| 发明名称 |
Method for marking hydrocarbons with anthraquinone imines |
| 摘要 |
A method for invisibly marking a liquid petroleum hydrocarbon. The method comprises adding to the liquid petroleum hydrocarbon at least one dye having formula (I) wherein R<1>, R<2>, R<3 >and R<4 >independently are aryl or aromatic heterocyclic; and wherein the dye has an absorption maximum in the range from 710 nm to 900 nm.
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| 申请公布号 |
US2004102340(A1) |
申请公布日期 |
2004.05.27 |
| 申请号 |
US20030700993 |
申请日期 |
2003.11.04 |
| 申请人 |
HO KIM SANG;STEPHENS RANDALL WAYNE |
发明人 |
HO KIM SANG;STEPHENS RANDALL WAYNE |
| 分类号 |
C10L1/232;C09B5/62;C10L1/00;C10L1/22;C10L1/228;C10L10/08;C10M171/00;(IPC1-7):C10M133/22 |
主分类号 |
C10L1/232 |
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