GB1108555A - Improvements relating to playballs - Google Patents

Improvements relating to playballs

Info

Publication number
GB1108555A
GB1108555A GB28325/64A GB2832564A GB1108555A GB 1108555 A GB1108555 A GB 1108555A GB 28325/64 A GB28325/64 A GB 28325/64A GB 2832564 A GB2832564 A GB 2832564A GB 1108555 A GB1108555 A GB 1108555A
Authority
GB
United Kingdom
Prior art keywords
rubber
synthetic
natural
reinforcing
synthetic resin
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
GB28325/64A
Inventor
Robert Christopher Haines
Patrick Joseph Corish
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 Co Ltd
Original Assignee
Dunlop 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 Co Ltd filed Critical Dunlop Co Ltd
Priority to GB28325/64A priority Critical patent/GB1108555A/en
Priority to US467704A priority patent/US3432165A/en
Priority to DE19651478021 priority patent/DE1478021C/en
Publication of GB1108555A publication Critical patent/GB1108555A/en
Priority to MY197041A priority patent/MY7000041A/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
    • B29D22/00—Producing hollow articles
    • B29D22/04—Spherical articles, e.g. balls
    • 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
    • B29K2007/00—Use of natural rubber as moulding material
    • 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
    • B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
    • 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
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • 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
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • 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
    • B29K2423/00—Use of polyalkenes or derivatives thereof as filler
    • 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
    • B29K2423/00—Use of polyalkenes or derivatives thereof as filler
    • B29K2423/10—Polymers of propylene
    • B29K2423/12—PP, i.e. polypropylene
    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00—Amusement devices: games
    • Y10S273/12—Propylene
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00—Amusement devices: games
    • Y10S273/16—Acrylic

Abstract

Compositions for the manufacture of playball shells, e.g. for tennis balls, comprise a vulcanized natural and/or synthetic rubber containing a reinforcing filler having a density of 0.8-1.25 gms./c.c. which is a thermoplastic synthetic resin of the reinforcing type (i.e. a synthetic resin capable of forming articles in an uncompounded state) particles of which are dispersed preferably in amounts of 20 to 40% by weight of rubber used in a matrix of the vulcanized natural and/or sythetic rubber composition. Synthetic resins specified are polyethylene, polypropylene and acrylonitrile-butadiene-styrene interpolymers and rubbers used include natural rubber and polybutadiene.ALSO:Hollow playball shells for tennis balls comprise a self-supporting hollow sphere of a vulcanised natural and/or synthetic rubber composition containing a reinforcing filler having a density of 0.8 - 1.25 grams/c.c. constituted by a thermoplastic synthetic resin of the self-reinforcing type (i.e. a synthetic resin capable of forming articles in an uncompounded state.) particles of which are dispersed preferably in amounts of 20 to 40% by weight of rubber used in a matrix of the vulcanised natural and/or synthetic rubber composition. Synthetic resins specified include polyethylene polypropylene and acrylonitrile-butadiene-styrene inter-polymers, and rubbers used include natural rubber and polybutadiene. The shells have zero or up to 6 p.s.i. super atmospheric internal pressure. The compositions may also contain as reinforcing resins finely divided cellulosic materials and thermosetting synthetic resins of the phenolic type having a density of 0.8 - 1.25 gm./c.c. and a particle size of not greater than 50 mesh B.S.S. The high resilience and resistance of the shell to deformation is derived from the composition used and the internal pressure may be obtained from nitrogen generating ingredients present in the composition which form nitrogen gas during manufacture.
GB28325/64A 1964-07-09 1964-07-09 Improvements relating to playballs Expired GB1108555A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB28325/64A GB1108555A (en) 1964-07-09 1964-07-09 Improvements relating to playballs
US467704A US3432165A (en) 1964-07-09 1965-06-28 Game ball
DE19651478021 DE1478021C (en) 1964-07-09 1965-07-09 Ball covers for game balls
MY197041A MY7000041A (en) 1964-07-09 1970-12-31 Improvements relating to playballs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28325/64A GB1108555A (en) 1964-07-09 1964-07-09 Improvements relating to playballs

Publications (1)

Publication Number Publication Date
GB1108555A true GB1108555A (en) 1968-04-03

Family

ID=10273886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28325/64A Expired GB1108555A (en) 1964-07-09 1964-07-09 Improvements relating to playballs

Country Status (3)

Country Link
US (1) US3432165A (en)
GB (1) GB1108555A (en)
MY (1) MY7000041A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4765853A (en) * 1987-10-07 1988-08-23 Hoffman Allan C Method of making a pressurized ball
US20200070010A1 (en) * 2018-08-28 2020-03-05 Wilson Sporting Goods Co. Tennis ball
US11951360B2 (en) 2018-08-28 2024-04-09 Wilson Sporting Goods Co. Tennis ball

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1127378A (en) * 1966-06-28
US3572722A (en) * 1966-07-22 1971-03-30 Dunlop Co Ltd Play balls
US3965055A (en) * 1972-09-21 1976-06-22 Uniroyal Inc. Free curing rubber composition
US4238537A (en) * 1978-12-18 1980-12-09 The National Latex Products Company Process for rotational molding utilizing EVA and products produced therefrom
US5304587A (en) * 1991-12-19 1994-04-19 Moore Business Forms, Inc. Water resistant security ink composition
US6325730B1 (en) 1992-04-24 2001-12-04 Spalding Sports Worldwide, Inc. Golf ball with soft core
US6376612B1 (en) 1992-04-24 2002-04-23 Spalding Sports Worldwide, Inc. Golf ball
US6394915B1 (en) 1992-04-24 2002-05-28 Spalding Sports Worldwide, Inc. Golf ball cores formed from blends of neodymium and cobalt synthesized high molecular weight butadiene rubber
US6315684B1 (en) 1992-04-24 2001-11-13 Spalding Sports Worldwide, Inc. Golf ball with soft core
US6277920B1 (en) 1992-04-24 2001-08-21 Spalding Sports Worldwide, Inc. Golf ball cores formed from ultra-high mooney viscosity butadiene rubber
CA2081067C (en) * 1992-04-24 2002-01-08 R. Dennis Nesbitt Golf ball core compositions
US6422953B1 (en) 1992-04-24 2002-07-23 Spalding Sports Worldwide, Inc. Golf ball
US6413172B1 (en) 1992-04-24 2002-07-02 Spalding Sports Worldwide, Inc. Golf ball with soft core
US6419594B1 (en) 1993-06-01 2002-07-16 Spalding Sports Worldwide, Inc. Distance multi-layer golf ball
US7199192B2 (en) * 2004-12-21 2007-04-03 Callaway Golf Company Golf ball

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA636395A (en) * 1962-02-13 J. Crowley Cornelius Composite cover and method of making same
CA609566A (en) * 1960-11-29 Dunlop Rubber Company Limited Games balls

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4765853A (en) * 1987-10-07 1988-08-23 Hoffman Allan C Method of making a pressurized ball
US20200070010A1 (en) * 2018-08-28 2020-03-05 Wilson Sporting Goods Co. Tennis ball
US10918913B2 (en) * 2018-08-28 2021-02-16 Wilson Sporting Goods Co. Tennis ball
US11951360B2 (en) 2018-08-28 2024-04-09 Wilson Sporting Goods Co. Tennis ball

Also Published As

Publication number Publication date
US3432165A (en) 1969-03-11
MY7000041A (en) 1970-12-31
DE1478021A1 (en) 1970-01-08

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