GB911147A - Production of golf balls - Google Patents

Production of golf balls

Info

Publication number
GB911147A
GB911147A GB3860357A GB3860357A GB911147A GB 911147 A GB911147 A GB 911147A GB 3860357 A GB3860357 A GB 3860357A GB 3860357 A GB3860357 A GB 3860357A GB 911147 A GB911147 A GB 911147A
Authority
GB
United Kingdom
Prior art keywords
butadiene
rubber
irradiation
elastomer
referred
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3860357A
Inventor
Albert Edward Toney Neale
Stanley Richard Harrison
Denis Anthony Norman Osborne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB3860357A priority Critical patent/GB911147A/en
Publication of GB911147A publication Critical patent/GB911147A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0042—Producing plain balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/54—Balls

Abstract

A cover comprises a mixture containing 60-90% of a polyolefin having a Vicat softening point greater than 83 DEG C., which can be crosslinked by irradiation, and an elastomer is moulded on to an elastic core and irradiated with high energy ionizing radiations to obtain a golf ball with improved hardness, resilience and cutting resistance which, due to the absence of vulcanizing agents, may be painted directly without the use of undercoats or chemical treatment. The irradiation is preferably carried out in the absence of oxygen whilst turning the balls to ensure even exposure. Polyolefins referred to are polyethylene and polypropylene; elastomers referred to are natural rubber, butadiene-styrene, butadiene-methacrylate and butadiene-acrylonitrile rubbers, butyl rubber (a copolymer of an iso-olefin and a diene), polyisobutylene, copolymers of olefins, e.g. ethylene and propylene alone or with a higher olefin and graft polymers of natural or synthetic rubber. As a result of the irradiation cross-linking of the polyolefin takes place and there may also be cross-linking with the elastomer, especially in the case of butyl rubber and polyethylene. In the examples, the polymer composition also contained titanium oxide pigment. Radiations referred to are thermal neutrons, g -rays, X-rays, protons, electrons and helium nuclei; conventional sources may be used. The Provisional Specification is not restricted to the treatment of golf balls but includes the treatment of compositions of a thermoplastic resinous material which can be cross-linked by means of ionizing radiations and a compatible elastomer. The invention may be applied to cables. In addition to polyolefins, the thermoplastic material may be gutta percha, balata, styrene-butadiene resins, butadiene-methacrylate resins and cyclized rubber. In a first example, a mixture of natural rubber, gutta percha, titanium oxide and zinc oxide moulded on to normal golf ball cores is irradiated.
GB3860357A 1957-12-12 1957-12-12 Production of golf balls Expired GB911147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3860357A GB911147A (en) 1957-12-12 1957-12-12 Production of golf balls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3860357A GB911147A (en) 1957-12-12 1957-12-12 Production of golf balls

Publications (1)

Publication Number Publication Date
GB911147A true GB911147A (en) 1962-11-21

Family

ID=10404523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3860357A Expired GB911147A (en) 1957-12-12 1957-12-12 Production of golf balls

Country Status (1)

Country Link
GB (1) GB911147A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3454280A (en) * 1965-02-10 1969-07-08 Dunlop Rubber Co Golf balls having covers of ethylene-unsaturated monocarboxylic acid copolymer compositions
US5857925A (en) * 1997-07-11 1999-01-12 Lisco, Inc. Golf ball and method of making same
US5891973A (en) * 1996-02-06 1999-04-06 Lisco, Inc. Method of improving scuff and cut resistance of ionomer covered game ball
US6099416A (en) * 1996-02-06 2000-08-08 Spalding Sports Worlwide, Inc. Method of improving scuff and cut resistance of cover for game ball
US6228940B1 (en) 1996-02-06 2001-05-08 Spalding Sports Worldwide, Inc. Method of improving scuff and cut resistance of ionomer covered game ball

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3454280A (en) * 1965-02-10 1969-07-08 Dunlop Rubber Co Golf balls having covers of ethylene-unsaturated monocarboxylic acid copolymer compositions
US5891973A (en) * 1996-02-06 1999-04-06 Lisco, Inc. Method of improving scuff and cut resistance of ionomer covered game ball
US6099416A (en) * 1996-02-06 2000-08-08 Spalding Sports Worlwide, Inc. Method of improving scuff and cut resistance of cover for game ball
US6228940B1 (en) 1996-02-06 2001-05-08 Spalding Sports Worldwide, Inc. Method of improving scuff and cut resistance of ionomer covered game ball
US5857925A (en) * 1997-07-11 1999-01-12 Lisco, Inc. Golf ball and method of making same

Similar Documents

Publication Publication Date Title
GB1380884A (en) Dynamically partially cured thermoplastic blend of monoolefin copolymer rubber and polyolefin plastic
GB1384261A (en) Thermoplastic blend of partially cured monoolefin copolymer rubber and polyolefin plastic
ES454255A1 (en) Thermoplastic compositions of high unsaturation diene rubber and polyolefin resin
GB886794A (en) Preparation and vulcanization of articles
JPS5634732A (en) Composition for crosslinked polyolefin foam
GB1029991A (en) Pigment preparations for colouring synthetic resins and synthetic or natural rubbers
JPS5773031A (en) Manufacture of polyolefinic plastic elastic composition by dynamic vulcanization
ES259726A1 (en) Process for vulcanizing pre-shaped articles formed from vulcanizable polymeric materials
GB911147A (en) Production of golf balls
GB1294665A (en) Cross-linked articles
GB714907A (en) Improvements in curing bag
GB896939A (en) Process for preparing vulcanised elastomers containing alpha-olefin polymers and copolymers
US2445283A (en) Curing olefin-diolefin copolymers
GB1062488A (en) A vulcanised moulding compound based on polypropylene and rubber
GB1212017A (en) Process for cross-linking chain-saturated polymers
GB607828A (en) Improvements in plastic rivets and method of making same
GB1007158A (en) Thermosetting composition
GB910877A (en) Process of curing ethylene/alpha-olefin copolymers and product thereof
GB1277262A (en) Polymer blends
GB1493570A (en) Covulcanizable compositions
GB919823A (en) Curing of polymeric compositions
GB901737A (en) Improvements in or relating to oil-extended polymers
GB1204989A (en) Improvements in or relating to cable fittings
GB885787A (en) Stabilizing polymers
GB938030A (en) Co-vulcanizable and co-vulcanized mixes of olefins co-polymers and polymers