Title:
Black-and-white photothermografic and thermograficelements comprising amine compounds as contrast e nhancers
Document Type and Number:
WIPO Patent Application WO1997011406
Kind Code:
A3
Abstract:
Hydroxylamine, alkanolamine, and ammonium phthalamate compounds are useful as contrast enhancers when used in combination with (i) hindered phenol developers, and (ii) trityl hydrazide and/or formyl-phenyl hydrazine co-developers, to produce ultra-high contrast black-and-white photothermographic and thermographic elements. The photothermographic and thermographic elements may be used as a photomask in a process where there is a subsequent exposure of an ultraviolet or short wavelength visible radiation-sensitive imageable medium.
Inventors:
SIMPSON SHARON M (US)
Application Number:
PCT/US1996/013513
Publication Date:
April 24, 1997
Filing Date:
August 19, 1996
Export Citation:
Assignee:
IMATION CORP (US)
International Classes:
B41M5/323; G03C1/498; G03C5/08; G03F1/54; G03F7/07; G03F7/26; B41M5/32; G03C1/06; (IPC1-7): G03C1/498; G03F1/12
Domestic Patent References:
WO1996021174A2 | 1996-07-11 |
Foreign References:
EP0235751A2 | 1987-09-09 | |||
US4088496A | 1978-05-09 | |||
US5030547A | 1991-07-09 | |||
EP0481565A1 | 1992-04-22 |
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