Method and apparatus for making polyester web having high adhesion to
coated layers
    1.
    发明授权
    Method and apparatus for making polyester web having high adhesion to coated layers 失效
    用于制造具有对涂层具有高粘附性的聚酯纤维网的方法和设备

    公开(公告)号:US5895744A

    公开(公告)日:1999-04-20

    申请号:US808367

    申请日:1997-02-28

    摘要: Method and apparatus for making thermoplastic web from polyester or polyester blends for subsequent aqueous coating without requirement of an undercoat or primer coat for adhesion of subsequent coatings. Feedstock pellets of polymer, such as polyethylene terephthalate or polyethylene naphthalate, are melted in a screw extruder. Molten polymer is extruded from an extrusion die as a thick, high-viscosity ribbon, which is tempered and stretched in both the machine direction and the transverse direction to form a web of biaxially-oriented polymer of the desired width and thickness. The web is heated to a temperature above T.sub.g to set the biaxial orientation and then is glow discharge treated by passing it through an in-line glow discharge apparatus at atmospheric pressure wherein a stable glow discharge is produced in a gas mixture containing helium between two electrodes connected by an alternating power source operating at a voltage between 0.5 kV and 20 kV at a frequency between 60 Hz and 40 MHz. The web is coated with an aqueous gelatin subbing layer. The coated web then is maintained at elevated temperature. The combination of glow discharge treatment before sub coating and heat treatment after sub coating greatly enhances the adhesion of subsequently-coated aqueous gelatin layers such as photographic emulsions to the web, sufficiently that adhesion-promoting U-coat or primer coat as required in prior base-making methods can be omitted.

    摘要翻译: 用于由聚酯或聚酯共混物制备热塑性网的方法和设备用于随后的水性涂料,而不需要底涂层或底漆涂层用于后续涂层的粘附。 聚合物的原料颗粒如聚对苯二甲酸乙二醇酯或聚萘二甲酸乙二醇酯在螺杆挤出机中熔融。 将熔融聚合物从挤出模头挤出为厚的高粘度带,其在纵向和横向方向上进行回火和拉伸,以形成所需宽度和厚度的双轴取向聚合物网。 将幅材加热至高于Tg的温度以设定双轴取向,然后通过在大气压下通过直列辉光放电装置进行辉光放电处理,其中在包含两个电极之间的氦气的气体混合物中产生稳定的辉光放电 通过在60Hz至40MHz之间的频率以0.5kV和20kV之间的电压工作的交流电源连接。 网上涂有明胶胶层。 然后将涂覆的纸幅保持在升高的温度。 在次涂层之前的辉光放电处理和次涂层之后的热处理的组合大大增强了随后涂覆的含水明胶层(例如照相乳剂)对纸幅的粘附,足以使得在先前碱中所需的粘附促进U形涂层或底漆 制造方法可以省略。

    Photographic element containing a nitrogen glow-discharge treated
polyester substrate
    4.
    发明授权
    Photographic element containing a nitrogen glow-discharge treated polyester substrate 失效
    含有氮辉度放电处理的聚酯基材的照相元件

    公开(公告)号:US5618659A

    公开(公告)日:1997-04-08

    申请号:US599884

    申请日:1996-02-14

    IPC分类号: G03C1/91 G03C1/76

    CPC分类号: G03C1/915

    摘要: The present invention is a polyester film base which has a surface approximately 5 nm thick. The surface of the film base has been altered to include about 6 to 15 atomic percent nitrogen in the form of imines, secondary amines and primary amines in the ratio of about 1:1:2. The invention also includes a film base whose surface includes oxygen in the form of hydroxyl, ether, epoxy, carbonyl or carboxyl groups wherein the oxygen is about 4 to 10 atomic percent above the original surface content of the base. The polyester film base can be either polyethylene terephthalate or polyethylene naphthalate.

    摘要翻译: 本发明是具有约5nm厚的表面的聚酯膜基材。 膜基材的表面已经被改变为包括大约6至15原子%的亚胺,仲胺和伯胺形式的氮,其比例为约1:1:2。 本发明还包括其表面包含羟基,醚,环氧基,羰基或羧基形式的氧的膜基,其中氧比碱的原始表面含量高约4至10原子%。 聚酯膜基材可以是聚对苯二甲酸乙二醇酯或聚萘二甲酸乙二醇酯。

    Imaging elements
    7.
    发明授权
    Imaging elements 失效
    成像元素

    公开(公告)号:US06187521B1

    公开(公告)日:2001-02-13

    申请号:US09221470

    申请日:1998-12-28

    IPC分类号: G03C176

    摘要: The present invention is an imaging element which includes a support, an image forming layer superposed on the support; and at least one layer superposed on the support. The at least one layer superposed on the support is formed from a non-aqueous coating composition of a composite wax particle composed of a wax phase and a non-crosslinked polymer phase and an organic solvent. The wax phase includes a wax having a melting point of greater than 30° C. The wax comprises greater than 80% by weight of the wax phase. The wax phase to non-crosslinked polymer phase ratio is greater than 30/70 and less than 90/10.

    摘要翻译: 本发明是一种成像元件,其包括支撑体,叠置在支撑体上的图像形成层; 以及叠置在支撑体上的至少一层。 叠层在载体上的至少一层由由蜡相和非交联聚合物相组成的复合蜡颗粒和有机溶剂的非水性涂料组合物形成。 蜡相包括熔点大于30℃的蜡。蜡包含大于80重量%的蜡相。 蜡相与非交联聚合物相比大于30/70且小于90/10。

    Control of birefringence dispersion utilizing nanocomposites
    9.
    发明申请
    Control of birefringence dispersion utilizing nanocomposites 失效
    利用纳米复合材料控制双折射色散

    公开(公告)号:US20070042137A1

    公开(公告)日:2007-02-22

    申请号:US11208974

    申请日:2005-08-22

    IPC分类号: C09K19/00

    摘要: Nanocomposite films having controlled dispersion, in out-of-plane birefringence, or equivalent retardation are obtained, including films having essentially flat dispersion behavior, reverse dispersion behavior, and non-birefringence dispersion. The nanocomposite comprises film comprises metallic oxide nanoparticles dispersed in a polymer matrix. The present invention also provides a novel method for making and controlling the out-of-plane birefringence dispersion of a film using an organic-inorganic nanocomposite. The nanocomposite material exhibits high optical transmittance, low haze, and is useful in the field of liquid-crystal displays.

    摘要翻译: 获得具有受控分散,面外双折射或等效延迟的纳米复合膜,包括具有基本平坦的分散行为,反向分散行为和非双折射色散的膜。 纳米复合材料包括膜,其包含分散在聚合物基质中的金属氧化物纳米颗粒。 本发明还提供了使用有机 - 无机纳米复合材料制造和控制膜的平面外双折射色散的新方法。 纳米复合材料表现出高透光率,低雾度,并且在液晶显示器领域是有用的。