Thermal imaging elements having improved stability

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(11)

EP 1 525 996 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	11.05.2005 Bulletin 2005/19

(43)	Date of publication A2:
	27.04.2005 Bulletin 2005/17

(21)	Application number: 05001463.8

(22)	Date of filing: 16.11.2001

(51)	International Patent Classification (IPC)⁷: B41M 5/38

(84)	Designated Contracting States:
	DE FR GB IT

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Priority:

21.11.2000 US 252267 P

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	01995195.3 / 1335835

(71)	Applicant: E.I. du Pont de Nemours and Company
	Wilmington, DE 19898 (US)

(72)	Inventors:
	Dessauer, Rolf Greenville, DE 19807 (US) Weed, Gregory, Charles Towanda, PA 18848 (US) Patricia, Jeffrey, Jude Apalachin, NY 13732 (US)

(74)	Representative: Thomson, James B.
	Frank B. Dehn & Co. 179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)

(54)	Thermal imaging elements having improved stability

(57) A thermally imageable element having a thermally imageable layer, wherein the thermally imageable layer has a thermal amplification additive and a stabilizer selected from the group consisting of amine type
compounds. These stabilizers present in thermally imageable layers maintain NIR stability during manufacture, and when the thermally imageable elements containing them are used in thermal imaging processes.

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