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    Polyborane photoinitiators and borate photoinitiators from polyboranes
    1.
    发明授权
    Polyborane photoinitiators and borate photoinitiators from polyboranes 失效
    来自聚硼烷的硼酸盐光引发剂

    公开(公告)号：US6057078A

    公开(公告)日：2000-05-02

    申请号：US121582

    申请日：1998-07-23

    申请人： Allan Francis Cunningham ,  Martin Kunz ,  Hisatoshi Kura

    发明人： Allan Francis Cunningham ,  Martin Kunz ,  Hisatoshi Kura

    IPC分类号： C07F5/02 ,  C07F7/08 ,  C07F7/10 ,  C07F9/50 ,  C07F17/02 ,  C08F2/48 ,  C08F2/50 ,  C08F4/06 ,  C08F4/12 ,  G03C1/22 ,  G03F7/029 ,  C08F4/52 ,  G03C1/72 ,  G03C9/08 ,  G03F7/028

    CPC分类号： G03F7/029 ,  C07F17/02 ,  C07F5/027 ,  C08F2/50 ,  G03C1/22

    摘要： Compounds of the formula I ##STR1## in which n and o are a number from 0 to 50, m is a number from 1 to 50, u and v are 0 or 1, and at least one of the indices u and v is 1, R.sub.1, R.sub.2, R.sub.2a, R.sub.3 and R.sub.4 independently of one another are, for example, aromatic hydrocarbons, R.sub.5, if n and o are 0, is for example C.sub.1 -C.sub.12 alkyl and, if n and/or o are greater than 0, or if n and o are 0 and at the same time only one index u or v is 1, R.sub.5 may additionally, for example, be an aromatic hydrocarbon, at least one of the radicals R.sub.1, R.sub.2, R.sub.2a, R.sub.3, R.sub.4 and R.sub.5 being an aromatic hydrocarbon radical which is sterically hindered ortho to the boron atom, X is, for example, C.sub.1 -C.sub.20 alkylene, phenylene, biphenylene, etc., and Z is a radical which is able to form positive ions, are suitable as photoinitiators, both the compounds per se and their combination with dyes or other electron acceptors. Furthermore, the polyborane precursors of these borates possess, together with borate salts, photoinitiating properties.

    摘要翻译： 其中n和o为0至50的数字的式I化合物，m为1至50的数，u和v为0或1，并且指数u和v中的至少一个为1，R 1， R 2，R 2a，R 3和R 4彼此独立地是例如芳族烃，如果n和o是0，R 5，如C 1 -C 12烷基，如果n和/或o大于0，或者如果n 和o为0，同时只有一个指数u或v为1，R5另外可以为芳香烃，基团R 1，R 2，R 2a，R 3，R 4和R 5中的至少一个为芳族 与硼原子相邻位阻的烃基，X是例如C 1 -C 20亚烷基，亚苯基，亚联苯基等，Z是能够形成正离子的基团，适合作为光引发剂，这两种化合物 本身及其与染料或其他电子受体的组合。 此外，这些硼酸盐的多硼酸盐前体与硼酸盐一起具有光引发性质。

    Silver halide photographic material
    2.
    发明授权
    Silver halide photographic material 失效
    卤化银照相材料

    公开(公告)号：US5976779A

    公开(公告)日：1999-11-02

    申请号：US971124

    申请日：1997-11-20

    申请人： Takanori Hioki

    发明人： Takanori Hioki

    IPC分类号： G03C7/00 ,  G03C1/00 ,  G03C1/08 ,  G03C1/10 ,  G03C1/12 ,  G03C1/14 ,  G03C1/22 ,  G03C1/34

    CPC分类号： G03C1/12 ,  G03C1/34 ,  G03C1/10

    摘要： A silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer, wherein silver halide grains of said emulsion layer are reduction sensitized and contain at least one compound represented by the following formula (I): ##STR1## wherein A represents a divalent linking group having at least one atom other than a carbon atom; Z.sub.1 represents an atomic group necessary for forming a 5- or 6-membered nitrogen-containing heterocyclic ring; L.sub.1 and L.sub.2 each represents a methine group; p.sub.1 represents 0 or 1; M.sub.1 represents a counter ion for balancing a charge; m.sub.1 represents a number of from 0 to 10 necessary for neutralizing a charge in the molecule; and Q represents a group necessary to form a methine dye.

    摘要翻译： 一种卤化银照相材料，包括其上提供有至少一个卤化银乳剂层的载体，其中所述乳剂层的卤化银颗粒是还原致敏的并且含有至少一种由下式（I）表示的化合物：其中A表示二价 具有至少一个碳原子以外的原子的连接基团; Z1表示形成5或6元含氮杂环所必需的原子团; L1和L2各自表示次甲基; p1表示0或1; M1表示用于平衡电荷的抗衡离子; m1表示中和分子中的电荷所需的0〜10个数; Q表示形成次甲基染料所需的基团。

    Process for the preparation of novel stabilized phosphorus ylides
    4.
    发明授权
    Process for the preparation of novel stabilized phosphorus ylides 失效
    制备新型稳定化磷内鎓盐的方法

    公开(公告)号：US5856558A

    公开(公告)日：1999-01-05

    申请号：US912799

    申请日：1997-08-18

    申请人： Sergej Pasenok ,  Wolfgang Appel

    发明人： Sergej Pasenok ,  Wolfgang Appel

    IPC分类号： G03C1/18 ,  C07F9/535 ,  C07F9/54 ,  C07F9/60 ,  C07F9/6506 ,  C07F9/6541 ,  C07F9/655 ,  C09B23/00 ,  G03C1/10 ,  G03C1/22 ,  C07B37/10 ,  C07F9/547 ,  C09B47/00

    CPC分类号： C07F9/60 ,  C07F9/5352 ,  G03C1/10

    摘要： The present invention relates to novel stabilized phosphorous ylides and processes for their preparation. More particularly, the present invention relates to a process for substituting the carbonyl oxygen of 2-formyl- or 2-oxoalkylidenetriphenyl-phosphoranes (OATP) by other stabilizing groups to form novel compounds having an increased tendency to form complexes or compounds which absorb in the visible region of the spectrum.The compounds according to the present invention areCompounds of the formula (1)Ph.sub.3 .dbd.CH--C(R).dbd.Nu (1)wherein R is hydrogen, a C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.3 -fluoroalkyl or perfluoroalkyl radical, an unfluorinated or fluorinated C.sub.6 -C.sub.14 -aryl radical or a group OCH.sub.3 ; andNu is S, Se, C(CN).sub.2, NH, PhN, PhNHN, ##STR1## or a radical of the formulae (a), (b), (c), (d) or (e) ##STR2## wherein Z is C(CH.sub.3).sub.2, S or N(CH.sub.3) and n=1 or 2 (provided that the combinations R.dbd.Ar, SAlk or OAlk and Nu.dbd.NPh, and the combinations R.dbd.H, Alk or aryl and Nu.dbd.S are excluded) are disclosed, as well as methods for making them.

    摘要翻译： 本发明涉及新的稳定磷叶内鎓及其制备方法。 更具体地说，本发明涉及用其它稳定基团取代2-甲酰基或2-氧代亚烷基三亚膦基（OATP）的羰基氧的方法，形成具有增加倾向于形成复合物或化合物的化合物的新型化合物 可见光谱区域。 根据本发明的化合物是式（1）的化合物，Ph 3 = CH-C（R）= Nu（1）其中R是氢，C 1 -C 5 - 烷基，C 1 -C 3 - 氟烷基或全氟烷基， 未氟化或氟化的C 6 -C 14 - 芳基或基团OCH 3; 和Nu是S，Se，C（CN）2，NH，PhN，PhNHN，IMA或者式（a），（b），（c），（d）或（e） （a）（b）（c）（d）和n = 1或2（条件是组合R = Ar，SAlk或OAlk和Nu = NPh，组合R = H ，Alk或芳基和Nu = S被排除），以及制备它们的方法。

    Silver halide photographic photosensitive material
    6.
    发明授权
    Silver halide photographic photosensitive material 失效
    卤化银照相感光材料

    公开(公告)号：US5624792A

    公开(公告)日：1997-04-29

    申请号：US584279

    申请日：1996-01-11

    申请人： Hiroshi Nishinoiri ,  Masao Okushima

    发明人： Hiroshi Nishinoiri ,  Masao Okushima

    IPC分类号： G03C5/08 ,  G03C1/12 ,  G03C1/14 ,  G03C1/16 ,  G03C1/18 ,  G03C1/22 ,  G03C1/29 ,  G03C5/02 ,  G03C7/30 ,  G03C5/26

    CPC分类号： G03C5/02 ,  G03C1/29 ,  G03C7/3041 ,  G03C1/12 ,  G03C1/16 ,  G03C1/18 ,  G03C1/22

    摘要： The present invention provides a silver halide photographic photosensitive material which has a printability from color negatives and which can be used as a variable contrast printing paper. This silver halide photographic photosensitive material comprises a support and at least one silver halide emulsion layer provided on the support wherein when .gamma. (gamma) values of characteristic curves obtained by exposure through filters having a transmission maximum wavelength at about 430 nm, about 540 nm and about 700 nm are indicated by .gamma..sub.B, .gamma..sub.G and .gamma..sub.R, respectively, the following inequalities 0.3

    摘要翻译： 本发明提供一种卤化银照相感光材料，其具有来自彩色底片的可印刷性，并可用作可变造影纸。 该卤化银照相感光材料包括载体和至少一个设置在载体上的卤化银乳剂层，其中当通过在约430nm，约540nm处具有透射最大波长的滤光片曝光而获得的特性曲线的伽马（gamma） 约700nm分别由γB，γG和γR表示，满足以下不等式0.3 <γG/γB<0.7和0.3 <γG/γR<1.0。 此外，还提供了曝光方法。

    Method for the preparation of tabular emulsion grains rich in chloride
    9.
    发明授权
    Method for the preparation of tabular emulsion grains rich in chloride 失效

    公开(公告)号：US5286621A

    公开(公告)日：1994-02-15

    申请号：US935300

    申请日：1992-08-26

    申请人： Ann L. Verbeeck

    发明人： Ann L. Verbeeck

    IPC分类号： G03C1/015 ,  G03C1/005 ,  G03C1/035 ,  G03C1/07 ,  G03C1/18 ,  G03C1/22 ,  G03C10/07

    CPC分类号： G03C1/0053 ,  G03C1/07 ,  G03C1/015 ,  G03C1/12 ,  G03C1/18 ,  G03C1/22 ,  G03C2001/0155 ,  G03C2001/0156 ,  G03C2001/0157 ,  G03C2200/03 ,  G03C2200/43 ,  G03C2200/44

    摘要： A method is disclosed for the preparation of silver halide tabular emulsion grains, containing at least 75% chloride, wherein at least 50% of the total projected area of all the grains is provided by said tabular grains, and wherein said tabular grains exhibit an average aspect ratio of at least 5:1, an average thickness not greater than 0.5 micron and an average diameter of at least 0.6 micron, by a process comprising the following steps:(1) preparing a dispersion medium containing a gelatino-peptizer, and performing the precipitation of the silver halide grains under the following conditions:(a) the chloride ion concentration in the dispersion medium is lower than 0.15 molar at the start of the precipitation and remains lower than 0.15 molar during the whole precipitation, and pH is maintained between 5.0 and 9.0;(b) the precipitation is performed in the presence of a crystal habit modifyer according to general formula Ia or Ib: ##STR1## wherein Z represents the atoms necessary to form a fused on aromatic carbocyclic or heterocyclic, unsubstituted or substituted ring, e.g. substituted with alkyl, alkenyl, aryl, alkoxy, hydroxy, mercapto, carboxy, amino or halogen, andR is hydrogen or a substituent as defined for ring Z; n is 1 or 0, andQ represents carbon in which case n=1, or Q represents nitrogen, in which latter case n=0.This crystal habit modifier can be added a several different stages of the precipitation. It can be added as a whole in one portion or in several fractions. Preferably this crystal habit modifier is an adenine derivative and most preferably it is adenine itself.(2) adding to the dispersion medium, during and/or after completion of the precipitation, an amount of a spectral sensitizing dye preferably ranging from 10.sup.-5 mole to 5.10.sup.-3 mole per mole of silver halide at a pH lower than 4.0; in this way adsorbed crystal habit modifier is totally or almost totally desorbed from the tabular emulsion grains;(3) removing excessive inorganic salts by a procedure starting at a pH lower than 4.0, e.g. ultrafiltration, or flocculation by a polymeric agent or an inorganic salt followed by several washings and redispersion.