Time temperature indicators

Details Time temperature indicators Time temperature indicators

1974-01-16

1976-06-29

Sebastian, Leland A.

Chemistry: physical processes

Physical processes

Crystallization

23230R, 23230B, 73356, 116114V, 252408, 426 88, G01K 304, G01K 310, G01K 1112, G01N 3122

Patent

active

039664147

ABSTRACT:
A system operable to signal the attainment of a preselected time-temperature integral for monitoring the temperature history of a product utilizes a free-radical sensitive dye and a peroxide on a carrier.

REFERENCES:
patent: 1216303 (1915-12-01), Freeman
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patent: 2671028 (1954-03-01), Clark
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patent: 3067015 (1962-12-01), Lawdermilt et al.
patent: 3390121 (1968-06-01), Burford et al.
patent: 3751382 (1973-08-01), Ljungberg et al.
patent: 3768976 (1973-10-01), Hu et al.
patent: 3853471 (1974-12-01), Rittersdorf et al.
patent: 3853472 (1974-12-01), Rittersdorf et al.

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