Patents by Inventor Radoslaw Kierat

Radoslaw Kierat has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200317994
    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.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 8, 2020
    Inventors: Edward BOHRES, Radoslaw KIERAT, Stephan SCHUNK, Carlos LIZANDARA PUEYO, Sven TITLBACH, Robert MUELLER, Michael Ludwig LEJKOWSKI
  • Publication number: 20200299202
    Abstract: Coated inorganic expanding agent particles comprise a core of an inorganic expanding agent and a sol/gel-formed coating comprising a mixed oxide of two or more metals and/or metalloids, in particular a mixed oxide of silicon and at least one metal and/or metalloid selected from aluminum, boron, titanium, zirconium and zinc. The coated inorganic expanding agent particles are added to cementitious systems to avoid shrinkage during hardening. The coating is effective to delay the expanding effect.
    Type: Application
    Filed: September 25, 2018
    Publication date: September 24, 2020
    Applicant: BASF SE
    Inventors: Sung Yeun CHOI, Kai BERGNER, Radoslaw KIERAT, Michael Klemens MUELLER
  • Patent number: 10781353
    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.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: September 22, 2020
    Assignee: BASF SE
    Inventors: Radoslaw Kierat, Bernhard Feichtenschlager, Julia Göschel, Hendrik Wagner
  • Publication number: 20200231752
    Abstract: The present invention relates to a process for preparing an amidoamine by reacting a triacid derivative (I) with at least one amine (A), the at least one amine (A) being selected from the group consisting of diethylenetriamine and a diamine (II). The molar ratio of the triacid derivative (I) to the at least one amine (A) is in the range from 1:2 to 1:<3. The present invention further relates to the amidoamine as such and also to the use of the amidoamine of the invention as a crosslinker.
    Type: Application
    Filed: September 7, 2016
    Publication date: July 23, 2020
    Inventors: Sophie PUTZIEN, Olivier FLEISCHEL, Bend BRUCHMANN, Andreas KÜNKEL, Radoslaw KIERAT, Rolf MÜLHAUPT, Matteo GIGLI
  • Publication number: 20190119161
    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.
    Type: Application
    Filed: April 7, 2017
    Publication date: April 25, 2019
    Inventors: Radoslaw KIERAT, Michael Klemens MUELLER, Andreas KEMPTER, Oscar LAFUENTE CERDA, Kai BERGNER
  • Patent number: 10214676
    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.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: February 26, 2019
    Assignee: BASF SE
    Inventors: Peter Leidinger, Radoslaw Kierat, Bernhard Feichtenschlager, Kristina Brandt
  • Patent number: 10065887
    Abstract: Fibers with crystallization seeds attached to its surface, method of making such composite fibers by surface treatment of fibers followed by either treating such fibers with premade crystallization seeds or by precipitation and direct crystallization of seeds onto pretreated fibers. Controlling and tuning the properties of inorganic binder compositions with fiber-bound crystallization seeds and thereby generating inorganic binder compositions with tailor-made characteristics.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: September 4, 2018
    Assignee: Construction Research & Technology, GmbH
    Inventors: Radoslaw Kierat, Bernhard Feichtenschlager, Christoph Hesse, Dunja Hirsemann
  • Publication number: 20180148624
    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.
    Type: Application
    Filed: May 13, 2016
    Publication date: May 31, 2018
    Inventors: Radoslaw KIERAT, Bernhard FEICHTENSCHLAGER, Julia GÖSCHEL, Hendrik WAGNER
  • Publication number: 20180022980
    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.
    Type: Application
    Filed: February 24, 2016
    Publication date: January 25, 2018
    Inventors: Peter LEIDINGER, Radoslaw KIERAT, Bernhard FEICHTENSCHLAGER, Kristina BRANDT
  • Publication number: 20170217835
    Abstract: The present invention relates to stretched polyolefin fibers comprising a polymer comprising at least one polymeric modifier selected from olefinic polymers modified with an acid and/or an acid anhydride, the use of these fibers in the reinforcement of cementitious compositions, and cementitious composition containing these fibers.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 3, 2017
    Inventors: Jing CUI, Bernhard FEICHTENSCHLAGER, Radoslaw KIERAT, Alexander KRAUS, Roger REINICKER, Emmanuel ATTIOGBE
  • Patent number: 9688864
    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.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: June 27, 2017
    Assignee: BASF SE
    Inventors: Bernhard Feichtenschlager, Radoslaw Kierat, Christian Buchner
  • Publication number: 20160194245
    Abstract: Fibers with crystallization seeds attached to its surface, method of making such composite fibers by surface treatment of fibers followed by either treating such fibers with premade crystallization seeds or by precipitation and direct crystallization of seeds onto pretreated fibers. Controlling and tuning the properties of inorganic binder compositions with fiber-bound crystallization seeds and thereby generating inorganic binder compositions with tailor-made characteristics.
    Type: Application
    Filed: August 21, 2014
    Publication date: July 7, 2016
    Applicant: Construction Research & Technology GMBH
    Inventors: Radoslaw KIERAT, Bernhard FEICHTENSCHLAGER, Christoph HESSE, Dunja HIRSEMANN
  • Publication number: 20150285027
    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.
    Type: Application
    Filed: December 20, 2013
    Publication date: October 8, 2015
    Inventors: Shane Mc Donnell, Oscar Lafuente Cerda, Burkhard Walther, Radoslaw Kierat
  • Publication number: 20140228583
    Abstract: 2-Oxo-1,3-dioxolane-4-carboxylic acid and derivatives thereof, according to the following formula, in which R1 represents a negative charge, hydrogen or may be methyl or ethyl or an n-valent radical, which may be substituted with at most n?1 further 2-oxo-1,3-dioxolane-4-carboxyl groups, as well as a process for their preparation by means of carboxylation of the corresponding epoxides, a process for their transesterification and their use for the preparation of hydroxyurethanes and as end groups for the blocking of amines.
    Type: Application
    Filed: April 16, 2014
    Publication date: August 14, 2014
    Applicant: Construction Research & Technology GmbH
    Inventors: Joanna MECFEL-MARCZEWSKI, Burkhard WALTHER, Jochen MEZGER, Radoslaw KIERAT, Rosita STAUDHAMER
  • Patent number: 8742137
    Abstract: Proposed are 2-oxo-1,3-dioxolane-4-carboxylic acid and derivatives thereof, according to the following formula, in which R1 represents a negative charge, hydrogen or can be preferably Me or Et or a radical having a valency of 2 to 5, which is substituted with an amount of further 2-oxo-1,3-dioxolane-4-carboxyl groups equal to the radical valency minus 1, as well as a process for their preparation by means of carboxylation of the corresponding epoxides, a process for their transesterification and their use for the preparation of hydroxyurethanes and as end groups for the blocking of amines.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: June 3, 2014
    Assignee: Construction Research & Technology GmbH
    Inventors: Joanna Mecfel-Marczewski, Burkhard Walther, Jochen Mezger, Radoslaw Kierat, Rosita Staudhamer
  • Publication number: 20110313177
    Abstract: 2-Oxo-1,3-dioxolane-4-carboxylic acid and derivatives thereof, according to the following formula, in which R1 represents a negative charge, hydrogen or may be methyl or ethyl or an n-valent radical, which may be substituted with at most n?1 further 2-oxo-1,3-dioxolane-4-carboxyl groups, as well as a process for their preparation by means of carboxylation of the corresponding epoxides, a process for their transesterification and their use for the preparation of hydroxyurethanes and as end groups for the blocking of amines.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 22, 2011
    Applicant: Construction Research & Technology GmbH
    Inventors: Joanna MECFEL-MARCZEWSKI, Burkhard Walther, Jochen Mezger, Radoslaw Kierat, Rosita Staudhamer