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    • 6. 发明申请
    • METHOD FOR REMOVING SOLVENT FROM POLYMER SOLUTION
    • 从聚合物溶液中除去溶剂的方法
    • US20090085244A1
    • 2009-04-02
    • US12239655
    • 2008-09-26
    • Yukihiro KataiTakuro Nishimura
    • Yukihiro KataiTakuro Nishimura
    • B29D7/01
    • C08F6/10C08L1/10C08L1/12C08L1/14
    • A dope containing a TAC and solvent is prepared in a dope producing apparatus. In a case where a new dope having components different from that of the dope described above is produced, a controlling device performs controlling such that an operation of each pump is stopped, each valve is set to a closing position, and a hopper stops supplying the TAC. Thereafter, a washing liquid is introduced into the respective devices of the dope producing apparatus. The dope remained in the respective devices are discharged as a waste liquid together with the washing liquid. The waste liquid is heated in dry gas until a liquid level of the waste liquid turns into a falling-rate drying state in a dry heating chamber provided in a solvent removing device. In a wet heating chamber, the waste liquid is heated in wet gas.
    • 在涂料生产设备中制备含有TAC和溶剂的涂料。 在产生具有与上述涂料不同的组分的新的涂料的情况下,控制装置进行控制,使得每个泵的操作停止,每个阀被设置为关闭位置,并且料斗停止供应 TAC。 此后,将洗涤液引入到涂料生产设备的各个装置中。 残留在各个装置中的涂料与洗涤液一起作为废液排出。 废液在干燥气体中被加热,直到废液的液面在设置在溶剂去除装置中的干燥加热室内变成下降干燥状态。 在湿加热室中,废液以湿气加热。
    • 7. 发明申请
    • SOLUTION CASTING METHOD
    • 解决方案
    • US20080230946A1
    • 2008-09-25
    • US12053564
    • 2008-03-22
    • Takuro NISHIMURATakashi SASAKIRyutaro KEMMOTSUHidekazu YAMAZAKI
    • Takuro NISHIMURATakashi SASAKIRyutaro KEMMOTSUHidekazu YAMAZAKI
    • B29D7/01
    • B29C41/26B29K2001/00B29K2001/12
    • A primary dope containing a polymer, a solvent and an additive is fed to a filtration device in a filtrating unit. The filtration device includes a filter on which a deposit layer of a filtration aid is formed, and impurities in the primary dope are adsorbed to the deposit layer. After the filtration, a residue containing the impurities and the filtration aid on the filter, and the filtration device is filled a cleaning liquid. Then a stirrer in the filtration device is stirred so as to disperse the residue to the cleaning liquid. Thus a slurry liquid is obtained and fed to a separation device. In the separation device, the slurry liquid is fed into a strainer to separate the slurry liquid to the residue and the liquid material. The residue is dried in a drying device and the solvent vapor is recovered.
    • 将含有聚合物,溶剂和添加剂的初级涂料送入过滤装置中的过滤装置。 过滤装置包括过滤器,其上形成有助滤剂的沉积层,并且初级涂料中的杂质被吸附到沉积层。 过滤后,将过滤器上含有杂质和过滤助剂的残余物,过滤装置填充清洗液。 然后搅拌过滤装置中的搅拌器以将残余物分散到清洗液中。 因此获得浆液,并送入分离装置。 在分离装置中,将浆液送入过滤器中以将浆液分离成残留物和液体物质。 将残余物在干燥装置中干燥并回收溶剂蒸气。
    • 8. 发明授权
    • Solution film-forming method
    • 溶液成膜法
    • US07410605B2
    • 2008-08-12
    • US10620412
    • 2003-07-17
    • Takuro NishimuraTadahiro TsujimotoYukihiro Katai
    • Takuro NishimuraTadahiro TsujimotoYukihiro Katai
    • B01D37/02
    • C08J3/09B01J20/103B01J20/24B01J2220/46C08B3/22C08J2301/12Y10T428/31855
    • The solution film-forming method is provided in which the absolute filtration accuracy for a cellulose acylat solution can be improved and filtration throughput can be increased without reducing the pore size of a filtering material. A dope stock solution to be filtrated is first introduced into a body feed tank and a filter aid from a filter aid tank is added and dispersed. As the filter aid, an aid including SiO2 in 50% or more and a cellulose-based aid are mixed for use. The dope stock solution in which the filter aid is dispersed is introduced into a filter machine and subjected to filtration while forming a cake on the surface of the filtering material. After the filtration, a cleaning solvent is supplied in circulation from a cleaning solvent tank, and the cake is discharged as slurry. The filter aid is separated from the slurry by a separating device and burned in a burning device. Then, a regenerated filter aid is sent to the filter aid tank. After the cleaning, a precoat liquid in which the filter aid is dispersed is supplied from a precoat tank to the filter machine to form a precoat layer on the surface of the filtering material.
    • 提供了一种溶液膜形成方法,其中可以提高纤维素酰化溶液的绝对过滤精度,并且可以增加过滤通过量而不减少过滤材料的孔径。 首先将待过滤的原液溶液引入体饲料槽中,并从助滤罐中加入并分散助滤剂。 作为助滤剂,将包含50%以上的SiO 2和纤维素类助剂的助剂混合使用。 将助滤剂分散在其中的涂料原料溶液引入过滤机中并在过滤材料的表面上形成滤饼的同时进行过滤。 过滤后,清洗溶剂从清洗溶剂罐循环供给,滤饼作为浆料排出。 助滤剂通过分离装置与浆料分离并在燃烧装置中燃烧。 然后,将再生的助滤剂送至助滤剂槽。 清洗后,将预分散助滤剂的预涂液从预涂罐供给到过滤机,以在过滤材料的表面上形成预涂层。
    • 10. 发明申请
    • SOLUTION CASTING PROCESS AND APPARATUS
    • 解决方案铸造工艺和设备
    • US20090057943A1
    • 2009-03-05
    • US12202836
    • 2008-09-02
    • Takuro NishimuraHidekazu Yamazaki
    • Takuro NishimuraHidekazu Yamazaki
    • B29C39/14
    • B29C41/26B29K2001/00
    • In a solution casting apparatus, polymer dope containing cellulose ester and solvent is cast to form cellulose ester film continuously. A filtration device has a precoat of a filter aid deposited on a filter screen, for filtering polymer dope to be cast. A washer washes the filtration device after discontinuing supply of the polymer dope to the filtration device. A filter regenerating device deposits a precoat of the filter aid in the washed filtration device by use of precoat solution containing the filter aid, the polymer dope and solvent. A drain line drains the precoat solution from the filtration device after depositing the precoat. The filtration device is charged with solvent saturated gas upon draining. A valve mechanism changes over plural filtration devices, to manage the filtration device among the filtration devices in the washer, the filter regenerating device and the drain line.
    • 在溶液浇铸装置中,浇铸含有纤维素酯和溶剂的聚合物涂料,以连续形成纤维素酯膜。 过滤装置具有沉积在过滤网上的助滤剂预涂层,用于过滤要浇铸的聚合物涂料。 在停止向过滤装置供应聚合物涂料之后,洗涤器洗涤过滤装置。 过滤器再生装置通过使用含有助滤剂,聚合物涂料和溶剂的预涂溶液将经过滤器的预涂层沉积在洗涤的过滤装置中。 在沉积预涂层之后,排水管线从过滤装置中排出预涂液。 过滤装置在排水时带有溶剂饱和气体。 阀机构改变多个过滤装置,以管理洗衣机,过滤器再生装置和排出管路中的过滤装置中的过滤装置。