Method And System For Utilizing Radio-Opaque Fillers In Multiple Layers Of Golf Balls
US-2024424351-A1 · Dec 26, 2024 · US
Golf ball
US8998749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8998749-B2 |
| Application number | US-201213599502-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 30, 2012 |
| Priority date | Aug 31, 2011 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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Abstract
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A golf ball includes a spherical core and a cover covering the spherical core, wherein the cover is formed from a polyurethane composition containing a polyurethane elastomer as a resin component, the polyurethane composition has a shear loss modulus G″ of more than 5.03×10 6 Pa and 1.17×10 8 Pa or less when measured in a shear mode using a dynamic viscoelasticity measuring apparatus at the conditions of the temperature of 0° C., and the oscillation frequency of 10 Hz, the golf ball has a hardness distribution that R 2 of a linear approximate curve determined by a least-squares method is 0.95 or more, when plotting center hardness (JIS-C) of the spherical core, hardness (JIS-C) measured at intervals of 2.5 mm from the center of the spherical core, surface hardness (JIS-C) of the spherical core, and slab hardness (JIS-C) of the cover versus distances from the center of the spherical core.
First claim
Opening claim text (preview).
What is claimed is: 1. A golf ball comprising a spherical core and a cover covering the spherical core, wherein the cover is formed from a polyurethane composition containing a polyurethane elastomer as a resin component, the polyurethane elastomer is formed by using 1,4-bis(isocyanatomethyl)cyclohexane as a polyisocyanate component, and the polyurethane composition has a shear loss modulus G″ of more than 5.03×10 6 Pa and 1.17×10 8 Pa or less when measured in a shear mode using…
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Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
- A63B37/0074Primary
Human Necessities · mapped topic
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- What does patent US8998749B2 cover?
- A golf ball includes a spherical core and a cover covering the spherical core, wherein the cover is formed from a polyurethane composition containing a polyurethane elastomer as a resin component, the polyurethane composition has a shear loss modulus G″ of more than 5.03×10 6 Pa and 1.17×10 8 Pa or less when measured in a shear mode using a dynamic viscoelasticity measuring apparatus at the c…
- Who is the assignee on this patent?
- Tarao Toshiyuki, Mikura Chiemi, Fushihara Kazuhisa, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification A63B37/0074. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Apr 07 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).