US 11,717,726 B1
Golf ball cover with silane coupling agent
Vijay Chavan, Oceanside, CA (US); and Hong G. Jeon, Carlsbad, CA (US)
Assigned to Topgolf Callaway Brands Corp., Carlsbad, CA (US)
Filed by Topgolf Callaway Brands Corp., Carlsbad, CA (US)
Filed on Jan. 6, 2023, as Appl. No. 18/94,246.
Application 18/094,246 is a continuation of application No. 17/881,891, filed on Aug. 5, 2022, granted, now 11,547,907.
Application 17/881,891 is a continuation of application No. 17/504,033, filed on Oct. 18, 2021, granted, now 11,406,877, issued on Aug. 9, 2022.
Application 17/504,033 is a continuation of application No. 16/933,841, filed on Jul. 20, 2020, granted, now 11,148,010, issued on Oct. 19, 2021.
Claims priority of provisional application 62/717,486, filed on Aug. 10, 2018.
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 37/06 (2006.01); A63B 37/00 (2006.01); C08L 101/00 (2006.01); C08L 53/00 (2006.01)
CPC A63B 37/0024 (2013.01) [A63B 37/0031 (2013.01); A63B 37/0033 (2013.01); A63B 37/0044 (2013.01); A63B 37/0045 (2013.01); A63B 37/0076 (2013.01); A63B 37/00922 (2020.08); C08L 53/00 (2013.01); C08L 101/00 (2013.01); A63B 37/0074 (2013.01); A63B 37/0075 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A golf ball comprising:
a core comprising a polybutadiene material;
an inner mantle layer disposed over the core, the inner mantle layer having a Shore D plaque hardness ranging from 35 to 77;
an outer mantle layer disposed over the inner mantle layer, the outer mantle layer has a Shore D plaque hardness ranging from 55 to 75; and
a cover layer disposed over the outer mantle layer, the cover composed of a non- or partially neutralized copolymeric or terpolymeric ionomer, a hydroxyl-functionalized styrenic block copolymer and a silane coupling agent (SCA), and the cover layer has a Shore A hardness less than 90, wherein the SCA has an organic functional group selected from the group consisting of epoxy, amino, vinyl, (meth)acryloxy, isocyanate, and mercato.