DE2245389C2 - Verfahren zur Herstellung von Polyfuranschaumstoffen - Google Patents
Verfahren zur Herstellung von PolyfuranschaumstoffenInfo
- Publication number
- DE2245389C2 DE2245389C2 DE2245389A DE2245389A DE2245389C2 DE 2245389 C2 DE2245389 C2 DE 2245389C2 DE 2245389 A DE2245389 A DE 2245389A DE 2245389 A DE2245389 A DE 2245389A DE 2245389 C2 DE2245389 C2 DE 2245389C2
- Authority
- DE
- Germany
- Prior art keywords
- furfuryl alcohol
- foams
- percent
- acid
- weight
- 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
- 239000006260 foam Substances 0.000 title claims description 99
- 238000000034 method Methods 0.000 title claims description 18
- 229920000414 polyfuran Polymers 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 claims description 233
- 239000000203 mixture Substances 0.000 claims description 47
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 27
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 19
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 6
- 150000007513 acids Chemical class 0.000 claims description 5
- 150000001298 alcohols Chemical class 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 239000011541 reaction mixture Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 description 40
- 239000003054 catalyst Substances 0.000 description 39
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 23
- 235000011007 phosphoric acid Nutrition 0.000 description 19
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 18
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 17
- 229920001296 polysiloxane Polymers 0.000 description 17
- 229930040373 Paraformaldehyde Natural products 0.000 description 16
- 229920002866 paraformaldehyde Polymers 0.000 description 16
- 238000003756 stirring Methods 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 230000002378 acidificating effect Effects 0.000 description 9
- 230000005484 gravity Effects 0.000 description 9
- 229960003390 magnesium sulfate Drugs 0.000 description 9
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 9
- 235000019341 magnesium sulphate Nutrition 0.000 description 9
- 239000004604 Blowing Agent Substances 0.000 description 8
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 8
- 239000001294 propane Substances 0.000 description 8
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 239000005995 Aluminium silicate Substances 0.000 description 5
- 239000004793 Polystyrene Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 235000012211 aluminium silicate Nutrition 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 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 5
- 239000010703 silicon Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 description 4
- YDHWWBZFRZWVHO-UHFFFAOYSA-N [hydroxy(phosphonooxy)phosphoryl] phosphono hydrogen phosphate Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(=O)OP(O)(O)=O YDHWWBZFRZWVHO-UHFFFAOYSA-N 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000011417 postcuring Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- -1 15 percent by weight Chemical compound 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- 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
- 108010053481 Antifreeze Proteins Proteins 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000004872 foam stabilizing agent Substances 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229940076230 magnesium sulfate monohydrate Drugs 0.000 description 1
- LFCFXZHKDRJMNS-UHFFFAOYSA-L magnesium;sulfate;hydrate Chemical group O.[Mg+2].[O-]S([O-])(=O)=O LFCFXZHKDRJMNS-UHFFFAOYSA-L 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/02—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
-
- 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
- C08G16/00—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00
- C08G16/02—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes
- C08G16/025—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with heterocyclic organic compounds
- C08G16/0256—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with heterocyclic organic compounds containing oxygen in the ring
- C08G16/0262—Furfuryl alcohol
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/36—Furfuryl alcohol
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polyethers (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Fats And Perfumes (AREA)
- External Artificial Organs (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4303371A GB1408873A (en) | 1971-09-15 | 1971-09-15 | Process of preparing polyfuran foams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2245389A1 DE2245389A1 (de) | 1973-03-22 |
| DE2245389C2 true DE2245389C2 (de) | 1982-11-18 |
Family
ID=10427039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2245389A Expired DE2245389C2 (de) | 1971-09-15 | 1972-09-15 | Verfahren zur Herstellung von Polyfuranschaumstoffen |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS56453B2 (enExample) |
| AR (1) | AR195564A1 (enExample) |
| AU (1) | AU471914B2 (enExample) |
| BE (1) | BE788888A (enExample) |
| BR (1) | BR7206431D0 (enExample) |
| CA (1) | CA995398A (enExample) |
| DE (1) | DE2245389C2 (enExample) |
| ES (1) | ES406677A1 (enExample) |
| FR (1) | FR2152956B1 (enExample) |
| GB (1) | GB1408873A (enExample) |
| IL (1) | IL40360A (enExample) |
| IT (1) | IT968329B (enExample) |
| LU (1) | LU66101A1 (enExample) |
| NL (1) | NL7212271A (enExample) |
| NO (1) | NO142528C (enExample) |
| SU (1) | SU508216A3 (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA786049B (en) * | 1977-10-26 | 1980-09-24 | W Cromer | Molded bodies based on furan resins in compact or foamed form,process for their production and their use |
| DE3412104A1 (de) * | 1984-03-31 | 1985-10-10 | Rütgerswerke AG, 6000 Frankfurt | Bindemittel auf basis furfurylalkohol, verfahren zu ihrer herstellung und verwendung |
| JP5658884B2 (ja) | 2010-02-01 | 2015-01-28 | 旭有機材工業株式会社 | 球状フルフリルアルコール樹脂粒子の製造方法及びそれによって得られた球状フルフリルアルコール樹脂粒子並びにそれを用いて得られる球状炭素粒子及び球状活性炭粒子 |
| JP5752451B2 (ja) * | 2011-03-17 | 2015-07-22 | 旭有機材工業株式会社 | 球状フルフリルアルコール樹脂粒子の製造方法 |
| ITTO20110656A1 (it) * | 2011-07-21 | 2013-01-22 | Silvachimica S R L | Composizione per la fabbricazione di un materiale espanso a base di tannini, materiale espanso da essa ottenibile, e relativo procedimento di fabbricazione. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3390107A (en) * | 1965-06-24 | 1968-06-25 | Internat Pipe & Ceramics Corp | Process for preparing a cellular furan resin and product obtained therefrom |
-
1971
- 1971-09-15 GB GB4303371A patent/GB1408873A/en not_active Expired
-
1972
- 1972-08-31 AR AR243856A patent/AR195564A1/es active
- 1972-09-08 NL NL7212271A patent/NL7212271A/xx not_active Application Discontinuation
- 1972-09-11 IT IT69876/72A patent/IT968329B/it active
- 1972-09-12 AU AU46555/72A patent/AU471914B2/en not_active Expired
- 1972-09-14 JP JP9182272A patent/JPS56453B2/ja not_active Expired
- 1972-09-14 IL IL40360A patent/IL40360A/en unknown
- 1972-09-14 SU SU1828277A patent/SU508216A3/ru active
- 1972-09-14 ES ES406677A patent/ES406677A1/es not_active Expired
- 1972-09-14 FR FR7232570A patent/FR2152956B1/fr not_active Expired
- 1972-09-14 NO NO723273A patent/NO142528C/no unknown
- 1972-09-15 BE BE788888D patent/BE788888A/nl unknown
- 1972-09-15 BR BR006431/72A patent/BR7206431D0/pt unknown
- 1972-09-15 CA CA151,842A patent/CA995398A/en not_active Expired
- 1972-09-15 LU LU66101A patent/LU66101A1/xx unknown
- 1972-09-15 DE DE2245389A patent/DE2245389C2/de not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| NICHTS-ERMITTELT |
Also Published As
| Publication number | Publication date |
|---|---|
| IL40360A (en) | 1976-03-31 |
| BE788888A (nl) | 1973-03-15 |
| BR7206431D0 (pt) | 1973-08-30 |
| NL7212271A (enExample) | 1973-03-19 |
| FR2152956B1 (enExample) | 1978-09-08 |
| GB1408873A (en) | 1975-10-08 |
| NO142528C (no) | 1980-09-03 |
| AR195564A1 (es) | 1973-10-23 |
| ES406677A1 (es) | 1975-10-16 |
| IT968329B (it) | 1974-03-20 |
| SU508216A3 (ru) | 1976-03-25 |
| AU471914B2 (en) | 1976-05-06 |
| JPS56453B2 (enExample) | 1981-01-08 |
| LU66101A1 (enExample) | 1973-01-17 |
| AU4655572A (en) | 1974-03-21 |
| IL40360A0 (en) | 1972-11-28 |
| DE2245389A1 (de) | 1973-03-22 |
| NO142528B (no) | 1980-05-27 |
| CA995398A (en) | 1976-08-17 |
| JPS4838362A (enExample) | 1973-06-06 |
| FR2152956A1 (enExample) | 1973-04-27 |
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