-
公开(公告)号：US11643491B2
公开(公告)日：2023-05-09
申请号：US17286468
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
CPC classification number: C08F220/56 , B01J19/06 , C08J3/075 , C09K8/588 , C09K8/68 , C12P13/02 , C12Y402/01084 , B01J2219/0002 , C08F2800/10 , C08F2800/20
Abstract: Process for producing aqueous polyacrylamide concentrates by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel, comminuting said aqueous polyacrylamide gel and mixing it with an aqueous liquid, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide concentrate hold in a suitable transport unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide, wherein the units of the plant are located at two different locations A and B.
-
公开(公告)号：US11634515B2
公开(公告)日：2023-04-25
申请号：US16759158
申请日：2018-10-18
Applicant: BASF SE
Inventor： Hazel Sprafke , Tobias Joachim Zimmermann , Dirk Meckelnburg , Dennis Loesch , Markus Ostermayr , Faissal-Ali El-Toufaili
IPC: C08F20/56 , C08F220/06 , C08F220/56 , C08J3/07 , C09K8/588 , E21B21/00 , E21B43/16 , E21B43/26 , C08J3/075 , C08K5/00
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. The transportable polymerization unit comprises a cylindrical upper part, a conical part at its lower end, feeds for the aqueous monomer solution, a closable bottom opening, and means allowing to deploy the polymerization unit in a vertical manner.
-
公开(公告)号：US20210347924A1
公开(公告)日：2021-11-11
申请号：US17286468
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
Abstract: Process for producing aqueous polyacrylamide concentrates by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel, comminuting said aqueous polyacrylamide gel and mixing it with an aqueous liquid, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide concentrate hold in a suitable transport unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide, wherein the units of the plant are located at two different locations A and B.
-
公开(公告)号：US09481742B2
公开(公告)日：2016-11-01
申请号：US14784305
申请日：2014-04-07
Applicant: BASF SE
Inventor： Christian Schade , Faissal-Ali El-Toufaili , Aaron Flores-Figueroa , Gledison Fonseca , Michaela Heuβler , Christian Schwede , Helmut Witteler
IPC: C08F2/00 , C08F20/06 , B01J19/00 , C08F20/00 , C08F2/01 , C08F2/10 , C08F2/16 , C08F120/06 , C08F120/14
CPC classification number: C08F20/06 , B01J19/0093 , C08F2/01 , C08F2/10 , C08F2/16 , C08F20/00 , C08F120/06 , C08F120/14
Abstract: The present invention relates to a continuous process for the manufacture of highly-branched homo- or copolymers of C3-C8 ethylenically unsaturated mono- or dicarboxylic acid as well as the anhydrides and salts thereof (monomer A) by means of free-radical polymerization of monomer A and optionally water-soluble, monethylenically unsaturated comonomers (monomer B) in an aqueous medium in the presence of at least one water-soluble initiator, wherein the polymerization takes place in at least one tubular reactor segment.
Abstract translation: 本发明涉及通过自由基聚合制备C3-C8烯键式不饱和单羧酸或二羧酸的高度支化的均聚物或共聚物以及其酸酐和其盐（单体A）的连续方法 单体A和任选的水溶性单烯属不饱和共聚单体（单体B）在水介质中，在至少一种水溶性引发剂存在下，其中聚合在至少一个管式反应器段中进行。
-
公开(公告)号：US11629205B2
公开(公告)日：2023-04-18
申请号：US16759179
申请日：2018-10-18
Applicant: BASF SE
Inventor： Hazel Sprafke , Markus Ostermayr , Tobias Joachim Zimmermann , Dirk Meckelnburg , Dennis Loesch , Faissal-Ali El-Toufaili
IPC: C08F20/56 , C08F2/01 , C08F2/10 , C08F6/00 , C08F220/06 , C08F220/56 , C08F228/02 , C08F230/02 , C09K8/88
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 process is carried out in a modular, relocatable plant. The plant preferably is deployed at a location at which aqueous polyacrylamide solutions are used, for example on an oilfield or in a mining area.
-
Patent Agency Ranking
公开(公告)号：US11384177B2
公开(公告)日：2022-07-12
申请号：US16759244
申请日：2018-10-18
Applicant: BASF SE
Inventor： Tobias Joachim Zimmermann , Faissal-Ali El-Toufaili , Hazel Sprafke
IPC: C08J3/07 , C08F20/56 , C08F220/56 , C08K5/3435 , C08K5/47 , C09K8/588 , C09K8/68 , C12P13/02 , E21B43/20 , E21B43/267 , E21B21/00
Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide obtained by hydrolyzing acrylonitrile in water in the presence of a biocatalyst capable of converting acrylonitrile to 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. The aqueous polyacrylamide gel furthermore comprises at least one stabilizer for prevention of polymer degradation.
-
公开(公告)号：US20150065677A1
公开(公告)日：2015-03-05
申请号：US14016504
申请日：2013-09-03
Applicant: BASF SE
Inventor： Faissal-Ali El-Toufaili , Achim Stammer , Siimon Gramlich , Angela Ulzhöfer
IPC: C08G75/23
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。
-
公开(公告)号：US20140350213A1
公开(公告)日：2014-11-27
申请号：US13934849
申请日：2013-07-03
Applicant: BASF SE
Inventor： Faissal-Ali El-Toufaili , Achim Stammer , Jens Becker , Karsten Daunke , Thomas Sauer
IPC: C08G69/16
Abstract: The present invention relates to a process for purifying polyamide particles wherein these are contacted with a lactam-containing treatment medium with or without a gaseous treatment medium.
Abstract translation: 本发明涉及一种纯化聚酰胺颗粒的方法，其中这些方法与含有或不含气态处理介质的含内酰胺处理介质接触。
-
9.发明申请PREPARATION OF POLYAMIDES BY HYDROLYTIC POLYMIERIZATION AND MULTIPLE EXTRACTION 审中-公开通过水解聚合和多次提取制备聚酰胺公开(公告)号：US20140256887A1
公开(公告)日：2014-09-11
申请号：US14199436
申请日：2014-03-06
Applicant: BASF SE
Inventor： Gad Kory , Silke Biedasek , Faissal-Ali El-Toufaili , Achim Stammer , Reinhard Lang , Dirk Meckelnburg
IPC: C08G69/48
Abstract: The present invention relates to a process for preparing polyamides, comprising a hydrolytic polymerization and at least two extraction steps which are not in immediate succession.
Abstract translation: 本发明涉及一种制备聚酰胺的方法，包括水解聚合和至少两个不直接连续提取步骤。
-
公开(公告)号：US11725102B2
公开(公告)日：2023-08-15
申请号：US17286477
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 , Daniel Barrera-Medrano
CPC classification number: C08L33/26 , C09K8/588 , E21B43/162
Abstract: Process of providing polyacrylamides to a site-of-use comprising at least the steps of mixing a polyacrylamide powder at a manufacturing site with an aqueous liquid, thereby obtaining a homogeneous aqueous polyacrylamide concentrate, transporting said concentrate in a transport unit from the manufacturing site to the site-of-use, and removing the homogeneous aqueous concentrate from the transport unit at the site-of-use. Process of treating subterranean, oil and/or gas bearing formations by injecting an aqueous treatment fluid into at least one wellbore, wherein the aqueous treatment fluid is manufactured by mixing at least an aqueous base fluid with said homogeneous aqueous polyacrylamide concentrate at the site-of-use.
-
-
-
-
-
-
-
-
-
Search Results
24
records
(took 0.016 seconds)
