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    • 1. 发明申请
    • BLEND OF POLYESTER AND POLYCARBONATE HAVING TRANSPARENCY AND HEAT RESISTANCE
    • 具有透明性和耐热性的聚酯和聚碳酸酯的共混物
    • US20110015348A1
    • 2011-01-20
    • US12667499
    • 2008-07-03
    • Jeong-Jun HwangDong-June HwangTae-Young KimJae-Bong Lim
    • Jeong-Jun HwangDong-June HwangTae-Young KimJae-Bong Lim
    • C08L69/00
    • C08L67/02C08L69/00C08L2666/18
    • A polyester/polycarbonate blend having superior transparency and heat resistance which is useful for producing transparent polyester articles is disclosed. The blend of polyester and polycarbonate includes (a) polyethyleneterephthalate (PET) prepared with terephthalic acid component and ethylene glycol component, or copolymerized polyethyleneterephthalate prepared with terephthalic acid component and ethylene glycol component, and further copolymerized with 1 to 10 mol % of isophthalic acid, cyclohexane dimethanol (CHDM), di-ethylene glycol and/or alkylene glycol of 3 to 6 carbon atoms component with respect to acid or diol components; (b) polycarbonate (PC); and (c) CHDM modified PET prepared with 20 to 80 mol % CHDM with respect to diol components, wherein the amount of the PC is 10 to 60 wt % with respect to the mixture of (a) PET and (b) PC, and the amount of the (c) CHDM modified PET is 0.2 to 2.5 times by weight with respect to the amount of (b) PC.
    • 公开了一种具有优异的透明性和耐热性的聚酯/聚碳酸酯共混物,其可用于生产透明聚酯制品。 聚酯和聚碳酸酯的混合物包括(a)用对苯二甲酸组分和乙二醇组分制备的聚对苯二甲酸乙二醇酯(PET)或由对苯二甲酸组分和乙二醇组分制备的共聚对苯二甲酸乙二醇酯,并进一步与1至10mol%的间苯二甲酸共聚合, 环己烷二甲醇(CHDM),相对于酸或二醇组分的3至6个碳原子的二乙二醇和/或亚烷基二醇组分; (b)聚碳酸酯(PC); 相对于二醇成分,以20〜80摩尔%CHDM制备的CHDM改性PET,其中PC的量相对于(a)PET和(b)PC的混合物为10〜60重量%,和 (c)CHDM改性PET的量相对于(b)PC的量为0.2〜2.5倍。
    • 9. 发明申请
    • METHOD OF PREPARING IODINATED AROMATIC COMPOUNDS
    • 制备芳族化合物的方法
    • US20100222617A1
    • 2010-09-02
    • US12599400
    • 2008-12-17
    • Han-Seok KimJae-Bong LimIl-Hoon Cha
    • Han-Seok KimJae-Bong LimIl-Hoon Cha
    • C07C17/06C07C17/392
    • C07C17/12C07C17/383C07C17/392C07C25/02
    • The present invention relates to a method of preparing iodinated aromatic compounds, and more preferably a method of preparing iodinated aromatic compounds comprising a step of iodinating a reactant including an aromatic compound, a di-iodo aromatic compound or water, and iodine (I2) in the presence of a zeolite catalyst and oxygen. The method of the present invention has an advantage that by iodination of a reactant including the aromatic compound, and the di-iodo aromatic compound or water in the presence of the zeolite catalyst and oxygen, the temperature of the iodinating reactor can be controlled reliably and constantly, thereby resulting in improved productivity per unit weight of catalyst and inhibition of a side reaction in accordance with suppression of producing impurities. In addition, the productivity of the iodinated aromatic compound, preferably the di-iodo aromatic compound, more preferably a p-di-iodo aromatic compound can be improved, and thus can be widely used in the preparation of a di-iodo aromatic compound such as a p-di-iodo aromatic compound.
    • 本发明涉及一种制备碘化芳族化合物的方法,更优选的是制备碘化芳族化合物的方法,其包括将包含芳族化合物,二碘芳族化合物或水的反应物和碘(I 2)碘化的步骤 存在沸石催化剂和氧气。 本发明的方法具有的优点是,通过在沸石催化剂和氧气的存在下,通过碘化包含芳族化合物和二碘芳族化合物或水的反应物,可以可靠地控制碘化反应器的温度, 从而导致每单位重量催化剂的生产率提高,并且抑制副产物产生杂质。 此外,可以提高碘化芳香族化合物,优选二碘芳香族化合物,更优选对二碘芳香族化合物的生产率,因此可以广泛用于制备二碘芳族化合物,例如 作为对二碘芳族化合物。