The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 1999
Filed:
Apr. 14, 1997
Yutaka Masutani, Saitama, JP;
Keisuke Ihara, Saitama, JP;
Hirotaka Shimosaka, Saitama, JP;
Michio Inoue, Saitama, JP;
Atuki Kasasima, Saitama, JP;
Bridgestone Sports Co., Ltd., Tokyo, JP;
Abstract
A golf ball has a coating layer formed by dispersion coating at the surface portion thereof. For example, a two-piece golf ball is produced by enclosing a solid core with a cover material; forming, by dispersion coating, a white coating layer made of a thermoplastic resin on the surface of the cover material; conducting mark stamping on the coating layer; forming, by dispersion coating, a transparent coating layer made of a thermosetting resin as an outermost layer; and then conducting dimple processing. The coatings have thicknesses in the range of 15-250 .mu.m. Even when the coating layer at a surface portion is formed relatively thick, the coating layer allows the dimples to be precisely shaped and sharp edged and can be given sufficient durability and functions to improve travel properties, spin properties, and feel on impact. The coating layer is formed by dispersion coating using a water system emulsion which is prepared by dispersing a resin powder in water and wherein the resin powder has a gram size 1-3 .mu.m.