Resin composition for golf ball, and golf ball
US-2019388735-A1 · Dec 26, 2019 · US
Resin composition for golf balls, and golf ball
US10994174B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10994174-B2 |
| Application number | US-201816154827-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 9, 2018 |
| Priority date | Nov 28, 2017 |
| Publication date | May 4, 2021 |
| Grant date | May 4, 2021 |
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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 resin composition for golf balls is made of (A) polyurethane or polyurea and (B) a styrene resin material, component (B) being included in an amount of 0.5 to 50 parts by weight per 100 parts by weight of component (A). In a golf ball having a core and a cover of one or more layer encasing the core, at least one cover layer is formed of this resin composition. The resin composition is especially useful as a golf ball cover material because the ball does not fly too far and is easier to control on approach shots, yet does not sacrifice distance on shots with a driver.
First claim
Opening claim text (preview).
The invention claimed is: 1. A golf ball comprising a core and a cover of one or more layers encasing the core, wherein at least one layer of the cover is formed of a resin composition comprising: (A) polyurethane or polyurea, and (B) a styrene resin material, wherein component (A) is the primary component and component (B) is included in an amount of from 0.5 to 10 parts by weight per 100 parts by weight of component (A), and wherein component (B) is high-impact polystyrene resin (HIPS). 2. The golf ball of claim 1 , wherein component (A) is a thermoplastic polyurethane. 3. The golf ball of claim 1 , wherein component (A) has a material hardness of 55 or less on the Shore D hardness scale. 4. The golf ball of claim 1 , wherein component (B) has a rebound resilience, as measured in accordance with JIS-K 6255, of 60% or less. 5. The golf ball of claim 1 , wherein component (B) has a flexural modulus, as measured in accordance with JIS-K 7171, of not more than 3,500 MPa. 6. The golf ball of claim 1 , further comprising (C) an isocyanate compound. 7. The golf ball of claim 6 , wherein component (C) is included in an amount of from 0.1 to 20 parts by weight per 100 parts by weight of component (A). 8. The golf ball of claim 1 , wherein the resin composition has a Shore D hardness of not more than 55.
Assignees
Inventors
Classifications
- A63B37/0023Primary
Covers · CPC title
Polyurethanes · CPC title
Three piece balls, i.e. cover, intermediate layer and core · CPC title
Rebound resilience · CPC title
Deflection or compression · CPC title
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Frequently asked questions
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- What does patent US10994174B2 cover?
- A resin composition for golf balls is made of (A) polyurethane or polyurea and (B) a styrene resin material, component (B) being included in an amount of 0.5 to 50 parts by weight per 100 parts by weight of component (A). In a golf ball having a core and a cover of one or more layer encasing the core, at least one cover layer is formed of this resin composition. The resin composition is especia…
- Who is the assignee on this patent?
- Bridgestone Sports Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification A63B37/0023. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue May 04 2021 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).