GB847493A - Method of making plastic covered golf balls - Google Patents

Method of making plastic covered golf balls

Info

Publication number
GB847493A
GB847493A GB3373656A GB3373656A GB847493A GB 847493 A GB847493 A GB 847493A GB 3373656 A GB3373656 A GB 3373656A GB 3373656 A GB3373656 A GB 3373656A GB 847493 A GB847493 A GB 847493A
Authority
GB
United Kingdom
Prior art keywords
temperature
polyethylene
blanks
mould
pressure
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
GB3373656A
Inventor
Robert Fulton Smith
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.)
Worthington Ball Co
Original Assignee
Worthington Ball Co
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 Worthington Ball Co filed Critical Worthington Ball Co
Priority to GB3373656A priority Critical patent/GB847493A/en
Publication of GB847493A publication Critical patent/GB847493A/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
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/22—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using layers or sheathings having a shape adapted to the shape of the article
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • 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
    • B29C70/70—Completely encapsulating inserts
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • 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
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • 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
    • 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
    • B29L2031/545—Football balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

847,493. Moulding polyethylene golf balls. WORTHINGTON BALL CO. Nov. 5, 1956, No. 33736/56. Class 87(2). [Also in Group XV] A method of moulding golf balls having a cover of polyethylene comprises injection moulding the material to form blanks 1, assembling two blanks 1 around a core 7 and compression moulding the assembly, at a temperature and pressure insufficient to distort the core, to form a golf ball. Polyethylene is heated until liquid at a temperature of from 475‹F. to 550‹F. and injected under a pressure of 10,000 p.s.i. into a multi-cavity mould whose temperature is from 60‹F. to 100‹F. to set into blanks 1. The blanks 1 are then assembled around a wound rubber core 7, the assemblies placed in a multi-cavity compression mould 8, 9 preheated to a temperature of from 305‹F. to 310‹F., and are moulded for from two and threequarters to three and one-half minutes at a pressure of 300 p.s.i., whilst maintaining the mould temperature. The pressure is then increased to 1,800 p.s.i. and cooling fluid at a temperature of 38‹F. is passed through the mould to lower its temperature to set the polyethylene at a temperature of 150‹F. The polyethylene cups are said to bond to the rubber core. Polyethylene, gutta-percha, synthetic butyl rubber, high styrene butadiene resin compositions may be used.
GB3373656A 1956-11-05 1956-11-05 Method of making plastic covered golf balls Expired GB847493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3373656A GB847493A (en) 1956-11-05 1956-11-05 Method of making plastic covered golf balls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3373656A GB847493A (en) 1956-11-05 1956-11-05 Method of making plastic covered golf balls

Publications (1)

Publication Number Publication Date
GB847493A true GB847493A (en) 1960-09-07

Family

ID=10356798

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3373656A Expired GB847493A (en) 1956-11-05 1956-11-05 Method of making plastic covered golf balls

Country Status (1)

Country Link
GB (1) GB847493A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0945567A2 (en) * 1998-03-27 1999-09-29 Videoplastic S.p.A. Outdoor pole and process of manufacture thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0945567A2 (en) * 1998-03-27 1999-09-29 Videoplastic S.p.A. Outdoor pole and process of manufacture thereof
EP0945567A3 (en) * 1998-03-27 2001-12-12 Videoplastic S.p.A. Outdoor pole and process of manufacture thereof

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