公开(公告)号：US4131470A

公开(公告)日：1978-12-26

申请号：US753145

申请日：1976-12-21

Applicant: Gunther Fischer ,  Beate Wenzel ,  Steffen Scheithauer ,  Udo Franz ,  Karl-Wilhelm Junge ,  Christof Schroter ,  Siegfried Gahler ,  Johannes Morgenstern

Inventor： Gunther Fischer ,  Beate Wenzel ,  Steffen Scheithauer ,  Udo Franz ,  Karl-Wilhelm Junge ,  Christof Schroter ,  Siegfried Gahler ,  Johannes Morgenstern

IPC: G03C1/34 ,  G03C1/28

CPC classification number: G03C1/346

Abstract: A process for the stabilization of and the prevention or substantial reduction of fogging in the use of photographic silver halide emulsions, characterized in that compounds selected from the group consisting of those represented by the general formulas I, II, and III: ##STR1## are added to the emulsion, before or during chemical sensitization and before coating of the emulsions onto a support therefor, wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as herein described.

Abstract translation: 一种在使用照相卤化银乳剂中稳定并防止或显着降低起雾的方法，其特征在于选自由通式I，II和III表示的那些化合物：为化合物的化合物为 在化学增感之前或期间，并且在将乳剂涂覆到其载体上之前添加到乳液中，其中R 1，R 2，R 3和R 4如本文所述。

公开(公告)号：US20080317848A2

公开(公告)日：2008-12-25

申请号：US10492270

申请日：2004-04-08

Applicant: Thomas Gramatte ,  Peter Gruber ,  Michael Heschel ,  Dirk Pamperin ,  Jan Ploen ,  Steffen Scheithauer ,  Wolfgang Wehner ,  Peter Guldner

Inventor： Thomas Gramatte ,  Peter Gruber ,  Michael Heschel ,  Dirk Pamperin ,  Jan Ploen ,  Steffen Scheithauer ,  Wolfgang Wehner ,  Peter Guldner

IPC: A61K31/445 ,  A61K9/20

CPC classification number: A61K9/2009 ,  A61K9/2054 ,  A61K9/2846 ,  A61K9/5026 ,  A61K9/5078 ,  A61K31/445

Abstract: By suitable retardation oral pharmaceutical compositions containing propiverine or one or several pharmaceutically acceptable salts thereof in an amount of 4 mg to 60 mg propiverine and having a prolonged release of the active agent are produced. Preferably a blend of active agent and optionally one or more acidic substances having a pKa value of less than 6.65 are provided with a retarding coating or are embedded in a matrix which is then optionally coated with further retarding layers.

Abstract translation: 通过合适的阻滞剂，可以制备含有丙哌嗪或其一种或多种药学上可接受的盐的药物组合物，其量为4mg至60mg propiverine并且具有延长的活性剂释放。 优选地，具有pKa值小于6.65的活性剂和任选的一种或多种酸性物质的混合物具有延迟涂层或嵌入基质中，然后任选地涂覆有进一步的阻滞层。

公开(公告)号：US4030928A

公开(公告)日：1977-06-21

申请号：US632936

申请日：1975-11-18

Applicant: Siegfried Gahler ,  Karl-Wilhelm Junge ,  Gunther Fischer ,  Steffen Scheithauer ,  Horst Viola

Inventor： Siegfried Gahler ,  Karl-Wilhelm Junge ,  Gunther Fischer ,  Steffen Scheithauer ,  Horst Viola

IPC: G03C1/09 ,  G03C1/28

CPC classification number: G03C1/09

Abstract: Method for increasing the sensitivity of a photographic silver halide-gelatin emulsion comprising at the beginning of the chemical ripening adding to the emulsion of a dithioester of the formula: ##STR1## in which R is alkyl, .alpha.-hydroxyalkyl, .alpha.-hydroxyaralkyl, condensed aryl, or o- or p-substituted phenyl or .alpha.-naphthyl, the o- or p- located substituent being a F, OH, dialkylamino, sulfo, phenyl, phenylazo or anilidocarbonyl group and R.sub.1 is alkyl or aralkyl.

Abstract translation: 包括在化学成熟开始时添加照相卤化银 - 明胶乳液的敏感性的方法加入下式的二硫代酯的乳液：其中R是烷基，α-羟烷基，α-羟基烷基，缩合的 芳基或邻 - 或对 - 取代的苯基或α-萘基，取代或取代的取代基是F，OH，二烷基氨基，磺基，苯基，苯偶氮或酰亚胺基羰基，R 1是烷基或芳烷基。