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    • 5. 发明申请
    • PROCESS FOR EVALUATING CORROSION RESISTANCE OF COATING
    • 评估涂层耐腐蚀性的方法
    • US20120095698A1
    • 2012-04-19
    • US13143819
    • 2010-01-04
    • Shi Hua ZhangLorenzo Fred PelosiRobert C. Nahas
    • Shi Hua ZhangLorenzo Fred PelosiRobert C. Nahas
    • G06F19/00
    • G01N17/02
    • The present invention is directed to a process for corrosion resistance evaluation of coated metals substrates, such as autobodies. An anode and cathode coated with protective coating being tested are exposed to an electrolyte in a chamber of a corrosion resistance evaluator. These coatings are provided with predetermined and standardized defects, such as micro-holes to accelerate the corrosion of the underlying metal substrate in a predictable and repeatable manner. The coated cathode/anode pair is subject to a start-up period followed by series preset DC voltages for preset durations that are interspaced with recovery periods. The impedance data collected are then used to arrive at the corrosion performance resistance of the coating applied over the cathode/anode pair. The foregoing evaluator substantially reduces the time required to test corrosion from several days (40 plus days) to few days (about two days).
    • 本发明涉及一种用于耐腐蚀性评价的涂覆金属基材例如自动化体系的方法。 将被测试的涂有保护涂层的阳极和阴极暴露于耐腐蚀性评估器室中的电解质。 这些涂层具有预定和标准化的缺陷,例如微孔,以可预测和可重复的方式加速底层金属基底的腐蚀。 涂覆的阴极/阳极对经受启动周期,随后是预置的持续时间的串联预设直流电压,其间隔有恢复周期。 然后使用收集的阻抗数据来获得施加在阴极/阳极对上的涂层的耐腐蚀性能。 上述评估者大大减少了从几天(40天)到几天(约两天)测试腐蚀所需的时间。
    • 7. 发明申请
    • Methods for Purifying an Aqueous Hydrochloric Acid Solution
    • 纯化盐酸水溶液的方法
    • US20100150816A1
    • 2010-06-17
    • US12516680
    • 2007-11-28
    • Stephen W. OldigesMark Andrew HarmerJesse S. JonesDavid C. Confer
    • Stephen W. OldigesMark Andrew HarmerJesse S. JonesDavid C. Confer
    • C01B7/07
    • C01B7/0706C02F1/24C02F1/5236C02F1/56C02F1/74C02F2101/101C02F2101/12C02F2101/20
    • Methods for purifying an aqueous hydrochloric acid solution waste stream having an impurity fraction comprising an initial Ti fraction, an initial S fraction and an initial Si fraction; that provide purified aqueous hydrochloric acid solutions having a final Ti fraction of less than 250 ppm, a final S fraction of less than 200 ppm, and a final Si fraction of less than 10 ppm, which may be determined with inductively coupled plasma spectroscopy. Process steps in various embodiments include sparging with an gas; mixing the sparged solution with a precipitation agent comprising a sufficient amount of an alkali earth metal salt and, optionally, a phosphoric acid source, to provide a metal salt precipitate; and mixing the initial aqueous acid solution or, optionally, the sparged aqueous acid solution, with a flocculating polymer. A preferred alkali earth metal salt is barium chloride and preferred flocculating polymers are poly(diallyldialkylammonium chloride) homopolymers and copolymers.
    • 纯化含有初始Ti级分,初始S级分和初始Si级分的杂质级分的盐酸水溶液废水流的方法; 其提供具有小于250ppm的最终Ti馏分,小于200ppm的最终S馏分和小于10ppm的最终Si分数的纯化的盐酸水溶液,其可以通过电感耦合等离子体光谱法测定。 各种实施方案中的方法步骤包括用气体喷射; 将喷射溶液与包含足够量的碱土金属盐和任选的磷酸源的沉淀剂混合以提供金属盐沉淀; 并将初始的酸性水溶液或任选地,鼓泡的酸性水溶液与絮凝聚合物混合。 优选的碱土金属盐是氯化钡,优选的絮凝聚合物是聚(二烯丙基二烷基氯化铵)均聚物和共聚物。
    • 8. 发明申请
    • ACCELERATED UV IRRADIATION TEST ON COATINGS
    • 加速涂料紫外线辐照测试
    • US20130306883A1
    • 2013-11-21
    • US13982497
    • 2012-02-01
    • Lucy G. Lim
    • Lucy G. Lim
    • G01N31/00
    • G01N31/00G01N17/004
    • The present disclosure is directed to a process for testing UV irradiation on a target coating. The process provides high UV irradiation having one or more UV irradiation wavelengths in a range of from 250 nm to 450 nm and a peak irradiation power in a range of from 400 W/m2 to 20,000 W/m2. The process provides accelerated testing for coatings that can be completed within a few minutes to a few hours instead of a few thousand hours to many months by conventional testing methods. The process can test one or more target coatings and control coatings under one or more selected testing conditions.
    • 本公开涉及用于测试靶涂层上的UV照射的方法。 该方法提供具有250nm至450nm范围内的一种或多种UV照射波长和400W / m 2至20,000W / m 2范围内的峰值照射功率的高UV照射。 该方法可以通过常规测试方法,在几分钟到几个小时而不是几千小时到几个月内完成涂层的加速测试。 该方法可以在一个或多个选定的测试条件下测试一种或多种靶涂层和控制涂层。