公开(公告)号：US09845390B1

公开(公告)日：2017-12-19

申请号：US15493461

申请日：2017-04-21

Applicant: Spectronics Corporation

Inventor： Daniel Scott Tyson

IPC: C09D11/50 ,  C09D11/06 ,  C09B57/08 ,  C09B67/40 ,  G01M3/20 ,  C09K11/06

CPC classification number: C09B57/08 ,  C09K11/06 ,  C09K2211/1029 ,  G01M3/20

Abstract: Provided are processes for producing fluorescent naphthalimide diesters of Formula (I), useful as fluorescent tracer dyes for fluid system leak detection, wherein each of R1 and R2 is, independently of the other, a saturated, linear hydrocarbon chain having from 2 to 10 carbon atoms; and each of Z1 and Z2 is, independently of the other, a fatty acid moiety having a saturated or unsaturated, linear or branched, hydrocarbon chain having from 8 to 24 carbon atoms, and from 0 to 4 double bonds. Also provided are compositions of the aforesaid diesters of Formula (I).