Invention Grant
US06348305B2 Photographic element with a layer improving the adhesion to the support base
失效
具有改善与支撑基底的粘附性的层的照相元件
- Patent Title: Photographic element with a layer improving the adhesion to the support base
- Patent Title (中): 具有改善与支撑基底的粘附性的层的照相元件
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Application No.: US09770011Application Date: 2001-01-25
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Publication No.: US06348305B2Publication Date: 2002-02-19
- Inventor: Paola Puppo , Alberto Valsecchi , Carlo Barlocco
- Applicant: Paola Puppo , Alberto Valsecchi , Carlo Barlocco
- Priority: ITSV200A004 20000215
- Main IPC: G03C193
- IPC: G03C193

Abstract:
A photographic element comprising a film support base, an adhesion promoting layer, a subbing layer and at least one light-sensitive silver halide emulsion layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane, and the subbing layer, selected within the group consisting of a hydrophilic colloidal layer or a layer comprising a continuous gelled network of inorganic particles, is positioned between the adhesion promoting layer and the emulsion layer. The present invention also refers to a photographic element comprising a film support base having coated on one side thereof at least one light-sensitive silver halide emulsion layer and on the opposite side thereof an adhesion promoting layer and at least one auxiliary layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane. The present invention further refers to a film support base having coated on at least one side thereof an adhesion promoting layer and a subbing layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane and the subbing layer is selected within the group consisting of a hydrophilic colloidal layer or a layer comprising a continuous gelled network of inorganic particles. Finally, the present invention also refers to a film support base having coated on one side thereof an adhesion promoting layer and at least an auxiliary layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane binder and the auxiliary layer is an antistatic layer, a magnetic layer, a protective layer or a lubricant layer. The adhesion of the emulsion layers and/or of the auxiliary layers to the support base is improved both under wet and dry conditions.
Public/Granted literature
- US20010024770A1 Photographic element with a layer improving the adhesion to the support base Public/Granted day:2001-09-27
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