摘要:
Chemiluminescent materials are provided that include an encapsulated oxalate-containing composition that includes a core portion and a polymeric coating, a peroxide source, and a fluorescent dye. The core portion includes an oxalate; a polymerizable component composition that polymerizes upon exposure to ultraviolet radiation; a photosensitizer; and an ultraviolet screening agent. The polymeric coating layer surrounding the core portion comprises a polymer derived from the polymerizable component composition. A fluorescent dye may be intermixed in the oxalate-containing composition, intermixed with the peroxide source, present in the chemiluminescent material as a separate dye layer or particle, or present within another component of the chemiluminescent material. A method for making the chemiluminescent material is also provided.
摘要:
AN INFRARED FLUORESCENT SOLUTION COMPRISING 16,17-DIALKOXYVIOLANTHRONES IN A SOLVENT, AND A METHOD FOR OBTAINING INFRARED EMISSION BY RADIANT OR CHEMICAL EXCITATION OF THE FLUORESCENT SOLUTION.
摘要:
Blue vat dyes are obtained by reaction of dihydroxydibenzanthrone and an aldehyde in chlorosulfonic acid. These dyes can be optionally chlorinated and/or substituted by sulfonamido groups. They are suitable in particular for dyeing cellulose fibres.
摘要:
A process for the preparation of bisalkoxy(iso)violanthrenediones involves alkylating the corresponding bishydroxyl compounds in an organic reaction medium with methyl benzoate as the reaction medium.The ester can easily be regenerated and is stable under the reaction conditions.