Patents by Inventor Susmit Basu

Susmit Basu 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).

  • Patent number: 11177049
    Abstract: The disclosure describes a method of purifying a self-healing fluid (SHF) comprising a drying oil and dielectric fluid. The method comprises (a) filtering the SHF through an absorbent material; and (b) subsequently filtering the SHF through a micropore filter system.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: November 16, 2021
    Assignee: Kinectrics UK Limited
    Inventors: Rhys Rhodes, Gary Stevens, Ian German, Susmit Basu
  • Publication number: 20200135359
    Abstract: The disclosure describes a method of purifying a self-healing fluid (SHF) comprising a drying oil and dielectric fluid. The method comprises (a) filtering the SHF through an absorbent material; and (b) subsequently filtering the SHF through a micropore filter system.
    Type: Application
    Filed: July 12, 2018
    Publication date: April 30, 2020
    Inventors: Rhys Rhodes, Gary Stevens, Ian German, Susmit Basu
  • Publication number: 20190315906
    Abstract: The present invention refers to a polymer blend comprising (i) between 10 wt % and 99.9 wt %, with respect to the total weight of the blend, of a thermoplastic host polymer, provided it is not a polyborosiloxane; and (ii) between 0.1 wt % and 90 wt %, with respect to the total weight of the blend, of a disulfide-containing self-healing polymer comprising a first polymeric chain fragment comprising one or more disulfide moieties and at least one moiety selected from the group consisting of —N(R1)—C(?O)—N(R2)—, —N(R1)—C(?O)—O— and —N(R1)—C(?O)—S—, wherein each R1 and R2 is independently selected from the group consisting of hydrogen, C1-C24-alkyl and C6-C15-aryl. The invention also refers to use of said blends, for example as cable sheaths.
    Type: Application
    Filed: December 12, 2017
    Publication date: October 17, 2019
    Inventors: Luis Miguel MÉNDEZ LLATAS, María Joaquina CABALLERO PÉREZ, María Victoria ALONSO ZORZO, Gary STEVENS, Ian GERMAN, Susmit BASU, Rhys RODES
  • Patent number: 10385167
    Abstract: The present invention relates to polyoxazolidinone compounds, a method for the production of polyoxazolidinone compounds, comprising the step of reacting a biscarbamate compound with a bisepoxide compound in the presence of a mono-carbamate, a mono-isocyanate and/or a mono-epoxide compound as chain regulator and a suitable base having a pKb value of ?9 as catalyst. The invention further relates to the use of polyoxazolidinone compounds with high thermal stability.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: August 20, 2019
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Susmit Basu, Claudine Rangheard, David Rivillo, Walter Leitner, Burkhard Köhler
  • Publication number: 20180022871
    Abstract: The present invention relates to polyoxazolidinone compounds, a method for the production of polyoxazolidinone compounds, comprising the step of reacting a biscarbamate compound with a bisepoxide compound in the presence of a mono-carbamate, a mono-isocyanate and/or a mono-epoxide compound as chain regulator and a suitable base having a pKb value of ?9 as catalyst. The invention further relates to the use of polyoxazolidinone compounds with high thermal stability.
    Type: Application
    Filed: February 9, 2016
    Publication date: January 25, 2018
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Susmit Basu, Claudine Rangheard, David Rivillo, Walter Leitner, Burkhard Köhler
  • Publication number: 20170088659
    Abstract: The present invention relates to a method for the production of oxazolidinone compounds with low colour intensity, comprising the step of reacting an isocyanate compound with an epoxide compound in the presence of a catalyst which is free of halide anions. The invention further relates to a method for the production of oligooxazolidinone and/or polyoxazolidinone compounds, comprising the step of reacting a polyisocyanate compound with a polyepoxide compound in the presence of said catalyst. The invention further relates to oligooxazolidinone and/or polyoxazolidinone compounds with low colour intensity, obtainable by a method according to the invention.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 30, 2017
    Applicant: Covestro Deutschland AG
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Susmit Basu, Claudine Rangheard, Anna Weber, Henning Vogt, Walter Leitner
  • Publication number: 20170081462
    Abstract: The present invention relates to a method for the selective production of oxazolidinone compounds with high activities, comprising the step of reacting an isocyanate compound with an epoxide compound in the presence of an onium salt as catalyst and to the oxazolidinone compounds obtainable by said method. The invention further relates to a polyoxazolidinone compound, obtainable by reacting a polyisocyanate compound with a polyepoxide compound in the presence of an onium salt as catalyst, with a regioselectivity towards the 5-substituted 1,3-oxazolidin-2-one regioisomer of ?78%.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 23, 2017
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Susmit Basu, Irene Latorre, Claudine Rangheard, Walter Leitner
  • Publication number: 20170081459
    Abstract: The present invention relates to a method for the production of polyoxazolidinone compounds, comprising the step of reacting an isocyanate compound, preferably a diisocyanate compound with an epoxide compound, preferably a diepoxide compound. The invention further relates to a polyoxazolidinone compound obtainable by said method, a polymeric resin obtainable by reacting a polymeric compound according to the invention with a cross linking compound and the use of a polymeric resin according to the invention as a coating, additive and composite material.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 23, 2017
    Inventors: Thomas Ernst Müller, Christoph Gürtler, Susmit Basu, Claudine Rangheard, Anna Weber, Walter Leitner
  • Patent number: 9458281
    Abstract: The present invention relates to a method for the production of oxazolidinone compounds, comprising the step of slowly reacting an isocyanate compound with an epoxide compound in the presence of a Lewis acid catalyst. The invention further relates to an oxazolidinone compound, obtainable by a method according to the invention, with a color as determined according to ASTM D1209-05 (2011) of ?200 and a molar ratio of the oxazolidinone compound to isocyanurate by-product o/i of ?85/15. Lastly, the invention relates to an oligomeric or polymeric oxazolidinone compound, obtainable by a method according to the invention using an isocyanate compound with two or more NCO groups per molecule and an epoxide compound with two or more epoxy groups per molecule, comprising at least two units derived from the isocyanate compound and at least two units derived from the epoxide compound, with a color as determined according to ASTM D1209-05 (2011) of ?200.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: October 4, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Ernst Mueller, Christoph Guertler, Susmit Basu, Walter Leitner
  • Publication number: 20150291726
    Abstract: The present invention relates to a method for the production of oxazolidinone compounds, comprising the step of slowly reacting an isocyanate compound with an epoxide compound in the presence of a Lewis acid catalyst. The invention further relates to an oxazolidinone compound, obtainable by a method according to the invention, with a colour as determined according to ASTM D1209-05 (2011) of ?200 and a molar ratio of the oxazolidinone compound to isocyanurate by-product o/i of ?85/15. Lastly, the invention relates to an oligomeric or polymeric oxazolidinone compound, obtainable by a method according to the invention using an isocyanate compound with two or more NCO groups per molecule and an epoxide compound with two or more epoxy groups per molecule, comprising at least two units derived from the isocyanate compound and at least two units derived from the epoxide compound, with a colour as determined according to ASTM D1209-05 (2011) of ?200.
    Type: Application
    Filed: November 11, 2013
    Publication date: October 15, 2015
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Ernst Mueller, Christoph Guertler, Susmit Basu, Walter Leitner