公开(公告)号：US3870521A

公开(公告)日：1975-03-11

申请号：US31548572

申请日：1972-12-15

Applicant: GAF CORP

Inventor： MACKEY E SCUDDER ,  PECHMANN KARL ,  TRITTEN DONALD E

IPC: G03C1/76

CPC classification number: G03C1/7614 ,  Y10S430/162

Abstract: Photographic elements having antiblocking and antiferrotyping properties as well as improved slippage, are provided by employing in at least one outer layer, an improved protective overcoat composition containing gelatin and certain polysaccharide derivatives of substituted dicarboxylic acids, for example the octenyl succinate ester of starch.

Abstract translation: 通过在至少一个外层中使用含有明胶和取代的二羧酸的某些多糖衍生物的改进的保护性外涂层组合物，例如淀粉的辛烯基琥珀酸酯来提供具有防粘连和抗铁性质特征以及改进的滑移性的照相元件。