GB1058307A - Bowling pin and method of its manufacture - Google Patents

Bowling pin and method of its manufacture

Info

Publication number
GB1058307A
GB1058307A GB15147/64A GB1514764A GB1058307A GB 1058307 A GB1058307 A GB 1058307A GB 15147/64 A GB15147/64 A GB 15147/64A GB 1514764 A GB1514764 A GB 1514764A GB 1058307 A GB1058307 A GB 1058307A
Authority
GB
United Kingdom
Prior art keywords
core
polylactam
cover
foamed
april
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
GB15147/64A
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.)
Polymer Corp
Original Assignee
Polymer Corp
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 Polymer Corp filed Critical Polymer Corp
Publication of GB1058307A publication Critical patent/GB1058307A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63D—BOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
    • A63D9/00—Pins
    • 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
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • 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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/321—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed part being a lining, e.g. a film or a support lining
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides 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
    • B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
    • 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
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyamides (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

1,058,307. Bowling pins. POLYMER CORPORATION. April 13, 1964 [April 12, 1963], No. 15147/64. Heading A6D. [Also in Division B5]. A bowling pin comprises a foamed polylactam core and a solid polylactam cover, and is formed by a moulding process. One method of making the pin comprises forming the core first by inserting into a heated mould a lactam monomer, a catalyst, a promotor and a blowing agent, the core being formed by the simultaneous blowing of the blowing agent and polymerization of the core material by the heat of the mould the completed core is then placed in a second heated mould having a larger cavity than the first, and is coated with a polymerizable mixture composed of a lactam monomer, a catalyst and a promoter. Alternatively, the cover (of nylon for example) is moulded first about a temporary core. the latter being subsequently removed from the cover, which is then filled with a polymerizable mixture to make a foamed polylactam core as above.
GB15147/64A 1963-04-12 1964-04-13 Bowling pin and method of its manufacture Expired GB1058307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27278863A 1963-04-12 1963-04-12

Publications (1)

Publication Number Publication Date
GB1058307A true GB1058307A (en) 1967-02-08

Family

ID=23041278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15147/64A Expired GB1058307A (en) 1963-04-12 1964-04-13 Bowling pin and method of its manufacture

Country Status (3)

Country Link
DE (1) DE1504709A1 (en)
GB (1) GB1058307A (en)
NL (1) NL6403902A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3580577A (en) * 1968-05-09 1971-05-25 Du Pont Copolylactam bowling pin
GB2219237A (en) * 1988-06-01 1989-12-06 John Hine Limited Shaped packaging
US5354239A (en) * 1989-01-09 1994-10-11 Mueller-Perry Co., Inc. Bowling pin with interlocking shell to form core and base
US5630762A (en) * 1989-01-09 1997-05-20 Mueller-Perry Co., Inc. Method of making a bowling pin having expanded copolymer core

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1096545A (en) * 1965-04-05 1967-12-29 American Mach & Foundry Bowling pins and method of making same
DE102016209702A1 (en) * 2016-06-02 2017-12-07 Bayerische Motoren Werke Aktiengesellschaft Method and device for producing a structural component and structural component

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3580577A (en) * 1968-05-09 1971-05-25 Du Pont Copolylactam bowling pin
GB2219237A (en) * 1988-06-01 1989-12-06 John Hine Limited Shaped packaging
US5354239A (en) * 1989-01-09 1994-10-11 Mueller-Perry Co., Inc. Bowling pin with interlocking shell to form core and base
US5630762A (en) * 1989-01-09 1997-05-20 Mueller-Perry Co., Inc. Method of making a bowling pin having expanded copolymer core

Also Published As

Publication number Publication date
NL6403902A (en) 1964-10-13
DE1504709A1 (en) 1969-10-09

Similar Documents

Publication Publication Date Title
ES8406944A1 (en) Reaction injection molding method.
GB1058307A (en) Bowling pin and method of its manufacture
JPS51576A (en) Method and device for the production of articles having a non-cellular smooth skin and a cellular from polymer materials
PH14958A (en) A cross-linking and foaming injection molding process for ethylenic polymers and an apparatus for performing the same
ES453103A1 (en) Process for moulding cellular polycarbodiimide
ES403902A1 (en) Method for preparing a completely covered foam molding
JPS5669138A (en) Synthetic resin multimaterial quality injection molding method and its laminated molding product
JPS51136763A (en) Method of molding articles of troidal form
JPS5441960A (en) Method of making foaming mold using injection molding liner
JPS5349059A (en) Method of producing spotted pattern injection molded article and synthetic material injection molding machine executing same
ES422583A1 (en) A procedure for the manufacture of hollow bodies from synthetic thermoplastic material. (Machine-translation by Google Translate, not legally binding)
JPS57105323A (en) Method for molding synthetic resin
JPS5684927A (en) Manufacture of composite cellular molding
JPS54111557A (en) Hollow molded article having integrated internal ribs, and method for forming the same
GB1463731A (en) Method of forming an optical member such as a lens
ES372732A1 (en) Improvements in or relating to the moulding of articles of a cellular thermoplastic material
GB1115573A (en) Method of producing moulded articles in expanded cellular rubber
GB1397771A (en) Manufacture of moulds for the production of moulded pile materials
EP0173447A3 (en) Hollow body injection moulding process using a soluble core
GB1383692A (en) Support of the bobbin type for textile threads
JPS5574848A (en) Method of providing hole in synthetic resin mold product
SU582977A1 (en) Mould for making reinforced articles
JPS5563243A (en) Method of forming multilayer injection molding
GB1191155A (en) Method and Apparatus for Producing Pipe Couplings
JPS5597940A (en) Molding method of and apparatus for linked molding