Photographic material with improved properties专利检索-消光剂油漆与涂料专利检索查询-专利查询网

Photographic material with improved properties

阅读：576发布：2023-05-14

专利汇可以提供Photographic material with improved properties专利检索，专利查询，专利分析的服务。并且A photographic material is provided having a layer support backed on both sides with polyolefine and having at least one layer of a light sensitive silver halide gelatine emulsion layer thereon. The rear surface of the support having thereon a water impermeable layer containing a major proportion of a water insoluble binder and minor proportions of an antistatic agent and an inorganic or organic matting agent.，下面是Photographic material with improved properties专利的具体信息内容。

权利要求

2. A photograhic material according to claim 1, characterised in that it contains, as the layer support, paper which has been backed with polyethylene on both sides.

3. A photographic material according to claim 1, characterised in that the binder has the following composition: 9 to 30 percent by weight of ethylene 2 to 12 percent by weight of a half-ester of the dicarboxylic acid 90 to 58 percent by weight of a mixture of vinyl chloride and the vinyl ester, the proportion of thE latter being 15 to 45 percent by weight of this mixture.

4. A photographic material according to claim 1, wherein the matting agent is an insoluble inorganic aluminum compound.

5. A photographic material according to claim 4, wherein the matting agent is aluminum hydroxide or aluminum silicate.

6. A photographic material according to claim 1, wherein the antistatic agent is polystyrene sulphonic acid.

7. A photographic material as defined in claim 1 wherein said half-ester of an Alpha , Beta -unsaturated carboxylic acid is the cyclohexyl half-ester of maleic acid and wherein said vinyl ester of a saturated carboxylic acid is vinyl acetate.

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Photographic material with improved properties

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