BE1011816A4 - Support pour impression, ecriture authentifiable par la chaleur et infalsifiable par agent chimique. - Google Patents
Support pour impression, ecriture authentifiable par la chaleur et infalsifiable par agent chimique. Download PDFInfo
- Publication number
- BE1011816A4 BE1011816A4 BE8800982A BE8800982A BE1011816A4 BE 1011816 A4 BE1011816 A4 BE 1011816A4 BE 8800982 A BE8800982 A BE 8800982A BE 8800982 A BE8800982 A BE 8800982A BE 1011816 A4 BE1011816 A4 BE 1011816A4
- Authority
- BE
- Belgium
- Prior art keywords
- support
- salt
- cobalt
- paper
- coloring
- Prior art date
Links
- 239000013043 chemical agent Substances 0.000 title abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 22
- 238000004040 coloring Methods 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 150000001868 cobalt Chemical class 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 claims description 8
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 5
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 5
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 3
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 229940044175 cobalt sulfate Drugs 0.000 claims description 2
- 229910000361 cobalt sulfate Inorganic materials 0.000 claims description 2
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 claims description 2
- FJDJVBXSSLDNJB-LNTINUHCSA-N cobalt;(z)-4-hydroxypent-3-en-2-one Chemical compound [Co].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FJDJVBXSSLDNJB-LNTINUHCSA-N 0.000 claims description 2
- 239000002274 desiccant Substances 0.000 claims description 2
- 229940011182 cobalt acetate Drugs 0.000 claims 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 claims 1
- 239000000976 ink Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000007844 bleaching agent Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- -1 transition metal salt Chemical class 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- GFHNAMRJFCEERV-UHFFFAOYSA-L cobalt chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Co+2] GFHNAMRJFCEERV-UHFFFAOYSA-L 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- ZBYYWKJVSFHYJL-UHFFFAOYSA-L cobalt(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Co+2].CC([O-])=O.CC([O-])=O ZBYYWKJVSFHYJL-UHFFFAOYSA-L 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/48—Elements suited for physical verification, e.g. by irradiation
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
Landscapes
- Paper (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR878712243A FR2620146B1 (fr) | 1987-09-03 | 1987-09-03 | Moyen, papier et document de securite contre la falsification par agent chimique et la contrefacon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE1011816A4 true BE1011816A4 (fr) | 2000-02-01 |
Family
ID=9354600
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE8800982A BE1011816A4 (fr) | 1987-09-03 | 1988-08-30 | Support pour impression, ecriture authentifiable par la chaleur et infalsifiable par agent chimique. |
| BE9100085A BE1011817A4 (fr) | 1987-09-03 | 1991-01-30 | Support pour impression, ecriture authentifiable par la chaleur et infalsifiable par agent chimique. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE9100085A BE1011817A4 (fr) | 1987-09-03 | 1991-01-30 | Support pour impression, ecriture authentifiable par la chaleur et infalsifiable par agent chimique. |
Country Status (9)
| Country | Link |
|---|---|
| BE (2) | BE1011816A4 (enrdf_load_stackoverflow) |
| CH (2) | CH679411A5 (enrdf_load_stackoverflow) |
| DE (1) | DE3829002C3 (enrdf_load_stackoverflow) |
| DK (2) | DK487888A (enrdf_load_stackoverflow) |
| ES (1) | ES2008020A6 (enrdf_load_stackoverflow) |
| FR (3) | FR2620146B1 (enrdf_load_stackoverflow) |
| GB (2) | GB2209304B (enrdf_load_stackoverflow) |
| IT (1) | IT1226420B (enrdf_load_stackoverflow) |
| NL (2) | NL191211C (enrdf_load_stackoverflow) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1024874A (en) * | 1963-10-04 | 1966-04-06 | Birmingham Small Arms Co Ltd | Improvements in or relating to rotary piston internal combustion engines |
| FR2639970B1 (fr) * | 1988-12-07 | 1991-09-20 | Aussedat Rey | Papier de securite infalsifiable, non fluorescent et document obtenu |
| GB2274428B (en) * | 1993-01-20 | 1996-08-21 | Portals | Security threads |
| RU2108421C1 (ru) * | 1996-08-13 | 1998-04-10 | Войсковая часть 33825 | Бумага, защищенная от подделки и несанкционированного производства |
| RU2108422C1 (ru) * | 1996-12-20 | 1998-04-10 | Войсковая часть 33825 | Термочувствительный состав для защиты бумаги от подделки |
| DE19833746A1 (de) * | 1998-07-27 | 2000-02-03 | Joergen Brosow | Sicherheitspapier und Verfahren zur Prüfung der Echtheit darauf aufgezeichneter Urkunden |
| RU2153910C1 (ru) * | 1999-07-26 | 2000-08-10 | Малафеев Иван Степанович | Способ проведения лотерей |
| RU2161057C1 (ru) * | 2000-04-04 | 2000-12-27 | Малафеев Иван Степанович | Способ проведения мгновенных лотерей |
| RU2229547C1 (ru) * | 2003-04-29 | 2004-05-27 | Научно-исследовательский институт Гознака - Государственное предприятие | Способ изготовления бактерицидной бумаги с химической защитой и бумага с антимикробными свойствами |
| FR2943074B1 (fr) * | 2009-03-13 | 2011-05-20 | Arjowiggins Security | Substrat marquable au laser et procede de fabrication associe |
| CN103730071B (zh) * | 2013-12-30 | 2017-05-03 | 深圳市华星光电技术有限公司 | Oled面板及其制作方法与封装效果的检测方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE42260C (de) * | 1900-01-01 | A. ZEISS in Berlin W., Charlottenstr. 68 | Herstellung von Sicherheitspapier | |
| US1804978A (en) * | 1926-03-01 | 1931-05-12 | Genoese John | Safety paper |
| US2005105A (en) * | 1930-06-23 | 1935-06-18 | Milton C Johnson Company | Safety paper |
| FR1509715A (fr) * | 1966-02-04 | 1968-01-12 | Inveresk Paper Company Ltd | Papier de sécurité |
| DE2909731A1 (de) * | 1978-03-15 | 1979-09-20 | Oesterr Nationalbank | Papier, verfahren zur pruefung von papieren und vorrichtung zur durchfuehrung des pruefverfahrens |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE109201C (enrdf_load_stackoverflow) * | ||||
| DE660599C (de) * | 1934-02-08 | 1938-05-31 | Felix Schoeller & Bausch | Verfahren zur Herstellung von Sicherheitspapier |
| DE1228972B (de) * | 1959-06-06 | 1966-11-17 | Dr Karlheinz Koenig | Echtheitskennzeichnung von Wertpapieren |
| FR2365656A1 (fr) * | 1976-05-25 | 1978-04-21 | Arjomari Prioux | Papier de securite |
| FR2402739A2 (fr) * | 1976-05-25 | 1979-04-06 | Arjomari Prioux | Papier de securite |
| FR2399505A1 (fr) * | 1976-05-25 | 1979-03-02 | Arjomari Prioux | Papier de securite |
| FR2406027A1 (fr) * | 1977-10-14 | 1979-05-11 | Voiron Papeteries | Papier reagissant a la falsification par agents chimiques et son procede de fabrication |
| GB1565243A (en) * | 1977-12-02 | 1980-04-16 | Emi Ltd | Recording data in eye-visible and machine readable magnetic form |
| JPS5787396A (en) * | 1980-11-18 | 1982-05-31 | Sadao Nishi | Chemical agent for marking paper money |
| NO158550C (no) * | 1986-03-26 | 1988-09-28 | Niels A Andersen | Anvendelse av et stoff for paavisning av kopiering av dokumentet. |
| FR2797895B1 (fr) * | 1999-09-01 | 2001-11-09 | Mathieu Yno S A | Brosse cylindrique autolavante pour balayeuses ou autres vehicules |
-
1987
- 1987-09-03 FR FR878712243A patent/FR2620146B1/fr not_active Expired - Fee Related
-
1988
- 1988-08-26 DE DE3829002A patent/DE3829002C3/de not_active Expired - Lifetime
- 1988-08-30 IT IT8821782A patent/IT1226420B/it active
- 1988-08-30 BE BE8800982A patent/BE1011816A4/fr not_active IP Right Cessation
- 1988-09-02 GB GB8820751A patent/GB2209304B/en not_active Expired - Fee Related
- 1988-09-02 CH CH498/91A patent/CH679411A5/fr not_active IP Right Cessation
- 1988-09-02 NL NL8802167A patent/NL191211C/xx not_active IP Right Cessation
- 1988-09-02 DK DK487888A patent/DK487888A/da not_active Application Discontinuation
- 1988-09-02 CH CH3291/88A patent/CH677241A5/fr not_active IP Right Cessation
- 1988-09-02 ES ES8802711A patent/ES2008020A6/es not_active Expired
-
1989
- 1989-02-24 FR FR898902382A patent/FR2643661B1/fr not_active Expired - Lifetime
-
1990
- 1990-12-11 FR FR909015510A patent/FR2654446B1/fr not_active Expired - Fee Related
-
1991
- 1991-01-30 BE BE9100085A patent/BE1011817A4/fr not_active IP Right Cessation
- 1991-02-19 DK DK028391A patent/DK28391D0/da not_active Application Discontinuation
- 1991-02-20 GB GB9102451A patent/GB2240511B/en not_active Expired - Fee Related
- 1991-03-08 NL NL9100419A patent/NL9100419A/nl not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE42260C (de) * | 1900-01-01 | A. ZEISS in Berlin W., Charlottenstr. 68 | Herstellung von Sicherheitspapier | |
| US1804978A (en) * | 1926-03-01 | 1931-05-12 | Genoese John | Safety paper |
| US2005105A (en) * | 1930-06-23 | 1935-06-18 | Milton C Johnson Company | Safety paper |
| FR1509715A (fr) * | 1966-02-04 | 1968-01-12 | Inveresk Paper Company Ltd | Papier de sécurité |
| DE2909731A1 (de) * | 1978-03-15 | 1979-09-20 | Oesterr Nationalbank | Papier, verfahren zur pruefung von papieren und vorrichtung zur durchfuehrung des pruefverfahrens |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2620146B1 (fr) | 1991-10-04 |
| FR2654446A1 (fr) | 1991-05-17 |
| IT1226420B (it) | 1991-01-15 |
| DE3829002C3 (de) | 1997-09-04 |
| NL191211C (nl) | 1995-03-16 |
| FR2643661A1 (fr) | 1990-08-31 |
| FR2643661B1 (fr) | 1991-05-10 |
| FR2620146A1 (fr) | 1989-03-10 |
| FR2654446B1 (fr) | 1992-10-16 |
| ES2008020A6 (es) | 1989-07-01 |
| IT8821782A0 (it) | 1988-08-30 |
| CH679411A5 (enrdf_load_stackoverflow) | 1992-02-14 |
| NL9100419A (nl) | 1991-06-03 |
| GB2240511B (en) | 1992-05-13 |
| GB8820751D0 (en) | 1988-10-05 |
| GB9102451D0 (en) | 1991-03-20 |
| NL191211B (nl) | 1994-10-17 |
| DK487888D0 (da) | 1988-09-02 |
| DK28391A (da) | 1991-02-19 |
| DE3829002A1 (de) | 1989-03-16 |
| NL8802167A (nl) | 1989-04-03 |
| GB2240511A (en) | 1991-08-07 |
| BE1011817A4 (fr) | 2000-02-01 |
| DK28391D0 (da) | 1991-02-19 |
| CH677241A5 (enrdf_load_stackoverflow) | 1991-04-30 |
| DK487888A (da) | 1989-03-04 |
| DE3829002C2 (de) | 1995-01-05 |
| GB2209304A (en) | 1989-05-10 |
| GB2209304B (en) | 1992-05-13 |
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| FR2580303A1 (fr) | Agent et papier de securite contre la falsification par agent chimique, et son procede de fabrication | |
| FR2694772A1 (fr) | Feuille infalsifiable par agent chimique et document de sécurité obtenu. | |
| JP2004232123A (ja) | 遮光紙 | |
| FR2568191A1 (fr) | Procede pour proteger un document contre la fraude. | |
| FR2981955A1 (fr) | Papier de securite infalsifiable aux agents oxydo-reducteurs |
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| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Effective date: 20070831 |