Benzalphthalide sensitizers in thermal coatings

Tomoo Shibata; John R. Semler

doi:10.1117/12.19822

1 July 1990 Benzalphthalide sensitizers in thermal coatings

Tomoo Shibata, John R. Semler

Proceedings Volume 1253, Hard Copy and Printing Materials, Media, and Processes; (1990) https://doi.org/10.1117/12.19822
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

Benzalphthalide and a number of its analogues significantly enhance the sensitivity of thermal coatings. These sensitizers are effective in coatings developed by benzyl-p-hydroxybenzoate (benzylparaben) , 2 , 2 -bis (p-hydroxyphenyl) propane (bisphenol A) and bis-(3-allyl-4-hydroxyphenyl)sulfone in combination with a variety of leuco dyes. The background stability of the coatings depends upon the specific benzalphthalide employed.

Citation Download Citation

Tomoo Shibata and John R. Semler "Benzalphthalide sensitizers in thermal coatings", Proc. SPIE 1253, Hard Copy and Printing Materials, Media, and Processes, (1 July 1990); https://doi.org/10.1117/12.19822

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