Title:
GOLF BALL
Document Type and Number:
Japanese Patent JP2001061993
Kind Code:
A
Abstract:
To provide a golf ball of optimizing a dynamic material at the condition that resembles in actual hitting and heightening the rebound performance and feeling.
The golf ball is composed of a core layer 1 and a cover layer 3 that covers on the core layer 1. The cover layer 3 is made of synthetic resin composition of matter. For the cover layer 3, the Young's modulus, which is measured by the Split-Hopkinson bar tester that is 14.0 m/s of its impact speed of hitting bar, is 100 MPa≤, 350 MPa≥. For the cover layer 3, the loss factor, which is measured by the Split-Hopkinson bar tester that is 14.0 m/s of its impact speed of hitting bar, is 0.2 MPa≤, 0.45 MPa≥.
Inventors:
MARUOKA KIYOTO
Application Number:
JP24293499A
Publication Date:
March 13, 2001
Filing Date:
August 30, 1999
Export Citation:
Assignee:
SUMITOMO RUBBER IND
International Classes:
A63B37/04; A63B37/00; A63B37/12; A63B47/00; (IPC1-7): A63B37/00
Attorney, Agent or Firm:
Kazumi Owada (1 person outside)