发明名称 Diffusion transfer products with two timing layers for production of transparencies
摘要 Image-receiving elements and photographic diffusion transfer products providing diffusion transfer transparency images are described. The image-receiving elements include a transparent support carrying, in sequence, an acid-reacting reagent; a first polymeric timing layer possessing decreasing alkaline solution permeability with increasing temperature; a second timing layer comprising cellulose acetate; and an alkaline solution-permeable and dyeable polymeric image-receiving layer comprising a graft polymer having a polymeric backbone and grafted thereto moieties which provide mordant capability. The utilization in the image-receiving elements of the aforedescribed first and second timing layers permits the provision of elements which can be effectively processed over a range of processing temperatures and which are adapted to the provision of transparencies which exhibit desired images without the distracting or otherwise objectionable image defects associated with reticulation.
申请公布号 US4359517(A) 申请公布日期 1982.11.16
申请号 US19810259102 申请日期 1981.04.30
申请人 POLAROID CORPORATION 发明人 BOURGEOIS, GERARD J.
分类号 G03C8/54;G03C8/52;G03C8/56;(IPC1-7):G03C1/40;G03C5/54 主分类号 G03C8/54
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