公开(公告)号：US5277823A

公开(公告)日：1994-01-11

申请号：US5411

申请日：1993-01-19

申请人： William M. Hann ,  Judy H. Bardsley ,  Susan T. Robertson ,  Jan E. Shulman

发明人： William M. Hann ,  Judy H. Bardsley ,  Susan T. Robertson ,  Jan E. Shulman

IPC分类号： C02F5/08 ,  C02F5/10 ,  C02F5/12

CPC分类号： C02F5/083 ,  C02F5/08 ,  C02F5/10 ,  C02F5/12

摘要： A method for inhibiting silica scale formation in aqueous systems using selected low molecular weight (meth)acrylic or maleic acid based copolymers or terpolymers, magnesium ion alone, or the selected copolymers and terpolymers with aluminum ion or magnesium ion, or polyacrylic or polymaleic acid with aluminum ion or magnesium ion.

摘要翻译： 使用选择的低分子量（甲基）丙烯酸或马来酸基共聚物或三元共聚物，单独的镁离子或选择的与铝离子或镁离子的共聚物和三元共聚物，或聚丙烯酸或聚马来酸与 铝离子或镁离子。

公开(公告)号：US5342787A

公开(公告)日：1994-08-30

申请号：US36594

申请日：1993-03-24

申请人： Judy H. Bardsley ,  William M. Hann

发明人： Judy H. Bardsley ,  William M. Hann

IPC分类号： C02F1/60 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C02F5/12 ,  C02F5/14 ,  G01N1/38 ,  G01N33/18 ,  G01N37/00

CPC分类号： G01N1/38 ,  Y10T436/25625

摘要： A method for solubilizing colloidal silica in aqueous systems containing silica is provided wherein a silica-containing sample is diluted, one or more chelants are added and the pH is above 10.0.

摘要翻译： 提供了一种在含有二氧化硅的含水体系中增溶胶体二氧化硅的方法，其中稀释含二氧化硅的样品，加入一种或多种螯合剂，并且pH高于10.0。

公开(公告)号：US06646082B2

公开(公告)日：2003-11-11

申请号：US10234917

申请日：2002-09-04

申请人： Tirthankar Ghosh ,  William M. Hann ,  Barry Weinstein

发明人： Tirthankar Ghosh ,  William M. Hann ,  Barry Weinstein

IPC分类号： C08F12240

CPC分类号： C23F11/173 ,  C08F22/40

摘要： A new class of polymeric corrosion inhibiting compositions incorporating pendant heterocyclic groups which are surprisingly effective copper corrosion inhibitors are disclosed. The polymers form a protective barrier on metallic components to aqueous systems and remain substantive on metallic surfaces over a wide pH range. Moreover, the polymers are resistant to oxidizing biocides, and are substantially impervious to repeated or prolonged exposure to corrosive agents.

公开(公告)号：US4711725A

公开(公告)日：1987-12-08

申请号：US861732

申请日：1986-05-07

申请人： David R. Amick ,  William M. Hann ,  John Natoli

发明人： David R. Amick ,  William M. Hann ,  John Natoli

IPC分类号： C02F5/12 ,  C08F220/06

CPC分类号： C02F5/125 ,  C02F5/12 ,  C08F220/06

摘要： A process for stabilizing aqueous systems containing scale forming salts and inorganic particulates by adding to such systems an effective amount of selected low molecular weight water soluble polymers containing from about 10 to about 84 weight percent (meth)acrylic acid units, greater than 11 to less than about 40 weight percent acrylamido alkyl or aryl sulfonate units and from at least about 5 to about 50 weight percent of one or more units selected from vinyl esters, vinyl acetate and substituted acrylamides, is provided. The terpolymers and interpolymers used in the process provide improved phosphate, iron and zinc stabilization while maintaining their water solubility. Certain preferred polymers also exhibit a high degree of hydrolytic stability at high pH conditions.

摘要翻译： 通过向这种体系中加入有效量的含有约10至约84重量％（甲基）丙烯酸单元的选择的低分子量水溶性聚合物，其含量大于11至少 提供约40重量％的丙烯酰胺基烷基或芳基磺酸酯单元和至少约5至约50重量％的选自乙烯基酯，乙酸乙烯酯和取代的丙烯酰胺的一种或多种单元。 在该方法中使用的三元共聚物和互聚物提供改善的磷酸盐，铁和锌稳定性，同时保持其水溶性。 某些优选的聚合物在高pH条件下也表现出高程度的水解稳定性。

公开(公告)号：US4530766A

公开(公告)日：1985-07-23

申请号：US653998

申请日：1984-09-24

申请人： William M. Hann ,  John Natoli

发明人： William M. Hann ,  John Natoli

IPC分类号： C02F5/10 ,  C08F220/06

CPC分类号： C08F220/06 ,  C02F5/10

摘要： A method for inhibiting scale formation in aqueous systems using water-soluble, low molecular weight copolymers of unsaturated aliphatic carboxylic acids is provided. Copolymers formed from about 30 to about 70 weight percent acrylic acid and from about 70 to about 30 weight percent methacrylic acid, having a weight average molecular weight ranging from about 2000 to about 5000, are preferred for inhibiting the formation of common hardness ion salt scale such as calcium carbonate, calcium phosphate and barium sulfate. The copolymers are hydrolytically stable and can be used effectively in high temperature applications. The copolymers are also effective dispersants for suspended inorganic particulate materials, such as clay, in aqueous systems.

摘要翻译： 提供一种使用水不溶性低分子量不饱和脂肪族羧酸的共聚物抑制水性体系中的结垢的方法。 由约30至约70重量％的丙烯酸和约70至约30重量％的甲基丙烯酸形成的共聚物，其重均分子量范围为约2000至约5000，优选用于抑制常见硬度离子盐垢的形成 如碳酸钙，磷酸钙和硫酸钡。 共聚物具有水解稳定性，可在高温应用中有效使用。 共聚物也是用于水性体系中悬浮的无机颗粒材料如粘土的有效分散剂。

公开(公告)号：US5531934A

公开(公告)日：1996-07-02

申请号：US304063

申请日：1994-09-12

申请人： Michael B. Freeman ,  William M. Hann ,  Yi H. Paik ,  Graham Swift

发明人： Michael B. Freeman ,  William M. Hann ,  Yi H. Paik ,  Graham Swift

IPC分类号： C23G5/02 ,  C09K8/54 ,  C11D3/37 ,  C23F11/08 ,  C23F11/173 ,  C11D3/06

CPC分类号： C09K8/54 ,  C11D3/3719 ,  C23F11/08 ,  C23F11/173

摘要： The present invention provides a method of inhibiting corrosion of ferrous metals in aqueous systems. The corrosion is inhibited by adding an effective amount of one or more poly(amino acids) to the aqueous system. Aqueous systems include for example water treatment systems and equipment used for detergent applications. The poly(amino acids) comprise a reaction product of at least one compound selected from amino acids, amic acids, ammonium salts of monoethylenically unsaturated dicarboxylic acids, ammonium salts of hydroxypolycarboxylic acids and combinations thereof.In one embodiment the poly(amino acids) are added to detergent solutions to inhibit corrosion in equipment for detergent applications. In another embodiment, corrosion inhibitors comprising one or more homopolymers of amino acids and one or more pyrophosphates are added to aqueous systems to inhibit corrosion.

摘要翻译： 本发明提供一种抑制含水体系中黑色金属腐蚀的方法。 通过向水性体系中加入有效量的一种或多种聚（氨基酸）来抑制腐蚀。 水系统包括例如用于洗涤剂应用的水处理系统和设备。 聚（氨基酸）包含至少一种选自氨基酸，酰胺酸，单烯属不饱和二羧酸的铵盐，羟基多羧酸的铵盐及其组合的化合物的反应产物。 在一个实施方案中，将聚（氨基酸）加入到洗涤剂溶液中以抑制用于洗涤剂应用的设备中的腐蚀。 在另一个实施方案中，包含一种或多种氨基酸均聚物和一种或多种焦磷酸盐的腐蚀抑制剂被加入到含水体系中以抑制腐蚀。

公开(公告)号：US5516432A

公开(公告)日：1996-05-14

申请号：US342951

申请日：1994-11-21

申请人： Kathleen J. King ,  William M. Hann ,  Barry Weinstein

发明人： Kathleen J. King ,  William M. Hann ,  Barry Weinstein

IPC分类号： C02F5/10 ,  C02F5/12 ,  C23F11/173

CPC分类号： C02F5/12 ,  C02F5/10

摘要： A process for stabilizing aqueous systems containing scale-forming salts by adding to such systems an effective amount of selected low molecular weight water-soluble polymers containing from 30 to 60 weight percent unsaturated sulfonic acid units, from 35 to 65 weight percent carboxylic acid units and optionally up to 10 weight percent of one or more units selected from non-ionizable monomers, is provided. The polymers used in the process provide improved phosphate and iron stabilization at high temperature conditions. A polymer composition based on 50/50 weight/weight 2-acrylamido-2-methyl-1-propanesulfonic acid/acrylic acid is particularly preferred for use at high temperatures, for example, from 80.degree. to 100.degree. C.

摘要翻译： 通过向这种体系中加入有效量的选自30至60重量％的不饱和磺酸单元，35至65重量％的羧酸单元的选定的低分子量水溶性聚合物和用于稳定含有成垢盐的含水体系的方法，以及 可选地，至多10重量％的选自非离子化单体的一个或多个单元。 该方法中使用的聚合物在高温条件下提供改善的磷酸盐和铁稳定性。 基于50/50重量/重量的2-丙烯酰氨基-2-甲基-1-丙磺酸/丙烯酸的聚合物组合物特别优选用于高温下，例如80-100℃。

公开(公告)号：US4517098A

公开(公告)日：1985-05-14

申请号：US485559

申请日：1983-04-15

申请人： William M. Hann ,  Jean DuPre ,  John Natoli

发明人： William M. Hann ,  Jean DuPre ,  John Natoli

IPC分类号： B01J13/00 ,  B01F17/52 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10

CPC分类号： C02F5/10

摘要： A method for dispersing inorganic materials in aqueous systems using water soluble, low molecular weight copolymers of acrylic acid is provided. Copolymers having a weight average molecular weight of from about 2,000 to about 5,000 formed from about 85 to about 97 weight percent acrylic acid and from about 3 to about 15 weight percent of a hydrophobic comonomer are provided for effective dispersion of suspended particulate matter, such as clay, and for inhibiting the precipitation of common hardness ion salts in aqueous systems. The most preferred copolymers have a weight average molecular weight of about 3,000 and are formed from about 95 weight percent acrylic acid and about 5 weight percent ethyl acrylate.

摘要翻译： 提供了使用水溶性低分子量丙烯酸共聚物将无机材料分散在含水体系中的方法。 提供重均分子量为约2000至约5,000的共聚物，其由约85至约97重量％的丙烯酸和约3至约15重量％的疏水性共聚单体形成，用于有效分散悬浮颗粒物质，例如 粘土，并用于抑制水性体系中普通硬度离子盐的沉淀。 最优选的共聚物的重均分子量为约3,000，并由约95重量％的丙烯酸和约5重量％的丙烯酸乙酯形成。

公开(公告)号：US4299710A

公开(公告)日：1981-11-10

申请号：US582467

申请日：1975-05-30

申请人： Jean Dupre ,  William M. Hann

发明人： Jean Dupre ,  William M. Hann

IPC分类号： C08L1/26 ,  C08L3/00 ,  C08L5/00 ,  C08L33/02 ,  C08L35/00 ,  C09K8/12 ,  C09K7/02

CPC分类号： C09K8/12 ,  C08L1/26 ,  C08L33/02 ,  C08L35/00 ,  C08L5/00 ,  C08L3/00

摘要： The application discloses a viscous aqueous alkaline drilling liquid (fluid) essentially free of clays, for drilling subterranean wells, and a method of drilling such wells. The fluid is circulated into and out of the well, to flush out drill cuttings. The alkaline composition comprises a combination of the thickeners (a) 10 to 90 parts by weight of an addition polymer of an unsaturated carboxylic acid, preferably in the form of a copolymer with another ethylenically unsaturated monomer, for example a copolymer of a major amount of methacrylic acid and a minor amount of ethyl acrylate, the polymer having a molecular weight of from 125,000 to 12,000,000 solubilized in the aqueous system by an alkali such as sodium carbonate, and (b) 10 to 90 parts by weight of a water soluble polysaccharide, or a water soluble derivative thereof ("polysaccharide" being used herein in a generic sense to include such derivatives) such as hydroxyethyl cellulose, the total amount of (a) plus (b) being 100 parts.

摘要翻译： 本申请公开了一种基本上不含粘土的粘性含水碱性钻井液（流体），用于钻井地下井，以及钻井的方法。 流体循环进出井，冲出钻屑。 碱性组合物包含增稠剂（a）10至90重量份的不饱和羧酸的加成聚合物的组合，优选与其它烯属不饱和单体的共聚物形式，例如主要量的 甲基丙烯酸和少量的丙烯酸乙酯，通过碱如碳酸钠溶解在水性体系中的分子量为125,000至12,000,000的聚合物，和（b）10至90重量份的水溶性多糖， 或其水溶性衍生物（通常在本文中用于包括这种衍生物的“多糖”）如羟乙基纤维素，（a）加（b）的总量为100份。