US 11,717,727 B1
Process for incorporating graphene into a core of a golf ball
Vijay Chavan, Vista, CA (US); and David Bartels, Carlsbad, CA (US)
Assigned to Topgolf Callaway Brands Corp., Carlsbad, CA (US)
Filed by Topgolf Callaway Brands Corp., Carlsbad, CA (US)
Filed on Feb. 3, 2023, as Appl. No. 18/105,443.
Application 18/105,443 is a continuation of application No. 17/491,011, filed on Sep. 30, 2021, granted, now 11,571,610.
Application 17/491,011 is a continuation of application No. 17/090,754, filed on Nov. 5, 2020, granted, now 11,148,012, issued on Oct. 19, 2021.
Application 17/090,754 is a continuation of application No. 16/703,728, filed on Dec. 4, 2019, granted, now 10,828,535, issued on Nov. 10, 2020.
Application 16/703,728 is a continuation of application No. 16/403,203, filed on May 3, 2019, granted, now 10,500,446, issued on Dec. 10, 2019.
Application 16/403,203 is a continuation of application No. 16/105,125, filed on Aug. 20, 2018, granted, now 10,279,220, issued on May 7, 2019.
Application 16/105,125 is a continuation of application No. 15/782,666, filed on Oct. 12, 2017, granted, now 10,052,524, issued on Aug. 21, 2018.
Application 15/782,666 is a continuation in part of application No. 15/705,011, filed on Sep. 14, 2017, granted, now 10,039,959, issued on Aug. 7, 2018.
Application 15/705,011 is a continuation in part of application No. 15/436,169, filed on Feb. 17, 2017, granted, now 9,789,366, issued on Oct. 17, 2017.
Claims priority of provisional application 62/401,034, filed on Sep. 28, 2016.
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 37/06 (2006.01); A63B 37/00 (2006.01); A63B 45/00 (2006.01); C08K 3/04 (2006.01); C08L 9/00 (2006.01); C08K 3/22 (2006.01); C08K 5/098 (2006.01); C08K 5/14 (2006.01)
CPC A63B 37/0051 (2013.01) [A63B 37/0031 (2013.01); A63B 37/0043 (2013.01); A63B 37/0045 (2013.01); A63B 37/0054 (2013.01); A63B 37/0062 (2013.01); A63B 37/0064 (2013.01); A63B 37/0074 (2013.01); A63B 37/0075 (2013.01); A63B 37/0076 (2013.01); A63B 37/0092 (2013.01); A63B 45/00 (2013.01); C08K 3/041 (2017.05); C08K 3/042 (2017.05); C08K 3/22 (2013.01); C08K 5/098 (2013.01); C08K 5/14 (2013.01); C08L 9/00 (2013.01); C08K 2003/2296 (2013.01); C08K 2201/006 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for forming a golf ball with a graphene core, the method comprising:
mixing a graphene masterbatch material with a polybutadiene material, zinc diacrylate, zinc oxide, and a peroxide initiator to form a core mixture, wherein the graphene masterbatch material comprises graphene in an amount from 0.1 to 80.0 weight percent of the graphene masterbatch material mixed with a carrier polymer in an amount from 99.9 to 20 weight percent of the graphene masterbatch material; and
compression molding a core from the core mixture, wherein the core mixture comprises 40-90 weight percent of polybutadiene, 0.4 to 2.5 weight percent graphene material, 1-30 weight percent polyisoprene, 10-50 weight percent zinc diacrylate, 1-30 weight percent zinc oxide, 1-20 weight percent zinc stearate, and 0.1-10 weight percent peroxide initiator;
injection molding a mantle layer over the core; and
forming a cover over the mantle layer.