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公开(公告)号:US5595865A
公开(公告)日:1997-01-21
申请号:US635011
申请日:1990-12-28
CPC分类号: G03C1/025 , G03C2200/09 , G03C2200/60 , Y10S430/136
摘要: Photographic emulsions are quickly chilled to a homogeneous, particulate gel by injection of carbon dioxide coolant, while the emulsion is agitated. This process is carried out in a housing having a pair of parallel auger screws to transport emulsion circuitously within the housing. Carbon dioxide coolant is injected through a plurality of nozzles in the housing and is then removed from the housing through a vent line.
摘要翻译: 当搅拌乳液时,通过注射二氧化碳冷却剂将照相乳剂快速冷却成均匀的颗粒状凝胶。 该过程在具有一对平行螺旋螺丝的壳体中进行,以在壳体内循环输送乳液。 二氧化碳冷却剂通过壳体中的多个喷嘴注入,然后通过排气管线从壳体中移出。
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公开(公告)号:US5472835A
公开(公告)日:1995-12-05
申请号:US263101
申请日:1994-06-21
CPC分类号: G03C1/005 , B01F1/0011 , G03C7/388 , B01F2215/005 , B29C47/0009
摘要: The present invention is a process for continuous preparation of solutions of water-immiscible or water-insoluble organic compounds in substantially non-aqueous organic solvents. Particularly, a process for the continuous preparation of colour forming coupler solutions for use in the photographic industry is described. The process uses a twin screw extruder wherein the compound to be dissolved is introduced into a first section of the extruder. The compound passes along the extruder interior to a section where organic solvent is introduced to form the required solution.
摘要翻译: 本发明是在基本上非水有机溶剂中连续制备水不混溶或水不溶性有机化合物的溶液的方法。 特别地,描述了用于连续制备用于照相工业中的成色成色剂溶液的方法。 该方法使用双螺杆挤出机,其中待溶解的化合物被引入挤出机的第一部分。 化合物沿着挤出机内部通过引入有机溶剂以形成所需溶液的部分。
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