Novel dipyrrylmethene dyes
    5.
    发明授权
    Novel dipyrrylmethene dyes 失效
    新型二氢苯乙烯染料

    公开(公告)号:US3691161A

    公开(公告)日:1972-09-12

    申请号:US3691161D

    申请日:1968-04-23

    Applicant: POLAROID CORP

    CPC classification number: C09B23/04

    Abstract: Novel dipyrrylmethene dyes, particularly 5 and/or 5''-odihydroxyphenyl dipyrrylmethene dyes, and 1:1 metal complexes thereof.

    Abstract translation: 新的二吡咯甲烯染料,特别是5和/或5'-邻二羟基苯基二吡咯甲烷染料及其1:1金属络合物。

    Transfer image process utilizing an organic phosphine as silver halide solvent
    9.
    发明授权
    Transfer image process utilizing an organic phosphine as silver halide solvent 失效
    有机磷酸盐作为银盐溶剂的转移图像处理

    公开(公告)号:US3578449A

    公开(公告)日:1971-05-11

    申请号:US3578449D

    申请日:1968-01-22

    Applicant: POLAROID CORP

    Inventor: BLOOM STANLEY M

    CPC classification number: G03C8/365 G03C8/06

    Abstract: ORGANIC DERIVATIVES OF THE TRIHYDRIDES OF TRIVALENT ELEMENTS IN GROUP V-A OF THE PERIODIC TABLE HAVING AN ATOMIC NUMBER GREATER THAN 7 AND LESS THAN 83 ARE USED AS SILVER HALIDE SOLVENTS IN PHOTOGRAPHIC PROCESSING COMPOSITIONS. SPECIFICALLY, ORGANIC PHOSPHINES, ARSINES, STIBINES AND MIXTURES THEREOF ARE USED IN PHOTOGRAPHIC PROCESSING COMPOSITIONS WHICH FIND PARTICULAR UTILITY IN SILVER DIFFUSION TRANSFER TECHNIQUES.

    Photographic processes and products employing benzindole phthaleins as optical filter agents
    10.
    发明授权
    Photographic processes and products employing benzindole phthaleins as optical filter agents 失效
    使用苯并吲哚酞作为光学过滤剂的摄影过程和产品

    公开(公告)号:US3899511A

    公开(公告)日:1975-08-12

    申请号:US39313373

    申请日:1973-08-30

    Applicant: POLAROID CORP

    CPC classification number: G03C8/48

    Abstract: This invention relates to a class of phthalein indicator dyes useful as optical filter agents in photographic processes to protect a selectively exposed photosensitive material from further exposure during processing in the presence of incident light. Such dyes comprise 3,3-disubstituted phthalides and 3,3disubstituted naphthalides wherein the 3,3 substituents are benzindole radicals.

    Abstract translation: 本发明涉及一种在摄影过程中用作光学过滤剂的酞类指示剂染料,以在入射光的存在下保护选择性曝光的感光材料免于进一步曝光。 这样的染料包括3,3-二取代的苯并二苯并呋喃和3,3-二取代的萘,其中3,3个取代基是苯并吲哚基。

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