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    • 11. 发明授权
    • Heat developable photographic materials
    • 热显影照相材料
    • US4705737A
    • 1987-11-10
    • US767405
    • 1985-08-20
    • Hiroyuki HiraiKozo SatoYoshiharu YabukiKen Kawata
    • Hiroyuki HiraiKozo SatoYoshiharu YabukiKen Kawata
    • G03C1/43G03C1/498G03C8/40G03C5/54G03C1/40
    • G03C8/4086C07C317/00C07C321/00G03C1/43G03C8/4033Y10S430/156
    • A heat developable photographic material comprising a support having thereon at least a photosensitive silver halide, a binder, and at least on of base precursors represented by following formula (I) or (II): ##STR1## wherein R represents an alkyl group, an alkylene group, an aryl group, an arylene group, a monovalent or divalent heterocyclic group, each of which may be unsubstituted or substituted; B represents a mono- or di-acidic, nitrogen-containing, sulfur-free base having a pKa of not lower than about 7 and containing 12 carbon atoms or less; x is an integer of 1 when R represents a monovalent group or an integer of 2 when R represents a divalent group, y is the same as x when B represents the mono-acidic base or an integer of 1 when B represents the di-acidic base; and z is an integer of 2 when R represents a monovalent group and B represents the di-acidic base or otherwise an integer of 1; R' represents an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group or a heterocyclic group, each of which may be substituted or unsubstituted; X represents a substituent; p represents an integer of 0 to 4; and m' represents the valence number of M whereby stability with the passge of time prior to heat development is improved.
    • 一种可显影照相材料,其包含至少一种光敏卤化银,粘合剂和至少一种由下式(I)或(II)表示的基础前体的载体:[R(SO 2 CH 2 COOH)x] z.By( I)其中R表示烷基,亚烷基,芳基,亚芳基,一价或二价杂环基,其各自可以是未取代的或取代的; B表示pKa不低于约7并且含有12个碳原子或更少的单 - 或二 - 酸,含氮,无硫的碱; 当R表示二价基团,当R表示一价基团或整数2时,x为1,当B表示单酸性碱时,y与x相同,当B表示二酸时,x表示1以上的整数 基础; 当R表示一价基团时,z表示2的整数,B表示二酸基,否则为1的整数。 R'表示可以被取代或未取代的烷基,环烷基,烯基,炔基,芳烷基,芳基或杂环基, X表示取代基; p表示0〜4的整数, 并且m'表示M的化合价数,从而提高了在显影之前经过时间的稳定性。
    • 15. 发明授权
    • Heat-developable light-sensitive material
    • US4657848A
    • 1987-04-14
    • US782811
    • 1985-10-02
    • Kozo SatoYoshiharu YabukiHiroyuki HiraiKen Kawata
    • Kozo SatoYoshiharu YabukiHiroyuki HiraiKen Kawata
    • G03C1/06G03C1/498G03C7/00G03C8/40G03C1/02
    • G03C1/49845G03C8/4086Y10S430/156
    • A heat-developable light-sensitive material is described, containing a compound represented by formula (I) ##STR1## wherein R.sub.1 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted cycloalkylene group, a substituted or unsubstituted alkenylene group, a substituted or unsubstituted alkynylene group, a substituted or unsubstituted aralkylene group, a substituted or unsubstituted arylene group, or a substituted or unsubstituted divalent heterocyclic group; R.sub.2 represents a hydrogen atom, a substituted or unsubstituted alkyl group; R.sub.3 represents an alkyl group, an alkoxyl group, a halogen atom, an acylamino group, a sulfonylamino group, an alkylamino group, a dialkylamino group, an alkylsulfonyl group, an arylsulfonyl group, a cyano group, a substituted or unsubstituted carbamoyl group, a substituted or unsubstituted sulfamoyl group or an alkoxycarbonyl group; X represents a divalent group selected from ##STR2## (wherein R.sub.4 represents a hydrogen atom, a substituted or unsubstituted alkyl group), ##STR3## (wherein R.sub.5 represents a substituted or unsubstituted alkyl group), and ##STR4## M represents an alkali metal, an alkaline earth metal, a quaternary ammonium group, or an ammonium group represented by BH (wherein B represents an organic base); l is an integer of 0 to 3; and m and n are each an integer of 1 or 2, such that the electric charge of carboxylate anion is equivalent to that of M.This material is improved in activity and storage stability. That is, the material providing an image of high density and decreased fog, and which even when stored under high temperature/high humidity conditions, maintained good photographic performance.
    • 16. 发明授权
    • Heat-developable light-sensitive material
    • 可热成像的感光材料
    • US4650749A
    • 1987-03-17
    • US769274
    • 1985-08-26
    • Kozo SatoYoshiharu YabukiHiroyuki HiraiKen Kawata
    • Kozo SatoYoshiharu YabukiHiroyuki HiraiKen Kawata
    • G03C8/40B41M5/26C07C51/00C07C59/58C07C59/64C07C59/66C07C67/00C07C239/00C07C279/02C07C301/00C07C311/03C07D207/22C07D231/12C07D231/56C07D233/60C07D235/06C07D235/22C07D249/18C07D257/04C07D317/30C07D317/46C07D521/00G03C1/06G03C1/498G03C7/00G03C1/02
    • G03C1/49845Y10S430/156
    • A heat developable light-sensitive material containing a compound represented by formula (I) or (II) ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group, a heterocyclic group, a carboxyl group or a salt thereof, a halogen atom, a cyano group, an alkylsulfonyl or arylsulfonyl group, a sulfamoyl group, a carbamoyl group, an alkoxycarbonyl or aryloxycarbonyl group, a di- or mono-alkylphosphoryl or arylphosphoryl group, a di- or mono-alkylphosphinyl or arylphosphinyl group, an alkylsulfinyl or arylsulfinyl group, an acyl group, an amino group, an acylamino group, an acyloxy group or a group represented by X; X represents a decarboxylation accelerating group; or any two of R.sub.1, R.sub.2, and X may combine to form a ring; and the groups represented by R.sub.1, R.sub.2 and X may further be substituted with a substituent; B represents an organic base; and n represents 1 when B represents a monoacid base or 2 when B represents a diacid base, provided that when ##STR2## is a free dibasic acid, n is 1/2 of the above described numbers, respectively.The heat developable light-sensitive material containing a base precursor represented by formula (I) or (II) has excellent stability during preservation before use, and provides a color image having a high color density and low fog in a short time.
    • 含有式(I)或(II)表示的化合物的热显影性感光材料其中R 1和R 2各自表示氢原子,烷基,环烷基, 烯基,炔基,芳烷基,芳基,杂环基,羧基或其盐,卤素原子,氰基,烷基磺酰基或芳基磺酰基,氨磺酰基,氨基甲酰基, 烷氧基羰基或芳氧基羰基,二 - 或单烷基磷酰基或芳基磷酰基,二 - 或单烷基氧膦基或芳基氧膦基,烷基亚磺酰基或芳基亚磺酰基,酰基,氨基,酰氨基,酰氧基或 由X代表的组; X表示脱羧加成基团; 或者R1,R2和X中的任何两个可以结合形成环; 并且由R 1,R 2和X表示的基团可以进一步被取代基取代; B表示有机碱; 当B代表一酸基时,n表示1,B表示二酸基时,n表示1,条件是当为游离二元酸时,n分别为上述数字的1/2。 含有由式(I)或(II)表示的碱前体的可热显影的感光材料在使用前的保存期间具有优异的稳定性,并且在短时间内提供具有高着色密度和低雾度的彩色图像。
    • 18. 发明授权
    • Heat developable light-sensitive material
    • 热可显影的感光材料
    • US4640891A
    • 1987-02-03
    • US768655
    • 1985-08-23
    • Yoshiharu YabukiKozo SatoKen KawataHiroyuki Hirai
    • Yoshiharu YabukiKozo SatoKen KawataHiroyuki Hirai
    • G03C1/06G03C1/498G03C7/00G03C8/40G03C5/24
    • G03C8/4086G03C1/49845G03C8/4033Y10S430/156
    • A heat developable light-sensitive material having an excellent stability with time and capable of providing a high quality image is disclosed, which contains a base precursor represented by the following general formula (I): ##STR1## wherein A represents an organic residue represented by the following formula (II): ##STR2## X represents an electron attractive substituent having a Hammett's sigma value of more than 0;l represents an integer of 1 to 5 and, when l represents 2 or more, a plurality of Xs may be the same or different;Y represents a substituent having a Hammett's sigma value of 0 or less;k represents an integer of 0 to 5 and, when k represents 2 or more, a plurality of Ys may be the same or different;Z represents a divalent organic residue selected from the group consisting of --C.dbd.C--, --O--, --S--, and --NR-- (wherein R represents a hydrogen atom or a substituent selected from the group consisting of an alkyl group, an alkenyl group, an aralkyl group, an aryl group, and an acyl group);the broken line in the general formula (II) represents that the cyclic compound containing Z may optionally be fused with a benzene ring;B represents a mono- or diacidic base having a pKa value of 7 or more and containing 12 or less carbon atoms; andn and m represent an integer of 1 or 2 and are in such relation that the number of positive charge is equal to that of negative charge.
    • 公开了一种具有优异的时间稳定性和能够提供高质量图像的可热显影的感光材料,其包含由以下通式(I)表示的碱前体:其中A表示有机物 由下式(II)表示的残基:X表示哈米特σ值大于0的吸电子取代基; l表示1〜5的整数,当l表示2以上时,多个X可以相同或不同, Y表示哈米特σ值为0以下的取代基; k表示0〜5的整数,当k表示2以上时,多个Y可以相同或不同, Z表示选自-C = C,-O-,-S-和-NR-的二价有机残基(其中R表示氢原子或选自烷基, 烯基,芳烷基,芳基和酰基); 通式(II)中的虚线表示含有Z的环状化合物可任意地与苯环稠合; B表示pKa值为7以上且含有12个以下碳原子的单或二酸碱基; 并且n和m表示1或2的整数,并且与正电荷的数量等于负电荷的数量相关联。