公开(公告)号：US4785036A

公开(公告)日：1988-11-15

申请号：US54655

申请日：1987-05-27

申请人： Peter M. Robinson ,  Philip D. Raby ,  Nguyen Van-Det

发明人： Peter M. Robinson ,  Philip D. Raby ,  Nguyen Van-Det

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。

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。

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。

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

IPC分类号： C02F1/54 ,  C08F2/32 ,  D21H17/37 ,  D21H17/45

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.

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.

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.

公开(公告)号：US4339373A

公开(公告)日：1982-07-13

申请号：US119232

申请日：1980-02-06

申请人： Peter M. Robinson

发明人： Peter M. Robinson

IPC分类号： C08J3/16 ,  C08J3/12 ,  C08K5/01

CPC分类号： C08J3/124 ,  C08J2300/14

摘要： Polymeric soaps prepared from copolymers of hydrophobic monomers and hydrophilic monomers are useful as granulation and/or drying aids for polymeric gels, especially those gels of polyacrylamide.

摘要翻译： 由疏水性单体和亲水性单体的共聚物制备的聚合物皂可用作聚合凝胶，特别是聚丙烯酰胺凝胶的造粒和/或干燥助剂。

公开(公告)号：US4145495A

公开(公告)日：1979-03-20

申请号：US909320

申请日：1978-05-24

申请人： Peter M. Robinson ,  Michael W. C. Coville ,  Robin W. Dexter

发明人： Peter M. Robinson ,  Michael W. C. Coville ,  Robin W. Dexter

IPC分类号： C08F2/10 ,  C08F4/40 ,  C08F2/16 ,  C08F220/22

CPC分类号： C08F2/10 ,  C08F4/40 ,  Y10S526/923

摘要： Addition of a chelating agent and an chelatable inert cation species overcomes the inhibiting effects of impurity chelatable cation species present in an aqueous polymerization medium containing a redox system comprising an oxidizing agent and a chelatable metal reducing agent.

摘要翻译： 添加螯合剂和可螯合的惰性阳离子物质克服了含有包含氧化剂和可螯合金属还原剂的氧化还原体系的水性聚合介质中存在的杂质可螯合阳离子的抑制作用。