摘要:
An object of the present invention is to provide a golf ball having high resilience. The gist of the present invention resides in selecting an organic sulfur compound used for a golf ball rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, and (d) the organic sulfur compound from organic sulfur compounds having specific structures such that a sum of substituent constants of the substituents X in a structure represented by the following formula (4) is 0.2 or more and SP value of the structure represented by the following formula (4) is in a range from 19.0 (J/cm3)1/2 to 24.0 (J/cm3)1/2 and using the same.
摘要翻译:本发明的目的是提供一种具有高弹性的高尔夫球。 本发明的要点在于选择用于高尔夫球橡胶组合物的有机硫化合物,其含有(a)基础橡胶,(b)共交联剂,(c)交联引发剂,和(d)有机 具有特定结构的有机硫化合物的硫化合物使得由下式(4)表示的结构中的取代基X的取代常数之和为0.2以上,由下式(4)表示的结构的SP值为 在19.0(J / cm 3)1/2至24.0(J / cm 3)1/2的范围内,并使用它们。
摘要:
An object of the present invention is to provide a golf ball having high resilience. The gist of the present invention resides in selecting an organic sulfur compound used for a golf ball rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, and (d) the organic sulfur compound from organic sulfur compounds having specific structures such that a sum of substituent constants of the substituents X in a structure represented by the following formula (4) is 0.2 or more and SP value of the structure represented by the following formula (4) is in a range from 19.0 (J/cm3) using the same.
摘要:
An object of the present invention is to provide a golf ball having high resilience. The present invention provides a golf ball having a constituting member, wherein at least a part of the constituting member is formed from a rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, and (d) an organic sulfur compound, the organic sulfur compound being derivatives of thiophenols and disulfide with a strong electron withdrawing substituent.
摘要:
An object of the present invention is to provide a golf ball having high resilience. The present invention provides a golf ball having a constituting member, wherein at least a part of the constituting member is formed from a rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, and (d) an organic sulfur compound, the organic sulfur compound being derivatives of thiophenols and disulfide with a strong electron withdrawing substituent.
摘要:
An object of the present invention is to provide an environmentally safe golf ball having excellent resilience. The present invention provides a golf ball having constituting members, wherein at least a part of the constituting members is formed from a rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, and (d) an organic sulfur compound, wherein the organic sulfur compound includes a disubstituted compound of thiophenol, disulfide and/or thiophenol metal salt with Br, F or CF3 only at ortho positions.
摘要:
The present invention provides a solid golf ball that exhibits a high resilience performance and a high flight performance and gives a good shot feeling. The present invention relates to a solid golf ball including: a core including at least one layer; and a cover including at least one layer, the cover being provided to cover the core, wherein the at least one layer of the core is prepared by vulcanization-molding a rubber composition including: (a) a base rubber; (b) a co-crosslinking agent; (c) an organic peroxide; (d) a filler; and (e) a disulfide compound represented by formula (I): R1—S—S—R2 (I) wherein R1 and R2 each represent any one of the following groups: an aromatic hydrocarbon group; an aliphatic hydrocarbon group having two or more carbon atoms; a heterocyclic hydrocarbon group; and an alicyclic hydrocarbon group, each of which is optionally substituted, and R1 is a group different from R2.
摘要:
The present invention provides a solid golf ball that exhibits a high resilience performance and a high flight performance and gives a good shot feeling. The present invention relates to a solid golf ball including: a core including at least one layer; and a cover including at least one layer, the cover being provided to cover the core, wherein the at least one layer of the core is prepared by vulcanization-molding a rubber composition including: (a) a base rubber; (b) a co-crosslinking agent; (c) an organic peroxide; (d) a filler; and (e) a disulfide compound represented by formula (I): R1—S—S—R2 (I) wherein R1 and R2 each represent any one of the following groups: an aromatic hydrocarbon group; an aliphatic hydrocarbon group having two or more carbon atoms; a heterocyclic hydrocarbon group; and an alicyclic hydrocarbon group, each of which is optionally substituted, and R1 is a group different from R2.
摘要:
A testing equipment including a first joint extending upright from a base (11), a final joint on which a holder (24) for holding a grip of a ball-hitting tool is installed, and an intermediate joint disposed between the first and final joints. The first, intermediate, and final joints are successively connected to each other and rotated by individual driving devices in such a way that the ball-hitting tool held by the holder installed on the final joint is swung in X, Y-, and Z-directions or/and rotated around a longitudinal axis of the ball-hitting tool held by the holder to adjust/increase or decrease a distance, between a ball-hitting plane and the base, corresponding to a motion of a person swinging his/her arm up and down, with the person gripping the ball-hitting tool, adjust/change an angle of the ball-hitting plane corresponding to an inward rotation of the arm or an outward rotation thereof, and/or adjust/change an angle between a longitudinal axis of the ball-hitting tool and the base.
摘要:
Pillow 1 according to the present invention includes a main body 3 having a concave portion 7 in the central part, and a cold insulator 5 mounted in the concave portion 7. This concave portion 7 is open in the central part of the main body side wall 8 on the side where the human nape is to be situated. The cold insulator 5 has a film for inclusion 11, and a gel material 9 which is internally included in the film for inclusion 11 and which includes a crosslinked polymer that is not in a swelled state with a medium. It is preferred that the gel material 9 includes an unfoamed polyurethane resin, and has an Asker F hardness of 10 or greater and 50 or less. Also, depth of the opening of the concave portion 7 that is open at the main body side wall 8 is preferably equal to or greater than one third of the height of this main body side wall 8. This pillow 1 is constituted so that the head region can be held with a shape fitting the shape of the neck and head, therefore, any strain is not imposed to the body.
摘要:
A dynamic damper (10) having a viscoelastic part (12) and a mass-adding part (11) laminated on the viscoelastic part (12). The dynamic damper (10) has a horizontal frame (13) and a vertical frame (14) disposed at both sides of the horizontal frame (13) in such a way that the horizontal frame (13) and the vertical frame (14) continuous with the horizontal frame (13) in the shape of a lattice. The horizontal frame (13) and the vertical frame (14) are integral with each other or separately provided in the shape of a lattice.