Patents by Inventor Paul M. Gendreau

Paul M. Gendreau 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 and method of making same
    Patent number: 5020803
    Abstract: A golf ball with a low spin rate is made by covering the center with a layer of uncured rubber, curing the rubber layer to make a rubber shell about the core, and then winding elastic threads about the cured rubber shell to form a golf ball core. A golf ball cover is then applied to the core to form a golf ball.The center is either a solid rubber sphere or a liquid-filled hollow envelope. The thickness of the rubber shell is between 0.16 cm and 0.64 cm.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: June 4, 1991
    Assignee: Acushnet Company
    Inventors: Paul M. Gendreau, Lauro C. Cadorniga
  • Polybutadiene golf ball product
    Patent number: 4955613
    Abstract: The golf ball product is made from two polybutadienes, each having a Mooney viscosity of below about 50 and a cis-1,4 content of greater than about 40%. One polybutadiene is nickel- or cobalt-catalyzed, while the other is lanthanide-catalyzed. The golf ball product includes a mix of the two polybutadienes, a metal salt of an unsaturated carboxylic acid and a free radical initiator.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: September 11, 1990
    Assignee: Acushnet Company
    Inventors: Paul M. Gendreau, Lauro C. Cadorniga
  • Golf ball composition
    Patent number: 4715607
    Abstract: A solid golf ball is made using zinc diacrylate to crosslink polybutadiene. A small amount of zinc dimethacrylate is added and results in a golf ball of higher initial velocity. The amount of zinc dimethacrylate is between 0.1% to 2.0% by weight of the combined total of zinc diacrylate and zinc dimethacrylate. The golf ball product is suitably a one piece golf ball or the core of a two piece golf ball.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: December 29, 1987
    Assignee: Acushnet Company
    Inventors: Francisco M. Llort, Paul M. Gendreau, Raymond A. Berard
  • Process for curing a polymer and product thereof
    Patent number: 4692497
    Abstract: A process for curing a diene polymer including polybutadiene and a metal salt of an alpha, beta ethylenically unsaturated acid using at least two free radical initiators where one initiator has a half life about three times greater than the half life of the other initiator at the same temperature.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: September 8, 1987
    Assignee: Acushnet Company
    Inventors: Paul M. Gendreau, Francisco M. Llort, Raymond A. Berard
  • Process for making a solid golf ball
    Patent number: 4546980
    Abstract: A process of making a superior solid golf ball is disclosed. Two free radical initiators having different reactivities are used. A surprising and unexpected increase in initial velocity is obtained.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: October 15, 1985
    Assignee: Acushnet Company
    Inventors: Paul M. Gendreau, Francisco M. Llort, Raymond A. Berard