Injection molded balata shell
US4248826A · kind A · utility
2Cited by
10References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1979 |
| Grant date | Feb 3, 1981 |
| Priority date | — |
| Expiry date | Aug 30, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B45/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Improvements in a process for use in the manufacture of hemispherical shells for covering a golf ball center or core. The process includes the injection of a warm plasticized compound into a mold cavity in the form of a hemispherical shell. The improvements are that prior to plasticizing and injection into the mold cavity: the compound has as a dominant constituent, a trans 1,4-chain polymer of isoprene (balata, gutta-percha or synthetic transpolyisoprene); the compound is milled into a strip; and, the milled compound strips are granulated into particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.