Patents by Inventor Bangaru Sampath

Bangaru Sampath 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: 10543664
    Abstract: The present invention relates to a process for producing a molding made from blowing agent-containing foam comprising at least one fiber (F), wherein the at least one fiber (F) is partially introduced into the blowing agent-containing foam. The two ends of the respective fiber (F) that are not surrounded by the blowing agent-containing foam thus project from one side of the corresponding molding. The present invention also provides the molding as such. The present invention further provides a panel comprising at least one such molding, produced by the process according to the invention, and at least one further layer (S1). The present invention also provides for the production of the panels of the invention and for the use thereof, for example as a rotor blade in wind turbines.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: January 28, 2020
    Assignee: BASF SE
    Inventors: Holger Ruckdäschel, Rene Arbter, Robert Stein, Daniela Longo-Schedel, Tim Diehlmann, Bangaru Sampath, Peter Gutmann, Alexandre Terrenoire, Markus Hartenstein, Andreas Kirgis, Alessio Morino, Gregor Daun, Marc Claude Martin, Peter Merkel, Thomas Kiciak
  • Publication number: 20180257345
    Abstract: The present invention relates to a process for producing a molding made from blowing agent-containing foam comprising at least one fiber (F), wherein the at least one fiber (F) is partially introduced into the blowing agent-containing foam. The two ends of the respective fiber (F) that are not surrounded by the blowing agent-containing foam thus project from one side of the corresponding molding. The present invention also provides the molding as such. The present invention further provides a panel comprising at least one such molding, produced by the process according to the invention, and at least one further layer (S1). The present invention also provides for the production of the panels of the invention and for the use thereof, for example as a rotor blade in wind turbines.
    Type: Application
    Filed: December 15, 2015
    Publication date: September 13, 2018
    Inventors: Holger RUCKDÄSCHEL, Rene ARBTER, Robert STEIN, Daniela LONGO-SCHEDEL, Tim DIEHLMANN, Bangaru SAMPATH, Peter GUTMANN, Alexandre TERRENOIRE, Markus HARTENSTEIN, Andreas KIRGIS, Alessio MORINO, Gregor DAUN, Marc Claude MARTIN, Peter MERKEL, Thomas KICIAK
  • Publication number: 20180009960
    Abstract: The present invention relates to a molding made of expanded bead foam, wherein at least one fiber (F) is partly within the molding, i.e. is surrounded by the expanded bead foam. The two ends of the respective fibers (F) that are not surrounded by the expanded bead foam thus each project from one side of the corresponding molding. The present invention further provides a panel comprising at least one such molding and at least one further layer (S1). The present invention further provides processes for producing the moldings of the invention from expanded bead foam or the panels of the invention and for the use thereof, for example as rotor blade in wind turbines.
    Type: Application
    Filed: December 15, 2015
    Publication date: January 11, 2018
    Inventors: Holger RUCKDÄSCHEL, Alexandre TERRENOIRE, Rene ARBTER, Bangaru SAMPATH, Peter GUTMANN, Ragnar STOLL, Christophe Leon Marie HEBETTE, Robert STEIN
  • Publication number: 20170369667
    Abstract: The invention relates to a molding composed of extruded foam, wherein at least one fiber (F) is present with a fiber region (FB2) within the molding and is surrounded by the extruded foam, while a fiber region (FB1) of the fiber (F) projects from a first side of the molding and a fiber region (FB3) of the fiber (F) projects from a second side of the molding, and the extruded foam is produced by an extrusion process comprising the following steps: I) providing a polymer melt in an extruder, II) introducing at least one blowing agent into the polymer melt provided in step I) to obtain a foamable polymer melt, III) extruding the foamable polymer melt obtained in step II) from the extruder through at least one die aperture into an area at lower pressure, with expansion of the foamable polymer melt to obtain an expanded foam, and IV) calibrating the expanded foam from step III) by conducting the expanded foam through a shaping tool to obtain the extruded foam.
    Type: Application
    Filed: December 15, 2015
    Publication date: December 28, 2017
    Inventors: Holger RUCKDÄSCHEL, Rene ARBTER, Robert STEIN, Daniela LONGO-SCHEDEL, Tim DIEHLMANN, Bangaru SAMPATH, Peter GUTMANN, Alexandre TERRENOIRE, Markus HARTENSTEIN, Andreas KIRGIS, Gregor DAUN, Marc Claude MARTIN, Peter MERKEL, Thomas KICIAK, Alessio MORINO
  • Publication number: 20170361545
    Abstract: The present invention relates to a molding made from foam, wherein at least one fiber (F) is partly within the molding, i.e. is surrounded by the foam. The two ends of the respective fibers (F) that are not surrounded by the foam thus each project from one side of the corresponding molding. The foam comprises at least two mutually bonded foam segments.
    Type: Application
    Filed: December 15, 2015
    Publication date: December 21, 2017
    Inventors: Holger RUCKDÄSCHEL, Rene ARBTER, Robert STEIN, Daniela LONGO-SCHEDEL, Tim DIEHLAMAN, Bangaru SAMPATH, Peter GUTMANN, Alexandre TERRENOIRE, Markus HARTENSTEIN, Andreas KIRGIS, Alessio MORINO, Gregor DAUN, Marc Claude MARTIN
  • Patent number: 9427900
    Abstract: The present invention relates to a composite component comprising an unfoamed polymer phase and a foamed phase, and to a process for producing the same.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: August 30, 2016
    Assignee: BASF SE
    Inventors: Philippe Desbois, Olaf Kriha, Bangaru Sampath, Holger Ruckdäschel, Dietrich Scherzer, Freddy Gruber, Klaus Hahn
  • Publication number: 20160060417
    Abstract: The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of polylactic acid, one or more further polymers, a diepoxide or polyepoxide, and one or more additives, b) incorporation by mixing of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.5 mm, and d) pelletizing the melt comprising blowing agent directly downstream of the die plate, and under water, at a pressure in the range from 1 to 20 bar. The invention further relates to expandable pelletized material which comprises polylactic acid and which is obtainable by said process.
    Type: Application
    Filed: November 11, 2015
    Publication date: March 3, 2016
    Applicant: BASF SE
    Inventors: Andreas FUSSL, Bangaru SAMPATH, Maximilian HOFMANN, lngo BELLIN, Sameer NALAWADE, Klaus HAHN, Andreas KÜNKEL, Robert LOOS
  • Patent number: 9212270
    Abstract: The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of the following components: i) from 50 to 99.9% by weight, based on the total weight of components i to iii), of polylactic acid, ii) from 0 to 49.9% by weight, based on the total weight of components i to iii), of one or more further polymers, iii) from 0.1 to 2% by weight, based on the total weight of components i to iii), of a diepoxide or polyepoxide, and iv) from 0 to 10% by weight of one or more additives, b) incorporation by mixing of v) from 3 to 7% by weight, based on the total weight of components i to iv), of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: December 15, 2015
    Assignee: BASF SE
    Inventors: Andreas Füβl, Bangaru Sampath, Maximilian Hofmann, Ingo Bellin, Sameer Nalawade, Klaus Hahn, Andreas Künkel, Robert Loos
  • Publication number: 20130150468
    Abstract: The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of the following components: i) from 50 to 99.9% by weight, based on the total weight of components i to iii), of polylactic acid, ii) from 0 to 49.9% by weight, based on the total weight of components i to iii), of one or more further polymers, iii) from 0.1 to 2% by weight, based on the total weight of components i to iii), of a diepoxide or polyepoxide, and iv) from 0 to 10% by weight of one or more additives, b) incorporation by mixing of v) from 3 to 7% by weight, based on the total weight of components i to iv), of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.
    Type: Application
    Filed: January 6, 2011
    Publication date: June 13, 2013
    Applicant: BASF SE
    Inventors: Andreas Füssi, Bangaru Sampath, Maximilian Hofmann, Ingo Bellin, Sameer Nalawade, Klaus Hahn, Andreas Künkel, Robert Loos
  • Publication number: 20120119402
    Abstract: The present invention relates to a composite component comprising an unfoamed polymer phase and a foamed phase, and to a process for producing the same.
    Type: Application
    Filed: November 9, 2011
    Publication date: May 17, 2012
    Applicant: BASF SE
    Inventors: Philippe DESBOIS, Olaf Kriha, Bangaru Sampath, Holger Ruckdäschel, Dietrich Scherzer, Freddy Gruber, Klaus Hahn
  • Patent number: 7671127
    Abstract: The invention relates to thermoplastic molding compositions, comprising A) from 35 to 95% by weight of at least one graft copolymer A), which is obtainable via reaction of A1) from 5 to 95% by weight of a polymer A1), which is obtained from at least one dicarboxylic anhydride a11) and from at least one vinylaromatic comonomer a12), and A2) from 5 to 95% by weight of a polyamide A2), B) from 5 to 40% by weight of at least one ungrafted or grafted, non-particulate rubber without core-shell structure B), which has functional groups which can react with the end groups of component A), C) from 0 to 50% by weight of at least one particulate or fibrous filler or particulate or fibrous reinforcing material C), D) from 0 to 60% by weight of at least one copolymer D) composed of vinyl aromatic monomers d1) and of comonomers d2), and E) from 0 to 40% by weight of at least one other additive E), where the entirety of components A) to E) gives 100% by weight, and also to processes for preparation of the thermoplasti
    Type: Grant
    Filed: December 3, 2005
    Date of Patent: March 2, 2010
    Assignee: BASF SE
    Inventors: Martin Weber, Frank Rittig, Werner Haensel, Walter Heckmann, Hans Hönl, Peter Ittemann, Bangaru Sampath
  • Publication number: 20090239990
    Abstract: The invention relates to thermoplastic molding compositions, comprising A) from 35 to 95% by weight of at least one graft copolymer A), which is obtainable via reaction of A1) from 5 to 95% by weight of a polymer A1), which is obtained from at least one dicarboxylic anhydride a11) and from at least one vinylaromatic comonomer a12), and A2) from 5 to 95% by weight of a polyamide A2), B) from 5 to 40% by weight of at least one ungrafted or grafted, non-particulate rubber without core-shell structure B), which has functional groups which can react with the end groups of component A), C) from 0 to 50% by weight of at least one particulate or fibrous filler or particulate or fibrous reinforcing material C), D) from 0 to 60% by weight of at least one copolymer D) composed of vinyl aromatic monomers d1) and of comonomers d2), and E) from 0 to 40% by weight of at least one other additive E), where the entirety of components A) to E) gives 100% by weight, and also to processes for preparation of the thermoplasti
    Type: Application
    Filed: December 3, 2005
    Publication date: September 24, 2009
    Applicant: BASF Aktiengesellschaft Patents, Trademarks and Licenses
    Inventors: Martin Weber, Frank Rittig, Werner Haensel, Walter Heckmann, Hans Hönl, Peter Ittemann, Bangaru Sampath