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    • 1. 发明授权
    • Porous film production method
    • 多孔膜生产方法
    • US09044899B2
    • 2015-06-02
    • US12846073
    • 2010-07-29
    • Koju ItoHidekazu Yamazaki
    • Koju ItoHidekazu Yamazaki
    • B29D7/00B29C67/20
    • B29C67/202
    • A solution of polymer uniformly dissolved into a solvent is prepared in a solution preparing step. The solvent contains good and poor solvent components for the polymer. The solution is discharged from a coating die to a support to be a coating film thereon in a primary body forming step. A water drop generating step and a fluidity decreasing step are performed in parallel with each other while wet air is applied to the coating film. Water drops are generated on a surface of the coating film in the water drop generating step. The good solvent component is evaporated from the coating film to decrease fluidity of the solution for forming the coating film in the fluidity decreasing step. In the water drop evaporating step, dry air is applied to the coating film. The solvent and the water drops are evaporated from the coating film to obtain the porous film.
    • 在溶液制备步骤中制备均匀溶解在溶剂中的聚合物溶液。 溶剂含有聚合物的良好和差的溶剂组分。 在主体形成工序中,将溶液从涂布模具排出到作为其上的涂膜的载体上。 在将湿空气施加到涂膜的同时,并行地进行水滴产生步骤和流动性降低步骤。 在水滴生成工序中,在涂膜的表面产生水滴。 从涂膜中蒸发出良好的溶剂组分,以降低在流动性降低步骤中形成涂膜的溶液的流动性。 在水滴蒸发步骤中,将干燥空气施加到涂膜上。 溶剂和水滴从涂膜蒸发得到多孔膜。
    • 2. 发明授权
    • Method for producing porous film
    • 多孔膜的制造方法
    • US08357428B2
    • 2013-01-22
    • US12413938
    • 2009-03-30
    • Koju ItoHidekazu Yamazaki
    • Koju ItoHidekazu Yamazaki
    • B05D5/00
    • B05D5/02B05D1/02B05D3/007B05D3/0254
    • After a second liquid is applied to a support and dried, a first liquid is applied thereon. On a film of the first liquid, a third liquid (water) is supplied in droplets using an inkjet-type liquid supply unit. An area supplied with the droplets is referred to as porous area. Next, an organic solvent is evaporated from the film and the droplets are evaporated from the porous area. Thus, a porous film is obtained. The porous film has the porous areas in which a plurality of pores are arranged. Since the droplets are directly formed by an inkjet printing method, a condensation process and a droplet growing process are unnecessary. Thus, the porous film is produced efficiently. Shapes of the porous areas can be changed easily. The porous areas can be formed on the porous film in various patterns.
    • 将第二液体施加到载体上并干燥后,在其上施加第一液体。 在第一液体的膜上,使用喷墨型液体供给单元以液滴形式供给第三液体(水)。 提供有液滴的区域被称为多孔区域。 接下来,从膜中蒸发有机溶剂,并从多孔区域蒸发液滴。 因此,得到多孔膜。 多孔膜具有排列有多个孔的多孔区域。 由于通过喷墨打印方法直接形成液滴,所以不需要冷凝过程和液滴生长过程。 因此,有效地制造多孔膜。 多孔区域的形状可以轻松改变。 可以以多种形式在多孔膜上形成多孔区域。
    • 9. 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。
    • 10. 发明授权
    • Solution casting process and cellulose ester film
    • 溶液浇铸工艺和纤维素酯膜
    • US07491357B2
    • 2009-02-17
    • US11293236
    • 2005-12-05
    • Hidekazu Yamazaki
    • Hidekazu Yamazaki
    • B29C49/08
    • B29C55/06B29C41/28B29D7/01B29K2001/00B29K2001/12
    • In solution casting, dope containing a polymer and a solvent is cast on to a support to form a cast film. The cast film is stripped from the support to obtain a polymer film of cellulose ester, for example, cellulose acetate propionate (CAP). The polymer film is stretched. While the polymer film is stretched, tension of 80 N/m or more is applied thereto in a stretching direction. Polymer film surface temperature thereof is set equal to or more than a glass transition temperature Tg thereof. Furthermore, before stretching the polymer film, the polymer film stripped from the support is dried. After stretching the polymer film, the polymer film is dried. Also, the solution casting process is according to multi casting of plural dopes at one time together for plural cast films in the polymer film.
    • 在溶液流延中,将含有聚合物和溶剂的涂料浇铸到载体上以形成流延膜。 将流延膜从载体上剥离,得到纤维素酯的聚合物膜,例如醋酸丙酸纤维素(CAP)。 聚合物膜被拉伸。 当聚合物膜被拉伸时,在拉伸方向上施加80N / m以上的张力。 其聚合物膜表面温度设定为等于或大于其玻璃化转变温度Tg。 此外,在拉伸聚合物膜之前,将从载体剥离的聚合物膜干燥。 拉伸聚合物膜后,将聚合物膜干燥。 此外,溶液浇铸工艺是根据聚合物膜中的多个浇铸膜一次多次掺合多种涂料的方法。