| abstract |
(57) [Summary] (With correction) [Solution] Solid core 294N (30 kgf) The amount of deformation under load is 1.1 mm or more, the difference between the JIS-C hardness of the core surface and the JIS-C hardness of the core center (core surface-core center) is larger than 15, and the inner layer cover has the following component (a) To (c), (a) an olefin-unsaturated carboxylic acid random copolymer, an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymer or a metal ion neutralized product of these copolymers, or A mixture of a copolymer and a neutralized product; (b) a fatty acid having a molecular weight of 280 or more or a derivative thereof; (c) a basic inorganic metal capable of neutralizing an acid group in the above components (a) and (b) It is formed of a resin composition containing a compound as an essential component. The multi-piece solid golf ball of the present invention has a long flight distance, is excellent in controllability, has a good feeling, and has excellent durability. |