发明名称 |
DIFFUSION CONTROL LAYERS IN PHOTOGRAPHY |
摘要 |
Photographic diffusion transfer film units including polymeric diffusion control layers are disclosed. The diffusion control layers comprise polymers which are hydrolyzable in an alkaline medium so as to convert a layer comprising one or more of the polymers from a condition of impermeability to alkali or materials soluble in or solubilized by an aqueous alkaline processing composition to a condition of substantial permeability thereto. |
申请公布号 |
AU2776984(A) |
申请公布日期 |
1984.11.15 |
申请号 |
AU19840027769 |
申请日期 |
1984.05.08 |
申请人 |
POLAROID CORP. |
发明人 |
STANLEY J. JASNE;WILLIAM C. SCHWARZEL;CHARLES I. SULLIVAN;LLOYD D. TAYLOR |
分类号 |
G03C8/40;G03C8/54 |
主分类号 |
G03C8/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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