Patents by Inventor Manjari Kuntimaddi

Manjari Kuntimaddi 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: 7288604
    Abstract: The present invention is directed to a method of forming a golf ball that contains an interpenetrating polymer network, or IPN, which includes at least two polymeric systems, in one or more of the layers. The first polymeric system may include a polyurethane-based or polyurea-based system having blocked isocyanate groups and the second polymeric system may include an epoxy-based or acrylic-based system, wherein the two systems are polymerized or cured simultaneously or sequentially to form an IPN.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: October 30, 2007
    Assignee: Acushnet Company
    Inventors: Manjari Kuntimaddi, Shenshen Wu, Murali Rajagopalan
  • Patent number: 7276570
    Abstract: Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These compositions comprise at least one polymer having a plurality of amide linkages and a plurality of anionic moieties attached thereto. These compositions can be used in any one or more portions of the golf balls, such as inner center, core, inner core layer, intermediate core layer, outer core layer, intermediate layer, cover, inner cover layer, intermediate cover layer, and/or outer cover layer.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: October 2, 2007
    Assignee: Acushnet Company
    Inventors: Manjari Kuntimaddi, Murali Rajagopalan, Shenshen Wu
  • Patent number: 7265195
    Abstract: Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These compositions comprise at least one polymer having a plurality of amide linkages and a plurality of cationic moieties attached thereto. These compositions can be used in any one or more portions of the golf balls, such as inner center, core, inner core layer, intermediate core layer, outer core layer, intermediate layer, cover, inner cover layer, intermediate cover layer, and/or outer cover layer.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: September 4, 2007
    Assignee: Acushnet Company
    Inventors: Manjari Kuntimaddi, Murali Rajagopalan
  • Patent number: 7262235
    Abstract: A golf ball comprising a center, an inner cover layer, and an outer cover layer, wherein the outer cover layer has a color lightness, L*, of 87 or greater following exposure to UV light at an irradiance power of 1.00 W/m2/nm for a period of about 1 hour to about 4 hours, and the cover comprises a polyurea formed from a prepolymer and a curing agent; and a blend of color stabilizers consisting of 2-(2H-Benzotriazol-2-yl)-4-methyl-6-dodecylphenol, 3-(2H-Benzotriazol-2-yl)-5-tert-butyl-4-hydroxybenzenepropanoic acid, and 2-[4-((2-Hydroxy-3-dodecyloxypropyl)oxy)-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine; wherein each of the color stabilizers is present in an amount of 1.0 to 3.0 percent by weight.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: August 28, 2007
    Assignee: Acushnet Company
    Inventors: David A. Bulpett, Shenshen Wu, Kevin M. Harris, Manjari Kuntimaddi, Mitchell E. Lutz
  • Patent number: 7259222
    Abstract: Golf balls comprising elastomer compositions are presently disclosed. These elastomer compositions comprise at least one polyamine having the structure: where R1 and R2 are the same or different radicals chosen from hydrogen and C1-C60 organic moieties: Z1 is chosen from halogens and C1-C60 organic radicals: and Z2, Z3 and Z4 are the same or different radicals chosen from hydrogen, halogens, and C1-C60 organic radicals. These elastomer compositions can be used in any one or more portions of the golf balls, such as inner core layer, intermediate core layer, outer core layer, intermediate layer, cover, inner cover layer, intermediate cover layer, and/or outer cover layer.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: August 21, 2007
    Assignee: Acushnet Company
    Inventors: Shenshen Wu, Manjari Kuntimaddi, Murali Rajagopalan
  • Publication number: 20070173348
    Abstract: The present invention is directed to golf balls having at least one layer formed from a polyurea composition. The polyurea is formed by combining an aliphatic polyarea prepolymer, a diamine curative, and a cyclic carbonate diluent. Golf balls of the present invention include one-piece, two-piece, multi-layer, and wound golf balls. The composition may be present in any one or more of a core layer, a cover layer, or an intermediate layer.
    Type: Application
    Filed: March 23, 2007
    Publication date: July 26, 2007
    Inventors: Murali Rajagopalan, Manjari Kuntimaddi, Shenshen Wu, Shawn Ricci, Kevin Harris
  • Publication number: 20070129510
    Abstract: Compositions for golf balls including oxirane functional endcapped polymers and, in particular, compositions formed from polyurethane-based or polyurea-based prepolymers that are endcapped with an oxirane functional group. The oxirane functionality is opened with a suitable curing agent to provide a composition that has flexibility via the prepolymer backbone and stiffness via the oxirane functional endcaps.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 7, 2007
    Inventors: Manjari Kuntimaddi, Shenshen Wu, Murali Rajagopalan, Matthew Hogge, Steven Zawacky, Michael Mayo
  • Publication number: 20070117952
    Abstract: Golf ball components, such as cores, intermediate layers, and covers, formed with compositions including precursors with acrylate functionality crosslinked with a curing agent.
    Type: Application
    Filed: December 18, 2006
    Publication date: May 24, 2007
    Inventors: Mitchell Lutz, Manjari Kuntimaddi
  • Publication number: 20070082990
    Abstract: A golf ball comprising a center, an inner cover layer, and an outer cover layer, wherein the outer cover layer has a color lightness, L*, of 87 or greater following exposure to UV light at an irradiance power of 1.00 W/m2/nm for a period of about 1 hour to about 4 hours, and the cover comprises a polyurea formed from a prepolymer and a curing agent; and a blend of color stabilizers consisting of 2-(2H-Benzotriazol-2-yl)-4-methyl-6-dodecylphenol, 3-(2H-Benzotriazol-2-yl)-5-tert-butyl-4-hydroxybenzenepropanoic acid, and 2-[4-((2-Hydroxy-3-dodecyloxypropyl)oxy)-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine; wherein each of the color stabilizers is present in an amount of 1.0 to 3.0 percent by weight.
    Type: Application
    Filed: December 8, 2006
    Publication date: April 12, 2007
    Inventors: David Bulpett, Shenshen Wu, Kevin Harris, Manjari Kuntimaddi, Mitchell Lutz
  • Patent number: 7175545
    Abstract: The present invention is directed to a method of forming a golf ball that contains an interpenetrating polymer network, or IPN, which includes at least two polymeric components, in one or more of the layers. In one preferred embodiment, the present invention is directed to a method of forming an intermediate or cover layer that contains an IPN.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: February 13, 2007
    Assignee: Acushnet Company
    Inventors: Manjari Kuntimaddi, David A. Bulpett
  • Patent number: 7157527
    Abstract: The present invention is directed to a method of forming a golf ball that contains an interpenetrating polymer network, or IPN, which includes at least two polymeric systems, in one or more of the layers. The first polymeric system may include a polyurethane-based or polyurea-based system having blocked isocyanate groups and the second polymeric system may include an epoxy-based or acrylic-based system, wherein the two systems are polymerized or cured simultaneously or sequentially to form an IPN.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: January 2, 2007
    Assignee: Acushnet Company
    Inventors: Manjari Kuntimaddi, Shenshen Wu, Murali Rajagopalan
  • Patent number: 7151148
    Abstract: Golf ball components, such as cores, intermediate layers, and covers, formed with compositions including precursors with acrylate functionality crosslinked with a curing agent.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: December 19, 2006
    Assignee: Acushnet Company
    Inventors: Mitchell E. Lutz, Manjari Kuntimaddi
  • Patent number: 7148278
    Abstract: A golf ball including a center, a cover, and, optionally, at least one intermediate layer disposed between the center and the cover, wherein the cover is formed from a polyurethane composition, or a reaction product thereof, including at least one polyol; at least one polyisocyanate; at least one curing agent; and at least one color stabilizer; wherein the color stabilizer is present in an amount sufficient to provide a ?C* of less than about 22 upon exposure to UV light over a timeframe of 1 hour.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: December 12, 2006
    Assignee: Acushnet Company
    Inventors: David A. Bulpett, Shenshen Wu, Kevin M. Harris, Manjari Kuntimaddi, Mitchell E. Lutz
  • Patent number: 7138475
    Abstract: Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise at least one amine-terminated polyamide and at least one isocyanate-containing prepolymer. These elastomer compositions can be used in any one or more portions of the golf balls, such as inner center, core, inner core layer, intermediate core layer, outer core layer, intermediate layer, cover, inner cover layer, intermediate cover layer, and/or outer cover layer.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: November 21, 2006
    Assignee: Acushnet Company
    Inventors: Manjari Kuntimaddi, Shenshen Wu
  • Patent number: 7115703
    Abstract: Golf balls comprising thermoplastic, thermoset, castable, or millable compositions are presently disclosed. These compositions comprise reaction products of polyacids and polyamines. The polyacid is chosen from polymerized fatty polyacids and polyacid telechelics. These compositions can be used in any one or more portions of the golf balls, such as inner center, core, inner core layer, intermediate core layer, outer core layer, intermediate layer, cover, inner cover layer, intermediate cover layer, and/or outer cover layer.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: October 3, 2006
    Assignee: Acushnet Company
    Inventors: Manjari Kuntimaddi, Shenshen Wu
  • Patent number: 7105628
    Abstract: Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise reaction products of polyisocyanates and telechelic polymers having isocyanate-reactive end-groups such as hydroxyl groups and/or amine groups. These elastomer compositions can be used in any one or more portions of the golf balls, such as inner center, core, inner core layer, intermediate core layer, outer core layer, intermediate layer, cover, inner cover layer, intermediate cover layer, and/or outer cover layer.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: September 12, 2006
    Assignee: Acushnet Company
    Inventors: Manjari Kuntimaddi, Shenshen Wu
  • Publication number: 20060189787
    Abstract: The present invention is directed to golf items formed from a sulfur-containing composition. The sulfur-containing composition comprises the reaction product of four reactable components: (a) polyisocyanates and polyisothiocyanates; (b) polyols and polythiols; (c) epoxides and episulfides; and (d) amines and anilines; wherein at least one of the four reactable components contains a sulfur atom. The present invention also relates to methods, e.g., reaction injection molding processes and castable molding processes, for forming such golf items.
    Type: Application
    Filed: April 27, 2006
    Publication date: August 24, 2006
    Inventor: Manjari Kuntimaddi
  • Patent number: 7087699
    Abstract: This invention is directed to a sulfur-containing composition that can be used as golf items such as golf ball components and golf equipments. The sulfur-containing composition comprises the reaction product of four reactable components: (a) polyisocyanates and polyisothiocyanates; (b) polyols and polythiols; (c) epoxides and episulfides; and (d) amines and anilines; at least one of the four reactable components contains a sulfur atom. This invention also relates to a reaction injection molding process, a castable molding process and other methods using the sulfur-containing composition.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: August 8, 2006
    Assignee: Acushnet Company
    Inventor: Manjari Kuntimaddi
  • Publication number: 20060173139
    Abstract: Golf equipment having at least one portion formed from amine-adduct modified polyurea compositions, including epoxy-silicone modified polyurea compositions, epoxy modified polyurea compositions, silicone modified polyurea compositions, and polyurea compositions including polyamine/carbonyl adducts and/or amine-modified adducts having backbones based on polyfunctional acrylates or methacrylates or caprolactone monomers or oligomers.
    Type: Application
    Filed: March 13, 2006
    Publication date: August 3, 2006
    Inventors: Shawn Ricci, Shenshen Wu, Manjari Kuntimaddi, Kevin Harris, Murali Rajagopalan
  • Publication number: 20060030680
    Abstract: A golf ball having a core and at least one layer disposed about the core is disclosed. The core may further include a center and an outer core layer disposed about the center. The layer is formed from a composition having a prepolymer and a curative, the prepolymer being formed from an isocyanate and a blend of two or more telechelic polyahls, wherein a first telechelic polyahl has a first functionality of 3 or greater, which is greater than a second functionality of a second telechelic polyahl in the blend. The layer displays an enhanced shear resistance.
    Type: Application
    Filed: October 5, 2005
    Publication date: February 9, 2006
    Inventor: Manjari Kuntimaddi