|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||374/106; 374/162; 374/159; 116/216|
|§371/§102 date||20021008 (20021008)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 8 인용 특허 : 32|
A full-history time-temperature indicator system which is capable of exhibiting a time-temperature dependent and visually detectable chemical reaction, useful for monitoring the time and temperature exposure of food products. The system comprises an immobilized reactant, such as Fe3+, and a mobile reactant, such as Fe(CN)64-, initially contained in separate compartments, and separated by a sealing. The system is activated by removing a sealing between the compartments whereby the mobile reactant in a time-temperature dependent manner is brought into con...
The invention claimed is: 1. A full-history time-temperature indicator system which exhibits a time-temperature dependent and visually detectable, substantially irreversible chemical reaction, which system responds independently of a temperature threshold and provides a cumulative response to the time and storage conditions to which the system has been exposed, the system comprising at least one immobilized and at least one mobile reactant, at least one of said immobilized and mobile reactants comprising a metal compound, said immobilized reactant being...