摘要:
A process is described for the preparation of storage-stable, multiple emulsions of the water/oil/water (W/O/W) type which comprise one or more active ingredients. The process comprises the steps a) stirring the active ingredient into an aqueous phase, b) emulsifying the aqueous phase by passing the aqueous phase through a large-pored, porous membrane into an oil phase, c) phase inversion of the emulsion from b), by cooling the mixture at a cooling rate of at least 0.3 K/min, where an emulsifier is added either to the aqueous phase in a) or to the oil phase in b) or to both phases.
摘要翻译:描述了制备包含一种或多种活性成分的水/油/水(W / O / W)类型的储存稳定的多重乳液的方法。 该方法包括以下步骤:a)将活性成分搅拌成水相,b)通过将水相通过大孔多孔膜进入油相中乳化水相,c)从b)相转化乳液, 通过以至少0.3K / min的冷却速度冷却混合物,其中将乳化剂加入a)中的水相或b)或两相中的油相中。
摘要:
A process is described for the preparation of storage-stable, multiple emulsions of the water/oil/water (W/O/W) type which comprise one or more active ingredients.The process comprises the steps a) stirring the active ingredient into an aqueous phase, b) emulsifying the aqueous phase by passing the aqueous phase through a large-pored, porous membrane into an oil phase, c) phase inversion of the emulsion from b), by cooling the mixture at a cooling rate of at least 0.3 K/min, where an emulsifier is added either to the aqueous phase in a) or to the oil phase in b) or to both phases.
摘要翻译:描述了制备包含一种或多种活性成分的水/油/水(W / O / W)类型的储存稳定的多重乳液的方法。 该方法包括以下步骤:a)将活性成分搅拌成水相,b)通过将水相通过大孔多孔膜进入油相中乳化水相,c)从b)相转化乳液, 通过以至少0.3K / min的冷却速度冷却混合物,其中将乳化剂加入a)中的水相或b)或两相中的油相中。
摘要:
Method and appliance for carrying out membrane electrophoresis using microfiltration or ultrafiltration membranes, wherein the electroosmotic flow which develops in the membrane pores is reduced or offset by pressure superposition. The appliance for the membrane electrophoresis comprises at least an at least quadrupartite separation chamber (7), having at least one diluate space (16) and one concentrate space (17) and also a cathode space (18) and an anode space (21) having electrodes as anode (19) and cathode (20), with the individual spaces (16, 17, 18, 21) being separated from each other by ultrafiltration or microfiltration membranes (14, 15); feed lines (22) and discharge lines (23) for the diluate, feed lines (24) and discharge lines (25) for the concentrate, optionally feed lines (26) and discharge-lines (27) for the electrode rinsing solution, and also a device (8; 10) or (9; 11) for pressure regulation by means of which a pressure difference, in particular of at least 3 kPa, can be generated between the diluate space (16) and the concentrate space (17).
摘要:
Method for improving selectivity and productivity during purification of charged macromolecules and particles by electrofiltration by means of membranes in the electric filed. The ratio between the electric field and the permeate flow through the membrane is kept constant.
摘要:
Method and appliance for carrying out membrane electrophoresis using microfiltration or ultrafiltration membranes, wherein the electroosmotic flow which develops in the membrane pores is reduced or offset by pressure superposition. The appliance for the membrane electrophoresis comprises at least an at least quadrupartite separation chamber (7), having at least one diluate space (16) and one concentrate space (17) and also a cathode space (18) and an anode space (21) having electrodes as anode (19) and cathode (20), with the individual spaces (16, 17, 18, 21) being separated from each other by ultrafiltration or microfiltration membranes (14, 15); feed lines (22) and discharge lines (23) for the diluate, feed lines (24) and discharge lines (25) for the concentrate, optionally feed lines (26) and discharge lines (27) for the electrode rinsing solution, and also a device (8; 10) or (9; 11) for pressure regulation by means of which a pressure difference, in particular of at least 3 kPa, can be generated between the diluate space (16) and the concentrate space (17).
摘要:
Method for improving selectivity and productivity during purification of charged macromolecules and particles by electrofiltration by means of membranes in the electric filed. The ratio between the electric field and the permeate flow through the membrane is kept constant.
摘要:
A device and a process are described for membrane electrophoresis or electrofiltration. The device contains at least one input chamber, one output chamber, and one cathode chamber and anode chamber each, whereby the individual chambers are separated from one another by membranes, and are integrated into a permanently attached module with membranes, and whereby the electrodes are integrated into the module, and the module is connected to constructions enabling continuous flow through the input and output chambers, as well as through the electrode chambers. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader quickly to ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the appended issued claims. 37 CFR §1.72(b).