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    • 1. 发明申请
    • Near Infrared Ray Absorbing Filter, Optical Filter for Plasma Display and Plasma Display Panel
    • 近红外线吸收滤光片,等离子显示屏和等离子显示屏的光学滤波器
    • US20090009899A1
    • 2009-01-08
    • US11816250
    • 2006-02-15
    • Masashi NakamaruTakatoshi Miki
    • Masashi NakamaruTakatoshi Miki
    • G02B5/22
    • G02B5/223G02B5/208
    • A near infrared ray absorbing filter is a film gained by biaxially oriented polyester having a near infrared ray absorbing agent, and the melting point of this polyester is no higher than 230° C. The optical filter for a plasma display is provided with a near infrared ray blocking layer made of polyester containing a near infrared ray absorbing agent and an image quality correcting layer made of polyester containing a compound which absorbs visible light having an absorption maximum wavelength in a range from 560 nm to 600 nm. These layers are layered through an integrated process by means of a co-extrusion method, according to which these layers are melted and extruded together from a co-extrusion process, and thus, a biaxially oriented film is formed. The melting point of the polyester in these layers is no higher than 230° C.
    • 近红外线吸收滤光片是通过具有近红外线吸收剂的双轴取向聚酯获得的膜,该聚酯的熔点不高于230℃。等离子体显示器用滤光器设有近红外线 由含有近红外线吸收剂的聚酯制成的遮光层和由含有吸收最大波长在560nm至600nm范围内的可见光的化合物的聚酯制成的图像质量校正层。 这些层通过共挤出方法通过一体化方法分层,根据这些方法,这些层从共挤出工艺熔融并挤出在一起,因此形成双轴取向膜。 这些层中的聚酯的熔点不高于230℃。
    • 4. 发明授权
    • Laminated polyester film
    • 层压聚酯薄膜
    • US6136420A
    • 2000-10-24
    • US151402
    • 1998-09-11
    • Takashi HibiyaTakatoshi Miki
    • Takashi HibiyaTakatoshi Miki
    • B32B27/18B32B27/36B32B3/26
    • B32B27/18B32B27/36Y10S428/91Y10T428/2495Y10T428/24967Y10T428/24992
    • A laminated polyester film is disclosed which contains not more than 0.05% by weight of a fluorescent agent. The film comprises a fine cell-containing polyester film that contains 55 to 95% by weight of polyester and 5 to 45% by weight of an immiscible thermoplastic resin, said fine cell-containing polyester film having a density of 0.40 to 1.30 g/cm.sup.3 and at lest one other polyester. The other polyester film is laminated as an outermost layer on at least one of the surfaces of the fine cell-containing polyester film. It has a density of not less than 0.40 g/cm.sup.3 and not less than 0.01% by weight of a fluorescent whitening agent. The concentration of the fluorescent whitening agent in the other polyester film is higher than that in the fine cell-containing polyester film.
    • 公开了一种层压聚酯薄膜,其含有不超过0.05重量%的荧光剂。 该薄膜包含含有聚合物重量百分比为55-95%,不混溶热塑性树脂为5-45%重量的含细胞的聚酯薄膜,所述含细胞的聚酯薄膜的密度为0.40至1.30g / cm3 并且至少另外一个聚酯。 将另一种聚酯膜作为最外层层叠在含微细电池的聚酯膜的至少一个表面上。 其密度不小于0.40g / cm 3,并且不小于0.01重量%的荧光增白剂。 其他聚酯膜中的荧光增白剂的浓度高于含细胞的聚酯膜。
    • 6. 发明授权
    • Process for producing biaxially oriented polyester film
    • 制造双轴取向聚酯薄膜的方法
    • US5139727A
    • 1992-08-18
    • US734063
    • 1991-07-22
    • Shigeo UtsumiKichinojyo TomitakaYujiro FukudaTakatoshi Miki
    • Shigeo UtsumiKichinojyo TomitakaYujiro FukudaTakatoshi Miki
    • B29C55/06B29C55/14
    • B29C55/143B29C55/065B29K2067/00
    • The present invention relates to a process for producing a biaxially oriented polyester film. The process is carried out using the following steps: (a) stretching an amorphous film substantially comprising polyethylene terephthalate 1.2 to 4.0 times in the machine direction by single-stage or multi-stage process to obtain a film having an index of birefringence of 1.times.10.sup.-3 to 2.5.times.10.sup.-2 ; (b) stretching the thus obtained film 1.1 to 3.5 times in the machine direction by single-stage or multi-stage process of 3.0.times.10.sup.-2 to 8.0.times.10.sup.-2 without cooling the film to the glass transition temperature thereof or below; (c) cooling the thus obtained film to the glass transition temperature thereof or below; (d) heating the thus obtained film to the glass transition temperature or higher and stretching the film in the machine direction by a single-stage or multi-stage process at a stretching ratio which brings the overall stretching ratio of 4.0 to 9.0 times; and (e) stretching the thus obtained film at least 3.2 times in the transverse direction. According to the method of the present invention, a biaxially oriented polyester film which is excellent in thickness uniformity and flat and slippery properties can be easily produced and high-speed production thereof is possible, therefore, the present invention has a great industrial value.
    • 本发明涉及双轴取向聚酯薄膜的制造方法。 该方法使用以下步骤进行:(a)通过单级或多级方法在纵向上将基本上包含聚对苯二甲酸乙二醇酯的非晶膜拉伸1.2〜4.0倍,得到双折射率为1×10 -3的膜, 3至2.5x10-2; (b)通过3.0×10 -2〜8.0×10 -2-2的单阶段或多阶段方法在机器方向上将如此得到的膜拉伸1.1〜3.5倍,而不将膜冷却至玻璃化转变温度以下; (c)将由此获得的膜冷却至其玻璃化转变温度或更低; (d)将由此获得的膜加热至玻璃化转变温度以上,并通过单阶段或多阶段的拉伸倍率使拉伸倍率为4.0〜9.0倍的拉伸倍率拉伸膜的纵向; 和(e)将如此获得的膜在横向上拉伸至少3.2倍。 根据本发明的方法,可以容易地制造厚度均匀性和平滑性良好的双轴取向聚酯膜,并且可以高速生产,因此本发明具有很大的工业价值。