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公开(公告)号：US11608468B2
公开(公告)日：2023-03-21
申请号：US17286469
申请日：2019-10-17
Applicant: BASF SE
Inventor： Faissal-Ali El-Toufaili , Dennis Loesch , Anna-Corina Schmidt , Tobias Joachim Zimmermann , Markus Ostermayr , Jack F. Tinsley , Brent Busby
IPC: C09K8/68 , E21B43/267 , C09K8/88 , E21B15/00
Abstract: Process of fracturing subterranean, oil-and/or gas-bearing formations by injecting an aqueous fracturing fluid into a wellbore at a rate and pressure sufficient to penetrate into the formation, and to initiate or extend fractures in the formation, wherein the aqueous fracturing fluid is obtained by mixing at least an aqueous base fluid and an aqueous polyacrylamide concentrate having a concentration of 3.1 to 14.9% by weight of polyacrylamides, relating to the total of all components of the aqueous polyacrylamide concentrate, and wherein at least a part of the aqueous fracturing fluid injected additionally comprises a proppant.
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公开(公告)号：US20160340509A1
公开(公告)日：2016-11-24
申请号：US15113854
申请日：2015-01-26
Applicant: BASF SE
Inventor： Christian Schmidt , Florian Richter , Joachim Clauss , Andreas Wollny , Philippe Desbois , Faissal-Ali El-Toufaili , Achim Stammer , Stefan Schwiegk
CPC classification number: C08L77/06 , C08K7/14 , C08L23/0869 , C08L77/02
Abstract: The present invention relates to the use of polyolefin copolymers A) for reducing color changes during the heating of polymer compositions which contain at least one thermoplastic polyamide B).
Abstract translation: 本发明涉及聚烯烃共聚物A）在加热包含至少一种热塑性聚酰胺B）的聚合物组合物期间减少颜色变化的用途。
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公开(公告)号：US09045598B2
公开(公告)日：2015-06-02
申请号：US14016504
申请日：2013-09-03
Applicant: BASF SE
Inventor： Faissal-Ali El-Toufaili , Achim Stammer , Simon Gramlich , Angela Ulzhöfer
Abstract: The process for producing aromatic polyether sulfones via reaction of a dichlorodiphenyl sulfone component with a bisphenol component as monomers in the presence of alkali metal carbonate in the melt in the absence of solvents and diluents comprises carrying out the reaction in a mixing kneader which is operated with a shear rate in the range from 5 to 500 s−1.
Abstract translation: 在不存在溶剂和稀释剂的情况下，在熔融物中，在碱金属碳酸盐存在下，通过二氯二苯基砜组分与双酚组分作为单体的反应制备芳族聚醚砜的方法包括在混合捏合机中进行反应，该混合捏合机与 剪切速率在5至500s -1范围内。
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14.发明申请公开(公告)号：US20130253089A1
公开(公告)日：2013-09-26
申请号：US13787949
申请日：2013-03-07
Applicant: BASF SE
Inventor： Faissal-Ali El-Toufaili , Michaela Heussler , Christian Schwede , Aaron Flores-Figueroa , Rainer Dobrawa , Dieter Boeckh , Wolfgang Loth , Gerd Konrad
IPC: C08F2/01
CPC classification number: C08F2/01 , C08F283/06 , C08F218/08
Abstract: The invention relates to a continuous process for the preparation of amphiphilic graft polymers, wherein a vinyl ester component (B) composed of vinyl acetate and/or vinyl propionate (B1) and, if desired, a further ethylenically unsaturated monomer (B2), is polymerized in the presence of a polyalkylene oxide (A), a free radical-forming initiator (C) and, if desired, an additive (D), at a mean polymerization temperature at which the initiator (C) has a decomposition half-time of from 1 to 500 min, in at least one tubular reactor segment with a feed side and an outlet side, through which the reaction mixture comprising at least a part of component (A) to (C), and if desired (D), streams, a tubular reactor segment and the use of the inventive amphiphilic graft polymer. The invention further relates to an inventive amphiphilic graft polymer and the use thereof.
Abstract translation: 本发明涉及制备两亲性接枝聚合物的连续方法，其中由乙酸乙烯酯和/或丙酸乙烯酯（B1）组成的乙烯基酯组分（B）和如果需要，另外的烯键式不饱和单体（B2）是 在聚亚烷基氧化物（A），自由基形成引发剂（C）和根据需要的情况下，在引发剂（C）具有分解半衰期的平均聚合温度下，如果需要，添加剂 在至少一个具有进料侧和出口侧的管状反应器段中，反应混合物通过该混合物至少包含组分（A）至（C）和（如果需要的话）（D）， 流，管式反应器段和本发明的两亲接枝聚合物的用途。 本发明还涉及本发明的两亲性接枝聚合物及其用途。
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公开(公告)号：US11739167B2
公开(公告)日：2023-08-29
申请号：US16759233
申请日：2018-10-18
Applicant: BASF SE
Inventor： Faissal-Ali El-Toufaili , Joerg Unger
CPC classification number: C08F2/01 , C08F2/10 , C08F20/56 , C08J3/075 , C08J2333/26 , C08F220/06 , C08F220/56 , C08F220/34
Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide solutions wherein the units of the plant are located at two different locations A and B.
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Patent Agency Ranking
公开(公告)号：US11634516B2
公开(公告)日：2023-04-25
申请号：US16759223
申请日：2018-10-18
Applicant: BASF SE
Inventor： Dennis Loesch , Tobias Joachim Zimmermann , Hazel Sprafke , Dirk Meckelnburg , Markus Ostermayr , Faissal-Ali El-Toufaili
Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide solutions wherein the units of the plant are located at two different locations A and B.
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公开(公告)号：US10927222B2
公开(公告)日：2021-02-23
申请号：US16096515
申请日：2017-04-20
Applicant: BASF SE
Inventor： Sandra Jeck , Oliver Soetje , Tobias Bringmann , Gabriela Eugenia Fonseca Zepeda , Dirk Meckelnburg , Dennis Loesch , Bjoern Langlotz , John Barratt , Faissal-Ali El-Toufaili , Hazel Sprafke , Bernd Schube , Markus Ostermayr
IPC: C08J3/05 , B01F5/02 , B01F5/04 , B01F5/20 , B01F7/00 , C08F220/04 , C08F220/56 , B01F3/12 , B01F1/00 , C08F2/10 , B01F5/00
Abstract: A process for producing an aqueous polymer solution, including: (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer contains at least 10% by weight active polymer; (b) cutting the hydrated polymer by subjecting the hydrated polymer to at least one cutting stage containing at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer; and (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution. An apparatus for producing an aqueous polymer solution.
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公开(公告)号：US20190300657A1
公开(公告)日：2019-10-03
申请号：US16317128
申请日：2017-07-10
Applicant: BASF SE
Inventor： Faissal-Ali El-Toufaili , Timo Laubscher , Juergen Detering , Martin Keller , Ines Debeasuvais De Vasconcelos , Dominik Lanzinger
Abstract: Described herein is a process for preparing solid acrylic acid polymers including: (a) preparing an aqueous acrylic acid polymer solution having a solids content of 30% to 70% by weight by free-radical polymerization, (b) neutralizing the aqueous acrylic acid polymer solution at least partly by adding a base, which results in release of a heat of neutralization, and concentrating the aqueous acrylic acid polymer solution by exploiting the heat of neutralization to give a highly concentrated acrylic acid polymer solution having a solids content of 60% to 80% by weight, (c) shaping and drying the highly concentrated acrylic acid polymer solution.
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公开(公告)号：US09534083B2
公开(公告)日：2017-01-03
申请号：US14016520
申请日：2013-09-03
Applicant: BASF SE
Inventor： Achim Stammer , Faissal-Ali El-Toufaili , Simon Gramlich , Angela Ulzhöfer
Abstract: In a process for producing polyamides by polycondensation of polycondensable polyamide-forming monomers and/or oligomers in reaction mixtures comprising same, which may be water-containing but are free from organic solvents, the polycondensation is effected in an agitated reactor under agitation in a first step in the liquid phase and after a phase change taking place during the process in the same reactor is effected in a subsequent second step in the solid state, wherein the temperature in the reactor is below the melting point of the polyamide in the second step at least.
Abstract translation: 在通过可缩聚聚酰胺形成单体和/或低聚物在包含它们的反应混合物（其可以是含水但不含有机溶剂）中缩聚制备聚酰胺的方法中，在搅拌反应器中在第一 步骤在液相中，并且在相同反应器中的相变期间发生在固态的随后的第二步骤中，其中反应器中的温度低于第二步中聚酰胺的熔点 最小。
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公开(公告)号：US09428613B2
公开(公告)日：2016-08-30
申请号：US14092071
申请日：2013-11-27
Applicant: BASF SE
Inventor： Rolf-Egbert Grützner , Shankara Narayanan Keelapandal Ramamoorthy , Faissal-Ali El-Toufaili , Achim Gerstlauer , Achim Stammer
Abstract: Process for producing polyamides that are stable during processing, by treating the polyamide during the solid-phase postcondensation process with a gas which comprises carrier gas (inert gas), water, and acid, or an anhydride or lactone or a mixture of these or, respectively, comprises ammonia, or amine, or a mixture of these, at a temperature from 130 to 200° C. and at a pressure of from 0.01 to 10 bar.
Abstract translation: 用于制备在加工过程中稳定的聚酰胺的方法，通过在固相缩聚过程中用包含载气（惰性气体），水和酸的酸性物质或其酸酐或内酯或其混合物的气体处理聚酰胺， 分别包含氨或胺，或它们的混合物，温度为130-200℃，压力为0.01至10巴。
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