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公开(公告)号：US5354480A
公开(公告)日：1994-10-11
申请号：US837742
申请日：1992-02-18
申请人： Peter M. Robinson , Nguyen Van-Det
发明人： Peter M. Robinson , Nguyen Van-Det
CPC分类号： C02F1/54 , C08F2/32 , D21H17/37 , D21H17/455
摘要： The dewatering of sludge is improved by utilizing a water-soluble cationic copolymer in the aqueous phase of a water-in-oil emulsion wherein the copolymer has been prepared by (i) preparing an aqueous solution of a non-ionic monomer and a portion of the cationic monomer, (ii) emulsifying the aqueous solution in a hydro-carbon oil to form a water-in-oil emulsion, (iii) adding the balance of the total intended cationic monomer to the emulsion while substantially no polymerization is occurring, and (iv) polymerizing the monomers.
摘要翻译： 通过在油包水乳液的水相中使用水溶性阳离子共聚物来改善污泥的脱水，其中共聚物已经通过（i）制备非离子单体的水溶液和一部分 阳离子单体，（ii）在水 - 碳油中乳化水溶液以形成油包水乳液，（iii）将总计出的阳离子单体的余量加入到乳液中，同时基本上不发生聚合，和 （iv）使单体聚合。
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公开(公告)号：US5110864A
公开(公告)日：1992-05-05
申请号：US747302
申请日：1991-08-19
申请人： Peter M. Robinson , Nguyen Van-Det
发明人： Peter M. Robinson , Nguyen Van-Det
CPC分类号： C02F1/54 , C08F2/32 , D21H17/37 , D21H17/455
摘要： Water-in-oil emulsions of cationic water-soluble copolymers which are prepared by incorporating only a portion of the cationic monomer in the aqueous phase prior to forming the water-in-oil emulsion in which polymerization will occur, forming the emulsion, adding the balance of the cationic monomer such that essentially no polymerization occurs immediately after the addition, and polymerizing the monomers. Copolymers prepared by this process show improved performance over conventionally prepared cationic copolymers.
摘要翻译： 阳离子水溶性共聚物的油包水乳液，其通过在形成其中将发生聚合的油包水乳液形成乳液之前，仅将一部分阳离子单体并入水相中制备，形成乳液，加入 阳离子单体的平衡，使得在加入后立即基本上不发生聚合，并使单体聚合。 通过该方法制备的共聚物显示比常规制备的阳离子共聚物改进的性能。
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公开(公告)号：US5109062A
公开(公告)日：1992-04-28
申请号：US614728
申请日：1990-11-15
申请人： Peter M. Robinson , K. T. Chang , Nguyen Van-Det
发明人： Peter M. Robinson , K. T. Chang , Nguyen Van-Det
摘要： A Mannich emulsion containing a stabilizing amount of a guanidine salt has been found to exhibit substantially increased long term stability, even at elevated temperature.
摘要翻译： 已经发现含有稳定量的胍盐的曼尼希乳液即使在升高的温度下也显示出显着增加的长期稳定性。
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公开(公告)号：US4845138A
公开(公告)日：1989-07-04
申请号：US182161
申请日：1988-04-15
IPC分类号： C08K5/1539
CPC分类号： C08K5/1539
摘要： Water-in-oil emulsions of water-soluble polymers, i.e. polyacrylamides, which are subject to freeze-thaw degradation are stabilized against repeated freeze-thaw cycles by incorporating specific substituted succinic anhydrides.
摘要翻译： 经受冻融降解的水溶性聚合物即聚丙烯酰胺的油包水乳液通过掺入特定取代的琥珀酸酐而被反复冻融循环稳定。
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公开(公告)号：US4785036A
公开(公告)日：1988-11-15
申请号：US54655
申请日：1987-05-27
IPC分类号： C08K5/1539 , C08K5/15
CPC分类号： C08K5/1539
摘要： Water-in-oil emulsions of water-soluble polymers, i.e. polyacrylamides, which are subject to freeze-thaw degradation are stabilized against repeated freeze-thaw cycles by incorporating specific substituted succinic anhydrides.
摘要翻译： 经受冻融降解的水溶性聚合物即聚丙烯酰胺的油包水乳液通过掺入特定取代的琥珀酸酐而被反复冻融循环稳定。
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公开(公告)号：US5185395A
公开(公告)日：1993-02-09
申请号：US675787
申请日：1991-03-27
申请人： Peter M. Robinson , Nguyen Van-Det
发明人： Peter M. Robinson , Nguyen Van-Det
IPC分类号： C08F2/32 , C08F220/04
CPC分类号： C08F2/32 , C08F220/04
摘要： Copolymer water-in-oil emulsions of 2-acrylamido-2-methylpropane sulphonic acid (AMPS) monomer and an anionic comonomer such as methacrylic acid are prepared with substantially less coagulum formation by means of a specific dual surfactant system. The resultant emulsions have enhanced long-term storage stability.
摘要翻译： 制备2-丙烯酰胺基-2-甲基丙烷磺酸（AMPS）单体和阴离子共聚单体如甲基丙烯酸的共聚物油包水乳液，其具有通过特定双重表面活性剂体系形成的凝聚物。 所得乳液具有增强的长期储存稳定性。
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公开(公告)号：US5110853A
公开(公告)日：1992-05-05
申请号：US573484
申请日：1990-08-27
申请人： Nguyen Van-Det , Peter M. Robinson
发明人： Nguyen Van-Det , Peter M. Robinson
IPC分类号： C08F2/32 , C08J3/09 , C08K20060101 , C08K5/06 , C08L33/26
CPC分类号： C08J3/09 , C08F2/32 , C08K5/06 , C08J2300/14
摘要： Water-in-oil emulsions of water-soluble polymers, i.e. polyacrylamides, which are subject to freeze-thaw degradation are stabilized against repeated freeze-thaw cycles by incorporating specific ethoxylated alkylphenol surfactants containing low levels of ethoxylation. Moreover, the resultant emulsions exhibit superior resistance to sheet gel formation under ambient storage conditions.
摘要翻译： 经受冷冻 - 融化降解的水溶性聚合物（即聚丙烯酰胺）的油包水乳液通过掺入含有低水平乙氧基化的特定乙氧基化烷基酚表面活性剂而被反复冻融循环稳定。 此外，所得乳液在环境保存条件下表现出优异的耐片层凝胶形成能力。
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公开(公告)号：US5081182A
公开(公告)日：1992-01-14
申请号：US488312
申请日：1990-03-05
申请人： Peter M. Robinson , Nguyen Van-Det
发明人： Peter M. Robinson , Nguyen Van-Det
CPC分类号： C02F1/54 , C08F2/32 , D21H17/37 , D21H17/455
摘要： Water-in-oil emulsions of cationic water-soluble copolymers which are prepared by incorporating only a portion of the cationic monomer in the aqueous phase prior to forming the water-in-oil emulsion in which polymerization will occur, forming the emulsion, adding the balance of the cationic monomer such that essentially no polymerization occurs immediately after the addition, and polymerizing the monomers. Copolymers prepared by this process show improved performance over conventionally prepared cationic copolymers.
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公开(公告)号：US4983698A
公开(公告)日：1991-01-08
申请号：US277715
申请日：1988-11-30
申请人： Peter M. Robinson , Nguyen Van-Det
发明人： Peter M. Robinson , Nguyen Van-Det
IPC分类号： C02F11/14 , C02F1/54 , C08F2/00 , C08F2/32 , C08F20/34 , C08F20/52 , C08F220/34 , C08F220/56
CPC分类号： C08F220/34 , C02F1/54 , C08F220/56
摘要： An improved cationic water-soluble polymer is prepared from acrylamide, a cationic monomer such as dimethylaminoethyl methacrylate dimethylsulfate quaternary, and a waste stream which is produced as a result of the transesterification reaction between dialkylamino alcohols and acrylates which is used to prepare the cationic monomer. The polymers are especially useful in dewatering applications.
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公开(公告)号：US4739008A
公开(公告)日：1988-04-19
申请号：US932542
申请日：1986-11-18
申请人： Peter M. Robinson , Nguyen Van-Det
发明人： Peter M. Robinson , Nguyen Van-Det
IPC分类号： C08F2/32
CPC分类号： C08F2/32
摘要： Water-in-oil emulsions of monomers which form water-soluble polymers are polymerized in the presence of a biphase initiator system containing both an oil-soluble initiator and a water-soluble initiator or activator or alternatively a water-soluble initiator and an oil-soluble activator which results in polymers having improved performance characteristics. In addition, the system permits the satisfactory polymerization of monomers which could not have been reproducibly polymerized.
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