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1.发明授权
公开(公告)号：US4629566A
公开(公告)日：1986-12-16
申请号：US738204
申请日：1985-05-24
CPC分类号： G01N30/74 , G01N2030/001 , G01N2030/027 , G01N2030/625 , G01N30/38 , G01N33/44
摘要： The molecular weight and molecular weight distribution of diverse ultra-high molecular weight water soluble polymers is rapidly determined based on apparent size by passage of extremely dilute samples of the polymer (1-250 ppm) through a column of nonporous packing whereby separation into molecular weight (apparent size) fractions is obtained predominantly based on flow (i.e., hydrodynamic chromatography). Detection of the extremely dilute sample polymer is accomplished, e.g., by tagging the polymer with a fluorescent agent and using a flow-through fluorometer detector. The molecular weight characterization of the polymers is determined independent or less dependent of the composition of the polymer by analyzing the sample in its nonionized form.
摘要翻译： 不同的超高分子量水溶性聚合物的分子量和分子量分布通过通过非常稀释的聚合物样品（1-250ppm）通过无孔填料柱，基于表观尺寸快速测定，由此分离成分子量 （表观尺寸）馏分主要基于流动（即流体动力学色谱法）获得。 非常稀的样品聚合物的检测例如通过用荧光剂标记聚合物并使用流通荧光计检测器来完成。 通过以非离子形式分析样品，聚合物的分子量表征独立地或较少地依赖于聚合物的组成。
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公开(公告)号：US4532043A
公开(公告)日：1985-07-30
申请号：US523818
申请日：1983-08-15
CPC分类号： G01N30/74 , G01N2030/001 , G01N2030/027 , G01N2030/625 , G01N30/38 , G01N33/44
摘要： The molecular weight and molecular weight distribution of diverse ultra-high molecular weight water soluble polymers is rapidly determined based on apparent size by passage of extremely dilute samples of the polymer (1-250 ppm) through a column of nonporous packing whereby separation into molecular weight (apparent size) fractions is obtained predominantly based on flow (i.e., hydrodynamic chromatography). Detection of the extremely dilute sample polymer is accomplished, e.g., by tagging the polymer with a fluorescent agent and using a flow-through fluorometer detector. The molecular weight characterization of the polymers is determined independent or less dependent of the composition of the polymer by analyzing the sample in its nonionized form.
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公开(公告)号：US4524175A
公开(公告)日：1985-06-18
申请号：US600879
申请日：1984-04-16
IPC分类号： C08L33/26 , C08F2/00 , C08F2/32 , C08F20/00 , C08F20/52 , C08F220/56 , C08J3/09 , C08L33/00 , C08L33/24 , C08K5/05 , C08K5/06
摘要： A stable water-in-oil emulsion of a hydrophobe associative copolymer of a water-soluble monomer such as acrylamide and a hydrophobic monomer such as dodecyl methacrylate is formed by subjecting a water-in-oil emulsion of the corresponding monomers to copolymerization conditions in the presence of an oil-soluble initiator such as cumene hydroperoxide. Such copolymers associate in aqueous media containing salts such as sodium chloride to increase the viscosity of such media.
摘要翻译： 水溶性单体如丙烯酰胺和疏水性单体如甲基丙烯酸十二烷基酯的疏水缔合共聚物的稳定的油包水乳液通过使相应单体的油包水乳液经受在 存在油溶性引发剂如氢过氧化枯烯。 这种共聚物在含有盐如氯化钠的水性介质中缔合，以增加这种介质的粘度。
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4.发明授权
公开(公告)号：US4833198A
公开(公告)日：1989-05-23
申请号：US757237
申请日：1985-07-22
IPC分类号： C08F2/32
CPC分类号： C08F2/32
摘要： A suspending agent useful in a water-in-oil suspension polymerization process comprises a fumed silica particulate having a hydrophobic character and a hydrophobic polymer. The suspending agent is useful in providing uniformly sized aqueous fluid absorbent polymer beads.
摘要翻译： 可用于油包水悬浮聚合方法的悬浮剂包括具有疏水性的热解法二氧化硅颗粒和疏水性聚合物。 悬浮剂可用于提供均匀尺寸的水性流体吸收聚合物珠粒。
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5.发明授权
公开(公告)号：US4708997A
公开(公告)日：1987-11-24
申请号：US839652
申请日：1986-03-14
IPC分类号： C08F2/32
CPC分类号： C08F2/32
摘要： A suspending agent useful in a water-in-oil suspension polymerization process comprises a fumed silica particulate having a hydrophobic character and a hydrophobic polymer. The suspending agent is useful in providing uniformly sized aqueous fluid absorbent polymer beads.
摘要翻译： 可用于油包水悬浮聚合方法的悬浮剂包括具有疏水性的热解法二氧化硅颗粒和疏水性聚合物。 悬浮剂可用于提供均匀尺寸的水性流体吸收聚合物珠粒。
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公开(公告)号：US4390659A
公开(公告)日：1983-06-28
申请号：US158095
申请日：1980-06-10
CPC分类号： C08F8/44
摘要： Quaternary carboxamide polymers such as N-(triethylammonium ethyl)acrylamide chloride are prepared by simultaneously contacting a carboxamide polymer with an aldehyde such as formaldehyde, a secondary amine such as dimethylamine and a quaternizing agent such as methyl chloride. By such method, quaternary carboxamide polymers useful in a variety of applications such as emulsion breaking and water clarification are readily prepared.
摘要翻译： 通过同时使甲酰胺聚合物与醛如甲醛，仲胺如二甲胺和季铵化剂如甲基氯同时接触来制备季铵甲酰胺聚合物如N-（三乙基铵乙基）丙烯酰胺氯化物。 通过这种方法，可以容易地制备可用于各种应用如季铵甲酰胺聚合物，如乳液破乳和水澄清。
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公开(公告)号：US4331787A
公开(公告)日：1982-05-25
申请号：US174295
申请日：1980-07-31
CPC分类号： C08F2/32
摘要： Water-miscible monomers such as acrylamide are polymerized continuously to produce a concentrated solution of a high molecular weight polymer by passing a mixture of a water-immiscible organic liquid and an aqueous solution of at least 20 weight percent of the monomer through a tubular reactor, e.g., a polyethylene tube, having internal surfaces that are readily wetted by the hydrocarbon liquid and polymerizing the monomer in the reactor. The polymerized product is recovered as a water-in-oil emulsion wherein the polymer resides in the dispersed aqueous phase or as a solid strand which is a high solids aqueous solution containing at least 20 weight percent of the water-soluble polymer of the water-miscible monomer.
摘要翻译： 水混溶性单体如丙烯酰胺被连续聚合，以通过使水不混溶的有机液体和至少20重量％的单体的水溶液的混合物通过管式反应器产生高分子量聚合物的浓缩溶液， 例如聚乙烯管，其内表面容易被烃液体润湿并在反应器中聚合单体。 聚合产物作为油包水乳状液回收，其中聚合物位于分散的水相中，或作为固体链，其是含有至少20重量％的水溶性聚合物的高固含量水溶液， 可混溶单体
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