GB1240852A - An improved pencil and a process for the continuous production of such pencils - Google Patents
An improved pencil and a process for the continuous production of such pencilsInfo
- Publication number
- GB1240852A GB1240852A GB45223/68A GB4522368A GB1240852A GB 1240852 A GB1240852 A GB 1240852A GB 45223/68 A GB45223/68 A GB 45223/68A GB 4522368 A GB4522368 A GB 4522368A GB 1240852 A GB1240852 A GB 1240852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- styrene
- acrylonitrile
- sheath
- lead
- composition
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D13/00—Pencil-leads; Crayon compositions; Chalk compositions
-
- 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
- B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
-
- 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
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
- B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
- B43K19/16—Making non-propelling pencils
-
- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such 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
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
- B29K2105/043—Skinned foam
-
- 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
- B29L2031/7254—Pencils
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
1,240,852. Pencils. FARBENFABRIKEN BAYER A.G. 24 Sept., 1968 [4 Oct., 1967], No. 45223/68. Heading B6P. A pencil has a sheath comprising a foamed thermoplastic moulding composition, the foam having a density of from 0À3 to 0À7 g./c.c. The pencil may be formed by passing a lead through the inner nozzle of a reversal-type extruder whilst the outer nozzle is used to guide and form the surrounding, expandible thermoplastic composition. The lead may contain a thermoplastic composition as binder and may be formed in an extruder which directly applies the sheath as above. The foamed thermoplastic moulding composition may comprise polystyrene; copolymers of styrene with other vinyl or vinylidene monomers (e.g. acrylonitrile or methyl methacrylate); polymethyl methacrylate; polyvinyl chloride; polyvinyl chloride modified with monomeric or polymeric plasticizers; cellulose esters modified with plasticizers; rubber-modified polystyrenes with a styrene content of at least 50% by weight. In a preferred embodiment the moulding compositions comprise copolymer mixtures of polymers of acrylonitrile, butadiene and styrene (ABS-polymers). According to examples, the moulding composition may comprise (A) an elastomeric butadiene polymer with optionally copolymerized styrene, isoprene, acrylonitrile or a lower alkyl ester of acrylic acid or methacrylic acid, together with (B) polymerized styrene and acrylonitrile, the two monomer components being replaceable either wholly or in part by their alkyl derivatives or by methyl methacrylate. The binder for the lead may comprise (C) a graft polymer of ethylene/vinyl acetate copolymer and possibly also a grafted-on vinyl chloride together with (D) a polymer mixture as in (A) and (B) above. The foaming agents may be azodicarbonamide and sulphohydrazide-based agents. The lead may contain graphite. The moulding composition used for the sheath may contain anti-static agents and the finished sheath may be polished by immersion in a solvent, e.g. methyl ethyl ketone.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19671561767 DE1561767B1 (en) | 1967-10-04 | 1967-10-04 | Pen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1240852A true GB1240852A (en) | 1971-07-28 |
Family
ID=5677631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB45223/68A Expired GB1240852A (en) | 1967-10-04 | 1968-09-24 | An improved pencil and a process for the continuous production of such pencils |
Country Status (12)
Country | Link |
---|---|
US (1) | US3704071A (en) |
JP (1) | JPS4813368B1 (en) |
AT (1) | AT296467B (en) |
BE (1) | BE721839A (en) |
CH (1) | CH523791A (en) |
DE (1) | DE1561767B1 (en) |
DK (1) | DK131277B (en) |
FR (1) | FR1588294A (en) |
GB (1) | GB1240852A (en) |
NL (1) | NL6814263A (en) |
NO (1) | NO134060C (en) |
SE (1) | SE346086B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5244297A (en) * | 1991-03-19 | 1993-09-14 | Conte S.A. | Process for manufacturing pencil by tri-extrusion and the produced pencil having an intermediate protective casing |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2187552A1 (en) * | 1971-07-16 | 1974-01-18 | Hasbro Industries Inc | Extrudable pencil casing |
US3993408A (en) * | 1971-07-16 | 1976-11-23 | Hasbro Industries, Inc. | Pencil comprising a marking core and a porous resin sheath |
US3983195A (en) * | 1971-07-16 | 1976-09-28 | Hasbro Industries, Inc. | Pencil sheath compositions, method for making pencils |
CA1005200A (en) * | 1971-07-16 | 1977-02-08 | Hasbro Industries | Pencil sheath compositions, method and apparatus for making pencils, and the resulting product |
US3936519A (en) * | 1974-04-24 | 1976-02-03 | Milton Crystal | Method of extruding foamed plastic sheathed pencils |
JPS527227Y2 (en) * | 1974-09-06 | 1977-02-16 | ||
US4413921A (en) * | 1978-09-05 | 1983-11-08 | Revlon, Inc. | Cosmetic pencil having a sharpenable polyethylene casing |
US5360281A (en) * | 1990-11-15 | 1994-11-01 | Revlon Consumer Products Corporation | Cosmetic pencil and method for making the same |
FR2674179B1 (en) * | 1991-03-19 | 1994-11-10 | Conte | PROCESS OF MANUFACTURING BY TRI-EXTRUSION OF A PENCIL TO BE WRITTEN OR TO COLORED AND PENCIL TO BE WRITTEN OR TO COLORED COMPRISING AN INTERMEDIATE SHELL FOR PROTECTING THE MINE. |
US5531947A (en) * | 1992-09-15 | 1996-07-02 | Bellaform Extrusionstechnik Gmbh | Process and installation for the manufacture of pencils |
US5735622A (en) * | 1995-12-14 | 1998-04-07 | Pentech International Inc. | Writing instrument with a compressible friction coating and method of making |
CH691046A5 (en) * | 1996-06-05 | 2001-04-12 | Veka Ag | Thermoplastic material for use in baths and whirlpool tubs, cars, wall coverings and pay phone hoods consists at least partly of poly (vinyl chloride) foam |
AU8502298A (en) * | 1997-07-29 | 1999-02-22 | John Erlandson | Pencils containing reclaimed rubber |
EP0936082A1 (en) | 1998-02-13 | 1999-08-18 | Hudson ICS | Pencil blanks and methods for making same |
US6062753A (en) * | 1998-08-17 | 2000-05-16 | Pentech International Inc. | Writing instrument with enhanced tactile control and gripping comfort and method of making same |
US20070092701A1 (en) * | 2005-10-11 | 2007-04-26 | Jeng Jong P | Building material having a fluorocarbon based capstock layer and process of manufacturing same with less dimensional distortion |
GB9916461D0 (en) * | 1999-07-14 | 1999-09-15 | Remarkable Pencils Limited | Apparatus and method for extruding pencils |
FR2802148B1 (en) | 1999-12-13 | 2003-01-24 | Conte | PROCESS FOR THE MANUFACTURE BY TRI-EXTRUSION OF A PENCIL TO BE WRITING OR TO BE COLORED AND THE PENCIL TO BE WRITING OR TO BE COLORED COMPRISING A PROTECTIVE INTERMEDIATE LAYER |
JP2001224428A (en) * | 2000-02-14 | 2001-08-21 | Tokiwa Corp | Pencil type cosmetic |
AT412627B (en) * | 2001-04-18 | 2005-05-25 | Vladimir Kralj | WRITING HELP |
US6505984B2 (en) * | 2001-04-27 | 2003-01-14 | Binney & Smith Inc. | Crayon with eraser |
US6565275B2 (en) | 2001-04-27 | 2003-05-20 | Binney & Smith Inc. | Marker with eraser |
US6547465B1 (en) | 2002-01-22 | 2003-04-15 | Shoot The Moon Products Ii, Llc | Pencil with exposable eraser |
US6752941B2 (en) * | 2002-03-14 | 2004-06-22 | Certainteed Corporation | Additives for special effect appearances in plastic parts |
US6935800B2 (en) * | 2002-10-09 | 2005-08-30 | Cosmolab, Inc. | Marking instrument and cosmetic pencil |
US20040126556A1 (en) * | 2002-12-27 | 2004-07-01 | Nowak Michael T. | Grip element |
EP2390294A1 (en) * | 2010-05-26 | 2011-11-30 | Université Catholique De Louvain | Pencils, method of preparation and use |
US8998519B2 (en) | 2013-05-13 | 2015-04-07 | Hemant Patel | Process and formulation for a plastic pencil |
DE102013020666B4 (en) | 2013-11-29 | 2017-09-14 | Staedtler Mars Gmbh & Co. Kg | Lead fines for writing, drawing and / or painting equipment and methods of making the same |
FR3052705B1 (en) * | 2016-06-21 | 2018-07-13 | Conte | PENCIL TO WRITE OR COLOR |
WO2018036847A1 (en) | 2016-08-26 | 2018-03-01 | A.W. Faber-Castell Cosmetics Gmbh | Pencil comprising an integrally injection-moulded layered casing |
DE102016115872B4 (en) * | 2016-08-26 | 2018-03-15 | A.W. Faber-Castell Cosmetics Gmbh | Pin with integral injection-molded layer sleeve |
US11718124B2 (en) * | 2018-09-07 | 2023-08-08 | SOCIéTé BIC | Body for a writing, tracing, drawing or coloring pencil |
MX2021006356A (en) * | 2018-12-18 | 2021-08-11 | SOCIéTé BIC | Lead casing for pencil, and pencil thereof for writing, drawing, marking, plotting, and coloring. |
WO2020127203A1 (en) | 2018-12-18 | 2020-06-25 | Societe Bic | Lead casing for pencil, and pencil thereof for writing, drawing, marking, plotting, and coloring |
CN113165416B (en) * | 2018-12-18 | 2023-05-16 | 法国比克公司 | Pencil lead sleeve and pencil comprising pencil lead sleeve for writing, drawing, marking, drawing and coloring |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE346739A (en) * | 1926-11-13 | |||
BE346738A (en) * | 1926-11-13 | 1900-01-01 | ||
BE353865A (en) * | 1927-08-31 | |||
US1937104A (en) * | 1932-03-03 | 1933-11-28 | Joseph Dixon Crucible Co | Method of making pencils |
US2408398A (en) * | 1943-07-24 | 1946-10-01 | Theodore L Johnson | Multiple extrusion |
DE940492C (en) * | 1945-09-01 | 1956-03-22 | Zareh Dr Lorenian | Method and device for wrapping writing leads with a plastic mass |
NL80121C (en) * | 1948-06-28 | 1900-01-01 | ||
FR969976A (en) * | 1948-07-01 | 1950-12-28 | Making a pencil with a lead and synthetic plastics | |
DE917771C (en) * | 1951-12-29 | 1954-09-09 | Max Schmidt | pencil |
GB794400A (en) * | 1955-08-01 | 1958-04-30 | Us Rubber Co | Improvements in rubber-and-resin compositions |
US2960967A (en) * | 1955-08-10 | 1960-11-22 | Howard M Bauserman | Extruded plastic lead pencils |
DE1244398B (en) * | 1963-07-11 | 1967-07-13 | Bayer Ag | Antistatic thermoplastic molding compounds |
DE1761201A1 (en) * | 1967-04-18 | 1970-08-13 | Bernard Bartner | A housing and a core that is firmly connected to it, e.g. a pencil, and the process for its manufacture |
-
1967
- 1967-10-04 DE DE19671561767 patent/DE1561767B1/en active Pending
-
1968
- 1968-08-28 US US755812A patent/US3704071A/en not_active Expired - Lifetime
- 1968-09-24 GB GB45223/68A patent/GB1240852A/en not_active Expired
- 1968-09-24 NO NO683769A patent/NO134060C/no unknown
- 1968-09-24 AT AT930068A patent/AT296467B/en not_active IP Right Cessation
- 1968-10-03 SE SE13381/68A patent/SE346086B/xx unknown
- 1968-10-03 DK DK478968AA patent/DK131277B/en unknown
- 1968-10-03 CH CH1479768A patent/CH523791A/en not_active IP Right Cessation
- 1968-10-04 JP JP43071949A patent/JPS4813368B1/ja active Pending
- 1968-10-04 BE BE721839D patent/BE721839A/xx unknown
- 1968-10-04 FR FR1588294D patent/FR1588294A/fr not_active Expired
- 1968-10-04 NL NL6814263A patent/NL6814263A/xx not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5244297A (en) * | 1991-03-19 | 1993-09-14 | Conte S.A. | Process for manufacturing pencil by tri-extrusion and the produced pencil having an intermediate protective casing |
Also Published As
Publication number | Publication date |
---|---|
FR1588294A (en) | 1970-04-10 |
NO134060C (en) | 1976-08-11 |
BE721839A (en) | 1969-03-14 |
NL6814263A (en) | 1969-04-09 |
CH523791A (en) | 1972-06-15 |
DE1561767B1 (en) | 1972-07-06 |
DK131277C (en) | 1975-11-24 |
DK131277B (en) | 1975-06-23 |
JPS4813368B1 (en) | 1973-04-26 |
SE346086B (en) | 1972-06-26 |
AT296467B (en) | 1972-02-10 |
NO134060B (en) | 1976-05-03 |
US3704071A (en) | 1972-11-28 |
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