BE532089A - - Google Patents
Info
- Publication number
- BE532089A BE532089A BE532089DA BE532089A BE 532089 A BE532089 A BE 532089A BE 532089D A BE532089D A BE 532089DA BE 532089 A BE532089 A BE 532089A
- Authority
- BE
- Belgium
- Prior art keywords
- condensation
- urazine
- formaldehyde
- solution
- resin
- Prior art date
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 156
- 239000004744 fabric Substances 0.000 claims description 79
- 239000000243 solution Substances 0.000 claims description 71
- 229920005989 resin Polymers 0.000 claims description 60
- 239000011347 resin Substances 0.000 claims description 60
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical compound O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 claims description 55
- 239000007864 aqueous solution Substances 0.000 claims description 38
- 239000007859 condensation product Substances 0.000 claims description 29
- 238000009833 condensation Methods 0.000 claims description 27
- 230000005494 condensation Effects 0.000 claims description 27
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 19
- 238000010992 reflux Methods 0.000 claims description 17
- 239000003377 acid catalyst Substances 0.000 claims description 14
- 229910021529 ammonia Inorganic materials 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 239000004753 textile Substances 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000011282 treatment Methods 0.000 claims description 10
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 230000002378 acidificating effect Effects 0.000 claims description 6
- 239000002657 fibrous material Substances 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 5
- 239000012736 aqueous medium Substances 0.000 claims description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 4
- 125000004434 sulfur atom Chemical group 0.000 claims description 4
- 239000013067 intermediate product Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002609 medium Substances 0.000 claims description 3
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000004627 regenerated cellulose Substances 0.000 claims description 2
- 239000012260 resinous material Substances 0.000 claims 2
- 239000012670 alkaline solution Substances 0.000 claims 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims 1
- 239000012262 resinous product Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 44
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 36
- 239000000543 intermediate Substances 0.000 description 24
- 229920000297 Rayon Polymers 0.000 description 20
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 17
- 238000005406 washing Methods 0.000 description 16
- 238000012360 testing method Methods 0.000 description 15
- 239000007787 solid Substances 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 230000007935 neutral effect Effects 0.000 description 12
- 235000011121 sodium hydroxide Nutrition 0.000 description 12
- 229920000742 Cotton Polymers 0.000 description 10
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- 239000005708 Sodium hypochlorite Substances 0.000 description 8
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 8
- 239000004202 carbamide Substances 0.000 description 8
- 239000000460 chlorine Substances 0.000 description 8
- 229910052801 chlorine Inorganic materials 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 239000006012 monoammonium phosphate Substances 0.000 description 8
- 235000019837 monoammonium phosphate Nutrition 0.000 description 8
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 8
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 229920001807 Urea-formaldehyde Polymers 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- 238000004049 embossing Methods 0.000 description 6
- 239000008098 formaldehyde solution Substances 0.000 description 6
- 239000002759 woven fabric Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- -1 monothio p-urazine Chemical compound 0.000 description 5
- 239000002964 rayon Substances 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- 239000000344 soap Substances 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 4
- 235000011167 hydrochloric acid Nutrition 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 235000002906 tartaric acid Nutrition 0.000 description 3
- 229940086542 triethylamine Drugs 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 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 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 2
- 229910001863 barium hydroxide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229940015043 glyoxal Drugs 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000007530 organic bases Chemical class 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 229920002866 paraformaldehyde Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000011975 tartaric acid Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- OVFJHQBWUUTRFT-UHFFFAOYSA-N 1,2,3,4-tetrahydrotetrazine Chemical compound C1=CNNNN1 OVFJHQBWUUTRFT-UHFFFAOYSA-N 0.000 description 1
- HHSAQSIIYVKIOL-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dithione Chemical compound S=C1NNC(=S)NN1 HHSAQSIIYVKIOL-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-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
- 239000004902 Softening Agent Substances 0.000 description 1
- XVLBLMDYCURIGM-UHFFFAOYSA-M [Cl-].C(CCCCCCCCCCCCCCCCC)OC1=[N+](C=CC=C1)C Chemical compound [Cl-].C(CCCCCCCCCCCCCCCCC)OC1=[N+](C=CC=C1)C XVLBLMDYCURIGM-UHFFFAOYSA-M 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- VQKFNUFAXTZWDK-UHFFFAOYSA-N alpha-methylfuran Natural products CC1=CC=CO1 VQKFNUFAXTZWDK-UHFFFAOYSA-N 0.000 description 1
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 description 1
- 239000012431 aqueous reaction media Substances 0.000 description 1
- NGPGDYLVALNKEG-UHFFFAOYSA-N azanium;azane;2,3,4-trihydroxy-4-oxobutanoate Chemical compound [NH4+].[NH4+].[O-]C(=O)C(O)C(O)C([O-])=O NGPGDYLVALNKEG-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001246 colloidal dispersion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 150000002169 ethanolamines Chemical class 0.000 description 1
- KIWBPDUYBMNFTB-UHFFFAOYSA-M ethyl sulfate Chemical compound CCOS([O-])(=O)=O KIWBPDUYBMNFTB-UHFFFAOYSA-M 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229960004011 methenamine Drugs 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- DSKJXGYAJJHDOE-UHFFFAOYSA-N methylideneurea Chemical compound NC(=O)N=C DSKJXGYAJJHDOE-UHFFFAOYSA-N 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 229920006297 regenerated protein fiber Polymers 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000008149 soap solution Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 238000009988 textile finishing Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE532089A true BE532089A (enrdf_load_stackoverflow) |
Family
ID=164239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE532089D BE532089A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE532089A (enrdf_load_stackoverflow) |
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0
- BE BE532089D patent/BE532089A/fr unknown