DE2550739A1 - Bindemittel fuer die holzverleimung - Google Patents
Bindemittel fuer die holzverleimungInfo
- Publication number
- DE2550739A1 DE2550739A1 DE19752550739 DE2550739A DE2550739A1 DE 2550739 A1 DE2550739 A1 DE 2550739A1 DE 19752550739 DE19752550739 DE 19752550739 DE 2550739 A DE2550739 A DE 2550739A DE 2550739 A1 DE2550739 A1 DE 2550739A1
- Authority
- DE
- Germany
- Prior art keywords
- formaldehyde
- urea
- parts
- glue
- melamine
- 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- Withdrawn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
- 239000002023 wood Substances 0.000 title claims description 17
- 238000004026 adhesive bonding Methods 0.000 title claims description 10
- 239000011230 binding agent Substances 0.000 title description 29
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 203
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 75
- 229920005989 resin Polymers 0.000 claims description 57
- 239000011347 resin Substances 0.000 claims description 57
- 239000000243 solution Substances 0.000 claims description 41
- 239000004202 carbamide Substances 0.000 claims description 38
- 229920000877 Melamine resin Polymers 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 229920003180 amino resin Polymers 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- QQOWHRYOXYEMTL-UHFFFAOYSA-N triazin-4-amine Chemical class N=C1C=CN=NN1 QQOWHRYOXYEMTL-UHFFFAOYSA-N 0.000 claims description 5
- 239000007859 condensation product Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 150000002989 phenols Chemical class 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 229960004279 formaldehyde Drugs 0.000 description 68
- 235000019256 formaldehyde Nutrition 0.000 description 65
- 239000003292 glue Substances 0.000 description 52
- 239000000463 material Substances 0.000 description 22
- 239000000203 mixture Substances 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- 229920001807 Urea-formaldehyde Polymers 0.000 description 14
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 12
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 11
- 238000003825 pressing Methods 0.000 description 11
- 238000003860 storage Methods 0.000 description 11
- 239000011093 chipboard Substances 0.000 description 10
- 238000009833 condensation Methods 0.000 description 9
- 230000005494 condensation Effects 0.000 description 9
- 230000002378 acidificating effect Effects 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 5
- HANVTCGOAROXMV-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.NC1=NC(N)=NC(N)=N1 HANVTCGOAROXMV-UHFFFAOYSA-N 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- 206010042674 Swelling Diseases 0.000 description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000004640 Melamine resin Substances 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000004840 adhesive resin Substances 0.000 description 3
- 229920006223 adhesive resin Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000011630 iodine Substances 0.000 description 3
- 229910052740 iodine Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011120 plywood Substances 0.000 description 3
- 238000006068 polycondensation reaction Methods 0.000 description 3
- 239000004848 polyfunctional curative Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004890 Hydrophobing Agent Substances 0.000 description 2
- 241000294754 Macroptilium atropurpureum Species 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 241000218657 Picea Species 0.000 description 2
- 238000001069 Raman spectroscopy Methods 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- -1 methylol compounds Chemical class 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- 230000004580 weight loss Effects 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
- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VGGLHLAESQEWCR-UHFFFAOYSA-N N-(hydroxymethyl)urea Chemical compound NC(=O)NCO VGGLHLAESQEWCR-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000001237 Raman spectrum Methods 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- LDKDGDIWEUUXSH-UHFFFAOYSA-N Thymophthalein Chemical compound C1=C(O)C(C(C)C)=CC(C2(C3=CC=CC=C3C(=O)O2)C=2C(=CC(O)=C(C(C)C)C=2)C)=C1C LDKDGDIWEUUXSH-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 150000003857 carboxamides Chemical class 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical class O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 1
- DXRFSTNITSDOKK-UHFFFAOYSA-N formaldehyde;sulfurous acid Chemical compound O=C.OS(O)=O DXRFSTNITSDOKK-UHFFFAOYSA-N 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08G12/34—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds and acyclic or carbocyclic compounds
- C08G12/36—Ureas; Thioureas
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic and acyclic or carbocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752550739 DE2550739A1 (de) | 1975-11-12 | 1975-11-12 | Bindemittel fuer die holzverleimung |
| IT28898/76A IT1070931B (it) | 1975-11-12 | 1976-10-29 | Legante per l'incollaggio del legno |
| NO763813A NO763813L (enrdf_load_stackoverflow) | 1975-11-12 | 1976-11-09 | |
| SE7612473A SE7612473L (sv) | 1975-11-12 | 1976-11-09 | Bindemedel for limning av tre |
| NL7612550A NL7612550A (nl) | 1975-11-12 | 1976-11-11 | Bindmiddel voor het lijmen van hout. |
| FR7634144A FR2331576A1 (fr) | 1975-11-12 | 1976-11-12 | Liant pour l'encollage du bois |
| JP51135499A JPS5262396A (en) | 1975-11-12 | 1976-11-12 | Preparation of binder for wood adhesion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752550739 DE2550739A1 (de) | 1975-11-12 | 1975-11-12 | Bindemittel fuer die holzverleimung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2550739A1 true DE2550739A1 (de) | 1977-05-26 |
Family
ID=5961525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752550739 Withdrawn DE2550739A1 (de) | 1975-11-12 | 1975-11-12 | Bindemittel fuer die holzverleimung |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5262396A (enrdf_load_stackoverflow) |
| DE (1) | DE2550739A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2331576A1 (enrdf_load_stackoverflow) |
| IT (1) | IT1070931B (enrdf_load_stackoverflow) |
| NL (1) | NL7612550A (enrdf_load_stackoverflow) |
| NO (1) | NO763813L (enrdf_load_stackoverflow) |
| SE (1) | SE7612473L (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4458049A (en) * | 1981-07-01 | 1984-07-03 | Basf Aktiengesellschaft | Preparation of cocondensates which produce weather-resistant bonding |
| AT395014B (de) * | 1989-12-15 | 1992-08-25 | Krems Chemie Gmbh | Verfahren zur beschleunigten aushaertung von aminoplastleimen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1546045A (fr) * | 1966-11-26 | 1968-11-15 | Basf Ag | Apprêts résistants au chlore et procédé pour l'apprêtage des textiles, résistants au lavage |
| CH1820368D (enrdf_load_stackoverflow) * | 1968-12-16 | |||
| BE795631A (fr) * | 1972-02-19 | 1973-08-20 | Basf Ag | Liants aminoplastes pour materiaux a base de bois |
-
1975
- 1975-11-12 DE DE19752550739 patent/DE2550739A1/de not_active Withdrawn
-
1976
- 1976-10-29 IT IT28898/76A patent/IT1070931B/it active
- 1976-11-09 SE SE7612473A patent/SE7612473L/xx unknown
- 1976-11-09 NO NO763813A patent/NO763813L/no unknown
- 1976-11-11 NL NL7612550A patent/NL7612550A/xx not_active Application Discontinuation
- 1976-11-12 JP JP51135499A patent/JPS5262396A/ja active Pending
- 1976-11-12 FR FR7634144A patent/FR2331576A1/fr not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4458049A (en) * | 1981-07-01 | 1984-07-03 | Basf Aktiengesellschaft | Preparation of cocondensates which produce weather-resistant bonding |
| AT395014B (de) * | 1989-12-15 | 1992-08-25 | Krems Chemie Gmbh | Verfahren zur beschleunigten aushaertung von aminoplastleimen |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2331576A1 (fr) | 1977-06-10 |
| NL7612550A (nl) | 1977-05-16 |
| JPS5262396A (en) | 1977-05-23 |
| NO763813L (enrdf_load_stackoverflow) | 1977-05-13 |
| SE7612473L (sv) | 1977-05-13 |
| IT1070931B (it) | 1985-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |