Oil soluble taggants
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United States of America Patent
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Dec 15, 2020
Grant Date -
Nov 5, 2015
app pub date -
Jul 9, 2015
filing date -
May 26, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A process for detecting oil or lubricant contamination in the production of an article by adding a Stokes-shifting taggant to an oil or lubricant of a machine utilized to produce the article or a component thereof, irradiating the articles produced with a first wavelength of radiation, and monitoring the articles for emission of radiation at a second wavelength. The taggant can be in the form of a composition containing a Stokes-shifting taggant, which absorbs radiation at a first wavelength and emits radiation at a second wavelength, different from said first wavelength, dissolved or dispersed in an oil or lubricant.
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International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- A24B:MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING ....
- C10N:INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M
- C10M:LUBRICATING COMPOSITIONS
- B07C:POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BU....
- C07D:HETEROCYCLIC COMPOUNDS
- C10L:FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYN....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- C09B:ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PROD....
- A24C:MACHINES FOR MAKING CIGARS OR CIGARETTES
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