JPS5651343A - Manufacture of hollow resilient regulation tennis ball - Google Patents
Manufacture of hollow resilient regulation tennis ballInfo
- Publication number
- JPS5651343A JPS5651343A JP12659479A JP12659479A JPS5651343A JP S5651343 A JPS5651343 A JP S5651343A JP 12659479 A JP12659479 A JP 12659479A JP 12659479 A JP12659479 A JP 12659479A JP S5651343 A JPS5651343 A JP S5651343A
- Authority
- JP
- Japan
- Prior art keywords
- semispherical
- items
- green
- vulcanizer
- promoter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To provide a tennis ball having less gas leakage by a method wherein raw material to be kneaded comprising butadiene rubber mixed with a specific additive agent, vulcanizer, promoter and phenol resin is formed to a semispherical shape and two of the semispherical shaped materials are closely contacted with each other.
CONSTITUTION: Various kinds of substances such as butadiene rubber, green rubber, hydrosilicic acid, zinc oxide, polyethylene glycol, stearic acid, with DM, D applied as a promoter, sulphur S applied as a vulcanizer, and a phenol resin are mixed with each other to form a needed green material. The needed green material having a required size and the same volume or amount are separately cut apart, each of the separated green pieces is put in a semispherical mold under a conventional manner and then heated or baked, resulting in making the resilient semispherical items 1. To the open edges 2 of the resilient semispherical items 1 are applied adhesive agent and the items are closely fitted so as not to be separated and finally a ball-shaped item is formed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12659479A JPS5651343A (en) | 1979-09-30 | 1979-09-30 | Manufacture of hollow resilient regulation tennis ball |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12659479A JPS5651343A (en) | 1979-09-30 | 1979-09-30 | Manufacture of hollow resilient regulation tennis ball |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5651343A true JPS5651343A (en) | 1981-05-08 |
Family
ID=14939041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12659479A Pending JPS5651343A (en) | 1979-09-30 | 1979-09-30 | Manufacture of hollow resilient regulation tennis ball |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5651343A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06178829A (en) * | 1992-06-24 | 1994-06-28 | Gencorp Inc | Tennis ball free from adhesive agent in joint |
KR960017691A (en) * | 1994-11-16 | 1996-06-17 | 남일 | Manufacturing method of new rubber vulcanizing agent mainly based on zinc oxide |
-
1979
- 1979-09-30 JP JP12659479A patent/JPS5651343A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06178829A (en) * | 1992-06-24 | 1994-06-28 | Gencorp Inc | Tennis ball free from adhesive agent in joint |
KR960017691A (en) * | 1994-11-16 | 1996-06-17 | 남일 | Manufacturing method of new rubber vulcanizing agent mainly based on zinc oxide |
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