DE3339174C3 - Kalthärtbares Bindemittel auf Polyurethan-Basis für Gießereizwecke - Google Patents
Kalthärtbares Bindemittel auf Polyurethan-Basis für GießereizweckeInfo
- Publication number
- DE3339174C3 DE3339174C3 DE19833339174 DE3339174A DE3339174C3 DE 3339174 C3 DE3339174 C3 DE 3339174C3 DE 19833339174 DE19833339174 DE 19833339174 DE 3339174 A DE3339174 A DE 3339174A DE 3339174 C3 DE3339174 C3 DE 3339174C3
- Authority
- DE
- Germany
- Prior art keywords
- binder
- sand
- component
- foundry
- polyurethane
- 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 - Fee Related
Links
- 239000011230 binding agent Substances 0.000 title claims description 49
- 239000004814 polyurethane Substances 0.000 title claims description 26
- 229920002635 polyurethane Polymers 0.000 title claims description 26
- 239000000306 component Substances 0.000 claims description 38
- 238000000465 moulding Methods 0.000 claims description 35
- 239000000203 mixture Substances 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 239000003054 catalyst Substances 0.000 claims description 20
- 239000005056 polyisocyanate Substances 0.000 claims description 20
- 229920001228 polyisocyanate Polymers 0.000 claims description 20
- 229920005862 polyol Polymers 0.000 claims description 19
- 239000004576 sand Substances 0.000 claims description 14
- -1 phenolic polyol Chemical class 0.000 claims description 13
- 150000003077 polyols Chemical class 0.000 claims description 13
- 239000002904 solvent Substances 0.000 claims description 13
- 239000004215 Carbon black (E152) Substances 0.000 claims description 7
- 239000006004 Quartz sand Substances 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000002798 polar solvent Substances 0.000 claims description 7
- 239000007795 chemical reaction product Substances 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims 1
- 229910052609 olivine Inorganic materials 0.000 claims 1
- 239000010450 olivine Substances 0.000 claims 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 description 16
- 239000004305 biphenyl Substances 0.000 description 10
- 238000005266 casting Methods 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 description 8
- 238000005452 bending Methods 0.000 description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 8
- 239000012778 molding material Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 7
- 235000010290 biphenyl Nutrition 0.000 description 7
- 125000006267 biphenyl group Chemical group 0.000 description 7
- 229910000077 silane Inorganic materials 0.000 description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 6
- 229920005903 polyol mixture Polymers 0.000 description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-N benzene-dicarboxylic acid Natural products OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 150000003512 tertiary amines Chemical class 0.000 description 4
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000003570 air Substances 0.000 description 3
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 150000002989 phenols Chemical class 0.000 description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- ZDZYGYFHTPFREM-UHFFFAOYSA-N 3-[3-aminopropyl(dimethoxy)silyl]oxypropan-1-amine Chemical compound NCCC[Si](OC)(OC)OCCCN ZDZYGYFHTPFREM-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Natural products OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000012454 non-polar solvent Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 description 1
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 1
- FPZWZCWUIYYYBU-UHFFFAOYSA-N 2-(2-ethoxyethoxy)ethyl acetate Chemical compound CCOCCOCCOC(C)=O FPZWZCWUIYYYBU-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- PLXVUZMJQPEWPH-UHFFFAOYSA-N 4,4,6-trimethylcyclohex-2-en-1-one Chemical compound CC1CC(C)(C)C=CC1=O PLXVUZMJQPEWPH-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- QORUGOXNWQUALA-UHFFFAOYSA-N N=C=O.N=C=O.N=C=O.C1=CC=C(C(C2=CC=CC=C2)C2=CC=CC=C2)C=C1 Chemical compound N=C=O.N=C=O.N=C=O.C1=CC=C(C(C2=CC=CC=C2)C2=CC=CC=C2)C=C1 QORUGOXNWQUALA-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 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
- 150000001408 amides Chemical class 0.000 description 1
- IFVTZJHWGZSXFD-UHFFFAOYSA-N biphenylene Chemical group C1=CC=C2C3=CC=CC=C3C2=C1 IFVTZJHWGZSXFD-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical compound C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
- B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- B22C1/2273—Polyurethanes; Polyisocyanates
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3215—Polyhydroxy compounds containing aromatic groups or benzoquinone groups
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
- Polyurethanes Or Polyureas (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833339174 DE3339174C3 (de) | 1983-10-28 | 1983-10-28 | Kalthärtbares Bindemittel auf Polyurethan-Basis für Gießereizwecke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833339174 DE3339174C3 (de) | 1983-10-28 | 1983-10-28 | Kalthärtbares Bindemittel auf Polyurethan-Basis für Gießereizwecke |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE3339174A1 DE3339174A1 (de) | 1985-05-15 |
| DE3339174C2 DE3339174C2 (enrdf_load_stackoverflow) | 1987-07-16 |
| DE3339174C3 true DE3339174C3 (de) | 1995-06-01 |
Family
ID=6212983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19833339174 Expired - Fee Related DE3339174C3 (de) | 1983-10-28 | 1983-10-28 | Kalthärtbares Bindemittel auf Polyurethan-Basis für Gießereizwecke |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3339174C3 (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043775C (zh) * | 1993-06-18 | 1999-06-23 | 汉克尔股份两合公司 | 异氰酸酯/多元醇－铸模树脂 |
| EP0703933A1 (de) * | 1993-06-18 | 1996-04-03 | Henkel Kommanditgesellschaft auf Aktien | Offenporige formteile für den baustoffbereich |
| US5688857A (en) * | 1996-04-10 | 1997-11-18 | Ashland Inc. | Polyurethane-forming cold-box binders and their uses |
| DE19925115A1 (de) * | 1999-06-01 | 2000-12-07 | Huettenes Albertus | Bindemittelsystem für Formstoff-Mischungen zur Herstellung von Formen und Kernen |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3429848A (en) * | 1966-08-01 | 1969-02-25 | Ashland Oil Inc | Foundry binder composition comprising benzylic ether resin,polyisocyanate,and tertiary amine |
| BE790459A (fr) * | 1971-10-26 | 1973-04-24 | Hooker Chemical Corp | Liants pour agregats de fonderie |
| US3933727A (en) * | 1972-09-26 | 1976-01-20 | Ab Bofors | Method of producing polyurethane-based cores and moulds according to the so-called cold-box procedure |
| US3905934A (en) * | 1974-05-23 | 1975-09-16 | Ashland Oil Inc | Phenolic resin-polyisocyanate binder systems containing dialkyl phthalate solvents |
| SE7407505L (sv) * | 1974-06-07 | 1975-12-08 | Bofors Ab | Forfarande for framstellning av formkroppar av polyuretanbundna kornformiga material. |
| GB1601938A (en) * | 1977-07-21 | 1981-11-04 | Fordath Ltd | Foundry binders |
| DE2855391A1 (de) * | 1978-12-21 | 1980-06-26 | Woellner Werke | Kalthaertendes bindemittel fuer teilchenfoermige feststoffe, insbesondere giessereisand |
| US4293480A (en) * | 1979-05-11 | 1981-10-06 | Ashland Oil, Inc. | Urethane binder compositions for no-bake and cold box foundry application utilizing isocyanato-urethane polymers |
| DE2923840C2 (de) * | 1979-06-13 | 1984-03-01 | Hüttenes-Albertus Chemische Werke GmbH, 4000 Düsseldorf | Verwendung eines monomeren mehrwertigen Phenols zur Herstellung eines Bindemittels für Gießerei-Formstoffmischungen |
-
1983
- 1983-10-28 DE DE19833339174 patent/DE3339174C3/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE3339174C2 (enrdf_load_stackoverflow) | 1987-07-16 |
| DE3339174A1 (de) | 1985-05-15 |
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