-
公开(公告)号:US4810627A
公开(公告)日:1989-03-07
申请号:US169971
申请日:1988-03-18
申请人: Hans Ohlschlager , Walter Patzold , Helmut Reuss , Karl Steinbeck
发明人: Hans Ohlschlager , Walter Patzold , Helmut Reuss , Karl Steinbeck
IPC分类号: C07D239/22 , C07D239/70 , G03C1/34
CPC分类号: C07D239/22 , C07D239/70 , G03C1/346
摘要: Compounds corresponding to the formula: ##STR1## wherein R.sub.1 and R.sub.2 denote alkyl groups with 1 to 8 carbon atoms, an optionally substituted alkenyl group with 2 to 5 carbon atoms, an optionally substituted cycloalkyl group with 5 or 6 carbon atoms or an optionally substituted aryl group or R.sub.1 and R.sub.2 together represent the ring members required to form a 5- or 6-membered cycloalkyl or cycloalkenyl group, are suitable for use as antifoggants in photographic recording materials.
摘要翻译: 对应于下式的化合物:其中R 1和R 2表示具有1至8个碳原子的烷基,任选取代的具有2至5个碳原子的烯基,任选取代的具有5或6个碳原子的环烷基或任选取代的 芳基或R 1和R 2一起表示形成5-或6-元环烷基或环烯基所需的环成员,适合用作照相记录材料中的防灰雾剂。
-
公开(公告)号:US4990440A
公开(公告)日:1991-02-05
申请号:US389419
申请日:1989-08-04
申请人: Franz Moll , Bruno Mucke , Walter Patzold , Klaus Wagner
发明人: Franz Moll , Bruno Mucke , Walter Patzold , Klaus Wagner
CPC分类号: G03C1/047 , G03C1/09 , G03C2001/0471
摘要: The sensitivity/fog ratio can be improved by using photographic silver halide emulsions containing gelatine which has a cysteine content of less than 10 ppm and a gold number of .gtoreq.23 .mu.mol/g.
摘要翻译: 通过使用含有半胱氨酸含量小于10ppm,金数≥23μmol/ g的明胶的照相卤化银乳剂,可以提高灵敏度/雾度比。
-
公开(公告)号:US4455359A
公开(公告)日:1984-06-19
申请号:US401654
申请日:1982-07-26
CPC分类号: B42D25/47 , B41M3/14 , B42D25/00 , B42D25/42 , B42D25/455 , G03C1/95 , G03C11/08 , B42D2033/04 , B42D2033/14 , B42D2033/30 , B42D2033/32 , B42D2035/02 , B42D2035/06 , B42D2035/08 , B42D2035/26 , B42D25/387 , B42D25/46 , Y10S283/904 , Y10S428/916 , Y10T428/24893
摘要: The tamper-proof document consists of a photographic material as information carrier comprising front- and back gelatine layers, the outer of the gelatine layers of which contain particles of a homo- or copolymer of an acrylic and/or methacrylic acid ester. The information carrier is laminated on one or both sides to a transparent foil by means of a hardenable adhesive. The document is remarkably safe against falsification.
摘要翻译: 防篡改文件由作为信息载体的照相材料组成,包括前和后明胶层,其明胶层的外部含有丙烯酸和/或甲基丙烯酸酯的均聚物或共聚物颗粒。 信息载体通过可硬化粘合剂在一侧或两侧层压到透明箔上。 该文件非常安全,无法伪造。
-
4.
公开(公告)号:US4301242A
公开(公告)日:1981-11-17
申请号:US83229
申请日:1979-10-10
申请人: Walter Patzold , Karl Czernik
发明人: Walter Patzold , Karl Czernik
CPC分类号: G03C1/035 , G03C2001/03564 , G03C2001/0357
摘要: An improved photographic material is provided comprising a mixture of individual emulsions having the same narrow particle size distribution but which are desensitized in a differring degree.
摘要翻译: 提供了一种改进的照相材料,其包含具有相同窄粒度分布但以不同程度脱敏的单独乳液的混合物。
-
公开(公告)号:US5006455A
公开(公告)日:1991-04-09
申请号:US269993
申请日:1988-11-10
申请人: Walter Patzold , Helmut Kampfer
发明人: Walter Patzold , Helmut Kampfer
CPC分类号: G03C1/12 , G03C1/035 , G03C1/346 , G03C2001/03564
摘要: A gradation-variable BW paper comprising only one silver halide emulsion layer, in which re-sensitization is avoided, is obtained with a mixture of at least two photosensitive silver halide emulsions, of which one has its absorption maximum in the range from 480 to 580 while the other has its absorption maximum below 480 nm, providing the emulsion which has its absorption maximum below 480 nm contains a compound corresponding to the following formula ##STR1## in which X represents the remaining members of an optionally benzo- or naphtho-condensed heterocycle optionally containing further substituents.
摘要翻译: 使用至少两种感光卤化银乳剂的混合物获得仅包含一种卤化银乳剂层的等级变化的BW纸,其中避免了再敏化,其中一种吸收最大值在480-580 而另一个的吸收最大值低于480nm,提供其吸收最大值低于480nm的乳液含有对应于下式的化合物:其中X表示任选的苯并或萘并稠合的杂环的剩余成员 任选地含有其它取代基。
-
公开(公告)号:US5229264A
公开(公告)日:1993-07-20
申请号:US887323
申请日:1992-05-22
申请人: Walter Patzold , Bruno Mucke
发明人: Walter Patzold , Bruno Mucke
CPC分类号: G03C1/09
摘要: A quick-developing highly sensitive silver halide emulsion distinguished by steep gradation, a minimal increase in fog during storage, improved threshold gradation and low sensitivity to below-threshold pre-exposure is obtained by the addition of a diindoyl disulfide during preparation of the emulsion.
摘要翻译: 通过在乳液制备过程中加入二苯二甲酰二硫化物可获得快速发展的高灵敏度卤化银乳剂,其特征在于陡峭的分级,储存期间雾的最小增加,阈值梯度的提高以及低于阈值预曝光的低灵敏度。
-
公开(公告)号:US4987063A
公开(公告)日:1991-01-22
申请号:US269564
申请日:1988-11-10
申请人: Helmut Kampfer , Walter Patzold , Gunther Mahlberg
发明人: Helmut Kampfer , Walter Patzold , Gunther Mahlberg
摘要: A gradation variable black-and-white paper containing only one light sensitive silver halide emulsion layer in which transfer of sensitization is prevented may be obtained by sensitization with at least one compound corresponding to the following formula ##STR1## in which at least one of the groups R.sub.1, R.sub.5 or R.sub.6 is halogen.
摘要翻译: 仅通过使至少一种对应于下列化学式的化合物进行致敏即可获得仅含有一种感光性卤化银乳剂层的渐变可变黑白纸,其中, R 1,R 5或R 6中的至少一个是卤素。
-
公开(公告)号:US4210714A
公开(公告)日:1980-07-01
申请号:US886811
申请日:1978-03-15
申请人: Heinrich Odenwalder , Anita von Konig , Franz Moll , Walter Patzold , Lothar Rosenhahn , Friedhelm Sommer
发明人: Heinrich Odenwalder , Anita von Konig , Franz Moll , Walter Patzold , Lothar Rosenhahn , Friedhelm Sommer
摘要: Process for the preparation of silver images by imagewise exposure of a photographic material comprising at least one light-sensitive silver halide emulsion layer and treatment of the material with a developer composition, wherein the improvement comprises the development is carried out in the presence of 3-mercapto-5-(2-furyl)-1,2,4-triazole. The 3-mercapto-5-(2-furyl)-1,2,4-triazole decreases the fog during development, and when this is the first development in a black-and-white or color reversal process, increases the reversal silver or color density.
摘要翻译: 通过用包含至少一种感光卤化银乳剂层的照相材料进行成像曝光并用显影剂组合物处理该材料制备银影像的方法,其中包括显影的改进包括在3- 巯基-5-(2-呋喃基)-1,2,4-三唑。 3-巯基-5-(2-呋喃基)-1,2,4-三唑在显影期间减少雾,当这是黑白或彩色反转过程中的第一次发展时,增加反转银或 颜色密度。
-
-
-
-
-
-
-