Abstract: A golf ball may include one or more structural layers, including an outermost structural layer, and indicia applied in a localized area of the ball. Also, the golf ball may include an intermediate coating applied in the localized area over the indicia, wherein the intermediate coating is formulated to prevent alteration of the indicia by the application of the intermediate coating. The golf ball may further include a top coating applied over the entire ball, including the outermost structural layer and the localized area including the intermediate coating.

Abstract: Golf balls containing a core having at least one layer and cover having at least one layer are provided. A thermoplastic ionomeric composition is used to form at least one layer of the ball. The composition is prepared by providing a masterbatch comprising cycloalkene (polyalkenamer) rubber and neutralizing agent and mixing the masterbatch with ethylene acid copolymer. The acid groups are neutralized to 30 weight percent or greater, preferably 50% or greater, and more preferably 70% or greater. The resulting ball has high resiliency and rebounding properties along with a soft feel.

Abstract: An object of the present is to provide a golf ball having an increased spin rate on approach shots. Another object of the present invention is to provide a golf ball having a goof shot feeling on approach shots. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, and having a coefficient of friction calculated using a contact force tester of 0.35 or more and 0.60 or less.

Abstract: Golf ball 2 has spherical main body 4, mark layer 6 and paint layer 8. The main body 4 has spherical core 10, and cover 12 provided to cover this core 10. The cover 12 does not include titanium oxide. The cover 12 includes a fluorescent colorant. The main body 4 has a chroma saturation of equal to or greater than 25. The paint layer 8 is constituted with a resin composition. This resin composition includes composite particles. The composite particle has a nucleus, and a coat layer provided to coat this nucleus. The nucleus is constituted with mica, while the coat layer is constituted with titanium oxide. The amount of the composite particles is 2 parts by weight or greater and 30 parts by weight or less per 100 parts by weight of the base resin of the paint layer 8.

Abstract: A golf ball having a plurality of dimples formed on its outer surface, the outer surface of the golf ball being divided into plural areas comprising at least first areas containing a plurality of first dimples and second areas containing a plurality of second dimples, the areas together forming a spherical polyhedron shape, wherein the first dimples are spherical truncated dimples and the second dimples are spherical dimples, and the second dimples are of larger radius and larger chord depth than the first dimples.

Abstract: The present invention is directed to a golf ball possessing an overall unique and perceptively pleasing multi-color appearance and being constructed of at least two layers wherein each layer has at least two discrete color regions which contribute substantially to the golf ball's overall color appearance, the inner and outer layers being strategically positioned and aligned in relation to each other to create the overall golf ball color appearance. A resulting unique overall golf ball multiple color appearance is achieved by the positioning and aligning one layer about another.

Abstract: Methods for making polyurea polymer compositions are provided. The methods involve preparing an amine-terminated first prepolymer by reacting isocyanate compound A with a stoichiometric excess of polyamine. The first prepolymer is reacted with a stoichiometric excess of isocyanate compound B to form an isocyanate-terminated second prepolymer. The second prepolymer is reacted with a chain extender. The polymer compositions can be used in different products and are particularly suitable for making golf balls. For example, the polymer compositions can be used to make golf ball covers.

Abstract: An over-indexed, optionally cross-linked thermoplastic polyurethane elastomer. Also, the method of making the elastomer, and articles, including golf balls, comprising the elastomer.

Abstract: A golf ball having an over-indexed thermoplastic polyurethane elastomer cover and having a soft feeling when hit. The golf ball cover also may be cross-linked.

Abstract: This disclosure provides a golf ball that includes carbon dioxide absorbents in order that the golf ball may reduce atmospheric carbon dioxide levels to aid in alleviating global warming. The golf ball may include an intermediate layer that is substantially impermeable to water, in order to ensure that the golf ball's core is not degraded by water produced by the carbon dioxide absorbance reaction. The chemical absorbents may be encapsulated in microcapsules so that carbon dioxide is not absorbed until the golf ball is used by a golfer.

Abstract: A system and method for manufacturing a golf ball with one or more patterned film layers is disclosed. The system and method may involve creating a patterned film layer and applying the patterned film layer to the surface of a golf ball. The patterned film layer may include a layer of film having cutouts leaving the remaining portions of film in a pattern. The pattern may include a net pattern. The patterned film layer may include a material that is relatively harder or relatively softer than the surface of the golf ball. The method may include removing portions of film from a film material to create a patterned film material, cutting the patterned film material into sheets, molding two patterned film sheets into substantially hemispherical cups, and applying the two substantially hemispherical cups to a golf ball.

Abstract: A golf ball may include an inner core layer and an outer cover layer disposed radially outward of the inner core layer. The outer cover layer may be formed of an outer cover layer material having one or more grooves extending radially inward from an outer surface of the outer cover layer. In addition, the golf ball may include a groove material disposed within the one or more grooves. The groove material may have a compressibility that is different from a compressibility of the outer cover layer material. Also, the outer surface of the groove material may extend radially outward beyond the outer surface of the outer cover layer.

Abstract: A golf ball is provided that may include one or more structural layers, including an outermost structural layer having an outer surface. The ball may also include a primer coating applied to the entire outer surface of the outermost structural layer. In addition, the ball may include indicia applied on the primer coating in a localized area. Further, the ball may include an intermediate coating applied in the localized area over the indicia, wherein the intermediate coating is formulated to prevent alteration of the indicia by the application of the intermediate coating. A top coating may be applied over the entire ball, including the primer coating and the localized area including the intermediate coating.

Abstract: A golf ball may include a UV curable coating layer that is only partially cured upon finishing. The golf ball may be used in its partially cured state in a game of golf, where the partially cured state may be advantageous for play under wet conditions. The coating layer may then further cure upon exposure to UV light, such as ambient environmental light from the sun during a game of golf in sunny conditions. As a result of this further curing, the coating may transition to a cured state that is associated with play characteristics that are advantageous for play under sunny dry conditions.

Abstract: A golf having hydrophilic and hydrophobic portions is disclosed. In wet playing conditions, moisture may be repelled by the hydrophobic portions and attracted to the hydrophilic portions. Thus, the surface of the hydrophobic portions may remain dry such that the friction between a golf club head and the golf ball surface is not reduced. As a result, the golf ball may not be adversely affected by wet playing conditions.

Abstract: The invention provides a colored golf ball composed of a core, a cover having a plurality of dimples formed on an outside surface thereof, and an inside layer in contact with the cover. The ball satisfies the following conditions: (i) a color difference ?E* between the inside layer and the ball of at least 30; (ii) the inside layer has a lightness L* value, expressed in the L*a*b* color system based on JIS Z8729, of at least 82; (iii) the ball has a lightness L* value of at least 50; (iv) the lightness L* value of the ball?the lightness value of the inside layer; (v) the inside layer has a transparency which is up to 10% in terms of total transmittance and up to 1.0% in terms of parallel transmittance; (vi) the cover has a transparency which is at least 50% in terms of total transmittance and at least 1.0% in terms of parallel transmittance; and (vii) the inside layer has a haze (H), mentioned in JIS K7105 (1981), of at least 90.

Abstract: An object of the present invention is to improve the abrasion-resistance of a golf ball having a polyurethane cover. Another object of the present invention is to enhance the resilience and the shot feeling thereof. The present invention provides a golf ball having a cover, said cover comprising, as a base resin, a thermoplastic polyurethane containing a polycarbonate polyol as a constitutional component, wherein the polycarbonate polyol has, as a repeating constitutional unit, a repeating unit (A) shown in a following Formula (I), and a repeating unit (B) shown in a following Formula (II) and having a different structure from that of (A), and a molar ratio of (A)/(B) is from 30/70 to 70/30. In Formula (I), R1 is a bivalent residue obtained by removing two hydroxyl groups from a diol having 4 to 6 carbon atoms. In Formula (II), R2 is a bivalent residue obtained by removing two hydroxyl groups from a diol having 4 to 6 carbon atoms.

Abstract: This invention pertains to a golf ball which includes a core, optionally one or more intermediate layers; and an outer cover layer. The outer cover layer and/or one or more intermediate layers includes a blend of a) 2 to 60 wt % (based on the total weight of the blend composition) of a cyclic olefin polymer which includes a norbornene-based monomer having the general formula; where R18 to R21 independently represent a hydrogen atom, a halogen atom or a hydrocarbon group and m is from 0 to about 3; and b) about 40 to about 98 wt % (based on the total weight of the blend composition) of one or more additional polymer components. The blend composition has a melt flow index (MFI) from 1 to 80 g/10 min., a material hardness of 30 to 90 Shore D, and a flex modulus of 10 to 120 kpsi.

Abstract: A golf ball of the present invention includes: a core located in the center of the golf ball; a cover surrounding the outside of the core and having plural dimples on the surface thereof; and a paint layer surrounding the outside of the cover. The paint layer is formed of a material having rubber elasticity. The paint layer may have a thickness of at most approximately 100 ?m. The paint layer may have a hardness of at most approximately 70 in terms of JIS-C hardness. The cover may contain ionomer resin. The cover may have a hardness of at least 40 in terms of Shore D hardness.

Abstract: A golf ball of the present invention includes: a core located in the center of the golf ball; a cover surrounding the outside of the core and having plural dimples on the surface thereof; and a paint layer surrounding the outside of the cover. The paint layer is formed of a material having rubber elasticity. When the golf ball has a ? hardness and the paint layer has a JIS-C hardness, a ratio Sp of the JIS-C hardness of the paint layer with respect to the ? hardness of the golf ball is at most approximately 15. When the cover has a Shore D hardness, a ratio Sc of the Shore D hardness of the cover with respect to the ? hardness of the golf ball may be at most approximately 25.

Abstract: This invention pertains to a golf ball which includes a core, optionally one or more intermediate layers; and an outer cover layer. The outer cover layer and/or one or more intermediate layers includes a blend of a) about 2 to about 40 wt % (based on the total weight of the blend composition) of an aramid polymer and b) about 60 to about 98 wt % (based on the total weight of the blend composition) of one or more additional polymer components. The blend composition has a melt flow index (MFI) from about 1 to about 80 g/10 min., a material hardness of about 30 to about 90 Shore D, and a flex modulus of about 10 to about 120 kpsi.

Abstract: A golf ball of the present invention includes: a core located in the center of the golf ball; a cover surrounding the outside of the core and having plural dimples on the surface thereof; a paint layer surrounding the outside of the cover; and a top coat further surrounding the outside of the paint layer. The paint layer is formed of a material having rubber elasticity. The top coat may have a thickness of at most approximately 60 ?m. A material for forming the paint layer has a first loss tangent, a material for forming the cover has a second loss tangent, and a difference Td between the first loss tangent and the second loss tangent may be at least approximately 0.05.

Abstract: This invention pertains to a golf ball which includes a core, optionally one or more intermediate layers; and an outer cover layer. The outer cover layer and/or one or more intermediate layers (if present) includes a blend of from about 2 to about 60 wt % (based on the total weight of the blend composition) of an liquid crystalline polymer (“LCP”) having the general formula; and from about 40 to about 98 wt % (based on the total weight of the blend composition) of one or more additional polymer components.

Abstract: The present invention provides a method for arranging dimples on a golf ball surface that significantly improves aerodynamic symmetry and minimizes parting line visibility by arranging the dimples 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 eliminating great circles due to parting lines.

Abstract: A golf ball material composed of (A) an oxygen-containing inorganic metal compound in the form of a particulate or a master batch capable of neutralizing at least some of the acid groups in an acid-containing polymer blend, (B) one or more polymer selected from among diene polymers, thermoplastic polymers and thermoset polymers, and (C) an acid-containing polymer is prepared by mixing component A in a blend of components B and C. The golf ball material has a good heat resistance, flowability and processability, and can be used to produce high-performance golf balls having durability, scuff resistance and optimal hardness without a loss of rebound.

Abstract: The invention provides a golf ball having a core, a cover of at least one layer encasing the core, and a layer of paint applied to a surface of an outermost layer of the cover. At least one layer from among the outermost cover layer and the paint layer is a colored layer containing a base polymer, a pigment and a lubricant. The ball has a color tone, at a measurement area diameter of 5 mm in a method of measuring the color of a reflecting object according to JIS Z-8722, which, expressed in the Lab color system, satisfies the conditions 30?L, ?40?a?60, and ?20?b?60. The colored golf ball of the invention has an excellent spin performance and durability, an appearance characterized by outstanding visibility, stylishness and luxury, and an excellent weather resistance and paint film adhesion.

Abstract: In a golf ball composed of a core, a cover of at least one layer encasing the core, and a coat of paint applied to a surface of an outermost layer of the cover, the outermost layer of the cover or the coat of paint is colored with a fluorescent pigment. The ball has a color tone, at a measurement area diameter of 5 mm in a method of measuring the color of a reflecting object according to JIS Z-8722, which satisfies specific conditions in the Lab color system. The ball is endowed with an excellent spin performance and durability, an appearance characterized by outstanding visibility, stylishness and luxury, and an excellent weather resistance.

Abstract: Golf balls having improved cut and shear resistance that include covers and/or other layers formed from polyurea compositions formed with at least one amine-terminated polytetramethylene ether glycol homopolymer, at least one amine-terminated copolymer of polytetramethylene ether glycol and polyalkylene glycol. The amine-terminated polytetramethylene ether glycol homopolymer or amine-terminated copolymer of polytetramethylene ether glycol and polyalkylene glycol may be used as the isocyanate-reactive in the prepolymer and/or the curing agent.

Abstract: Golf equipment including compositions including castable formulations that have low material hardness and increased shear resistance. The compositions may be used in any layer of a golf ball including cores, intermediate layers, and covers and result in high spin rates.

Abstract: The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a cover composition containing a non-petroleum based polyester resin as a resin component (A) and a needle-like and/or fibrous filler (B). The present invention further provide a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a cover composition containing, a non-petroleum based polyester resin (A-1), at least one petroleum based thermoplastic resin (A-2), and a compatibilizer (C) containing at least a (meth)acrylic resin (C-1) having a polar functional group and an olefin resin (C-2) having a polar functional group. According to the present invention, durability, abrasion resistance and repulsion of a golf ball can be improved.

Abstract: An object of the present invention is to provide a golf ball excellent in fluidity, adhesion of the paint film, and repulsion. Another object of the present invention is to provide a golf ball which is excellent in durability and low-temperature durability.

Abstract: The present invention is directed to a golf ball possessing an overall unique and perceptively pleasing golf ball having an overall color appearance of two colors wherein more than one golf ball layer/component contributes to the bi-color appearance without the need to position and align the outer layers/components in relation to the inner layer/component.

Abstract: A golf ball includes a core having a diameter, a first Shore D hardness and a compression; and a cover having a second Shore D hardness that is at least 5 points less than the first Shore D hardness. The cover includes an ionomer of an alternate copolymer, the alternate copolymer being formed from the reaction product of a copolymer of ethylene and maleic anhydride monomer in the presence of a suitable base, the maleic anhydride monomer being present in an amount of about 78 wt %.

Abstract: A coating composition for a golf ball and a coated golf ball are disclosed. The coating composition comprises a polyurethane and a boron-containing compound that improves the adhesion of the coating to a printed image.

Abstract: The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a cover composition containing a non-petroleum based polyester resin as a resin component (A) and a needle-like and/or fibrous filler (B). The present invention further provide a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a cover composition containing, a non-petroleum based polyester resin (A-1), at least one petroleum based thermoplastic resin (A-2), and a compatibilizer (C) containing at least a (meth)acrylic resin (C-1) having a polar functional group and an olefin resin (C-2) having a polar functional group. According to the present invention, durability, abrasion resistance and repulsion of a golf ball can be improved.

Abstract: The invention provides a multi-piece solid golf ball having a core of at least one layer, a cover of at least two layers which includes an inner cover layer and an outermost cover layer, and a plurality of dimples formed on a surface of the ball. The thickness and Shore D hardness of the outermost cover layer are set in specific ranges, the thickness and Shore D hardness of the inner cover layer are set in specific ranges, and the ball surface has, as expressed in the Lab color system defined by JIS Z-8730, a lightness L value of at least 89, an a value of at least 2 but not more than 10, and a b value of ?20 or above. The multi-piece solid golf ball of the invention increases the reddish coloring of a white golf ball, thereby enhancing the stylishness of the ball and improving the way the ball looks and feels to the golfer when it is played.

Abstract: The invention provides a colored golf ball comprising a core, a cover having a plurality of dimples formed on its surface, wherein the golf ball is two-piece structure consisting of a core and a cover, and the surface of the ball is coated with a coating comprising a pearlescent pigment. The ball satisfies the following conditions: (i) a color difference ?E* between the core and the ball of at least 30; (ii) the core has a transparency which is up to 10% in terms of total transmittance and up to 1.0% in terms of parallel transmittance; (iii) the core has a lightness L* value, expressed in the L*a*b* color system based on JIS Z8729, of at least 82; (iv) the ball has a lightness L* value of at least 50; (v) the lightness L* value of the ball ?the lightness L* value of the core; (vi) the cover has a thickness of from 0.1 to 2.1 mm, (vii) the cover has a transparency which is at least 50% in terms of total transmittance and at least 1.

Abstract: A golf ball 2 has, on a surface thereof, a dimple pattern consisting of a land 10 and a large number of dimples 8. A process for designing the dimple pattern includes the steps of: (1) randomly arranging a large number of points on the surface of a phantom sphere; (2) calculating a distance between a first point and a second point which is a point closest to the first point; (3) deciding a radius on the basis of the distance; (4) assuming a circle which has a center at the first point and has the radius; and (5) assuming a dimple 8 whose contour coincides with the circle.

Abstract: Sight alignment indicia on a sphere being indicia made on opposing sides of a sphere, the indicia positioned from about 0 degrees to 23 degrees north of the equator of the sphere, and visible at the same time to one standing over the ball. A sphere surface template marking device comprising a shell having an outer-surface and inner-surface generally defining a hemi-spherical portion of a sphere adapted for receiving a portion of the sphere so that the inner-surface substantially conforms thereto, the shell having an edge portion approximating the equator of the sphere, at least two grooves disposed there through, with the grooves positioned on opposing sides of said shell from about 0 degrees to 23 degrees north of the edge portions of the sphere, serving to receive and guide a marker imprinting indicia on said surface of said sphere.

Abstract: An object of the present invention is to provide a golf ball excellent in fluidity, adhesion of the paint film, and repulsion. Another object of the present invention is to provide a golf ball which is excellent in durability and low-temperature durability. The present invention provides a golf ball comprising: a core and a cover covering the core, wherein the cover is formed from a cover composition that contains as a resin component, (A) a specific high melt viscosity ionomer resin being neutralized with at least two metal ions, and (B) a low melt viscosity ionomer resin being neutralized with at least two metal ions, in a ratio of (A) the high melt viscosity ionomer resin/(B) the low melt viscosity ionomer resin being 55 mass % to 99 mass %/45 mass % to 1 mass %.

Abstract: A golf ball 2 has, on a surface thereof, a dimple pattern consisting of a land 10 and a large number of dimples 8. A process for designing the dimple pattern includes the steps of: (1) randomly arranging a large number of points on the surface of a phantom sphere; (2) calculating a distance between a first point and a second point which is a point closest to the first point; (3) deciding a radius on the basis of the distance; (4) assuming a circle which has a center at the first point and has the radius; and (5) assuming a dimple whose contour coincides with the circle. The dimples 8 are randomly arranged.

Abstract: A golf ball exhibits excellent abrasion-resistance and resilience. A golf ball of the present invention includes: a core; and a cover covering the core, wherein the cover is formed of a cover composition containing a (meth)acrylic polymer-modified silicate and a resin component.

Abstract: An object of the present invention is to provide a two-component curing type urethane-based aqueous golf ball paint, which is excellent in gloss of a paint film and evenness of the film thickness. Another object of the present invention is to provide a two-component curing type urethane-based aqueous golf ball paint, which is excellent in adhesion to the surface of a golf ball body. The present invention provides a two-component curing type urethane-based aqueous golf ball paint containing (A) an aqueous polyol composition and (B) an aqueous polyisocyanate, wherein the aqueous paint has a contact angle of 45° or less to a resin component constituting an outermost layer of a golf ball body and a paint film has reflectivity of 70% or more at an incident angle of 20°.

Abstract: A golf ball 2 includes a spherical core 4, a cover 6 and a paint layer 8. The core 4 includes a spherical center 10 and a mid layer 12. The cover 6 is formed from a resin composition that includes a base resin and a fluorescent pigment. The paint layer 8 is formed from a resin composition that includes a base resin and a light-collecting fluorescent dye. A product of an amount of the light-collecting fluorescent dye per 100 parts by weight of the base resin in the paint layer 8 and a thickness (mm) of the paint layer 8 is higher than 5.0×10?5 and lower than 2.0×10?3.

Abstract: A golf ball 2 includes a center 12, a mid layer 14, a reinforcing layer 6, a cover 8 and a paint layer 10. The golf ball 2 has a large number of dimples 16 on the surface thereof. The cover 8 is formed of a resin composition including thermoplastic polyurethane (A) and a polyisocyanate mixture (B). The polyisocyanate mixture (B) includes a urethane prepolymer (B1) having two or more isocyanate groups or an isocyanate compound (B2) having three or more isocyanate groups. The polyisocyanate mixture (B) further includes a thermoplastic resin (B3) which substantially does not react with an isocyanate group. The golf ball 2 is obtained by a mold having protrusions which project from the equator of the mold. Each protrusion includes a part of a pimple.

Abstract: Disclosed are golf balls having soft, resilient bimodal ionomeric covers with improved softness and scuff resistance and methods for their preparation. The soft, resilient bimodal ionomeric covers comprise at least partially neutralized mixtures of carboxylate functionalized terpolymers (molecular weight between about 80,000 and 500,000) with carboxylate functionalized ethylene low copolymers (molecular weight between about 2,000 and 30,000).

Abstract: A golf ball 2 includes a center 12, a mid layer 14, a reinforcing layer 6, a cover 8 and a paint layer 10. The golf ball 2 has a large number of dimples 16 on the surface thereof. The cover 8 is formed of a resin composition including thermoplastic polyurethane (A) and a polyisocyanate mixture (B). The polyisocyanate mixture (B) includes a urethane prepolymer (B1) having two or more isocyanate groups or an isocyanate compound (B2) having three or more isocyanate groups. The polyisocyanate composition (B) further includes a thermoplastic resin (B3) which substantially does not react with an isocyanate goup. The golf ball 2 is obtained by a mold having protrusions which projects from the equator of the mold. Each protrusion includes a part of a pimple.

Abstract: The invention provides a golf ball mold that includes a mold body configured as a plurality of mold parts which have at least a parting surface that defines a parting line at a golf ball equator and removably mate to form a cavity having an inner wall with a plurality of dimple-forming protrusions thereon, and a support pin which has an end face with a plurality of dimple-forming protrusions thereon and is extendable into and retractable from the cavity. The support pin extends into the cavity to support a center sphere and, when in a retracted state, the end face thereof defines a portion of the inner wall of the cavity. The end face of the support pin includes a pole of the cavity and has a peripheral edge which intersects a parallel of latitude at 10 degrees from the pole. Using the golf ball mold of the invention, good molded pieces which do not give rise to problems such as appearance defects and irregular flash can be easily and reliably obtained, helping to improve golf ball productivity.

Abstract: The invention provides a multi-piece solid golf ball having a core, a cover of at least one layer encasing the core, and a layer of paint applied to a surface of an outermost layer of the cover, wherein the outermost cover layer or an inner cover layer adjacent to the outermost layer is formed of a resin composition which includes: (a) 100 parts by weight of a thermoplastic resin, (b) from 0.003 to 2 parts by weight of a color pigment or dye, and (c) from 0.01 to 20 parts by weight of spherical inorganic fine particles as a reflective material. The golf ball has a novel appearance that is bright and highly visible, and also has an excellent durability.

Abstract: 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, and particularly a dipyramid. 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.