公开(公告)号：US11938380B2

公开(公告)日：2024-03-26

申请号：US17839654

申请日：2022-06-14

Applicant: Acushnet Company

Inventor： Erin McDermott ,  Manjari Kuntimaddi ,  Dennis Britton

IPC: A63B37/06 ,  A63B37/00

CPC classification number: A63B37/00921 ,  A63B37/0032 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0045 ,  A63B37/0063 ,  A63B37/0075

Abstract: Golf balls having cores with increased hardness gradients are provided. The cores have an increased “positive” hardness gradient (or a “hard-to-soft” hardness) where the outer surface of the core is harder than the center. The increased positive hardness gradient can be achieved by introducing a water-releasing agent into the core rubber formulation during the curing process. The resulting golf balls have reduced spin and sufficient impact durability.

公开(公告)号：US20230310947A1

公开(公告)日：2023-10-05

申请号：US18193842

申请日：2023-03-31

Applicant: BRIDGESTONE SPORTS CO.,LTD.

Inventor： Hideo WATANABE

IPC: A63B37/00

CPC classification number: A63B37/0039 ,  A63B37/0033 ,  A63B37/0034 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0046

Abstract: In a multi-piece solid golf ball having a core, an envelope layer, an intermediate layer and a cover, the core is formed of one or more layer of a rubber composition; the envelope layer, intermediate layer and cover are each formed of a single layer of resin material; the hardness relationship among the layers satisfies the following two conditions:


material hardness of cover>material hardness of intermediate layer, and



material hardness of envelope layer≥surface hardness of core;

the ball additionally satisfies the condition:



envelope layer thickness (mm)×envelope layer material hardness (Shore D hardness) cover thickness (mm)×cover material hardness (Shore D hardness); and the core and ball have optimized deflections when subjected to a specific loading. This ball serves as a distance ball which enables a superior distance to be achieved on full shots with a driver and with irons.

公开(公告)号：US20230293948A1

公开(公告)日：2023-09-21

申请号：US18138254

申请日：2023-04-24

Applicant: Topgolf Callaway Brands Corp.

Inventor： Vijay Chavan ,  David Bartels

IPC: A63B37/00 ,  C08F36/06 ,  C01B32/182 ,  C08K3/04

CPC classification number: A63B37/0051 ,  C08F36/06 ,  C01B32/182 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0074 ,  A63B37/0076 ,  C08K3/042 ,  A63B37/0031 ,  A63B37/0065 ,  A63B37/0069 ,  A63B37/0075 ,  A63B37/00922 ,  A63B37/0092

Abstract: A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an inner core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an outer core comprising polybutadiene and graphene.

公开(公告)号：US11712605B2

公开(公告)日：2023-08-01

申请号：US17534453

申请日：2021-11-24

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Toshiyuki Takubo ,  Takahiro Sajima

IPC: A63B37/06 ,  A63B37/00 ,  C08L33/08 ,  C08K13/02

CPC classification number: A63B37/0075 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0063 ,  A63B37/0065 ,  A63B37/0087 ,  A63B37/00621 ,  A63B37/00622 ,  C08K13/02 ,  C08L33/08 ,  C08L2205/025 ,  C08L2205/03

Abstract: A golf ball includes a core, a mid layer, and a cover. An amount of compressive deformation C3 of the golf ball can be not less than 2.80 mm. The golf ball can satisfy the following mathematical formulas (1) and (2):

C1>(124.8−Hs)/11.5  (1)

C2−C1≥(−1/6*C1+(68−H2)/20+(5−Hd)/100)*T2  (2), where

C1 is an amount of compressive deformation (mm) of the core,
C2 is an amount of compressive deformation (mm) of a sphere including the core and the mid layer,
Hd is Hs−Ho,
Ho is a hardness (Shore C) of a center the core,
Hs is a hardness (Shore C) of a surface of the core,
H2 is a hardness (Shore D) of the mid layer, and
T2 is a thickness (mm) of the mid layer.

公开(公告)号：US20230181974A1

公开(公告)日：2023-06-15

申请号：US18108166

申请日：2023-02-10

Applicant: Acushnet Company

Inventor： Richard Westgate ,  Ian Coberly ,  Stephen K. Scolamiero

IPC: A63B37/00 ,  B29C43/20

CPC classification number: A63B37/0075 ,  A63B37/0045 ,  A63B37/0076 ,  B29C43/203 ,  A63B37/0064 ,  B29L2031/546

Abstract: Dual core golf ball constructions achieving consistent and repeatable concentricity by incorporating/using an assembly of dual core components comprising a solid spherical inner core component and three outer core components that are collectively compression molded about the solid spherical inner core component to create an outer core layer thereabout. The three outer core components include a first half-shell, a second half-shell; and a ring-shaped securing plate such that the solid spherical inner core component is immovably centered within the outer core layer. Each of the first half-shell, the ring-shaped securing plate, and the second half-shell is comprised of the same rubber composition(s) and possess strong cohesive and adhesive bonds at parting lines between the three molded assembly parts and collectively create an outer core layer having one or more uniform property profile, such as a hardness gradient throughout, without interruption at parting lines between the three outer core components.

公开(公告)号：US20190168078A1

公开(公告)日：2019-06-06

申请号：US16257145

申请日：2019-01-25

Applicant: Acushnet Company

Inventor： Michael J. Sullivan ,  Mark L. Binette ,  Douglas S. Goguen ,  Brian Comeau ,  Michael Michalewich ,  Shawn Ricci ,  John D. Farrell

IPC: A63B37/00 ,  A63B45/00

CPC classification number: A63B37/0063 ,  A63B37/0004 ,  A63B37/0039 ,  A63B37/004 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0047 ,  A63B37/0051 ,  A63B37/0058 ,  A63B37/0064 ,  A63B37/0066 ,  A63B37/0076 ,  A63B37/0091 ,  A63B37/0092 ,  A63B45/00 ,  A63B2037/065

Abstract: Golf balls having a multi-layered core made of a foamed composition are provided. The core assembly preferably includes a foam inner core (center) and surrounding outer core layer. Preferably, a polyurethane foam composition is used to form the foam center. The core layers have different hardness gradients and specific gravity values. The foamed inner core assembly includes a geometric center, outer surface (skin), and thermal barrier layer that helps protect the foamed center region from the negative effects of high temperatures used during the ball-manufacturing process. Non-foamed thermoset materials such as polybutadiene rubber may be used to form the thermal barrier layer. The foam cores have good resiliency, thermal stability, and durability over a wide temperature range. The ball further includes a cover that may be multi-layered.

公开(公告)号：US20180304123A1

公开(公告)日：2018-10-25

申请号：US16021129

申请日：2018-06-28

Applicant: Acushnet Company

Inventor： Michael J. Sullivan ,  Mark L. Binette ,  Brian Comeau ,  Michael Michalewich ,  Douglas S. Goguen ,  Shawn Ricci

IPC: A63B37/00

CPC classification number: A63B37/0076 ,  A63B37/0032 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0047 ,  A63B37/0049 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0066 ,  A63B37/0069 ,  A63B37/0075 ,  A63B37/0086 ,  A63B37/0091 ,  A63B37/0092

Abstract: Multi-layered golf balls having a dual-layered core and cover of at least one layer are provided. The dual-core construction includes a non-foamed inner core (center) made of a thermoplastic or thermoset composition such as polybutadiene rubber. An outer core layer comprising a foamed composition, such as polyurethane foam, is disposed about the inner core. In one version, the foamed outer core layer is made of a relatively soft foam composition having low flex modulus and density. The foamed outer core layer may specific gravity gradient within the layer, wherein the outer surface specific gravity is greater than the midpoint specific gravity. A cover may be disposed about the core structure. For example, an inner cover made of ethylene acid copolymer ionomer and outer cover made of polyurethane may be used.

公开(公告)号：US10080926B2

公开(公告)日：2018-09-25

申请号：US15387911

申请日：2016-12-22

Applicant: Acushnet Company

Inventor： Michael J. Sullivan ,  Mark L. Binette

IPC: A63B37/04 ,  A63B37/08 ,  A63B37/00

CPC classification number: A63B37/0051 ,  A63B37/0024 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0047 ,  A63B37/0054 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0066 ,  A63B37/0075 ,  A63B37/0076 ,  A63B37/0091 ,  A63B37/0092 ,  C08K3/10 ,  C08K5/098 ,  C08K5/101 ,  C08L23/0876

Abstract: Multi-piece golf balls containing a dual-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, and a surrounding outer core layer. The layers of the core structure may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof preferably dispersed in a thermoplastic polymeric matrix. Different plasticizer such as fatty acid esters may be used. The outer core layer is preferably formed from a thermoset composition such as polybutadiene. The resulting ball has high resiliency and good spin.

公开(公告)号：US10052524B1

公开(公告)日：2018-08-21

申请号：US15782666

申请日：2017-10-12

Applicant: Callaway Golf Company

Inventor： Vijay Chavan ,  David Bartels

IPC: A63B37/06 ,  A63B37/00 ,  A63B45/00 ,  C08K3/04 ,  C08L9/00

CPC classification number: A63B37/0051 ,  A63B37/0031 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0054 ,  A63B37/0062 ,  A63B37/0064 ,  A63B37/0074 ,  A63B37/0075 ,  A63B37/0076 ,  A63B37/0092 ,  A63B45/00 ,  C08K3/041 ,  C08K3/042 ,  C08K3/22 ,  C08K5/098 ,  C08K5/14 ,  C08K2003/2296 ,  C08K2201/006 ,  C08L9/00

Abstract: A method for forming a golf ball with a graphene core disclosed herein. The method includes mixing a graphene masterbatch material with a polybutadiene material 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.

公开(公告)号：US10010765B2

公开(公告)日：2018-07-03

申请号：US15367512

申请日：2016-12-02

Applicant: Acushnet Company

Inventor： Michael J. Sullivan ,  Mark L. Binette ,  Brian Comeau ,  Michael Michalewich ,  Douglas S. Goguen ,  Shawn Ricci

IPC: A63B37/02 ,  A63B37/00

CPC classification number: A63B37/0076 ,  A63B37/0032 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0047 ,  A63B37/0049 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0066 ,  A63B37/0069 ,  A63B37/0075 ,  A63B37/0086 ,  A63B37/0091 ,  A63B37/0092

Abstract: Multi-layered golf balls having a dual-layered core and cover of at least one layer are provided. The dual-core construction includes a non-foamed inner core (center) made of a thermoplastic or thermoset composition such as polybutadiene rubber. An outer core layer comprising a foamed composition, such as polyurethane foam, is disposed about the inner core. In one version, the foamed outer core layer is made of a relatively soft foam composition having low flex modulus and density. The foamed outer core layer may specific gravity gradient within the layer, wherein the outer surface specific gravity is greater than the midpoint specific gravity. A cover may be disposed about the core structure. For example, an inner cover made of ethylene acid copolymer ionomer and outer cover made of polyurethane may be used.