GB1561545A - Method of making flexible plates and plates made thereby - Google Patents
Method of making flexible plates and plates made thereby Download PDFInfo
- Publication number
- GB1561545A GB1561545A GB46227/76A GB4622776A GB1561545A GB 1561545 A GB1561545 A GB 1561545A GB 46227/76 A GB46227/76 A GB 46227/76A GB 4622776 A GB4622776 A GB 4622776A GB 1561545 A GB1561545 A GB 1561545A
- Authority
- GB
- United Kingdom
- Prior art keywords
- printing plate
- image
- toner
- coating
- silicate
- 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 claims description 9
- 238000000034 method Methods 0.000 claims description 54
- 238000000576 coating method Methods 0.000 claims description 48
- 239000011248 coating agent Substances 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 44
- 239000000243 solution Substances 0.000 claims description 44
- 238000007639 printing Methods 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims description 30
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 26
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 17
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 14
- 230000002209 hydrophobic effect Effects 0.000 claims description 14
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 14
- 239000004115 Sodium Silicate Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 12
- 239000011651 chromium Substances 0.000 claims description 12
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 12
- 229920000728 polyester Polymers 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 10
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 9
- -1 hydrogen ions Chemical class 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 6
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 229920000620 organic polymer Polymers 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- 239000004111 Potassium silicate Substances 0.000 claims description 4
- 230000001464 adherent effect Effects 0.000 claims description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims description 4
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- KIEOKOFEPABQKJ-UHFFFAOYSA-N sodium dichromate Chemical compound [Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KIEOKOFEPABQKJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011550 stock solution Substances 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 3
- 150000001845 chromium compounds Chemical class 0.000 claims description 3
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 claims description 3
- 239000001117 sulphuric acid Substances 0.000 claims description 3
- 235000011149 sulphuric acid Nutrition 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 2
- 239000000276 potassium ferrocyanide Substances 0.000 claims description 2
- XOGGUFAVLNCTRS-UHFFFAOYSA-N tetrapotassium;iron(2+);hexacyanide Chemical compound [K+].[K+].[K+].[K+].[Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] XOGGUFAVLNCTRS-UHFFFAOYSA-N 0.000 claims description 2
- 230000037303 wrinkles Effects 0.000 claims description 2
- 239000000976 ink Substances 0.000 description 12
- 239000004215 Carbon black (E152) Substances 0.000 description 11
- 229930195733 hydrocarbon Natural products 0.000 description 11
- 150000002430 hydrocarbons Chemical class 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 8
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 8
- 238000007654 immersion Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 229920000180 alkyd Polymers 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 6
- 230000000873 masking effect Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- SVEIXENKLWYGIZ-UHFFFAOYSA-J aluminum;sodium;tetrahydroxide Chemical class [OH-].[OH-].[OH-].[OH-].[Na+].[Al+3] SVEIXENKLWYGIZ-UHFFFAOYSA-J 0.000 description 4
- 229910021538 borax Inorganic materials 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 4
- 238000007645 offset printing Methods 0.000 description 4
- 239000004328 sodium tetraborate Substances 0.000 description 4
- 235000010339 sodium tetraborate Nutrition 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000009877 rendering Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- UKUVVAMSXXBMRX-UHFFFAOYSA-N 2,4,5-trithia-1,3-diarsabicyclo[1.1.1]pentane Chemical compound S1[As]2S[As]1S2 UKUVVAMSXXBMRX-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 235000019485 Safflower oil Nutrition 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 229940052288 arsenic trisulfide Drugs 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920005990 polystyrene resin Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 235000005713 safflower oil Nutrition 0.000 description 2
- 239000003813 safflower oil Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- CNPVJWYWYZMPDS-UHFFFAOYSA-N 2-methyldecane Chemical compound CCCCCCCCC(C)C CNPVJWYWYZMPDS-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- GLPMHULIKFGNIJ-UHFFFAOYSA-N cadmium(2+);dioxido(dioxo)chromium Chemical class [Cd+2].[O-][Cr]([O-])(=O)=O GLPMHULIKFGNIJ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229940117975 chromium trioxide Drugs 0.000 description 1
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229920000592 inorganic polymer Polymers 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G13/00—Electrographic processes using a charge pattern
- G03G13/26—Electrographic processes using a charge pattern for the production of printing plates for non-xerographic printing processes
- G03G13/28—Planographic printing plates
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/08—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
- G03G5/082—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic and not being incorporated in a bonding material, e.g. vacuum deposited
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Printing Plates And Materials Therefor (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63259075A | 1975-11-17 | 1975-11-17 | |
| AU10425/76A AU500655B2 (en) | 1976-01-20 | 1976-01-20 | Preparation of lithographic printing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1561545A true GB1561545A (en) | 1980-02-20 |
Family
ID=25614220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB46227/76A Expired GB1561545A (en) | 1975-11-17 | 1976-11-05 | Method of making flexible plates and plates made thereby |
Country Status (14)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4255508A (en) * | 1977-12-27 | 1981-03-10 | Coulter Systems Corporation | Flexible metal printing cylinder having a coating of crystalline photoconductive material |
| US4263387A (en) * | 1978-03-16 | 1981-04-21 | Coulter Systems Corporation | Lithographic printing plate and process for making same |
| AU527029B2 (en) * | 1978-12-26 | 1983-02-10 | Coulter Systems Corporation | Printing plate for lithography |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE541668A (enrdf_load_stackoverflow) * | 1955-08-30 | |||
| US3001872A (en) * | 1957-03-18 | 1961-09-26 | Xerox Corp | Preparing planographic plates and solution therefor |
| US2988988A (en) * | 1957-03-18 | 1961-06-20 | Haloid Xerox Inc | Method of etching and dampening planographic printing plates and fountain solution therefor |
| BE577547A (enrdf_load_stackoverflow) * | 1958-04-10 | |||
| US3272121A (en) * | 1963-02-14 | 1966-09-13 | Plastic Coating Corp | Lithographic printing plate prepared by photoelectrostatic reproduction, a method for its production and a method for lithographic printing |
| US3607255A (en) * | 1968-01-22 | 1971-09-21 | Crown Zellerbach Corp | Surfacing nonimage areas of lithographic master with hydrophilic desensitizing composition |
| DE1772073B2 (de) * | 1968-03-27 | 1974-06-06 | K.K. Ricoh, Tokio | Verfahren zur Herstellung einer Flachdruckplatte |
| IL42446A (en) * | 1972-06-08 | 1977-01-31 | Coulter Information Systems | Electro-photographic film and method of making same |
| LU68937A1 (enrdf_load_stackoverflow) * | 1973-01-12 | 1975-08-20 |
-
1976
- 1976-11-01 SE SE7612135A patent/SE430546B/xx unknown
- 1976-11-03 DK DK497876A patent/DK497876A/da not_active Application Discontinuation
- 1976-11-03 IL IL50833A patent/IL50833A/xx unknown
- 1976-11-05 AT AT0824676A patent/AT368644B/de not_active IP Right Cessation
- 1976-11-05 GB GB46227/76A patent/GB1561545A/en not_active Expired
- 1976-11-08 LU LU76149A patent/LU76149A1/xx unknown
- 1976-11-12 IT IT52170/76A patent/IT1066512B/it active
- 1976-11-15 NL NL7612686A patent/NL7612686A/xx not_active Application Discontinuation
- 1976-11-15 FR FR7634295A patent/FR2331820A1/fr active Granted
- 1976-11-16 JP JP51136974A patent/JPS5278504A/ja active Pending
- 1976-11-16 DE DE2652252A patent/DE2652252C2/de not_active Expired
- 1976-11-17 DD DD7600195827A patent/DD127741A5/xx unknown
- 1976-11-17 MX MX167040A patent/MX143806A/es unknown
- 1976-11-17 CH CH1445476A patent/CH615626A5/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IL50833A (en) | 1979-05-31 |
| CH615626A5 (en) | 1980-02-15 |
| DE2652252C2 (de) | 1982-07-08 |
| IL50833A0 (en) | 1977-01-31 |
| FR2331820B1 (enrdf_load_stackoverflow) | 1982-04-16 |
| FR2331820A1 (fr) | 1977-06-10 |
| NL7612686A (nl) | 1977-05-20 |
| LU76149A1 (enrdf_load_stackoverflow) | 1978-07-10 |
| DD127741A5 (de) | 1977-10-12 |
| JPS5278504A (en) | 1977-07-01 |
| ATA824676A (de) | 1982-02-15 |
| MX143806A (es) | 1981-07-20 |
| DE2652252A1 (de) | 1977-05-18 |
| DK497876A (da) | 1977-05-18 |
| SE430546B (sv) | 1983-11-21 |
| AT368644B (de) | 1982-10-25 |
| SE7612135L (sv) | 1977-05-18 |
| IT1066512B (it) | 1985-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |