-
公开(公告)号：USD387415S
公开(公告)日：1997-12-09
申请号：US58203
申请日：1996-08-09
-
22.发明授权
公开(公告)号：US5035822A
公开(公告)日：1991-07-30
申请号：US410220
申请日：1989-09-21
IPC分类号： C08F220/12 , C10M149/10
CPC分类号： C08F220/12 , C10M149/10 , C10M2205/04 , C10M2209/084 , C10M2217/028 , C10M2217/06 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106
摘要： New compositions, useful as viscosity additives, having dispersing properties in various hydrocarbon oils, are disclosed, which comprise:recurrent units derived from one or more acrylic or methacrylic esters (e.g. 55-99.8% by weight),recurrent units derived from one or more nitrogenous vinyl monomers obtained by reacting triallylcyanurate with aliphatic amines or polyamines (e.g. 0.2-10% by weight), and optionallyrecurrent units derived from one or more vinyl aromatic monomers (e.g. 0-35% by weight).These copolymer compositions generally have a weight average molecular weight from 30,000 to 800,000 and a polydispersity generally lower than 5. They can be prepared by any radical copolymerization process using for example azoic or peroxydic initiators.The copolymer compositions considered are used as additives for improving the rheological properties of hydrocarbon oils. In addition, they exhibit good dispersing properties.
-
23.发明授权
公开(公告)号：US3930730A
公开(公告)日：1976-01-06
申请号：US394552
申请日：1973-09-06
摘要： An interferometric device is provided for measurement of the variations in length of a sample under the influence of temperature, the length of the sample being within a plane of reference and a plane of measurement defined by two plane terminal faces of the sample. The device comprises a source of monochromatic light, means to form parallel beams from the light source, a controllable temperature thermostatic enclosure containing a sample holder, a reflecting measurement surface joined to the plane of measurement for receiving one of the beams, a reflecting reference surface for receiving the other beam, a bearing face presented by the sample holder for the terminal reference face of the sample which is elastically applied against the bearing face, and support means for supporting the reflecting reference surface inside the enclosure and ensuring that the variation of distance between the two reflecting surfaces will always be equal to the variation in length of the sample when the temperature of the thermostatic enclosure is varied. The two beams reflected respectively by the two reflecting surfaces are caused to interfere, and a sensor observes and measures interference fringes.
摘要翻译： 提供了一种用于测量在温度影响下样品长度变化的干涉测量装置，样品在参考平面内的长度以及由样品的两个平面终端面限定的测量平面。 该装置包括单色光源，用于形成来自光源的平行光束的装置，包含样本保持器的可控温度恒温壳体，连接到用于接收一个光束的测量平面的反射测量表面，反射参考表面 为了接收另一个光束，由样品保持器提供的用于被弹性地施加到支承面上的样品的端子基准面的支承面以及用于将反射基准表面支撑在外壳内的支撑装置，并确保距离的变化 当恒温箱的温度变化时，两个反射表面之间的长度总是等于样品长度的变化。 分别由两个反射表面反射的两个光束被干扰，传感器观察并测量干涉条纹。
-
公开(公告)号：US20050011885A1
公开(公告)日：2005-01-20
申请号：US10822548
申请日：2004-04-12
申请人： Marc Seghatol , Jean-Pierre Durand
发明人： Marc Seghatol , Jean-Pierre Durand
CPC分类号： A61L2/12 , A61C5/00 , A61C5/77 , A61C13/16 , A61C13/20 , A61C13/203 , A61C13/206 , H05B6/80 , H05B2206/045
摘要： A hand-held microwave system for intra-oral dentistry utilizes microwave energy to cure polymer materials intra-orally so as to produce dental composites having improved physical characteristics, and also utilizes microwave energy to detect the presence of and to preferentially heat caries or cavities, thereby disinfecting and therapeutically treating the caries in a potentially non-invasive manner. The intra-oral polymerization process can be accomplished with less overall energy and with composite-matrices that maximally absorb the microwave energy so as to reduce heating of adjacent tissue. The antenna of a hand-held version of the intra-oral microwave system is also advantageously designed to detect the presence of and to preferentially heat caries or cavities, thereby disinfecting and therapeutically treating the caries in a potentially non-invasive manner. A method and product by process for the system are also disclosed.
摘要翻译： 用于口腔内牙科的手持式微波系统利用微波能量来固化口腔内的聚合物材料，以生产具有改善的物理特性的牙科复合材料，并且还利用微波能量来检测龋齿或空腔的存在并优先加热， 从而以潜在的非侵入性方式消毒和治疗龋齿。 口腔内聚合方法可以用更少的总能量和最大限度地吸收微波能量以减少相邻组织的加热的复合基质来实现。 口腔内微波系统的手持版本的天线还有利地被设计为检测存在并优先加热龋齿或空腔，从而以潜在的非侵入性方式消毒和治疗龋齿。 还公开了一种用于系统的方法和方法。
-
25.发明授权Process for slowing the growth and/or agglomeration and possibly retarding the formation of hydrates in a production effluent 失效用于减缓生长和/或附聚并可能延缓生产流出物中水合物形成的方法
公开(公告)号：US6093862A
公开(公告)日：2000-07-25
申请号：US129388
申请日：1998-08-05
申请人： Anne Sinquin , Marie Velly , Patrick Gateau , Jean-Pierre Durand
发明人： Anne Sinquin , Marie Velly , Patrick Gateau , Jean-Pierre Durand
CPC分类号： C10L3/00 , C09K8/52 , F17D1/005 , F17D1/05 , C09K2208/22 , Y10S585/95
摘要： A process for slowing the growth and/or agglomeration of hydrates in a fluid comprising water and gases by adding at least one essentially water-soluble polyoxyalkylene glycol macromer or at least one essentially water-soluble polymer containing a single macromer or a plurality of different macromer units of polyoxyalkylene glycol or a mixture of essentially water-soluble macromers and/or polymacromers. It is also possible to both retard the formation of hydrates and to substantially slow their growth and limit their agglomeration during crystallization by combining polyoxyalkylene glycol macromer type structures with kinetic additive type structures which are known to inhibit hydrate formation.
摘要翻译： 通过添加至少一种基本上水溶性的聚氧亚烷基二醇大分子单体或至少一种基本上含有单个大分子单体或多种不同大分子单体的基本上水溶性的聚合物来减缓包含水和气体的流体中水合物生长和/或附聚的方法 聚氧亚烷基二醇单元或基本上水溶性大分子单体和/或聚马来酸盐的混合物。 还可以通过将聚氧亚烷基二醇大分子单体型结构与已知抑制水合物形成的动力学添加剂型结构相结合来阻止水合物的形成并显着减缓其生长并限制其在结晶过程中的附聚。
-
26.发明授权Simplified process for production of alkenylsuccinimides or polyalkenylsuccinimides 失效制备链烯基琥珀酰亚胺或多烯基琥珀酰亚胺的简化方法
公开(公告)号：US5735915A
公开(公告)日：1998-04-07
申请号：US784382
申请日：1997-01-17
IPC分类号： C07C51/567 , C08F8/32 , C10L1/14 , C10L1/18 , C10L1/22 , C10L1/2383 , C10L10/00 , C10M133/56 , C10M133/16
CPC分类号： C10M133/56 , C07C51/567 , C08F8/32 , C10L1/146 , C10L1/2383 , C10L10/04 , C10L1/1985
摘要： A simplified process for preparation of an alkenylsuccinimide or a polyalkenylsuccinimide is described, characterized in that it comprises successively: a stage (a) in which an alkenylsuccinic anhydride or a polyalkenylsuccinic anhydride is prepared by bringing about an ene-synthesis reaction between at least one olefin or one polyolefin and at least one unsaturated dicarboxylic anhydride that is selected from maleic anhydride and the maleic anhydrides that are substituted by 1 or 2 methyl groups, characterized in that said reaction is carried out within at least one aromatic solvent that is selected from toluene and the xylenes that are used at a ratio of between 30 to 70% by weight of the reaction mixture and in which a fraction of said unsaturated dicarboxylic anhydride does not react with said olefin or polyolefin; a stage (b) in which the product of stage (a) that contains unsaturated, unreacted dicarboxylic anhydride is reacted with at least one alcohol or an amine; and a stage (c) in which the product that is obtained in stage (b) is reacted with an amine. These succinimides can be used as detergent additives for engine fuels and as ashless dispersing additives for engine lubricants.
摘要翻译： 描述了制备烯基琥珀酰亚胺或聚链烯基琥珀酰亚胺的简化方法，其特征在于它包括：其中通过在至少一种烯烃之间进行烯 - 合成反应来制备链烯基琥珀酸酐或聚链烯基琥珀酸酐的阶段（a） 或一种聚烯烃和至少一种选自马来酸酐和被1或2个甲基取代的马来酸酐的不饱和二羧酸酐，其特征在于所述反应在至少一种芳族溶剂中进行，所述芳族溶剂选自甲苯和 所述二甲苯以所述反应混合物的30至70重量％的比例使用，并且其中所述不饱和二羧酸酐的一部分不与所述烯烃或聚烯烃反应; 将含有不饱和的未反应的二羧酸酐的阶段（a）的产物与至少一种醇或胺反应的阶段（b） 和阶段（c），其中在阶段（b）中获得的产物与胺反应。 这些琥珀酰亚胺可用作发动机燃料的清洁剂添加剂和发动机润滑剂的无灰分散添加剂。
-
27.发明授权Copolymers usable as multifunctional additives for lubricants and lubricating compositions containing said copolymers 失效用作润滑剂的多功能添加剂和含有所述共聚物的润滑组合物的共聚物
公开(公告)号：US5366649A
公开(公告)日：1994-11-22
申请号：US76680
申请日：1993-06-15
IPC分类号： C08F8/40 , C10M157/08 , C08F220/38 , C10M157/06
CPC分类号： C08F8/40
摘要： Modified copolymers usable as additives for lubricants and having antiwear and viscosity index-improving properties are prepared by the modification of ethylene-propylene copolymers or ethylene-propylene-diene terpolymers in such a was as to fix the sulphur and phosphorus. Such modified copolymers contain 0.2 to 2% phosphorus, and 0.4 to 4% sulphur and are used in a lubricating composition at a rate of 0.25 to 10%.
摘要翻译： 通过改性乙烯 - 丙烯共聚物或乙烯 - 丙烯 - 二烯三元共聚物，可以制备用作润滑剂添加剂并具有抗磨损和粘度指数提高性能的改性共聚物，以固定硫和磷。 这种改性共聚物含有0.2〜2％的磷和0.4〜4％的硫，并以0.25〜10％的比例用于润滑组合物。
-
28.发明授权Dispersant and biodegradant formulations for treating hydrocarbon-polluted waters 失效用于处理碳氢化合物污染水的分散剂和生物降解剂制剂
公开(公告)号：US4382873A
公开(公告)日：1983-05-10
申请号：US218246
申请日：1980-12-19
CPC分类号： C02F1/682 , C02F3/34 , Y10S516/06 , Y10S516/915 , Y10S516/917 , Y10S516/918 , Y10S516/92
摘要： Dispersant and biodegradant formulations are manufactured by admixing at least one melamine derivative with at least one compound having a hydroxy function, at least one phosphorus compound and at least one surfactive agent. Aqueous emulsions obtained from these formulations are also provided.
摘要翻译： 通过将至少一种三聚氰胺衍生物与至少一种具有羟基官能团的化合物，至少一种磷化合物和至少一种表面活性剂混合来制造分散剂和生物降解剂制剂。 还提供了由这些制剂获得的水乳液。
-
29.发明授权公开(公告)号：US06237396B1
公开(公告)日：2001-05-29
申请号：US09468335
申请日：1999-12-21
IPC分类号： G01N3002
CPC分类号： G01N30/468 , G01N2030/8854
摘要： Integrated analysis process and device for characterization of hydrocarbons in a petroleum product, in distillation fractions, by simulated distillation. The hydrocarbons of a petroleum sample are characterized without fractional distillation by coupling gas chromatography (GC) with liquid chromatography (LC) techniques. GC simulated distillation (SD) is carried out. The separation column is preceded by a precolumn of the same nature but shorter. At the outlet of the main column, retention means (CT, AC) allow to collect and to store one or more light fractions that are sent each to a GC analytical column (6) allowing detailed analysis of the hydrocarbons, and one or more middle fractions. The remaining heavy fraction is collected at the precolumn outlet. The middle and heavy fractions are characterized by a combined LC-GC chromatography unit. Several interfaces allowing GC-GC-LC-GC coupling are described. The process and device can be applied for characterization of reservoir fluids or of refining process effluents for example.
摘要翻译： 通过模拟蒸馏在蒸馏馏分中表征石油产品中的烃的综合分析过程和装置。 通过气相色谱（GC）与液相色谱（LC）技术的联用，不用分馏来表征石油样品的烃类。 进行GC模拟蒸馏（SD）。 分离柱之前是相同性质但较短的前置柱。 在主塔的出口处，保留装置（CT，AC）允许收集和存储一个或多个轻馏分，每个轻馏分被送到GC分析柱（6），允许对烃的详细分析，以及一个或多个中间 分数。 剩余的重馏分在预柱出口处收集。 中间和重级分的特征是组合的LC-GC色谱单元。 描述了允许GC-GC-LC-GC耦合的几个界面。 该方法和装置可用于例如储层流体或精制工艺流出物的表征。
-
公开(公告)号：US5958844A
公开(公告)日：1999-09-28
申请号：US160289
申请日：1998-09-25
申请人： Anne Sinquin , Marie Velly , Gerard Hillion , Jean-Pierre Durand
发明人： Anne Sinquin , Marie Velly , Gerard Hillion , Jean-Pierre Durand
CPC分类号： F17D1/16 , C10L3/00 , C10L3/06 , Y10S585/95
摘要： A method of transporting hydrates suspended in a fluid comprising water, a gas and a liquid hydrocarbon is described in which at least one non-ionic amphiphilic composition obtained by reacting at least one polymerized unsaturated vegetable oil with an aminoalcohol is incorporated into the fluid. The non-ionic amphiphilic composition is generally introduced in a concentration of 0.1% to 5% by weight with respect to the water.
摘要翻译： 描述了将悬浮在包含水，气体和液态烃的流体中的水合物输送的方法，其中通过使至少一种聚合的不饱和植物油与氨基醇反应而获得的至少一种非离子两亲组合物被并入流体中。 非离子两亲性组合物通常以相对于水为0.1重量％至5重量％的浓度引入。
-
-
-
-
-
-
-
-
-
搜索结果
46 条记录 (耗时 0.02 秒)
