Invention Grant
- Patent Title: Photographic surface layers comprising dextran derivatives
- Patent Title (中): 包含葡聚糖衍生物的摄影表面层
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Application No.: US79081Application Date: 1987-07-29
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Publication No.: US4820613APublication Date: 1989-04-11
- Inventor: Joan T. Vermeersch , Hubert Vandenabeele , Jacques L. Vervecken , Daniel M. Timmerman
- Applicant: Joan T. Vermeersch , Hubert Vandenabeele , Jacques L. Vervecken , Daniel M. Timmerman
- Applicant Address: BEX Mortsel
- Assignee: Agfa-Gevaert, N.V.
- Current Assignee: Agfa-Gevaert, N.V.
- Current Assignee Address: BEX Mortsel
- Priority: EPXEP86201641.7 19860923
- Main IPC: G03C1/04
- IPC: G03C1/04 ; G03C1/30
Abstract:
The present invention provides a method of hardening a proteinaceous surface layer of a photographic silver halide element by incorporating a dextran derivative in said proteinaceous surface layer, said dextran derivative being the reaction product of dextran and an epihalohydrin. The invention also provides a photographic element comprising at least one silver halide emulsion layer and at least one proteinaceous surface layer comprising the reaction product of dextran and an epihalohydrin.
Public/Granted literature
- US6003749A Individual camouflage system Public/Granted day:1999-12-21
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