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21. 发明授权

US6153363A Protective overcoat comprising interpenetrating network for photographic elements 失效
标题翻译：保护性外衣包括用于照相元件的互穿网络
公开(公告)号：US6153363A
公开(公告)日：2000-11-28
申请号：US447409
申请日：1999-11-23
申请人： Mridula Nair , Tamara K. Jones , Lloyd A. Lobo , Brian A. Schell
发明人： Mridula Nair , Tamara K. Jones , Lloyd A. Lobo , Brian A. Schell
IPC分类号： G03C1/76 , G03C1/775 , G03C1/79 , G03C1/795 , G03C11/08 , G03C1/815 , G03C1/89
CPC分类号： G03C1/7614 , G03C1/76 , G03C1/775 , G03C1/79 , G03C1/795 , G03C11/08 , Y10S430/162
摘要： The present invention is a photographic element which includes a support, at least one silver-halide emulsion layer superposed on the support and a processing-solution-permeable protective overcoat overlying the silver halide emulsion layer. The processing-solution-permeable overcoat is composed of a polyurethane-containing component having acid functionalities wherein the polyurethane-containing component is an interpenetrating network further comprising at least two polymers, including at least one vinyl polymer and at least one urethane polymer. Suitably, a water-soluble polymer is also present in the overcoat. The present invention is also directed to a method of making a photographic print involving developing the photographic element in an alkaline developer solution.
摘要翻译：本发明是一种照相材料，它包括一个载体，至少一个叠加在载体上的卤化银乳剂层和覆盖在卤化银乳剂层上的加工溶液可渗透的保护外涂层。处理溶液可渗透的外涂层由具有酸官能团的含聚氨酯的组分组成，其中含聚氨酯的组分是互穿网络，其还包含至少两种聚合物，包括至少一种乙烯基聚合物和至少一种聚氨酯聚合物。适当地，外涂层中也存在水溶性聚合物。本发明还涉及一种制造涉及在碱性显影剂溶液中显影照相元件的照相印刷品的方法。

22. 发明授权

US06077648A Protective overcoat for photographic elements 失效
标题翻译：摄影元素保护罩
公开(公告)号：US06077648A
公开(公告)日：2000-06-20
申请号：US235436
申请日：1999-01-22
申请人： Mridula Nair , Tamara K. Jones , Lloyd A. Lobo , Brian A. Schell
发明人： Mridula Nair , Tamara K. Jones , Lloyd A. Lobo , Brian A. Schell
IPC分类号： G03C1/76 , G03C1/775 , G03C1/79 , G03C1/795 , G03C11/08 , G03C5/29 , G03C11/06
CPC分类号： G03C1/7614 , G03C1/76 , G03C1/775 , G03C1/79 , G03C1/795 , G03C11/08 , Y10S430/162
摘要： The present invention is a photographic element which includes a support, at least one silver halide emulsion layer superposed on the support and a processing solution permeable protective overcoat overlying the silver halide emulsion layer. The processing solution permeable overcoat is composed of a urethane-vinyl copolymer having acid functionalities wherein a weight ratio of the urethane in the copolymer comprises from 20 to 100 percent and a weight ratio of the vinyl in the copolymer comprises from 0 to 80 percent. The present invention is a method of making a photographic element which includes providing an photographic element having a support, a silver halide emulsion layer superposed on the support and a processing solution permeable protective overcoat overlying the silver halide emulsion layer. The processing solution permeable overcoat is composed of a urethane-vinyl copolymer having acid functionalities wherein a weight ratio of the urethane in the polymer comprises from 20 to 100 percent and a weight ratio of the vinyl in the polymer comprises from 0 to 80 percent. The photographic element is developed in a developer solution having a pH greater than 7 and the processing solution permeable overcoat is fused.
摘要翻译：本发明是一种照相元件，它包括一个载体，至少一个叠加在载体上的卤化银乳剂层和覆盖在卤化银乳剂层上的处理溶液可渗透的保护外涂层。加工溶液可渗透的外涂层由具有酸性官能团的氨基甲酸酯 - 乙烯基共聚物组成，其中共聚物中的氨基甲酸酯的重量比为20-100％，共聚物中乙烯基的重量比为0-80％。本发明是一种制造照相元件的方法，该方法包括提供具有载体的照相元件，叠置在载体上的卤化银乳剂层和覆盖在卤化银乳剂层上的处理溶液可渗透保护外涂层。处理液可渗透外涂层由具有酸性官能团的聚氨酯 - 乙烯基共聚物组成，其中聚氨酯的重量比为20-100％，聚合物中乙烯基的重量比为0-80％。照相元件在pH大于7的显影剂溶液中显影，并且处理液可渗透的外涂层被熔合。

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