ZA764498B - Improvements in games balls constructed from plastics materials - Google Patents

Improvements in games balls constructed from plastics materials

Info

Publication number
ZA764498B
ZA764498B ZA764498A ZA764498A ZA764498B ZA 764498 B ZA764498 B ZA 764498B ZA 764498 A ZA764498 A ZA 764498A ZA 764498 A ZA764498 A ZA 764498A ZA 764498 B ZA764498 B ZA 764498B
Authority
ZA
South Africa
Prior art keywords
plastics materials
games balls
balls constructed
constructed
games
Prior art date
Application number
ZA764498A
Inventor
J Cartledge
Original Assignee
Nylex Corp 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 Nylex Corp Ltd filed Critical Nylex Corp Ltd
Publication of ZA764498B publication Critical patent/ZA764498B/en

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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1285—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being foamed
    • 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
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1266—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being completely encapsulated, e.g. for packaging purposes or as reinforcement
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/34—Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
ZA764498A 1975-07-28 1976-07-27 Improvements in games balls constructed from plastics materials ZA764498B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPC254575 1975-07-28

Publications (1)

Publication Number Publication Date
ZA764498B true ZA764498B (en) 1977-07-27

Family

ID=3766303

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA764498A ZA764498B (en) 1975-07-28 1976-07-27 Improvements in games balls constructed from plastics materials

Country Status (5)

Country Link
JP (1) JPS5234831A (en)
GB (1) GB1507433A (en)
IN (1) IN144769B (en)
NZ (1) NZ181548A (en)
ZA (1) ZA764498B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177216A (en) * 1985-01-31 1986-08-08 Inoue Mtp Co Ltd Manufacture of plastic foam
JPS62152485A (en) * 1985-12-27 1987-07-07 遠藤　晴男 Production of hard ball for baseball
FR2621527B1 (en) * 1987-05-29 1990-04-13 Jarlan Alexandre PROCESS FOR PRODUCING A COMPOSITE CONSTRUCTION MATERIAL BASED ON POLYURETHANE AND A PRODUCT THUS OBTAINED
GB2239625A (en) * 1990-01-08 1991-07-10 Julip Limited Moulding a soft toy having deformable limbs
JPH0444218U (en) * 1990-08-20 1992-04-15
JPH0456121U (en) * 1990-09-19 1992-05-14
DE4131207A1 (en) * 1991-09-19 1993-03-25 Bayer Ag METHOD FOR PRODUCING COMPOSITE BODIES
AU2001294762A1 (en) * 2000-10-11 2002-04-22 Bruce Allen Mayer Ii Hockey ball especially for street use
GB0810369D0 (en) * 2008-06-06 2008-07-09 Mcardle Trevor J Improvements in and relating to cricket or cricket derived games and equipment therefor
CN102689379B (en) * 2011-03-25 2014-03-26 台慧(厦门)运动器材有限公司 Baseball and softball manufacturing method and ball coat manufacturing mold thereof
CN102248617B (en) * 2011-03-25 2014-03-26 台慧(厦门)运动器材有限公司 Baseball and softball shaping mold and shaping method
US9101800B2 (en) 2011-07-08 2015-08-11 Rawlings Sporting Goods Company, Inc. Molded game ball

Also Published As

Publication number Publication date
JPS5234831A (en) 1977-03-17
NZ181548A (en) 1978-11-13
GB1507433A (en) 1978-04-12
IN144769B (en) 1978-07-01

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