DE2164512C3 - Aufzeichnungsbogen und Verfahren zu seiner Herstellung - Google Patents
Aufzeichnungsbogen und Verfahren zu seiner HerstellungInfo
- Publication number
- DE2164512C3 DE2164512C3 DE2164512A DE2164512A DE2164512C3 DE 2164512 C3 DE2164512 C3 DE 2164512C3 DE 2164512 A DE2164512 A DE 2164512A DE 2164512 A DE2164512 A DE 2164512A DE 2164512 C3 DE2164512 C3 DE 2164512C3
- Authority
- DE
- Germany
- Prior art keywords
- parts
- color
- recording sheet
- recording
- phenol
- 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
- 238000004519 manufacturing process Methods 0.000 title description 5
- 238000000034 method Methods 0.000 title description 5
- 150000002989 phenols Chemical class 0.000 claims description 17
- -1 phenol compound Chemical class 0.000 claims description 8
- 230000002378 acidificating effect Effects 0.000 claims description 7
- 239000000975 dye Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 239000007787 solid Substances 0.000 description 10
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- YXVFYQXJAXKLAK-UHFFFAOYSA-N biphenyl-4-ol Chemical compound C1=CC(O)=CC=C1C1=CC=CC=C1 YXVFYQXJAXKLAK-UHFFFAOYSA-N 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 239000007900 aqueous suspension Substances 0.000 description 4
- 125000003710 aryl alkyl group Chemical group 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- UMGLBLXWFVODRF-UHFFFAOYSA-N formaldehyde;4-phenylphenol Chemical compound O=C.C1=CC(O)=CC=C1C1=CC=CC=C1 UMGLBLXWFVODRF-UHFFFAOYSA-N 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229920000126 latex Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- LIZLYZVAYZQVPG-UHFFFAOYSA-N (3-bromo-2-fluorophenyl)methanol Chemical compound OCC1=CC=CC(Br)=C1F LIZLYZVAYZQVPG-UHFFFAOYSA-N 0.000 description 2
- GJYCVCVHRSWLNY-UHFFFAOYSA-N 2-butylphenol Chemical compound CCCCC1=CC=CC=C1O GJYCVCVHRSWLNY-UHFFFAOYSA-N 0.000 description 2
- HJSPWKGEPDZNLK-UHFFFAOYSA-N 4-benzylphenol Chemical compound C1=CC(O)=CC=C1CC1=CC=CC=C1 HJSPWKGEPDZNLK-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- MVRPPTGLVPEMPI-UHFFFAOYSA-N 2-cyclohexylphenol Chemical compound OC1=CC=CC=C1C1CCCCC1 MVRPPTGLVPEMPI-UHFFFAOYSA-N 0.000 description 1
- DJRJYWNDMBCUSJ-UHFFFAOYSA-N 3,3-bis[4-(dibutylamino)phenyl]-2-benzofuran-1-one Chemical compound C1=CC(N(CCCC)CCCC)=CC=C1C1(C=2C=CC(=CC=2)N(CCCC)CCCC)C2=CC=CC=C2C(=O)O1 DJRJYWNDMBCUSJ-UHFFFAOYSA-N 0.000 description 1
- RXWRBTHAEPBNLL-UHFFFAOYSA-N 3,3-bis[4-(dipropylamino)phenyl]-2-benzofuran-1-one Chemical compound C1=CC(N(CCC)CCC)=CC=C1C1(C=2C=CC(=CC=2)N(CCC)CCC)C2=CC=CC=C2C(=O)O1 RXWRBTHAEPBNLL-UHFFFAOYSA-N 0.000 description 1
- OEIOKPQWHXSUCH-UHFFFAOYSA-N 3-amino-3h-2-benzofuran-1-one Chemical compound C1=CC=C2C(N)OC(=O)C2=C1 OEIOKPQWHXSUCH-UHFFFAOYSA-N 0.000 description 1
- GHZPDRVHYHFILK-UHFFFAOYSA-N 3-chloro-3h-2-benzofuran-1-one Chemical compound C1=CC=C2C(Cl)OC(=O)C2=C1 GHZPDRVHYHFILK-UHFFFAOYSA-N 0.000 description 1
- LAMUXTNQCICZQX-UHFFFAOYSA-N 3-chloropropan-1-ol Chemical compound OCCCCl LAMUXTNQCICZQX-UHFFFAOYSA-N 0.000 description 1
- ICVFJPSNAUMFCW-UHFFFAOYSA-N 4-Chloro-4'-biphenylol Chemical compound C1=CC(O)=CC=C1C1=CC=C(Cl)C=C1 ICVFJPSNAUMFCW-UHFFFAOYSA-N 0.000 description 1
- MGGVALXERJRIRO-UHFFFAOYSA-N 4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-2-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-1H-pyrazol-5-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2)O MGGVALXERJRIRO-UHFFFAOYSA-N 0.000 description 1
- NTDQQZYCCIDJRK-UHFFFAOYSA-N 4-octylphenol Chemical compound CCCCCCCCC1=CC=C(O)C=C1 NTDQQZYCCIDJRK-UHFFFAOYSA-N 0.000 description 1
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 description 1
- LZDOYVMSNJBLIM-UHFFFAOYSA-N 4-tert-butylphenol;formaldehyde Chemical compound O=C.CC(C)(C)C1=CC=C(O)C=C1 LZDOYVMSNJBLIM-UHFFFAOYSA-N 0.000 description 1
- JJTXQNPQIWNFFS-UHFFFAOYSA-N 6-amino-3,3-bis[4-(dimethylamino)phenyl]-2-benzofuran-1-one Chemical compound C1=CC(N(C)C)=CC=C1C1(C=2C=CC(=CC=2)N(C)C)C2=CC=C(N)C=C2C(=O)O1 JJTXQNPQIWNFFS-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- TZEACZDLHCBXBC-UHFFFAOYSA-N N-ethyl-N-fluoro-4-methylaniline Chemical compound C(C)N(C1=CC=C(C=C1)C)F TZEACZDLHCBXBC-UHFFFAOYSA-N 0.000 description 1
- YNPNZTXNASCQKK-UHFFFAOYSA-N Phenanthrene Natural products C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 1
- ZKURGBYDCVNWKH-UHFFFAOYSA-N [3,7-bis(dimethylamino)phenothiazin-10-yl]-phenylmethanone Chemical compound C12=CC=C(N(C)C)C=C2SC2=CC(N(C)C)=CC=C2N1C(=O)C1=CC=CC=C1 ZKURGBYDCVNWKH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000000981 basic dye Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- ZLSPCFYPYRYKNF-UHFFFAOYSA-N formaldehyde;4-octylphenol Chemical compound O=C.CCCCCCCCC1=CC=C(O)C=C1 ZLSPCFYPYRYKNF-UHFFFAOYSA-N 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229940107698 malachite green Drugs 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229940043267 rhodamine b Drugs 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/333—Colour developing components therefor, e.g. acidic compounds
- B41M5/3331—Macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/132—Chemical colour-forming components; Additives or binders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/132—Chemical colour-forming components; Additives or binders therefor
- B41M5/155—Colour-developing components, e.g. acidic compounds; Additives or binders therefor; Layers containing such colour-developing components, additives or binders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/333—Colour developing components therefor, e.g. acidic compounds
- B41M5/3333—Non-macromolecular compounds
- B41M5/3335—Compounds containing phenolic or carboxylic acid groups or metal salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Color Printing (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45127821A JPS4913449B1 (enrdf_load_stackoverflow) | 1970-12-28 | 1970-12-28 | |
| JP45126386A JPS4913457B1 (enrdf_load_stackoverflow) | 1970-12-29 | 1970-12-29 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2164512A1 DE2164512A1 (de) | 1972-07-27 |
| DE2164512B2 DE2164512B2 (de) | 1974-05-22 |
| DE2164512C3 true DE2164512C3 (de) | 1975-01-23 |
Family
ID=26462579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2164512A Expired DE2164512C3 (de) | 1970-12-28 | 1971-12-24 | Aufzeichnungsbogen und Verfahren zu seiner Herstellung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3816838A (enrdf_load_stackoverflow) |
| BE (1) | BE777296A (enrdf_load_stackoverflow) |
| CA (1) | CA937050A (enrdf_load_stackoverflow) |
| DE (1) | DE2164512C3 (enrdf_load_stackoverflow) |
| SE (1) | SE377780B (enrdf_load_stackoverflow) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2230178A5 (enrdf_load_stackoverflow) * | 1973-05-17 | 1974-12-13 | Ritzerfeld Gerhard | |
| GB1492834A (en) * | 1974-04-08 | 1977-11-23 | Canon Kk | Image recording member |
| US4046073A (en) * | 1976-01-28 | 1977-09-06 | International Business Machines Corporation | Ultrasonic transfer printing with multi-copy, color and low audible noise capability |
| US4046074A (en) * | 1976-02-02 | 1977-09-06 | International Business Machines Corporation | Non-impact printing system |
| DE2911798C2 (de) * | 1979-03-26 | 1983-08-18 | Pelikan Ag, 3000 Hannover | Anordnung zum Erzeugen hellfarbiger Markierungen auf einem dunkelfarbigen Untergrund für die Overhead-Projektion |
| EP0036117B1 (de) * | 1980-03-14 | 1986-02-05 | Spezial-Papiermaschinenfabrik August Alfred Krupp GmbH & Co | Druckempfindliches Aufzeichnungsmaterial |
| US5091359A (en) * | 1989-02-08 | 1992-02-25 | Kanzaki Paper Manufacturing Co., Ltd. | Heat-sensitive record material |
| US6372329B1 (en) | 1998-11-30 | 2002-04-16 | Arkwright, Incorporated | Ink-jet recording media having ink-receptive layers comprising modified poly(vinyl alcohols) |
| US6894708B2 (en) * | 2003-04-23 | 2005-05-17 | International Business Machines Corporation | Apparatus, system, and method for frictionally reacting thermal paper |
| CN104656373B (zh) * | 2015-01-08 | 2018-10-12 | 苏州瑞红电子化学品有限公司 | 一种用于玻璃钝化整流芯片工艺中不含光敏剂的光刻胶组合物及其应用 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2661998A (en) * | 1949-04-30 | 1953-12-08 | Rca Corp | Electric marking method, apparatus, and carrier for facsimile systems and the like |
| US3162763A (en) * | 1962-04-05 | 1964-12-22 | Dietzgen Co Eugene | Thermographic reproduction paper, method of making and method of using |
| GB1053935A (enrdf_load_stackoverflow) * | 1964-08-27 | 1900-01-01 | ||
| GB1135540A (en) * | 1966-06-01 | 1968-12-04 | Ncr Co | Temperature responsive record material |
| US3466184A (en) * | 1967-02-14 | 1969-09-09 | Ncr Co | Record sheet sensitized with phenolic polymeric material |
| US3466185A (en) * | 1967-03-21 | 1969-09-09 | Ncr Co | Process of a sensitizing paper with phenolic polymeric material |
| US3576660A (en) * | 1968-07-11 | 1971-04-27 | Ncr Co | Pressure-sensitive record sheet and coating composition |
-
1971
- 1971-12-22 SE SE7116459A patent/SE377780B/xx unknown
- 1971-12-22 US US00210885A patent/US3816838A/en not_active Expired - Lifetime
- 1971-12-24 DE DE2164512A patent/DE2164512C3/de not_active Expired
- 1971-12-27 BE BE777296A patent/BE777296A/xx unknown
- 1971-12-29 CA CA131205A patent/CA937050A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE777296A (fr) | 1972-04-17 |
| US3816838A (en) | 1974-06-11 |
| DE2164512A1 (de) | 1972-07-27 |
| DE2164512B2 (de) | 1974-05-22 |
| SE377780B (enrdf_load_stackoverflow) | 1975-07-28 |
| CA937050A (en) | 1973-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |