Golf ball
US-2018036599-A1 · Feb 8, 2018 · US
Golf ball
US10201731B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10201731-B2 |
| Application number | US-201715812714-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 14, 2017 |
| Priority date | Dec 22, 2016 |
| Publication date | Feb 12, 2019 |
| Grant date | Feb 12, 2019 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A golf ball 2 includes a core 4, a cover 8 positioned outside the core 4, and a paint film 10 positioned outside the cover 8. The paint film 10 includes an inner layer 12 and an outer layer 14 positioned outside the inner layer 12. A 10% modulus Mo of the outer layer 14 is lower than a 10% modulus Mi of the inner layer 12. A difference (Mi-Mo) between the modulus Mi and the modulus Mo is not less than 25.0 kgf/cm 2 . The cover 8 has a Shore D hardness Hc of not less than 50 and not greater than 65. The cover 8 has a thickness Tc of not less than 0.80 mm and not greater than 1.80 mm.
First claim
Opening claim text (preview).
What is claimed is: 1. A golf ball comprising a core, a cover positioned outside the core, and a paint film positioned outside the cover, wherein the paint film includes an inner layer and an outer layer positioned outside the inner layer, a 10% modulus Mo of the outer layer is lower than a 10% modulus Mi of the inner layer, a difference (Mi-Mo) between the modulus Mi and the modulus Mo is not less than 25.0 kgf/cm 2 , the cover has a Shore D hardness Hc of not less than 50 and not greater than 65, and the cover has a thickness Tc of not less than 0.80 mm and not greater than 1.80 mm. 2. The golf ball according to claim 1 , wherein the modulus Mi is not less than 100.0 kgf/cm 2 . 3. The golf ball according to claim 1 , wherein the modulus Mo is less than 100.0 kgf/cm 2 . 4. The golf ball according to claim 1 , wherein the inner layer has a thickness Ti of not less than 5 μm and not greater than 30 μm, and the outer layer has a thickness To of not less than 5 μm and not greater than 30 μm. 5. The golf ball according to claim 1 , further comprising a mid layer between the core and the cover. 6. The golf ball according to claim 1 , wherein the inner layer is formed from a resin composition, and a base resin of the resin composition is a polyurethane. 7. The golf ball according to claim 1 , wherein the outer layer is formed from a resin composition, and a base resin of the resin composition is a polyurethane. 8. The golf ball according to claim 1 , wherein the cover is formed from a resin composition, and a principal component of a base resin of the resin composition is an ionomer resin.
Assignees
Inventors
Classifications
with two or more layers, where at least one layer of a composition contains a polymer binder · CPC title
Layered products having a non-planar shape · CPC title
Use of rubber derived from conjugated dienes, as moulding material · CPC title
Copolymers of ethene (C08J2323/16 takes precedence) · CPC title
5 or more layers · CPC title
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Frequently asked questions
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- What does patent US10201731B2 cover?
- A golf ball 2 includes a core 4, a cover 8 positioned outside the core 4, and a paint film 10 positioned outside the cover 8. The paint film 10 includes an inner layer 12 and an outer layer 14 positioned outside the inner layer 12. A 10% modulus Mo of the outer layer 14 is lower than a 10% modulus Mi of the inner layer 12. A difference (Mi-Mo) between the modulus Mi and …
- Who is the assignee on this patent?
- Sumitomo Rubber Ind
- What technology area does this patent fall under?
- Primary CPC classification A63B37/0033. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Feb 12 2019 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).