EP 1186323 A3 20040331 - Multi-piece solid golf ball
Title (en)
Multi-piece solid golf ball
Title (de)
Mehrteiliger, vollmassiver Golfball
Title (fr)
Balle de golf solide en plusieurs pièces
Publication
Application
Priority
JP 2000274843 A 20000911
Abstract (en)
[origin: EP1186323A2] In a multi-piece solid golf ball comprising a solid core and a cover of two inner and outer layers enclosing the solid core, the solid core has a deflection of at least 1.1 mm under an applied load of 294 N (30 kgf) and a surface and a center, the surface-center hardness difference given as a JIS-C hardness at the core surface minus a JIS-C hardness at the core center is up to 15 units, the cover inner layer is formed of a resin composition comprising as essential components, (a) an olefin-unsaturated carboxylic acid random copolymer, an olefin-unsaturated carboxylic acid-unsaturated carboxylate random copolymer, a metal ion neutralized product of each copolymer, or a mixture of each copolymer and the neutralized product, (b) a fatty acid having a molecular weight of at least 280 or derivative thereof, and (c) a basic inorganic metal compound capable of neutralizing acid groups in components (a) and (b), the Shore D hardness of the cover inner layer, the Shore D hardness of the cover outer layer, and the hardness relationship between the cover inner layer and the cover outer layer are adjusted, and the sum of dimple trajectory volumes each obtained by multiplying the volume of a dimple by the square root of a dimple diameter is optimized. <IMAGE>
IPC 1-7
IPC 8 full level
A63B 37/00 (2006.01); A63B 37/04 (2006.01); A63B 37/12 (2006.01); C08K 3/22 (2006.01); C08K 5/09 (2006.01); C08L 23/02 (2006.01); C08L 23/26 (2006.01); C08L 67/02 (2006.01)
CPC (source: EP US)
A63B 37/0012 (2013.01 - EP); A63B 37/0017 (2013.01 - EP); A63B 37/0018 (2013.01 - EP); A63B 37/0019 (2013.01 - EP); A63B 37/002 (2013.01 - EP); A63B 37/0031 (2013.01 - EP); A63B 37/0033 (2013.01 - EP); A63B 37/0035 (2013.01 - EP); A63B 37/0043 (2013.01 - EP); A63B 37/0047 (2013.01 - EP); A63B 37/0063 (2013.01 - EP); A63B 37/0064 (2013.01 - EP); A63B 37/0066 (2013.01 - EP); A63B 37/0076 (2013.01 - EP US); A63B 37/008 (2013.01 - EP); A63B 37/0083 (2013.01 - EP); A63B 37/0092 (2013.01 - EP US); A63B 37/0096 (2013.01 - EP); A63B 37/04 (2013.01 - EP); A63B 37/12 (2013.01 - EP)
Citation (search report)
- [A] EP 0895791 A1 19990210 - BRIDGESTONE SPORTS CO LTD [JP]
- [A] WO 0051690 A1 20000908 - ACUSHNET CO [US]
- [A] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 11 3 January 2001 (2001-01-03) & US 6336874 B1 20020108 - YAMAGISHI HISASHI [JP], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1186323 A2 20020313; EP 1186323 A3 20040331; EP 1186323 B1 20080903; DE 60135610 D1 20081016; JP 2002085589 A 20020326; JP 3861971 B2 20061227
DOCDB simple family (application)
EP 01306181 A 20010718; DE 60135610 T 20010718; JP 2000274843 A 20000911