Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material
Patent
1991-05-13
1993-10-26
Loney, Donald J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Nonplanar uniform thickness material
428215, 4283148, 4283157, 4283159, 52799, B32B 328
Patent
active
052564673
ABSTRACT:
A corrugated cardboard includes a corrugated core sheet comprising a plastic sheeting having thereon a skin layer having a specific cell diameter and a plastic film laminated on at least one side of the corrugated sheet. This corrugated cardboard is improved in terms of heat insulation and so can be used for packing such materials as petals and perishables, while protecting them against heat and keeping them fresh. More preferably, shielders may be provided in the corrugated core sheet grooves. A specific method for making such cardboard products is also provided.
REFERENCES:
patent: 3308006 (1967-03-01), Kresse et al.
Kato Eiji
Loney Donald J.
Nihon Dimple Carton Co., Ltd.
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