NO126779B - - Google Patents
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- Publication number
- NO126779B NO126779B NO404871A NO404871A NO126779B NO 126779 B NO126779 B NO 126779B NO 404871 A NO404871 A NO 404871A NO 404871 A NO404871 A NO 404871A NO 126779 B NO126779 B NO 126779B
- Authority
- NO
- Norway
- Prior art keywords
- phenol
- substance
- treatment
- wood
- ammonia
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 29
- -1 o-methylphenyl Chemical group 0.000 claims description 16
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 15
- 238000005809 transesterification reaction Methods 0.000 claims description 14
- 229910021529 ammonia Inorganic materials 0.000 claims description 10
- 239000007858 starting material Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 8
- 239000011541 reaction mixture Substances 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- 235000013877 carbamide Nutrition 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- CBOIHMRHGLHBPB-UHFFFAOYSA-N hydroxymethyl Chemical compound O[CH2] CBOIHMRHGLHBPB-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007795 chemical reaction product Substances 0.000 abstract description 3
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 6
- 239000002023 wood Substances 0.000 abstract 4
- 230000035515 penetration Effects 0.000 abstract 3
- 229920000877 Melamine resin Polymers 0.000 abstract 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract 2
- 238000005470 impregnation Methods 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 abstract 2
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 abstract 1
- 239000004640 Melamine resin Substances 0.000 abstract 1
- 229930040373 Paraformaldehyde Natural products 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 abstract 1
- 239000004312 hexamethylene tetramine Substances 0.000 abstract 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 abstract 1
- 229960004011 methenamine Drugs 0.000 abstract 1
- 229920002866 paraformaldehyde Polymers 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- 238000002203 pretreatment Methods 0.000 abstract 1
- 239000001119 stannous chloride Substances 0.000 abstract 1
- 235000011150 stannous chloride Nutrition 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 238000004381 surface treatment Methods 0.000 abstract 1
- 238000009489 vacuum treatment Methods 0.000 abstract 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 23
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 21
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 12
- 150000005676 cyclic carbonates Chemical class 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 8
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- HSRJKNPTNIJEKV-UHFFFAOYSA-N Guaifenesin Chemical compound COC1=CC=CC=C1OCC(O)CO HSRJKNPTNIJEKV-UHFFFAOYSA-N 0.000 description 5
- 239000012043 crude product Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 239000013067 intermediate product Substances 0.000 description 5
- 239000012452 mother liquor Substances 0.000 description 5
- 238000001953 recrystallisation Methods 0.000 description 5
- 235000019270 ammonium chloride Nutrition 0.000 description 4
- 229940112021 centrally acting muscle relaxants carbamic acid ester Drugs 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 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 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- JWDYCNIAQWPBHD-UHFFFAOYSA-N 1-(2-methylphenyl)glycerol Chemical compound CC1=CC=CC=C1OCC(O)CO JWDYCNIAQWPBHD-UHFFFAOYSA-N 0.000 description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 150000002314 glycerols Chemical class 0.000 description 2
- KRPAJLYSLFNDOA-UHFFFAOYSA-N mephenesin carbamate Chemical compound CC1=CC=CC=C1OCC(O)COC(N)=O KRPAJLYSLFNDOA-UHFFFAOYSA-N 0.000 description 2
- 229950006838 mephenesin carbamate Drugs 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- KJAMZCVTJDTESW-UHFFFAOYSA-N tiracizine Chemical compound C1CC2=CC=CC=C2N(C(=O)CN(C)C)C2=CC(NC(=O)OCC)=CC=C21 KJAMZCVTJDTESW-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical class CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 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
- 238000009835 boiling Methods 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229960003861 mephenesin Drugs 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000006501 nitrophenyl group Chemical group 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 125000000075 primary alcohol group Chemical group 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 125000003198 secondary alcohol group Chemical group 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000005346 substituted cycloalkyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0207—Pretreatment of wood before impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7014859A SE348965C (sv) | 1970-11-03 | 1970-11-03 | Forfarande for ytimpregnering av tre till bildning av ett ytskikt av treplast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO126779B true NO126779B (sv) | 1973-03-26 |
Family
ID=20299789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO404871A NO126779B (sv) | 1970-11-03 | 1971-11-02 |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS4944321B2 (sv) |
| AT (1) | AT311033B (sv) |
| AU (1) | AU475827B2 (sv) |
| BE (1) | BE774844A (sv) |
| CA (1) | CA974415A (sv) |
| CH (1) | CH565637A5 (sv) |
| FI (1) | FI53545C (sv) |
| FR (1) | FR2113481A5 (sv) |
| GB (1) | GB1374289A (sv) |
| IT (1) | IT939150B (sv) |
| NL (1) | NL158109B (sv) |
| NO (1) | NO126779B (sv) |
| SE (1) | SE348965C (sv) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3504898A1 (de) * | 1985-02-13 | 1986-08-14 | Rütgerswerke AG, 6000 Frankfurt | Verfahren zur verguetung von holz sowie verwendung des vergueteten holzes |
-
1970
- 1970-11-03 SE SE7014859A patent/SE348965C/sv unknown
-
1971
- 1971-10-29 CH CH1578871A patent/CH565637A5/xx not_active IP Right Cessation
- 1971-11-01 CA CA126,573A patent/CA974415A/en not_active Expired
- 1971-11-01 AU AU35206/71A patent/AU475827B2/en not_active Expired
- 1971-11-02 NO NO404871A patent/NO126779B/no unknown
- 1971-11-02 FR FR7139259A patent/FR2113481A5/fr not_active Expired
- 1971-11-02 FI FI312471A patent/FI53545C/fi active
- 1971-11-02 IT IT3065571A patent/IT939150B/it active
- 1971-11-02 AT AT944071A patent/AT311033B/de not_active IP Right Cessation
- 1971-11-03 NL NL7115163A patent/NL158109B/xx not_active IP Right Cessation
- 1971-11-03 BE BE774844A patent/BE774844A/xx unknown
- 1971-11-03 GB GB5104071A patent/GB1374289A/en not_active Expired
- 1971-11-04 JP JP8794171A patent/JPS4944321B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE348965C (sv) | 1977-04-25 |
| FR2113481A5 (sv) | 1972-06-23 |
| DE2154497A1 (de) | 1972-05-10 |
| SE348965B (sv) | 1972-09-18 |
| FI53545C (fi) | 1978-06-12 |
| AT311033B (de) | 1973-10-25 |
| IT939150B (it) | 1973-02-10 |
| NL158109B (nl) | 1978-10-16 |
| BE774844A (fr) | 1972-03-01 |
| AU475827B2 (en) | 1976-09-02 |
| FI53545B (sv) | 1978-02-28 |
| NL7115163A (sv) | 1972-05-05 |
| JPS4852904A (sv) | 1973-07-25 |
| JPS4944321B2 (sv) | 1974-11-27 |
| GB1374289A (en) | 1974-11-20 |
| DE2154497B2 (de) | 1976-07-08 |
| CA974415A (en) | 1975-09-16 |
| AU3520671A (en) | 1973-06-21 |
| CH565637A5 (sv) | 1975-08-29 |
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