JPS5943023A - 触媒としてダウソナイトを使用するポリエステルの解重合法 - Google Patents
触媒としてダウソナイトを使用するポリエステルの解重合法Info
- Publication number
- JPS5943023A JPS5943023A JP14064183A JP14064183A JPS5943023A JP S5943023 A JPS5943023 A JP S5943023A JP 14064183 A JP14064183 A JP 14064183A JP 14064183 A JP14064183 A JP 14064183A JP S5943023 A JPS5943023 A JP S5943023A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- polyester
- ethylene
- acid
- poly
- 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
- 238000000034 method Methods 0.000 title claims description 46
- 229920000728 polyester Polymers 0.000 title claims description 27
- 239000003054 catalyst Substances 0.000 title claims description 26
- 239000005977 Ethylene Substances 0.000 claims description 15
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 11
- 150000002678 macrocyclic compounds Chemical class 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 9
- XRHCAGNSDHCHFJ-UHFFFAOYSA-N Ethylene brassylate Chemical group O=C1CCCCCCCCCCCC(=O)OCCO1 XRHCAGNSDHCHFJ-UHFFFAOYSA-N 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910001647 dawsonite Inorganic materials 0.000 claims 1
- 238000010297 mechanical methods and process Methods 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 239000000047 product Substances 0.000 description 14
- -1 oxides Chemical class 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 125000001931 aliphatic group Chemical group 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 150000001991 dicarboxylic acids Chemical class 0.000 description 4
- 150000002009 diols Chemical class 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 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
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- 150000002596 lactones Chemical class 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- KZKRBWDDBIDNOI-UHFFFAOYSA-N 1,5-dioxacyclopentadecane-2,4-dione Chemical compound O=C1CC(=O)OCCCCCCCCCCO1 KZKRBWDDBIDNOI-UHFFFAOYSA-N 0.000 description 2
- LOKPJYNMYCVCRM-UHFFFAOYSA-N 16-Hexadecanolide Chemical compound O=C1CCCCCCCCCCCCCCCO1 LOKPJYNMYCVCRM-UHFFFAOYSA-N 0.000 description 2
- UGAGPNKCDRTDHP-UHFFFAOYSA-N 16-hydroxyhexadecanoic acid Chemical compound OCCCCCCCCCCCCCCCC(O)=O UGAGPNKCDRTDHP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BTZVDPWKGXMQFW-UHFFFAOYSA-N Pentadecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCC(O)=O BTZVDPWKGXMQFW-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002763 monocarboxylic acids Chemical class 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 238000006798 ring closing metathesis reaction Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- KWLADEGDFFZQFM-UHFFFAOYSA-N 1,4-dioxacyclododecane-5,12-dione Chemical compound O=C1CCCCCCC(=O)OCCO1 KWLADEGDFFZQFM-UHFFFAOYSA-N 0.000 description 1
- QABJRPWOBYCMBO-UHFFFAOYSA-N 1,4-dioxacyclotridecane-5,13-dione Chemical compound O=C1CCCCCCCC(=O)OCCO1 QABJRPWOBYCMBO-UHFFFAOYSA-N 0.000 description 1
- MRMOPGVGWFNHIN-UHFFFAOYSA-N 1,6-dioxacycloheptadecan-7-one Chemical compound O=C1CCCCCCCCCCOCCCCO1 MRMOPGVGWFNHIN-UHFFFAOYSA-N 0.000 description 1
- MKEIDVFLAWJKMY-UHFFFAOYSA-N 1,7-dioxacycloheptadecan-8-one Chemical compound O=C1CCCCCCCCCOCCCCCO1 MKEIDVFLAWJKMY-UHFFFAOYSA-N 0.000 description 1
- MZLRFHKWWCSGHB-UHFFFAOYSA-N 1,8-dioxacycloheptadecan-9-one Chemical compound O=C1CCCCCCCCOCCCCCCO1 MZLRFHKWWCSGHB-UHFFFAOYSA-N 0.000 description 1
- RHAFLCUWVSTYEU-UHFFFAOYSA-N 1-oxa-7-thiacycloheptadecan-17-one Chemical compound O=C1CCCCCCCCCSCCCCCO1 RHAFLCUWVSTYEU-UHFFFAOYSA-N 0.000 description 1
- MULOAKRPQHPZAW-UHFFFAOYSA-N 10-(5-hydroxypentoxy)decanoic acid Chemical compound OCCCCCOCCCCCCCCCC(O)=O MULOAKRPQHPZAW-UHFFFAOYSA-N 0.000 description 1
- VAMZUTOLMMRTEW-UHFFFAOYSA-N 10-(5-hydroxypentylsulfanyl)decanoic acid Chemical compound OCCCCCSCCCCCCCCCC(O)=O VAMZUTOLMMRTEW-UHFFFAOYSA-N 0.000 description 1
- XWNROGXVXYCHBM-UHFFFAOYSA-N 11-(4-hydroxybutylsulfanyl)undecanoic acid Chemical compound OCCCCSCCCCCCCCCCC(O)=O XWNROGXVXYCHBM-UHFFFAOYSA-N 0.000 description 1
- QFGCFKJIPBRJGM-UHFFFAOYSA-N 12-[(2-methylpropan-2-yl)oxy]-12-oxododecanoic acid Chemical compound CC(C)(C)OC(=O)CCCCCCCCCCC(O)=O QFGCFKJIPBRJGM-UHFFFAOYSA-N 0.000 description 1
- LFSKFRWAJGNWJG-UHFFFAOYSA-N 4-methyl-1,7-dioxacycloheptadecane-8,17-dione Chemical compound CC1CCOC(=O)CCCCCCCCC(=O)OCC1 LFSKFRWAJGNWJG-UHFFFAOYSA-N 0.000 description 1
- HAIVWDGLCRYQMC-UHFFFAOYSA-N 4-methylpentane-1,4-diol Chemical compound CC(C)(O)CCCO HAIVWDGLCRYQMC-UHFFFAOYSA-N 0.000 description 1
- DLMIUMCETWCTHV-UHFFFAOYSA-N 6-hydroxyhexadecanoic acid Chemical compound CCCCCCCCCCC(O)CCCCC(O)=O DLMIUMCETWCTHV-UHFFFAOYSA-N 0.000 description 1
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-L Malonate Chemical compound [O-]C(=O)CC([O-])=O OFOBLEOULBTSOW-UHFFFAOYSA-L 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229940067597 azelate Drugs 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- HUTDDBSSHVOYJR-UHFFFAOYSA-H bis[(2-oxo-1,3,2$l^{5},4$l^{2}-dioxaphosphaplumbetan-2-yl)oxy]lead Chemical compound [Pb+2].[Pb+2].[Pb+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O HUTDDBSSHVOYJR-UHFFFAOYSA-H 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012691 depolymerization reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- GTZOYNFRVVHLDZ-UHFFFAOYSA-N dodecane-1,1-diol Chemical compound CCCCCCCCCCCC(O)O GTZOYNFRVVHLDZ-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000011521 glass Substances 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
- 150000004820 halides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000156 lead(II) phosphate Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- PXDRFTPXHTVDFR-UHFFFAOYSA-N propane;titanium(4+) Chemical compound [Ti+4].C[CH-]C.C[CH-]C.C[CH-]C.C[CH-]C PXDRFTPXHTVDFR-UHFFFAOYSA-N 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 239000008257 shaving cream Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical class OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- DXNCZXXFRKPEPY-UHFFFAOYSA-N tridecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCC(O)=O DXNCZXXFRKPEPY-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Landscapes
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40415882A | 1982-08-02 | 1982-08-02 | |
| US404158 | 1982-08-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5943023A true JPS5943023A (ja) | 1984-03-09 |
| JPH0434554B2 JPH0434554B2 (enExample) | 1992-06-08 |
Family
ID=23598407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14064183A Granted JPS5943023A (ja) | 1982-08-02 | 1983-08-02 | 触媒としてダウソナイトを使用するポリエステルの解重合法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5943023A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6417469B1 (en) | 1998-06-25 | 2002-07-09 | Omron Corporation | Illuminated push button switch |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54103884A (en) * | 1978-01-31 | 1979-08-15 | Mitsui Petrochem Ind Ltd | Preparation of large ring ethylenedioate |
-
1983
- 1983-08-02 JP JP14064183A patent/JPS5943023A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54103884A (en) * | 1978-01-31 | 1979-08-15 | Mitsui Petrochem Ind Ltd | Preparation of large ring ethylenedioate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6417469B1 (en) | 1998-06-25 | 2002-07-09 | Omron Corporation | Illuminated push button switch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0434554B2 (enExample) | 1992-06-08 |
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