DE2227575B2 - Verfahren zur Herstellung von Schreib- und Zeichenminen - Google Patents
Verfahren zur Herstellung von Schreib- und ZeichenminenInfo
- Publication number
- DE2227575B2 DE2227575B2 DE19722227575 DE2227575A DE2227575B2 DE 2227575 B2 DE2227575 B2 DE 2227575B2 DE 19722227575 DE19722227575 DE 19722227575 DE 2227575 A DE2227575 A DE 2227575A DE 2227575 B2 DE2227575 B2 DE 2227575B2
- Authority
- DE
- Germany
- Prior art keywords
- strand
- production
- carbonizable
- writing
- carbon
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 230000001590 oxidative effect Effects 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 238000004132 cross linking Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000007858 starting material Substances 0.000 claims description 6
- 238000004939 coking Methods 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000003763 carbonization Methods 0.000 claims description 4
- 238000005087 graphitization Methods 0.000 claims description 4
- 239000004071 soot Substances 0.000 claims description 3
- 238000010000 carbonizing Methods 0.000 claims 1
- 238000005520 cutting process Methods 0.000 claims 1
- 150000002894 organic compounds Chemical class 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920002239 polyacrylonitrile Polymers 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 3
- 239000012991 xanthate Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- LGECYHKACRVEKY-UHFFFAOYSA-L copper;azane;dihydroxide Chemical compound N.N.N.N.[OH-].[OH-].[Cu+2] LGECYHKACRVEKY-UHFFFAOYSA-L 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
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
- 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
- B43K19/18—Making pencil writing-cores
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Fibers (AREA)
- Carbon And Carbon Compounds (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722227575 DE2227575B2 (de) | 1972-06-07 | 1972-06-07 | Verfahren zur Herstellung von Schreib- und Zeichenminen |
| GB2540373A GB1405379A (en) | 1972-06-07 | 1973-05-29 | Method of making pencil leads for writing and drawing purposes |
| FR7320620A FR2187869B3 (enrdf_load_html_response) | 1972-06-07 | 1973-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722227575 DE2227575B2 (de) | 1972-06-07 | 1972-06-07 | Verfahren zur Herstellung von Schreib- und Zeichenminen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2227575A1 DE2227575A1 (de) | 1974-01-03 |
| DE2227575B2 true DE2227575B2 (de) | 1980-07-31 |
Family
ID=5846991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722227575 Withdrawn DE2227575B2 (de) | 1972-06-07 | 1972-06-07 | Verfahren zur Herstellung von Schreib- und Zeichenminen |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2227575B2 (enrdf_load_html_response) |
| FR (1) | FR2187869B3 (enrdf_load_html_response) |
| GB (1) | GB1405379A (enrdf_load_html_response) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3118503C2 (de) * | 1981-05-09 | 1985-12-12 | Fa. J.S. Staedtler, 8500 Nürnberg | Verfahren zur Herstellung von Schreib- oder Zeichenminen |
-
1972
- 1972-06-07 DE DE19722227575 patent/DE2227575B2/de not_active Withdrawn
-
1973
- 1973-05-29 GB GB2540373A patent/GB1405379A/en not_active Expired
- 1973-06-06 FR FR7320620A patent/FR2187869B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2187869B3 (enrdf_load_html_response) | 1976-05-28 |
| GB1405379A (en) | 1975-09-10 |
| FR2187869A1 (enrdf_load_html_response) | 1974-01-18 |
| DE2227575A1 (de) | 1974-01-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8239 | Disposal/non-payment of the annual fee |