A golf ball having a four-layer structure and a method for manufacturing a golf ball
By using a double-layer rubber core with matching hardness and mass design and a covalent bonding interface of silane coupling agent treatment liquid, combined with high-temperature injection molding to form chemical bonding chains, the problems of insufficient interlayer bonding and interface stress concentration in golf balls are solved, thus achieving the durability and flight consistency of golf balls.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO SM PARKER GOLF LTD
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing golf balls suffer from problems such as insufficient interlayer bonding, interfacial stress concentration caused by hardness gradients, and complex and unreliable bonding processes between the rubber core and the intermediate layer, resulting in short service life and poor flight consistency.
The design employs a double-layer rubber core with matching hardness and mass. A covalent bonding interface between the rubber and the inner intermediate layer is constructed using a silane coupling agent treatment solution. High-temperature injection molding is then used to diffuse and entangle the polymer chains of the inner and outer intermediate layers, forming a complete chemical bond chain. With a suitable hardness gradient and mass ratio, the manufacturing process is simplified.
It improves the anti-delamination ability between layers, reduces interfacial stress concentration, simplifies the manufacturing process, and enhances the service life and flight trajectory stability of golf balls.
Smart Images
Figure CN122399321A_ABST