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    • 1. 发明授权
    • Water-soluble copolymerized polyester resin composition
    • 水溶性共聚聚酯树脂组合物
    • US5070179A
    • 1991-12-03
    • US653963
    • 1991-02-12
    • Kwang T. KimTae H. KimYoung S. Kim
    • Kwang T. KimTae H. KimYoung S. Kim
    • C08G63/66C08G63/181C08G63/46C08G63/672C08G63/68C08G63/688C08G63/695C08L67/00C08L67/02C09D167/02
    • C08G63/672C08G63/68
    • The present invention relates to water-soluble copolymerized polyester resin suitable to produce a polyester film having a good adhesion and surface properties.That is, the composition of the present invention comprise 50.about.85 mol % of aromatic dicarbonic acid, 0.5.about.25 mol % of aromatic dicarbonic acid containing sulfonic acid alkali metallic base and 0.5.about.25 mol % of dicarbonic acid containing silane system represented by the following formula (I) in the total dicorbonic acid components, wherein the glycol components contained in the composition comprising more than 60 mol % of aliphatic or alicyclic glycol and 1.about.40 mol % of diethylene glycol or triethylene glycol. ##STR1## wherein R.sub.1 is aliphatic hydrocarbon group of 1 to 15 carbon atoms, R.sub.2 is aliphatic hydrocarbon group of 1 to 4 carbon atoms.
    • 本发明涉及适于生产具有良好粘附性和表面性能的聚酯薄膜的水溶性共聚聚酯树脂。 也就是说,本发明的组合物包含50%的芳族二羧酸85摩尔%,含有20摩尔%的含有磺酸碱金属碱的芳族二碳酸的0.5分子和含有25摩尔%的含二羧酸的硅烷体系的0.5分子 在总二氯碳酸组分中的下式(I)表示,其中所述组合物中所含的二醇组分包含超过60摩尔%的脂族或脂环族二醇和1分子量40摩尔%的二甘醇或三甘醇。 (I)其中R 1为1至15个碳原子的脂族烃基,R 2为1至4个碳原子的脂族烃基。
    • 2. 发明授权
    • Method for the preparation of polyester for a film
    • 薄膜聚酯的制备方法
    • US5382651A
    • 1995-01-17
    • US107067
    • 1993-08-17
    • Kwang T. KimTae H. KimSeung B. Jun
    • Kwang T. KimTae H. KimSeung B. Jun
    • C08G63/78C08K3/36
    • C08G63/78C08K3/36
    • A method for the production of polyester suitable to be molded into a film with excellent surface properties.The method comprises passing dispersion-in-water type silica sol with pH 8 to 11 including sodium oxide as a stabilizer and silica particles with average diameters 0.01 to 0.3 .mu.m through a column of cation exchange resin having the following formula 1 and the strong basic anion exchange having the following formula 2, in sequence to adjust the pH value to 2 to 4, adding an hydrogen bonding agent and ethylene glycol thereto, heating the resultant silica sol under a reduced pressure to remove water, so as to obtain dispersion-in-ethylene glycol type silica sol, and adding 0.01 to 5% by weight of the dispersion-in-ethylene glycol type silica sol, as based on the weight of polyester to be produced, at any step during the ester interchange reaction. ##STR1##
    • 一种生产聚酯的方法,适用于模塑成具有优异表面性能的膜。 该方法包括通过具有下列通式1的阳离子交换树脂柱和通式为1的阳离子交换树脂柱,通过含有pH8〜11的水分散型二氧化硅溶胶,包括氧化钠作为稳定剂,平均粒径为0.01〜0.3μm的二氧化硅粒子 按照下式2的阴离子交换,将pH值调整为2〜4,向其中加入氢键合剂和乙二醇,在减压下加热得到的二氧化硅溶胶除去水,得到分散体 - 乙二醇型二氧化硅溶胶,并且在酯交换反应期间的任何步骤中,以所生产的聚酯的重量计,添加0.01-5重量%的乙二醇型二氧化硅溶胶分散体。 (1)(2)
    • 5. 发明申请
    • Printed Circuit Board With Reduced Signal Distortion
    • 具有减少信号失真的印刷电路板
    • US20090308649A1
    • 2009-12-17
    • US12140730
    • 2008-06-17
    • Moises CasesTae H. KimBhyrav M. Mutnury
    • Moises CasesTae H. KimBhyrav M. Mutnury
    • H05K1/11H05K3/00G06F17/50
    • H05K1/0224H05K1/0225H05K1/0237H05K1/0253H05K3/0005H05K2201/09681Y10T29/49124
    • A printed circuit board with reduced signal distortion, including one or more layers of non-conductive substrate upon which are disposed conductive pathways that conduct signals, the signals characterized by distortion at least partly caused by orientation of the conductive pathways on the layers of the printed circuit board, and a periodically patterned reference plane; each conductive pathway that conducts signals oriented orthogonally or diagonally at forty-five degrees with respect to other conductive pathways that conduct signals on the printed circuit board; the periodically patterned reference plane comprising a conductor having discontinuities arranged in a periodically recurring pattern, the pattern of the discontinuities oriented on a surface of a layer of the printed circuit board at an optimum angle, with respect to the conductive pathways that conduct signals on the printed circuit board, that reduces distortion of the signals.
    • 具有降低的信号失真的印刷电路板,包括一层或多层不导电基底,在其上设置传导信号的导电路径,其特征在于至少部分地由印刷的层上的导电路径的取向引起的变形 电路板和周期性图案化参考平面; 每个导电通路相对于在印刷电路板上传导信号的其它导电通路传导正交或对角地定向四十五度的信号; 所述周期性图案化参考平面包括具有以周期性重复图案布置的不连续性的导体,所述不连续性的图案相对于在所述印刷电路板上传导信号的导电路径以最佳角度定向在所述印刷电路板的层的表面上 印刷电路板,可以减少信号的失真。