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    • 2. 发明授权
    • Heat developable photosensitive material
    • 热显影感光材料
    • US4639418A
    • 1987-01-27
    • US768282
    • 1985-08-22
    • Yoshiharu YabukiKozo SatoKen KawataHiroyuki Hirai
    • Yoshiharu YabukiKozo SatoKen KawataHiroyuki Hirai
    • G03C8/40C07C279/04C07F9/40C07F9/53G03C1/06G03C1/498G03C7/00G03C1/02
    • G03C1/49845C07C279/04C07F9/4006C07F9/5304Y10S430/156
    • A heat developable photosensitive material comprising a support having thereon at least one light-sensitive layer comprising light-sensitive silver halide and a binder, wherein at least one layer contains a base precursor represented by the following general formula (I): ##STR1## wherein at least one of X, Y and Z, which may be the same or different, represents an electron-attractive substituent selected from the group (a) consisting of a halogen atom, a nitro group, an alkysulfinyl group, an arylsulfinyl group, an acyl group, a sulfamoyl group, a sulfamoyl group substituted with an aryl group, a substituted aryl group, an alkyl group or a substituted alkyl group, a carbamoyl group, a substituted carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an aryloxysulfonyl groups ##STR2## a nitroso group, ##STR3## wherein B is defined as in general formula (I), and R, R.sup.1 and R.sup.2 each represents a hydrogen atom, an alkyl group or an aryl group, and the alkyl or aryl moiety of these groups may be further substituted;the remainder of X, Y and Z being selected from the group (b) consisting of a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, a silyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group and a hydroxy group, wherein the alkyl and aryl moieties may be further substituted with a substituent other than a perhaloalkyl group containing up to 3 carbon atoms,provided that at least one of X, Y and Z represents a group other than a halogen or a nitro group, and any two of X, Y and Z may combine to form a ring;B represents a mono-acidic or di-acidic base having a pKa value of at least 7 and containing not more than 12 carbon atoms; andn and m each represents 1 or 2, provided that the net charge of the compound is zero.
    • 一种可显影的感光材料,包括其上具有至少一个包含感光卤化银和粘合剂的感光层的载体,其中至少一层含有由以下通式(I)表示的碱前体: I),其中X,Y和Z中的至少一个可以相同或不同,表示选自由卤素原子,硝基,烷基亚磺酰基,芳基亚硫酰基组成的组(a)中的吸电子取代基 基团,酰基,氨磺酰基,被芳基取代的氨磺酰基,取代的芳基,烷基或取代的烷基,氨基甲酰基,取代的氨基甲酰基,烷氧基羰基,芳氧基羰基, 芳氧基磺酰基“亚硝基”,其中B如通式(I)所定义,R 1,R 2和R 2各自表示氢原子,烷基或芳基,烷基或芳基 t的部分 集团可以进一步被替代; X,Y和Z的其余部分选自氢原子,烷基,环烷基,烯基,炔基,芳基,芳烷基,甲硅烷基, 烷氧基,芳氧基,烷硫基,芳硫基和羟基,其中烷基和芳基部分可以被除了含有至多3个碳原子的全卤代烷基以外的取代基进一步取代,条件是至少一个 X,Y和Z表示除卤素或硝基以外的基团,X,Y,Z中的任意2个可以结合形成环; B表示pKa值至少为7且含有不多于12个碳原子的单酸性或二酸性碱; 并且n和m各自表示1或2,条件是化合物的净电荷为零。
    • 3. 发明授权
    • Heat developable light-sensitive material
    • 热可显影的感光材料
    • US4731321A
    • 1988-03-15
    • US942042
    • 1986-12-16
    • Kozo SatoYoshiharu YabukiHiroyuki HiraiKen Kawata
    • Kozo SatoYoshiharu YabukiHiroyuki HiraiKen Kawata
    • G03C1/06G03C1/498G03C7/00G03C8/40
    • G03C8/4086G03C1/49845G03C8/40G03C8/4033Y10S430/156
    • A heat developable light-sensitive material comprising a support having thereon at least one light-sensitive layer wherein at least one layer comprises a compound represented by the following general formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, 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 each of which may be substituted or unsubstituted; a carboxy group or a salt thereof; R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, a heterocyclic group, a sulfamoyl group, a carbamoyl group, an acyl group, an alkoxy group, an aryloxy group, an amino group, an acylamino group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group each of which may be substituted or unsubstituted; a phosphoryl group, a phosphinyl group, a thio group, a sulfinyl group or a sulfonylamino group, each of which is substituted with a substituted or unsubstituted alkyl group or aryl group; a cyano group, a hydroxy group, a carboxy group or a salt thereof; X.sub.0 represents a group capable of accelerating decarboxylation; B.sub.0 represents an organic base; and n.sub.0 represents 1 when B.sub.0 represents a monoacidic base or 2 when B.sub.0 represents a diacidic base.The heat developable light-sensitive material containing a base precursor represented by the general formula (I) has excellent stability during preservation and provides a color image having a high color density and low fog in a short development time.
    • 一种可热显影的感光材料,其包括其上具有至少一个光敏层的载体,其中至少一层包含由以下通式(I)表示的化合物:其中R 1和R 2可以 各自表示氢原子,烷基,环烷基,烯基,炔基,芳烷基,芳基,各自可以是取代或未取代的杂环基; 羧基或其盐; R 3和R 4可以相同或不同,各自表示氢原子,卤素原子,烷基,环烷基,烯基,炔基,芳基,芳烷基,杂环基, 氨磺酰基,氨基甲酰基,酰基,烷氧基,芳氧基,氨基,酰氨基,烷氧基羰基,芳氧基羰基,各自可以是取代或未取代的酰氧基; 磷酰基,氧膦基,硫基,亚磺酰基或磺酰基氨基,其各自被取代或未取代的烷基或芳基取代; 氰基,羟基,羧基或其盐; X0表示能够加速脱羧的基团。 B0表示有机碱; 当B0表示一酸基时,n0表示1,当B0表示二酸基时,n0表示2。 含有由通式(I)表示的碱前体的可显影热敏材料在保存期间具有优异的稳定性,并且在短的显影时间内提供具有高着色密度和低雾度的彩色图像。
    • 4. 发明授权
    • Heat developable light-sensitive material
    • 热可显影的感光材料
    • US4668615A
    • 1987-05-26
    • US767981
    • 1985-08-21
    • Ken KawataYoshiharu YabukiKozo SatoHiroyuki Hirai
    • Ken KawataYoshiharu YabukiKozo SatoHiroyuki Hirai
    • G03C8/40C07C51/00C07C57/30C07C61/39C07C62/32C07C67/00C07C201/00C07C205/56C07C239/00C07C279/02C07C313/00C07C317/44C07D213/55C07D215/12C07D215/14C07D263/56G03C1/06G03C1/498G03C7/00G03C1/40G03C5/54
    • C07C61/39C07C205/56C07C57/30C07C62/32G03C1/49845Y10S430/156
    • A heat developable light-sensitive material containing a compound represented by the general formula (I):[Ar.sub.n (R).sub.3-n CCO.sub.2 H].sub.l .multidot.B.sub.m (I)wherein ar represents an aryl group or a heterocyclic group; R represents a substituent other than an aryl group and a heterocyclic group; Ar and R may be bonded in a part thereof to form a ring; B represents a mono- or diacidic base which has a pKa of 7 or more and contains 12 or less carbon atoms; n represents an integer from 1 to 3; l and m each represents an integer of 1 or 2 and maintain a relationship in that a number of positive charge and a number of negative charge are equal; when n represents 1 or 2, two R's or Ar's may be the same or different, when n represents 3, three Ar's may be the same or different; and the substituent represented by Ar or R may be further substituted with a substituent. The compound represented by the general formula (I) is a base precursor which is stable at normal temperature but rapidly decomposes to release a base by heating and therefore the heat developable light-sensitive material containing the base precursor has excellent preservability and provides images having good image quality, i.e., low fog density and high image density upon a short period of developing time.
    • 含有通式(I)表示的化合物的热显影性感光材料:[Arn(R)3-nCCO2H] lxBm(I)其中ar表示芳基或杂环基; R表示除芳基和杂环基以外的取代基; Ar和R可以部分结合形成环; B表示pKa为7以上且含有12个以下碳原子的单或二酸碱基; n表示1〜3的整数, l和m各自表示1或2的整数,并且保持正电荷数和负电荷数相等的关系; 当n表示1或2时,两个R或Ar可以相同或不同,当n表示3时,三个Ar可以相同或不同; 并且由Ar或R表示的取代基可以进一步被取代基取代。 由通式(I)表示的化合物是在常温下稳定但快速分解以通过加热而释放碱的基础前体,因此含有碱性前体的可热显影的感光材料具有优异的保存性并提供具有良好的图像 图像质量,即在较短的显影时间内的低雾密度和高图像密度。
    • 7. 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。
    • 10. 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.