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    Chromogenic 4,4-diaryldihydroquinazolones
    62.
    发明授权
    Chromogenic 4,4-diaryldihydroquinazolones 失效
    显色的4,4-二芳基二氢喹唑啉酮

    公开(公告)号：US4754034A

    公开(公告)日：1988-06-28

    申请号：US789686

    申请日：1985-10-21

    Applicant: Horst Berneth ,  Alfred Brack ,  Karlheinrich Meisel

    Inventor： Horst Berneth ,  Alfred Brack ,  Karlheinrich Meisel

    IPC: B41M5/323 ,  B41M5/136 ,  C07C275/46 ,  C07C275/50 ,  C07C275/54 ,  C07C311/61 ,  C07D239/82 ,  C07D401/06 ,  C07D401/12 ,  C07D403/04 ,  C07D403/06 ,  C07D403/10 ,  C07D413/06 ,  C09B11/00 ,  C09B11/04 ,  C07D239/80

    CPC classification number: C07D401/06 ,  B41M5/136 ,  C07C275/46 ,  C07C275/50 ,  C07C275/54 ,  C07C311/61 ,  C07D239/82 ,  C07D401/12 ,  C07D403/06 ,  C07D403/10 ,  C07D413/06 ,  C09B11/04

    Abstract: 4,4-diaryldihydroquinazolones of the formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3, independently of one another, denote hydrogen, halogen, alkyl, aryl, alkanoylamino, aroylamino, heteryl, NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3, at least one of the radicals X.sup.1, X.sup.2 or X.sup.3 standing for NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,R.sup.1 denotes hydrogen, alkyl, cycloalkyl, aralkyl, aryl or the members of a bridge to the o-carbon of ring C,R.sup.2 denotes a radical of an acid,Y.sup.1, Y.sup.2 and Y.sup.3, independently of one another, denote hydrogen, alkyl, cycloalkyl, aralkyl aryl or heteryl or the remaining members of a 5- or 6-membered ring which reaches to one of the o-position benzene C atoms and may contain further hetero atoms orY.sup.1 +Y.sup.2 denote the remaining members of a 5- or 6-membered ring which may contain further hetero atoms andthe rings A, B and C and the radicals mentioned can in turn carry nonionic substituents customary in dye-stuff chemistry, find utility in pressure-copyable thermoreactive and electrochromic recording materials.

    Abstract translation: 式（I）的4-二芳基二氢喹唑啉酮其中X 1，X 2和X 3彼此独立地表示氢，卤素，烷基，芳基，烷酰基氨基，芳酰氨基，异酰基，NY1Y2，OY3或SY3，至少一个 的基团X 1，X 2或X 3代表NY1Y2，OY3或SY3，R1表示氢，烷基，环烷基，芳烷基，芳基或与环C的邻碳的桥的成员，R2表示酸的基团， Y 1，Y 2和Y 3彼此独立地表示氢，烷基，环烷基，芳烷基芳基或杂芳基或5-位或6-元环的其余成员，其到达位置苯C原子之一并且可以含有 另外的杂原子或Y1 + Y2表示可含有更多杂原子的5或6元环的剩余成员，并且环A，B和C以及所提及的基团可以依次携带染料化学中常规的非离子取代基 ，可用于压力可复制的热反应和电致变色记录材料。

    Pressure-sensitive recording material
    63.
    发明授权
    Pressure-sensitive recording material 失效
    压敏记录材料

    公开(公告)号：US4211436A

    公开(公告)日：1980-07-08

    申请号：US958609

    申请日：1978-11-08

    Applicant: Hans-Peter Kuhlthau ,  Hubertus Psaar ,  Roderich Raue

    Inventor： Hans-Peter Kuhlthau ,  Hubertus Psaar ,  Roderich Raue

    IPC: B41M5/136 ,  B41M5/323 ,  C09B11/00 ,  C09B11/04 ,  C09B11/26 ,  B41M5/16 ,  B41M5/22

    CPC classification number: C09B11/26 ,  B41M5/136 ,  B41M5/323 ,  C09B11/04 ,  B41M5/1366 ,  Y10S428/914

    Abstract: A pressure-sensitive and heat-sensitive recording material contains color-forming agents of the formula ##STR1## wherein R.sub.1 denotes hydrogen or a non-ionic radical which is free from amino groups,R.sub.2 denotes hydroxyl, alkylamino, dialkylamino, acylamino, aralkylamino, arylamino, a saturated heterocyclic radical, alkoxy, alkenyloxy, aralkoxy, cycloalkoxy, aryloxy, acyloxy or a direct bond to R.sub.4,R.sub.3 denotes hydroxyl, alkoxy, aralkoxy, alkenyloxy, cycloalkoxy, aryloxy, alkylthio, arylthio or a radical of the formula ##STR2## wherein R.sub.5 and R.sub.6 independently of one another denote hydrogen, alkyl, aralkyl, cyloalkyl or aryl or, together with the nitrogen atom, form a ring, or R.sub.5 forms a ring with the ring B in the o-position relative to the nitrogen atom, andR.sub.4 denotes an aryl radical which is free from amino groups or a heterocyclic radical.

    Abstract translation: 压敏和热敏记录材料包含下式的成色剂：其中R1表示氢或不含氨基的非离子基，R2表示羟基，烷基氨基，二烷基氨基，酰氨基，芳烷基氨基， 芳基氨基，饱和杂环基，烷氧基，烯氧基，芳烷氧基，环烷氧基，芳氧基，酰氧基或与R4的直接键，R3表示羟基，烷氧基，芳烷氧基，烯氧基，环烷氧基，芳氧基，烷硫基，芳硫基或式 其中R 5和R 6彼此独立地表示氢，烷基，芳烷基，环烷基或芳基，或者与氮原子一起形成环，或者R5与相对于氮原子的o位置的环B形成环 R 4表示不含氨基或杂环基的芳基。

    Trinapthylmethane compounds
    64.
    发明授权
    Trinapthylmethane compounds 失效
    三甲基甲烷化合物

    公开(公告)号：US4036863A

    公开(公告)日：1977-07-19

    申请号：US691889

    申请日：1976-06-01

    Applicant: Eva R. Karger ,  Paul T. MacGregor

    Inventor： Eva R. Karger ,  Paul T. MacGregor

    IPC: C07C65/105 ,  C07C65/11 ,  C07C65/24 ,  C09B11/04 ,  G03C8/48 ,  C07C39/14 ,  C07C39/16

    CPC classification number: C09B11/04 ,  C07C65/105 ,  C07C65/11 ,  C07C65/24 ,  G03C8/48

    Abstract: This invention relates to derivatives of phthalaldehydic and naphthalaldehydic acid useful as intermediates in the preparation of pH-sensitive phthalide and naphthalide indicator dyes.A class of intermediates provided by the present invention comprises compounds of the formula: ##STR1## wherein A represents 4'-hydroxy-1'-naphthyl; B represents 4'-hydroxy-1'-naphthyl or indol-3-yl and C represents a 2-carboxy-1-phenyl radical or an 8-carboxy-1-naphthyl radical and preferably is 8-carboxy-1-naphthyl.

    Abstract translation: 本发明涉及邻苯二醛和萘甲酸的衍生物，其可用作制备pH敏感的苯酞和萘指示剂染料的中间体。

    Naphthalides and phthalides
    65.
    发明授权
    Naphthalides and phthalides 失效
    萘甲酸酯和对苯二甲酸酯

    公开(公告)号：US3833615A

    公开(公告)日：1974-09-03

    申请号：US10386471

    申请日：1971-01-04

    Applicant: POLAROID CORP

    Inventor： SIMON M ,  WALLER D

    IPC: C09B11/04 ,  C09B11/08 ,  C09B11/24 ,  C09B11/26 ,  G03C8/48 ,  C07D7/26

    CPC classification number: G03C8/48 ,  C09B11/04 ,  C09B11/08 ,  C09B11/245 ,  C09B11/26

    Abstract: THIS INVENTION RELATES TO PHENOL PHTHALEIN INDICATOR DYES CONTAINING AS THE RING-CLOSING MOIETY, A NAPHTHALIDE GROUP OR A CARBOXYPHTHALIDE GROUP POSSESSING A CARBOXY SUBSTITUENT IN EITHER THE 4- AND/OR 7-POSITION OF THE PHTHALIDE RING. IN A PREFERRED EMBODIMENT, THE PHENOL RADICALS ARE SUBSTITUTED WITH A HYDROGEN-BONDING GROUP ON A CARBON ATOM ADJACENT TO THE CARBON ATOM CONTAINING THE PHENOLIC -OH. THESE DYES, DUE TO THE NAPHTHALIDE OR CARBOXYPHTHALIDE RING-CLOSING MOIETY EXHIBIT IMPROVED STABILITY IN HIGHLY ALKALINE MEDIA AND WHEN SUBSTITUTED WITH HYDROGEN-BONDING GROUPS AS IN THE THE PREFERRED EMBODIMENT, POSSESS A RELATIVELY HIGH PKA AS WELL.

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