Multi-piece solid golf ball
AssigneeSRI Sports Limited
InventorSatoshi Iwami
Life of this patent
Estimating the term…
Abstract
The present invention provides a multi-piece solid golf ball, of which durability is excellent and flight distance is improved by accomplishing high launch angle and low spin amount, when hit by golfers, who swing a golf club at low head speed, using a middle iron club to a driver. The present invention relates to a multi-piece solid golf ball comprising a center, an intermediate layer formed on the center and a cover covering the intermediate layer, wherein the intermediate layer is formed from a material having an elongation of 9 to 20 mm when applying the maximum load in penetration and impact fatigue tests and a flexural stiffness of 300 to 2,000 MPa.
Claims11
A multi-piece solid golf ball comprising a center, an intermediate layer formed on the center and cover covering the intermediate layer,
- wherein the core has a deformation amount when applying from an initial load of 98 N to a final load of 1275 N of 3.0 to 6.0 mm
- the intermediate layer is formed from a material having an elongation of 9 to 20 mm when applying the maximum load in penetration and impact fatigue tests and a flexural stiffness of 300 to 2,000 MPa;
- the intermediate layer is formed from a material selected from the group consisting of polyurethane-based thermoplastic elastomer, polyamide-based thermoplastic elastomer, polycarbonate resin, polyacetal resin, and a modified compound thereof;
- and
- the cover is formed from thermoplastic resin.
Dependencies are inferred from the claim text.