Abstract: A golf ball comprising a core, a cover, and a clear paint outer layer. The cover comprises 100 parts by weight of an ionomer resin, a light stabilizer and an ultraviolet (UV) absorber such that the total amount of the light stabilizer and the UV absorber is present in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the cover resin and an amount ratio of the light stabilizer / the UV absorber is from 75/25 to 25/75. The clear paint comprises a light stabilizer and a UV absorber in an amount of 0.1 to 20 parts by weight based on 100 parts by weight of the paint solid and an amount ratio of the light stabilizer / the UV absorber of 75/25 to 5/95. The clear paint further comprises a fluorescent whitening agent in an amount of 0.04 to 1.6 parts by weight based on 100 parts weight of the paint solid.

Abstract: A one-piece golf ball exhibiting an increased flying distance and a high durability suitable for golf driving ranges, i.e. a solid golf ball having a central hardness (JIS-C hardness) of 60 to 75, a hardness at a position 10 mm from the center of 72 to 80 and a surface hardness of 70 to 85, whereby the central hardness is minimum, and the difference between the maximum hardness and the minimum hardness is 15 or less, said golf ball being obtained by vulcanizing and molding a rubber composition comprising(a) 100 parts by weight of polybutadiene rubber, mainly comprising high-cis-polybutadiene rubber containing the cis-1,4-structure in a quantity of at least 96% and having a Mooney viscosity of 48 to 85 synthesized by the use of a nickel-containing catalyst;(b) 0.1 to 2.0 parts by weight of 2,5-di-t-butylhydroquinone as a vulcanization stabilizer;(c) 10 to 50 parts by weight of unsaturated carboxylic acids and/or salts thereof; and(d) 0.5 to 5 parts by weight of a free radical initiator.

Abstract: Disclosed is a method of coating a golf ball comprising coating a surface of a golf ball with a solution of ethylene-imine, carbodiimid or the derivatives thereof and then coating it with a paint and a pre-treatment solution comprising ethylene-imine, carbodiimide and the derivatives thereof for coating a golf ball.

Abstract: A golf ball prepared by covering a golf ball core with an ionomer resin composition comprising 0.5 to 10% by weight of a white pigment and 0.2 to 0.6% by weight of a fluorescent whitening agent, wehrein the % of the pigment and the agent are based on the total weight of the resin composition. The ionomer resin cover is coated with an enamel paint comprising 1 to 10% by weight of a pigment, wherein the % is based on the solid content of said enamel paint. A clear paint may be applied either on the enamel layer or between the enamel layer and the ionomer resin cover.