Compositions – Organic luminescent material containing compositions – Natural resin – cellulose – or derivatives containing
Patent
1998-09-15
2000-03-14
Koslow, C. Melissa
Compositions
Organic luminescent material containing compositions
Natural resin, cellulose, or derivatives containing
1061701, 10616101, 1061711, 8518, 8519, 8528, 8648, 8661, C09K 1102, D06P 360
Patent
active
060368853
ABSTRACT:
A cellulosic ester has associated with the ester at least one near infrared fluorophore. A method for incorporating the near infred fluorophore into the cellulosic ester is also provided. In the method, the near infrared fluorophore is dissolved in a strong acid and precipitated to form an acid paste. The paste is then added to an activated cellulose, such as a hydrolyzed cellulose acetate, in the presence of at least one acid and acid anhydride. Advantageously, such marked cellulosic materials can be solvent spun into staple fibers which may be further utilized in known materials, webs and articles.
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Barlow, Jr. Fred Dewey
Boyd Edwin Taylor
Krutak, Sr. James John
McCray Thomas Vernon
Mitchell Melvin Glenn
Eastman Chemical Company
Graves Bernard J.
Gwinnell Harry J.
Koslow C. Melissa
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