发明名称 |
DIFFUSION TRANSFER FILM UNIT |
摘要 |
There is described a novel diffusion transfer film unit for use in a diffusion transfer photographic system which includes a layer comprising a polyester urethane polymer(s) which is inert to alkali, and specifically, a layer which exhibits permeability to alkali inversely dependent upon temperature. Diffusion transfer photographic systems utilizing the diffusion transfer film unit of the present invention exhibit superior hot temperature processing.
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申请公布号 |
CA2226836(A1) |
申请公布日期 |
1997.11.20 |
申请号 |
CA19972226836 |
申请日期 |
1997.05.14 |
申请人 |
POLAROID CORPORATION |
发明人 |
LINDHOLM, EDWARD P.;MANNING, JAMES J. |
分类号 |
G03C8/26;G03C8/52;G03C8/54;(IPC1-7):G03C8/26 |
主分类号 |
G03C8/26 |
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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