1
Himangshu R Bhattacharjee: Photoactivatable leuco base time-temperature indicator. LifeLines Technology, Arthur J Plantamura, April 17, 1990: US04917503 (62 worldwide citation)

A photoactivated time-temperature indicator is based on a leuco base system. A thermally insensitive, white ("inactive") leuco base (or a mixture of such leuco bases) is mixed, preferably in a polymeric matrix, with a material that generates acid upon exposure to light. Photoexcitation, preferably b ...


2
Bhattacharjee Himangshu Ranjan: Indicateur de duree-temperature a leucobase photoactivable, Photoactivatable leuco base time-temperature indicator. Lifelines Technology, GOWLING LAFLEUR HENDERSON, July 30, 1991: CA1286881

ABSTRACT OF THE DISCLOSUREPHOTOACTIVATABLE LEUCO BASETIME-TEMPERATURE INDICATOR A photoactivated time-temperature indicator isbased on a leuco base system. A thermally insensitive,white ("inactive") leuco base (or a mixture of suchleuco bases) is mixed, preferably in a polymeric matrix,with a materi ...


3
Bhattacharjee Himangshu Ranjan: Photoactivatable leuco base time-temperature indicator. Allied Corporation, WINTER Richard C, June 4, 1987: WO/1987/003367

A photoactivated time-temperature indicator is based on a leuco base system. A thermally insensitive, white (''inactive'') leuco base (or a mixture of such leuco bases) is mixed, preferably in a polymeric matrix, with a material that generates acid upon exposure to light. Photoexcitation, preferably ...