MAINTENANCE METHOD OF BOWLING BALL, PLASTICIZER
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United States of America
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Feb 20, 2020
app pub date -
Aug 8, 2019
filing date -
Aug 8, 2019
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Abstract
The purpose of the present invention is to provide a maintenance method for restoring the flexibility of a surface layer of a bowling ball in which the flexibility of the surface layer is lost by volatilization or elution of a plasticizer. In order to solve the above-mentioned problems, a maintenance method of bowling ball is provided, characterized in that a plasticizer is applied to a surface layer of the bowling ball.
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