WO2001039843A1 - One-piece golf ball - Google Patents
One-piece golf ball Download PDFInfo
- Publication number
- WO2001039843A1 WO2001039843A1 PCT/US2000/033025 US0033025W WO0139843A1 WO 2001039843 A1 WO2001039843 A1 WO 2001039843A1 US 0033025 W US0033025 W US 0033025W WO 0139843 A1 WO0139843 A1 WO 0139843A1
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- WO
- WIPO (PCT)
- Prior art keywords
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- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/0022—Coatings, e.g. paint films; Markings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/005—Cores
- A63B37/0051—Materials other than polybutadienes; Constructional details
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0072—Characteristics of the ball as a whole with a specified number of layers
- A63B37/0073—Solid, i.e. formed of a single piece
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0077—Physical properties
- A63B37/0087—Deflection or compression
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
- C08F291/02—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00 on to elastomers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/092—Polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
- Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31971—Of carbohydrate
- Y10T428/31993—Of paper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2213—Coating or impregnation is specified as weather proof, water vapor resistant, or moisture resistant
Definitions
- This invention relates to a novel composition of matter and to a golf ball made therefrom.
- Prior art golf balls comprise, in general, three types.
- the first type is the three piece wound ball wherein a vulcanized rubber string is wound under tension around a solid or semi-solid core, and thereafter enclosed in a sheath or covering of tough, protective material.
- a second prior art golf ball is a one-piece ball formed from a solid mass of moldable resilient material which has been cured to develop the necessary degree of hardness to provide utility. One-piece molded balls do not have an enclosing cover.
- a third prior art ball is the two-piece ball that includes a solid core and a cover thereon.
- the one-piece ball is formed from a combination of materials such as elastomers, fillers and curing agents which are molded under high pressure and temperature to provide a ball of suitable hardness and resilience.
- materials such as elastomers, fillers and curing agents which are molded under high pressure and temperature to provide a ball of suitable hardness and resilience.
- One-piece balls are described, for example, in U.S. Patent No. 3,313,545, U.S. Patent No. 3,373,123 and U.S. Patent No. 3,384,612. While the wound ball has for many years satisfied both the standards of the
- One-piece and two-piece golf balls in contrast to wound golf balls, can be produced with an essentially perfect center of gravity and thus, exhibit excellent aerodynamic properties, superior roll and trueness of flight. Such golf balls are highly resistant to cutting and are practically indestructible during use in normal play. These balls return to round even when severely distorted and maintain their superior flight characteristics after extended use. Further, one and two-piece unitary golf balls can be manufactured with better quality than conventional wound balls. One-piece balls also maintain their playing characteristics throughout wide temperature ranges, possess an excellent shelf life, and do not water log. Moreover, if paint on one-piece golf balls becomes worn or damaged, the one-piece balls may be reclaimed by removing or stripping off the old paint and repainting. In contrast, wound balls seldom last long enough to allow repainting.
- one-piece balls have several distinct advantages, they have not had satisfactory durability due to brittleness. Most one-piece balls do not survive more than about 1000 hits. A need therefore exists for one-piece balls which have high hardness but yet possess improved durability and flexibility to minimize cracking.
- the composition includes an elastomer, a polymerization agent, a co-agent for the polymerization agent, and an unsaturated polycarboxyiic acid.
- the elastomer preferably is cis 1,4-polybutadiene
- the unsaturated polycarboxyiic acid preferably is fumaric acid
- the polymerization agent preferably is dicumyl peroxide
- the coagent preferably is zinc diacrylate (“ZDA").
- the compositions of the invention further may include a filler material.
- the compositions of the invention advantageously avoid zinc oxide that is employed in prior art compositions. Golf balls such as one-piece golf balls formed from the compositions of the invention have high flexibility and high durability.
- the invention provides a novel, cured composition, as well as a golf ball formed of that composition.
- the composition includes an elastomer, a polymerization agent and a co-agent for cross-linking the elastomer, and an unsaturated polycarboxyiic acid.
- the compositions employed are free of alkaline oxides and alkaline earth oxides such as ZnO, MgO,
- compositions which are substantially free of these alkaline oxides and alkaline earth oxides i.e., compositions which have up to about 0.5 parts of alkaline oxides and alkaline earth oxides per about 100 parts elastomer, also may be employed.
- Elastomers which may be used in the compositions of the invention include olefins which can be crosslinked by peroxide polymerization agents.
- the elastomer is cis 1 ,4 polybutadiene because of its very high resiliency and low hysteresis.
- the molecular weight of the cis 1,4 polybutadiene is from about 50,000 weight average to about 500,000 weight average, preferably about 100,000 weight average to about 500,000 weight average.
- Other elastomers which may be used include, for example, ethylene, polypropylene, butene-1, hexene-1, polyisoprene, ethylene/propylene/non-conjugated diolefin terpolymers, styrene/butadiene rubbers, natural rubber, ethylene propylene copolymers, ethylene propylene rubber, synthetic natural rubber and mixtures thereof.
- Peroxide polymerization agents useful in the compositions of the invention include, for example, di-tertbutyl peroxide, dicumyl peroxide, benzoyl peroxide, 2,4-dichlorobenzol peroxide, t-butyl-cumyl peroxide, t-butyl perbenzoate, t-butyl peroxide, t-butylperoxy
- the above polymerization agents are commercially available.
- Co-agents which can be used with the above peroxide polymerization agents include zinc diacrylate, zinc dimethacrylate, trimethlol propane triacrylate, and trimethloyl propane trimethacrylate, preferably zinc diacrylate.
- co-agents which may be employed include vinyl, allyl, methallyl, furfuryl, crotyl and cirmamyl esters of the following acids: oxatic, maionic, succinic, glutaric, adipic, pimelic, suberic, azelaic, sebacic, maleic, itaconic, citraconic, mesaconic, fumaric, aconitic, phthalic, isophthalic, terephthalic, naphthalene, dicarboxylic, mellitic, pyromellitic, trimesic, acrylic, methacrylic, cennamic, and crotonic.
- Polyamine amides and imides of the following acids maleic, itaconic, acrylic, methacrylic crotonic, citaconic, aconitic and cinnamic; polyol esters and anhydrides of acrylic, methacrylic, crotonic and cinnamic acids also may be used as co-agents.
- Other co-agents which may be employed include di- and triallyl cyanurate; di- and triallylmelamine, divinyl benzene; diallyl benzene; diallyl amine; allyl ether; allyl gycolates; di-, tri and tetravinyl and allyl silanes. All of these co-agents are commercially available.
- Unsaturated polycarboxyiic acids which may be employed in the compositions of the invention include maleic acid, fumaric acid, itaconic acid and the like, preferably fumaric acid.
- filler materials can be employed in the compositions of the invention to control the weight of the ball without affecting ball resilience.
- Fillers which are incorporated into the compositions should be in finely divided form, typically in a size generally less than about 20 mesh, preferably less than about 100 mesh U.S. standard size.
- the filler is a precipitated hydrated silica such as that sold under the trademark HiSil by the Pittsburgh Plate Glass Company.
- fillers which may be employed include, for example, silica, clay, talc, mica, asbestos, glass, glass fibers, Barytes(barium sulfate), limestone, Lithopone(zinc sulphide-barium sulfate), titanium dioxide, zinc sulphide, calcium metasilicate, silicon carbide, diatomaceous earth, paniculate carbonaceous materials, micro balloons, arimid fibers, particulate synthetic plastics such as high molecular weight polyethylene, polystyrene, polyethylene, ionomer resins and the like, as well as cotton flock, cellulose flock and leather fiber.
- synthetic plastics such as high molecular weight polyethylene, polystyrene, polyethylene, ionomer resins and the like, as well as cotton flock, cellulose flock and leather fiber.
- Powdered metals such as titanium, tungsten, aluminum, bismuth, nickel, molybdenum, copper, brass and their alloys also may be used as fillers.
- the amount of filler employed is primarily a function of weight restrictions on the weight of a golf ball made from those compositions.
- compositions of the invention also may include various processing aids known in the rubber and molding arts such as fatty acids.
- fatty acids having from about 10 carbon atoms to about 40 carbon atoms, preferably having from about 15 carbon atoms to about 20 carbon atoms, may be used.
- Fatty acids which may be used include stearic acid and linoleic acids, as well as mixtures thereof.
- the fatty acid component is present in amounts of from about 1 part by weight per 100 parts elastomer to about 15 parts by weight per 100 parts elastomer, preferably in amounts of from about 2 parts by weight per 100 parts elastomer to about 5 parts by weight per 100 parts elastomer.
- processing aids include, for example, calcium stearate, barium stearate, zinc stearate, lead stearate, basic lead sulfite, dibasic lead phosphite, dibutyltin dilaurate, dibutyltin dimaleate, dibutyltin mercaptide, as well as dioctyltin and stannane diol derivatives.
- Coloring pigments also may be included in the compositions of the invention.
- Useful coloring pigments include, for example, titanium dioxide, the presence of which simplifies the surface painting operation of the finished ball. In some cases, coloring pigments eliminate the need for painting, such as, for example, where the ball is intended for use on driving ranges.
- compositions of the invention typically include, based on the total weight of the composition, about 100 parts by weight of cis 1 ,4 polybutadiene to about 175 parts by weight of cis 1,4 polybutadiene, preferably about 100 parts by weight of cis 1,4 polybutadiene, zinc diacrylate in an amount of up to about 40 parts by weight, preferably from about 5 parts by weight of zinc diacrylate to about 30 parts by weight of zinc diacrylate, about 4 parts by weight of dicumyl peroxide at 40% concentration to about 7 parts by weight of dicumyl peroxide at 40% concentration, preferably about 4 parts by weight of dicumyl peroxide at 40% concentration to about 5 parts by weight of dicumyl peroxide at 40% concentration, and about 20 parts by weight fumaric acid to about 50 parts by weight fumaric acid, preferably about 20 parts by weight fumaric acid to about 40 parts by weight fumaric acid.
- the amount of filler which can be employed in the compositions is primarily a function of restrictions on the weight of a golf ball formed from the compositions.
- the filler is included in amounts of from about 5 parts by weight per 100 parts elastomer to about 100 parts by weight per 100 parts elastomer.
- Processing aids such as fatty acids, metal stearates and the like may be employed in amounts of from about 1 part by weight per 100 parts elastomer to about 15 parts by weight per 100 parts elastomer, preferably in amounts of from about 2 parts by weight per 100 parts elastomer to about 5 parts by weight per 100 parts elastomer.
- Wide latitude may be taken in the production of balls from the compositions of the invention to provide balls of various compressions suitable for every type of golfer.
- Low compression balls generally preferred by the "soft" hitters or lady golfers, may be made by increasing the proportion of the elastomer component in the composition.
- Medium compression balls preferred by the average golfers, may be made by balancing the amounts of the elastomer, co-agent, peroxide polymerization agent, and fumaric acid.
- High compression balls preferred by the "hard” hitters may be made by increasing the proportions of unsaturated polycarboxyiic acid, co-agent, and peroxide polymerization agent initiator.
- the components of the compositions are intimately mixed, using, for example, two roll mills or a Banbury mixer until the mixture is uniform, usually over a period of from about 5 to about 20 minutes.
- the sequence of addition of components is not critical.
- a preferred mixing sequence is one wherein cis- 1,4 polybutadiene, zinc diacrylate, filler and fumaric acid are blended for about 5 minutes in a Banbury mixer.
- the peroxide polymerization agent is then added and the mixing continued for about one minute.
- the mixed batch then is discharged onto a two roll mill, mixed for about one additional minute and formed into a sheet.
- the temperature of the mixing is not critical, but should, of course, be below the curing temperature. Mixing is generally done at room temperature, although, through friction, the ingredients may be slightly warmed.
- a golf ball formed from compositions of the invention may be made by conventional mixing and compounding procedures used in the rubber industry.
- a golf ball is produced by placing uncured, preformed portions or slugs of the compositions of the invention between two halves of a conventional press mold that has dimpled golf ball cavities therein. Thereafter, pressure is applied to close the two halves of the mold during the curing process.
- the volume of the preformed portions placed in the mold cavities is slightly in excess of the actual volume of the ball cavities to enable the cavities to be completely filled when the mold is closed.
- an extrudate or flash of excess composition typically is formed at the mating surfaces of the closed cavities.
- compositions of the invention can be formed into one-piece golf balls by any one of a variety of known molding techniques, e.g. injection molding, compression molding or transfer molding.
- the molded balls are cured by heating at about 275 °F to about 350°F under a pressure of about 100 PSI-500 PSI, preferably about 500 PSI per ball.
- the time required for curing is normally about 10 minutes to about 20 minutes depending upon the amount and activity of the selected peroxide polymerization agent and co-agent.
- curing of the compositions is between about 300°F and about 340°F for about 10 minutes to about 30 minutes, more preferably, about 320 °F for about 20 minutes.
- the resulting balls are cooled for about 10 minutes in the mold by circulating cold water through the mold.
- the molded balls, with dimples, are trimmed to remove the flash line and the ball surface is treated to facilitate good paint adhesion.
- Surface treatment of the dimpled ball can be performed by several techniques known in the art, such as corona discharge, ozone treatment, chlorination, sand blasting, etc. the ball is then given one coat of paint, stamped and clear coated.
- the core is surface treated to facilitate adhesion to covering compositions.
- Surface treatment of the core can be performed by several techniques known in the art, such as corona discharge, ozone treatment, sand blasting, brush tumbling, and the like. Preferably, surface treatment is effected by grinding with an abrasive wheel.
- a cover then can be applied in accordance with known procedures.
- Useful cover compositions include blends of ethylene-acrylic acid or ethylene-methacrylic acid, as well as copolymers neutralized with mono- or divalent metals such as sodium, potassium, lithium, calcium, zinc or magnesium. Such compositions are disclosed in U.S. Patent No. 5,368,304, the disclosure of which is incorporated herein by the entirety by reference.
- Examples 1-22 shown in Table I show one-piece golf balls prepared from various compositions, molding pressures and curing conditions to yield one-piece golf balls of from about 60 PGA compression to about 100 PGA compression.
- the balls produced in accordance with the invention have increased durability and flexibility. These characteristics make them especially suited for use as range balls. For example, balls such as those formed from examples 8, 9, 14-16, 21 and 22 which do not employ ZnO and which are subjected to the "Guillotine Cut Test" pass that test.
- Example 23 shown in Table II shows the negative effect of adding ZnO as the ball has a PGA compression of only 2.
- the same formulation without ZnO shown as example 1 in Table I has a PGA compression of 65-70 and is very durable.
- the "Guillotine Cut Test” is performed by holding the ball firmly in a cavity to expose the top half of the ball.
- a guillotine blade weighing 5 pounds and having inner and outer blade edge angles of 90° and 60°, respectively, and a cutting edge of three sixty fourths inch radius is dropped from a height of 3.5 feet to strike the ball at one half inch off the top center point.
- the guillotine blade is guided during the drop by means of a substantially friction-free vertical track.
- Ball failure is defined as permanent damage evidenced by a crack or by removal of a segment from the ball surface.
- the present invention relates most particularly to the use of a novel composition of matter in a golf ball.
- Other extensive applications may also be mentioned. These include, for example, the manufacture of printing plates, coverings for rolls or the manufacture of rolls per se, protective bumpers, bowling balls, insulators, floor tiles, shoe soles and heels, battery boxes, solid tired and the like.
- Other applications are possible for the compositions of the invention where properties of resilience, toughness and high impact resistance are required. While certain representative embodiments and details of the present invention have been shown for the purposes of illustrating the invention, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the spirit or scope of the invention.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0213549A GB2382310A (en) | 1999-12-06 | 2000-12-06 | One-piece golf ball |
CA 2393563 CA2393563A1 (en) | 1999-12-06 | 2000-12-06 | One-piece golf ball |
AU20624/01A AU2062401A (en) | 1999-12-06 | 2000-12-06 | One-piece golf ball |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45588099 | 1999-12-06 | ||
US09/455,880 | 1999-12-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001039843A1 true WO2001039843A1 (en) | 2001-06-07 |
WO2001039843A9 WO2001039843A9 (en) | 2002-07-25 |
Family
ID=53488488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/033025 WO2001039843A1 (en) | 1999-12-06 | 2000-12-06 | One-piece golf ball |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU2062401A (en) |
CA (1) | CA2393563A1 (en) |
GB (1) | GB2382310A (en) |
WO (1) | WO2001039843A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3001971A1 (en) * | 2013-02-14 | 2014-08-15 | Rhodia Operations | USE OF A POLYCARBOXYLIC ACID WHEN PREPARING AN ELASTOMER COMPOSITION (S) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3671477A (en) * | 1969-03-10 | 1972-06-20 | Campbell Mfg Co Ltd | Composition comprising unsaturated elastomer,epoxy resin polycarboxylic acid or anhydride,cross-linking catalyst and filler and golf ball made therefrom |
JPS6094434A (en) * | 1983-10-31 | 1985-05-27 | Yokohama Rubber Co Ltd:The | Rubber composition for golf ball core use |
US4974852A (en) * | 1988-12-28 | 1990-12-04 | Sumitomo Rubber Industries, Ltd. | One-piece solid golf ball |
US5150905A (en) * | 1987-06-11 | 1992-09-29 | Asics Corporation | Rubber composition and golf ball comprising it |
US5998506A (en) * | 1995-10-13 | 1999-12-07 | Spalding Sports Worldwide, Inc. | One-piece golf ball |
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2000
- 2000-12-06 AU AU20624/01A patent/AU2062401A/en not_active Abandoned
- 2000-12-06 GB GB0213549A patent/GB2382310A/en not_active Withdrawn
- 2000-12-06 CA CA 2393563 patent/CA2393563A1/en not_active Abandoned
- 2000-12-06 WO PCT/US2000/033025 patent/WO2001039843A1/en active Application Filing
Patent Citations (5)
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US3671477A (en) * | 1969-03-10 | 1972-06-20 | Campbell Mfg Co Ltd | Composition comprising unsaturated elastomer,epoxy resin polycarboxylic acid or anhydride,cross-linking catalyst and filler and golf ball made therefrom |
JPS6094434A (en) * | 1983-10-31 | 1985-05-27 | Yokohama Rubber Co Ltd:The | Rubber composition for golf ball core use |
US5150905A (en) * | 1987-06-11 | 1992-09-29 | Asics Corporation | Rubber composition and golf ball comprising it |
US4974852A (en) * | 1988-12-28 | 1990-12-04 | Sumitomo Rubber Industries, Ltd. | One-piece solid golf ball |
US5998506A (en) * | 1995-10-13 | 1999-12-07 | Spalding Sports Worldwide, Inc. | One-piece golf ball |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3001971A1 (en) * | 2013-02-14 | 2014-08-15 | Rhodia Operations | USE OF A POLYCARBOXYLIC ACID WHEN PREPARING AN ELASTOMER COMPOSITION (S) |
WO2014125071A1 (en) * | 2013-02-14 | 2014-08-21 | Rhodia Operations | Use of a polycarboxylic acid in the production of an elastomer composition |
CN105121537A (en) * | 2013-02-14 | 2015-12-02 | 罗地亚经营管理公司 | Use of a polycarboxylic acid in the production of an elastomer composition |
JP2016513154A (en) * | 2013-02-14 | 2016-05-12 | ローディア オペレーションズ | Use of polycarboxylic acids in the preparation of elastomeric compositions |
Also Published As
Publication number | Publication date |
---|---|
CA2393563A1 (en) | 2001-06-07 |
WO2001039843A9 (en) | 2002-07-25 |
GB0213549D0 (en) | 2002-07-24 |
GB2382310A (en) | 2003-05-28 |
AU2062401A (en) | 2001-06-12 |
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