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US 7,914,703 B2Granted
Poly(oxyalkylene)ated colorants and their use as fluorescent security taggants
AssigneeSun Chemical Corporation
InventorsRussell Schwartz, Don DeRussy, Daniel F. Gloster, Stephen Postle, Rakesh Vig, Ewell Cook, Tatiana Romanova
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Abstract
Certain poly(oxyalkylene) colorants are disclosed along with method of preparation thereof. A method of using these colorants as fluorescent security taggants is also disclosed.
Claims12
A perylene poly(oxyalkylene) bisimide compound having the following chemical formula I:
- wherein each of A and B is independently selected from the group consisting of:
- H, OH, OR4, N(R3)2, alkyl, F, Cl, Br, I, NO2, CN, −NCS, −SCN;
- R3 is selected from the group consisting of:
- alkyl, aralkyl, alkaryl, polyalkylene oxide;
- and each of R13 and R14 is independently a polyalkylene oxide.
2 more elements
Dependencies are inferred from the claim text.