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Table tennis rubber and table tennis bats

A table tennis and rubber technology, applied in the field of table tennis rubber and table tennis rackets, to achieve the effect of improving stability and improving ball wiping characteristics

Active Publication Date: 2020-12-18
MIZUNO CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for example, there is the following problem: Even if the impact feeling of the table tennis racket felt by the contestant can be improved in relatively fast techniques such as smashing, but in techniques other than smashing and cutting the ball, the relative speed is relatively slow. In the technique, it may not be able to improve the impact feeling of the table tennis racket felt by the contestants

Method used

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  • Table tennis rubber and table tennis bats
  • Table tennis rubber and table tennis bats

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097]The following ingredients were mixed: 100 parts by weight of natural rubber (SVR-CV60), 50 parts by weight of plasticizer (a) (powder wax 2H-12, manufactured by LionSpecialty Chemicals Co., Ltd.), magnesium carbonate (Gold Star, manufactured by Kamijima Chemical Industry Co., Ltd.) 30 parts by weight, 3 parts by weight of activated zinc oxide (AZO, manufactured by Zhengdong Chemical Co., Ltd.), 3.5 parts by weight of zinc oxide (the second type, manufactured by Zhengdong Chemical Co., Ltd.), kneaded at 60°C for 30 minutes using a 3L kneader , so as to obtain a kneaded product without crosslinking agent. Then, the following components were mixed with the above-mentioned kneaded product not containing a crosslinking agent: 6.5 parts by weight of sulfur (fine powder sulfur #200, manufactured by Hosoi Chemical Co., Ltd.), a sulfenamide-based vulcanization accelerator (NOCCELER CZ, Ouchi Shinko Chemical Co., Ltd.) 1.3 parts by weight, guanidine vulcanization accelerator (NOCC...

Embodiment 2

[0099] Replace plasticizer (a), adopt plasticizer (b) (powder wax 2H-08A, LION SPECIALTY CHEMICALS company system) 45 parts by weight, the addition of magnesium carbonate (Venus, Kamijima chemical industry company system) is changed to 20 parts by weight, except that, it carried out similarly to Example 1, and obtained the elastic layer. For the resulting elastic layer, the loss coefficient tanδ was determined 700 , the rate of change of the loss coefficient, the elastic storage rate E' and the elongation at break, and carry out the above sensory evaluation. The results are shown in Table 1. In addition, Table 2 shows the physical properties of the plasticizers. In addition, the loss coefficient tanδ 900 and the loss coefficient tanδ 500 are 0.0130 and 0.0120, respectively.

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Abstract

Table tennis rubber contains an elastic layer. Loss coefficient tanδ of the elastic layer at a frequency of 700 Hz 700 0.02 or less, and the change rate of the loss coefficient in the frequency range of 500 Hz to 900 Hz is 1.10 or less.

Description

technical field [0001] The invention relates to a table tennis rubber and a table tennis racket. Background technique [0002] On the surface of the racket part (racket main body) of the table tennis racket, rubber for table tennis is provided as the striking surface of the table tennis ball. As rubber for table tennis, for example, a sheet in which solid rubber as an uppermost layer and spongy interlayer rubber are laminated is known. [0003] In Japanese Patent Application Laid-Open No. 04-050247, there is described an elastic body which can be used in rubber or sponge of a table tennis racket and can reduce the loss of collision energy. [0004] In table tennis skills, there are various styles of play such as pulling the ball, smashing the ball, and cutting the ball. Depending on the style of play, the relative speed of the table tennis racket and the table tennis ball will change when it comes into contact. Therefore, for example, there is the following problem: Even i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A63B59/45A63B102/16
CPCA63B59/45A63B2209/00A63B2102/16C08L7/00C08L21/00C08K2003/267C08K2003/2296C08K3/06C08K3/011C08K5/0025C08K5/44C08K5/31C08K5/0016C08L9/00C08L91/00C08K3/22C08K5/47C08K5/40
Inventor 樋口直矢佐藤充森田彰間瀬昭雄脇坂治
Owner MIZUNO CORPORATION
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