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1.发明授权Urea as an additive to improve the viscosity and activity of acrylamide-acrylamide acrylic acid polymers prepared from poor quality acrylamide 失效尿素作为添加剂，用于提高丙烯酰胺 - 丙烯酰胺丙烯酸聚合物的粘度和活性
公开(公告)号：US4042772A
公开(公告)日：1977-08-16
申请号：US739770
申请日：1976-11-08
IPC分类号： C08F20/56 , C08F2/00 , C08F4/00 , C08F20/70 , C08F120/54
CPC分类号： C08F20/56
摘要： Poor quality acrylamide can be used to produce good quality water-soluble polymers by conducting the polymerization in the presence of urea.
摘要翻译： 不优选的丙烯酰胺可用于通过在尿素存在下进行聚合来生产出优质的水溶性聚合物。
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公开(公告)号：US5480921A
公开(公告)日：1996-01-02
申请号：US299689
申请日：1994-09-01
摘要： The use of falling-film evaporation and a concentration means such as centrifugal separation to dehydrate and concentrate a water-in-oil polymer emulsion or suspension is disclosed. In a preferred embodiment, a water-in-oil polymer composition containing less than about 25% active polymer solids is dehydrated in falling-film evaporator to produce an evaporator concentrate containing less than about 5.0% water. The evaporator concentrate then flows to a separation device such as a centrifuge, wherein oil is removed to produce a composition that is substantially a polymer and emulsifying surfactant-in-oil composition containing in excess of about 60 weight % polymer solids. The centrifuge raffinate may optionally be treated in a second separation means to capture additional polymer solids, with optional recycle of the oil-rich raffinate. The concentrated polymer composition is preferably stabilized with a steric stabilizer to produce a free flowing liquid product.
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公开(公告)号：US5110851A
公开(公告)日：1992-05-05
申请号：US461897
申请日：1990-01-08
申请人： Wood E. Hunter , Gary P. Craun
发明人： Wood E. Hunter , Gary P. Craun
IPC分类号： C08J3/12
CPC分类号： C08J3/124 , C08J2300/14 , Y10S524/916
摘要： The instant invention is directed to a method for preparing free-flowing, water-soluble polymer gels comprising:(a) reducing the size of water-soluble polymer gels by a size-reduction means, so as to produce polymer gel particles which are less than 1/2 inch in their longest dimension; and(b) adding to the size-reduced polymer gels of Step (a) 0.001 to 20 percent, by weight, of an amphipathic compound, thereby reducing the adhesion of said gel particles to themselves and other substances.The instant invention is also directed to a free-flowing, water-soluble polymer gel admixture comprising:(a) size-reduced, water-soluble polymer gel particles, wherein said gel particles are less than 1/2 inch in their longest dimension; and(b) an amphipathic compound.
摘要翻译： 本发明涉及一种制备自由流动的水溶性聚合物凝胶的方法，其包括：（a）通过减小尺寸的方法减小水溶性聚合物凝胶的尺寸，以便产生较少的聚合物凝胶颗粒 超过1/2英寸的最长尺寸; 和（b）向步骤（a）的尺寸减小的聚合物凝胶中加入0.001至20重量％的两亲性化合物，从而降低所述凝胶颗粒对其自身和其它物质的粘附性。 本发明还涉及一种自由流动的水溶性聚合物凝胶混合物，其包含：（a）尺寸减小的水溶性聚合物凝胶颗粒，其中所述凝胶颗粒的最长尺寸小于1/2英寸; 和（b）两亲性化合物。
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4.发明授权
公开(公告)号：US4325794A
公开(公告)日：1982-04-20
申请号：US155268
申请日：1980-06-02
CPC分类号： B29C41/28 , C08F2/10 , C08F2/48 , B29C2035/0833 , B29K2033/00 , B29K2105/0073
摘要： Continuous process for the preparation of water-soluble polymers in which highly concentrated monomer solutions may be polymerized by a combination of a visible light and a thermally initiated process.
摘要翻译： 用于制备水溶性聚合物的连续方法，其中高浓度的单体溶液可以通过可见光和热引发方法的组合聚合。
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5.发明授权Cellulosic, modified lignin and cationic polymer composition and process for making improved paper or paperboard 失效纤维素，改性木质素和阳离子聚合物组合物和制备改进纸或纸板的方法
公开(公告)号：US5567277A
公开(公告)日：1996-10-22
申请号：US566469
申请日：1995-12-04
CPC分类号： D21H17/375 , D21H17/23 , D21H17/44 , D21H17/455
摘要： A composition comprising an aqueous cellulosic furnish, a high molecular weight cationic polymer, and an anionic polymer comprising a modified lignin wherein the ratio of the cationic polymer to the anionic polymer is from about 10:1 to 1:10 on an active basis is disclosed. A process employing this composition for making paper or paperboard having improved drainage, retention and formation properties is also provided.
摘要翻译： 公开了一种组合物，其包含水性纤维素配料，高分子量阳离子聚合物和包含改性木质素的阴离子聚合物，其中阳离子聚合物与阴离子聚合物的比例为活性基础为约10:1至1:10 。 还提供了一种采用该组合物制备具有改进的排水，保留和形成性能的纸或纸板的方法。
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公开(公告)号：US5318707A
公开(公告)日：1994-06-07
申请号：US936462
申请日：1992-08-28
申请人： Paul A. Rey , Wood E. Hunter
发明人： Paul A. Rey , Wood E. Hunter
IPC分类号： B01D21/01 , C01B25/235
CPC分类号： C01B25/235 , B01D21/01
摘要： A method for clarifying phosphoric acid by flocculation or coagulation of solids wherein an effective amount of a carboxylic-type polymer having a portion of sulfonic functionality is used as the clarification aid. Preferred polymers are high molecular weight acrylic acid/acrylamido methylpropyl sulfonic acid-type polymers.
摘要翻译： 用于通过絮凝或固体凝固来澄清磷酸的方法，其中使用有效量的具有一部分磺酸官能团的羧酸类聚合物作为澄清助剂。 优选的聚合物是高分子量丙烯酸/丙烯酰胺基甲基丙基磺酸型聚合物。
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公开(公告)号：US5236598A
公开(公告)日：1993-08-17
申请号：US961731
申请日：1992-10-15
申请人： Wood E. Hunter , Lewis D. Morse
发明人： Wood E. Hunter , Lewis D. Morse
CPC分类号： C09D7/008 , C02F1/54 , Y10S210/93
摘要： A novel method of treating circulating water containing over-sprayed, water-borne paint, such as in a paint spray booth operation, comprises adjusting the alkalinity of the paint spray booth water to between about 20 and 600 ppm, on a calcium carbonate basis, by adding a designated alkalinity source thereto, adding a cationic potato starch to the water, contacting the over-sprayed, water-borne paint with the alkalinity-adjusted paint spray booth water after addition of the cationic potato starch, adding an effective amount of a polymer floccing agent to the paint spray booth water, and removing resulting sludge from the paint spray booth water.
摘要翻译： 一种处理含有过喷水性涂料的循环水的新方法，例如在喷漆室操作中，包括以碳酸钙为基础将喷漆室水的碱度调节至约20至600ppm之间， 通过向其中加入指定的碱度源，向水中加入阳离子马铃薯淀粉，在加入阳离子马铃薯淀粉后使过喷雾的水性涂料与碱性调节的喷漆室水接触，加入有效量的 聚合物絮凝剂到喷漆房水中，并从喷漆室水中除去污泥。
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8.发明授权Method of improving gypsum slurry filtration in the production of phosphoric acid 失效在磷酸生产中改善石膏浆料过滤的方法
公开(公告)号：US5211928A
公开(公告)日：1993-05-18
申请号：US775888
申请日：1991-10-15
申请人： Paul A. Rey , Wood E. Hunter
发明人： Paul A. Rey , Wood E. Hunter
IPC分类号： C01B25/225
CPC分类号： C01B25/225
摘要： A method for improving gypsum slurry filtration in the production of wet process phosphoric acid wherein an effective amount of carboxylic-type polymer having a portion of sulfonic functionality is used as the filtration aid. Preferred polymers are high molecular weight polymers of acrylic acid and acrylamido methylpropyl sulfonic acid.
摘要翻译： 一种用于在湿法磷酸生产中改进石膏浆料过滤的方法，其中使用有效量的具有一部分磺酸官能团的羧酸类聚合物作为过滤助剂。 优选的聚合物是丙烯酸和丙烯酰胺基甲基丙基磺酸的高分子量聚合物。
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公开(公告)号：US4904715A
公开(公告)日：1990-02-27
申请号：US231113
申请日：1988-08-11
申请人： Wood E. Hunter , Gary P. Craun
发明人： Wood E. Hunter , Gary P. Craun
IPC分类号： C08J3/12
CPC分类号： C08J3/124 , C08J2300/14 , Y10S524/916
摘要： The instant invention is directed to a method for preparing free-flowing, water-soluble polymer gels comprising:(a) reducing the size of water-soluble polymer gels by a size-reduction means, so as to produce polymer gel particles which are less than 1/2 inch in their longest dimension; and(b) adding to the size-reduced polymer gels of Step (a) 0.001 to 20 percent, by weight, of an amphipathic compound, thereby reducing the adhesion of said gel particles to themselves and other substances.
摘要翻译： 本发明涉及一种制备自由流动的水溶性聚合物凝胶的方法，其包括：（a）通过减小尺寸的方法减小水溶性聚合物凝胶的尺寸，以便产生较少的聚合物凝胶颗粒 超过1/2英寸的最长尺寸; 和（b）向步骤（a）的尺寸减小的聚合物凝胶中加入0.001至20重量％的两亲性化合物，从而降低所述凝胶颗粒对其自身和其它物质的粘附性。
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公开(公告)号：US6121506A
公开(公告)日：2000-09-19
申请号：US329533
申请日：1999-06-10
IPC分类号： A62D3/00 , A62D3/30 , A62D3/34 , A62D3/36 , A62D3/37 , A62D101/02 , A62D101/06 , A62D101/22 , A62D101/26 , A62D101/28 , F42B33/00
CPC分类号： A62D3/36 , A62D3/30 , A62D2101/02 , A62D2101/06 , A62D2101/26 , Y10S149/124
摘要： Energetic materials, such as nitrocellulose, TNT, RDX, and combinations thereof, optionally in combination with chemical warfare agents, such as mustard gas, Lewisite, Tabun, Sarin, Toman, VX, and combinations thereof, are destroyed when chemically reacted according to the method of the invention. The method comprises reacting the energetic materials and chemical warfare agents, of present, with solvated electrons which are preferably produced by dissolving an active metal such as sodium in a nitrogenous base such as anhydrous liquid ammonia.
摘要翻译： 与化学战剂（如芥子气，Lewisite，Tabun，Sarin，Toman，VX及其组合）相结合的能量物质如硝酸纤维素，TNT，RDX及其组合在化学反应时被破坏， 本发明的方法。 该方法包括使能量材料和化学战剂与溶剂化电子反应，溶剂化电子优选通过将诸如钠的活性金属溶解在诸如无水液氨的含氮碱中而产生。
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