1
Shenshen Wu: Polyurethane golf ball. Acushnet Co, Pennie & Edmonds, August 2, 1994: US05334673 (554 worldwide citation)

The golf ball is made from a composition of a polyurethane prepolymer and a slow-reacting polyamine curing agent and/or a difunctional glycol. The slow-reacting polyamine curing agents and difunctional glycols are 3,5-dimethylthio-2,4-toluenediamine; 3,5-dimethylthio-2,6-toluenediamine; N,N'-dialkyl ...


2
Shenshen Wu: Polyurea composition suitable for a golf ball cover. Acushnet Company, Pennie & Edmonds, January 16, 1996: US05484870 (419 worldwide citation)

A novel polyurea composition comprising the reaction product of an organic isocyanate and an organic amine, each having at least two functional groups is disclosed. Golf balls employing covers formed of the polyurea composition also are disclosed.


3
Shenshen Wu, Murali Rajagopalan: Golf ball covers. Acushnet Company, Pennie & Edmonds, December 2, 1997: US05692974 (279 worldwide citation)

This invention relates to methods of using cationic ionomers in golf ball cover compositions. Further, this invention relates to golf balls which have covers and cores and which incorporate urethane ionomers. The polyurethane golf ball cover has improved resiliency and initial velocity through the a ...


4
Shenshen Wu: Urethane golf ball covers using epoxy compounds with a polyamine or glycol as curing agents. Acushnet Company, Pennie & Edmonds, June 1, 1999: US05908358 (247 worldwide citation)

A golf ball cover is produced from a composition comprising an isocyanate-functional prepolymer and a curing agent of a polyamine or glycol, and an organic compound having at least one epoxy group such as the diglycidyl ether of bisphenol A.


5
Robert A Brown, Shenshen Wu: Method of molding polyurethane covered golf balls. Acushnet Company, Lucas & Just, April 9, 1991: US05006297 (208 worldwide citation)

A polyurethane covered golf ball is made by allowing the polyurethane cover stock material to partially cure in an open mold and subsequently molding a golf ball product. The molding is done by first molding a smooth-surfaced golf ball product in a smooth-walled fixed-pin mold and then, in a second ...


6
John Calabria, Dean A Snell, Shenshen Wu: Method for forming polyurethane cover on golf ball core. Acushnet Company, Pennie & Edmonds, March 31, 1998: US05733428 (186 worldwide citation)

A method and apparatus for making a golf ball of selected instruction having an encapsulated core or a non-treated core and a polyurethane cover of selected composition in which equipment is employed for aligning, centering and locating the core in relationship with the molding of the cover thereon.


7
Shenshen Wu, Craig A Wilson, Murali Rajagopalan: Golf balls comprising light stable materials and methods of making the same. Acushnet Company, Swidler Berlin Shereff Friedman, December 28, 2004: US06835794 (177 worldwide citation)

Golf equipment having improved cut and shear resistance that includes a polyurea composition, preferably saturated, formed of a polyurea prepolymer and a curing agent, wherein the polyurea prepolymer includes an isocyanate and a polyether amine, and wherein the curing agent includes a hydroxy-termin ...


8
Shenshen Wu: Golf ball comprising saturated polyurethanes and methods of making same. Acushnet Company, William B Lacy, January 14, 2003: US06506851 (160 worldwide citation)

A golf ball comprising a core and a cover layer wherein the cover is formed of a polyurethane composition comprising a saturated prepolymer comprising an initiated polycaprolactone and a saturated diisocyanate, and a curing agent.


9
Shenshen Wu: Polyurethane golf ball with improved resiliency. Acushnet Company, April 3, 2001: US06210294 (124 worldwide citation)

A golf ball comprising a center, a cover, and optionally, at least one intermediate layer disposed between the center and the cover, wherein at least one of the center, the cover, and the at least one intermediate layer is formed with a polyurethane composition comprising a reaction product of a pre ...


10
Shenshen Wu: Golf ball comprising saturated polyurethanes and methods of making the same. Acushnet Company, Swidler Berlin Shereff Friedman, November 5, 2002: US06476176 (94 worldwide citation)

The invention provides a golf ball having a cover and intermediate layers comprising in whole or in part of a saturated polyurethane. The saturated polyurethane may be blended with conventional materials employed to form golf balls, cores and intermediate layers.