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公开(公告)号：US11447713B2
公开(公告)日：2022-09-20
申请号：US17042208
申请日：2019-03-19
Applicant: BASF SE
Inventor： Anna Maria Mueller-Cristadoro , Edward Bohres , Stefan Frenzel , Xiao Fu , Felix Alexander Westerhaus , Tina Noack , Radoslaw Kierat
IPC: C10M145/22 , C08G83/00 , C10M169/04 , C08G63/664 , C10N20/00 , C10N30/02
Abstract: The invention relates to a method for the preparation of a hyperbranched polyester mixture obtainable by reacting a hydroxyl group containing carboxylic acid (B) with at least one carboxylic acid group and at least two hydroxyl groups with a diol (C) having a molecular weight of more than 100 g/mol, optionally in the presence of at least one further reactant, wherein the at least one further reactant is a polyol (A) having at least three hydroxyl groups under a reaction condition allowing ester and ether formation; and reacting the mixture resulting from step (a) with a hydrophobic carboxylic acid (D) resulting in the hyperbranched polyester mixture. The invention further relates to said hyperbranched polyester mixture and the use as wax inhibitor, as pour point depressant, as lubricant or in lubricating oils.
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公开(公告)号：US20150285027A1
公开(公告)日：2015-10-08
申请号：US14436326
申请日：2013-12-20
Applicant: BASF SE
Inventor： Shane Mc Donnell , Oscar Lafuente Cerda , Burkhard Walther , Radoslaw Kierat
CPC classification number: E21B33/14 , C08G18/3895 , C08G18/792 , C08G18/798 , C09K8/508 , C09K8/5086 , C09K8/5755
Abstract: Described herein is a novel method of strengthening a wellbore wherein the method uses a polyurea silicate composition. In the method of strengthening an oil well, a gas well or a water well, a mixture comprising at least one isocyanate component having at least two isocyanate groups per molecule; at least one alkali metal silicate; and water is pumped through the oil well, the gas well or the water well into the annulus of the well; subsequently, the mixture is allowed to form a polyurea silicate composition; before the polyurea silicate composition sets to thereby give a polyurea matrix comprising domains of silicate.
Abstract translation: 本文描述了一种加强井筒的新方法，其中该方法使用聚脲硅酸盐组合物。 在加强油井，气井或水井的方法中，包含至少一种每分子具有至少两个异氰酸酯基团的异氰酸酯组分的混合物; 至少一种碱金属硅酸盐; 水通过油井，气井或水井进入井的环空; 随后，使混合物形成聚脲硅酸盐组合物; 在聚脲硅酸盐组合物组合之前，由此得到包含硅酸盐畴的聚脲基质。
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公开(公告)号：US20250043065A1
公开(公告)日：2025-02-06
申请号：US18713905
申请日：2022-11-21
Applicant: BASF SE
IPC: C08G59/50 , C07C209/52 , C07C211/14 , C07D243/08
Abstract: Aliphatic polyamines with methyl substituents are used in the curing of epoxy resins. The preparation of such aliphatic polyamines is described. Corresponding epoxy resin compositions include an epoxy resin and the aliphatic polyamines as curing agents. These curing agents combine comparably rapid curing at moderately elevated temperatures with comparably long pot life at room temperature. At the same time, they allow for cured epoxy resins with good mechanical properties and high glass transition temperature.
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公开(公告)号：US10214676B2
公开(公告)日：2019-02-26
申请号：US15551086
申请日：2016-02-24
Applicant: BASF SE
Inventor： Peter Leidinger , Radoslaw Kierat , Bernhard Feichtenschlager , Kristina Brandt
IPC: E21B33/13 , C09K8/467 , C04B28/02 , C04B20/10 , C09K8/03 , C04B16/06 , C04B22/00 , C04B28/04 , E21B33/14
Abstract: The present invention relates to the use of modified fibers in oilfield applications, particularly in borehole cementing. Said fibers have crystallization seeds attached to their surfaces thereby improving the mechanical strength and ductility of borehole cements.
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公开(公告)号：US09688864B2
公开(公告)日：2017-06-27
申请号：US14902255
申请日：2014-06-10
Applicant: BASF SE
Inventor： Bernhard Feichtenschlager , Radoslaw Kierat , Christian Buchner
IPC: C08K5/29 , C09D5/02 , B01F17/00 , C09D101/02 , C09D123/12 , C09D129/04 , C09D167/04 , C08K5/01
CPC classification number: C09D5/027 , B01F17/0042 , B01F17/005 , C08K5/01 , C08K5/29 , C08K2201/018 , C09D101/02 , C09D123/12 , C09D129/04 , C09D167/04
Abstract: A pumpable shelf-stable suspension of fibers in an organic phase comprising 1.0-60 wt % of fibers and 0.01-10 wt % of a disubstituted urea is proposed as well as a method using the disubstituted urea to suspend fibers in an organic phase.
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Patent Agency Ranking
公开(公告)号：US20230249197A1
公开(公告)日：2023-08-10
申请号：US18015645
申请日：2021-08-10
Applicant: BASF SE
Inventor： Alexej Michailovski , Gabriela Budemberg , Bettina Sobotka , Radoslaw Kierat
IPC: B03D1/01
CPC classification number: B03D1/01 , B03D2201/02 , B03D2203/04
Abstract: Described herein are methods for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by a reverse flotation. The method includes adding a first amine to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. The first amine (A) may be a compound of formula I
a salt of a protonated compound of formula I and a first anion or a mixture thereof. A second amine, which is a compound of formula II
a salt of a protonated compound of formula II and a second anion or a mixture thereof, can be further added. Further described herein are specific compositions of the first amine (A) and the second amine (B) for a use as a flotation collector.-
公开(公告)号：US10982132B2
公开(公告)日：2021-04-20
申请号：US16311015
申请日：2017-06-14
Applicant: BASF SE
Inventor： Edward Bohres , Radoslaw Kierat , Stephan Schunk , Carlos Lizandara Pueyo , Sven Titlbach , Robert Mueller , Michael Ludwig Lejkowski
Abstract: Method of fracturing a subterranean formation by injecting an aqueous fracturing fluid comprising an aqueous base fluid, a polysaccharide and/or polysaccharide derivative, a crosslinker, which is a water-soluble, layered silicate and a proppant. Aqueous fracturing fluid comprising an aqueous base fluid, a polysaccharide and/or polysaccharide derivative, a crosslinker, which is a water-soluble, layered silicate and a proppant and to the use of water-soluble, layered silicates as crosslinker for aqueous fracturing fluids comprising polysaccharides and/or polysaccharide derivatives.
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公开(公告)号：US20240002609A1
公开(公告)日：2024-01-04
申请号：US18254857
申请日：2021-11-22
Applicant: BASF SE
Inventor： Oliver GRONWALD , Radoslaw Kierat , Tatjana Huber
CPC classification number: C08J3/096 , C08L81/06 , B01D67/0016 , B01D67/0081 , B01D2325/30 , B01D2221/12 , B01D2323/21823 , B01D2323/2187 , B01D2325/24 , B01D71/68
Abstract: A solution contains at least one sulfone polymer and N-tert.-butyl-2-pyrrolidone. The solution can be used in a process of making a membrane, which is useful for water treatment.
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公开(公告)号：US11008256B2
公开(公告)日：2021-05-18
申请号：US16094557
申请日：2017-04-07
Applicant: BASF SE
Inventor： Radoslaw Kierat , Michael Klemens Mueller , Andreas Kempter , Oscar Lafuente Cerda , Kai Bergner
IPC: B05D7/00 , B32B5/16 , C04B20/10 , C04B28/02 , C04B40/06 , C04B22/06 , C04B111/00 , C04B111/34 , C04B111/60 , C04B111/70 , C04B111/72 , C04B111/62 , C04B111/28
Abstract: The invention relates to a process for preparing silica-coated particles of an inorganic expanding agent, the silica-coated particles and their use. The silica-coated particles show a delayed release of the expanding agent particularly in alkaline medium and at elevated temperatures. They are therefore useful in the oil and construction industry.
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公开(公告)号：US10781353B2
公开(公告)日：2020-09-22
申请号：US15576967
申请日：2016-05-13
Applicant: BASF SE
Inventor： Radoslaw Kierat , Bernhard Feichtenschlager , Julia Göschel , Hendrik Wagner
IPC: E21B33/138 , C09K8/035 , C04B26/14 , C04B26/16 , C08G18/10 , C08G18/30 , C08G18/36 , C09K8/44 , C08G18/22 , C08G18/79 , E02D37/00 , C09J175/04 , C08G59/68 , C09K8/58 , C09K8/00 , C08G18/42 , C08G18/80 , C08G18/00 , C09K3/22 , C08L63/00 , C09K17/30 , C08G18/48 , C09K17/00 , C04B14/36 , C08G18/58 , C08G18/64 , C08G18/76 , C09K8/588 , E21B21/00 , E21D9/00 , C04B111/00 , E21B43/16
Abstract: The present invention relates to the use of a composition for stabilizing a geological formation in oil fields, gas fields, water pumping fields, mining or tunnel constructions. The composition has a hardening temperature in the range from about 40° C. to about 120° C. and can therefore be used to stabilize a geological formation in oil fields, gas fields, water pumping fields as well as in mining or tunnel constructions.
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