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Colored golf ball

a golf ball and color technology, applied in the field of colored golf balls, can solve the problems of not having a lustrous and elegant feel of pastel colored golf balls, not being able to achieve elegant appearance, and not being able to achieve the effect of lustrous and elegant appearance, excellent visibility and excellent appearan

Inactive Publication Date: 2012-02-09
BRIDGESTONE SPORTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a colored golf ball with excellent visibility and stylishness. The ball has a lustrous and elegant appearance, even in its pastel color. The inventors found that by using a specific resin composition and coating it with a polarizing pigment-containing paint, they could achieve a color tone that is lustrous and has a sense of transparency. The resin composition includes a thermoplastic resin, a color pigment or dye, titanium oxide, and a lubricant. The paint coat contains a polarizing pigment. The color pigment can be selected from a variety of options, such as red, blue, yellow, green, purple, and black. The resin composition is formulated as follows: thermoplastic resin, color pigment or dye, titanium oxide, and lubricant. The ball has a surface with a color tone that is in the L*a*b* color space, with a luster and transparency. The golf ball is endowed with outstanding visibility and stylishness.

Problems solved by technology

However, pastel balls contain a large amount of titanium oxide in the material forming the outermost layer, and thus often end up having a non-transparent (matte) shade of color.
Even when a metal oxide-containing paint is applied to the outermost layer of such a ball, this does not produce a shade of color having a lustrous, transparent feel, and so an elegant appearance is not achieved.
However, none of these provide pastel colored golf balls having a lustrous and elegant feel.

Method used

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  • Colored golf ball
  • Colored golf ball

Examples

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examples

[0050]The following Examples are provided to illustrate the invention, and are not intended to limit the scope thereof.

examples 1 to 4

Comparative Examples 1 to 4

[0051]A rubber composition having a common formulation for each example of the invention and each comparative example was prepared, masticated in a kneader or roll mill, then fashioned into a core under specific vulcanization conditions. Next, in each example, the intermediate layer-forming material shown in Table 1 and the outer cover layer-forming material shown in Table 2 were successively injection-molded over the resulting core to form a ball. A two-component curing urethane paint of the following formulation was then spray-painted onto the surface of the ball and dried, thereby producing colored golf balls in the respective examples of the invention and comparative examples. The numbers in the resin mixing material formulations shown in Tables 1 and 2 indicate parts by weight.

Rubber Formulation

[0052]

Polybutadiene rubber100parts by weightZinc acrylate29parts by weightPeroxide1.2parts by weightAntioxidant0.1part by weightZinc oxide26.7parts by weightZi...

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PUM

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Abstract

In a colored golf ball having a core, a cover of at least one layer encasing the core and a coat of paint applied to a surface of an outermost layer of the cover, the outermost cover layer is formed of a resin composition which includes (a) a thermoplastic resin, (b) a color pigment or dye, (c) titanium oxide, and (d) a lubricant. The resin composition has a total light transmittance of at least 1.0 but not more than 40, and a diffuse transmittance of at least 1.0 but not more than 40. The paint coat contains a polarizing pigment. The ball has an excellent visibility and stylishness and, in spite of being pastel-colored, is endowed with an appearance that is lustrous and elegant.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No. 2010-176316 filed in Japan on Aug. 5, 2010, the entire contents of which are hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a colored golf ball.[0004]2. Prior Art[0005]Not all golf balls lately are white; a variety of colored balls have appeared on the market in response to golfer's preferences. In particular, highly stylish colored golf balls and colored golf balls having an elegant feel are being developed to suit the tastes of women golfers.[0006]Colored balls with an elegant appearance that are currently sold on the market include balls having a fluorescent outermost layer coated on the surface with paint containing a polarizing pigment. Pastel colored golf balls have also been around for some time. However, pastel balls contain a large amount of titanium o...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63B37/12
CPCA63B37/0022A63B43/008A63B37/00221
Inventor IIZUKA, KAETAKEHANA, EIJI
Owner BRIDGESTONE SPORTS
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