Method And System For Utilizing Radio-Opaque Fillers In Multiple Layers Of Golf Balls
US-2024424351-A1 · Dec 26, 2024 · US
Golf ball
US9776046B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9776046-B2 |
| Application number | US-201514977716-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 22, 2015 |
| Priority date | Dec 22, 2015 |
| Publication date | Oct 3, 2017 |
| Grant date | Oct 3, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The invention provides a golf ball having a core and a cover of one or more layer encasing the core, wherein the cover has an outermost layer molded of a thermoplastic material selected from the group consisting of polyurethane, polyurea and mixtures thereof and, letting the absorbance peak heights near a wave number of 1512 cm −1 measured by the attenuated total reflectance method in Fourier transform infrared absorption spectroscopy (FT-IR/ATR spectroscopy) at an outside portion and an inside portion of the outermost cover layer be respectively P 1 and P 2 , the value P 1 -P 2 is at least 0.02.
First claim
Opening claim text (preview).
The invention claimed is: 1. A golf ball comprising a core and a cover of one or more layer encasing the core, wherein the cover has an outermost layer molded of an ether type thermoplastic polyurethane material and the surface of the cover is treated with an isocyanate compound comprising polymethylene polyphenyl polyisocyanate that is free of organic solvent, and the pickup of the isocyanate compound is in the range of 0.01 to 1.0 g, and wherein, letting the absorbance peak heights near a wave number of 1512 cm −1 measured by the attenuated total reflectance method in Fourier transform infrared absorption spectroscopy (FT-IR/ATR spectroscopy) at an outside portion and an inside portion of the outermost cover layer be respectively P 1 and P 2 , the value P 1 -P 2 is at least 0.02. 2. The golf ball of claim 1 , wherein the value P 1 -P 2 obtained from the absorbance peak heights P 1 and P 2 at the outside portion and inside portion of the outermost cover layer is from 0.05 to 0.35. 3. The golf ball of claim 1 , wherein the absorbance peak height P 1 at the outside portion of the outermost cover layer is from 0.15 to 0.40. 4. The golf ball of claim 1 , wherein the absorbance peak height P 2 at the inside portion of the outermost cover layer is from 0 to 0.10. 5. The golf ball of claim 1 wherein, letting the absorbance peak height near the wave number 2280 cm −1 and the absorbance peak height near the wave number 2840 cm −1 measured by FT-IR/ATR spectroscopy at the outside portion of the outermost cover layer be respectively Q 1 and R 1 , the value Q 1 /R 1 is 0.20 or less. 6. The golf ball of claim 1 , wherein the isocyanate compound is a mixture of 4,4′-diphenylmethanediisocyanate and polymethylene polyphenyl polyisocyanate. 7. The golf ball of claim 1 , wherein the value P 1 -P 2 is from 0. 169 to 0.227. 8. The golf ball of claim 1 , wherein, letting the absorbance peak height near the wave number 2280 cm −1 and the absorbance peak height near the wave number 2840 cm −1 measured by FT-IR/ATR spectroscopy at the outside portion of the outermost cover layer be respectively Q 1 and R 1 , the value Q 1 /R 1 is from 0.042 to 0.106.
Assignees
Inventors
Classifications
Scuff resistance · CPC title
- A63B37/0074Primary
Two piece balls, i.e. cover and core · CPC title
Spin rate · CPC title
Covers · CPC title
Three piece balls, i.e. cover, intermediate layer and core · CPC title
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Frequently asked questions
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- What does patent US9776046B2 cover?
- The invention provides a golf ball having a core and a cover of one or more layer encasing the core, wherein the cover has an outermost layer molded of a thermoplastic material selected from the group consisting of polyurethane, polyurea and mixtures thereof and, letting the absorbance peak heights near a wave number of 1512 cm −1 measured by the attenuated total reflectance method in Fourier …
- Who is the assignee on this patent?
- Bridgestone Sports Co Ltd
- 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 Oct 03 2017 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).