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11. 发明授权

US3923802A Process for preparing metal salts of dichloroisocyanuric acid 失效
标题翻译：制备二氯异氰尿酸金属盐的方法
公开(公告)号：US3923802A
公开(公告)日：1975-12-02
申请号：US48587374
申请日：1974-07-05
申请人： DOW CHEMICAL CO
发明人： HILL HOWARD W
IPC分类号： C07D251/36 , C07D251/28
CPC分类号： C07D251/36
摘要： The invention is a process for preparing an aqueous solution of an alkali metal salt of dichloroisocyanuric acid by reacting an aqueous solution of the corresponding trialkali metal salt of cyanuric acid with a water immiscible solvent containing in excess of two mols of trichloroisocyanuric acid for each mol of cyanuric acid salt utilized.
摘要翻译：本发明是制备二氯异氰脲酸的碱金属盐的水溶液的方法，其通过使相应的三聚氰酸的三碱金属盐的水溶液与含有超过2摩尔三氯异氰尿酸的水不混溶溶剂反应，使用氰尿酸盐。

12. 发明授权

US3923628A Diaphragm cell chlorine production 失效
标题翻译：隔膜细胞氯生产
公开(公告)号：US3923628A
公开(公告)日：1975-12-02
申请号：US49381274
申请日：1974-08-01
申请人： DOW CHEMICAL CO
发明人： GRITZNER GERHARD
IPC分类号： C25B1/46 , C25B9/08 , C25B11/04 , C25B9/00
CPC分类号： C25B9/08 , C25B1/46 , C25B11/0489
摘要： Improved apparatus and process to electrolytically produce chlorine gas and an alkali metal hydroxide in a diaphragm cell. The improved process comprises circulating the catholyte and contacting a foraminous cathode with an oxidizing gas having a regulatably controlled moisture content.
摘要翻译：在膜片电池中电解产生氯气和碱金属氢氧化物的改进的装置和方法。改进的方法包括使阴极电解液循环并与具有可调控水分含量的氧化气体接触多孔阴极。

13. 发明授权

US3923460A Dual ion chromatograph using parallel columns for ionic analysis 失效
标题翻译：双离子色谱使用平行柱进行离子分析
公开(公告)号：US3923460A
公开(公告)日：1975-12-02
申请号：US52309174
申请日：1974-11-12
申请人： DOW CHEMICAL CO
发明人： PARROTT ALBERT ROSS , BENEFIEL DONALD CLARENCE
IPC分类号： G01N30/20 , G01N30/40 , G01N30/46 , G01N30/60 , G01N30/62 , G01N30/96 , G01N27/08 , G01N31/04 , G01N31/08
CPC分类号： G01N30/466 , G01N30/96 , G01N2030/202 , G01N2030/207 , G01N2030/402 , G01N2030/628 , G01N2030/965
摘要： Integrated system for the concurrent quantitative analysis, using ion exchange resin, of chromatographically separable cations and anions contained in a single measured portion of aqueous sample solution includes an eluant water reservoir, a sample injection valve, a pump delivering water from the reservoir to the sample injection valve, and thence to a first stream splitter feeding two parallel ion exchange columns. One column is charged with anion exchange resin and the other with cation exchange resin, preferably with differing bed depths but in any event selected in nature and geometry to achieve differing elution times for each ion present and being determined, and ordinarily to achieve elution of all the ions of one sign before elution of the ions of the opposite sign, e.g., all the anions before the cations. The effluent from each column is joined through a second stream splitter and the resulting single stream is directed to a conductivity cell with associated readout means. The effluent from the conductivity cell may be discarded but is ordinarily passed through clean-up resin bed means and cycled back to the eluant water reservoir. Preferably means are provided for (1) substituting columns with different resins and bed depths for specific analyses, (2) occasionally flushing the sample solution delivery system with bactericide, or (3) running known standard solution.
摘要翻译：用于使用离子交换树脂，色谱分离的阳离子和阴离子的单次测量部分的水样品溶液的同时定量分析的集成系统包括洗脱水储存器，样品注射阀，将水从储存器输送到样品喷射阀，然后进入到两个平行离子交换柱的第一流分离器。一列装有阴离子交换树脂，另一列装有阳离子交换树脂，优选具有不同的床深度，但是在任何情况下，在本质上和几何形状中选择，以获得存在和确定的每个离子的不同洗脱时间，并且通常实现全部洗脱洗脱相反符号离子前的一个符号的离子，例如阳离子前的所有阴离子。来自每列的流出物通过第二流分离器连接，并将所得单流引导到具有相关读出装置的电导池。可以丢弃来自导电池的流出物，但通常通过清理树脂床装置并循环回到洗脱水储存器。优选提供（1）用不同树脂和床层深度替代柱进行特定分析的方法，（2）偶尔用杀菌剂冲洗样品溶液输送系统，或（3）运行已知的标准溶液。

14. 发明授权

US3922229A Powderless etching bath for magnesium printing plates 失效
标题翻译：无机蚀刻浴用于镁印版
公开(公告)号：US3922229A
公开(公告)日：1975-11-25
申请号：US41505273
申请日：1973-11-12
申请人： DOW CHEMICAL CO
发明人： FISHABER MARVIN H , WHITE PHILIP C
IPC分类号： C23F1/22 , C09K13/06
CPC分类号： C23F1/22
摘要： An etching bath for printing plates of magnesium or alloys thereof comprising: aqueous nitric acid; a sulfated fatty acid ester; a first saturated or olefinically unsaturated carboxylic acid which comprises a hydroxy-unsubstituted monocarboxylic acid of from 2 to 6 carbon atoms, or a polycarboxylic or hydroxy substituted monocarboxylic acid of from 2 to 8 carbon atoms; a polyhydric alcohol of from 2 to 10 carbon atoms or an ether derivative thereof; a second saturated or olefinically unsaturated carboxylic acid which comprises at least one hydroxyunsubstituted monocarboxylic acid of from 8 to 24 carbon atoms; and an alkylarylsulfonate. A concentrated additive comprising all of the foregoing bath ingredients except the aqueous nitric acid, to which water and nitric acid are added to provide a powderless etching bath. A method for etching printing plates of magnesium or alloys thereof using the foregoing bath formulation.
摘要翻译：一种用于镁或其合金的印版的蚀刻液，包括：硝酸水溶液; 硫酸脂肪酸酯; 包含2至6个碳原子的羟基未取代的单羧酸或2至8个碳原子的多元羧酸或羟基取代的一元羧酸的第一饱和或烯属不饱和羧酸; 2至10个碳原子的多元醇或其醚衍生物; 第二饱和或烯属不饱和羧酸，其包含至少一种8-24个碳原子的羟基 - 未取代的单羧酸; 和烷基芳基磺酸盐。包含除了硝酸水溶液之外的所有上述浴成分的浓缩添加剂，向其中加入水和硝酸以提供无粉末腐蚀浴。使用上述浴配方蚀刻镁或其合金的印版的方法。

15. 发明授权

US3922205A Portable polarographic analyzer and quick polarographic determinations 失效
标题翻译：便携式极谱分析仪和快速极谱法测定
公开(公告)号：US3922205A
公开(公告)日：1975-11-25
申请号：US51096474
申请日：1974-10-01
申请人： DOW CHEMICAL CO
发明人： MCLEAN JAMES D , HOLLAND JOHN F
IPC分类号： G01N27/48 , G01N33/00
CPC分类号： G01N33/0047 , G01N27/48
摘要： compounds, such as aldehydes, by reacting the test sample in aqueous medium with a hydrazine acid addition salt at a pH of about 3 to 6.5 to form the hydrazone in aqueous medium which is detectable with great sensitivity and specificity. The working electrode may be underlying or may be suspended, but in any event, is best replaced or renewed or cleaned between determinations. In an embodiment that is especially useful for carrying out polarographic analysis in non-aqueous, but conducting, medium there is employed a third electrode, a counter electrode, and the special circuit includes an operational amplifier electrically connected to each of the counter electrode and the reference electrode in such a way that the reference electrode is nonworking and relatively non-variant, the current flow in the cell being between the working electrode and the counter electrode as monitored and controlled in response to the reference electrode.

A special purpose portable polarographic instrument and method for the rapid repetitive quantitative determination of polarographically reactive species in aqueous solution utilizing a sample cell in which are placed a conducting sample solution, a suitable reference electrode and a fixed area working electrode and, connected to the electrodes, a special circuit for (1) impressing across the cell a reducing or oxidizing voltage throughout a time linear pre-selected range of scanning potential, (2) proportionately converting the consequent current flow to a potential, and (3) measuring the potential. The maximum potential is retained in a peak seeking voltage circuit and is read on a voltmeter in a voltage follower circuit. The polarographic test utilizing the instrument is made more specific for
摘要翻译：一种特殊用途的便携式极谱仪和方法，用于使用样品池在水溶液中快速重复定量测定极谱反应物质，其中放置导电样品溶液，合适的参比电极和固定区工作电极，并连接到电极（1）在扫描电位的整个时间线性预选范围内，在整个电池上印刷减小或氧化电压的特殊电路，（2）将随后的电流比例成比例地转换成电势，以及（3）测量电位。最大电位保留在峰值寻找电压电路中，并在电压跟随器电路的电压表上读取。使用该仪器的极谱测试通过使水性介质中的测试样品与约3至6.5的pH值的肼酸加成盐反应，使O PARALLEL -C-化合物（例如醛）更具特异性，以形成含水的腙可以很好的灵敏度和特异性检测的培养基。工作电极可能是潜在的或可能被暂停，但在任何情况下，最好在测定之间进行更换或更新或清洁。

16. 发明授权

US3919122A Manufacture of resinous compositions having high electroconductivity 失效
标题翻译：具有高导电性的树脂组合物的制造
公开(公告)号：US3919122A
公开(公告)日：1975-11-11
申请号：US33150873
申请日：1973-02-12
申请人： DOW CHEMICAL CO
发明人： TIGNER REUBEN A
IPC分类号： H01B1/00 , H01B1/22 , H01B1/06
CPC分类号： H01B1/22 , H01B1/00
摘要： Non-conductive or poorly conductive resinous materials such as organic polymers are rendered highly conductive, e.g., volume resistivities as low as 10 3 ohm-cm, by including therein a finely divided, copper metal-containing solid, a reactive metal such as zinc, silver or the like and a halide source such as a vinylidene chloride copolymer and reacting the reactive metal with the halide source to form the conductive material. Such compositions can be fabricated into thin layers which are useful as electrodes in capacitors and into other articles wherein electroconductivity is required.
摘要翻译：非导电或导电不良的树脂材料如有机聚合物通过在其中包含细碎的含铜金属固体，反应性金属如高分子量的金属，使其具有高导电性，例如体积电阻率低至10 -3欧姆 - 厘米作为锌，银等，以及卤化物源如偏二氯乙烯共聚物，并使反应性金属与卤化物源反应以形成导电材料。这样的组合物可以制成薄层，其可用作电容器中的电极，并且可用作需要导电性的其它制品。

17. 发明授权

US3917152A Egg carton 失效
标题翻译：蛋纸箱
公开(公告)号：US3917152A
公开(公告)日：1975-11-04
申请号：US22411872
申请日：1972-02-07
申请人： DOW CHEMICAL CO
发明人： BURKETT FRANCIS L
IPC分类号： B65D85/32 , B65D1/24 , B65D1/36
CPC分类号： B65D85/324
摘要： An egg carton structure, particularly designed to package extra large or jumbo grade size eggs and the like, having a bottom section with a plurality of downwardly disposed deep receiving pockets or cells and an interconnected closable cover and locking means. The walls of adjacent cells extend upwardly to form resilient dividers or separators between the cells to prevent contact of eggs reposing in adjacent cells. Variable thicknesses of cell and divider walls, in conjunction with a combination of other unique elements, results in a structure which can be easily thermoformed into a serviceable carton and does not require extensive lateral or transverse ribs, walls or other means to provide lateral support between cells or general stiffness reinforcement of the egg carton as previously considered necessary.
摘要翻译：一种蛋纸盒结构，特别设计用于包装超大型或巨型级尺寸的蛋等，其具有底部，多个下部设置的深度接收袋或单元以及互连的可关闭盖和锁定装置。

18. 发明授权

US3915799A Method of minimizing cofactor loss in enzymatic reactors 失效
标题翻译：使酶反应器中辅因子损失最小化的方法
公开(公告)号：US3915799A
公开(公告)日：1975-10-28
申请号：US48587474
申请日：1974-07-05
申请人： DOW CHEMICAL CO
发明人： DAVIS JAMES C
IPC分类号： C12N11/00 , C12P1/00 , C12P7/56 , C12D1/02
CPC分类号： C12P7/56 , B01D61/243 , B01D63/02 , C12P1/00
摘要： An improved process for conversion of substrates to products by use of enzyme/cofactor combinations in conjunction with semipermeable membranes is disclosed. Loss of cofactor through such membranes is largely prevented simply by employing an excess of the enzyme over the stoichiometric amount required to complex essentially all of the cofactor.
摘要翻译：公开了通过使用酶/辅因子组合与半透膜结合而将底物转化成产物的改进方法。通过这种膜的辅助因子的丧失很大程度上通过使用过量的酶超过使基本上所有辅因子复合所需的化学计量的量来防止。

19. 发明授权

US3915642A Quantitative analysis of single ion species 失效
标题翻译：单离子物种的定量分析
公开(公告)号：US3915642A
公开(公告)日：1975-10-28
申请号：US38626573
申请日：1973-08-06
申请人： DOW CHEMICAL CO
发明人： SMALL HAMISH , STEVENS TIMOTHY S
IPC分类号： B01J39/26 , G01N27/06 , G01N30/96 , G01N27/08 , G01N31/04 , G01N31/08
CPC分类号： G01N30/482 , B01J39/26 , B01J2220/54 , G01N27/06 , G01N30/96 , Y10T436/173845 , Y10T436/175383
摘要： Method of quantitative analysis of a single ion species paired with at least one species of counter valent ion in an aqueous or highly polar sample solution, the solution containing substantially no other ions of the same valence as said single ion species, save for ions capable of forming a relatively undissociated ion pair with hydrogen ions or hydroxide ions, in which the sample solution is added to an ion exchange resin bed, the resin being an ion exchange resin capable of exchanging ions of the same valence as the at least one species of counter valent ion and the ion exchange resin being in an ion form easily eluted by other ions of the same valence, eluting the single ion species from the ion exchange resin bed and quantitatively detecting the single ion species with a conductivity cell and associated readout means. The apparatus is an ion exchange column charged with an ion exchange resin in an ion form easily elutable by the counter valent ions accompanying a single ion species to be determined, a conductivity cell and associated read-out means, means for bringing sample solution and eluant water to the ion exchange column and liquid conduit means for conducting effluent from the ion exchange column to the conductivity cell.
摘要翻译：在水性或高极性样品溶液中与至少一种相对离子配对的单一离子物质进行定量分析的方法，所述溶液基本上不含有与所述单一离子种类相同价态的其它离子，除了能够与氢离子或氢氧根离子形成相对未离解的离子对，其中将样品溶液加入到离子交换树脂床中，所述树脂是能够交换与至少一种反应物相同价态的离子的离子交换树脂离子交换树脂离子形式容易地被相同化合价的其他离子洗脱，从离子交换树脂床洗脱单离子物质，并用电导池和相关读出装置定量检测单离子种类。

20. 发明授权

US3914404A Dentifrices and method for reducing enamel solubility 失效
标题翻译：牙釉质和减少牙釉质溶解度的方法
公开(公告)号：US3914404A
公开(公告)日：1975-10-21
申请号：US2928170
申请日：1970-04-16
申请人： DOW CHEMICAL CO
发明人： LANGER HORST G
IPC分类号： A61K8/19 , A61K8/44 , A61Q11/00 , A61K9/68 , A61K7/22
CPC分类号： A61Q11/00 , A61K8/19 , A61K8/44 , A61K2800/51
摘要： Dentifrice compositions fortified with a trace to 15 percent of a substantially water-insoluble stannous chelate of a synthetic amino carboxylic acid wherein the chelate moieties have an Sn:N ratio of 1:1. Their use induces reaction of stannous tin with dental enamel to form a complex basic stannous phosphate, and thereby reduces the solubility of the enamel.
摘要翻译：牙粉组合物用痕量添加至合成氨基羧酸的基本上不溶于水的亚锡螯合物的15％，其中螯合部分的Sn：N比为1:1。它们的用途引起锡锡与牙釉质的反应，形成复杂的碱性亚锡酸盐，从而降低搪瓷的溶解度。

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