B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 81/26 (2006.01) B65D 65/38 (2006.01) B65D 81/18 (2006.01) C05G 3/00 (2006.01) C06B 45/10 (2006.01) C06B 45/18 (2006.01) C08F 283/00 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08G 65/20 (2006.01) C08G 81/00 (2006.01) C08G 81/02 (2006.01) C09J 171/02 (2006.01)
Patent
CA 2097908
2097908 9210414 PCTABS00013 Food may be packaged and preserved for extended periods using intelligent polymers formed into food containers which have specific and variable gas permeabilities. The polymers used in forming the food packages are intelligent in that they have permeabilities which may be radically and reversibly changed by relatively small changes in temperature. By using different types and formulations of polymers and various temperatures, it is possible to create an environment within the food package which adjusts to the respiration of the food so as to best preserve the color, quality and/or shelf life of the food. The polymers are side-chain crystallisable polymers designed and formulated so as to provide a material which is substantially impermeable to a gas such as oxygen, carbon dioxide or water vapor at a temperature below a give phase transition point and permeable to the same gas at a temperature above that point.
Gowling Lafleur Henderson Llp
Landec Corporation
Landec Labs Inc.
LandOfFree
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