KR100389242B1 - 고중합성n-비닐카복실산아미드및이의제조방법 - Google Patents
고중합성n-비닐카복실산아미드및이의제조방법 Download PDFInfo
- Publication number
- KR100389242B1 KR100389242B1 KR1019970705795A KR19977005795A KR100389242B1 KR 100389242 B1 KR100389242 B1 KR 100389242B1 KR 1019970705795 A KR1019970705795 A KR 1019970705795A KR 19977005795 A KR19977005795 A KR 19977005795A KR 100389242 B1 KR100389242 B1 KR 100389242B1
- Authority
- KR
- South Korea
- Prior art keywords
- acid amide
- vinylcarboxylic
- vinylcarboxylic acid
- alkoxyethyl
- carboxylic acid
- 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 - Lifetime
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- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 title claims abstract description 158
- 238000002360 preparation method Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 claims abstract description 89
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 74
- CGRKYGKHZOCPSZ-UHFFFAOYSA-N 2-methylpropanediamide Chemical compound NC(=O)C(C)C(N)=O CGRKYGKHZOCPSZ-UHFFFAOYSA-N 0.000 claims abstract description 43
- NZGMXBADPHMBCL-UHFFFAOYSA-N n-buta-1,3-dienylformamide Chemical compound C=CC=CNC=O NZGMXBADPHMBCL-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000000178 monomer Substances 0.000 claims abstract description 18
- 229920001577 copolymer Polymers 0.000 claims abstract description 6
- 229920001519 homopolymer Polymers 0.000 claims abstract description 6
- 238000004523 catalytic cracking Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 63
- 239000000243 solution Substances 0.000 claims description 58
- -1 1,3-butadienyl Chemical group 0.000 claims description 46
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims description 29
- 238000004519 manufacturing process Methods 0.000 claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 238000005698 Diels-Alder reaction Methods 0.000 claims description 18
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 18
- 238000005984 hydrogenation reaction Methods 0.000 claims description 17
- 238000000197 pyrolysis Methods 0.000 claims description 17
- 239000003463 adsorbent Substances 0.000 claims description 16
- 150000001408 amides Chemical class 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 238000006116 polymerization reaction Methods 0.000 claims description 15
- 238000003421 catalytic decomposition reaction Methods 0.000 claims description 14
- 238000001179 sorption measurement Methods 0.000 claims description 14
- 238000000746 purification Methods 0.000 claims description 12
- 238000000354 decomposition reaction Methods 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 230000002378 acidificating effect Effects 0.000 claims description 7
- 125000000219 ethylidene group Chemical group [H]C(=[*])C([H])([H])[H] 0.000 claims description 6
- 230000002194 synthesizing effect Effects 0.000 claims description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 claims 1
- SNCZNSNPXMPCGN-UHFFFAOYSA-N butanediamide Chemical compound NC(=O)CCC(N)=O SNCZNSNPXMPCGN-UHFFFAOYSA-N 0.000 abstract 1
- 238000004227 thermal cracking Methods 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 101
- RQAKESSLMFZVMC-UHFFFAOYSA-N n-ethenylacetamide Chemical compound CC(=O)NC=C RQAKESSLMFZVMC-UHFFFAOYSA-N 0.000 description 77
- KMLONCKJQMYVCO-UHFFFAOYSA-N n-buta-1,3-dienylacetamide Chemical compound CC(=O)NC=CC=C KMLONCKJQMYVCO-UHFFFAOYSA-N 0.000 description 36
- SPEUIVXLLWOEMJ-UHFFFAOYSA-N 1,1-dimethoxyethane Chemical compound COC(C)OC SPEUIVXLLWOEMJ-UHFFFAOYSA-N 0.000 description 26
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 22
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 20
- 239000002904 solvent Substances 0.000 description 19
- 150000001241 acetals Chemical class 0.000 description 17
- 238000004821 distillation Methods 0.000 description 15
- 238000001953 recrystallisation Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000003054 catalyst Substances 0.000 description 14
- RYGPJMDKDKHOTB-UHFFFAOYSA-N n-(1-methoxyethyl)acetamide Chemical compound COC(C)NC(C)=O RYGPJMDKDKHOTB-UHFFFAOYSA-N 0.000 description 14
- 239000002994 raw material Substances 0.000 description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 13
- 239000001257 hydrogen Substances 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 239000007788 liquid Substances 0.000 description 13
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 13
- 239000002243 precursor Substances 0.000 description 13
- 238000010992 reflux Methods 0.000 description 13
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 12
- PMDCZENCAXMSOU-UHFFFAOYSA-N N-ethylacetamide Chemical compound CCNC(C)=O PMDCZENCAXMSOU-UHFFFAOYSA-N 0.000 description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 11
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 11
- 238000000926 separation method Methods 0.000 description 11
- 238000003786 synthesis reaction Methods 0.000 description 11
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical class COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000011521 glass Substances 0.000 description 9
- 239000000543 intermediate Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 6
- FUSUHKVFWTUUBE-UHFFFAOYSA-N buten-2-one Chemical compound CC(=O)C=C FUSUHKVFWTUUBE-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 239000012452 mother liquor Substances 0.000 description 6
- 239000003505 polymerization initiator Substances 0.000 description 6
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 6
- 238000001577 simple distillation Methods 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 150000001735 carboxylic acids Chemical class 0.000 description 5
- 239000012299 nitrogen atmosphere Substances 0.000 description 5
- 229910052763 palladium Inorganic materials 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- JLIDVCMBCGBIEY-UHFFFAOYSA-N 1-penten-3-one Chemical compound CCC(=O)C=C JLIDVCMBCGBIEY-UHFFFAOYSA-N 0.000 description 4
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 238000000862 absorption spectrum Methods 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000007514 bases Chemical class 0.000 description 4
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 4
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 150000004820 halides Chemical class 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 4
- OMAKZNALRADTRX-UHFFFAOYSA-N 1,1,3-trimethoxybutane Chemical compound COC(C)CC(OC)OC OMAKZNALRADTRX-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- TWWSMHPNERSWRN-UHFFFAOYSA-N acetaldehyde diisopropyl acetal Natural products CC(C)OC(C)OC(C)C TWWSMHPNERSWRN-UHFFFAOYSA-N 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 125000005907 alkyl ester group Chemical class 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010533 azeotropic distillation Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 150000001993 dienes Chemical class 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 229920006158 high molecular weight polymer Polymers 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 238000001819 mass spectrum Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- SJSZBOAQWPKFMU-UHFFFAOYSA-N n-(1-acetamidoethyl)acetamide Chemical compound CC(=O)NC(C)NC(C)=O SJSZBOAQWPKFMU-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 235000011056 potassium acetate Nutrition 0.000 description 3
- 159000000001 potassium salts Chemical class 0.000 description 3
- 238000004445 quantitative analysis Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- 239000011949 solid catalyst Substances 0.000 description 3
- 238000003797 solvolysis reaction Methods 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- UZKWTJUDCOPSNM-UHFFFAOYSA-N 1-ethenoxybutane Chemical compound CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 2
- BPAZNZINLQSFMN-UHFFFAOYSA-N 2-propan-2-yl-4,5-dihydro-1h-imidazole;dihydrochloride Chemical compound Cl.Cl.CC(C)C1=NCCN1 BPAZNZINLQSFMN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- LXEKPEMOWBOYRF-UHFFFAOYSA-N [2-[(1-azaniumyl-1-imino-2-methylpropan-2-yl)diazenyl]-2-methylpropanimidoyl]azanium;dichloride Chemical compound Cl.Cl.NC(=N)C(C)(C)N=NC(C)(C)C(N)=N LXEKPEMOWBOYRF-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 125000003282 alkyl amino group Chemical group 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 150000004982 aromatic amines Chemical class 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 2
- 239000012045 crude solution Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- WFKAJVHLWXSISD-UHFFFAOYSA-N isobutyramide Chemical compound CC(C)C(N)=O WFKAJVHLWXSISD-UHFFFAOYSA-N 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 150000004702 methyl esters Chemical class 0.000 description 2
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- QYZFTMMPKCOTAN-UHFFFAOYSA-N n-[2-(2-hydroxyethylamino)ethyl]-2-[[1-[2-(2-hydroxyethylamino)ethylamino]-2-methyl-1-oxopropan-2-yl]diazenyl]-2-methylpropanamide Chemical compound OCCNCCNC(=O)C(C)(C)N=NC(C)(C)C(=O)NCCNCCO QYZFTMMPKCOTAN-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 2
- 239000011736 potassium bicarbonate Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- 229910000160 potassium phosphate Inorganic materials 0.000 description 2
- 235000011009 potassium phosphates Nutrition 0.000 description 2
- RRSDYABZBFZZLT-UHFFFAOYSA-N potassium;3-sulfopropylazanide Chemical compound [K+].[NH-]CCCS(O)(=O)=O RRSDYABZBFZZLT-UHFFFAOYSA-N 0.000 description 2
- CIAKENHSCSJLOJ-UHFFFAOYSA-N potassium;4-sulfobutylazanide Chemical compound [K+].[NH-]CCCCS(O)(=O)=O CIAKENHSCSJLOJ-UHFFFAOYSA-N 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
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- NPSSWQJHYLDCNV-UHFFFAOYSA-N prop-2-enoic acid;hydrochloride Chemical compound Cl.OC(=O)C=C NPSSWQJHYLDCNV-UHFFFAOYSA-N 0.000 description 1
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 description 1
- 229940080818 propionamide Drugs 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 125000005920 sec-butoxy group Chemical group 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- MJWOUYWACLELBP-UHFFFAOYSA-N sodium;2-sulfoethylazanide Chemical compound [Na+].[NH-]CCS(O)(=O)=O MJWOUYWACLELBP-UHFFFAOYSA-N 0.000 description 1
- OLYREVXWRZVUTJ-UHFFFAOYSA-N sodium;sulfomethylazanide Chemical compound [Na+].[NH-]CS(O)(=O)=O OLYREVXWRZVUTJ-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003460 sulfonic acids Chemical group 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- XOAAWQZATWQOTB-UHFFFAOYSA-N taurine Chemical compound NCCS(O)(=O)=O XOAAWQZATWQOTB-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
- C07C233/03—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to hydrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/12—Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/22—Separation; Purification; Stabilisation; Use of additives
- C07C231/24—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
- C07C233/04—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
- C07C233/04—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C233/05—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F126/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F126/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F26/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F26/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims (12)
- N-1,3-부타디에닐카복실산 아미드의 함량이 30ppm이하인 것을 특징으로 하는 고 중합성 N-비닐카복실산 아미드 모노머 조성물.
- 조질의 N-비닐카복실산 아미드를 합성하는 공정과 얻어진 조질의 N-비닐카복실산 아미드 중의 N-1,3-부타디에닐카복실산 아미드의 함량을 30ppm이하로 감소시키는 공정을 구비하는 것을 특징으로 하는 고 중합성 N-비닐카복실산 아미드 모노머 조성물의 제조방법.
- 제 2 항에 있어서, 상기 N-비닐카복실산 아미드는 N-(1-알콕시에틸) 카복실산 아미드의 탈알콜 반응, 또는 카복실산 아미드, 아세트알데히드 및 알콜로부터 또는 카복실산 아미드 및 아세트알데히드 디알킬아세탈로부터 중간체로서 얻어진 N-(1-알콕시에틸)카복실산 아미드의 탈알콜 반응에 의해 제조되는 것을 특징으로 하는 고 중합성 N-비닐카복실산 아미드 모노머 조성물의 제조방법.
- 제 2 항에 있어서, 상기 N-비닐카복실산 아미드는 에틸리덴비스카복실산 아미드의 분해반응 또는 아세트알데히드 및 카복실산 아미드로부터 중간체로서 얻어진 에틸리덴비스카복실산 아미드의 분해반응에 의해 제조되는 것을 특징으로 하는 고 중합성 N-비닐카복실산 아미드 모노머 조성물의 제조방법.
- 제 2 항에 있어서, 상기 감소공정은 조질의 N-비닐카복실산아미드 또는 그 용액을 정류법, 재결정법, 압력결정법, 활성탄 흡착제를 이용한 물리적 흡착법, 딜스·알더 반응법 또는 1,3-부타디에닐 그룹의 선택 수소화 반응법으로 정제처리하는 것을 특징으로 하는 고 중합성 N-비닐카복실산 아미드 모노머 조성물의 제조방법.
- N-1,3-부타디에닐카복실산 아미드의 함량이 30ppm이하인 고 중합성 N-비닐카복실산 아미드를 중합하는 것을 특징으로 하는 고 중합성 N-비닐카복실산아미드 단독중합체 또는 이것과 공중합가능한 다른 단량체와의 공중합체의 제조방법.
- 제 5 항에 있어서, 상기 정제처리는 N-1,3-부타디에닐카복실산 아미드의 촉매 수소화 반응법을 포함하는 것을 특징으로 하는 고 중합성 N-비닐카복실산 아미드 모노머 조성물의 제조방법.
- N-(1-알콕시에틸)카복실산 아미드 또는 에틸리덴비스카복실산 아미드의 열분해 또는 촉매 분해에 의해 N-비닐카복실산 아미드를 제조하며, N-(1-알콕시에틸)카복실산 아미드 또는 에틸리덴비스카복실산 아미드 중의 N-비닐카복실산 아미드 함량이 10 중량% 이하인 것을 특징으로 하는 고 중합성 N-비닐카복실산 아미드의 제조방법.
- N-(1-알콕시에틸)카복실산 아미드 또는 에틸리덴비스카복실산 아미드의 열분해 또는 촉매 분해를 포함하며, N-비닐카복실산 아미드를 제조하는데 사용되는 33중량%의 N-(1-알콕시에틸)카복실산 아미드 또는 에틸리덴비스카복실산 아미드 수용액의 pH를 5∼10으로 조정하는 것을 특징으로 하는 고 중합성 N-비닐카복실산 아미드의 제조방법.
- N-(1-알콕시에틸)카복실산 아미드 또는 에틸리덴비스카복실산 아미드의 열분해 또는 촉매 분해를 포함하고, N-(1-알콕시에틸)카복실산 아미드 또는 에틸리덴비스카복실산 아미드 중의 N-비닐카복실산 아미드 함량이 10 중량% 이하이며, N-비닐카복실산 아미드를 제조하는데 사용되는 33중량%의 N-(1-알콕시에틸)카복실산 아미드 또는 에틸리덴비스카복실산 아미드 수용액의 pH를 5∼10으로 조정하는 것을 특징으로 하는 고 중합성 N-비닐카복실산 아미드의 제조방법.
- N-1,3-부타디에닐카복실산 아미드의 함량이 30ppm이하인 고 중합성 N-비닐카복실산아미드의 중합에 의해 제조되고 중량 평균 분자량이 500,000 이상인 것을 특징으로 하는 N-비닐카복실산 아미드 단독중합체 또는 이것과 공중합가능한 다른 단량체와의 공중합체.
- 제 11 항에 있어서, 중량 평균 분자량이 1,000,000이상인 것을 특징으로 하는 N-비닐카복실산 아미드 단독중합체 또는 이것과 공중합가능한 다른 단량체와의 공중합체.
Applications Claiming Priority (1)
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PCT/JP1995/002757 WO1997024315A1 (en) | 1995-07-13 | 1995-12-28 | Highly polymerizable n-vinylcarboxylic acid amide and production process thereof |
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KR19987002396A KR19987002396A (en) | 1998-07-15 |
KR100389242B1 true KR100389242B1 (ko) | 2003-09-26 |
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KR1019970705795A Expired - Lifetime KR100389242B1 (ko) | 1995-12-28 | 1995-12-28 | 고중합성n-비닐카복실산아미드및이의제조방법 |
KR1019970705795A Granted KR19980702396A (ko) | 1995-12-28 | 1995-12-28 | 고 중합성 n-비닐카복실산 아미드 및 이의 제조방법 |
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KR1019970705795A Granted KR19980702396A (ko) | 1995-12-28 | 1995-12-28 | 고 중합성 n-비닐카복실산 아미드 및 이의 제조방법 |
Country Status (6)
Country | Link |
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KR (2) | KR100389242B1 (ko) |
CN (1) | CN1082943C (ko) |
AT (1) | ATE214690T1 (ko) |
AU (1) | AU716698B2 (ko) |
CA (1) | CA2213119C (ko) |
DE (1) | DE69525974T2 (ko) |
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KR100984601B1 (ko) * | 2005-08-11 | 2010-09-30 | 쇼와 덴코 가부시키가이샤 | 고순도 n-비닐카르복실산아미드의 제조 방법 |
EP2239250A1 (en) * | 2007-12-27 | 2010-10-13 | Showa Denko K.K. | Method for producing n-methyl-n-vinylacetamide having improved stability and polymerizability |
CN113227043B (zh) * | 2018-12-27 | 2024-05-07 | 株式会社力森诺科 | N-乙烯基羧酸酰胺制造用组合物 |
EP4083017B1 (en) * | 2019-12-26 | 2025-03-12 | Resonac Corporation | Method for producing highly polymerizable n-vinylcarboxylic acid amide monomer |
JP7639707B2 (ja) * | 2019-12-26 | 2025-03-05 | 株式会社レゾナック | 高重合性n-ビニルカルボン酸アミド単量体の製造方法 |
US12252458B2 (en) | 2019-12-26 | 2025-03-18 | Resonac Corporation | Method for producing highly polymerizable n-vinyl carboxylic acid amide monomer |
JP7639705B2 (ja) * | 2019-12-26 | 2025-03-05 | 株式会社レゾナック | 高重合性n-ビニルカルボン酸アミド単量体の製造方法 |
EP4083015B1 (en) * | 2019-12-26 | 2025-04-23 | Resonac Corporation | Method for producing highly polymerizable n-vinyl carboxylic acid amide monomer |
CN112047854B (zh) * | 2020-10-20 | 2021-07-02 | 中国科学院长春应用化学研究所 | 一种n-乙烯基烷基酰胺的制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4018826A (en) * | 1974-11-04 | 1977-04-19 | Dynapol Corporation | Process for preparing polyvinylamine and salts thereof |
US4554377A (en) * | 1984-07-16 | 1985-11-19 | Celanese Corporation | Production of N-vinyl carboxylic acid amides |
-
1995
- 1995-12-28 KR KR1019970705795A patent/KR100389242B1/ko not_active Expired - Lifetime
- 1995-12-28 KR KR1019970705795A patent/KR19980702396A/ko active Granted
- 1995-12-28 AT AT95942310T patent/ATE214690T1/de active
- 1995-12-28 DE DE69525974T patent/DE69525974T2/de not_active Expired - Lifetime
- 1995-12-28 CA CA002213119A patent/CA2213119C/en not_active Expired - Fee Related
- 1995-12-28 AU AU43565/96A patent/AU716698B2/en not_active Ceased
- 1995-12-28 CN CN95197828A patent/CN1082943C/zh not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4018826A (en) * | 1974-11-04 | 1977-04-19 | Dynapol Corporation | Process for preparing polyvinylamine and salts thereof |
US4554377A (en) * | 1984-07-16 | 1985-11-19 | Celanese Corporation | Production of N-vinyl carboxylic acid amides |
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Publication number | Publication date |
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KR19987002396A (en) | 1998-07-15 |
AU4356596A (en) | 1997-07-28 |
CN1193959A (zh) | 1998-09-23 |
CA2213119A1 (en) | 1997-07-10 |
AU716698B2 (en) | 2000-03-02 |
ATE214690T1 (de) | 2002-04-15 |
DE69525974D1 (de) | 2002-04-25 |
CN1082943C (zh) | 2002-04-17 |
DE69525974T2 (de) | 2002-11-28 |
CA2213119C (en) | 2007-03-06 |
KR19980702396A (ko) | 1998-07-15 |
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