Patents by Inventor Murali Rajagapalan

Murali Rajagapalan 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).

  • Golf Ball Layers Formed of Polyurethane-Based and Polyurea-Based Compositions Incorporating Block Copolymers
    Publication number: 20090137342
    Abstract: A golf ball including a core and a cover, wherein cover is formed from a composition comprising the reaction product of a prepolymer including a soft-segment comprising an amine-terminated polyether and a hard segment including a uretdione of hexamethylene diisocyanate; and an amine-terminated curing agent; wherein the amine-terminated polyether has the structure: where x and z have a combined value of 3.6-8 and y is 9-50, R is an alkyl group having 1-20 carbons, a phenyl group, a cyclic group, or mixtures thereof, R1 is —(CH2)a—, where a is 1-10, a phenylene group, a cyclic group, or a mixture thereof, and R3 is hydrogen, a methyl group, or a mixture thereof.
    Type: Application
    Filed: August 20, 2008
    Publication date: May 28, 2009
    Inventors: Shenshen Wu, Murali Rajagapalan, Kevin M. Harris
  • Golf ball layers formed of polyurethane-based and polyurea-based compositions incorporating block copolymers
    Patent number: 7429629
    Abstract: Golf equipment having improved cut and shear resistance that includes a polyurea-based composition or polyurethane-based composition, preferably saturated and/or water resistant, formed of a prepolymer, a functionalized block copolymer, and optionally further cured or chain extended with a curing agent, where the prepolymer is incorporated at the terminal end of the functionalized block copolymer.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: September 30, 2008
    Assignee: Acushnet Company
    Inventors: Shenshen Wu, Murali Rajagapalan, Kevin M. Harris
  • Golf ball layers formed of polyurethane-based and polyurea-based compositions incorporating block copolymers
    Publication number: 20070197724
    Abstract: Golf equipment having improved cut and shear resistance that includes a polyurea-based composition or polyurethane-based composition, preferably saturated and/or water resistant, formed of a prepolymer, a functionalized block copolymer, and optionally further cured or chain extended with a curing agent, where the prepolymer is incorporated at the terminal end of the functionalized block copolymer.
    Type: Application
    Filed: April 18, 2007
    Publication date: August 23, 2007
    Inventors: Shenshen Wu, Murali Rajagapalan, Kevin Harris
  • Golf ball layers formed of polyurethane-based and polyurea-based compositions incorporating block copolymers
    Patent number: 7217764
    Abstract: Golf equipment having improved cut and shear resistance that includes a polyurea-based composition or polyurethane-based composition, preferably saturated and/or water resistant, formed of a prepolymer, a functionalized block copolymer, and optionally further cured or chain extended with a curing agent, where the prepolymer is incorporated at the terminal end of the functionalized block copolymer.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: May 15, 2007
    Assignee: Acushnet Company
    Inventors: Shenshen Wu, Murali Rajagapalan, Kevin M. Harris
  • Golf ball layers formed of polyurethane-based and polyurea-based compositions incorporating block copolymers
    Patent number: 7214738
    Abstract: Golf equipment having improved cut and shear resistance that includes a polyurea-based composition or polyurethane-based composition, preferably saturated and/or water resistant, formed of a prepolymer, a functionalized block copolymer, and optionally further cured or chain extended with a curing agent, where the prepolymer is incorporated at the terminal end of the functionalized block copolymer.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: May 8, 2007
    Assignee: Acushnet Company
    Inventors: Shenshen Wu, Murali Rajagapalan, Kevin M. Harris
  • Golf ball layers formed of polyurethane-based and polyurea-based compositions incorporating block copolymers
    Patent number: 7202303
    Abstract: Golf equipment having improved cut and shear resistance that includes a polyurea-based composition or polyurethane-based composition, preferably saturated and/or water resistant, formed of a prepolymer, a functionalized block copolymer, and optionally further cured or chain extended with a curing agent, where the prepolymer is incorporated at the terminal end of the functionalized block copolymer.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: April 10, 2007
    Assignee: Acushnet Company
    Inventors: Shenshen Wu, Murali Rajagapalan, Kevin M. Harris
  • Golf ball layers formed of polyurethane-based and polyurea-based compositions incorporating block copolymers
    Publication number: 20040262808
    Abstract: Golf equipment having improved cut and shear resistance that includes a polyurea-based composition or polyurethane-based composition, preferably saturated and/or water resistant, formed of a prepolymer, a functionalized block copolymer, and optionally further cured or chain extended with a curing agent, where the prepolymer is incorporated at the terminal end of the functionalized block copolymer.
    Type: Application
    Filed: July 28, 2004
    Publication date: December 30, 2004
    Inventors: Shenshen Wu, Murali Rajagapalan, Kevin M. Harris