发明授权
- 专利标题: Binders for use in the thermosensitive elements of substantially light-insensitive thermographic recording materials
- 专利标题(中): 用于基本上不透光的热敏记录材料的热敏元件的粘合剂
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申请号: US10859288申请日: 2004-06-02
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公开(公告)号: US07348296B2公开(公告)日: 2008-03-25
- 发明人: Carlo Uyttendaele , Ivan Hoogmartens , Huub Van Aert
- 申请人: Carlo Uyttendaele , Ivan Hoogmartens , Huub Van Aert
- 申请人地址: BE Mortsel
- 专利权人: Agfa HealthCare
- 当前专利权人: Agfa HealthCare
- 当前专利权人地址: BE Mortsel
- 代理机构: Leydig, Voit & Mayer, Ltd.
- 优先权: EP03101660 20030606
- 主分类号: B41M5/30
- IPC分类号: B41M5/30
摘要:
A substantially light-insensitive monosheet thermographic recording material comprising a support and on one side of the support a thermosensitive element, the thermosensitive element comprising at least one substantially light-insensitive silver salt of a carboxylic acid, at least one reducing agent therefor in thermal working relationship therewith and at least one binder, the at least one binder comprising at least one first polymer consisting of vinyl aceto-acetal monomer units and optionally monomer units selected from the group consisting of vinyl alcohol, vinyl acetate and itaconic acid monomer units, wherein the weight ratio of the at least one binder to the light-insensitive silver salt(s) of a carboxylic acid in the thermosensitive element is greater than 1.6; and the at least one binder optionally contains less than 40% by weight of a second polymer consisting of vinyl butyral monomer units and optionally vinyl alcohol and/or vinyl acetate monomer units.
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