EP4165104A1 - Procédé de production de copolymères de polyoxyméthylène-polyoxyalkylène - Google Patents
Procédé de production de copolymères de polyoxyméthylène-polyoxyalkylèneInfo
- Publication number
- EP4165104A1 EP4165104A1 EP21730230.6A EP21730230A EP4165104A1 EP 4165104 A1 EP4165104 A1 EP 4165104A1 EP 21730230 A EP21730230 A EP 21730230A EP 4165104 A1 EP4165104 A1 EP 4165104A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxide
- component
- polyoxymethylene
- mol
- compound
- 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
- 238000000034 method Methods 0.000 title claims abstract description 91
- 230000008569 process Effects 0.000 title claims abstract description 59
- 229920001577 copolymer Polymers 0.000 title claims abstract description 51
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Natural products O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 195
- -1 formaldehyde compound Chemical class 0.000 claims abstract description 117
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 84
- 239000003054 catalyst Substances 0.000 claims abstract description 84
- 229910052751 metal Inorganic materials 0.000 claims abstract description 59
- 239000002184 metal Substances 0.000 claims abstract description 59
- 229920000642 polymer Polymers 0.000 claims abstract description 28
- 229920002635 polyurethane Polymers 0.000 claims abstract description 24
- 239000004814 polyurethane Substances 0.000 claims abstract description 24
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 56
- 229920005862 polyol Polymers 0.000 claims description 55
- 150000001875 compounds Chemical class 0.000 claims description 46
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 45
- 150000003077 polyols Chemical class 0.000 claims description 41
- 238000006243 chemical reaction Methods 0.000 claims description 36
- 239000000725 suspension Substances 0.000 claims description 33
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 239000000375 suspending agent Substances 0.000 claims description 24
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 21
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 21
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 18
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 15
- 229920000233 poly(alkylene oxides) Polymers 0.000 claims description 14
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 13
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 12
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 10
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 9
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 9
- 239000000600 sorbitol Substances 0.000 claims description 9
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 8
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 8
- 229920001228 polyisocyanate Polymers 0.000 claims description 8
- 239000005056 polyisocyanate Substances 0.000 claims description 8
- 229920001451 polypropylene glycol Polymers 0.000 claims description 8
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 claims description 7
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 claims description 7
- 125000005704 oxymethylene group Chemical group [H]C([H])([*:2])O[*:1] 0.000 claims description 7
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 7
- 229920000166 polytrimethylene carbonate Polymers 0.000 claims description 7
- 235000013772 propylene glycol Nutrition 0.000 claims description 7
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 6
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 5
- 229930006000 Sucrose Natural products 0.000 claims description 5
- 239000005720 sucrose Substances 0.000 claims description 5
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 4
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 4
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- 239000000811 xylitol Substances 0.000 claims description 4
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 4
- 235000010447 xylitol Nutrition 0.000 claims description 4
- 229960002675 xylitol Drugs 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- AWMVMTVKBNGEAK-UHFFFAOYSA-N Styrene oxide Chemical compound C1OC1C1=CC=CC=C1 AWMVMTVKBNGEAK-UHFFFAOYSA-N 0.000 claims description 3
- HUNNAHJBUMLMBW-UHFFFAOYSA-N butane-1,4-diol;2-ethyl-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCCCCO.CCC(CO)(CO)CO HUNNAHJBUMLMBW-UHFFFAOYSA-N 0.000 claims description 3
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 claims description 3
- ZWAJLVLEBYIOTI-UHFFFAOYSA-N cyclohexene oxide Chemical compound C1CCCC2OC21 ZWAJLVLEBYIOTI-UHFFFAOYSA-N 0.000 claims description 3
- FWFSEYBSWVRWGL-UHFFFAOYSA-N cyclohexene oxide Natural products O=C1CCCC=C1 FWFSEYBSWVRWGL-UHFFFAOYSA-N 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 66
- 239000007858 starting material Substances 0.000 description 47
- 239000000126 substance Substances 0.000 description 43
- 229910002092 carbon dioxide Inorganic materials 0.000 description 36
- 239000001569 carbon dioxide Substances 0.000 description 33
- 239000004721 Polyphenylene oxide Substances 0.000 description 32
- 229920000570 polyether Polymers 0.000 description 32
- 238000007792 addition Methods 0.000 description 20
- 150000002825 nitriles Chemical class 0.000 description 19
- 239000011541 reaction mixture Substances 0.000 description 19
- 239000000047 product Substances 0.000 description 18
- 229930040373 Paraformaldehyde Natural products 0.000 description 17
- 239000003446 ligand Substances 0.000 description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 15
- 150000003839 salts Chemical class 0.000 description 15
- 229920012196 Polyoxymethylene Copolymer Polymers 0.000 description 14
- 238000005227 gel permeation chromatography Methods 0.000 description 14
- 229920006324 polyoxymethylene Polymers 0.000 description 14
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 12
- 229920005830 Polyurethane Foam Polymers 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 150000001298 alcohols Chemical class 0.000 description 12
- 239000007787 solid Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 12
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 11
- 230000004913 activation Effects 0.000 description 11
- 239000011496 polyurethane foam Substances 0.000 description 11
- 238000005406 washing Methods 0.000 description 11
- 239000011701 zinc Substances 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 10
- 239000011261 inert gas Substances 0.000 description 10
- 229920000515 polycarbonate Polymers 0.000 description 10
- 239000004417 polycarbonate Substances 0.000 description 10
- 239000000376 reactant Substances 0.000 description 10
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 9
- 229910002651 NO3 Inorganic materials 0.000 description 9
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 9
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 9
- 150000001450 anions Chemical class 0.000 description 9
- 150000007942 carboxylates Chemical class 0.000 description 9
- 238000007334 copolymerization reaction Methods 0.000 description 9
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 9
- 150000004820 halides Chemical class 0.000 description 9
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 9
- 239000012948 isocyanate Substances 0.000 description 9
- 150000002513 isocyanates Chemical class 0.000 description 9
- 150000002540 isothiocyanates Chemical class 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 229910052725 zinc Inorganic materials 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 235000011187 glycerol Nutrition 0.000 description 8
- 229920002866 paraformaldehyde Polymers 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 7
- 238000005481 NMR spectroscopy Methods 0.000 description 7
- 229920001400 block copolymer Polymers 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 7
- SZAVHWMCBDFDCM-KTTJZPQESA-N cobalt-60(3+);hexacyanide Chemical compound [60Co+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] SZAVHWMCBDFDCM-KTTJZPQESA-N 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Substances C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 7
- HNVRRHSXBLFLIG-UHFFFAOYSA-N 3-hydroxy-3-methylbut-1-ene Chemical compound CC(C)(O)C=C HNVRRHSXBLFLIG-UHFFFAOYSA-N 0.000 description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 6
- 229920005906 polyester polyol Polymers 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 6
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 5
- 150000001735 carboxylic acids Chemical class 0.000 description 5
- 238000005119 centrifugation Methods 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 5
- 229920005903 polyol mixture Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 239000004359 castor oil Substances 0.000 description 4
- 235000019438 castor oil Nutrition 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- GHLKSLMMWAKNBM-UHFFFAOYSA-N dodecane-1,12-diol Chemical compound OCCCCCCCCCCCCO GHLKSLMMWAKNBM-UHFFFAOYSA-N 0.000 description 4
- 150000002118 epoxides Chemical class 0.000 description 4
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 4
- 125000005842 heteroatom Chemical group 0.000 description 4
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000011976 maleic acid Substances 0.000 description 4
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Chemical group 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 229910052698 phosphorus Chemical group 0.000 description 4
- 239000011574 phosphorus Chemical group 0.000 description 4
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- KJRCEJOSASVSRA-UHFFFAOYSA-N propane-2-thiol Chemical compound CC(C)S KJRCEJOSASVSRA-UHFFFAOYSA-N 0.000 description 4
- 150000005846 sugar alcohols Polymers 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Chemical group 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- BZAZNULYLRVMSW-UHFFFAOYSA-N 2-Methyl-2-buten-3-ol Natural products CC(C)=C(C)O BZAZNULYLRVMSW-UHFFFAOYSA-N 0.000 description 3
- CEBKHWWANWSNTI-UHFFFAOYSA-N 2-methylbut-3-yn-2-ol Chemical compound CC(C)(O)C#C CEBKHWWANWSNTI-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WWZKQHOCKIZLMA-UHFFFAOYSA-N Caprylic acid Natural products CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-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
- 229920002266 Pluriol® Polymers 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 3
- ACIAHEMYLLBZOI-ZZXKWVIFSA-N Unsaturated alcohol Chemical compound CC\C(CO)=C/C ACIAHEMYLLBZOI-ZZXKWVIFSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 3
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- 238000011068 loading method Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013518 molded foam Substances 0.000 description 1
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 description 1
- 235000019960 monoglycerides of fatty acid Nutrition 0.000 description 1
- UCAOGXRUJFKQAP-UHFFFAOYSA-N n,n-dimethyl-5-nitropyridin-2-amine Chemical compound CN(C)C1=CC=C([N+]([O-])=O)C=N1 UCAOGXRUJFKQAP-UHFFFAOYSA-N 0.000 description 1
- DUWWHGPELOTTOE-UHFFFAOYSA-N n-(5-chloro-2,4-dimethoxyphenyl)-3-oxobutanamide Chemical compound COC1=CC(OC)=C(NC(=O)CC(C)=O)C=C1Cl DUWWHGPELOTTOE-UHFFFAOYSA-N 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- QQZOPKMRPOGIEB-UHFFFAOYSA-N n-butyl methyl ketone Natural products CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- WOFPPJOZXUTRAU-UHFFFAOYSA-N octan-4-ol Chemical compound CCCCC(O)CCC WOFPPJOZXUTRAU-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000010292 orthophenyl phenol Nutrition 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 125000005702 oxyalkylene group Chemical group 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229960001639 penicillamine Drugs 0.000 description 1
- SCRKTTJILRGIEY-UHFFFAOYSA-N pentanedioic acid;zinc Chemical compound [Zn].OC(=O)CCCC(O)=O SCRKTTJILRGIEY-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- CCDXIADKBDSBJU-UHFFFAOYSA-N phenylmethanetriol Chemical class OC(O)(O)C1=CC=CC=C1 CCDXIADKBDSBJU-UHFFFAOYSA-N 0.000 description 1
- QCDYQQDYXPDABM-UHFFFAOYSA-N phloroglucinol Chemical class OC1=CC(O)=CC(O)=C1 QCDYQQDYXPDABM-UHFFFAOYSA-N 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 229920000191 poly(N-vinyl pyrrolidone) Polymers 0.000 description 1
- 229920002432 poly(vinyl methyl ether) polymer Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920000582 polyisocyanurate Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- TVDSBUOJIPERQY-UHFFFAOYSA-N prop-2-yn-1-ol Chemical compound OCC#C TVDSBUOJIPERQY-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical class OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- ACTRVOBWPAIOHC-UHFFFAOYSA-N succimer Chemical compound OC(=O)C(S)C(S)C(O)=O ACTRVOBWPAIOHC-UHFFFAOYSA-N 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- ADXGNEYLLLSOAR-UHFFFAOYSA-N tasosartan Chemical compound C12=NC(C)=NC(C)=C2CCC(=O)N1CC(C=C1)=CC=C1C1=CC=CC=C1C=1N=NNN=1 ADXGNEYLLLSOAR-UHFFFAOYSA-N 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- ODBLHEXUDAPZAU-UHFFFAOYSA-N threo-D-isocitric acid Natural products OC(=O)C(O)C(C(O)=O)CC(O)=O ODBLHEXUDAPZAU-UHFFFAOYSA-N 0.000 description 1
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 description 1
- 229960004319 trichloroacetic acid Drugs 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- YJUIKPXYIJCUQP-UHFFFAOYSA-N trizinc;iron(3+);dodecacyanide Chemical compound [Fe+3].[Fe+3].[Zn+2].[Zn+2].[Zn+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] YJUIKPXYIJCUQP-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 229940102001 zinc bromide Drugs 0.000 description 1
- JDLYKQWJXAQNNS-UHFFFAOYSA-L zinc;dibenzoate Chemical compound [Zn+2].[O-]C(=O)C1=CC=CC=C1.[O-]C(=O)C1=CC=CC=C1 JDLYKQWJXAQNNS-UHFFFAOYSA-L 0.000 description 1
- NHXVNEDMKGDNPR-UHFFFAOYSA-N zinc;pentane-2,4-dione Chemical compound [Zn+2].CC(=O)[CH-]C(C)=O.CC(=O)[CH-]C(C)=O NHXVNEDMKGDNPR-UHFFFAOYSA-N 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4866—Polyethers having a low unsaturation value
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/56—Polyacetals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/06—Catalysts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/18—Copolymerisation of aldehydes or ketones
- C08G2/22—Copolymerisation of aldehydes or ketones with epoxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2606—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups
- C08G65/2609—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aliphatic hydroxyl groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2642—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
- C08G65/2645—Metals or compounds thereof, e.g. salts
- C08G65/2663—Metal cyanide catalysts, i.e. DMC's
Definitions
- the present invention describes a process for producing a polyoxymethylene-polyoxyalkylene copolymer comprising the reaction of a polymeric formaldehyde compound of an alkylene oxide and a specific component (X) in the presence of a double metal cyanide (DMC) catalyst. It also relates to polyoxymethylene-polyoxyalkylene copolymer obtainable by such a process and its use for the production of a polyurethane polymer.
- DMC double metal cyanide
- WO2015 / 155094 A1 discloses a process for the production of polyoxymethylene block copolymers, comprising the step of activating the DMC catalyst in the presence of an OH-terminated polymeric formaldehyde compound with a defined amount of alkylene oxide, and optionally subsequent polymerization with alkylene oxides, which may be in the presence of further comonomers takes place.
- the DMC catalyst is activated in the presence of the polymeric formaldehyde starter compound, a portion (based on the total amount of alkylene oxides used in the activation and polymerization) of one or more alkylene oxides being added to activate the DMC catalyst and in a second step one or more alkylene oxides and optionally carbon dioxide are added to the mixture resulting from step (i).
- the DMC catalyst is activated in the first step (i) at an activation temperature (cycle) of 20 to 120 ° C.
- the functionality of the resulting polyoxymethylene block copolymers is limited to the functionality of the polymeric formaldehyde starter compound used by two.
- a process for the preparation of polyoxymethylene-polyalkylene oxide block copolymers comprising the step of polymerizing an alkylene oxide in the presence of an OH-terminated polyoxymethylene polymer as a polymeric formaldehyde starter compound and a catalyst, the polyoxymethylene polymer having a number average molecular weight Mn, from> 1100 g / mol to ⁇ 2300 g / mol ..
- the functionality of the resulting polyoxymethylene block copolymers is also limited here to the functionality of the longer-chain OH-terminated polyoxymethylene starter compound of two.
- polyoxymethylene-polyalkylene oxide block copolymers have molecular weights of more than 6700 g / mol, which are only conditionally suitable for numerous applications of these difunctional hydroxyl group-terminated copolymers with polyisocyanates to form polyurethanes, especially rigid polyurethane foams.
- WO 2020/083814 A1 discloses a method for producing a polyoxymethylene-polyoxyalkylene block copolymer comprising the reaction of a polymeric formaldehyde compound with alkylene oxides in the presence of a double metal cyanide (DMC) - Catalyst and an H-functional starter substance, the theoretical molar mass of the polymeric formaldehyde compound being smaller than the theoretical molar mass of the H-functional starter substance.
- DMC double metal cyanide
- the characteristic of the DMC catalyst is the specific “catch-up” kinetics (M. Ionescu; Chemistry and Technology of Polyols for Polyurethanes 2nd Edition, Rapra Techn.
- the alkoxylation in particular the propoxylation, preferably takes place on the H-functional starter substance with the lower equivalent weight.
- the polymeric formaldehyde compound is primarily alkoxylated instead of the likewise difunctional polyoxymethylene-polyoxyalkylene block copolymer product, which is used as the H-functional starter substance.
- the molar masses and the product properties of the copolymers should be comparable to commercially available polyols, so that direct further processing of these copolymers at least as part of the polyol component to form polyurethanes by reaction with polyisocyanates, especially Polyurethane foaming is possible.
- a sub-task of the present application also consisted in the functionality, in particular the hydroxyl functionality, ie the number of free hydroxyl groups, of the resulting polyoxymethylene-polyoxyalkylene copolymer compared to the functionality of the polymeric formaldehyde compound used, which is almost exclusively two, in a single stage if possible
- the functionality in particular the hydroxyl functionality, ie the number of free hydroxyl groups, of the resulting polyoxymethylene-polyoxyalkylene copolymer compared to the functionality of the polymeric formaldehyde compound used, which is almost exclusively two, in a single stage if possible
- the functionality that is to say the number of terminal hydroxyl groups of the copolymer, should be greater than 2.0, preferably from 2.4 to 6 and particularly preferably from 2.6 to 5.8, in order to allow spatial crosslinking of the copolymer as a polyol component to enable the production of polyurethanes, especially polyurethane foams.
- this variation in the functionality of the resulting copolymer should take place directly during the production of the copolymer.
- This one-step process has mostly Two-stage blending process, i.e.
- the amount of alkylene oxide used to produce the single-phase, homogeneous copolymer should be at most comparable or not increased to the total amount of alkylene oxide (cumulative alkylene oxide substance amount of the at least two polyols) for producing the polyol mixture known from the prior art with the aid of the process according to the invention will.
- the number average molecular weight Mn of the resulting copolymer should also preferably have values in the range from 500 g / mol to 5000 g / mol in order to realize direct further use for polyurethane applications, especially rigid polyurethane foams and flexible polyurethane foams.
- this object is achieved by a process for producing a polyoxymethylene-polyoxyalkylene copolymer comprising the reaction of a polymeric formaldehyde compound of an alkylene oxide and a component (X) in the presence of a double metal cyanide (DMC) catalyst; wherein the polymeric formaldehyde compound has at least one terminal hydroxyl group; wherein component (X) has at least one terminal hydroxyl group, at least one terminal carboxyl group and / or at least one terminal thiol group, preferably at least one terminal hydroxyl group; wherein the theoretical molecular weight of the polymeric formaldehyde compound is greater than the theoretical molecular weight of component (X); where component (X) is not the same as compounds of formula (I), and where n in formula (I) is a natural number from 0 to 100.
- DMC double metal cyanide
- polyoxymethylene copolymers denote polymeric compounds which contain polyoxymethylene units and polyoxyalkylene and / or polyoxyalkylene carbonate units, preferably polyoxyalkylene units.
- the polyoxymethylene-polyoxyalkylene copolymer has a number average molecular weight of 1000 g / mol to 10000 g / mol, preferably from 1000 g / mol to 5000 g / mol, particularly preferably from 1000 g / mol to 3000 g / mol
- the number average molecular weight was determined by means of gel permeation chromatography (GPC) based on DIN 55672-1: "Gel permeation chromatography, part 1 - tetrahydrofuran as eluent", with polystyrene samples of known molecular weight being used for calibration.
- the polyoxymethylene copolymers obtained offer a number of advantages over existing polymers. Certain physical properties such as glass transition temperatures, melting ranges, viscosities and solubilities, etc., can be specifically controlled via the length of the polyoxymethylene blocks in relation to the oligomeric polyoxyalkylene blocks.
- the partial crystallinity in the polyoxymethylene-polyoxyalkylene copolymers according to the invention is typically reduced, which usually also leads to a reduction in glass transition temperatures, melting points and viscosities, etc.
- the presence of additional polyoxyalkylene blocks also typically leads to a significant increase in the chemical and thermal stability.
- the polyoxymethylene-polyoxyalkylene copolymers obtained generally have good solubility in various solvents, can usually be melted easily and without loss of mass or are in the liquid state even at low temperatures.
- the polyoxymethylene-polyoxyalkylene copolymers thus show significantly better processability.
- the proportion of polyoxyalkylene units which are produced from the corresponding alkylene oxides is reduced by the polyoxymethylene proportion, which contributes to the advantageous economy of the product.
- Various physical properties such as glass transition temperatures, melting ranges, viscosities, Solubility, etc. can be specifically controlled for a given molecular weight via the proportion of polyoxymethylene in relation to the polyoxyalkylene, as well as via the molecular weight of the polymeric formaldehyde compound used.
- alkyl generally includes substituents from the group n-alkyl, such as ethyl or propyl, but not methyl, branched alkyl and / or cycloalkyl.
- aryl generally includes substituents from the group of carbo or heteroaryl substituents such as phenyl and / or polynuclear carbo or heteroaryl substituents, optionally with further alkyl groups and / or heteroatoms such as nitrogen, oxygen, silicon, sulfur or phosphorus can be substituted.
- radicals RI, R2, R3 and / or R4 can be linked to one another within a repeating unit in such a way that they form cyclic structures, such as, for example, a cycloalkyl radical that is incorporated into the polymer chain via two adjacent carbon atoms.
- Suitable polymeric formaldehyde compounds for the process according to the invention are in principle those oligomeric and polymeric forms of formaldehyde which have at least one terminal hydroxyl group for reaction with the alkylene oxides and any further comonomers.
- terminal hydroxyl group is understood to mean, in particular, a terminal hemiacetal functionality which results as a structural feature via the polymerization of the formaldehyde.
- the starter compounds oligomers and polymers of formaldehyde of the general formula (II)
- Polymeric formaldehyde compounds suitable for the process according to the invention generally have molecular weights from 62 to 30,000 g / mol, preferably from 62 to 12,000 g / mol, particularly preferably from 242 to 6000 g / mol and very particularly preferably from 242 to 3000 g / mol and comprise from 2 to 1000, preferably from 2 to 400, particularly preferably from 8 to 200 and very particularly preferably from 8 to 100 oxymethylene repeat units n.
- the compounds used in the process according to the invention typically have a functionality (F) of 1 to 3 in In certain cases, however, these can also be more functional, i.e. have a functionality> 3.
- the polymeric formaldehyde compounds which are used for the process according to the invention can be produced by known processes (cf., for example, M. Haubs et. Al., 2012, Polyoxymethylenes, Ullmann's Encyclopedia of Industrial Chemistry; G. Reus et. Al., 2012 , Formaldehyde, ibid.).
- the formaldehyde compounds can in principle also be used in the form of a copolymer in the process according to the invention.
- Further suitable formaldehyde copolymers for the process according to the invention are copolymers of formaldehyde and of trioxane with cyclic and / or linear formals, such as, for example, butanediol formal.
- One advantage of the method according to the invention is, in particular, that polymeric formaldehyde or so-called paraformaldehyde, which is commercially available and inexpensive, can be used directly as a reactant without the need for additional preparatory steps.
- paraformaldehyde is used as the reactant.
- mixtures of polymeric formaldehyde compounds of the formula HO- (CH 2 O) nH, each with different values for n can also be used as starter compounds.
- the used contain Mixtures of polymeric formaldehyde compounds of the formula (II) HO- (CH 2 O) nH at least 1% by weight, preferably at least 5% by weight and particularly preferably at least 10% by weight of polymeric formaldehyde compounds with n> 20.
- the polymeric formaldehyde compound has 2 hydroxyl groups and 8 to 100 repeating oxymethylene units or 3 hydroxyl groups and 8 to 100 repeating oxymethylene units.
- the theoretical molar mass of the polymeric formaldehyde compound is greater than the theoretical molar mass of component (X)
- component (X) is not the same as compounds with the formula (I), where n in formula (I) is a natural number from 0 to 100.
- component (X) according to the invention has at least one terminal hydroxyl group, at least one terminal carboxyl group and / or at least one terminal thiol group, preferably at least one terminal hydroxyl group.
- component (X) has one to six terminal hydroxyl groups, one to six terminal carboxyl groups and / or one to six terminal thiol groups, preferably two to six terminal hydroxyl groups, two to six terminal carboxyl groups and / or two to six terminal thiol groups, particularly preferably three to six terminal hydroxyl groups, three to six terminal carboxyl groups and / or three to six terminal thiol groups.
- component (X) has three to six terminal hydroxyl groups such as, for example, 1,1,1-trimethylolpropane, glycerol, pentaerythritol, sorbitol, sucrose, xylitol.
- the number of terminal hydroxyl groups, terminal carboxyl groups and / or terminal thiol groups of component (X) is not equal to the number of terminal hydroxyl groups of the polymeric formaldehyde compound. This increases the functionality of the resulting polyoxymethylene-polyoxyalkylene copolymer can be set in a targeted manner. Specifically for three to six terminal hydroxyl groups, three to six terminal carboxyl groups and / or three to six terminal thiol groups of component (X), a functionality, i.e.
- the number of terminal hydroxyl groups, greater than 2.0 can be used for the resulting polyoxymethylene-polyoxyalkylene copolymer preferably from 2.4 to 6 and particularly preferably from 2.6 to 5.8, which for subsequent applications of this polyoxymethylene-polyoxyalkylene copolymer, for example in the production of polyurethanes (PU), such as rigid or flexible polyurethane foams by reacting the polyoxymethylene -Polyoxyalkylene copolymers with a polyisocyanate are essential in order to be able to provide spatially crosslinked polyurethanes, especially PU foams.
- PU polyurethanes
- component (X) is an OH-functional starter substance (1-1), an SH-functional starter substance (1-2), and / or a COOH-functional starter substance (1-3), preferably an OH- functional starter substance (1-1).
- an OH-functional starter substance (1-1) is a compound with at least one free (terminal) hydroxyl group, an SH-functional starter substance (1-2) with at least one thiol group, and / or a COOH-functional starter substance (1 -3) to be understood as having at least one free carboxyl group.
- one or more compounds can be selected from the group comprising water or monohydric or polyhydric alcohols, monohydric or polyhydric carboxylic acids, hydroxycarboxylic acids, hydroxyesters, polyether polyols, polyester polyols, polyester ether polyols, polyether carbonate polyols, polyether ester carbonate polyols,
- Poly carbonate polyols polycarbonates, polytetrahydrofuran (e.g. PolyTHF® from BASF, such as PolyTHF® 250, 650S, 1000, 1000S, 1400, 1800, 2000), polyacrylate polyols, castor oil, the mono or diglyceride of ricinoleic acid, monoglycerides of fatty acids, chemically modified mono -, di- and / or triglycerides of fatty acids, and C1-C24 alkyl fatty acid esters, which contain on average at least 2 OH groups per molecule.
- PolyTHF® polytetrahydrofuran
- the C1-C23 alkyl fatty acid esters which on average contain at least 2 OH groups per molecule, are commercial products such as Uupranol Balance® (BASF AG), Merginol® types (Hobum Oleochemicals GmbH), Sovermol® types (from Cognis GmbH & Co. KG) and Soyol®TM types (from USSC Co.).
- BASF AG Uupranol Balance®
- Merginol® types Hobum Oleochemicals GmbH
- Sovermol® types from Cognis GmbH & Co. KG
- Soyol®TM types from USSC Co.
- component (X) it is possible to use monofunctional starter substances such as alcohols as OH-functional starter substance (1-1), thiols as SH-functional starter substance (1-2) and carboxylic acids as COOH-functional starter substance (1-3).
- monofunctional alcohols can be used: methanol, ethanol, ethenol, 1-propanol, 2-propanol, 2-propenol, 1-butanol, 2-butanol, tert-butanol, 3-buten-1-ol, 3-butyne-1 -ol, 2-methyl-3-buten-2-ol, 2-methyl-3-butyn-2-ol, propargyl alcohol, 2-methyl-2-propanol, 1-tert-butoxy-2-propanol, 1-pentanol , 2-pentanol, 3- Pentanol, 1-hexanol, 2-hexanol, 3-hexanol, 1-heptanol, 2-heptanol, 3-heptanol, 1-
- Suitable polyhydric alcohols as OH-functional starter substances (1-1) with at least two terminal hydroxyl groups are, for example, dihydric alcohols (such as, for example, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,3-propanediol, 1,4-butanediol, 1,4-butenediol , 1,4-butynediol, neopentyl glycol, 1,5-pentantanediol, methylpentanediols (such as 3-methyl-1,5-pentanediol), 1,6-hexanediol; 1,8-octanediol, 1,10-decanediol, 1, 12-dodecanediol, bis (2-hydroxyethyl) terephthalate, bis (hydroxymethyl) cyclohexanes (such as 1,4-bis (hydroxymethyl) cyclohexane),
- SH-functional starter substances (1-2) for example, acetylcysteine, dimercaptosuccinic acid, dimercaptopropane sulfonic acid, ethanethiol (ethyl mercaptan), dithiothreitol (DTT), dithioerythritol (DTE), cysteine, penicillamine, 1-propanethiol, 2-propanethiol, 2-propanethiol, glutathione -Mercaptoethanesulfonate sodium, methanethiol (methyl mercaptan) and thiophenol.
- acetylcysteine dimercaptosuccinic acid
- dimercaptopropane sulfonic acid dimercaptopropane sulfonic acid
- ethanethiol ethyl mercaptan
- DTT dithiothreitol
- DTE dithioerythritol
- Methanoic acid, ethanoic acid, propanoic acid, butanoic acid, pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, lactic acid, stearic acid, palmitic acid, oleic acid, linoleic acid, linolenic acid, benzoic acid, acrylic acid are suitable as monovalent carboxylic acids as COOH-functional starter substance (1-3) with a free carboxyl group , Fluoroacetic acid, chloroacetic acid, bromoacetic acid, iodoacetic acid, difluoroacetic acid, trifluoroacetic acid, dichloroacetic acid, trichloroacetic acid, oleic acid, salicylic acid and benzoic acid.
- mixtures of fatty acid / fatty alcohol can be used, preferably C10-C18.
- Polyvalent carboxylic acids as COOH-functional starter substance (1-3) with at least two carboxy groups are, according to the invention, one or more compounds selected from the group consisting of oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, trimesic acid, fumaric acid, maleic acid , 1,10-decanedicarboxylic acid, 1,12-dodecanedicarboxylic acid, phthalic acid, isophthalic acid, terephthalic acid, pyromellitic acid and trimellitic acid.
- Suitable hydroxycarboxylic acids can also be used as component (X), for example ricinoleic acid, glycolic acid, lactic acid, 3-hydroxypropionic acid, malic acid, citric acid, mandelic acid, tartronic acid, tartaric acid, mevalonic acid, 4-hydroxybutyric acid, salicylic acid, 4-hydroxybenzoic acid and isocitric acid .
- the OH-functional starter substances (1-1) can also be selected from the substance class of the polyether polyols, in particular those with a molecular weight Mn in the range from 50 to 4000 g / mol, preferably from 50 to 2000 g / mol and particularly preferably from 50 to 1000 g / mol.
- These can be random copolymers, gradient copolymers, alternating or block copolymers of ethylene oxide and propylene oxide.
- Suitable polyether polyols built up from repeating propylene oxide and / or ethylene oxide units are, for example, the Desmophen®, Acclaim®, Arcol®, Baycoll®, Bayfill®, Bayflex®, Baygal®, PET® and polyether polyols from Covestro AG (such as Desmophen® 3600Z, Desmophen® 1900U, Acclaim® Polyol 2200, Acclaim® Polyol 40001, Arcol® Polyol 1004, Arcol® Polyol 1010, Arcol® Polyol 1030, Arcol® Polyol 1070, Baycoll® BD 1110, Bayfill® VPPU 0789, Baygal® K55, PET® 1004, Polyether® S 180).
- Covestro AG such as Desmophen® 3600Z, Desmophen® 1900U, Acclaim® Polyol 2200, Acclaim® Polyol 40001, Arcol® Polyol 1004, Arcol® Polyol 1010, Arcol® Polyol 1030, Arcol
- suitable homopolyethylene oxides are, for example, the Pluriol® E grades from BASF SE
- suitable homopolypropylene oxides are, for example, the Pluriol® P grades from BASF SE
- suitable mixed copolymers of ethylene oxide and propylene oxide are, for example, Pluronic® PE or Pluriol® RPE - trademarks of BASF SE.
- the OH-functional starter substances (1-1) can also be selected from the substance class of polyester polyols, in particular those with a molecular weight Mn in the range from 50 to 4000 g / mol, preferably from 50 to 2000 g / mol and particularly preferably from 100 to 1000 g / mol. At least difunctional polyesters can be used as polyester polyols. Polyester polyols preferably consist of alternating acid and alcohol units.
- Acid components that can be used are, for example, succinic acid, succinic anhydride, maleic acid, maleic anhydride, adipic acid, phthalic anhydride, phthalic acid, isophthalic acid, terephthalic acid, tetrahydrophthalic acid, tetrahydrophthalic anhydride, hexahydrophthalic anhydride or mixtures of the named acid anhydrides.
- Diethylene glycol, dipropylene glycol, trimethylolpropane, glycerol, pentaerythritol or mixtures of the alcohols mentioned are used.
- the resulting polyester polyols have terminal hydroxyl and / or carboxy groups.
- polycarbonate diols can be used as OH-functional starter substances (1-1), in particular those with a molecular weight Mn in the range from 50 to 4000 g / mol, preferably from 50 to 2000 g / mol and particularly preferably from 50 to 1000 g / mol, which are produced, for example, by reacting phosgene, dimethyl carbonate, diethyl carbonate or diphenyl carbonate and difunctional alcohols or polyester polyols or polyether polyols.
- polycarbonates can be found, for example, in EP-A 1359177.
- the Desmophen® C grades from Covestro AG such as Desmophen® C 1100 or Desmophen® C 2200, can be used as polycarbonate diols.
- polyether carbonate polyols e.g. cardy on® polyols from Covestro
- polycarbonate polyols e.g. Converge® polyols from Novomer / Saudi Aramco, NEOSPOL polyols from Repsol etc.
- polyether ester carbonate polyols can be used as OH- functional starter compounds (1-1) are used.
- polyether carbonate polyols, polycarbonate polyols and / or polyether ester carbonate polyols can be obtained by reacting alkylene oxides, preferably ethylene oxide, propylene oxide or mixtures thereof, optionally further co-monomers with CO 2 in the presence of a further H-functional starter compound and using catalysts.
- catalysts include double metal cyanide catalysts (DMC catalysts) and / or
- Metal complex catalysts for example based on the metals zinc and / or cobalt, such as, for example, zinc glutarate catalysts (described, for example, in MH Chisholm et al., Macromolecules 2002, 35, 6494), so-called zinc diiminate catalysts (described, for example, in SD Allen, J. Am. Chem. Soc. 2002, 124, 14284) and so-called cobalt-salen catalysts (described, for example, in US Pat. No. 7,304,172 B2, US 2012/0165549 A1) and / or manganese-salen complexes.
- zinc glutarate catalysts described, for example, in MH Chisholm et al., Macromolecules 2002, 35, 6494
- zinc diiminate catalysts described, for example, in SD Allen, J. Am. Chem. Soc. 2002, 124, 14284
- cobalt-salen catalysts described, for example, in US Pat. No.
- the OH-functional starter substances (1-1) generally have an OH functionality (ie number of H atoms active for the polymerization per molecule) of 1 to 8, preferably from 2 to 6 and particularly preferably from 2 to 4.
- the OH-functional starter substances (1-1) are used either individually or as a mixture of at least two OH-functional starter substances (1-1).
- Preferred OH-functional starter substances (1-1) are alcohols with a composition according to the general formula (III),
- alcohols according to formula (1) are ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,8-octanediol, 1,10-decanediol and 1,12-dodecanediol.
- Further preferred OH-functional starter substances (1-1) are neopentyl glycol, trimethylolpropane, glycerol and pentaerythritol.
- OH-functional starter substances (1-1) are diethylene glycol, dipropylene glycol, castor oil, sorbitol and polyether polyols, built up from repeating polyalkylene oxide units.
- the OH-functional starter substance (1-1) is one or more compounds selected from the group consisting of ethylene glycol, propylene glycol, 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 1, 5-pentanediol, 2-methylpropane-1,3-diol, neopentyl glycol, 1,6-hexanediol, diethylene glycol, dipropylene glycol, glycerine, trimcthyloHpropane.
- di- and trifunctional polyether polyols the polyether polyol being composed of a di- or tri-H-functional starter substance and propylene oxide or a di- or tri-H-functional starter substance, propylene oxide and ethylene oxide.
- the polyether polyols preferably have an OH functionality of 2 to 4 and a molecular weight Mn in the range from 62 to 4500 g / mol and in particular a molecular weight Mn in the range from 62 to 3000 g / mol.
- the OH functionality of the OH-functional starter substance (1-1) as component (X) is from 3 to 6 and with a molecular weight Mn of 50 g / mol to 2000 g / mol, preferably with OH functionality from 2 to 4 and a molecular weight Mn from 50 g / mol to 1000 g / mol.
- component (X) is one or more compound (s) and is selected from the group consisting of ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, methylpropylene glycol, dipropylene glycol, polypropylene glycol, 1,3-butanediol, 1, 4-butanediol 1,1,1 -trimethylolpropane, glycerine, pentaerythritol, sorbitol, sucrose, xylitol, 1,2-propanediol, 1,3-propanediol, bisphenol A, 1,2,3- trihydroxybenzenes, 1,2,4- Trihydroxybenzenes, 1,3,5-trihydroxybenzenes, 1, 2,4,5-tetrahydroxybenzene, trihydroxytoluenes (all isomers), benzenehexol, hydroxy-quinones, succinic acid, adipic acid, glutaric acid,
- component (X) is one or more compound (s) and is selected from the group consisting of ethylene glycol, diethylene glycol, polyethylene glycol, methylpropylene glycol, dipropylene glycol, polypropylene glycol, 1,3-butanediol, 1,4- Butanediol 1,1,1-trimethylolpropane, glycerol, pentaerythritol, sorbitol, sucrose, xylitol, 1,2-propanediol, 1,3-propanediol, preferably polypropylene glycol, 1,1,1-trimethylolpropane, glycerol and sorbitol.
- compound (s) is selected from the group consisting of ethylene glycol, diethylene glycol, polyethylene glycol, methylpropylene glycol, dipropylene glycol, polypropylene glycol, 1,3-butanediol, 1,4- Butanediol 1,1,1-tri
- the mole fraction of component (X) is from 0.5 mol% to 95 mol%, preferably from 1 mol% to 90 mol% and particularly preferably from 10 mol% to 85 mol% % based on the sum of the amounts of substance of the polymeric formaldehyde compound and component (X).
- component (X) has three to six terminal hydroxyl groups and component (X) is from 0.5 mol% to 95 mol%, preferably from 1 mol% to 90 mol% and particularly preferably from 10 mol% to 85 mol% based on the sum of the amounts of moles of the polymeric formaldehyde compound.
- epoxide alkylene oxide epoxide
- R 1 , R 2 , R 3 and R 4 are independently hydrogen or an optionally additional heteroatoms such as nitrogen, oxygen, silicon, sulfur or phosphorus-containing alkyl or aryl radical and can optionally be linked to one another so that they Form cyclic structures, such as a cycloalkylene oxide.
- alkylene oxides can in principle be used which are suitable for the polymerization in the presence of a DMC catalyst. If different alkylene oxides are used, these can be metered in either as a mixture or one after the other. In the case of the latter metering method, the polyether chains of the polyoxymethylene-polyoxyalkylene copolymer obtained in this way can in turn also have a copolymer structure.
- alkylene oxides (epoxides) with 2-24 carbon atoms can be used for the process according to the invention.
- the alkylene oxides with 2-24 carbon atoms are, for example, one or more compounds selected from the group consisting of ethylene oxide, propylene oxide, 1-butene oxide, 2,3-butene oxide, 2-methyl-1,2-propene oxide (Isobutene oxide), 1-pentene oxide, 2,3-pentene oxide, 2-methyl-1,2-butene oxide, 3-methyl-1,2-butene oxide, 1-hexene oxide, 2,3-hexene oxide, 3,4-hexene oxide, 2-methyl-1,2-pentene oxide, 4-methyl-1,2-pentene oxide, 2-ethyl-1,2-butene oxide, 1-heptene oxide, 1-octene oxide, 1-nonene oxide, 1-decene oxide, 1-undecene oxide, 1- dodecene oxide, 4-methyl-1,2-pentene oxide, butadiene monoxid
- the epoxide of the general formula (I) is preferably a terminal epoxide, where RI, R2 and R3 stand for hydrogen and R4 can be hydrogen, an alkyl or aryl radical containing optionally additional heteroatoms such as nitrogen, oxygen, silicon, sulfur or phosphorus and can differ in different repetition units.
- the alkylene oxide is one or more compound (s) and is selected from the group consisting of ethylene oxide, propylene oxide, styrene oxide and cyclohexene oxide, preferably ethylene oxide and propylene oxide and particularly preferably propylene oxide.
- a suspension medium is used, the suspension medium used preferably not containing any H-functional groups. All polar-aprotic, weakly polar-aprotic and non-polar-aprotic solvents, which in each case contain no H-functional groups, are suitable as suspending agents without H-functional groups. A mixture of two or more of these suspending agents can also be used as suspending agents.
- the suspension medium that does not contain any H-functional groups is one or more compound (s) and is selected from the group consisting of 4-methyl-2-oxo-1,3-dioxolane, 1,3 -Dioxolan-2-one, acetone, methyl ethyl ketone, acetonitrile, nitromethane, DimcthyNsulf ⁇ oxide.
- a suspension medium which contains H-functional groups is placed in the reactor together with DMC catalyst.
- the suspension medium which contains bi-functional groups containing the DMC catalyst is a polyoxymethylene-polyoxyalkylene copolymer obtainable from a previous production process containing an activated DMC catalyst. This saves possible separation steps in comparison to the use of a suspension medium which does not have any H-functional groups, which results in a simpler and more efficient process.
- the double metal cyanide compounds that can preferably be used in the process according to the invention are the reaction products of water-soluble metal salts and water-soluble metal cyanide salts.
- Double metal cyanide (DMC) catalysts for use in the homopolymerization of alkylene oxides are known in principle from the prior art (see, for example, US Pat. No. 3,404,109, US Pat. No. 3,829,505, US Pat. No. 3,941,849 and US Pat. No. 5) 158 922).
- DMC catalysts which are described, for example, in US Pat. No. 5,470,813, EP-A700949, EP-A743 093, EP-A761 708, WO 97/40086, WO 98/16310 and WO 00/47649, have a very high activity and enable the production of polyether carbonates with very low catalyst concentrations.
- a typical example are the highly active DMC catalysts described in EP-A 700 949 which, in addition to a double metal cyanide compound (eg zinc hexacyanocobaltate (III)) and an organic complex ligand (eg / -butanol), also contain a polyether with a number average molecular weight greater contained than 500 g / mol.
- a double metal cyanide compound eg zinc hexacyanocobaltate (III)
- an organic complex ligand eg / -butanol
- the DMC catalysts which can be used according to the invention are preferably obtained by (1.) in the first step reacting an aqueous solution of a metal salt with the aqueous solution of a metal cyanide salt in the presence of one or more organic complex ligands, e.g. an ether or alcohol,
- the solid obtained is dried at temperatures of generally 20-120 ° C. and at pressures of generally 0.1 mbar to normal pressure (1013 mbar), and in the first step or immediately after the precipitation of the double metal cyanide compound (second step), one or more organic complexing ligands, preferably in excess (based on the double metal cyanide compound) and, if appropriate, further complexing components are added.
- the double metal cyanide compounds contained in the DMC catalysts which can be used according to the invention are the reaction products of water-soluble metal salts and water-soluble metal cyanide salts.
- an aqueous zinc chloride solution preferably in excess based on the metal cyanide salt
- potassium hexacyanocobaltate are mixed and then dimethoxyethane (glyme) or / butanol (preferably in excess, based on zinc hexacyanocobaltate) is added to the suspension formed.
- Metal salts suitable for preparing the double metal cyanide compounds preferably have a composition according to the general formula (V),
- M is selected from the metal cations Zn 2+ , Fe 2+ , Ni 2+ , Mn 2+ , Co 2+ , Sr 2+ , Sn 2+ , Pb 2+ and, Cu 2+ , M is preferably Zn 2+ , Fe 2+ , Co 2+ or Ni 2+ ,
- M is selected from the metal cations Fe 3+ , Al 3+ , Co 3+ and Cr 3+ ,
- M is selected from the metal cations Mo 4+ , V 4+ and W 4+ ,
- M is selected from the metal cations Mo 6+ and W 6+ ,
- halides i.e. fluoride, chloride, bromide, iodide
- hydroxide sulfate, carbonate, cyanate, thiocyanate, isocyanate, isothiocyanate, carboxylate, oxalate and nitrate
- t is 3 when
- suitable metal salts are zinc chloride, zinc bromide, zinc iodide, zinc acetate, zinc acetylacetonate, zinc benzoate, zinc nitrate, iron (II) sulfate, iron (II) bromide, iron (II) chloride, iron (III) chloride, cobalt (II) chloride, Cobalt (II) thiocyanate, nickel (II) chloride and nickel (II) nitrate. It Mixtures of different metal salts can also be used.
- Metal cyanide salts suitable for preparing the double metal cyanide compounds preferably have a composition according to the general formula (IX)
- M ' is selected from one or more metal cations from the group consisting of Fe (II), Fe (III), Co (II), Co (III), Cr (II), Cr (III), Mn (II), Mn ( III), Ir (III), Ni (II), Rh (III), Ru (II), V (IV) and V (V), M 'is preferably one or more metal cations from the group consisting of Co (II), Co (III), Fe (II), Fe (III), Cr (III), Ir (III) and Ni (II),
- Y is selected from one or more metal cations from the group consisting of alkali metal (ie, Li + , Na + , K + , Rb + ) and alkaline earth metal (ie, Be 2+ , Mg 2+ , Ca 2+ , Sr 2+ , Ba 2+ ),
- A is selected from one or more anions from the group consisting of halides (ie fluoride, chloride, bromide, iodide), hydroxide, sulfate, carbonate, cyanate, thiocyanate, isocyanate, isothiocyanate, carboxylate, azide, oxalate or nitrate and a, b and c are integer numbers, the values for a, b and c being selected in such a way that the metal cyanide salt is electro-neutral; a is preferably 1, 2, 3 or 4; b is preferably 4, 5 or 6; c preferably has the value 0.
- halides ie fluoride, chloride, bromide, iodide
- hydroxide sulfate
- carbonate cyanate
- thiocyanate isocyanate
- isothiocyanate carboxylate
- azide oxalate or nitrate
- a, b and c are integer numbers,
- suitable metal cyanide salts are sodium hexacyanocobaltate (III), potassium hexacyanocobaltate (III), potassium hexacyanoferrate (II), potassium hexacyanoferrate (III), calcium hexacyanocobaltate (III) and lithium hexacyanocobaltate (III).
- Preferred double metal cyanide compounds which are contained in the DMC catalysts which can be used according to the invention are compounds with compositions according to the general formula (IX)
- suitable double metal cyanide compounds a) are zinc hexacyanocobaltate (III), zinc hexacyanoiridate (III), zinc hexacyanoferrate (III) and cobalt (II) hexacyanocobaltate (III).
- suitable double metal cyanide compounds can be found, for example, in US Pat. No. 5,158,922 (column 8, lines 29-66). Zinc hexacyanocobaltate (III) can be used with particular preference.
- organic complex ligands that can be added in the preparation of the DMC catalysts are described, for example, in US Pat. No. 5,158,922 (see in particular column 6, lines 9 to 65), US Pat. No. 3,404,109, US Pat. No. 3,829,505, US Pat. No. 3,941,849, EP-A 700 949, EP-A 761 708, JP 4 145 123, US 5 470 813, EP-A 743 093 and WO-A 97/40086).
- water-soluble, organic compounds with heteroatoms, such as oxygen, nitrogen, phosphorus or sulfur which can form complexes with the double metal cyanide compound, are used as organic complex ligands.
- Preferred organic complex ligands are alcohols, aldehydes, ketones, ethers, esters, amides, ureas, nitriles, sulfides and mixtures thereof.
- Particularly preferred organic complex ligands are aliphatic ethers (such as dimethoxyethane), water-soluble aliphatic alcohols (such as ethanol, isopropanol, n-butanol, isobutanol, sec-butanol, tert-butanol, 2-methyl-3-buten-2-ol and 2-methyl-3-butyn-2-ol), compounds that contain both aliphatic or cycloaliphatic ether groups and aliphatic hydroxyl groups (such as ethylene glycol mono-tert-butyl ether, diethylene glycol mono-tert-butyl ether, tripropylene glycol mono- methyl ether and 3-methyl-3-oxetane-methanol).
- Highly preferred organic complex ligands are selected from one or more compounds from the group consisting of dimethoxyethane, tert-butanol, 2-methyl-3-buten-2-ol, 2-methyl-3-butyn-2-ol, ethylene glycol mono-tert- butyl ether and 3-methyl-3-oxetane-methanol.
- one or more complex-forming component (s) from the compound classes of polyethers, polyesters, polycarbonates, polyalkylene glycol sorbitan esters, polyalkylene glycol glycidyl ethers, polyacrylamide, poly (acrylamide-co-acrylic acid), polyacrylic acid, poly (acrylic acid) are used in the production of the DMC catalysts that can be used according to the invention.
- polyacrylonitrile polyalkyl acrylates, polyalkyl methacrylates, polyvinyl methyl ether, polyvinyl ethyl ether, polyvinyl acetate, polyvinyl alcohol, poly-N-vinylpyrrolidone, poly (N-vinylpyrrolidone-co-acrylic acid), polyvinyl methyl ketone, poly (4-vinylphenol), poly (acrylic acid-co -styrene), oxazoline polymers, poly alkylenimines, maleic and maleic anhydride copolymers, hydroxyethyl cellulose and poly acetals, or the glycidyl ethers, glycosides, carboxylic acid esters of polyhydric alcohols, bile acids or their salts, esters or amides, cyclodextrins, phosphoric acid esters, or saturated carboxylic acids ionic surface or interface act iven connections are used.
- the aqueous solutions of the metal salt are preferably used in the first step in a stoichiometric excess (at least 50 mol%) based on the metal cyanide salt.
- the metal cyanide salt e.g. potassium hexacyanocobaltate
- the organic Complex ligands eg tert-butanol
- the organic complex ligand can be present in the aqueous solution of the metal salt and / or the metal cyanide salt, or it is added directly to the suspension obtained after precipitation of the double metal cyanide compound. It has proven advantageous to mix the aqueous solutions of the metal salt and the metal cyanide salt and the organic complex ligand with vigorous stirring.
- the suspension formed in the first step is then treated with a further complex-forming component.
- the complex-forming component is preferably used in a mixture with water and organic complex ligands.
- a preferred method for carrying out the first step i.e. the preparation of the suspension
- the solid i.e. the precursor of the catalyst
- the solid can be isolated from the suspension by known techniques, such as centrifugation or filtration.
- the isolated solid is then washed in a third process step with an aqueous solution of the organic complex ligand (e.g. by resuspension and subsequent renewed isolation by filtration or centrifugation).
- an aqueous solution of the organic complex ligand e.g. by resuspension and subsequent renewed isolation by filtration or centrifugation.
- water-soluble by-products such as potassium chloride
- the amount of the organic complex ligand in the aqueous washing solution is preferably between 40 and 80% by weight, based on the total solution.
- a further complex-forming component is added to the aqueous washing solution, preferably in the range between 0.5 and 5% by weight, based on the total solution.
- washing is preferably carried out with an aqueous solution of the unsaturated alcohol (for example by resuspending and subsequent re-isolation by filtration or centrifugation) in order to remove, for example, water-soluble by-products, such as potassium chloride, from the according to the invention to remove usable catalyst.
- the amount of unsaturated alcohol in the aqueous washing solution is particularly preferably between 40 and 80% by weight, based on the total solution of the first washing step.
- the first washing step is repeated once or more times, preferably once to three times, or preferably a non-aqueous solution, such as a Mixture or solution of unsaturated alcohol and other complex-forming components (preferably in the range between 0.5 and 5% by weight, based on the total amount of washing solution of step (3.-2)), used as washing solution and the solid is used once or several times , preferably washed once to three times.
- a non-aqueous solution such as a Mixture or solution of unsaturated alcohol and other complex-forming components (preferably in the range between 0.5 and 5% by weight, based on the total amount of washing solution of step (3.-2)
- the isolated and optionally washed solid can then, optionally after pulverization, be dried at temperatures of 20-100 ° C. and at pressures from 0.1 mbar to normal pressure (1013 mbar).
- the double metal cyanide (DMC) catalyst is preferably used in a calculated amount of 100 to 3000 ppm, preferably 120 to 2500 ppm, particularly preferably 150 to 2200, based on the sum of the masses of the polymeric formaldehyde compound and the alkylene oxide. If there is a high proportion of DMC catalyst, the heavy metals must be separated off before further conversion to polyurethane. Below 100 ppm of the double metal cyanide (DMC) catalyst, no more catalytic conversion can be observed.
- suspension media with H-functional groups or suspension media without H-functional groups are used.
- the method according to the invention comprises the following steps:
- the alkylene oxide is metered into the reactor in stages or continuously during the reaction.
- the suspending agent in step (a) does not contain any H-functional groups.
- a suspension medium which does not contain any H-functional groups is preferably initially introduced into the reactor together with the DMC catalyst, and no polymeric formaldehyde compound is initially introduced into the reactor.
- a suspension medium which does not contain any H-functional groups and, in addition, a portion of the polymeric formaldehyde compound and, if appropriate, DMC catalyst is added to the resulting mixture of suspending agent and DMC catalyst at a temperature of 40 to 120 ° C., preferably 50 to 100 ° C. and particularly preferably 60 to 90 ° C.
- Carbon dioxide mixture or carbon dioxide introduced and at the same time a reduced pressure (absolute) of 10 mbar to 800 mbar, particularly preferably of 50 mbar to 200 mbar, applied.
- the resulting mixture of suspending agent and DMC catalyst is at a temperature of 40 to 120 ° C, preferably 50 to 100 ° C and particularly preferably 60 to 90 ° C at least once, preferably three times with 1.5 bar up to 10 bar (absolute), particularly preferably 3 bar to 6 bar (absolute) of an inert gas (for example argon or nitrogen), an inert gas-carbon dioxide mixture or carbon dioxide and then each time the overpressure is reduced to about 1 bar (absolute).
- an inert gas for example argon or nitrogen
- the DMC catalyst can be added in solid form or as a suspension in a suspending agent or in a mixture of at least two suspending agents.
- step (a) in step (a)
- the temperature of the suspending agent or the mixture of at least two suspending agents is brought to 40 to 120 ° C., preferably from 50 to 100 ° C. and particularly preferably from 60 to 90 ° C. and / or the pressure in the reactor to less than 500 mbar, preferably 5 mbar to 100 mbar, with an inert gas stream (for example of argon or nitrogen), an inert gas-carbon dioxide stream or a carbon dioxide stream being passed through the reactor, the double metal cyanide catalyst being used as the suspension medium or for Mixture of at least two suspending agents are added in step (aI) or immediately thereafter in step (a-II), and the suspending agent does not contain any H-functional groups.
- an inert gas stream for example of argon or nitrogen
- an inert gas-carbon dioxide stream or a carbon dioxide stream being passed through the reactor
- the double metal cyanide catalyst being used as the suspension medium or for Mixture of at least two suspending agents are added in step (aI) or immediately thereafter in step (a-
- Step (ß) is used to activate the DMC catalyst.
- This step can optionally be carried out under an inert gas atmosphere, under an atmosphere of an inert gas-carbon dioxide mixture or under a carbon dioxide atmosphere.
- Activation in the context of this invention denotes a step in which a portion of the alkylene oxide compound at temperatures from 20 ° C to 120 ° C, preferably from 35 ° C to 105 ° C and particularly preferably from 50 ° C to 90 ° C to form the mixture from step (a) is added to the DMC catalyst suspension and then the addition of the alkylene oxide compound is interrupted, with a subsequent exothermic chemical reaction generating heat that can lead to a temperature spike (“hotspot”), as well as a pressure drop in the reactor is observed due to the conversion of alkylene oxide and possibly CO2.
- hotspot temperature spike
- the process step of activation is the period of time from the addition of the partial amount of alkylene oxide compound, optionally in the presence of CO 2, to the DMC catalyst until the development of heat occurs.
- the partial amount of alkylene oxide compound can be added to the DMC catalyst in several individual steps, if appropriate in the presence of CO 2, and the addition of the alkylene oxide compound can then be interrupted in each case.
- the process step of activation comprises the time span from the addition of the first partial amount of alkylene oxide compound, optionally in the presence of CO 2, to the DMC catalyst until the development of heat occurs after the addition of the last partial amount of alkylene oxide compound.
- the activation step can be preceded by a step for drying the DMC catalyst and optionally the polymeric formaldehyde compound at elevated temperature and / or reduced pressure, optionally with an inert gas being passed through the reaction mixture.
- One or more alkylene oxides can in principle be metered in in different ways. Dosing can be started from the vacuum or with a pre-selected pre-pressure.
- the admission pressure is preferably set by introducing an inert gas (such as nitrogen or argon) or carbon dioxide, the pressure (absolute) being 5 mbar to 100 bar, preferably 10 mbar to 50 bar and preferably 20 mbar to 50 bar.
- the amount of one or more alkylene oxides used in the activation in step ( ⁇ ) is 0.1 to 25.0% by weight, preferably 1.0 to 20.0% by weight, particularly preferably 2, 0 to 16.0% by weight (based on the amount of suspending agent used in step (a)).
- the alkylene oxide can be added in one step or in portions in several partial amounts. After a portion of the alkylene oxide compound has been added, the addition of the alkylene oxide compound is preferably interrupted until the evolution of heat occurs and only then is the next portion of the alkylene oxide compound added.
- step (a) is followed by step ( ⁇ ), a partial amount of alkylene oxide at a temperature of 20 ° C. to 120 ° C. being preferred for the mixture from step (a) in step ( ⁇ ) from 35 ° C to 105 ° C and particularly preferably from 50 ° C to 90 ° C, and then the addition of the alkylene oxide compound is interrupted.
- component (X) is metered in continuously or stepwise, preferably continuously, in step (g).
- the polymeric formaldehyde compound and the alkylene oxide are metered in continuously or in stages, preferably continuously.
- the reaction in step (g) takes place at a temperature from 20 ° C to 130 ° C, preferably from 40 ° C to 120 ° C and particularly preferably from 60 ° C to 110 ° C.
- the metering of one or more polymeric formaldehyde compound (s), one or more alkylene oxide (s), one or more component (s) (X) and optionally also the carbon dioxide can be carried out simultaneously or sequentially (in portions), for example the total amount of carbon dioxide that Amount of polymeric formaldehyde compound, component (X) and / or the amount of alkylene oxides dosed in step (g) can be added all at once or continuously.
- the term "continuously” used here can be defined as the mode of adding a reactant in such a way that a concentration of the reactant that is effective for the copolymerization is maintained, i.e. for example the metering can be carried out at a constant metering rate, with a varying metering rate or in portions.
- the component (X) and / or the polymeric formaldehyde compound can gradually or gradually increase or decrease the gas pressure, for example the CCE pressure or the inert gas pressure, or to keep it the same.
- the total pressure is preferably kept constant during the reaction by adding more inert gas or carbon dioxide, for example.
- One or more alkylene oxide (s), one or more component (s) (X) and / or the one or more polymeric formaldehyde compound (s) are metered in simultaneously or sequentially with the metering in of carbon dioxide. It is possible to meter in the alkylene oxide at a constant metering rate or to increase or decrease the metering rate gradually or stepwise or to add the alkylene oxide in portions.
- the alkylene oxide is preferably added to the reaction mixture at a constant metering rate. If several alkylene oxides are used to synthesize the polyoxymethylene-polyoxyalkylene copolymers, the alkylene oxides can be metered in individually or as a mixture.
- the metering of the alkylene oxides or the polymeric formaldehyde compound and / or the component (X) can take place simultaneously or sequentially via separate meterings (additions) in each case or via one or more meterings, the alkylene oxides or the polymeric formaldehyde compounds and / or the component ( X) can be dosed individually or as a mixture.
- the metering in of the one or more polymeric formaldehyde compound (s) and optionally the component (X) is preferably the polymeric one in step (g) Formaldehyde compound (s) and component (X) ended before the addition of the alkylene oxide.
- an excess of carbon dioxide is used based on the calculated amount of built-in carbon dioxide in the polyether carbonate polyol, since an excess of carbon dioxide is advantageous due to the inertia of carbon dioxide.
- the amount of carbon dioxide can be determined via the total pressure under the respective reaction conditions. The range from 0.01 to 120 bar, preferably 0.1 to 110 bar, particularly preferably from 1 to 100 bar, has proven to be advantageous as the total pressure (absolute) for the copolymerization for the preparation of the polyether carbonate polyols. It is possible to supply the carbon dioxide continuously or discontinuously. This depends on how quickly the alkylene oxides are consumed and whether the product should contain CCE-free polyether blocks.
- the amount of carbon dioxide can also vary with the addition of the alkylene oxides. CO2 can also be added to the reactor as a solid and then under the selected reaction conditions change to the gaseous, dissolved, liquid and / or supercritical state.
- a preferred embodiment of the method according to the invention is characterized, inter alia, in that in step (g) the total amount of the one or more polymeric formaldehyde compound (s) is added. This addition can take place at a constant metering rate, with a varying metering rate or in portions.
- step (g) for the preparation of the polyoxymethylene-polyether carbonate polyol copolymers or the polymerization in the presence of an inert gas such as nitrogen with the formation of polyoxymethylene-polyether polyol copolymers advantageously at temperatures from 20 ° C. to 130 ° C., preferably from 40 ° C. to 120 ° C. and particularly preferably from 60 ° C. to 110 ° C. If temperatures below 20 ° C. are set, the reaction is generally very slow Above 130 ° C., the amount of undesired by-products increases sharply and the polymeric formaldehyde compound decomposes.
- the alkylene oxide, the polymeric formaldehyde compound, the component (X) and the DMC catalyst can be metered in via separate or shared metering points.
- the alkylene oxide, component (X) and the polymeric formaldehyde compound are fed continuously to the reaction mixture via separate metering points.
- This addition of the one or more polymeric formaldehyde compound (s) and / or of the one or more component (s) (X) can be carried out as continuous metering into the reactor or in portions.
- Steps (a), ( ⁇ ) and (g) can be carried out in the same reactor or separately in each case in different reactors.
- Particularly preferred reactor types are: tubular reactors, stirred kettles, loop reactors.
- Polyoxymethylene-polyoxyalkylene copolymers can be produced in a stirred tank, the stirred tank being cooled, depending on the embodiment and mode of operation, via the reactor jacket, internal cooling surfaces and / or cooling surfaces located in a pumping circuit.
- the stirred tank being cooled, depending on the embodiment and mode of operation, via the reactor jacket, internal cooling surfaces and / or cooling surfaces located in a pumping circuit.
- the concentration of free alkylene oxides in the reaction mixture during the activation step (step ⁇ ) is preferably> 0 to 100% by weight, particularly preferably> 0 to 50% by weight, most preferably> 0 to 20% by weight (in each case based on the weight of the reaction mixture).
- the concentration of free alkylene oxides in the reaction mixture during the reaction (step g) is preferably> 0 to 40% by weight, particularly preferably> 0 to 25% by weight, most preferably> 0 to 20% by weight, in each case based on on the weight of the reaction mixture.
- the activated DMC catalyst suspension agent mixture resulting from steps (a) and ( ⁇ ) is further mixed in the same reactor with one or more alkylene oxide (s), one or more polymeric formaldehyde compound (s), one or more Components (X) and optionally carbon dioxide implemented.
- the activated DMC catalyst / suspension medium mixture resulting from steps (a) and ( ⁇ ) is further treated with alkylene oxides, one or more polymeric formaldehyde compounds in another reaction vessel (for example a stirred tank, tubular reactor or loop reactor) ), one or more components (X) and optionally carbon dioxide implemented.
- the molar ratios of the reactants vary depending on the polymer desired.
- carbon dioxide is metered in in its liquid or supercritical form in order to enable optimal miscibility of the components.
- mixing elements are installed for better mixing of the reactants, such as those sold by Ehrfeld Mikrotechnik BTS GmbH, for example, or mixer / heat exchanger elements that simultaneously improve mixing and heat dissipation.
- Loop reactors can also be used to produce polyoxymethylene-polyoxyalkylene copolymers. This generally includes reactors with material recycling, such as a jet loop reactor, which can also be operated continuously, or a loop-shaped tubular reactor with suitable devices for circulating the reaction mixture or a loop of several tubular reactors connected in series.
- reactors with material recycling such as a jet loop reactor, which can also be operated continuously, or a loop-shaped tubular reactor with suitable devices for circulating the reaction mixture or a loop of several tubular reactors connected in series.
- the use of a loop reactor is particularly advantageous because backmixing can be implemented here so that the concentration of free alkylene oxides in the reaction mixture is in the optimum range, preferably in the range> 0 to 40% by weight, particularly preferably> 0 to 25 % By weight, most preferably> 0 to 20% by weight (in each case based on the weight of the reaction mixture) can be maintained.
- the polyoxymethylene-polyoxyalkylene copolymers are preferably prepared in a continuous process which comprises both continuous copolymerization and continuous addition of the one or more polymeric formaldehyde compound (s) and / or one or more components (X).
- the resulting reaction mixture is continuously removed from the reactor in step (g).
- the invention therefore also relates to a process wherein in step (g) one or more polymeric formaldehyde compound (s), one or more alkylene oxide (s), one or more components (X) and DMC catalyst, optionally in the presence of carbon dioxide, continuously in the Reactor are metered and wherein the resulting reaction mixture (containing the reaction product) is continuously removed from the reactor.
- an activated DMC catalyst suspension agent mixture is prepared, then according to step (g)
- the remaining amount of DMC catalyst, one or more polymeric formaldehyde compound (s), alkylene oxide (s) and one or more component (s) (X), optionally in the presence of carbon dioxide, are metered in continuously, with simultaneously resulting reaction mixture is continuously removed from the reactor.
- step (g) the DMC catalyst is preferably suspended in the suspension medium with H-functional groups or suspension medium without H-functional groups, preferably Suspending agents without H-functional groups are added, the amount preferably being selected such that the content of DMC catalyst in the resulting reaction product is 10 to 10,000 ppm, particularly preferably 20 to 5000 ppm and most preferably 50 to 3000 ppm.
- Steps (a) and ( ⁇ ) are preferably carried out in a first reactor, and the resulting reaction mixture is then transferred to a second reactor for the copolymerization according to step (g). However, it is also possible to carry out steps (a), ( ⁇ ) and (g) in one reactor.
- the process of the present invention can be used to produce large quantities of the polyoxymethylene-polyoxyalkylene copolymer product, initially using a DMC catalyst activated in a suspending agent according to steps (a) and ( ⁇ ), and during the copolymerization (g) the DMC catalyst is added without prior activation.
- a particularly advantageous feature of the preferred embodiment of the present invention is therefore the ability to use "fresh" DMC catalysts without activation for the portion of DMC catalyst which is added continuously in step (g).
- Activation of DMC catalysts to be carried out analogously to step (ß) not only involves additional attention by the operator, which increases the production costs, but also requires a pressure reaction vessel, which also increases the capital costs when building a corresponding production facility.
- fresh" catalyst is defined as unactivated DMC catalyst in solid form or in the form of a slurry in a polymeric formaldehyde compound or suspending agent.
- continuous can be defined as a mode of adding a relevant catalyst or reactant such that a substantially continuous effective concentration of the DMC catalyst or reactant is maintained.
- the catalyst can be fed in really continuously or in relatively closely spaced increments.
- continuous addition of the polymeric formaldehyde compound and / or component (X) can be truly continuous or take place in increments. It would not deviate from the present method to incrementally add a DMC catalyst or reactants such that the concentration of the added materials drops to essentially zero for some time before the next incremental addition.
- the DMC catalyst concentration be maintained during the majority of the course of the continuous reaction in the Is maintained at substantially the same concentration and that initiator substance is present during the major part of the copolymerization process.
- step (d) the reaction mixture continuously removed in step (g), which generally contains from 0.05% by weight to 10% by weight alkylene oxide, can be transferred to a postreactor, in which a post-reaction, the content of free alkylene oxide is reduced to less than 0.05 wt .-% in the reaction mixture.
- a tubular reactor, a loop reactor or a stirred tank, for example, can be used as the postreactor.
- the pressure in this postreactor is preferably the same as in the reaction apparatus in which reaction step (g) is carried out.
- the pressure in the downstream reactor can also be selected to be higher or lower.
- all or some of the carbon dioxide is released after reaction step (g) and the downstream reactor is operated at normal pressure or a slight excess pressure.
- the temperature in the downstream reactor is preferably from 50 to 150.degree. C. and particularly preferably from 80 to 140.degree.
- the present invention also provides polyoxymethylene-polyoxyalkylene copolymers obtainable by the process according to the invention.
- the polyoxymethylene-polyalkylene oxide copolymer has an oxymethylene group content of 1% by weight to 70% by weight, preferably 10% by weight to 50% by weight and particularly preferably 20% by weight up to 50% by weight based on the polyoxymethylene-polyalkylene oxide copolymer product is determined by means of the 1 H-NMR method described in the experimental section.
- the polyoxymethylene copolymers have a number average molecular weight of ⁇ 15000 g / mol, preferably ⁇ 9500 g / mol, particularly preferably ⁇ 6000 g / mol, very particularly preferably ⁇ 5000 g / mol, in particular from 200 g / mol to 9500 g / mol, preferably from 500 g / mol to 5000 g / mol.
- the number average molecular weight can be determined, for example, by gel permeation chromatography (GPC) against e.g. polystyrene standards and / or by means of experimentally determined hydroxyl numbers (OH #).
- the polyoxymethylene copolymers have a number average molecular weight of from 500 g / mol to 5000 g / mol, preferably from 1000 g / mol to 4000 g / mol and particularly preferably from 1500 g / mol to 3500 g / mol.
- the number average molecular weight can be determined, for example, by gel permeation chromatography (GPC) against, for example, polystyrene standards and / or by means of experimentally determined hydroxyl numbers (OH #).
- the polyoxymethylene copolymers according to the invention preferably have terminal hydroxyl groups and preferably have a hydroxyl functionality F> 2 (number of hydroxyl groups per molecule).
- polyoxymethylene copolymers these have a monomodal molecular weight distribution and a polydispersity index (PDI) of ⁇ 2.5, preferably ⁇ 2.2.
- PDI polydispersity index
- the polyoxymethylene copolymers obtainable by the process according to the invention preferably contain less than 1.0% by weight, in particular less than 0.5% by weight, based on the total mass of the resulting polyoxymethylene copolymer, formate and / or methoxy impurities.
- the polyoxymethylene copolymers obtainable by the process according to the invention generally have a low content of by-products and decomposition products, such as formate, traces of methoxy, monomeric and oligomeric formaldehyde, residual monomers and can be processed without problems, in particular by reaction with di-, tri and / or polyisocyanates to form polyurethanes, isocyanate-functionalized polyurethane prepolymers or polyisocyanurates, in particular polyurethane thermoplastics, polyurethane coatings,
- polyurethane foams including flexible (such as, for example, flexible polyurethane block foams and flexible polyurethane molded foams) and rigid foams.
- polyoxymethylene copolymers which have a functionality of at least two.
- the polyoxymethylene copolymers obtainable by the process according to the invention can be used in applications such as detergent and cleaning agent formulations, adhesives, paints, varnishes, functional fluids, drilling fluids, fuel additives, ionic and non-ionic surfactants, lubricants, process chemicals for paper or textile production or cosmetic / medicinal formulations can be used.
- the polymers to be used must meet certain material properties such as molecular weight, viscosity, polydispersity, functionality and / or hydroxyl number (number of terminal hydroxyl groups per molecule).
- the invention further relates to a method for producing a polyurethane polymer, comprising the step of reacting a polyisocyanate component with a polyol component, the polyol component comprising the polyoxymethylene-polyoxyalkylene copolymer according to the invention.
- the polyurethane polymers are flexible polyurethane foams or rigid polyurethane foams.
- the polyurethane polymers are thermoplastic polyurethane polymers.
- the invention therefore also provides a polyurethane polymer obtainable by reacting a di-, tri- and / or polyisocyanate with at least one polyoxymethylene according to the invention
- the invention also provides a flexible polyurethane foam or a rigid polyurethane foam obtainable by reacting a di-, tri- and / or polyisocyanate with at least one polyoxymethylene copolymer according to the invention. Also included according to the invention is the use of polyoxymethylene copolymers according to the present invention for the production of polyurethanes, detergent and cleaning agent formulations, drilling fluids, fuel additives, ionic and non-ionic surfactants, lubricants, process chemicals for paper or textile production or cosmetic formulations.
- Double metal cyanide (DMC) catalyst Double metal cyanide (DMC) catalyst
- the DMC catalyst used in all examples was DMC catalyst prepared according to Example 6 in WO 01/80994 A1, containing zinc hexacyanocobaltate, tert-butanol and polypropylene glycol with a number average molecular weight of 1000 g / mol.
- the weight and number average molecular weights Mw and Mn of the resulting polymers were determined by means of gel permeation chromatography (GPC).
- GPC gel permeation chromatography
- the GPC measurements were carried out at 40 ° C. in tetrahydrofuran (THF, flow rate: 1.0 mL / min) based on DIN 55672-1.
- the column set consisted of five columns: PSS, 5 pL, 8x50 mL guard column, 2 PSS SVD, 5 pL, 100 ⁇ , 8x300mm, 2 PSS SVD, 5 pL, 1000 ⁇ , 8x300mm)).
- Samples (concentration 2-3 g Ll, Injection volume 100 pL) were injected with an Agilent Technologies 1100.
- the proportion of incorporated formaldehyde (FA) in the resulting polymer (FA content) was determined by means of ⁇ -NMR spectroscopy (Bruker, AV III HD 600, 600 MHz; pulse program zg30, 16 scans). The sample was each dissolved in deuterated chloroform.
- the proportion of formaldehyde in the polymer was found to be 13.4% by weight.
- Example 2 The experiment was carried out analogously to Example 1, the amount of X-1 not being initially introduced into the reactor as component X, but rather at the same time as the continuous PO metering via which the first 100 g of PO were metered. The remaining 75 g of PO were dosed accordingly without the co-starter. According to NMR, the proportion of formaldehyde in the polymer was found to be 11.1% by weight.
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Toxicology (AREA)
- Polyethers (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
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EP20179673.7A EP3922661A1 (fr) | 2020-06-12 | 2020-06-12 | Procédé de fabrication de copolymères polyoxyméthylène-polyoxyalkylène |
PCT/EP2021/065107 WO2021249905A1 (fr) | 2020-06-12 | 2021-06-07 | Procédé de production de copolymères de polyoxyméthylène-polyoxyalkylène |
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EP21730230.6A Pending EP4165104A1 (fr) | 2020-06-12 | 2021-06-07 | Procédé de production de copolymères de polyoxyméthylène-polyoxyalkylène |
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GB1063525A (en) | 1963-02-14 | 1967-03-30 | Gen Tire & Rubber Co | Organic cyclic oxide polymers, their preparation and tires prepared therefrom |
US3436375A (en) | 1965-12-14 | 1969-04-01 | Celanese Corp | Preparation of oxymethylene polymers in the presence of polyhydric compounds |
US3829505A (en) | 1970-02-24 | 1974-08-13 | Gen Tire & Rubber Co | Polyethers and method for making the same |
US3941849A (en) | 1972-07-07 | 1976-03-02 | The General Tire & Rubber Company | Polyethers and method for making the same |
DE3050137C1 (de) | 1979-12-17 | 1985-11-14 | Asahi Kasei Kogyo K.K., Osaka | Verfahren zur Herstellung von Polyoxymethylenen |
JP2928823B2 (ja) | 1990-03-14 | 1999-08-03 | 旭化成工業株式会社 | ポリオキシメチレン組成物 |
DE4142718C2 (de) | 1991-12-21 | 1996-07-11 | Continental Ag | Verfahren und Vorrichtung zur Herstellung eines Fahrzeugluftreifens |
US5158922A (en) | 1992-02-04 | 1992-10-27 | Arco Chemical Technology, L.P. | Process for preparing metal cyanide complex catalyst |
US5470813A (en) | 1993-11-23 | 1995-11-28 | Arco Chemical Technology, L.P. | Double metal cyanide complex catalysts |
US5712216A (en) | 1995-05-15 | 1998-01-27 | Arco Chemical Technology, L.P. | Highly active double metal cyanide complex catalysts |
US5482908A (en) | 1994-09-08 | 1996-01-09 | Arco Chemical Technology, L.P. | Highly active double metal cyanide catalysts |
US5545601A (en) | 1995-08-22 | 1996-08-13 | Arco Chemical Technology, L.P. | Polyether-containing double metal cyanide catalysts |
US5627120A (en) | 1996-04-19 | 1997-05-06 | Arco Chemical Technology, L.P. | Highly active double metal cyanide catalysts |
US5714428A (en) | 1996-10-16 | 1998-02-03 | Arco Chemical Technology, L.P. | Double metal cyanide catalysts containing functionalized polymers |
DE19905611A1 (de) | 1999-02-11 | 2000-08-17 | Bayer Ag | Doppelmetallcyanid-Katalysatoren für die Herstellung von Polyetherpolyolen |
DE19958355A1 (de) | 1999-12-03 | 2001-06-07 | Bayer Ag | Verfahren zur Herstellung von DMC-Katalysatoren |
PL203954B1 (pl) | 2000-04-20 | 2009-11-30 | Bayer Ag | Sposób wytwarzania katalizatorów DMC |
DE10219028A1 (de) | 2002-04-29 | 2003-11-06 | Bayer Ag | Herstellung und Verwendung von hochmolekularen aliphatischen Polycarbonaten |
JP4145123B2 (ja) | 2002-11-18 | 2008-09-03 | 株式会社オンダ製作所 | 継手 |
US7304172B2 (en) | 2004-10-08 | 2007-12-04 | Cornell Research Foundation, Inc. | Polycarbonates made using highly selective catalysts |
JP5570509B2 (ja) | 2008-07-30 | 2014-08-13 | エスケー イノベーション カンパニー リミテッド | 新規の錯化合物及びこれを触媒として使用した二酸化炭素とエポキシドの共重合によるポリカーボネートの製造方法 |
US10093772B2 (en) | 2014-04-07 | 2018-10-09 | Covestro Deutschland Ag | Process for the production of polyoxymethylene block copolymers |
EP3643730A1 (fr) | 2018-10-26 | 2020-04-29 | Covestro Deutschland AG | Procédé de production de copolymères séquencés de polyoxyméthylène polyoxyalkylène |
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