3182769, 19650500, De Ridder; US-3203149, 19650800, Soddy; US-3267630, 19660800, Omholt; US-3282010, 19661100, King, Jr.; US-3310919, 19670300, Bue et al.; US-3347048, 19671000, Brown et al.; US-3387422, 19680600, Wanzer; US-3460304, 19690800, Braeuninger et al.; US-3481810, 19691200, Waite; US-3526420, 19700900, Brancalone; US-3538665, 19701100, Gohner; US-3553919, 19710100, Omholt; US-3555762, 19710100, Costanzo, Jr.; US-3694983, 19721000, Couquet; US-3714747, 19730200, Curran; US-3731445, 19730500, Hoffman et al.; US-3759007, 19730900, Thiele; US-3768846, 19731000, Hensley et al.; US-3859000, 19750100, Webster; US-3902293, 19750900, Witt et al.; US-3908053, 19750900, Hettich; US-3936551, 19760200, Elmendorf et al.; US-3988187, 19761000, Witt et al.; US-4090338, 19780500, Bourgade; US-4099358, 19780700, Compaan; US-4169688, 19791000, Toshio; US-4242390, 19801200, Nemeth; US-4299070, 19811100, Oltmanns et al.; US-4426820, 19840100, Terbrack et al.; US-4471012, 19840900, Maxwell; US-4501102, 19850200, Knowles; US-4561233, 19851200, Harter et al.; US-4612745, 19860900, Hovde; US-4641469, 19870200, Wood; US-4653242, 19870300, Ezard; US-4703597, 19871100, Eggemar; US-4715162, 19871200, Brightwell; US-4738071, 19880400, Ezard; US-4769963, 19880900, Meyerson; US-4819932, 19890400, Trotter, Jr,; US-4831806, 19890500, Niese et al.; US-4845907, 19890700, Meek; US-4905442, 19900300, Daniels; US-5029425, 19910700, Bogataj; US-5113632, 19920500, Hanson; US-5117603, 19920600, Weintraub; US-5165816, 19921100, Parasin; US-5179812, 19930100, Hill; US-5216861, 19930600, Meyerson; US-5253464, 19931000, Nilsen; US-5271564, 19931200, Smith; US-5295341, 19940300, Kajiwara; US-5349796, 19940900, Meyerson; US-5390457, 19950200, Sjolander; US-5433806, 19950700, Pasquali et al.; US-5471831, 19951200, Nystrom; US-5497589, 19960300, Porter; US-5502939, 19960400, Zadok et al.; US-5540025, 19960700, Takehara et al.; US-5567497, 19961000, Zegler et al.; US-5570554, 19961100, Searer; US-5597024, 19970100, Bolyard et al.; US-5630304, 19970500, Austin; US-5671575, 19970900, Wu; US-5706621, 19980100, Pervan; US-5768850, 19980600, Chen; US-5797237, 19980800, Finkell, Jr.; US-5823240, 19981000, Bolyard et al.; US-5827592, 19981000, Van Gulik et al.; US-5860267, 19990100, Pervan; US-5935668, 19990800, Smith; US-5943239, 19990800, Shamblin et al.; US-5968625, 19991000, Hudson; US-5987839, 19991100, Hamar et al.; US-6006486, 19991200, Moriau; US-6094882, 20000800, Pervan; US-6101778, 20000800, Martensson; US-6119423, 20000900, Costantino; US-6134854, 20001000, Stanchfield; US-6148884, 20001100, Bolyard et
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이 특허에 인용된 특허 (12)
English ; Jr. Edgar (45125 Redwood Ave. Lancaster CA 93534), Article of manufacture comprising protective packaging for packageable objects of a fragile or perishable nature.
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