Golf ball

a golf ball and ball technology, applied in the field of golf balls, can solve the problems of prior-art golf balls lacking satisfactory durability to “surface loss", and difficult to achieve good ball durability in long-term use. , to achieve the effect of shortening the vulcanization time, reducing the spin rate, and increasing the distan

Inactive Publication Date: 2014-03-13
BRIDGESTONE SPORTS
View PDF15 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]Accordingly, the object of the present invention is to provide a golf ball which has a reduced spin rate and thus can achieve an increased distance, which shortens the vulcanization time for the core-forming rubber composition and thus improves productivity, and which has a good durability even in long-term use.

Problems solved by technology

However, when zinc methacrylate is used in this way in a core-forming rubber composition, achieving good ball durability in long-term use has been difficult.
However, here too, when zinc acrylate is used in the core-forming rubber composition, achieving good ball durability in long-term use has been difficult.
However, this prior-art golf ball lacks a satisfactory durability to “surface loss” when hit with the sharp portion of a clubhead, such as the leading edge of an iron.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Golf ball
  • Golf ball
  • Golf ball

Examples

Experimental program
Comparison scheme
Effect test

examples

[0101]The following Examples and Comparative Examples are provided to illustrate the invention, and are not intended to limit the scope thereof.

examples 1 to 4

, Comparative Examples 1 to 10

[0102]Rubber materials formulated as shown in Table 1 below were furnished for the fabrication of golf balls in the Examples and Comparative Examples. These rubber compositions were suitably mixed using a kneader or roll mill, then vulcanized under the temperature and time conditions in Table 1 to produce solid cores in the respective examples. Ingredient amounts in the table below are shown in parts by weight.

TABLE 1parts by weightNo. 1No. 2No. 3No. 4No. 5No. 6No. 7No. 8No. 9No. 10CoreBR018080808010010010010095formulationIR22002012.555SBR SL563207.515BR730100Perhexa C-400.60.60.6(40% dilution)Actual amount of0.240.240.24additionPercumyl D1.31.31.31.31.070.80.60.60.61.07Zinc oxide22.522.522.5222323669.523Antioxidant0.20.20.20.20.20.20.20.20.10.2Methacrylic acid23.523.523.52222.522.522.5Zinc methacrylate33Zinc acrylate3326Zinc stearate1.71.71.71.7Titanium oxide4VulcanizationTemperature (° C.)170170170170170170160160160170conditionsTime (minutes)181818182...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a golf ball endowed with an improved distance and durability. The ball has a core and a cover, the core being formed of a rubber composition containing a base rubber, a co-crosslinking agent, a crosslinking initiator and a metal oxide. The base rubber is a mixture of (A) polybutadiene with (B) styrene-butadiene rubber and/or isoprene rubber, the co-crosslinking agent is methacrylic acid, and the metal oxide is zinc oxide. The rubber composition contains the crosslinking initiator in an amount of from 1.2 to 5 parts by weight per 100 parts by weight of the base rubber.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a golf ball composed of a core and a cover. More specifically, the invention relates to a golf ball which has a reduced spin rate and thus can achieve an increased distance, which shortens the vulcanization time for the core-forming rubber composition and thus improves productivity, and which has a good durability even in long-term use.[0002]In contemplating the ball construction of golf balls intended for use in competition, to impart a flight performance and feel of the sort typically experienced when playing a round of golf, it is more desirable to use a two-piece solid golf ball than a one-piece ball. Particularly in golf balls composed of a core and a cover, conferring the ball with an increased distance owing to a reduced spin rate is one of the most desirable characteristics because it enables the game to be played with a competitive advantage.[0003]As is widely known, two-piece solid golf balls are composed of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(United States)
IPC IPC(8): A63B37/02
CPCA63B37/0018A63B37/0019A63B37/002A63B37/0022A63B37/0074A63B37/008A63B37/0083A63B37/0084A63B37/0029A63B37/0065A63B37/0051
Inventor OZAWA, YUICHIROARAI, DAISUKEHIGUCHI, HIROSHIOHIRA, TAKASHISATO, KATSUNORI
Owner BRIDGESTONE SPORTS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap