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    • 32. 发明授权
    • Solution casting process
    • 溶液铸造工艺
    • US08101109B2
    • 2012-01-24
    • US11910221
    • 2006-03-02
    • Ryo Takeda
    • Ryo Takeda
    • B29C41/28
    • B29C41/28B29C41/32B29K2001/00
    • Solution casting of polymer film (76, 102) is provided. A dope (22, 115-117) containing a polymer of cellulose triacetate and solvent is cast on a casting support band (34, 121) which moves, to form a cast film (69, 122), and then the cast film is stripped from the casting support band and dried, to produce the polymer film. In the solution casting, the cast film is cooled shortly before stripping the cast film from the casting support band. Preferably, a cooling temperature to which the cast film is cooled is set lower than 6 deg. C. The cast film is cooled within a predetermined cooling region, disposed to start at a stripping point for the cast film, and to extend upstream therefrom with a length equal to or less than 25% of the length of the casting support band. The cast film is blown by cooling gas caused to flow for cooling.
    • 提供聚合物膜(76,102)的溶液浇铸。 将含有三醋酸纤维素和溶剂的聚合物的涂料(22,115-117)浇铸在移动的铸塑支撑带(34,121)上,以形成流延膜(69,122),然后剥去流延膜 从铸造支撑带上干燥,制成聚合物膜。 在溶液铸造中,在从铸造支撑带剥离流延膜之前不久将冷却膜冷却。 优选地,将流延膜冷却的冷却温度设定为低于6度。 C.流延膜在预定的冷却区域内被冷却,设置为在流延膜的剥离点处开始,并且在其上游延伸长度等于或小于铸造支撑带的长度的25%。 流延薄膜由冷却气体吹送流动以进行冷却。
    • 37. 发明申请
    • PROCESS AND APPARATUS FOR PRODUCTION OF COLORLESS TRANSPARENT RESIN FILM
    • 生产无色透明树脂薄膜的工艺和设备
    • US20100187719A1
    • 2010-07-29
    • US12622932
    • 2009-11-20
    • Jitsuo OISHISotaro HIRAMATSUShuta KIHARA
    • Jitsuo OISHISotaro HIRAMATSUShuta KIHARA
    • B29C39/16B29C39/14
    • B29C41/26B29C41/28B29K2079/08C08G73/1007C08G73/1042C08G73/1046C08G73/105C08G73/1075C08G73/1078C08J5/18C08J2379/08C08L79/08H05K1/0346H05K1/0393H05K3/007H05K3/227H05K2201/0108H05K2201/0154H05K2203/0156H05K2203/0759
    • A method for producing a colorless transparent resin film by a solution flow casting method containing: flow-casting an organic solvent solution of a polyamic acid or a polyimide on a support; and drying, the method containing at least the following step (1), step (2) and step (3) in this order, and an apparatus therefor: (1) a step of flow-casting an organic solvent solution of a polyamic acid or polyamide on a support, (2) a step of evaporating the organic solvent while blowing a gas having an oxygen content of from 0.001 to 15% by volume at a temperature of from 100 to 170° C. onto the flow-cast material, and releasing as a self-supporting film from the support, and (3) a step of performing the following step (3-1) and step (3-2) in this order: (3-1) a step of lowering a residual ratio of the organic solvent in the self-supporting film while blowing a gas having an oxygen content of 15% by volume or less at a temperature of from 100 to 250° C. onto the film by using at least one dryer of a type of blowing a heated gas, and (3-2) a step of lowering the residual ratio of the organic solvent in the self-supporting film while blowing a gas having an oxygen content of 5% by volume or less at a temperature of from 150 to 400° C. onto the film by using at least one dryer of a type of blowing a heated gas.
    • 一种通过溶液流延法生产无色透明树脂膜的方法,包括:在载体上流延浇注聚酰胺酸或聚酰亚胺的有机溶剂溶液; 和干燥,该方法至少依次包含步骤(1),步骤(2)和步骤(3)及其装置:(1)流延聚酰胺酸的有机溶剂溶液的步骤 或载体上的聚酰胺,(2)在100〜170℃的温度下将氧含量为0.001〜15体积%的气体吹入流延材料的同时蒸发有机溶剂的步骤, 并从支持体释放为自支撑膜,以及(3)按照以下顺序执行以下步骤(3-1)和步骤(3-2)的步骤:(3-1)降低残留物的步骤 在100〜250℃的温度下,将氧含量为15体积%以下的气体吹送到薄膜上时,使用至少一种干燥机,将自支撑薄膜中的有机溶剂的比例 吹送加热气体,(3-2)在吹入氧含量为5%的气体的同时降低自支撑膜中的有机溶剂的残留率的步骤,通过 通过使用至少一种吹入加热气体的干燥器在150至400℃的温度下将体积或更小的量加到薄膜上。
    • 40. 发明申请
    • METHOD FOR PRODUCING OPTICAL FILM, OPTICAL FILM, POLARIZING PLATE AND DISPLAY
    • 生产光学薄膜,光学薄膜,极化板和显示器的方法
    • US20100105830A1
    • 2010-04-29
    • US12532574
    • 2007-12-10
    • Tadahiro Kaneko
    • Tadahiro Kaneko
    • C08L1/10B29D7/01G02B5/30
    • B29C41/28B29K2001/00B29K2001/12B29K2995/0018G02B5/3033G02F1/133528
    • A method of manufacturing an optical film by a solution casting method, in which a poor peeling region of a metal support can be eliminated by casting a dope on the surface of the metal support after a surface treatment film is formed on the surface of the metal support by atmospheric pressure plasma treatment or excimer UV treatment. Consequently, limitation on the conditions of film production is reduced and productivity is enhanced. Furthermore, since peeling of the film is enhanced, lateral variation in peeling position is reduced and variation in retardation value is reduced sharply, and thereby an optical film having optical characteristics excellent in transparency and flatness can be manufactured. Consequently, a method for manufacturing an optical film, an optical film, a polarizing plate and a display device which meet the demands of a high quality thin and wide protective film for polarizing plate can be provided.
    • 通过溶液流延法制造光学膜的方法,其中在金属表面上形成表面处理膜之后,通过在金属载体的表面上浇铸涂料可以消除金属载体的差的剥离区域 支持大气压等离子体处理或准分子紫外线处理。 因此,电影制作条件的限制降低,生产力提高。 此外,由于膜的剥离增强,剥离位置的横向变化减小,延迟值的变化急剧下降,从而可以制造透明性和平坦度优异的光学特性的光学膜。 因此,可以提供一种制造满足高质量薄膜和宽泛的偏振片保护膜的要求的光学膜,光学膜,偏振片和显示装置的方法。