Patents by Inventor Rama Konduri

Rama Konduri 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: 9255200
    Abstract: Disclosed herein are methods and compositions of blended polycarbonate compositions with improved heat resistance. The resulting compositions, comprising a first polycarbonate polymer, a second polycarbonate polycarbonate, an impact modifier, optionally a flow promoter, and optionally a flame retardant, can be used in the manufacture of articles while still retaining the advantageous physical properties of blended polycarbonate compositions with improved heat resistance. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 9, 2016
    Assignee: SABIC Global Technologies B.V.
    Inventors: Amit S. Kulkarni, Rama Konduri, Vikram K. Daga
  • Publication number: 20140275368
    Abstract: Disclosed herein are methods and compositions of blended polycarbonate compositions with improved mold release characteristics. The resulting compositions, comprising one or more polycarbonate polymers, an impact modifier, a polycarbonate-siloxane copolymer, and an alkyl sulfonate salt, can be used in the manufacture of articles requiring improved mold release characteristics while still retaining the advantageous physical properties of blended polycarbonate compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Yuanqing He, Rama Konduri Durvasula, James Louis DeRudder
  • Publication number: 20140066556
    Abstract: Disclosed herein are methods and compositions of blended polycarbonate compositions with improved heat resistance. The resulting compositions, comprising a first polycarbonate polymer, a second polycarbonate polycarbonate, an impact modifier, optionally a flow promoter, and optionally a flame retardant, can be used in the manufacture of articles while still retaining the advantageous physical properties of blended polycarbonate compositions with improved heat resistance. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Inventors: Amit S. Kulkarni, Rama Konduri, Vikram K. Daga
  • Publication number: 20120246873
    Abstract: A hollow molded article is obtained by molding a thermoplastic polyester composition comprising a blend of reinforcing fiber glass, polybutylene terephthalate with a melting point of 210 to 230° C. and polyethylene terephthalate with a melting point of 240 to 260° C., wherein at least 10% of the outer surface of the article has a continuous glossy region with a gloss of at least 75 gloss units, as measured at 60 degrees in accordance with ASTM D523 and wherein the gloss varies from the average less than 10 gloss units in the glossy region. A gas-assisted injection molding process is also disclosed for making such hollow molded articles, which articles can have various uses, including handles for appliances or the like.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 4, 2012
    Inventors: Rama Konduri, Robert R. Gallucci, Scott Davis
  • Publication number: 20120196965
    Abstract: A composition is disclosed, comprising, based on the total weight of the composition, a combination of from 44 to 80 weight percent of a thermoplastic poly(butylene terephthalate); from 20 to 50 weight percent of a thermoplastic poly(ethylene terephthalate) having an intrinsic viscosity of 0.5 to 0.8 deciliters per gram, measured in a 60:40 by weight phenol/1,1,2,2-tetrachloroethane mixture at 23° C. using a relative viscometer operating with a closed loop system, which measures the solvent and sample viscosity simultaneously; from 5 to less than 20 weight percent of a talc filler having an average largest dimension of less than 0.9 micrometers, a median particle size of less than 0.9 micrometers, or both; and from 0.1 to 0.5 weight percent of a mold release agent. The compositions are useful in the manufacture of lighting articles, which can be directly metallized without the inclusion of a base coat.
    Type: Application
    Filed: April 12, 2012
    Publication date: August 2, 2012
    Inventor: Rama Konduri
  • Patent number: 8188172
    Abstract: A composition is described, comprising: (a) from 20 to 80 wt % of a polyester; (b) from 5 to 35 wt % of a flame retardant phosphinate of the formula (I) [(R1)(R2)(PO)—O]?mMm+??(I), a flame retardant diphosphinate of the formula (II) [(O—POR1)(R3)(POR2—O)]2?nMxm+??(II), and/or a flame retardant polymer derived from the flame retardant phosphinate of the formula (I) or the flame retardant diphosphinate of the formula (II), wherein R1 and R2 are identical or different and are H, C1-C6-alkyl, linear or branched, or C6-C10-aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is an alkaline earth metal, alkali metal, Al, Ti, Zn, Fe, or boron; m is 1, 2, 3 or 4; n is 1, 2, or 3; and x is 1 or 2; (c) from 1 to 25 wt % of a melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, and/or melamine phosphate; (d) from more than 0 to 25 wt % of a polyetherimide; and (e) optionally, an additive.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: May 29, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Somasundaram Elango, Rama Konduri, Subodh Kumar Pal, Reema Sinha, Veeraraghavan Srinivasan, Chris van der Weele, Gerrit de Wit
  • Patent number: 8178208
    Abstract: A composition is disclosed, comprising, based on the total weight of the composition, a combination of from 44 to 80 weight percent of a thermoplastic poly(butylene terephthalate); from 20 to 50 weight percent of a thermoplastic poly(ethylene terephthalate) having an intrinsic viscosity of 0.5 to 0.8 deciliters per gram, measured in a 60:40 by weight phenol/1,1,2,2-tetrachloroethane mixture at 23° C. using a relative viscometer operating with a closed loop system, which measures the solvent and sample viscosity simultaneously; from 5 to less than 20 weight percent of a talc filler having an average largest dimension of less than 0.9 micrometers, a median particle size of less than 0.9 micrometers, or both; and from 0.1 to 0.5 weight percent of a mold release agent. The compositions are useful in the manufacture of lighting articles, which can be directly metallized without the inclusion of a base coat.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: May 15, 2012
    Assignee: Sabic Innovative Plastives IP B.V.
    Inventor: Rama Konduri
  • Patent number: 8168301
    Abstract: A composition comprising a combination of a thermoplastic polyester; and 0.2 to 0.7 parts by weight of an alkali metal salt, an alkaline earth metal salt, and/or a C1-12 ester of an aliphatic C24-36 carboxylic acid, based on 100 parts by weight of the polyester. The compositions are useful for molding parts, such as automotive headlamp reflectors.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: May 1, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Kayoko Onda, Francois de Bie, Theodorus Sweegers, Rama Konduri
  • Patent number: 7928150
    Abstract: An ionomeric, modified poly(1,4-butylene terephthalate) copolymer comprising: polyester units comprising non-ionomeric ester units and ionomeric ester units substituted with an inorganic ionic group; and polyester units having at least one residue that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers is described.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: April 19, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Ganesh Kannan, Dhaval Shah, Rama Konduri
  • Patent number: 7812077
    Abstract: A composition comprises 20 to 80 wt. % of a polyester component comprising a modified polybutylene terephthalate random copolymer derived from a polyethylene terephthalate component selected from polyethylene terephthalate and polyethylene terephthalate copolymers and having at least one residue derived from the polyethylene terephthalate component; from 5 to 35 wt. % of a flame retardant phosphinate (I) or (II) (R1)(R2)(PO)—O]?mMm+??(I) [(O—POR1)(R3)(POR2—O)]2?nMm+x??(II), and/or a flame retardant polymer thereof, wherein R1 and R2 are independently are H, C1-C6-alkyl, or C6-C10-aryl; R3 is C1-C10, alkylene, C6-C10-arylene, -alkylarylene or -arylalkylene; M is an alkaline earth metal, alkali metal, Al, Ti, Zn, Fe, or boron; m is 1, 2, 3 or 4; n is 1, 2, or 3; and x is 1 or 2; 1 to 25 wt. % of a melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, and/or melamine phosphate; and more than 0 to 25 wt. % of a polyetherimide.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: October 12, 2010
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Pravin Kamlakar Borade, Robert Russell Gallucci, Rama Konduri, Johannes Hubertus G. M. Lohmeijer, Subodh Kumar Pal, Veeraraghavan Srinivasan, Chris van der Weele, Gerrit de Wit
  • Publication number: 20090281204
    Abstract: An ionomeric, modified poly(1,4-butylene terephthalate) copolymer comprising: polyester units comprising non-ionomeric ester units and ionomeric ester units substituted with an inorganic ionic group; and polyester units having at least one residue that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers is described.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 12, 2009
    Inventors: Ganesh Kannan, Dhaval Shah, Rama Konduri
  • Publication number: 20090036578
    Abstract: A composition is described, comprising: (a) from 20 to 80 wt % of a polyester; (b) from 5 to 35 wt % of a flame retardant phosphinate of the formula (I) [(R1)(R2)(PO)—O]?mMm+??(I), a flame retardant diphosphinate of the formula (II) [(O—POR1)(R3)(POR2—O)]2?nMxm+??(II), and/or a flame retardant polymer derived from the flame retardant phosphinate of the formula (I) or the flame retardant diphosphinate of the formula (II), wherein R1 and R2 are identical or different and are H, C1-C6-alkyl, linear or branched, or C6-C10-aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is an alkaline earth metal, alkali metal, Al, Ti, Zn, Fe, or boron; m is 1, 2, 3 or 4; n is 1, 2, or 3; and x is 1 or 2; (c) from 1 to 25 wt % of a melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, and/or melamine phosphate; (d) from more than 0 to 25 wt % of a polyetherimide; and (e) optionally, an additive.
    Type: Application
    Filed: October 11, 2007
    Publication date: February 5, 2009
    Applicant: SABIC INNOVATIVE PLASTICS IP BV
    Inventors: Somasundaram Elango, Rama Konduri, Subodh Kumar Pal, Reema Sinha, Veeraraghavan Srinivasan, Chris van der Weele, Gerrit de Wit
  • Publication number: 20080139711
    Abstract: A composition comprises 20 to 80 wt. % of a polyester component comprising a modified polybutylene terephthalate random copolymer derived from a polyethylene terephthalate component selected from polyethylene terephthalate and polyethylene terephthalate copolymers and having at least one residue derived from the polyethylene terephthalate component; from 5 to 35 wt. % of a flame retardant phosphinate (I) or (II) (R1)(R2)(PO)—O]?mMm+ ??(I) [(O—POR1)(R3)(POR2—O)]2?nMm+x, ??(II) and/or a flame retardant polymer thereof, wherein R1 and R2 are independently are H, C1-C6-alkyl, or C6-C10-aryl; R3 is C1-C10, alkylene, C6-C10-arylene, -alkylarylene or -arylalkylene; M is an alkaline earth metal, alkali metal, Al, Ti, Zn, Fe, or boron; m is 1, 2, 3 or 4; n is 1, 2, or 3; and x is 1 or 2; 1 to 25 wt. % of a melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, and/or melamine phosphate; and more than 0 to 25 wt. % of a polyetherimide.
    Type: Application
    Filed: October 11, 2007
    Publication date: June 12, 2008
    Applicant: SABIC INNOVATIVE PLASTICS IP BV
    Inventors: Pravin Kamlakar Borade, Robert Russell Gallucci, Rama Konduri, Johannes Hubertus G.M. Lohmeijer, Subodh Kumar Pal, Veeraraghavan Srinivasan, Chris van der Weele, Gerrit de Wit
  • Publication number: 20080132630
    Abstract: A composition is disclosed, comprising, based on the total weight of the composition, a combination of from 44 to 80 weight percent of a thermoplastic poly(butylene terephthalate); from 20 to 50 weight percent of a thermoplastic poly(ethylene terephthalate) having an intrinsic viscosity of 0.5 to 0.8 deciliters per gram, measured in a 60:40 by weight phenol/1,1,2,2-tetrachloroethane mixture at 23° C. using a relative viscometer operating with a closed loop system, which measures the solvent and sample viscosity simultaneously; from 5 to less than 20 weight percent of a talc filler having an average largest dimension of less than 0.9 micrometers, a median particle size of less than 0.9 micrometers, or both; and from 0.1 to 0.5 weight percent of a mold release agent. The compositions are useful in the manufacture of lighting articles, which can be directly metallized without the inclusion of a base coat.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 5, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Rama Konduri
  • Publication number: 20070173572
    Abstract: A flame retardant resin composition comprising a polyester, a flame retardant compound, wherein said flame retardant compound comprises at least one P—H bond; an organic compound wherein said organic compound comprises of at least one carboxyl reactive group; and a phosphine suppressing additive compound. The composition possesses good stability and mechanical property. Also disclosed is a process to prepare these compositions and articles therefrom.
    Type: Application
    Filed: January 20, 2006
    Publication date: July 26, 2007
    Inventors: Gaurav Mediratta, Subodh Pal, Reema Sinha, Srinivason Krishnaswami, Gomatam Ravi, Chris Weele, Rama Konduri, Kenneth Miller
  • Publication number: 20070117897
    Abstract: A composition comprising a combination of a thermoplastic polyester; and 0.2 to 0.7 parts by weight of an alkali metal salt, an alkaline earth metal salt, and/or a C1-12 ester of an aliphatic C24-36 carboxylic acid, based on 100 parts by weight of the polyester. The compositions are useful for molding parts, such as automotive headlamp reflectors.
    Type: Application
    Filed: November 9, 2006
    Publication date: May 24, 2007
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Kayoko Onda, Francois de Bie, Theodorus Sweegers, Rama Konduri