Patents by Inventor Kishore Udipi

Kishore Udipi 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).

  • Active agent delivery systems, medical devices, and methods
    Publication number: 20040086569
    Abstract: The present invention provides active agent delivery systems for use in medical devices, wherein the active agent delivery systems include an active agent and a miscible polymer blend.
    Type: Application
    Filed: August 13, 2003
    Publication date: May 6, 2004
    Applicant: Medtronic, Inc.
    Inventors: Randall V. Sparer, Christopher M. Hobot, SuPing Lyu, Kishore Udipi
  • Functionalized ethylene oxide antistatic agents for ABS/SMA blends
    Patent number: 5346959
    Abstract: An antistatic agent for thermoplastic polymers is provided wherein the antistatic agent is comprised of a functionalized alkylene oxide polymer and optionally a minor amount of an alkali or alkaline earth metal salt capable of complexing with the functionalized alkylene oxide polymer and wherein the thermoplastic polymers include styrenic polymers such as ABS; blends of an ABS copolymer and a styrene-maleic anhydride copolymer; or nylon 6.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: September 13, 1994
    Assignee: Monsanto Company
    Inventors: Goman (Gomez) Peter M., Kishore Udipi, Lionel R. Stebbins
  • Antistatic thermoplastic polymers
    Patent number: 5334635
    Abstract: Antistatic thermoplastic styrenic compositions comprising high molecular weight polyethylene oxide and a lithium salt and ethylene glycol, diethylene glycol or triethylene glycol, characterized by their possession of a balance of mechanical properties, gloss and antistatic behavior.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: August 2, 1994
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Lactam-lactone copolymer
    Patent number: 5200498
    Abstract: Lactam-lactone copolymers are provided that range in properties from plastic to elastomer which are formed by reacting components of a polymerizable composition comprising: a lactam monomer; a lactone monomer; a C.sub.3 to C.sub.12 lactam magnesium halide catalyst; and an initiator.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: April 6, 1993
    Assignee: Monsanto Company
    Inventors: Kishore Udipi, Lionel R. Stebbins
  • Rubber modified reaction moldable nylon-6 compositions
    Patent number: 5189098
    Abstract: Dispersions of core-shell polymers in caprolactam wherein the core-shell polymer comprises a crosslinked elastomer core and a hard thermoplastic shell prepared by adding an aqueous dispersion of core-shell polymer to an aqueous solution of caprolactam, stirring the mixture to provide a uniform dispersion and evaporating water from the mixture. Such dispersions can be combined with caprolactam polymerization initiator and caprolactam polymerization catalyst to provide rubber-modified nylon-6 polymers.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: February 23, 1993
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Rubber-modified polymer blends of polycarbonate and PETG
    Patent number: 5187230
    Abstract: Polymer blends useful as thermoplastic molding resins comprise PC, PETG and sufficient rubber, e.g. nitrile rubber or ethylene-acrylate copolymer rubber, to enhance the moldability of the blend. Preferred blends comprise at least 30% PC, 30% PETG and 5% rubber.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: February 16, 1993
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Impact resistant polyester blends
    Patent number: 5162416
    Abstract: Impact resistant polymer blends of crystallizable polyester, e.g. PET, and styrene copolymer graft rubber composition, e.g. ABS, and an impact modifying amount of a mixture of a fatty acid salt, e.g. sodium stearate, and an acid copolymer, e.g. SMA, are useful as engineering thermoplastics, e.g. for injection molding of articles requiring high impact resistance.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: November 10, 1992
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Molding compositions of polyvinylbutyral blend
    Patent number: 5130370
    Abstract: A melt blended thermoplastic molding composition consisting essentially of, on a weight basis: (A) 40 to 70 parts plasticized polyvinyl butyral; (B) 60 to 30 parts poly(methylmethacrylate); (C) 0 to 15 parts filler; (D) 0 to 30 parts elastomeric graft polymer; and 0 to 30 parts thermoplastic polyurethane; provided that at least 10 parts of (D) or (E) or mixtures of (D) and (E) is present; and the sum of (A)+(B)+(C)+(D)+(E) is always 100.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: July 14, 1992
    Assignee: Monsanto Company
    Inventors: Kishore Udipi, Lionel R. Stebbins
  • Polymer blends of polycarbonate, PETG and ABS
    Patent number: 5104934
    Abstract: Polymer blends useful as thermoplastic molding resins comprise polycarbonate, PETG and ABS or ASA exhibit enhanced moldability, heat resistance and thick section impact resistance not available in binary blends of the components.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: April 14, 1992
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Polymer blends of polycarbonate, PCTG and ABS
    Patent number: 5082897
    Abstract: Polymer blends useful as thermoplastic molding resins comprise polycarbonate, PCTG and ABS or ASA and exhibit enhanced moldability, heat resistance and thick section toughness not available in binary blends of the components.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: January 21, 1992
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Rubber modified reaction molded nylon-6 block copolymers
    Patent number: 5051469
    Abstract: Dispersions of core-shell polymers in caprolactam solutions of telechelic polymers capable of being polymerized to form rubber-modified nylon-6 block copolymers having improved impact strength wherein the core-shell polymer comprises a crosslinked elastomer core and a hard thermoplastic polymer shell and wherein the telechelic polymers preformed or formed in situ, are capped with lactam polymerization initiator groups.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: September 24, 1991
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Rubber modified reaction moldable nylon-6 compositions
    Patent number: 4994524
    Abstract: Dispersions of core-shell polymers in caprolactam wherein the core-shell polymer comprises a crosslinked elastomer core and a hard thermoplastic shell prepared by adding an aqueous dispersion of core-shell polymer to an aqueous solution of caprolactam, stirring the mixture to provide a uniform dispersion and evaporating water from the mixture. Such dispersions can be combined with caprolactam polymerization initiator and caprolactam polymerization catalyst to provide rubber-modified nylon-6 polymers.
    Type: Grant
    Filed: July 27, 1988
    Date of Patent: February 19, 1991
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Polyblends of thermoplastic copolyesters and styrene acrylonitrile copolymers
    Patent number: 4987187
    Abstract: A molding composition prepared from a blend of: (A) a copolyester of a dicarboxylic acid moiety, such as terephthalic acid or dimethyl terephthalate and a dihydric alcohol moiety, such as ethylene glycol in combination with diethylene glycol or 1,4-cyclohexanedimethanol, and (B) a copolymer prepared from a styrenic monomer and an ethylenically unsaturated nitrile, wherein articles molded from such compositions have improved clarity and toughness.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: January 22, 1991
    Assignee: Monsanto Company
    Inventors: Kishore Udipi, Allen R. Padwa
  • Polyblends of thermoplastic copolyesters and styrenic/unsaturated dicarboxylic acid anhydride copolymers
    Patent number: 4985501
    Abstract: A molding composition prepared from a blend of: (a) a copolyester of a dicarboxylic acid moiety, such as terephthalic acid or dimethyl terephthalate, and a dihydric alcohol moiety, such as ethylene glycol in combination with diethylene glycol or 1,4-cyclohexanedimethanol and (b) a copolymer prepared from a styrenic monomer, an unsaturated dicarboxylic acid anhydride, and optionally an alkyl (meth)acrylic ester wherein the alkyl group contains 1 to 3 carbon atoms, wherein articles molded from such compositions have improved clarity and toughness.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: January 15, 1991
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Rubber modified reaction molded nylon-6 block copolymers
    Patent number: 4882382
    Abstract: Dispersions of core-shell polymers in caprolactam solutions of telechelic polymers capable of being polymerized to form rubber-modified nylon-6 block copolymers having improved impact strength wherein the core-shell polymer comprises a cross-linked elastomer core and a hard thermoplastic polymer shell and wherein the telechelic polymers preformed or formed in situ, are capped with lactam polymerization initiator groups.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: November 21, 1989
    Assignee: Monsanto Company
    Inventor: Kishore Udipi
  • Haze-free, clear, impact-resistant resinous polymers
    Patent number: 4405754
    Abstract: Haze-free, clear, impact-resistant resinous copolymers are produced by coupling polymer-lithium with a mixture of coupling agents wherein one is a lactone such as butyrolactone and the other is a halo-silane such as phenyltrichlorosilane. The combination of coupling agents reduces haze, yet maintains clarity and impact resistance of the resulting coupled polymer.
    Type: Grant
    Filed: January 13, 1982
    Date of Patent: September 20, 1983
    Assignee: Phillips Petroleum Company
    Inventors: George A. Moczygemba, Kishore Udipi
  • Sulfur or peroxy cured epoxidized diene rubbers
    Patent number: 4341672
    Abstract: Sulfur or peroxy cured compositions prepared from epoxidized diene rubbers.
    Type: Grant
    Filed: September 19, 1980
    Date of Patent: July 27, 1982
    Assignee: Phillips Petroleum Company
    Inventors: Henry L. Hsieh, Kishore Udipi
  • Hydrocarbyl esters of N-cyclopropyl-N-hydrocarbylcarbamic acids as coupling agents for conjugated diene polymerizations
    Patent number: 4309517
    Abstract: Hydrocarbyl esters of N-cyclopropyl-N-hydrocarbylcarbamic acids, such as ethyl N-benzyl-N-cyclopropylcarbamate, are effective coupling agents for conjugated diene polymerization systems employing an alkali metal-based initiator.
    Type: Grant
    Filed: October 23, 1980
    Date of Patent: January 5, 1982
    Assignee: Phillips Petroleum Company
    Inventor: Kishore Udipi
  • Lactones from gamma-hydroxy acids as coupling agents
    Patent number: 4308364
    Abstract: Lactones derived from gamma-hydroxy acids are employed as coupling agents for polymers derived from alkali metal-initiated polymerizations. These coupling agents provide effective coupling without formation of undesirable by-products.
    Type: Grant
    Filed: October 23, 1980
    Date of Patent: December 29, 1981
    Assignee: Phillips Petroleum Company
    Inventor: Kishore Udipi
  • Azodicarboxylate-modified copolymers
    Patent number: 4255536
    Abstract: A copolymer of a conjugated diene/monovinylarene modified by reaction with a dihydrocarbyl azodicarboxylate.
    Type: Grant
    Filed: April 24, 1979
    Date of Patent: March 10, 1981
    Assignee: Phillips Petroleum Company
    Inventor: Kishore Udipi