Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1993-12-30
1994-08-09
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
528272, 528288, 528289, 528290, 528291, 528292, 528293, 528295, 528298, 528299, 528300, 528301, 528302, 528305, 528307, 528308, 528 26, 528 28, 528 29, 528 30, 528 32, 528 40, 528 42, 524601, 524602, 524603, 524606, 524607, 524608, 524609, 25230116, 25230119, 25230135, 428357, 428481, 209 33, 209577, C08K 320
Patent
active
053367146
ABSTRACT:
Provided are water-dissipatable, sulfo-containing polyesters and polyester-amides having copolymerized therein thermally stable near infrared flourophoric compounds. The polymers are useful in coating or ink compositions, which are in turn useful for marking articles for identification/authentication purposes. Also provided is a method for invisibly marking such articles and a method for detecting and sorting articles by utilizing the near infrared flourophoric ink or coating compositions.
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Coates Clarence A.
Cushman Michael R.
Krutak James J.
Parham William W.
Patonay Gabor
Acquah Samuel A.
Eastman Chemical Company
Graves, Jr. Bernard J.
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