The present invention provides a golf ball having an outer surface comprising a plurality of dimples covering greater than 70 percent of the outer surface, wherein at least 20 percent of the dimples incorporate directional surface texturing therein. The directional surface texturing preferably comprises substantially parallel channels or protrusions formed within the dimples.

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball. The control points include the center of a polyhedral face, a vertex of the polyhedron, a midpoint or other point on an edge of the polyhedron and others. The method ensures that the symmetry of the underlying polyhedron is preserved while minimizing or eliminating great circles due to parting lines.

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball. The control points include the center of a polyhedral face, a vertex of the polyhedron, a midpoint or other point on an edge of the polyhedron and others. The method ensures that the symmetry of the underlying polyhedron is preserved while minimizing or eliminating great circles due to parting lines.

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball. The control points include the center of a polyhedral face, a vertex of the polyhedron, a midpoint or other point on an edge of the polyhedron and others. The method ensures that the symmetry of the underlying polyhedron is preserved while minimizing or eliminating great circles due to parting lines.

The present invention provides dimple patterns with tetrahedral tilings where the dimples are arranged in multiple copies of a first domain and a second domain, and the dimple pattern in the first domain is different than the dimple pattern in the second domain. A majority of dimples are provided having a first plan shape and a first profile shape, and at least one of the domains has a sub-pattern of nearest neighbor dimples having either a plan shape or a dimple profile shape that is different than the majority of dimples.

A golf ball according to an aspect of the present invention is a golf ball having a large number of dimples, a surface of the golf ball is covered with a plurality of virtual flat surfaces each having a triangular shape, one or more dimples are arranged so as to correspond to each of the virtual flat surfaces, and an edge of each dimple is formed in a linear shape. Each dimple may have a triangular pyramid shape or a triangular frustum shape.

The present invention provides dimple patterns with octahedral tilings where the dimples are arranged in multiple copies of a first domain and a second domain, and the dimple pattern in the first domain is different than the dimple pattern in the second domain. A majority of dimples are provided having a first plan shape and a first profile shape, and at least one of the domains has a sub-pattern of nearest neighbor dimples having either a plan shape or a profile shape that is different than the majority of dimples.

The present invention provides dimple patterns with icosahedral tilings where the dimples are arranged in multiple copies of a first domain and a second domain, and the dimple pattern in the first domain is different than the dimple pattern in the second domain. A majority of dimples are provided having a first plan shape and a first profile shape, and at least one of the domains has a sub-pattern of nearest neighbor dimples having either a plan shape or a dimple profile shape that is different than the majority of dimples.

A cured elastomer golf ball component is made by heating an elastomer compound containing an ethylenically unsaturated elastomer, an ethylenically unsaturated monomer, and first and second free radical initiators to a first crosslinking temperature T.sub.1 in a compression mold and partially crosslinking the elastomer, then heating to a second crosslinking temperature T.sub.2 and curing the elastomer component of the golf ball. Either: (i) the first initiator has a half-life of about 0.2-5 minutes at T.sub.1, the second initiator has a half-life of about 0.2-5 minutes at T.sub.2, and T.sub.2 is higher T.sub.1 by at least about 30° C.; or (ii) the second initiator's one-minute half-life temperature is at least about 30° C. higher than the first initiator's one-minute half-life temperature, T.sub.1 is within about 20° C. of the first initiator's one-minute half-life temperature, and T.sub.2 is within about 20° C. of the second initiator's one-minute half-life temperature.

Embodiments of golf balls and methods to manufacture golf balls are generally described herein. In one example, a golf ball may include a plurality of round dimples and a plurality of non-round dimples. Each round dimple may have a dimple diameter, and each non-round dimple may have a dimple diagonal. Other examples and embodiments may be described and claimed.