GB964886A - Improvements in and relating to nibs of ball point pens - Google Patents

Improvements in and relating to nibs of ball point pens

Info

Publication number
GB964886A
GB964886A GB33524/59A GB3352459A GB964886A GB 964886 A GB964886 A GB 964886A GB 33524/59 A GB33524/59 A GB 33524/59A GB 3352459 A GB3352459 A GB 3352459A GB 964886 A GB964886 A GB 964886A
Authority
GB
United Kingdom
Prior art keywords
lbs
per square
square inch
compression
filler
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
GB33524/59A
Inventor
Hans Reinhard Fehling
Edward Henry Harvey
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.)
IRC Ltd
Original Assignee
IRC 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
Priority to NL256433D priority Critical patent/NL256433A/xx
Application filed by IRC Ltd filed Critical IRC Ltd
Priority to GB33524/59A priority patent/GB964886A/en
Priority to US58759A priority patent/US3166618A/en
Priority to CH752163A priority patent/CH405701A/en
Priority to FR839834A priority patent/FR1387001A/en
Publication of GB964886A publication Critical patent/GB964886A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/16—Solid spheres
    • C08K7/18—Solid spheres inorganic
    • 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
    • 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
    • B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K1/00—Nibs; Writing-points
    • B43K1/08—Nibs; Writing-points with ball points; Balls or ball beds
    • 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
    • B29L2031/725—Drawing or writing equipment
    • B29L2031/7252—Pens, ball-point pens

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Pens And Brushes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

The nib portion of a ball-point reservoir pen is made by injection moulding with a material comprising a thermoplastic substance loaded with at least 20% by volume with a finely dispersed solid filler which has an elasticity modulus in compression of not less than 2X106 lbs. per square inch, and has a melting point above the moulding temperature of the thermoplastic material, the elasticity modulus in compression of the resultant moulded material being not less 6X105 lbs. per square inch and preferably more than 8X105 lbs. per square inch. The thermoplastic substance has a compression modulus of not less than 1X105. Examples of thermoplastics are synthetic polyamide resins, such as nylon or polyhexamethylene-sebacamide, and polycarbonate or acetal resins, such as polycarbonic acid ester of 4,4-dihydroxydiphenyl-2, 2 propane. The filler may comprise minute beads of copper, aluminium, glass, or mica, and where copper is used, the beads may be silver plated. Small quantities of pigments and graphite or molybdenum disulphide may be added. In one example, a powdered matrix of polyhexamethylene-sebacamide having a compression modulus of 3X105 lbs. per square inch when completely dry, is mixed with 45% of a filler of electrolytic grade pure copper powder in bead form and particle size 0.0001 inch to 0.0015 inch, such that the injection moulded material has a compression modulus of 11X105 lbs. per square inch. In other examples, the filler consists of 51% of glass powder in bead form, or 11% of mica powder in flake form.
GB33524/59A 1959-10-02 1959-10-02 Improvements in and relating to nibs of ball point pens Expired GB964886A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL256433D NL256433A (en) 1959-10-02
GB33524/59A GB964886A (en) 1959-10-02 1959-10-02 Improvements in and relating to nibs of ball point pens
US58759A US3166618A (en) 1959-10-02 1960-09-27 Method of making a nib for a ball point writing instrument
CH752163A CH405701A (en) 1959-10-02 1960-09-29 Material for injection molding
FR839834A FR1387001A (en) 1959-10-02 1960-09-29 Improvements to ballpoint pen tips and materials for making these tips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33524/59A GB964886A (en) 1959-10-02 1959-10-02 Improvements in and relating to nibs of ball point pens

Publications (1)

Publication Number Publication Date
GB964886A true GB964886A (en) 1964-07-22

Family

ID=10354081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33524/59A Expired GB964886A (en) 1959-10-02 1959-10-02 Improvements in and relating to nibs of ball point pens

Country Status (4)

Country Link
US (1) US3166618A (en)
CH (1) CH405701A (en)
GB (1) GB964886A (en)
NL (1) NL256433A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3254147A (en) * 1961-12-29 1966-05-31 Nakada Tozaburo Method of manufacturing ball-pen points of synthetic resin
US3418705A (en) * 1966-06-15 1968-12-31 Gen Electric Method and apparatus for mounting shafts and like devices in plastic cabinets
FR1568912A (en) * 1967-03-30 1969-05-30
US3520630A (en) * 1968-03-01 1970-07-14 Coors Porcelain Co Ballpoint assembly
US3708234A (en) * 1970-03-10 1973-01-02 Pentel Kk Ball holder of ball-point pen
GB1483999A (en) * 1976-04-10 1977-08-24 Engraving Specialists Ltd Method of producing a moulded plastics article
US4134199A (en) * 1977-09-16 1979-01-16 Modern Mold & Tool Corp. Method for producing ball point pen nibs
US4368184A (en) * 1977-11-21 1983-01-11 Carter-Wallace, Inc. Method for the application of antiperspirant powder compositions
US4652602A (en) * 1985-06-04 1987-03-24 General Electric Company Blow-moldable polycarbonate resin compositions
DE3818786C1 (en) * 1988-06-02 1990-03-22 J. S. Staedtler Gmbh & Co, 8500 Nuernberg, De
EP3590726A1 (en) * 2018-07-03 2020-01-08 Société BIC Textured ball seat

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542263A (en) * 1947-01-31 1951-02-20 Clearing Machine Corp Plastic molding
US2660151A (en) * 1948-04-28 1953-11-24 Scripto Inc Writing instrument
US2877501A (en) * 1952-12-24 1959-03-17 Fiberfil Corp Glass-reinforced thermoplastic injection molding compound and injection-molding process employing it
US2892217A (en) * 1954-08-20 1959-06-30 Luboshez Sergius N Ferris Process for bending plastic sheet material
US2911949A (en) * 1955-01-10 1959-11-10 Parker Pen Co Writing instrument

Also Published As

Publication number Publication date
CH405701A (en) 1966-01-15
NL256433A (en)
US3166618A (en) 1965-01-19

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