JPS58135831A - ヒドロキシジフエニル類の製造方法 - Google Patents
ヒドロキシジフエニル類の製造方法Info
- Publication number
- JPS58135831A JPS58135831A JP58014692A JP1469283A JPS58135831A JP S58135831 A JPS58135831 A JP S58135831A JP 58014692 A JP58014692 A JP 58014692A JP 1469283 A JP1469283 A JP 1469283A JP S58135831 A JPS58135831 A JP S58135831A
- Authority
- JP
- Japan
- Prior art keywords
- alkali metal
- reaction
- mixture
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 50
- 238000006243 chemical reaction Methods 0.000 claims description 39
- 239000000203 mixture Substances 0.000 claims description 39
- 239000002253 acid Substances 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 24
- 238000006277 sulfonation reaction Methods 0.000 claims description 21
- 239000011541 reaction mixture Substances 0.000 claims description 19
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- 239000003513 alkali Substances 0.000 claims description 9
- 229910052783 alkali metal Inorganic materials 0.000 claims description 9
- -1 alkali metal salt Chemical class 0.000 claims description 8
- 238000006386 neutralization reaction Methods 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 239000002585 base Substances 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 3
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 150000003457 sulfones Chemical class 0.000 claims description 3
- 229910021505 gold(III) hydroxide Inorganic materials 0.000 claims description 2
- WDZVNNYQBQRJRX-UHFFFAOYSA-K gold(iii) hydroxide Chemical compound O[Au](O)O WDZVNNYQBQRJRX-UHFFFAOYSA-K 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims 1
- 150000008107 benzenesulfonic acids Chemical class 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000011049 pearl Substances 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 22
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 18
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 150000003460 sulfonic acids Chemical class 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 239000004305 biphenyl Substances 0.000 description 7
- CGEXUOTXYSGBLV-UHFFFAOYSA-N phenyl benzenesulfonate Chemical class C=1C=CC=CC=1S(=O)(=O)OC1=CC=CC=C1 CGEXUOTXYSGBLV-UHFFFAOYSA-N 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000000543 intermediate Substances 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 235000010290 biphenyl Nutrition 0.000 description 4
- 125000006267 biphenyl group Chemical group 0.000 description 4
- YXVFYQXJAXKLAK-UHFFFAOYSA-N biphenyl-4-ol Chemical group C1=CC(O)=CC=C1C1=CC=CC=C1 YXVFYQXJAXKLAK-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000013067 intermediate product Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- LLEMOWNGBBNAJR-UHFFFAOYSA-N biphenyl-2-ol Chemical compound OC1=CC=CC=C1C1=CC=CC=C1 LLEMOWNGBBNAJR-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- 150000008054 sulfonate salts Chemical class 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 235000011054 acetic acid Nutrition 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 description 2
- 150000004692 metal hydroxides Chemical class 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005185 salting out Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
- 241000243251 Hydra Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 241001474791 Proboscis Species 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241000270666 Testudines Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- CXJVMJWCNFOERL-UHFFFAOYSA-N benzenesulfonylsulfonylbenzene Chemical compound C=1C=CC=CC=1S(=O)(=O)S(=O)(=O)C1=CC=CC=C1 CXJVMJWCNFOERL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical class C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 description 1
- JGMYOSNETXAAMT-UHFFFAOYSA-L dipotassium;benzenesulfonate Chemical compound [K+].[K+].[O-]S(=O)(=O)C1=CC=CC=C1.[O-]S(=O)(=O)C1=CC=CC=C1 JGMYOSNETXAAMT-UHFFFAOYSA-L 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 125000004464 hydroxyphenyl group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 1
- 229910001463 metal phosphate Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000010292 orthophenyl phenol Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- NJFLMBDOPGVWLJ-UHFFFAOYSA-N phosphoric acid dihydrochloride Chemical compound Cl.Cl.OP(O)(O)=O NJFLMBDOPGVWLJ-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
- C07C37/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of SO3H groups or a derivative thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823204079 DE3204079A1 (de) | 1982-02-06 | 1982-02-06 | Verfahren zur herstellung von hydroxydiphenylen |
| DE3204079.2 | 1982-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58135831A true JPS58135831A (ja) | 1983-08-12 |
| JPS6338334B2 JPS6338334B2 (enExample) | 1988-07-29 |
Family
ID=6154956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58014692A Granted JPS58135831A (ja) | 1982-02-06 | 1983-02-02 | ヒドロキシジフエニル類の製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4467123A (enExample) |
| EP (1) | EP0085883B1 (enExample) |
| JP (1) | JPS58135831A (enExample) |
| DE (2) | DE3204079A1 (enExample) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546207A (en) * | 1983-02-28 | 1985-10-08 | General Electric Company | Process for preparing anhydrous salts of dihydroxyaromatic compounds |
| JPS63119432A (ja) * | 1986-11-07 | 1988-05-24 | Kureha Chem Ind Co Ltd | ４，４′−ジヒドロキシビフエニルの製造方法 |
| DE3801943A1 (de) * | 1988-01-23 | 1989-07-27 | Basf Ag | Verfahren zur herstellung von 4,4'-dihydroxybiphenyl |
| DE3831712A1 (de) * | 1988-09-17 | 1990-03-22 | Basf Ag | Verfahren zur herstellung von 4,4"-dihydroxyterphenyl |
| DE3840618C1 (enExample) * | 1988-12-02 | 1990-03-15 | Bayer Ag, 5090 Leverkusen, De | |
| DE19624202A1 (de) * | 1996-06-18 | 1998-01-02 | Bayer Ag | Verfahren zur Herstellung von 4-Hydroxydiphenyl |
| DE10040165A1 (de) * | 2000-08-17 | 2002-02-28 | Bayer Ag | ortho-Phenylphenolat-Konzentrate |
| CN100497280C (zh) * | 2006-01-17 | 2009-06-10 | 沈阳化工研究院 | 一种对苯基苯酚的制备方法 |
| CN116730803A (zh) * | 2023-06-28 | 2023-09-12 | 锦州三丰科技有限公司 | 一种联苯二酚的制备方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4916417A (enExample) * | 1972-05-22 | 1974-02-13 | ||
| JPS5649329A (en) * | 1979-08-31 | 1981-05-02 | Buffalo Color Corp | Manufacture of 4*4**dihydroxydiphenyl |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB649945A (en) * | 1947-04-18 | 1951-02-07 | Ciba Ltd | Manufacture of oxy-compounds of the naphthalene series |
| FR1108177A (fr) * | 1953-07-09 | 1956-01-10 | Sterling Drug Inc | Procédé de production de bêta-naphtol |
| JPS5111618B2 (enExample) * | 1972-05-02 | 1976-04-13 | ||
| JPS582838B2 (ja) * | 1975-12-04 | 1983-01-18 | リソウカガクコウギヨウ カブシキガイシヤ | カンネツセイコウハンインサツヨウゲンシ |
| JPS5657728A (en) * | 1979-10-17 | 1981-05-20 | Hodogaya Chem Co Ltd | Preparation of 4,4'-dihydroxybiphenyl |
-
1982
- 1982-02-06 DE DE19823204079 patent/DE3204079A1/de not_active Withdrawn
-
1983
- 1983-01-20 US US06/459,738 patent/US4467123A/en not_active Expired - Fee Related
- 1983-01-25 DE DE8383100614T patent/DE3360174D1/de not_active Expired
- 1983-01-25 EP EP83100614A patent/EP0085883B1/de not_active Expired
- 1983-02-02 JP JP58014692A patent/JPS58135831A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4916417A (enExample) * | 1972-05-22 | 1974-02-13 | ||
| JPS5649329A (en) * | 1979-08-31 | 1981-05-02 | Buffalo Color Corp | Manufacture of 4*4**dihydroxydiphenyl |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3204079A1 (de) | 1983-08-18 |
| EP0085883B1 (de) | 1985-05-15 |
| US4467123A (en) | 1984-08-21 |
| JPS6338334B2 (enExample) | 1988-07-29 |
| DE3360174D1 (en) | 1985-06-20 |
| EP0085883A1 (de) | 1983-08-17 |
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