EP4469429A1 - Lagerung und/oder transport ethylenisch ungesättigter verbindungen - Google Patents
Lagerung und/oder transport ethylenisch ungesättigter verbindungenInfo
- Publication number
- EP4469429A1 EP4469429A1 EP23700847.9A EP23700847A EP4469429A1 EP 4469429 A1 EP4469429 A1 EP 4469429A1 EP 23700847 A EP23700847 A EP 23700847A EP 4469429 A1 EP4469429 A1 EP 4469429A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ethylenically unsaturated
- unsaturated compound
- oxyl
- weight
- sterically hindered
- 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.)
- Pending
Links
- 150000001875 compounds Chemical class 0.000 title claims abstract description 86
- 238000010526 radical polymerization reaction Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000006116 polymerization reaction Methods 0.000 claims description 35
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 26
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 24
- 239000003112 inhibitor Substances 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- CSGAUKGQUCHWDP-UHFFFAOYSA-N 1-hydroxy-2,2,6,6-tetramethylpiperidin-4-ol Chemical compound CC1(C)CC(O)CC(C)(C)N1O CSGAUKGQUCHWDP-UHFFFAOYSA-N 0.000 claims description 11
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 8
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 6
- 239000012298 atmosphere Substances 0.000 claims description 5
- 150000001733 carboxylic acid esters Chemical class 0.000 claims description 5
- 239000003505 polymerization initiator Substances 0.000 claims description 5
- -1 2,2,6,6-tetramethylpiperdine compound Chemical class 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 claims description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 3
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- 150000001879 copper Chemical class 0.000 claims description 2
- 150000002696 manganese Chemical class 0.000 claims description 2
- 150000002832 nitroso derivatives Chemical class 0.000 claims description 2
- 150000001728 carbonyl compounds Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 18
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 13
- 150000002148 esters Chemical class 0.000 description 9
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 8
- 230000002269 spontaneous effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PUGOMSLRUSTQGV-UHFFFAOYSA-N 2,3-di(prop-2-enoyloxy)propyl prop-2-enoate Chemical compound C=CC(=O)OCC(OC(=O)C=C)COC(=O)C=C PUGOMSLRUSTQGV-UHFFFAOYSA-N 0.000 description 2
- WROUWQQRXUBECT-UHFFFAOYSA-N 2-ethylacrylic acid Chemical compound CCC(=C)C(O)=O WROUWQQRXUBECT-UHFFFAOYSA-N 0.000 description 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000005396 acrylic acid ester group Chemical group 0.000 description 2
- 235000010323 ascorbic acid Nutrition 0.000 description 2
- 229960005070 ascorbic acid Drugs 0.000 description 2
- 239000011668 ascorbic acid Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 2
- 125000005395 methacrylic acid group Chemical group 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000012966 redox initiator Substances 0.000 description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- CRGBPDJWOLULDY-UHFFFAOYSA-N (1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) acetate Chemical compound CC(=O)OC1CC(C)(C)N(O)C(C)(C)C1 CRGBPDJWOLULDY-UHFFFAOYSA-N 0.000 description 1
- DRFYZAIGLPMIOS-UHFFFAOYSA-N (1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) benzoate Chemical compound C1C(C)(C)N(O)C(C)(C)CC1OC(=O)C1=CC=CC=C1 DRFYZAIGLPMIOS-UHFFFAOYSA-N 0.000 description 1
- IYKZUARSRNSVTC-UHFFFAOYSA-N (1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC1CC(C)(C)N(O)C(C)(C)C1 IYKZUARSRNSVTC-UHFFFAOYSA-N 0.000 description 1
- YCLSJTFYFXJNPR-UHFFFAOYSA-N 1-(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)ethyl hexanoate Chemical compound CCCCCC(=O)OC(C)C1CC(C)(C)N(O)C(C)(C)C1 YCLSJTFYFXJNPR-UHFFFAOYSA-N 0.000 description 1
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 description 1
- KMEUSKGEUADGET-UHFFFAOYSA-N 1-hydroxy-2,2,6,6-tetramethylpiperidin-4-one Chemical compound CC1(C)CC(=O)CC(C)(C)N1O KMEUSKGEUADGET-UHFFFAOYSA-N 0.000 description 1
- VUZNLSBZRVZGIK-UHFFFAOYSA-N 2,2,6,6-Tetramethyl-1-piperidinol Chemical compound CC1(C)CCCC(C)(C)N1O VUZNLSBZRVZGIK-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 1
- GTELLNMUWNJXMQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO GTELLNMUWNJXMQ-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical compound CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 description 1
- PSZAEHPBBUYICS-UHFFFAOYSA-N 2-methylidenepropanedioic acid Chemical compound OC(=O)C(=C)C(O)=O PSZAEHPBBUYICS-UHFFFAOYSA-N 0.000 description 1
- JPHYFFRXJKGOED-UHFFFAOYSA-N 3-dodecyl-1-(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione Chemical compound O=C1C(CCCCCCCCCCCC)CC(=O)N1C1CC(C)(C)N(O)C(C)(C)C1 JPHYFFRXJKGOED-UHFFFAOYSA-N 0.000 description 1
- NDWUBGAGUCISDV-UHFFFAOYSA-N 4-hydroxybutyl prop-2-enoate Chemical compound OCCCCOC(=O)C=C NDWUBGAGUCISDV-UHFFFAOYSA-N 0.000 description 1
- ZULAQTMCHQGOMI-UHFFFAOYSA-N CC(C)(C)C1=CC=C(C(O)=O)C(C2CC(C)(C)N(O)C(C)(C)C2)=C1 Chemical compound CC(C)(C)C1=CC=C(C(O)=O)C(C2CC(C)(C)N(O)C(C)(C)C2)=C1 ZULAQTMCHQGOMI-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- WJZRRMYMGWLZDY-UHFFFAOYSA-N bis(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) benzene-1,2-dicarboxylate Chemical compound C1C(C)(C)N(O)C(C)(C)CC1OC(=O)C1=CC=CC=C1C(=O)OC1CC(C)(C)N(O)C(C)(C)C1 WJZRRMYMGWLZDY-UHFFFAOYSA-N 0.000 description 1
- YJLOZVIELWKSNE-UHFFFAOYSA-N bis(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) benzene-1,3-dicarboxylate Chemical compound C1C(C)(C)N(O)C(C)(C)CC1OC(=O)C1=CC=CC(C(=O)OC2CC(C)(C)N(O)C(C)(C)C2)=C1 YJLOZVIELWKSNE-UHFFFAOYSA-N 0.000 description 1
- MYKPPUUOBUFFML-UHFFFAOYSA-N bis(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) benzene-1,4-dicarboxylate Chemical compound C1C(C)(C)N(O)C(C)(C)CC1OC(=O)C1=CC=C(C(=O)OC2CC(C)(C)N(O)C(C)(C)C2)C=C1 MYKPPUUOBUFFML-UHFFFAOYSA-N 0.000 description 1
- ZXDIQRGIYADNBI-UHFFFAOYSA-N bis(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) butanedioate Chemical compound C1C(C)(C)N(O)C(C)(C)CC1OC(=O)CCC(=O)OC1CC(C)(C)N(O)C(C)(C)C1 ZXDIQRGIYADNBI-UHFFFAOYSA-N 0.000 description 1
- GITLFISGTYWQIU-UHFFFAOYSA-N bis(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) cyclohexane-1,4-dicarboxylate Chemical compound C1C(C)(C)N(O)C(C)(C)CC1OC(=O)C1CCC(C(=O)OC2CC(C)(C)N(O)C(C)(C)C2)CC1 GITLFISGTYWQIU-UHFFFAOYSA-N 0.000 description 1
- SXPLGYBFGPYAHS-UHFFFAOYSA-N bis(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)N(O)C(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)N(O)C(C)(C)C1 SXPLGYBFGPYAHS-UHFFFAOYSA-N 0.000 description 1
- SIXHNVLZVKYFOR-UHFFFAOYSA-N bis(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) hexanedioate Chemical compound C1C(C)(C)N(O)C(C)(C)CC1OC(=O)CCCCC(=O)OC1CC(C)(C)N(O)C(C)(C)C1 SIXHNVLZVKYFOR-UHFFFAOYSA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 125000004386 diacrylate group Chemical group 0.000 description 1
- 239000001177 diphosphate Substances 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical class [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- VFNGKCDDZUSWLR-UHFFFAOYSA-N disulfuric acid Chemical class OS(=O)(=O)OS(O)(=O)=O VFNGKCDDZUSWLR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 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
- 238000004519 manufacturing process Methods 0.000 description 1
- HNEGQIOMVPPMNR-NSCUHMNNSA-N mesaconic acid Chemical compound OC(=O)C(/C)=C/C(O)=O HNEGQIOMVPPMNR-NSCUHMNNSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- HNEGQIOMVPPMNR-UHFFFAOYSA-N methylfumaric acid Natural products OC(=O)C(C)=CC(O)=O HNEGQIOMVPPMNR-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- FSDNTQSJGHSJBG-UHFFFAOYSA-N piperidine-4-carbonitrile Chemical compound N#CC1CCNCC1 FSDNTQSJGHSJBG-UHFFFAOYSA-N 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- WLGSYBIYACWXFF-UHFFFAOYSA-N tris(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl) phosphite Chemical compound C1C(C)(C)N(O)C(C)(C)CC1OP(OC1CC(C)(C)N(O)C(C)(C)C1)OC1CC(C)(C)N(O)C(C)(C)C1 WLGSYBIYACWXFF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/50—Use of additives, e.g. for stabilisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3435—Piperidines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
- C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
- C07C57/03—Monocarboxylic acids
- C07C57/04—Acrylic acid; Methacrylic acid
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/62—Use of additives, e.g. for stabilisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
- C07C69/533—Monocarboxylic acid esters having only one carbon-to-carbon double bond
- C07C69/54—Acrylic acid esters; Methacrylic acid esters
-
- 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
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
- C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- 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
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/12—Esters of monohydric alcohols or phenols
- C08F20/14—Methyl esters, e.g. methyl (meth)acrylate
-
- 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
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/12—Esters of monohydric alcohols or phenols
- C08F20/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F20/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
Definitions
- the present invention relates to a method for storing and/or transporting an ethylenically unsaturated compound, the ethylenically unsaturated compound being protected against undesired radical polymerization with a sterically hindered N-oxyl.
- Chemical compounds that have one or more ethylenically unsaturated groups have a pronounced tendency to radical polymerization. Such compounds are therefore also referred to below as polymerizable compounds. Because of their propensity for radical polymerization, these compounds are used as monomers to make polymers. However, the pronounced tendency of these compounds to polymerize by free radicals is disadvantageous in that it occurs both during storage and transport and during chemical and/or physical processing, such as distillation or rectification, in particular under the action of energy, such as heat and/or light. undesired, spontaneous free-radical polymerization can occur. Such uncontrolled polymerizations can lead to the gradual formation of polymer deposits, for example on heated surfaces, which necessitates removal of the polymer deposits and thus often leads to a reduction in operating times. The uncontrolled polymerizations can even proceed explosively.
- polymerization inhibitors it is therefore customary to add compounds, both during storage and transport and during chemical and/or physical processing, to ethylenically unsaturated compounds that have a tendency to undergo free-radical polymerization, or to mixtures containing such compounds, which have an undesirable, spontaneous free-radical effect Prevent polymerization or at least slow it down.
- Such substances are referred to as polymerization inhibitors.
- Polymerization inhibitors can be used as individual chemical compounds or as mixtures of compounds. Depending on the field of application of the polymerization inhibitor, certain requirements are made of it. For the suitability of a polymerization inhibitor as a transport and/or storage stabilizer of ethylenically unsaturated compounds, it is important that the efficiency of the polymerization inhibitor, ie the extent of polymerization inhibition, can be regulated.
- the polymerization inhibitor should sufficiently prevent or slow down the unwanted, spontaneous free-radical polymerization, whereas the desired free-radical polymerization of the ethylenically unsaturated compounds should be possible under appropriate polymerization conditions without the Necessity of having to separate off the polymerization inhibitor used during storage and/or transport beforehand. If the stabilizer used during storage and/or transport is not separated off during the intended polymerization, it is important that it does not adversely affect the intended polymerization, for example by acting unintentionally as a regulator.
- acrylic acid is certainly one of the most important ethylenically unsaturated compounds.
- acrylic acid is stabilized against undesired, spontaneous radical polymerization during storage and/or transport with 0.018 to 0.022% by weight of hydroquinone monomethyl ether (MEHQ), based on the amount of acrylic acid.
- MEHQ hydroquinone monomethyl ether
- Sufficient stabilization of the acrylic acid against undesired, spontaneous free-radical polymerization by means of MEHQ requires sufficient amounts of oxygen to be dissolved in the acrylic acid.
- Sufficient amounts of oxygen are generally dissolved in the acrylic acid when acrylic acid is stored and/or transported under an atmosphere containing 5 to 21% by volume oxygen.
- the oxygen content dissolved in the acrylic acid is reduced, as a result of which the efficiency of MEHQ for polymerization inhibition is reduced such that acrylic acid can be polymerized in the presence of MEHQ.
- MEHQ is also used as a polymerization inhibitor in the storage and/or transport of methacrylic acid, acrylic esters and/or methacrylic esters or mixtures containing one or more of the aforementioned compounds.
- MEHQ is one of the most important storage and/or transport stabilizers for ethylenically unsaturated compounds, in particular for acrylic acid, methacrylic acid, acrylic acid esters and methacrylic acid esters.
- ethylenically unsaturated compounds takes place in suitable, permanently installed containers, such as storage tanks (see, for example, Acrylic Acid, A Summary of Safety and Action, 4th Edition 2013, 7 Bulk Storage Facilities and Accessories). It is preferred that the ethylenically unsaturated compounds are in the respective containers during storage, preferably for at least one hour, particularly preferably at least 10 hours, very particularly preferably at least 100 hours. Although the duration of storage under appropriate conditions is theoretically unlimited, the duration of storage is usually reduced to a minimum for economic reasons. It is preferred that the ethylenically unsaturated compounds are stored for a maximum of 180 days, in particular preferably for a maximum of 90 days, very particularly preferably for a maximum of 30 days, are in the respective containers. Particularly preferred ranges result from any combination of the aforementioned lower and upper limits.
- the transport of ethylenically unsaturated compounds usually takes place in suitable, transportable containers such as tanks or barrels by ship, railway wagon and/or truck (see, for example, Acrylic Acid, A Summary of Safety and Handling, 4th Edition 2013, 9 Safe Transport of Acrylic Acid).
- suitable, transportable containers such as tanks or barrels by ship, railway wagon and/or truck (see, for example, Acrylic Acid, A Summary of Safety and Handling, 4th Edition 2013, 9 Safe Transport of Acrylic Acid).
- the transportable containers can also be permanently installed on the corresponding means of transport, for example ship tanks or railroad tank cars.
- the transport of ethylenically unsaturated compounds can also take place in pipelines or hoses, for example after purification of the ethylenically unsaturated compound to the storage tank, during loading from the storage tank into a transportable container and/or during loading from one transportable container into another. It is preferred that the ethylenically unsaturated compounds are in the respective containers during transport, preferably for at least one hour, particularly preferably at least 10 hours, very particularly preferably at least 100 hours. Although the duration is theoretically unlimited under appropriate conditions, the duration is usually reduced to a minimum for economic and safety reasons.
- ethylenically unsaturated compounds are in the respective containers for a maximum of 180 days, particularly preferably for a maximum of 90 days, very particularly preferably for a maximum of 30 days. Particularly preferred ranges result from any combination of the aforementioned lower and upper limits.
- EP 0 685 447 A2 and JP 2002-234858 A disclose mixtures of polymerization inhibitors for (meth)acrylic acid and esters thereof.
- the mixtures contain N-oxyls.
- WO 2001/040149 A2 and WO 2001/040319 A2 disclose mixtures of polymerization inhibitors for ethylenically unsaturated monomers. The mixtures also contain N-oxyls.
- the object of the present invention to provide a process for storing and/or transporting ethylenically unsaturated compounds.
- the polymerization inhibitors are intended to ensure adequate stabilization of the ethylenically unsaturated compounds against unwanted radical polymerization. In the case of the desired free-radical polymerization, however, there should be no need to separate the polymerization inhibitors from the mixture before the polymerization. The polymerization inhibitors should therefore at the wanted free-radical polymerization do not act as polymerization regulators and / or polymerization inhibitors.
- the object is achieved by a method for storing and/or transporting an ethylenically unsaturated compound, the ethylenically unsaturated compound having a purity of at least 90% by weight, the mass of stored and/or transported ethylenically unsaturated compound being at least 100 kg, the ethylenically unsaturated compound has a temperature of less than 50°C during storage and/or transport and the ethylenically unsaturated compound is a carboxylic acid or a carboxylic acid ester, characterized in that the ethylenically unsaturated compound contains from 0.00001 to 0.00050% by weight % (0.1 to 5 ppm), based on the total amount of ethylenically unsaturated compound, of a sterically hindered N-oxyl.
- Sterically hindered N-oxyls have an NO group with a free electron on the oxygen atom and fully substituted carbon atoms adjacent to the NO group.
- Suitable sterically hindered N-oxyls are 1-oxyl-2,2,6,6-tetramethylpiperidine, 1-oxyl-2,2,6,6-tetramethylpiperidin-4-ol (HTEMPO), 1-oxyl-2,2, 6,6-tetramethylpiperidin-4-one, 1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl acetate, 1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl-2- ethyl hexanoate, 1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl stearate, 1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl benzoate, 1-oxyl-2,2, 6,6-tetramethylpiperidin-4-yl-(4-tert-butyl)benzoate, bis(1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl) succinate, bis(1-oxyl -2,
- the purity of the ethylenically unsaturated compound is preferably at least 95% by weight, particularly preferably at least 98% by weight, very particularly preferably at least 99% by weight.
- the mass of stored and/or transported ethylenically unsaturated compound is preferably at least 200 kg, more preferably at least 500 kg, most especially preferably at least 1,000 kg.
- the mass of stored and/or transported ethylenically unsaturated compound is usually less than 10,000,000 kg.
- the ethylenically unsaturated compound has a temperature of preferably less than 45°C, more preferably less than 40°C, most preferably less than 35°C during storage and/or transport.
- the temperature during storage and/or transport should be at least 15°C.
- the ethylenically unsaturated compound preferably contains less than 0.0001% by weight each of a manganese salt, a copper salt, a non-N-oxyl 2,2,6,6-tetramethylpiperdine compound, and a nitroso compound, based on the total amount ethylenically unsaturated compound.
- the sterically hindered N-oxyl is used essentially as the sole polymerization inhibitor.
- the ethylenically unsaturated compound preferably contains from 0.00005 to 0.00045% by weight (0.5 to 4.5 ppm), more preferably from 0.00010 to 0.00040% by weight (1 to 4 ppm), very particularly preferably from 0.00015 to 0.00035% by weight (1.5 to 3.5 ppm), based in each case on the total amount of ethylenically unsaturated compound.
- the ethylenically unsaturated compounds are preferably mono-, di- or triethylenically unsaturated C3 to C6 carboxylic acids, mono-, di- or triethylenically unsaturated C3 to C6 carboxylic acid esters having 1 to 20 carbon atoms in the ester groups.
- Mono-, di- or triethylenically unsaturated C3 to Cß-carboxylic acids for example acrylic acid, methacrylic acid, dimethacrylic acid, ethacrylic acid, citraconic acid, methylenemalonic acid, crotonic acid, fumaric acid, mesaconic acid, itaconic acid and maleic acid
- mono-, di- or triethylenically unsaturated C3 are particularly preferred - to Cß-carboxylic acid esters having 1 to 12 carbon atoms in the ester groups, for example acrylic acid esters with Ci to Ci2-alkyl, methacrylic acid esters with Ci- to Ci2-alkyl, dimethacrylic acid esters with Ci- to Ci2-alkyl, ethacrylic acid esters with Ci- to Ci2- -Alkyl, citraconic esters with Ci to Ci2-alkyl, methylenemalonic esters with C1- to Ci2-alkyl, crotonic esters with Ci- to
- acrylic acid methacrylic acid
- acrylic esters with C 1 -C 8 -alkyl such as methyl acrylate, ethyl acrylate, n-butyl acrylate and 2-ethylhexyl acrylate
- methacrylic esters with C 1 -C 8 -alkyl such as methyl methacrylate.
- ethylenically unsaturated compounds are dipropylene glycol diacrylate, tripropylene glycol diacrylate, polyethylene glycol diacrylate, glycerol triacrylate, ethoxylated glycerol triacrylate, trimethylolpropane triacrylate, ethoxylated trimethylolpropane triacrylate, butanediol monoacrylate, dicyclopentadienyl acrylate, 2-dimethylaminoethyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate.
- Acrylic acid and/or methacrylic acid are usually stored and/or transported in containers made of stainless steel.
- Suitable stainless steels contain 16.5 to 19.5% by weight chromium and from 8.0 to 13.5% by weight nickel.
- the ethylenically unsaturated compound is usually stored and/or transported under an oxygen-containing atmosphere.
- the ethylenically unsaturated compound is preferably stored in a container under an oxygen-containing atmosphere with an oxygen content of 5 to 10% by volume and the mixture in the container is regularly circulated, for example by pumping the contents of the tank completely around at least once a week.
- the relatively low oxygen content prevents ignitable gas mixtures in the container.
- the agitation replaces spent dissolved oxygen in the liquid ethylenically unsaturated compound.
- Further objects of the present invention are a process for radical polymerization, wherein at least one of the ethylenically unsaturated compounds described above is polymerized by means of a polymerization initiator, and the use of one of the ethylenically unsaturated compounds described above for radical polymerization by means of a polymerization initiator.
- Water-soluble and water-swellable polyacrylic acids and their sodium salts can be obtained by the radical polymerization according to the invention.
- the radical polymerization per se is well known and is usually carried out in solution. All compounds which can decompose into free radicals under the chosen reaction conditions are suitable as polymerization initiators, for example thermal initiators, redox initiators, photoinitiators. Suitable thermal initiators are peroxomono and disulfates as well as peroxomono- and diphosphates. Suitable redox initiators are sodium peroxodisulfate/ascorbic acid, hydrogen peroxide/ascorbic acid, sodium peroxodisulfate/sodium hypophosphite, sodium peroxodisulfate/sodium bisulfite and hydrogen peroxide/sodium bisulfite.
- thermal initiators are peroxomono and disulfates as well as peroxomono- and diphosphates.
- Suitable redox initiators are sodium peroxodisulfate/ascorbic acid, hydrogen peroxide/ascorbic acid, sodium peroxodisul
- the ethylenically unsaturated compound used was double distilled to remove the polymerization inhibitor hydroquinone monomethyl ether (MEHQ). In each case, the stated amount of the stated polymerization inhibitor was added to the ethylenically unsaturated compound obtained.
- MEHQ and 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl (HTEMPO) were used.
- each of the respective mixture was filled into a 1.8 ml ampoule and stored in a circulating air drying cabinet at the indicated temperature.
- HTEMPO 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl
- Stream 1 dosage over 5 hours, 500 g of acrylic acid Stream 2: Dose over 4.75 hours, 15 g sodium hypophosphite in 35 g deionized water
- reaction mixture was stirred at 95°C for a further hour.
- the reaction mixture was then cooled to room temperature and treated with 80 g of water.
- the acrylic acid used in stream 1 was stabilized with MEHQ or 4-hydroxy-2,2,6,6-tetramethyl-piperidin-N-oxyl (HTEMPO).
- HTEMPO 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl
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Abstract
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| Application Number | Priority Date | Filing Date | Title |
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| EP22153375 | 2022-01-26 | ||
| PCT/EP2023/050806 WO2023143939A1 (de) | 2022-01-26 | 2023-01-16 | Lagerung und/oder transport ethylenisch ungesättigter verbindungen |
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| US (1) | US20250109276A1 (de) |
| EP (1) | EP4469429A1 (de) |
| JP (1) | JP2025504548A (de) |
| KR (1) | KR20240141744A (de) |
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| TW294658B (de) | 1994-06-02 | 1997-01-01 | Nippon Catalytic Chem Ind | |
| KR100715592B1 (ko) * | 1999-12-02 | 2007-05-10 | 켐트라 코포레이션 | 불포화 모노머의 중합 억제방법 |
| AR029410A1 (es) | 1999-12-02 | 2003-06-25 | Crompton Corp | Metodo para inhibir la polimerizacion prematura de monomeros etilenicamente insaturados y composiciones de los mismos |
| JP2002234858A (ja) | 2001-02-08 | 2002-08-23 | Mitsubishi Rayon Co Ltd | α,β−不飽和カルボン酸及びそのエステルの重合防止方法 |
| JP2011506517A (ja) | 2007-12-19 | 2011-03-03 | エボニック レーム ゲゼルシャフト ミット ベシュレンクテル ハフツング | (メタ)アクリレートの製造方法 |
| DE102009001577A1 (de) | 2009-03-16 | 2010-09-23 | Evonik Röhm Gmbh | Für eine Aufreinigung stabilisierte Zusammensetzung und Verfahren zur Aufreinigung und zur Herstellung von Hydroxyalkyl(meth)acrylaten |
| EP3828159A1 (de) | 2019-11-28 | 2021-06-02 | Basf Se | Lager- und transportstabilisatoren für polymerisationsfähige verbindungen |
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| CN118613463A (zh) | 2024-09-06 |
| JP2025504548A (ja) | 2025-02-12 |
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