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1.发明授权Use of polyacrylic acid in pulp bleaching processes to preserve pulp strength and aid in brightness 失效在纸浆漂白工艺中使用聚丙烯酸以保持纸浆强度并有助于亮度
公开(公告)号：US4255233A
公开(公告)日：1981-03-10
申请号：US86239
申请日：1979-10-18
申请人： Dominic S. Rende , David R. Cosper
发明人： Dominic S. Rende , David R. Cosper
CPC分类号： D21C9/1036
摘要： Improved pulp strength and brightness of chemically produced pulp can be obtained by treating the pulp with the addition of 0.05--0.5% based on the weight of the dry fiber of polyacrylic acid and/or its water-soluble salts in the chlorination bleaching stages.
摘要翻译： 通过在氯化漂白阶段中基于聚丙烯酸和/或其水溶性盐的干纤维的重量添加0.05-0.5％来处理纸浆，可以获得提高纸浆强度和化学制浆的亮度。
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2.发明授权Use of thiourea dioxide in pulp bleaching processes to preserve pulp strength and aid in brightness 失效在纸浆漂白过程中使用二氧化硫脲来保持纸浆强度并有助于亮度
公开(公告)号：US4244780A
公开(公告)日：1981-01-13
申请号：US94513
申请日：1979-11-15
申请人： Dominic S. Rende , David R. Cosper
发明人： Dominic S. Rende , David R. Cosper
CPC分类号： D21C9/1036
摘要： Inproved pulp strength and brightness of chemically produced pulp can be obtained by treating the pulp with the addition of 0.05-0.5% based on the weight of the dry fiber of thiourea dioxide in the chlorination or hypochlorite bleaching stages.
摘要翻译： 通过在氯化或次氯酸盐漂白阶段中加入基于硫脲二氧化硫的干纤维重量的0.05-0.5％的纸浆处理纸浆，可获得经过化学处理的纸浆的纸浆强度和亮度。
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公开(公告)号：US5441601A
公开(公告)日：1995-08-15
申请号：US286235
申请日：1994-08-08
申请人： David R. Cosper , Karen R. Tubergen
发明人： David R. Cosper , Karen R. Tubergen
IPC分类号： D21C5/02
CPC分类号： D21C5/025 , D21C5/027 , Y02W30/648
摘要： A method for deinking of repulped xerographic paper comprising adding an organic polymeric particulate and a substantially water insoluble organic ester to a repulped aqueous slurry containing xerographic toner particles in an amount sufficient to at least partially agglomerate the xerographic toner particles within the slurry to larger particle sizes; and removing the xerographic toner particles from the slurry by one or more liquid/solid separation techniques.
摘要翻译： 一种用于再分散的静电复印纸的脱墨的方法，包括将有机聚合物颗粒和基本上不溶于水的有机酯添加到含有静电印刷调色剂颗粒的重排浆状含水浆料中，其量足以至少部分地将浆料中的静电色调剂颗粒团聚到更大颗粒尺寸 ; 并通过一种或多种液/固分离技术从浆料中除去静电印刷调色剂颗粒。
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公开(公告)号：US4523932A
公开(公告)日：1985-06-18
申请号：US573089
申请日：1984-01-23
申请人： David R. Cosper , Gretchen L. McKay
发明人： David R. Cosper , Gretchen L. McKay
CPC分类号： B01D53/1493 , B01D53/14
摘要： A method for using an aqueous hydrotrope solution to remove at least a portion of a solvent from a stream of air containing the solvent, wherein the method comprises introducing the stream of air containing the solvent into a scrubber containing an effective amount of the aqueous hydrotrope solution, and contacting of the stream of air containing the solvent with the aqueous hydrotrope solution thereby producing a first scrubber product stream containing scrubbed air and a second scrubber product stream containing the aqueous hydrotrope solution and the solvent.
摘要翻译： 一种使用水溶助溶剂水溶液从含有溶剂的空气流中除去至少一部分溶剂的方法，其中所述方法包括将含有溶剂的空气流引入含有有效量的水溶助长剂溶液的洗涤器中 以及含有溶剂的空气流与水溶助长剂溶液的接触，从而产生含有洗涤空气的第一洗涤器产物流和含有水溶助溶剂溶液和溶剂的第二洗涤器产物流。
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5.发明授权Ethylene oxide/propylene oxide block copolymers as green binders for ceramics 失效环氧乙烷/环氧丙烷嵌段共聚物作为陶瓷的绿色粘合剂
公开(公告)号：US5324770A
公开(公告)日：1994-06-28
申请号：US900503
申请日：1992-06-17
申请人： David R. Cosper
发明人： David R. Cosper
IPC分类号： C04B35/632 , C04B35/111 , C04B35/634 , C08L29/04 , C08L39/00 , C08L39/06 , C08L71/02
CPC分类号： C04B35/63416 , C04B35/111 , C04B35/634 , C04B35/63444 , C04B35/63488 , C08L71/02
摘要： The present invention comprises block copolymers of alkylene oxides, such as ethylene oxide and propylene oxide, which are further formulated with additional polymers such as poly(N-vinylpyrrolidinone), poly (vinyl alcohol), and certain low foam additives. These polymers are useful for the coating of alumina powders for use in ceramics. In aqueous media, their lower viscosities enable facile spray drying of the coated alumina powders. The coated alumina powders may be compressed under relatively low pressure into high density forms with superior unfired compressive strengths (green strength), they are surprisingly insensitive to relative humidity, are readily ejected from the mold, and finally do not have a deleterious effect upon the ultimate high temperature sintering of the formed bodies.
摘要翻译： 本发明包括环氧烷，例如环氧乙烷和环氧丙烷的嵌段共聚物，其进一步与另外的聚合物如聚（N-乙烯基吡咯烷酮），聚（乙烯醇）和某些低泡沫添加剂一起配制。 这些聚合物可用于涂覆用于陶瓷的氧化铝粉末。 在水性介质中，它们的较低粘度使得涂覆的氧化铝粉末能够容易地喷雾干燥。 涂覆的氧化铝粉末可以在相对低的压力下被压缩成具有优异的未压缩强度（绿色强度）的高密度形式，它们对相对湿度令人惊讶地不敏感，容易从模具中排出，并且最终不会对该模具产生有害影响 最终的高温烧结成型体。
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公开(公告)号：US4444573A
公开(公告)日：1984-04-24
申请号：US390294
申请日：1982-06-21
申请人： David R. Cosper , Gretchen L. McKay
发明人： David R. Cosper , Gretchen L. McKay
CPC分类号： B01D53/1493 , B01D53/14
摘要： A method for using an aqueous hydrotrope solution to remove at least a portion of a solvent from a stream of air containing the solvent, wherein the method comprises introducing the stream of air containing the solvent into a scrubber containing an effective amount of the aqueous hydrotrope solution, and contacting of the stream of air containing the solvent with the aqueous hydrotrope solution thereby producing a first scrubber product stream containing scrubbed air and a second scrubber product stream containing the aqueous hydrotrope solution and the solvent.
摘要翻译： 一种使用水溶助溶剂水溶液从含有溶剂的空气流中除去至少一部分溶剂的方法，其中所述方法包括将含有溶剂的空气流引入含有有效量的水溶助长剂溶液的洗涤器中 以及含有溶剂的空气流与水溶助长剂溶液的接触，从而产生含有洗涤空气的第一洗涤器产物流和含有水溶助溶剂溶液和溶剂的第二洗涤器产物流。
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公开(公告)号：US5266243A
公开(公告)日：1993-11-30
申请号：US914806
申请日：1992-07-16
申请人： James F. Kneller , David R. Cosper
发明人： James F. Kneller , David R. Cosper
IPC分类号： C04B35/634 , B29B9/00 , C04B35/64
CPC分类号： C04B35/63404
摘要： The invention provides an improved method for preparing fired ceramic oxide material. A ceramic oxide powder is dispersed in an aqueous solution containing a dispersant having as an active ingredient a dissolved salt of an anionic polymer formed from maleic acid, maleic acid anhydride, or fumaric acid. The slurry containing the dispersed ceramic oxide powder is spray-dried, compressed while substantially dry, and heated to produce a fired ceramic material. Ceramic materials having relatively higher density and strength can be produced by the method.
摘要翻译： 本发明提供了一种制备烧制陶瓷氧化物材料的改进方法。 将陶瓷氧化物粉末分散在含有由马来酸，马来酸酐或富马酸形成的阴离子聚合物的溶解盐作为活性成分的分散剂的水溶液中。 将含有分散的陶瓷氧化物粉末的浆料喷雾干燥，基本干燥时压缩，并加热以制备烧制的陶瓷材料。 可以通过该方法制造具有相对较高密度和强度的陶瓷材料。
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公开(公告)号：US4734258A
公开(公告)日：1988-03-29
申请号：US82877
申请日：1987-08-07
申请人： David R. Cosper
发明人： David R. Cosper
CPC分类号： C02F1/20
摘要： An improved method for scavenging dissolved oxygen from industrial waters which comprises treating said waters with at least 1 ppb of morpholinohexose reductone.
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公开(公告)号：US4432834A
公开(公告)日：1984-02-21
申请号：US139176
申请日：1980-04-11
CPC分类号： D21H17/19 , D21H17/07 , D21H17/455
摘要： A composition is provided for addition to cellulosic fibers prior to felting them into a sheet comprising as component (a) a monomeric water soluble diallyl dimethyl ammonium halide or homopolymer thereof or mixtures thereof and as component (b) a water dispersible complex fatty amido compound, the proportion of (a) and (b) being sufficient to enhance softness of the dried sheet while increasing or not substantially reducing absorbency of water and tensile strength.
摘要翻译： 提供了一种组合物，用于在将纤维素纤维毡化成包含作为组分（a）单体水溶性二烯丙基二甲基卤化铵或其均聚物或其混合物和作为组分（b）水分散性络合物脂肪酰胺化合物的片材之前， （a）和（b）的比例足以提高干燥片材的柔软度，同时增加或不显着降低水的吸收性和拉伸强度。
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10.发明授权
公开(公告)号：US4298428A
公开(公告)日：1981-11-03
申请号：US176230
申请日：1980-08-07
CPC分类号： D21C9/1036
摘要： Improved pulp strength and brightness of chemically produced pulp can be obtained by treating the pulp with the addition of 0.05-0.5% based on the weight of the dry fiber of certain amine materials in the hypochlorite bleaching stage.
摘要翻译： 通过在次氯酸盐漂白阶段中加入基于某些胺材料的干纤维重量的0.05-0.5％的纸浆处理纸浆，可以获得提高纸浆强度和化学制浆的亮度。
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