CA2879574A1 - Use of branched polyesters based on citric acid as additive in washing compositions, cleaners, detergents or a formulation for water treatment - Google Patents
Use of branched polyesters based on citric acid as additive in washing compositions, cleaners, detergents or a formulation for water treatment Download PDFInfo
- Publication number
- CA2879574A1 CA2879574A1 CA2879574A CA2879574A CA2879574A1 CA 2879574 A1 CA2879574 A1 CA 2879574A1 CA 2879574 A CA2879574 A CA 2879574A CA 2879574 A CA2879574 A CA 2879574A CA 2879574 A1 CA2879574 A1 CA 2879574A1
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- Prior art keywords
- acid
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- 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.)
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- 239000000203 mixture Substances 0.000 title claims abstract description 94
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 229920000728 polyester Polymers 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000009472 formulation Methods 0.000 title claims abstract description 35
- 239000003599 detergent Substances 0.000 title claims abstract description 17
- 238000005406 washing Methods 0.000 title claims abstract description 17
- 239000000654 additive Substances 0.000 title claims abstract description 14
- 230000000996 additive effect Effects 0.000 title claims abstract description 9
- -1 cleaners Substances 0.000 title claims description 86
- 239000002253 acid Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 25
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims description 42
- 238000006243 chemical reaction Methods 0.000 claims description 33
- 239000003054 catalyst Substances 0.000 claims description 28
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 27
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- 239000007844 bleaching agent Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 14
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 12
- 150000007513 acids Chemical class 0.000 claims description 12
- 238000004851 dishwashing Methods 0.000 claims description 12
- 229910019142 PO4 Inorganic materials 0.000 claims description 11
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 11
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 11
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 10
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 10
- 235000021317 phosphate Nutrition 0.000 claims description 10
- 102000004190 Enzymes Human genes 0.000 claims description 9
- 108090000790 Enzymes Proteins 0.000 claims description 9
- 239000003112 inhibitor Substances 0.000 claims description 9
- 238000006068 polycondensation reaction Methods 0.000 claims description 9
- 229920001223 polyethylene glycol Polymers 0.000 claims description 9
- 239000012190 activator Substances 0.000 claims description 8
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 8
- 239000002736 nonionic surfactant Substances 0.000 claims description 8
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 7
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 7
- AGNTUZCMJBTHOG-UHFFFAOYSA-N 3-[3-(2,3-dihydroxypropoxy)-2-hydroxypropoxy]propane-1,2-diol Chemical compound OCC(O)COCC(O)COCC(O)CO AGNTUZCMJBTHOG-UHFFFAOYSA-N 0.000 claims description 7
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 7
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 7
- 239000005642 Oleic acid Substances 0.000 claims description 7
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- 239000008139 complexing agent Substances 0.000 claims description 7
- 239000012948 isocyanate Substances 0.000 claims description 7
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 7
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 7
- ARXKVVRQIIOZGF-UHFFFAOYSA-N 1,2,4-butanetriol Chemical compound OCCC(O)CO ARXKVVRQIIOZGF-UHFFFAOYSA-N 0.000 claims description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- 150000008064 anhydrides Chemical class 0.000 claims description 6
- 239000000969 carrier Substances 0.000 claims description 6
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 claims description 6
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 6
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 6
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 6
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 125000000129 anionic group Chemical group 0.000 claims description 5
- 239000003945 anionic surfactant Substances 0.000 claims description 5
- 239000000975 dye Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 239000003205 fragrance Substances 0.000 claims description 5
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 239000002888 zwitterionic surfactant Substances 0.000 claims description 5
- PXGZQGDTEZPERC-UHFFFAOYSA-N 1,4-cyclohexanedicarboxylic acid Chemical class OC(=O)C1CCC(C(O)=O)CC1 PXGZQGDTEZPERC-UHFFFAOYSA-N 0.000 claims description 4
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 claims description 4
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 claims description 4
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 4
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 claims description 4
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 4
- 229920000166 polytrimethylene carbonate Polymers 0.000 claims description 4
- 235000013772 propylene glycol Nutrition 0.000 claims description 4
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 4
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 claims description 4
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 claims description 3
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 claims description 3
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 3
- ZWVMLYRJXORSEP-UHFFFAOYSA-N 1,2,6-Hexanetriol Chemical compound OCCCCC(O)CO ZWVMLYRJXORSEP-UHFFFAOYSA-N 0.000 claims description 3
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 3
- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 claims description 3
- 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 3
- DSLZVSRJTYRBFB-LLEIAEIESA-N D-glucaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O DSLZVSRJTYRBFB-LLEIAEIESA-N 0.000 claims description 3
- 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 3
- 235000021314 Palmitic acid Nutrition 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 3
- 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 3
- 229930006000 Sucrose Natural products 0.000 claims description 3
- 239000001361 adipic acid Substances 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 3
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 3
- 239000007884 disintegrant Substances 0.000 claims description 3
- 230000009477 glass transition Effects 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 235000021313 oleic acid Nutrition 0.000 claims description 3
- 239000002455 scale inhibitor Substances 0.000 claims description 3
- 239000000600 sorbitol Substances 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000005720 sucrose Substances 0.000 claims description 3
- 239000007885 tablet disintegrant Substances 0.000 claims description 3
- KAYAKFYASWYOEB-UHFFFAOYSA-N 3-octadec-1-enyloxolane-2,5-dione Chemical compound CCCCCCCCCCCCCCCCC=CC1CC(=O)OC1=O KAYAKFYASWYOEB-UHFFFAOYSA-N 0.000 claims description 2
- 239000005639 Lauric acid Substances 0.000 claims description 2
- 229920000388 Polyphosphate Polymers 0.000 claims description 2
- 239000003139 biocide Substances 0.000 claims description 2
- QSAWQNUELGIYBC-UHFFFAOYSA-N cyclohexane-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCCCC1C(O)=O QSAWQNUELGIYBC-UHFFFAOYSA-N 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical class [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 claims description 2
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 2
- 239000001205 polyphosphate Substances 0.000 claims description 2
- 235000011176 polyphosphates Nutrition 0.000 claims description 2
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 claims description 2
- 229960003656 ricinoleic acid Drugs 0.000 claims description 2
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 claims description 2
- 150000003751 zinc Chemical class 0.000 claims description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims 2
- HOSGXJWQVBHGLT-UHFFFAOYSA-N 6-hydroxy-3,4-dihydro-1h-quinolin-2-one Chemical group N1C(=O)CCC2=CC(O)=CC=C21 HOSGXJWQVBHGLT-UHFFFAOYSA-N 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 18
- 239000012459 cleaning agent Substances 0.000 abstract 1
- 239000000344 soap Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 229960004106 citric acid Drugs 0.000 description 20
- YASYEJJMZJALEJ-UHFFFAOYSA-N Citric acid monohydrate Chemical compound O.OC(=O)CC(O)(C(O)=O)CC(O)=O YASYEJJMZJALEJ-UHFFFAOYSA-N 0.000 description 19
- 229960002303 citric acid monohydrate Drugs 0.000 description 19
- 230000002378 acidificating effect Effects 0.000 description 17
- 125000004432 carbon atom Chemical group C* 0.000 description 16
- 239000000047 product Substances 0.000 description 16
- 150000003839 salts Chemical class 0.000 description 12
- 238000001816 cooling Methods 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 239000011521 glass Substances 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 229910052783 alkali metal Inorganic materials 0.000 description 9
- 238000002425 crystallisation Methods 0.000 description 9
- 230000008025 crystallization Effects 0.000 description 9
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 229910001424 calcium ion Inorganic materials 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 229940088598 enzyme Drugs 0.000 description 8
- 239000011575 calcium Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 7
- 150000002009 diols Chemical class 0.000 description 7
- 238000006386 neutralization reaction Methods 0.000 description 7
- 125000002524 organometallic group Chemical group 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 108090001060 Lipase Proteins 0.000 description 6
- 239000004367 Lipase Substances 0.000 description 6
- 102000004882 Lipase Human genes 0.000 description 6
- 150000001298 alcohols Chemical class 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 150000001991 dicarboxylic acids Chemical class 0.000 description 6
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 235000019421 lipase Nutrition 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 229920000223 polyglycerol Polymers 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 description 5
- 235000001465 calcium Nutrition 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 108090000371 Esterases Proteins 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 108091005804 Peptidases Proteins 0.000 description 4
- 239000004365 Protease Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- BGRWYDHXPHLNKA-UHFFFAOYSA-N Tetraacetylethylenediamine Chemical compound CC(=O)N(C(C)=O)CCN(C(C)=O)C(C)=O BGRWYDHXPHLNKA-UHFFFAOYSA-N 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 4
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 4
- 238000010612 desalination reaction Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000005227 gel permeation chromatography Methods 0.000 description 4
- 150000002513 isocyanates Chemical class 0.000 description 4
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 159000000001 potassium salts Chemical class 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- 235000019832 sodium triphosphate Nutrition 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 125000000542 sulfonic acid group Chemical group 0.000 description 4
- 150000004072 triols Chemical class 0.000 description 4
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- GTCCGKPBSJZVRZ-UHFFFAOYSA-N pentane-2,4-diol Chemical compound CC(O)CC(C)O GTCCGKPBSJZVRZ-UHFFFAOYSA-N 0.000 description 1
- 235000019831 pentapotassium triphosphate Nutrition 0.000 description 1
- ATGAWOHQWWULNK-UHFFFAOYSA-I pentapotassium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [K+].[K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O ATGAWOHQWWULNK-UHFFFAOYSA-I 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 description 1
- IFIDXBCRSWOUSB-UHFFFAOYSA-M potassium;1,5-dichloro-4,6-dioxo-1,3,5-triazin-2-olate Chemical compound [K+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O IFIDXBCRSWOUSB-UHFFFAOYSA-M 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- TVDSBUOJIPERQY-UHFFFAOYSA-N prop-2-yn-1-ol Chemical compound OCC#C TVDSBUOJIPERQY-UHFFFAOYSA-N 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- WWYDYZMNFQIYPT-UHFFFAOYSA-N ru78191 Chemical compound OC(=O)C(C(O)=O)C1=CC=CC=C1 WWYDYZMNFQIYPT-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- CDAISMWEOUEBRE-UHFFFAOYSA-N scyllo-inosotol Natural products OC1C(O)C(O)C(O)C(O)C1O CDAISMWEOUEBRE-UHFFFAOYSA-N 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229960000999 sodium citrate dihydrate Drugs 0.000 description 1
- MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229960004274 stearic acid Drugs 0.000 description 1
- 229940012831 stearyl alcohol Drugs 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000005063 tetradecenyl group Chemical group C(=CCCCCCCCCCCCC)* 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3715—Polyesters or polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/91—Polymers modified by chemical after-treatment
- C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
- C11D17/0091—Dishwashing tablets
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/395—Bleaching agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Detergent Compositions (AREA)
- Polyesters Or Polycarbonates (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Cosmetics (AREA)
Abstract
The invention relates to the use of branched polyesters that can be obtained by polycondensing citric acid using at least one polyalcohol, and optionally using a polycarboxylic acid component as an additive in dish soaps, cleaning agents, detergents, or a formulation for water treatment and mixtures containing such branched polyesters. The invention further relates to the use of hydrophobically modified branched polyesters and the method for cleaning, washing, or water treatment using such branched polyesters.
Description
As originally filed Use of branched polyesters based on citric acid as additive in washing compositions, cleaners, detergents or a formulation for water treatment The present invention relates to the use of branched polyesters obtainable by polycondensation of citric acid with at least one polyalcohol, and optionally with polycarboxylic acid component as additive in washing compositions, cleaners, detergents or a formulation for water treatment and to mixtures comprising such branched polyesters. The invention further relates to the use of hydrophobically modified branched polyesters, and to the method for cleaning, washing or water treatment using such branched polyesters.
2 describes a process for preparing polyesters from citric acid and polyhydroxyl compounds and their use as additive to low-phosphate or phosphate-free detergents and cleaners. The polyhydroxyl compounds are oligo- and polysaccharides, modified oligo- and polysaccharides, and polyvinyl alcohols.
US 5,652,330 describes polycondensates of citric acid which are either polycondensates of citric acid with itself or into which alcohol components are condensed in deficiency with a molar ratio of 100:1 to 2.5:1. The polycondensates described therein are used in detergents and cleaners especially for preventing scale deposits.
WO 2012/028496 describes branched polyesters which comprise citric acid as structural component, processes for preparing such polyesters, and their use for solubilizing sparingly soluble, basic pharmaceutical active ingredients.
US 5,652,330 describes polycondensates of citric acid which are either polycondensates of citric acid with itself or into which alcohol components are condensed in deficiency with a molar ratio of 100:1 to 2.5:1. The polycondensates described therein are used in detergents and cleaners especially for preventing scale deposits.
WO 2012/028496 describes branched polyesters which comprise citric acid as structural component, processes for preparing such polyesters, and their use for solubilizing sparingly soluble, basic pharmaceutical active ingredients.
3 claims citric acid esters of polyhydroxyl compounds such as polyglycerol or sugar alcohols and their use in detergents and cleaners.
Polymers obtainable by free-radical polymerization and composed of carboxyl-group-containing and/or sulfonic acid-group-containing monomers have been an important constituent of phosphate-containing and phosphate-free machine dishwashing detergents for many years. By virtue of their soil-dispersing and deposit-inhibiting effect, they make a considerable contribution to the cleaning and rinsing performance of machine dishwashing compositions. For instance, they ensure that no salt deposits of the hardness-forming calcium and magnesium ions remain on the ware.
as originally filed"
Homopolymers of acrylic acid or copolymers of acrylic acid and 2-acrylamido-2-methylpropanesulfonic acid are often used for this purpose.
These polymers are also used in water-conveying systems as agents for preventing mineral deposits such as e.g. calcium and magnesium sulfate, magnesium hydroxide, calcium and barium sulfate and calcium phosphate on heat transfer surfaces or in pipelines. Water-conveying systems to be mentioned here are inter alia cooling and boiler feed water systems and industrial process waters. However, these polymers are also used as scale inhibitors in the desalination of seawater or brackish water by distillation and by membrane processes such as reverse osmosis or electrodialysis.
One disadvantage of these polymers obtainable by free-radical polymerization and composed of carboxyl-group-containing and/or sulfonic acid-group-containing monomers is that they are not biodegradable. Biodegradable polymers such as, for example, polyaspartic acid, however, have struggled to gain acceptance commercially due to the high production costs.
It was therefore the object of the invention to provide substances which can be used for cleaning purposes, in particular as additive to phosphate-containing and phosphate-free cleaner formulations for machine dishwashing, and for the purpose of scale inhibition in water-conveying systems, and are biodegradable. It was a further object of the invention to provide substances which can be readily incorporated into formulations for cleaning purposes in their various presentation forms.
These and other objects are achieved, as is evident from the disclosure of the present invention, by the various embodiments of the invention, in particular by the use of branched polyesters obtainable by polycondensation of a. citric acid (component A) with b. at least one polyalcohol (component B) and c. optionally a polycarboxylic acid component (component C) and optionally reaction with d. at least one component D selected from the group consisting of: C6-C30 alkyl- or alkenylcarboxylic acids, 06-030 alkyl or alkenyl alcohols, 06-030 alkyl- or alkenylamines, 06-030 aliphatic isocyanates during the polycondensation or subsequently ,,as originally filed"
, as additive in washing compositions, cleaners, detergents or a formulation for water treatment.
The molar ratio of citric acid to polyalcohol is 5.0:1.0 to 1.0:1.5.
Preferably, the molar ratio of citric acid to polyalcohol is 3.5:1 to 1.0:1.5.
In a further preferred embodiment of the process according to the invention, hydrophobically modified branched polyesters are used.
Within the context of the present invention, hydrophobically modified branched polyesters are understood as meaning modified polyesters of citric acid and at least one polyhydroxyl compound and optionally one polycarboxylic acid in which the accessible hydroxyl and/or carboxyl groups have at least partially been further modified, i.e. have been reacted with reagents which alter the properties of the polyesters modified in this way. Properties in this connection are solubility, dispersibility and hydrophobicity.
The modification of the polyester preferably takes place with the polyesters according to the invention of citric acid and polyhydroxyl compounds, as are described above.
Hydrophobically modified branched polyesters of citric acid and polyhydroxyl compounds can be obtained by adding alkyl- or alkenylcarboxylic acids, alkyl or alkenyl alcohols, alkyl- or alkenylamines and/or aliphatic isocyanates during the condensation reaction or by means of a subsequent reaction.
The hydrophobically modified polyesters have proven to be advantageous for cleaning ware items heavily soiled with domestic fats. In addition, they can be converted easily into solid forms. In particular, the production of granules is facilitated by the hydrophobicization step.
Particular preference is given to the use of hydrophobically modified branched polyesters which are obtained by adding alkyl- or alkenylcarboxylic acids during the condensation reaction or in a subsequent reaction step.
In order to achieve an amphiphilic character, the highly functional, highly branched polyesters of citric acid and polyhydroxyl compounds (during the condensation reaction ,,as originally filed"
, . 4 or subsequently) can also be reacted with hydrophobic and hydrophilic agents, for example with long-chain alkyl- or alkenylcarboxylic acids, alkyl or alkenyl alcohols, alkyl- or alkenylamines or isocyanates and simultaneously with mono-, di- or higher-functional alcohols, amines, acids or isocyanates having polyethylene glycol chains.
Hyperbranched polyesters are preferably suitable. Within the context of this invention, hyperbranched polyesters are understood as meaning uncrosslinked polyesters with hydroxyl and carboxyl groups which are both structurally and molecularly nonuniform.
Within the context of this specification, uncrosslinked means that a degree of crosslinking of less than 15% by weight, preferably of less than 10% by weight, determined via the insoluble fraction of the polymer, is present.
Hyperbranched polyesters can on the one hand be formed starting from a central molecule analogously to dendrimers, but with nonuniform chain length of the branches.
On the other hand, they can also have a linear structure, with functional side groups, or else, being a combination of the two extremes, have linear and branched molecular moieties. For the definition of dendrimers and hyperbranched polymers, see also P.J. Flory, J. Am. Chem. Soc. 1952, 74, 2718 and H. Frey et al., Chemistry - A
European Journal, 2000, 6, No. 14, 2499.
In connection with the present invention, "hyperbranched" is understood as meaning that the degree of branching (DB) is 10 to 99.9%, preferably 20 to 99%, particularly preferably 20- 95%. The degree of branching DB is defined here as DB CYO = (T
+ Z) /
(T + Z + L) x 100, where T is the average number of terminally bonded monomer units, Z is the average number of monomer units forming branches, L is the average number of linearly bonded monomer units.
In connection with the present invention, "dendrimeric" is understood as meaning that the degree of branching is 99.9-100%. For the definition of the "Degree of Branching", see H. Frey et al., Acta Polym. 1997, 48, 30-35.
Component A
,,as originally filed"
According to the invention, citric acid is understood as meaning citric acid anhydrate and also the hydrates of citric acid, such as, for example, citric acid monohydrate.
Component B
According to the invention, suitable polyalcohols are alcohols with at least two hydroxyl groups and up to six hydroxyl groups. Preferably, diols or triols or mixtures of different diols and/or triols are contemplated. Suitable polyalcohols are, for example, polyetherols. The polyetherols can be obtained by reaction with ethylene oxide, propylene oxide and/or butylene oxide. In particular, polyetherols based on ethylene oxide and/or propylene oxide are suitable. It is also possible to use mixtures of such polyetherols.
Suitable diols are, for example ethylene glycol, propane-1,2-diol, propane-1,3-diol, butane-1,2-diol, butane-1,3-diol, butane-1,4-diol, butane-2,3-diol, pentane-1,2-diol, pentane-1,3-diol, pentane-1,4-diol, pentane-1,5-diol, pentane-2,3-diol, pentane-2,4-diol, hexane-1,2-diol, hexane-1,3-diol, hexane-1,4-diol, hexane-1,5-diol, hexane-1,6-diol, hexane-2,5-diol, heptane-1,2-diol, 1,7-heptanediol, 1,8-octanediol, 1,2-octanediol, 1,9-nonanediol, 1,2-decandiol, 1,10-decandiol, 1,2-dodecandiol, 1,12-dodecandiol, 1,5-hexadiene-3,4-diol, 1,2- and 1,3-cyclopentanediols, 1,2-, 1,3- and 1,4-cyclohexanediols, 1,1-, 1,2-, 1,3- and 1,4-bis(hydroxymethyl)cyclohexanes, 1,1-, 1,2-, 1,3- and 1,4-bis(hydroxyethyl)cyclohexanes, neopentyl glycol, (2)-methy1-2,4-pentanediol, 2,4-dimethy1-2,4-pentanediol, 2-ethyl-1,3-hexanediol, 2,5-dimethy1-2,5-hexanediol, 2,2,4-trimethy1-1,3-pentanediol, pinacol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, polyethylene glycols HO(CH2CH20)n-H or polypropylene glycols HO(CH[CH3]CH20)0-H, where n is an integer and n ?. 4, polyethylene polypropylene glycols, where the sequence of the ethylene oxide of the propylene oxide units can be blockwise or random, polytetramethylene glycols, preferably up to a molecular weight up to 5000 g/mol, poly-1,3-propanediols, preferably with a molecular weight up to 5000 g/mol, polycaprolactones or mixtures of two or more representatives of the above compounds. For example, one to six, preferably one to four, particularly preferably one to three, very particularly preferably one to two and in particular one diol can be used. Here, one or both hydroxyl groups in the diols specified above can be substituted by SH groups. Diols preferably used are ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,8-octanediol, 1,2-, 1,3- and 1,4-cyclohexanediol, 1,3- and 1,4-õas originally filed÷
bis(hydroxymethyl)cyclohexane, and diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol and polyethylene glycols with an average molecular weight between 200 and 1000 g/mol.
The dihydric polyalcohols can optionally also comprise further functionalities such as, for example, carbonyl, carboxyl, alkoxycarbonyl or sulfonyl, such as, for example, dimethylolpropionic acid or dimethylolbutyric acid, and C1-C4-alkyl esters thereof, although the alcohols preferably have no further functionalities.
Preferred diols are ethylene glycol, diethylene glycol and polyethylene glycol with an average molecular weight between 200 and 1000 g/mol.
Suitable triols or higher-functional polyalcohols are, for example, glycerol, trimethylolmethane, trimethylolethane, trimethylolpropane, bis(trimethylolpropane), trimethylolbutane, trimethylolpentane, 1,2,4-butanetriol, 1,2,6-hexanetriol, tris(hydroxymethyl)amine, tris(hydroxyethyl)amine, tris(hydroxypropyl)amine, pentaerythritol, diglycerol, triglycerol or higher condensation products of glycerol, di(trimethylolpropane), di(pentaerythritol), tris(hydroxymethyl) isocyanurate, tris(hydroxyethyl) isocyanurate (THE IC), tris(hydroxypropyl) isocyanurate and N-[1,3-bis(hydroxymethyl)-2,5-dioxo-4-imidazolidiny1]-N,N'-bis(hydroxymethyOurea.
Preferred triols are trimethylolpropane, trimethylolethane, glycerol, diglycerol and triglycerol, and polyetherols thereof based on ethylene oxide and/or propylene oxide.
Also suitable are furthermore sugars or sugar alcohols, such as, for example, glucose, fructose or sucrose, sugar alcohols such as e.g. sorbitol, mannitol, threitol, erythritol, adonitol (ribitol), arabitol (lyxitol), xylitol, dulcitol (galactitol), maltitol, isomalt, or inositol.
Also suitable are tri- or higher-functional polyetherols based on tri- or higher-functional alcohols which are obtained by reaction with ethylene oxide, propylene oxide and/or butylene oxide, or mixtures of such reaction products.
It is also possible to use mixtures of at least trifunctional polyalcohols.
For example, one to six, preferably one to four, particularly preferably one to three, very particularly preferably one to two and in particular one at least trifunctional alcohol can be used.
,,as originally filed"
In this connection, ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, and diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, polyethylene glycol with an average molecular weight between 200 and 1000 g/mol, glycerol, diglycerol, triglycerol, trimethylolpropane, trimethylolethane, di(trimethylolpropane), 1,2,4-butanetriol, 1,2,6-hexanetriol, pentaerythritol, sucrose, sorbitol or glucaric acid, and polyetherols thereof based on ethylene oxide and/or propylene oxide, or a mixture thereof are preferred as component B.
Particular preference is given to diethylene glycol or polyethylene glycol with an average molecular weight between 200 and 1000 g/mol, trimethylolpropane, glycerol or diglycerol, triglycerol, and polyetherols thereof based on ethylene oxide and/or propylene oxide, or a mixture thereof.
Component C
In addition to the citric acid, further carboxylic acids, in particular saturated dicarboxylic acids, can be condensed in, in which case the fraction of further polycarboxylic acids should be at most 30 molc1/0 compared with the amount of citric acid used.
Preferably, the polycarboxylic acids of component C comprise no sulfonate groups.
Suitable saturated dicarboxylic acids are, for example, aliphatic dicarboxylic acids, such as oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azeleic acid, sebacic acid, undecane-a,w-dicarboxylic acid, dodecane-a,w-dicarboxylic acid, cis- and trans-cyclohexane-1,2-dicarboxylic acid, cis-and trans-cyclohexane-1,3-dicarboxylic acid, cis- and trans-cyclohexane-1,4-dicarboxylic acid, cis- and trans-cyclopentane-1,2-dicarboxylic acid, cis- and trans-cyclopentane-1,3-dicarboxylic acid.
The specified saturated dicarboxylic acids can also be substituted with one or more radicals selected from C1-C20-alkyl groups, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec-pentyl, neopentyl, 1,2-dimethylpropyl, isoamyl, n-hexyl, isohexyl, sec-hexyl, n-heptyl, isoheptyl, n-octyl, 2-ethylhexyl, trimethylpentyl, n-nonyl, n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-octadecyl, or n-eicosyl, as originally filed"
, ' 8 C2-C20-alkenyl groups, for example butenyl, hexenyl, octenyl, decenyl, dodecenyl, tetradecenyl, hexadecenyl, octadecenyl or eicosenyl, C3-C12-cycloalkyl groups, for example cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl, cycloundecyl and cyclododecyl; preference is given to cyclopentyl, cyclohexyl and cycloheptyl;
alkylene groups such as methylene or ethylidene or C6-C14-aryl groups such as, for example, phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, 1-phenanthryl, 2-phenanthryl, 3-phenanthryl, 4-phenanthryl and 9-phenanthryl, preferably phenyl, 1-naphthyl and 2-naphthyl, particularly preferably phenyl.
Exemplary representatives of substituted dicarboxylic acids or derivatives thereof which may be mentioned are: 2-methylmalonic acid, 2-ethylmalonic acid, 2-phenylmalonic acid, 2-methylsuccinic acid, 2-ethylsuccinic acid, 2-phenylsuccinic acid, 3,3-dimethylglutaric acid, dodecenylsuccinic acid, hexadecenylsuccinic acid and octadecenylsuccinic acid.
The dicarboxylic acids can either be used as they are or in the form of derivatives.
Derivatives are preferably understood as meaning the relevant anhydrides in monomeric or else polymeric form, mono- or dialkyl esters, preferably mono- or di-C1-C4-alkyl esters, particularly preferably mono- or dimethyl esters or the corresponding mono- or diethyl esters, as well as mixed esters, preferably mixed esters with different C1-C4-alkyl components, particularly preferably mixed methyl ethyl esters.
Among these, preference is given to the anhydrides and the mono- or dialkyl esters, particularly preferably the anhydrides and the mono- or di-C1-C4-alkyl esters and very particularly preferably the anhydrides.
Within the context of this specification, C1-C4-alkyl means methyl, ethyl, isopropyl, n-propyl, n-butyl, isobutyl, sec-butyl and tert-butyl, preferably methyl, ethyl and n-butyl, particularly preferably methyl and ethyl and very particularly preferably methyl.
,,as originally filed"
, Particularly preferably, malonic acid, succinic acid, glutaric acid, adipic acid, sebacic acid, octadecenylsuccinic anhydride, 1,2-, 1,3- or 1,4-cyclohexanedicarboxylic acids (hexahydrophthalic acids as cis or trans compounds or mixtures thereof) are used.
Further preferred dicarboxylic acids are glucaric acid and tartaric acid.
The amount of dicarboxylic acid is not more than 30 mol% compared with the amount of citric acid used, preferably not more than 20%, very particularly preferably not more than 15%.
Component D
Suitable components D are alkyl- or alkenylcarboxylic acids, such as, for example, long-chain, linear or branched carboxylic acids having 6 to 30 carbon atoms, preferably 8 to 22 carbon atoms, in particular 10 to 18 carbon atoms, in the alkyl or alkenyl radical, such as octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, hexadecanoic acid, arachic acid, behenic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid or Li, Na, K, Cs, Ca or ammonium salts thereof.
It is also possible to use mixtures.
Preferably, oleic acid, palmitic acid, linoleic acid, stearic acid, lauric acid and ricinoleic acid are used.
The alkyl- or alkenylcarboxylic acids can also be used in the form of their carboxylic acid alkyl esters. Preference is given to using the methyl esters.
Suitable long-chain alcohols are, for example, linear or branched alcohols having 6 to carbon atoms, preferably 8 to 22 carbon atoms, in particular 10 to 18 carbon atoms in the linear or branched alkyl radical, such as octan-1-ol, decan-1-ol, lauryl alcohol, 30 myristyl alcohol, cetyl alcohol, stearyl alcohol, eicosanol, behenyl alcohol, 9-hexadecen-1-ol and 9-octadecen-1-ol.
Preference is given to using lauryl alcohol and stearyl alcohol.
Exemplary representatives of alkyl- or alkenylamines which may be mentioned are:
linear or branched alkylamines having 6 to 30 carbon atoms, preferably 8 to 22 carbon atoms, in particular 10 to 18 carbon atoms, in the linear or branched alkyl radical, such ,,as originally filed"
as hexylamine, octylamine, nonylamine, decylamine, dodecylamine, tetradecylamine, hexadecylamine, octadecylamine and mixtures thereof.
Suitable long-chain isocyanates are linear or branched isocyanates having 6 to 5 carbon atoms, preferably 8 to 22 carbon atoms, in particular 10 to 18 carbon atoms, in the linear or branched alkyl radical, such as octyl isocyanate, dodecyl isocyanate, stearic isocyanate and mixtures thereof.
The molar ratio of (component A + component B) to component D is preferably 10:0.1 10 to 0.5:0.1, particularly preferably 5:0.1 to 1:0.1.
The present invention further provides hydrophobicized branched polyesters as described above and the process for the preparation thereof.
Preparation process The process for preparing the branched polyesters based on citric acid can be carried out without dilution or in the presence of an organic solvent. Suitable solvents are, for example, hydrocarbons such as paraffins or aromatics. Particularly suitable paraffins are n-heptane and cyclohexane. Particularly suitable aromatics are toluene, ortho-xylene, meta-xylene, para-xylane, xylene as isomer mixture, ethylbenzene, chlorobenzene and ortho- and meta-dichlorobenzene. Furthermore, suitable solvents in the absence of acidic catalysts are very particularly ethers, such as, for example, dioxane or tetrahydrofuran, and ketones such as, for example, methyl ethyl ketone and methyl isobutyl ketone.
The amount of added solvent is at least 0.1% by weight, based on the mass of the starting materials used and to be reacted, preferably at least 1% by weight and particularly preferably at least 10% by weight. It is also possible to use excesses of solvent, based on the mass of starting materials used and to be reacted, for example 1.01-to 10-fold.
Preferably, the reaction is carried out without addition of solvent.
To carry out the process, it is possible to work in the presence of a water-withdrawing agent as additive, which is added at the start of the reaction. Of suitability are, for example, molecular sieves, in particular 4A molecular sieve, MgSO4 and Na2SO4.
,,as originally filed"
, During the reaction, it is also possible to add further water-withdrawing agent or to replace water-withdrawing agent with fresh water-withdrawing agent. During the reaction, it is also possible to distill off water and/or alcohol that is formed and, for example, to use a water separator, in which the water is removed with the help of an entrainer.
Preferably, the process is carried out in the absence of catalysts.
However, it is also possible to carry out the process in the presence of at least one catalyst. As preferred catalysts may acidic inorganic, organometallic or organic catalysts or mixtures of two or more acidic inorganic, organometallic or organic catalysts.
Within the context of this specification, acidic catalysts are considered to be Lewis acids, i.e. those compounds according to Rompps Chemie-Lexikon, under "Saure-Base-Begrifr [Acids and Bases], which can accept an electron pair into the valence shell of one of their atoms.
Acidic inorganic catalysts to be mentioned are, for example, sulfuric acid, sulfates and hydrogensulfates, such as sodium hydrogensulfate, phosphoric acid, phosphonic acid, hydrophosphorous acid, aluminum sulfate hydrate, alum, acidic silica gel (pH 5 6, in particular 5 5) and acidic aluminum oxide. Furthermore, it is possible to use, for example, aluminum compounds of the general formula Al(0R1)3 and titanates of the general formula Ti(0R1)4 as acidic inorganic catalysts, where the radicals R1 may in each case be identical or different and, independently of one another, are selected from C1-C20-alkyl radicals, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec-pentyl, neopentyl, 1,2-dimethylpropyl, isoamyl, n-hexyl, isohexyl, sec-hexyl, n-heptyl, isoheptyl, n-octyl, 2-ethylhexyl, n-nonyl, n-decyl, n-dodecyl, n-hexadecyl or n-octadecyl, C3-C12-cycloalkyl radicals, for example cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl, cycloundecyl and cyclododecyl; preference is given to cyclopentyl, cyclohexyl and cycloheptyl.
Preferably, the radicals R1 in Al(0R1)3 and Ti(0R1)4 are in each case identical and selected from n-butyl, isopropyl, 2-ethylhexyl, n-octyl, decyl or dodecyl.
Preference is given to using titanium(IV) tetrabutoxide.
,,as originally filed"
Preferred acidic organometallic catalysts are selected for example from dialkyltin oxides (R1)2SnO or dialkyltin diesters (R1)2Sn(0R2)2, where R' is as defined above and can be identical or different.
R2 can have the same meanings as R1 and additionally be C6-C12-aryl, for example phenyl, o-, m- or p-tolyl, xylyl or naphthyl. R2 can in each case be identical or different.
Examples are of organotin catalysts are tin(II) n-octanoate, tin(II) 2-ethylhexanoate, tin(II) laurate, dibutyltin oxide, diphenyltin oxide, dibutyltin dichloride, dibutyltin diacetate, dibutyltin dilaurate, dibutyltin dimaleate or dioctyltin diacetate.
Organoantimony, organobismuth or organoaluminum catalysts are also conceivable.
Particularly preferred representatives of acidic organometallic catalysts are dibutyltin oxide, diphenyltin oxide and dibutyltin dilaurate.
Preferred acidic organic catalysts are acidic organic compounds with, for example, phosphate groups, sulfonic acid groups, sulfate groups or phosphonic acid groups.
Particular preference is given to sulfonic acids such as, for example, para-toluenesulfonic acid. It is also possible to use acidic ion exchangers as acidic organic catalysts, for example sulfonic acid-group-containing polystyrene resins which have been crosslinked with about 2 mol /0 of divinylbenzene.
Combinations of two or more of the aforementioned catalysts can also be used.
It is also possible to use those organic or organometallic or else inorganic catalysts which are present in the form of discrete molecules, in immobilized form, for example on silica gel or on zeolites.
If it is desired to use acidic inorganic, organometallic or organic catalysts, then the amount used is preferably 1 to 10 000 ppm by weight of catalyst, particularly preferably 2 to 5000 ppm by weight, based on the total mass of the hydroxyl group- and the carboxyl group-containing compounds.
If it is desired to use acidic inorganic, organometallic or organic catalysts, then the process is carried out at temperatures from 60 to 140 C. Preference is given to working at temperatures of from 80 to 140, particularly preferably at 100 to 130 C.
õas originally filed"
It is also possible to use enzymes as catalysts, although their use is less preferred.
Enzymes which can be used for this purpose are selected, for example, from hydrolases (E.C. 3.-.-.-), and among these particularly from the esterases (E.C. 3.1.-.-), lipases (E.C. 3.1.1.3), glycosylases (E.C. 3.2.-.-) and proteases (E.C. 3.4.-.-), in free form or in a form immobilized physically or chemically on a support, preferably lipases, esterases or proteases and particularly preferably esterases (E.C. 3.1.-.-).
Very particular preference is given to Novozyme 435 (lipase from Candida antarctica B) or lipase from Alcaligenes sp., Aspergillus sp., Mucor sp., Penicilium sp., Geotricum sp., Rhizopus sp., Burkholderia sp., Candida sp., Pseudomonas sp., Thermomyces sp.
or porcine pancreas, particular preference being given to lipase from Candida antarctica B
or from Burkholderia sp.
The enzyme content in the reaction medium is generally in the range from about 0.1 to 10% by weight, based on the sum of the components used.
If it is desired to use enzymes as catalyst, then the process is carried out at temperatures from 20 and up to 120 C, preferably 20 to 100 C and particularly preferably not more than 20-80 C.
The process is preferably carried out under inert-gas atmosphere, i.e. a gas which is inert under the reaction conditions, for example under carbon dioxide, combustion gases, nitrogen or noble gases, among which argon in particular is to be mentioned.
The process is carried out at temperatures of from 60 to 140 C. Preference is given to working at temperatures of from 80 to 140, particularly preferably at 100 to 130 C.
The pressure conditions of the process are generally not critical. It is possible to work at significantly reduced pressure, for example at 10 to 500 mbar. The process can also be carried out at pressures above 500 mbar. For reasons of simplicity, the reaction is preferably at atmospheric pressure; however, an implementation at slightly elevated pressure, for example up to 1200 mbar, is also possible. It is also possible to work under significantly increased pressure, for example at pressures up to 10 bar.
Preferably, the reaction is at reduced pressure or atmospheric pressure, particularly preferably at atmospheric pressure.
õas originally filed"
The reaction time of the process is usually 10 minutes to 5 days, preferably 30 minutes to 48 hours and particularly preferably 1 to 12 hours.
When the reaction is complete, the highly functional branched polyesters can be isolated easily, for example by filtering off the catalyst and optionally stripping off the solvent, the stripping-off of the solvent usually being carried out at reduced pressure.
Further highly suitable work-up methods are precipitation of the polymer following the addition of water and subsequent washing and drying.
If required, the reaction mixture can be subjected to a decolorization, for example by treatment with activated carbon or metal oxides, such as e.g. aluminum oxide, silicon oxide, magnesium oxide, zirconium oxide, boron oxide or mixtures thereof, in amounts of, for example, 0.1-50% by weight, preferably 0.5 to 25% by weight, particularly preferably 1-10% by weight, at temperatures of, for example, 10 to 140 C, preferably 20 to 130 C and particularly preferably 30 to 120 C.
This can take place by adding the pulverulent or granular decolorizing agent to the reaction mixture and subsequent filtration, or by passing the reaction mixture over a bed of a decolorizing agent in the form of any desired suitable shaped bodies.
The decolorization of the reaction mixture can take place at any desired point in the work-up process, for example at the stage of the crude reaction mixture or following optional prewashing, neutralization, washing or solvent removal.
The reaction mixture can furthermore be subjected to a prewashing and/or a neutralization and/or a post-washing, preferably only to a neutralization.
Optionally, the order of neutralization and prewashing can also be swapped.
From the aqueous phase of the washing and/or neutralization it is possible to recover, at least partially, any valuable products present by means of acidification and extraction with a solvent, and to use them afresh.
In terms of processing, all extraction and washing processes and apparatuses known per se can be used for a washing or neutralization in the process, e.g. those which are described in Ullmann's Encyclopedia of Industrial Chemistry, 6th ed, 1999 Electronic Release, Chapter: Liquid ¨ Liquid Extraction ¨ Apparatus. For example, these may be ,,as originally filed"
single-stage or multi-stage, preferably single-stage, extractions, and also those in cocurrent or countercurrent mode, preferably countercurrent mode.
However, in one preferred embodiment, it is possible to dispense with a washing, 5 neutralization and decolorization.
The branched polyesters have molecular weights M5 of from 400 to 5000 g/mol, preferably 400 to 3000 g/mol, particularly preferably from 500 to 2500 g/mol, and molecular weights Mw of from 500 to 50 000 g/mol, preferably 700 to 25 000 g/mol, 10 particularly preferably 700 to 15 000.
The molecular weights of the branched polyesters were determined by gel permeation chromatography (GPC) (eluent: THF; standard: PMMA, detector: refractive index detector).
The branched polyesters have acid numbers of from 60 to 600 mg KOH/g of polymer, preferably 80 to 500 mg KOH/g of polymer and very particularly preferably 100 to 450 mg KOH/g of polymer. The acid numbers were determined in accordance with DIN 53402.
The branched polyesters have glass transition temperatures in the range from -50 to +50 C, preferably -40 to +40 C and very particularly preferably -30 to +40 C.
The glass transition temperature is determined by means of DSC (Differential Scanning Calorimetry) at a heating rate of 20 K/min.
Cleaner formulations A further embodiment of the invention is given by mixtures of the branched polyesters according to the invention. Besides the branched polyesters of the invention, such mixtures comprise further constituents such as solvents or surfactants.
These mixtures are preferably cleaners, washing compositions or detergents or mixtures for water treatment. The branched polyesters of the invention can be incorporated directly into the formulations (mixtures) in their various presentation forms by processes known to the person skilled in the art. In this connection, solid formulations such as powders, tablets and liquid formulations are to be mentioned.
,,as originally filed"
The invention therefore further provides the use of the branched polyesters according to the invention, or mixtures thereof, in washing compositions, cleaners or detergents, in particular in dishwashing compositions.
They can be used particularly advantageously in machine dishwashing compositions.
They are characterized here in particular by their deposit-inhibiting effect both towards inorganic and organic deposits. In particular, they inhibit deposits of calcium and magnesium carbonate and calcium and magnesium phosphates and phosphonates.
Additionally, they prevent deposits which originate from the soil constituents of the wash liquor, such as grease, protein and starch deposits.
The machine cleaning formulations according to the invention can be provided in liquid or solid form, in one or more phases, as tablets or in the form of other dosage units, packaged or unpackaged.
The branched polyesters can be used either in multicomponent product systems (separate use of detergent, rinse aid and regenerating salt) or in those dishwashing compositions in which the functions of detergent, rinse aid and regenerating salt are combined in one product (3-in-1 products, 6-in-1 products, 9-in-1 products, all-in-one products).
A preferred embodiment of the mixtures according to the invention is given by a cleaning formulation for machine dishwashing comprising as components:
a) 1 to 20% by weight of at least one polymer according to the invention, b) 0 to 50% by weight of complexing agents, c) 0 to 70% by weight of phosphates, d) 0 to 60% by weight of further builders and cobuilders, e) 0.1 to 20% by weight of nonionic surfactants, f) 0.1 to 30% by weight of bleaches and optionally bleach activators, g) 0 to 8% by weight of enzymes, h) 0 to 50% by weight of one or more further additives such as anionic or zwitterionic surfactants, bleach catalysts, alkali carriers, polymeric dispersants, corrosion inhibitors, antifoams, dyes, fragrances, fillers, tablet disintegrants, organic solvents, tableting auxiliaries, disintegrants, thickeners, solubility promoters and water, ,,as originally filed"
where the sum of components a) to h) is 100% by weight.
As component b), the cleaning formulations according to the invention can comprise one or more complexing agents. Preferred complexing agents are selected from the group consisting of nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, hydroxyethylethylenediaminetriacetic acid and methylglycinediacetic acid, glutamic acid diacetic acid, iminodisuccinic acid, hydroxyiminodisuccinic acid, ethylenediaminedisuccinic acid, aspartic acid diacetic acid, and salts thereof. Particularly preferred complexing agents b) are methylglycinediacetic acid and salts thereof.
As component c), the cleaner according to the invention can comprise phosphates. If the cleaner comprises phosphates, it generally comprises these in amounts of from 1 to 70% by weight, preferably from 5 to 60% by weight, particularly preferably from 20 to 55% by weight.
Among the large number of commercially available phosphates, the alkali metal phosphates, particularly preferably pentasodium or pentapotassium triphosphate (sodium or potassium tripolyphosphate), are of the greatest importance in the detergents and cleaners industry.
Of suitability as phosphates for dishwashing compositions are in particular alkali metal phosphates and polymeric alkali metal phosphates, which may be present in the form of their alkaline, neutral or acidic sodium or potassium salts. Examples of phosphates of this type are trisodium phosphate, tetrasodium diphosphate, disodium dihydrogen-diphosphate, pentasodium tripolyphosphate, so-called sodium hexametaphosphate, oligomeric trisodium phosphate with a degree of oligomerization of from 5 to 1000, preferably 5 to 50, and the corresponding potassium salts, or mixtures of sodium hexametaphosphate and the corresponding potassium salts, or mixtures of the sodium and potassium salts. Tripolyphosphate salts are particularly preferred. These are used in amounts of from 30 to 65% by weight, preferably 35 to 60% by weight, expressed as water-free active substance and based on the total cleaning formulation.
As component d), the cleaner according to the invention can comprise builders and cobuilders. Builders and cobuilders are water-soluble or water-insoluble substances whose main task consists in the binding of calcium and magnesium ions.
,,as originally filed"
These may be low molecular weight carboxylic acids and salts thereof such as alkali metal citrates, in particular anhydrous trisodium citrate or trisodium citrate dihydrate, alkali metal succinates, alkali metal malonates, fatty acid sulfonates, oxydisuccinate, alkyl- or alkenyldisuccinates, gluconic acids, oxadiacetates, carboxymethyloxysuccinates, tartrate monosuccinate, tartrate disuccinate, tartrate monoacetate, tartrate diacetate and a-hydroxypropionic acid.
A further substance class with cobuilder properties which may be present in the cleaners according to the invention is that of the phosphonates. These are in particular hydroxyalkane- and aminoalkanephosphonates. Among the hydroxyalkanephosphonates, 1-hydroxyethane-1,1-diphosphonate (HEDP) is of particular importance as cobuilder. It is preferably used as sodium salt, the disodium salt being neutral and the tetrasodium salt alkaline (pH 9). Suitable aminoalkanephosphonates are preferably ethylenediaminetetramethylenephosphonate (EDTMP), diethylenetriaminepentamethylenephosphonate (DTPMP), and higher homologs thereof. They are preferably used in the form of the neutral sodium salts, e.g.
as hexasodium salt of EDTMP or as hepta- and octasodium salt of DTPMP. As builder, preferably HEDP is used here from the class of phosphonates. The aminoalkanephosphonates moreover have a pronounced heavy metal binding capacity. Accordingly, especially if the compositions also comprise bleaches, it may be preferred to use aminoalkanephosphonates, in particular DTPMP, or to use mixtures of the specified phosphonates.
A further substance class in the builder system is that of the silicates.
Crystalline sheet silicates with the general formula NaMSi902x+1 yH20 may be present, where M is sodium or hydrogen, xis a number from 1.9 to 22, preferably from 1.9 to 4, where particularly preferred values for x are 2, 3 or 4 and y is a number from 0 to 33, preferably 0 to 20. In addition, amorphous sodium silicates with an Si02:Na20 ratio of 1 to 3.5, preferably from 1.6 to 3 and in particular from 2 to 2.8, can be used.
Furthermore, carbonates and hydrogencarbonates are used, of which the alkali metal salts, in particular sodium salts, are preferred. Preferred amounts are 5 to 50% by weight, particularly preferably 10 to 40% by weight and in particular 15 to 30% by weight.
,,as originally filed"
As component e), the cleaning formulations according to the invention comprise weakly foaming or low-foam nonionic surfactants. These are generally present in fractions of from 0.1 to 20% by weight, preferably from 0.1 to 15% by weight, particularly preferably from 0.25 to 10% by weight.
Suitable nonionic surfactants comprise the surfactants of the general formula (Ill) R18-0-(CH2CH20)p-(CHR17CH20)m-R19 (Ill) in which R18 is a linear or branched alkyl radical having 8 to 22 carbon atoms, R17 and R19, independently of one another, are hydrogen or a linear or branched alkyl radical having 1-10 carbon atoms or H, where R17 is preferably methyl, p and m, independently of one another, are 0 to 300. Preferably, p = 1-100 and m = 0-30.
The surfactants of the formula (Ill) may either be random copolymers or block copolymers, preference being given to block copolymers.
Furthermore, di- and multiblock copolymers, formed from ethylene oxide and propylene oxide, can be used, which are commercially available for example under the name Pluronic (BASF SE) or Tetronic (BASF Corporation). Furthermore, reaction products of sorbitan esters with ethylene oxide and/or propylene oxide can be used.
Likewise of suitability of amine oxides or alkyl glycosides. An overview of suitable nonionic surfactants is given in EP-A 851 023 and DE-A 198 19 187.
Mixtures of two or more different nonionic surfactants may also be present.
The formulations can also comprise anionic or zwitterionic surfactants, preferably in a mixture with nonionic surfactants. Suitable anionic and zwitterionic surfactants are likewise specified in EP-A 851 023 and DE-A 198 19 187.
As component f), the cleaning formulations according to the invention can comprise bleaches and optionally bleach activators.
Bleaches are subdivided into oxygen bleaches and chlorine-containing bleaches.
Alkali metal perborates and hydrates thereof, and also alkali metal percarbonates, are used õas originally filed"
as oxygen bleaches. Preferred bleaches here are sodium perborate in the form of the mono- or tetrahydrate, sodium percarbonate or the hydrates of sodium percarbonate.
Persulfates and hydrogen peroxide can likewise be used as oxygen bleaches.
Typical oxygen bleaches are also organic peracids, such as, for example, perbenzoic acid, peroxy-alpha-naphthoic acid, peroxylauric acid, peroxystearic acid, phthalimidoperoxycaproic acid, 1,12-diperoxydodecanedioic acid, 1,9-diperoxyazeleic acid, diperoxoisophthalic acid or 2-decyldiperoxybutane-1,4-dioic acid.
Moreover, the following oxygen bleaches may also be used in the cleaner formulation:
Cationic peroxy acids which are described in the patent applications US
5,422,028, US 5,294,362 and US 5,292,447, and sulfonyl peroxy acids which are described in the patent application US 5,039,447.
Oxygen bleaches are used in amounts of in general 0.5 to 30% by weight, preferably from 1 to 20% by weight, particularly preferably from 3 to 15 % by weight, based on the total cleaner formulation.
Chlorine-containing bleaches and the combination of chlorine-containing bleaches with peroxide-containing bleaches can likewise be used. Known chlorine-containing bleaches are, for example, 1,3-dichloro-5,5-dimethylhydantoin, N-chlorosulfamide, chloramine T, dichloramine T, chloramine B, N,N'-dichlorobenzoylurea, p-toluenesulfonedichloroamide or trichloroethylamine. Preferred chlorine-containing bleaches are sodium hypochlorite, calcium hypochlorite, potassium hypochlorite, magnesium hypochlorite, potassium dichloroisocyanurate or sodium dichloroisocyanurate.
Chlorine-containing bleaches are used in amounts of in general 0.1 to 20% by weight, preferably from 0.2 to 10% by weight, particularly preferably from 0.3 to 8%
by weight, based on the total cleaner formulation.
Furthermore, bleach stabilizers such as, for example, phosphonates, borates, metaborates, metasilicates or magnesium salts can be added in small amounts.
,,as originally filed"
Bleach activators are compounds which, under perhydrolysis conditions, produce aliphatic peroxocarboxylic acids having preferably 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and/or substituted perbenzoic acid. Compounds which comprise one or more N- or 0-acyl groups and/or optionally substituted benzoyl groups, for example substances from the class of anhydrides, esters, imides, acylated imidazoles or oximes, are suitable. Examples are tetraacetylethylenediamine (TAED), tetraacetylmethylenediamine (TAM D), tetraacetylglycoluril (TAGU), tetraacetylhexylenediamine (TAHD), N-acylimides, such as, for example, N-nonanoylsuccinimide (NOSI), acylated phenolsulfonates, such as, for example, n-nonanoyl- or isononanoyloxybenzenesulfonates (n- or iso-NOBS), pentaacetylglucose (FAG), 1,5-diacety1-2,2-dioxohexahydro-1,3,5-triazine (DADHT) or isatoic anhydride (ISA). Likewise suitable as bleach activators are nitrile quats such as, for example, N-methylmorpholinioacetonitrile salts (MMA salts) or trimethylammonioacetonitrile salts (TMAQ salts).
Preferably, bleach activators from the group consisting of polyacylated alkylenediamines, particularly preferably TAED, N-acylimides, particularly preferably NOSI, acylated phenolsulfonates, particularly preferably n- or iso-NOBS, MMA
and TMAQ are suitable.
Bleach activators are used in amounts of in general 0.1 to 10% by weight, preferably from 1 to 9% by weight, particularly preferably from 1.5 to 8% by weight, based on the total cleaner formulation.
In addition to the conventional bleach activators, or instead of them, so-called bleach catalysts can also be incorporated into the rinse-aid particles. These substances are bleach-boosting transition metal salts or transition metal complexes such as, for example, manganese-, iron-, cobalt-, ruthenium- or molybdenum-salen complexes or -carbonyl complexes. It is also possible to use manganese, iron, cobalt, ruthenium, molybdenum, titanium, vanadium and copper complexes with nitrogen-containing tripod ligands, as well as cobalt-, iron-, copper- and ruthenium-amine complexes as bleach catalysts.
As component g), the cleaning formulations according to the invention can comprise enzymes. Between 0 and 8% by weight of enzymes, based on the total preparation, can be added to the cleaner in order to increase the performance of the cleaner or to as originally filed"
,.
, ensure the same quality of cleaning performance under milder conditions. The enzymes used most often include lipases, amylases, cellulases and proteases.
Furthermore, esterases, pectinases, lactases and peroxidases, for example, can also be used.
The cleaners according to the invention can moreover comprise, as component i), further additives such as anionic or zwitterionic surfactants, bleach catalysts, alkali carriers, corrosion inhibitors, antifoams, dyes, fragrances, fillers, tablet disintegrants, organic solvents and water.
Furthermore, the cleaners according to the invention can comprise 0 to 50% by weight of one or more further additives such as alkali carriers, corrosion inhibitors, antifoams, dyes, fragrances, fillers, organic solvents, tableting auxiliaries, disintegrants, solubility promoters and water.
As further constituents of the cleaner formulation, alkali carriers may be present.
Besides the ammonium or alkali metal carbonates, ammonium or alkali metal hydrogen-carbonates and ammonium or alkali metal sesquicarbonates already specified among the builder substances, it is also possible to use ammonium or alkali metal hydroxides, ammonium or alkali metal silicates and ammonium or alkali metal metasilicates, and mixtures of the aforementioned substances, as alkali carriers.
As corrosion inhibitors, silver anticorrosives from the group of triazoles, benzotriazoles, bisbenzotriazoles, aminotriazoles, alkylaminotriazoles and transition metal salts or complexes can be used.
To prevent glass corrosion, which is evident from clouding, iridescence, streaking and lines on the glasses, glass corrosion inhibitors are used. Preferred glass corrosion inhibitors are from the group of magnesium, zinc and bismuth salts and complexes.
Paraffin oils and silicone oils can optionally be used as antifoams and for protecting plastic and metal surfaces. Antifoams are generally used in fractions of from 0.001% by weight to 5% by weight. Moreover, dyes such as, for example, patent blue, preservatives such as, for example, Kathon CG, perfumes and other fragrances can be added to the cleaning formulation according to the invention.
,,as originally filed"
23 =
A suitable filler is, for example, sodium sulfate.
The invention further provides the use of the branched polyesters according to the invention and mixtures thereof as scale inhibitors in water-conveying systems.
Water-conveying systems in which the polymers according to the invention can be used are processes for water treatment, in particular seawater and brackish water desalination plants, cooling water systems and boiler feed water systems and industrial process waters. The desalination plants can be thermal in nature or be based on membrane processes such as reverse osmosis or electrodialysis.
In general, the polymers according to the invention are added to the water-conveying systems in amounts of from 0.1 mg/I to 100 mg/I. The optimum dosage is governed by the requirements of the particular application and/or by the operating conditions of the respective process. For example, the polymers are preferably used in concentrations of from 0.5 mg/I to 10 mg/I in the case of thermal seawater desalination. In industrial cooling circuits or boiler feed water systems, polymer concentrations up to 100 mg/I are used. Often, water analyses are carried out in order to ascertain the fraction of scale-forming salts and thus the optimum dosage.
It is also possible to add to the water-conveying systems formulations which, besides the polymers according to the invention, can comprise according to requirements, inter alia, phosphonates, polyphosphates, zinc salts, molybdate salts, organic corrosion inhibitors such as benzotriazole, tolyltriazole, benzimidazole or ethynylcarbinol alkoxylates, biocides, complexing agents and/or surfactants. Examples of phosphonates are 1-hydroxyethane-1,1-diphosphonic acid (HEDP), 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC), aminotrimethylenephosphonic acid (ATMP), diethylenetriaminepenta(methylenephosphonic acid) (DTPMP) and ethylenediaminetetra(methylenephosphonic acid) (EDTMP), which are used in each case in acid form or in the form of their sodium salts.
The present invention provides branched polyesters which can be used for cleaning purposes and for the purpose of water treatment and are nevertheless biodegradable.
These polymeric effect substances, which have a low toxicity, can be prepared by means of a technically relatively simple and cost-effective process and can be readily incorporated into formulations for cleaning purposes in their various presentation forms.
as originally filed"
The invention is further illustrated by the examples, without the examples limiting the subject matter of the invention.
Examples Preparation of the polyesters according to the invention General remarks:
The molecular weights were determined by gel permeation chromatography (GPO) (eluent: THF; standard: PMMA; detector: refractive index detector).
The acid numbers (mg KOH/g of polymer) were determined in accordance with DIN 53402.
TMP is understood as meaning trimethylolpropane.
TMP x n EO is understood as meaning trimethylolpropane alkoxylated with n mol of ethylene oxide, where n can be an average value (number-average).
PEG 200 is understood as meaning a polyethylene glycol with an average molecular weight of 200 g/mol.
Polyglycerol 3 is understood as meaning triglycerol.
Polymer 1: Polycondensate of citric acid monohydrate/TMP 1.5:1.0 A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 210.4 g (1.00 mol) of citric acid monohydrate and 89.6 g (0.67 mol) of TMP, and 0.1 g (400 ppm) of titanium(IV) tetrabutoxide. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 345 mg KOH/g of polymer Mr, = 570 g/mol, M, = 2580 g/mol Polymer 2: Polycondensate of citric acid monohydrate/TMP 2.0:1.0 ,,as originally filed"
A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 151.6 g (0.77 mol) of citric acid monohydrate and 48.8 g (0.37 mol) of TMP, and 0.06 g (300 ppm) of titanium(IV) tetrabutoxide. Under nitrogen gassing, the mixture was 5 heated to 130 C and held at this temperature for 2 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
10 Acid number = 398 mg KOH/g of polymer M, = 550 g/mol, Mw = 3990 g/mol Polymer 3: Polycondensate of citric acid monohydrate/TMP/TMPx12.2 EO
1.7:0.5:0.5 15 A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 141.1 g (0.67 mol) of citric acid monohydrate, 132.4 g (0.20 mol) of TMP x 12 EO and 26.5 g (0.20 mol) of TMP, and 0.1 g (400 ppm) of titanium(IV) tetrabutoxide. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2.5 h with 20 stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
25 Acid number = 262 mg of KOH/g of polymer Mn = 1170 g/mol, Mw = 2260 g/mol Polymer 4: Polycondensate of citric acid monohydrate/polyglycerol 3 ¨ 3.0:1.0 A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 217.4 g (1.03 mol) of citric acid monohydrate and 82.4 g (0.34 mol) of polyglycerol 3, and 0.015 g (50 ppm) of sulfuric acid. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 4 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
õas originally filed"
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 428 mg of KOH/g of polymer Mn = 1320 g/mol, M, = 1600 g/mol Polymer 5: Polycondensate of citric acid monohydrate/polyglycerol 3/TMP
Polymers obtainable by free-radical polymerization and composed of carboxyl-group-containing and/or sulfonic acid-group-containing monomers have been an important constituent of phosphate-containing and phosphate-free machine dishwashing detergents for many years. By virtue of their soil-dispersing and deposit-inhibiting effect, they make a considerable contribution to the cleaning and rinsing performance of machine dishwashing compositions. For instance, they ensure that no salt deposits of the hardness-forming calcium and magnesium ions remain on the ware.
as originally filed"
Homopolymers of acrylic acid or copolymers of acrylic acid and 2-acrylamido-2-methylpropanesulfonic acid are often used for this purpose.
These polymers are also used in water-conveying systems as agents for preventing mineral deposits such as e.g. calcium and magnesium sulfate, magnesium hydroxide, calcium and barium sulfate and calcium phosphate on heat transfer surfaces or in pipelines. Water-conveying systems to be mentioned here are inter alia cooling and boiler feed water systems and industrial process waters. However, these polymers are also used as scale inhibitors in the desalination of seawater or brackish water by distillation and by membrane processes such as reverse osmosis or electrodialysis.
One disadvantage of these polymers obtainable by free-radical polymerization and composed of carboxyl-group-containing and/or sulfonic acid-group-containing monomers is that they are not biodegradable. Biodegradable polymers such as, for example, polyaspartic acid, however, have struggled to gain acceptance commercially due to the high production costs.
It was therefore the object of the invention to provide substances which can be used for cleaning purposes, in particular as additive to phosphate-containing and phosphate-free cleaner formulations for machine dishwashing, and for the purpose of scale inhibition in water-conveying systems, and are biodegradable. It was a further object of the invention to provide substances which can be readily incorporated into formulations for cleaning purposes in their various presentation forms.
These and other objects are achieved, as is evident from the disclosure of the present invention, by the various embodiments of the invention, in particular by the use of branched polyesters obtainable by polycondensation of a. citric acid (component A) with b. at least one polyalcohol (component B) and c. optionally a polycarboxylic acid component (component C) and optionally reaction with d. at least one component D selected from the group consisting of: C6-C30 alkyl- or alkenylcarboxylic acids, 06-030 alkyl or alkenyl alcohols, 06-030 alkyl- or alkenylamines, 06-030 aliphatic isocyanates during the polycondensation or subsequently ,,as originally filed"
, as additive in washing compositions, cleaners, detergents or a formulation for water treatment.
The molar ratio of citric acid to polyalcohol is 5.0:1.0 to 1.0:1.5.
Preferably, the molar ratio of citric acid to polyalcohol is 3.5:1 to 1.0:1.5.
In a further preferred embodiment of the process according to the invention, hydrophobically modified branched polyesters are used.
Within the context of the present invention, hydrophobically modified branched polyesters are understood as meaning modified polyesters of citric acid and at least one polyhydroxyl compound and optionally one polycarboxylic acid in which the accessible hydroxyl and/or carboxyl groups have at least partially been further modified, i.e. have been reacted with reagents which alter the properties of the polyesters modified in this way. Properties in this connection are solubility, dispersibility and hydrophobicity.
The modification of the polyester preferably takes place with the polyesters according to the invention of citric acid and polyhydroxyl compounds, as are described above.
Hydrophobically modified branched polyesters of citric acid and polyhydroxyl compounds can be obtained by adding alkyl- or alkenylcarboxylic acids, alkyl or alkenyl alcohols, alkyl- or alkenylamines and/or aliphatic isocyanates during the condensation reaction or by means of a subsequent reaction.
The hydrophobically modified polyesters have proven to be advantageous for cleaning ware items heavily soiled with domestic fats. In addition, they can be converted easily into solid forms. In particular, the production of granules is facilitated by the hydrophobicization step.
Particular preference is given to the use of hydrophobically modified branched polyesters which are obtained by adding alkyl- or alkenylcarboxylic acids during the condensation reaction or in a subsequent reaction step.
In order to achieve an amphiphilic character, the highly functional, highly branched polyesters of citric acid and polyhydroxyl compounds (during the condensation reaction ,,as originally filed"
, . 4 or subsequently) can also be reacted with hydrophobic and hydrophilic agents, for example with long-chain alkyl- or alkenylcarboxylic acids, alkyl or alkenyl alcohols, alkyl- or alkenylamines or isocyanates and simultaneously with mono-, di- or higher-functional alcohols, amines, acids or isocyanates having polyethylene glycol chains.
Hyperbranched polyesters are preferably suitable. Within the context of this invention, hyperbranched polyesters are understood as meaning uncrosslinked polyesters with hydroxyl and carboxyl groups which are both structurally and molecularly nonuniform.
Within the context of this specification, uncrosslinked means that a degree of crosslinking of less than 15% by weight, preferably of less than 10% by weight, determined via the insoluble fraction of the polymer, is present.
Hyperbranched polyesters can on the one hand be formed starting from a central molecule analogously to dendrimers, but with nonuniform chain length of the branches.
On the other hand, they can also have a linear structure, with functional side groups, or else, being a combination of the two extremes, have linear and branched molecular moieties. For the definition of dendrimers and hyperbranched polymers, see also P.J. Flory, J. Am. Chem. Soc. 1952, 74, 2718 and H. Frey et al., Chemistry - A
European Journal, 2000, 6, No. 14, 2499.
In connection with the present invention, "hyperbranched" is understood as meaning that the degree of branching (DB) is 10 to 99.9%, preferably 20 to 99%, particularly preferably 20- 95%. The degree of branching DB is defined here as DB CYO = (T
+ Z) /
(T + Z + L) x 100, where T is the average number of terminally bonded monomer units, Z is the average number of monomer units forming branches, L is the average number of linearly bonded monomer units.
In connection with the present invention, "dendrimeric" is understood as meaning that the degree of branching is 99.9-100%. For the definition of the "Degree of Branching", see H. Frey et al., Acta Polym. 1997, 48, 30-35.
Component A
,,as originally filed"
According to the invention, citric acid is understood as meaning citric acid anhydrate and also the hydrates of citric acid, such as, for example, citric acid monohydrate.
Component B
According to the invention, suitable polyalcohols are alcohols with at least two hydroxyl groups and up to six hydroxyl groups. Preferably, diols or triols or mixtures of different diols and/or triols are contemplated. Suitable polyalcohols are, for example, polyetherols. The polyetherols can be obtained by reaction with ethylene oxide, propylene oxide and/or butylene oxide. In particular, polyetherols based on ethylene oxide and/or propylene oxide are suitable. It is also possible to use mixtures of such polyetherols.
Suitable diols are, for example ethylene glycol, propane-1,2-diol, propane-1,3-diol, butane-1,2-diol, butane-1,3-diol, butane-1,4-diol, butane-2,3-diol, pentane-1,2-diol, pentane-1,3-diol, pentane-1,4-diol, pentane-1,5-diol, pentane-2,3-diol, pentane-2,4-diol, hexane-1,2-diol, hexane-1,3-diol, hexane-1,4-diol, hexane-1,5-diol, hexane-1,6-diol, hexane-2,5-diol, heptane-1,2-diol, 1,7-heptanediol, 1,8-octanediol, 1,2-octanediol, 1,9-nonanediol, 1,2-decandiol, 1,10-decandiol, 1,2-dodecandiol, 1,12-dodecandiol, 1,5-hexadiene-3,4-diol, 1,2- and 1,3-cyclopentanediols, 1,2-, 1,3- and 1,4-cyclohexanediols, 1,1-, 1,2-, 1,3- and 1,4-bis(hydroxymethyl)cyclohexanes, 1,1-, 1,2-, 1,3- and 1,4-bis(hydroxyethyl)cyclohexanes, neopentyl glycol, (2)-methy1-2,4-pentanediol, 2,4-dimethy1-2,4-pentanediol, 2-ethyl-1,3-hexanediol, 2,5-dimethy1-2,5-hexanediol, 2,2,4-trimethy1-1,3-pentanediol, pinacol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, polyethylene glycols HO(CH2CH20)n-H or polypropylene glycols HO(CH[CH3]CH20)0-H, where n is an integer and n ?. 4, polyethylene polypropylene glycols, where the sequence of the ethylene oxide of the propylene oxide units can be blockwise or random, polytetramethylene glycols, preferably up to a molecular weight up to 5000 g/mol, poly-1,3-propanediols, preferably with a molecular weight up to 5000 g/mol, polycaprolactones or mixtures of two or more representatives of the above compounds. For example, one to six, preferably one to four, particularly preferably one to three, very particularly preferably one to two and in particular one diol can be used. Here, one or both hydroxyl groups in the diols specified above can be substituted by SH groups. Diols preferably used are ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,8-octanediol, 1,2-, 1,3- and 1,4-cyclohexanediol, 1,3- and 1,4-õas originally filed÷
bis(hydroxymethyl)cyclohexane, and diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol and polyethylene glycols with an average molecular weight between 200 and 1000 g/mol.
The dihydric polyalcohols can optionally also comprise further functionalities such as, for example, carbonyl, carboxyl, alkoxycarbonyl or sulfonyl, such as, for example, dimethylolpropionic acid or dimethylolbutyric acid, and C1-C4-alkyl esters thereof, although the alcohols preferably have no further functionalities.
Preferred diols are ethylene glycol, diethylene glycol and polyethylene glycol with an average molecular weight between 200 and 1000 g/mol.
Suitable triols or higher-functional polyalcohols are, for example, glycerol, trimethylolmethane, trimethylolethane, trimethylolpropane, bis(trimethylolpropane), trimethylolbutane, trimethylolpentane, 1,2,4-butanetriol, 1,2,6-hexanetriol, tris(hydroxymethyl)amine, tris(hydroxyethyl)amine, tris(hydroxypropyl)amine, pentaerythritol, diglycerol, triglycerol or higher condensation products of glycerol, di(trimethylolpropane), di(pentaerythritol), tris(hydroxymethyl) isocyanurate, tris(hydroxyethyl) isocyanurate (THE IC), tris(hydroxypropyl) isocyanurate and N-[1,3-bis(hydroxymethyl)-2,5-dioxo-4-imidazolidiny1]-N,N'-bis(hydroxymethyOurea.
Preferred triols are trimethylolpropane, trimethylolethane, glycerol, diglycerol and triglycerol, and polyetherols thereof based on ethylene oxide and/or propylene oxide.
Also suitable are furthermore sugars or sugar alcohols, such as, for example, glucose, fructose or sucrose, sugar alcohols such as e.g. sorbitol, mannitol, threitol, erythritol, adonitol (ribitol), arabitol (lyxitol), xylitol, dulcitol (galactitol), maltitol, isomalt, or inositol.
Also suitable are tri- or higher-functional polyetherols based on tri- or higher-functional alcohols which are obtained by reaction with ethylene oxide, propylene oxide and/or butylene oxide, or mixtures of such reaction products.
It is also possible to use mixtures of at least trifunctional polyalcohols.
For example, one to six, preferably one to four, particularly preferably one to three, very particularly preferably one to two and in particular one at least trifunctional alcohol can be used.
,,as originally filed"
In this connection, ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, and diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, polyethylene glycol with an average molecular weight between 200 and 1000 g/mol, glycerol, diglycerol, triglycerol, trimethylolpropane, trimethylolethane, di(trimethylolpropane), 1,2,4-butanetriol, 1,2,6-hexanetriol, pentaerythritol, sucrose, sorbitol or glucaric acid, and polyetherols thereof based on ethylene oxide and/or propylene oxide, or a mixture thereof are preferred as component B.
Particular preference is given to diethylene glycol or polyethylene glycol with an average molecular weight between 200 and 1000 g/mol, trimethylolpropane, glycerol or diglycerol, triglycerol, and polyetherols thereof based on ethylene oxide and/or propylene oxide, or a mixture thereof.
Component C
In addition to the citric acid, further carboxylic acids, in particular saturated dicarboxylic acids, can be condensed in, in which case the fraction of further polycarboxylic acids should be at most 30 molc1/0 compared with the amount of citric acid used.
Preferably, the polycarboxylic acids of component C comprise no sulfonate groups.
Suitable saturated dicarboxylic acids are, for example, aliphatic dicarboxylic acids, such as oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azeleic acid, sebacic acid, undecane-a,w-dicarboxylic acid, dodecane-a,w-dicarboxylic acid, cis- and trans-cyclohexane-1,2-dicarboxylic acid, cis-and trans-cyclohexane-1,3-dicarboxylic acid, cis- and trans-cyclohexane-1,4-dicarboxylic acid, cis- and trans-cyclopentane-1,2-dicarboxylic acid, cis- and trans-cyclopentane-1,3-dicarboxylic acid.
The specified saturated dicarboxylic acids can also be substituted with one or more radicals selected from C1-C20-alkyl groups, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec-pentyl, neopentyl, 1,2-dimethylpropyl, isoamyl, n-hexyl, isohexyl, sec-hexyl, n-heptyl, isoheptyl, n-octyl, 2-ethylhexyl, trimethylpentyl, n-nonyl, n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-octadecyl, or n-eicosyl, as originally filed"
, ' 8 C2-C20-alkenyl groups, for example butenyl, hexenyl, octenyl, decenyl, dodecenyl, tetradecenyl, hexadecenyl, octadecenyl or eicosenyl, C3-C12-cycloalkyl groups, for example cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl, cycloundecyl and cyclododecyl; preference is given to cyclopentyl, cyclohexyl and cycloheptyl;
alkylene groups such as methylene or ethylidene or C6-C14-aryl groups such as, for example, phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, 1-phenanthryl, 2-phenanthryl, 3-phenanthryl, 4-phenanthryl and 9-phenanthryl, preferably phenyl, 1-naphthyl and 2-naphthyl, particularly preferably phenyl.
Exemplary representatives of substituted dicarboxylic acids or derivatives thereof which may be mentioned are: 2-methylmalonic acid, 2-ethylmalonic acid, 2-phenylmalonic acid, 2-methylsuccinic acid, 2-ethylsuccinic acid, 2-phenylsuccinic acid, 3,3-dimethylglutaric acid, dodecenylsuccinic acid, hexadecenylsuccinic acid and octadecenylsuccinic acid.
The dicarboxylic acids can either be used as they are or in the form of derivatives.
Derivatives are preferably understood as meaning the relevant anhydrides in monomeric or else polymeric form, mono- or dialkyl esters, preferably mono- or di-C1-C4-alkyl esters, particularly preferably mono- or dimethyl esters or the corresponding mono- or diethyl esters, as well as mixed esters, preferably mixed esters with different C1-C4-alkyl components, particularly preferably mixed methyl ethyl esters.
Among these, preference is given to the anhydrides and the mono- or dialkyl esters, particularly preferably the anhydrides and the mono- or di-C1-C4-alkyl esters and very particularly preferably the anhydrides.
Within the context of this specification, C1-C4-alkyl means methyl, ethyl, isopropyl, n-propyl, n-butyl, isobutyl, sec-butyl and tert-butyl, preferably methyl, ethyl and n-butyl, particularly preferably methyl and ethyl and very particularly preferably methyl.
,,as originally filed"
, Particularly preferably, malonic acid, succinic acid, glutaric acid, adipic acid, sebacic acid, octadecenylsuccinic anhydride, 1,2-, 1,3- or 1,4-cyclohexanedicarboxylic acids (hexahydrophthalic acids as cis or trans compounds or mixtures thereof) are used.
Further preferred dicarboxylic acids are glucaric acid and tartaric acid.
The amount of dicarboxylic acid is not more than 30 mol% compared with the amount of citric acid used, preferably not more than 20%, very particularly preferably not more than 15%.
Component D
Suitable components D are alkyl- or alkenylcarboxylic acids, such as, for example, long-chain, linear or branched carboxylic acids having 6 to 30 carbon atoms, preferably 8 to 22 carbon atoms, in particular 10 to 18 carbon atoms, in the alkyl or alkenyl radical, such as octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, hexadecanoic acid, arachic acid, behenic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid or Li, Na, K, Cs, Ca or ammonium salts thereof.
It is also possible to use mixtures.
Preferably, oleic acid, palmitic acid, linoleic acid, stearic acid, lauric acid and ricinoleic acid are used.
The alkyl- or alkenylcarboxylic acids can also be used in the form of their carboxylic acid alkyl esters. Preference is given to using the methyl esters.
Suitable long-chain alcohols are, for example, linear or branched alcohols having 6 to carbon atoms, preferably 8 to 22 carbon atoms, in particular 10 to 18 carbon atoms in the linear or branched alkyl radical, such as octan-1-ol, decan-1-ol, lauryl alcohol, 30 myristyl alcohol, cetyl alcohol, stearyl alcohol, eicosanol, behenyl alcohol, 9-hexadecen-1-ol and 9-octadecen-1-ol.
Preference is given to using lauryl alcohol and stearyl alcohol.
Exemplary representatives of alkyl- or alkenylamines which may be mentioned are:
linear or branched alkylamines having 6 to 30 carbon atoms, preferably 8 to 22 carbon atoms, in particular 10 to 18 carbon atoms, in the linear or branched alkyl radical, such ,,as originally filed"
as hexylamine, octylamine, nonylamine, decylamine, dodecylamine, tetradecylamine, hexadecylamine, octadecylamine and mixtures thereof.
Suitable long-chain isocyanates are linear or branched isocyanates having 6 to 5 carbon atoms, preferably 8 to 22 carbon atoms, in particular 10 to 18 carbon atoms, in the linear or branched alkyl radical, such as octyl isocyanate, dodecyl isocyanate, stearic isocyanate and mixtures thereof.
The molar ratio of (component A + component B) to component D is preferably 10:0.1 10 to 0.5:0.1, particularly preferably 5:0.1 to 1:0.1.
The present invention further provides hydrophobicized branched polyesters as described above and the process for the preparation thereof.
Preparation process The process for preparing the branched polyesters based on citric acid can be carried out without dilution or in the presence of an organic solvent. Suitable solvents are, for example, hydrocarbons such as paraffins or aromatics. Particularly suitable paraffins are n-heptane and cyclohexane. Particularly suitable aromatics are toluene, ortho-xylene, meta-xylene, para-xylane, xylene as isomer mixture, ethylbenzene, chlorobenzene and ortho- and meta-dichlorobenzene. Furthermore, suitable solvents in the absence of acidic catalysts are very particularly ethers, such as, for example, dioxane or tetrahydrofuran, and ketones such as, for example, methyl ethyl ketone and methyl isobutyl ketone.
The amount of added solvent is at least 0.1% by weight, based on the mass of the starting materials used and to be reacted, preferably at least 1% by weight and particularly preferably at least 10% by weight. It is also possible to use excesses of solvent, based on the mass of starting materials used and to be reacted, for example 1.01-to 10-fold.
Preferably, the reaction is carried out without addition of solvent.
To carry out the process, it is possible to work in the presence of a water-withdrawing agent as additive, which is added at the start of the reaction. Of suitability are, for example, molecular sieves, in particular 4A molecular sieve, MgSO4 and Na2SO4.
,,as originally filed"
, During the reaction, it is also possible to add further water-withdrawing agent or to replace water-withdrawing agent with fresh water-withdrawing agent. During the reaction, it is also possible to distill off water and/or alcohol that is formed and, for example, to use a water separator, in which the water is removed with the help of an entrainer.
Preferably, the process is carried out in the absence of catalysts.
However, it is also possible to carry out the process in the presence of at least one catalyst. As preferred catalysts may acidic inorganic, organometallic or organic catalysts or mixtures of two or more acidic inorganic, organometallic or organic catalysts.
Within the context of this specification, acidic catalysts are considered to be Lewis acids, i.e. those compounds according to Rompps Chemie-Lexikon, under "Saure-Base-Begrifr [Acids and Bases], which can accept an electron pair into the valence shell of one of their atoms.
Acidic inorganic catalysts to be mentioned are, for example, sulfuric acid, sulfates and hydrogensulfates, such as sodium hydrogensulfate, phosphoric acid, phosphonic acid, hydrophosphorous acid, aluminum sulfate hydrate, alum, acidic silica gel (pH 5 6, in particular 5 5) and acidic aluminum oxide. Furthermore, it is possible to use, for example, aluminum compounds of the general formula Al(0R1)3 and titanates of the general formula Ti(0R1)4 as acidic inorganic catalysts, where the radicals R1 may in each case be identical or different and, independently of one another, are selected from C1-C20-alkyl radicals, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec-pentyl, neopentyl, 1,2-dimethylpropyl, isoamyl, n-hexyl, isohexyl, sec-hexyl, n-heptyl, isoheptyl, n-octyl, 2-ethylhexyl, n-nonyl, n-decyl, n-dodecyl, n-hexadecyl or n-octadecyl, C3-C12-cycloalkyl radicals, for example cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl, cycloundecyl and cyclododecyl; preference is given to cyclopentyl, cyclohexyl and cycloheptyl.
Preferably, the radicals R1 in Al(0R1)3 and Ti(0R1)4 are in each case identical and selected from n-butyl, isopropyl, 2-ethylhexyl, n-octyl, decyl or dodecyl.
Preference is given to using titanium(IV) tetrabutoxide.
,,as originally filed"
Preferred acidic organometallic catalysts are selected for example from dialkyltin oxides (R1)2SnO or dialkyltin diesters (R1)2Sn(0R2)2, where R' is as defined above and can be identical or different.
R2 can have the same meanings as R1 and additionally be C6-C12-aryl, for example phenyl, o-, m- or p-tolyl, xylyl or naphthyl. R2 can in each case be identical or different.
Examples are of organotin catalysts are tin(II) n-octanoate, tin(II) 2-ethylhexanoate, tin(II) laurate, dibutyltin oxide, diphenyltin oxide, dibutyltin dichloride, dibutyltin diacetate, dibutyltin dilaurate, dibutyltin dimaleate or dioctyltin diacetate.
Organoantimony, organobismuth or organoaluminum catalysts are also conceivable.
Particularly preferred representatives of acidic organometallic catalysts are dibutyltin oxide, diphenyltin oxide and dibutyltin dilaurate.
Preferred acidic organic catalysts are acidic organic compounds with, for example, phosphate groups, sulfonic acid groups, sulfate groups or phosphonic acid groups.
Particular preference is given to sulfonic acids such as, for example, para-toluenesulfonic acid. It is also possible to use acidic ion exchangers as acidic organic catalysts, for example sulfonic acid-group-containing polystyrene resins which have been crosslinked with about 2 mol /0 of divinylbenzene.
Combinations of two or more of the aforementioned catalysts can also be used.
It is also possible to use those organic or organometallic or else inorganic catalysts which are present in the form of discrete molecules, in immobilized form, for example on silica gel or on zeolites.
If it is desired to use acidic inorganic, organometallic or organic catalysts, then the amount used is preferably 1 to 10 000 ppm by weight of catalyst, particularly preferably 2 to 5000 ppm by weight, based on the total mass of the hydroxyl group- and the carboxyl group-containing compounds.
If it is desired to use acidic inorganic, organometallic or organic catalysts, then the process is carried out at temperatures from 60 to 140 C. Preference is given to working at temperatures of from 80 to 140, particularly preferably at 100 to 130 C.
õas originally filed"
It is also possible to use enzymes as catalysts, although their use is less preferred.
Enzymes which can be used for this purpose are selected, for example, from hydrolases (E.C. 3.-.-.-), and among these particularly from the esterases (E.C. 3.1.-.-), lipases (E.C. 3.1.1.3), glycosylases (E.C. 3.2.-.-) and proteases (E.C. 3.4.-.-), in free form or in a form immobilized physically or chemically on a support, preferably lipases, esterases or proteases and particularly preferably esterases (E.C. 3.1.-.-).
Very particular preference is given to Novozyme 435 (lipase from Candida antarctica B) or lipase from Alcaligenes sp., Aspergillus sp., Mucor sp., Penicilium sp., Geotricum sp., Rhizopus sp., Burkholderia sp., Candida sp., Pseudomonas sp., Thermomyces sp.
or porcine pancreas, particular preference being given to lipase from Candida antarctica B
or from Burkholderia sp.
The enzyme content in the reaction medium is generally in the range from about 0.1 to 10% by weight, based on the sum of the components used.
If it is desired to use enzymes as catalyst, then the process is carried out at temperatures from 20 and up to 120 C, preferably 20 to 100 C and particularly preferably not more than 20-80 C.
The process is preferably carried out under inert-gas atmosphere, i.e. a gas which is inert under the reaction conditions, for example under carbon dioxide, combustion gases, nitrogen or noble gases, among which argon in particular is to be mentioned.
The process is carried out at temperatures of from 60 to 140 C. Preference is given to working at temperatures of from 80 to 140, particularly preferably at 100 to 130 C.
The pressure conditions of the process are generally not critical. It is possible to work at significantly reduced pressure, for example at 10 to 500 mbar. The process can also be carried out at pressures above 500 mbar. For reasons of simplicity, the reaction is preferably at atmospheric pressure; however, an implementation at slightly elevated pressure, for example up to 1200 mbar, is also possible. It is also possible to work under significantly increased pressure, for example at pressures up to 10 bar.
Preferably, the reaction is at reduced pressure or atmospheric pressure, particularly preferably at atmospheric pressure.
õas originally filed"
The reaction time of the process is usually 10 minutes to 5 days, preferably 30 minutes to 48 hours and particularly preferably 1 to 12 hours.
When the reaction is complete, the highly functional branched polyesters can be isolated easily, for example by filtering off the catalyst and optionally stripping off the solvent, the stripping-off of the solvent usually being carried out at reduced pressure.
Further highly suitable work-up methods are precipitation of the polymer following the addition of water and subsequent washing and drying.
If required, the reaction mixture can be subjected to a decolorization, for example by treatment with activated carbon or metal oxides, such as e.g. aluminum oxide, silicon oxide, magnesium oxide, zirconium oxide, boron oxide or mixtures thereof, in amounts of, for example, 0.1-50% by weight, preferably 0.5 to 25% by weight, particularly preferably 1-10% by weight, at temperatures of, for example, 10 to 140 C, preferably 20 to 130 C and particularly preferably 30 to 120 C.
This can take place by adding the pulverulent or granular decolorizing agent to the reaction mixture and subsequent filtration, or by passing the reaction mixture over a bed of a decolorizing agent in the form of any desired suitable shaped bodies.
The decolorization of the reaction mixture can take place at any desired point in the work-up process, for example at the stage of the crude reaction mixture or following optional prewashing, neutralization, washing or solvent removal.
The reaction mixture can furthermore be subjected to a prewashing and/or a neutralization and/or a post-washing, preferably only to a neutralization.
Optionally, the order of neutralization and prewashing can also be swapped.
From the aqueous phase of the washing and/or neutralization it is possible to recover, at least partially, any valuable products present by means of acidification and extraction with a solvent, and to use them afresh.
In terms of processing, all extraction and washing processes and apparatuses known per se can be used for a washing or neutralization in the process, e.g. those which are described in Ullmann's Encyclopedia of Industrial Chemistry, 6th ed, 1999 Electronic Release, Chapter: Liquid ¨ Liquid Extraction ¨ Apparatus. For example, these may be ,,as originally filed"
single-stage or multi-stage, preferably single-stage, extractions, and also those in cocurrent or countercurrent mode, preferably countercurrent mode.
However, in one preferred embodiment, it is possible to dispense with a washing, 5 neutralization and decolorization.
The branched polyesters have molecular weights M5 of from 400 to 5000 g/mol, preferably 400 to 3000 g/mol, particularly preferably from 500 to 2500 g/mol, and molecular weights Mw of from 500 to 50 000 g/mol, preferably 700 to 25 000 g/mol, 10 particularly preferably 700 to 15 000.
The molecular weights of the branched polyesters were determined by gel permeation chromatography (GPC) (eluent: THF; standard: PMMA, detector: refractive index detector).
The branched polyesters have acid numbers of from 60 to 600 mg KOH/g of polymer, preferably 80 to 500 mg KOH/g of polymer and very particularly preferably 100 to 450 mg KOH/g of polymer. The acid numbers were determined in accordance with DIN 53402.
The branched polyesters have glass transition temperatures in the range from -50 to +50 C, preferably -40 to +40 C and very particularly preferably -30 to +40 C.
The glass transition temperature is determined by means of DSC (Differential Scanning Calorimetry) at a heating rate of 20 K/min.
Cleaner formulations A further embodiment of the invention is given by mixtures of the branched polyesters according to the invention. Besides the branched polyesters of the invention, such mixtures comprise further constituents such as solvents or surfactants.
These mixtures are preferably cleaners, washing compositions or detergents or mixtures for water treatment. The branched polyesters of the invention can be incorporated directly into the formulations (mixtures) in their various presentation forms by processes known to the person skilled in the art. In this connection, solid formulations such as powders, tablets and liquid formulations are to be mentioned.
,,as originally filed"
The invention therefore further provides the use of the branched polyesters according to the invention, or mixtures thereof, in washing compositions, cleaners or detergents, in particular in dishwashing compositions.
They can be used particularly advantageously in machine dishwashing compositions.
They are characterized here in particular by their deposit-inhibiting effect both towards inorganic and organic deposits. In particular, they inhibit deposits of calcium and magnesium carbonate and calcium and magnesium phosphates and phosphonates.
Additionally, they prevent deposits which originate from the soil constituents of the wash liquor, such as grease, protein and starch deposits.
The machine cleaning formulations according to the invention can be provided in liquid or solid form, in one or more phases, as tablets or in the form of other dosage units, packaged or unpackaged.
The branched polyesters can be used either in multicomponent product systems (separate use of detergent, rinse aid and regenerating salt) or in those dishwashing compositions in which the functions of detergent, rinse aid and regenerating salt are combined in one product (3-in-1 products, 6-in-1 products, 9-in-1 products, all-in-one products).
A preferred embodiment of the mixtures according to the invention is given by a cleaning formulation for machine dishwashing comprising as components:
a) 1 to 20% by weight of at least one polymer according to the invention, b) 0 to 50% by weight of complexing agents, c) 0 to 70% by weight of phosphates, d) 0 to 60% by weight of further builders and cobuilders, e) 0.1 to 20% by weight of nonionic surfactants, f) 0.1 to 30% by weight of bleaches and optionally bleach activators, g) 0 to 8% by weight of enzymes, h) 0 to 50% by weight of one or more further additives such as anionic or zwitterionic surfactants, bleach catalysts, alkali carriers, polymeric dispersants, corrosion inhibitors, antifoams, dyes, fragrances, fillers, tablet disintegrants, organic solvents, tableting auxiliaries, disintegrants, thickeners, solubility promoters and water, ,,as originally filed"
where the sum of components a) to h) is 100% by weight.
As component b), the cleaning formulations according to the invention can comprise one or more complexing agents. Preferred complexing agents are selected from the group consisting of nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, hydroxyethylethylenediaminetriacetic acid and methylglycinediacetic acid, glutamic acid diacetic acid, iminodisuccinic acid, hydroxyiminodisuccinic acid, ethylenediaminedisuccinic acid, aspartic acid diacetic acid, and salts thereof. Particularly preferred complexing agents b) are methylglycinediacetic acid and salts thereof.
As component c), the cleaner according to the invention can comprise phosphates. If the cleaner comprises phosphates, it generally comprises these in amounts of from 1 to 70% by weight, preferably from 5 to 60% by weight, particularly preferably from 20 to 55% by weight.
Among the large number of commercially available phosphates, the alkali metal phosphates, particularly preferably pentasodium or pentapotassium triphosphate (sodium or potassium tripolyphosphate), are of the greatest importance in the detergents and cleaners industry.
Of suitability as phosphates for dishwashing compositions are in particular alkali metal phosphates and polymeric alkali metal phosphates, which may be present in the form of their alkaline, neutral or acidic sodium or potassium salts. Examples of phosphates of this type are trisodium phosphate, tetrasodium diphosphate, disodium dihydrogen-diphosphate, pentasodium tripolyphosphate, so-called sodium hexametaphosphate, oligomeric trisodium phosphate with a degree of oligomerization of from 5 to 1000, preferably 5 to 50, and the corresponding potassium salts, or mixtures of sodium hexametaphosphate and the corresponding potassium salts, or mixtures of the sodium and potassium salts. Tripolyphosphate salts are particularly preferred. These are used in amounts of from 30 to 65% by weight, preferably 35 to 60% by weight, expressed as water-free active substance and based on the total cleaning formulation.
As component d), the cleaner according to the invention can comprise builders and cobuilders. Builders and cobuilders are water-soluble or water-insoluble substances whose main task consists in the binding of calcium and magnesium ions.
,,as originally filed"
These may be low molecular weight carboxylic acids and salts thereof such as alkali metal citrates, in particular anhydrous trisodium citrate or trisodium citrate dihydrate, alkali metal succinates, alkali metal malonates, fatty acid sulfonates, oxydisuccinate, alkyl- or alkenyldisuccinates, gluconic acids, oxadiacetates, carboxymethyloxysuccinates, tartrate monosuccinate, tartrate disuccinate, tartrate monoacetate, tartrate diacetate and a-hydroxypropionic acid.
A further substance class with cobuilder properties which may be present in the cleaners according to the invention is that of the phosphonates. These are in particular hydroxyalkane- and aminoalkanephosphonates. Among the hydroxyalkanephosphonates, 1-hydroxyethane-1,1-diphosphonate (HEDP) is of particular importance as cobuilder. It is preferably used as sodium salt, the disodium salt being neutral and the tetrasodium salt alkaline (pH 9). Suitable aminoalkanephosphonates are preferably ethylenediaminetetramethylenephosphonate (EDTMP), diethylenetriaminepentamethylenephosphonate (DTPMP), and higher homologs thereof. They are preferably used in the form of the neutral sodium salts, e.g.
as hexasodium salt of EDTMP or as hepta- and octasodium salt of DTPMP. As builder, preferably HEDP is used here from the class of phosphonates. The aminoalkanephosphonates moreover have a pronounced heavy metal binding capacity. Accordingly, especially if the compositions also comprise bleaches, it may be preferred to use aminoalkanephosphonates, in particular DTPMP, or to use mixtures of the specified phosphonates.
A further substance class in the builder system is that of the silicates.
Crystalline sheet silicates with the general formula NaMSi902x+1 yH20 may be present, where M is sodium or hydrogen, xis a number from 1.9 to 22, preferably from 1.9 to 4, where particularly preferred values for x are 2, 3 or 4 and y is a number from 0 to 33, preferably 0 to 20. In addition, amorphous sodium silicates with an Si02:Na20 ratio of 1 to 3.5, preferably from 1.6 to 3 and in particular from 2 to 2.8, can be used.
Furthermore, carbonates and hydrogencarbonates are used, of which the alkali metal salts, in particular sodium salts, are preferred. Preferred amounts are 5 to 50% by weight, particularly preferably 10 to 40% by weight and in particular 15 to 30% by weight.
,,as originally filed"
As component e), the cleaning formulations according to the invention comprise weakly foaming or low-foam nonionic surfactants. These are generally present in fractions of from 0.1 to 20% by weight, preferably from 0.1 to 15% by weight, particularly preferably from 0.25 to 10% by weight.
Suitable nonionic surfactants comprise the surfactants of the general formula (Ill) R18-0-(CH2CH20)p-(CHR17CH20)m-R19 (Ill) in which R18 is a linear or branched alkyl radical having 8 to 22 carbon atoms, R17 and R19, independently of one another, are hydrogen or a linear or branched alkyl radical having 1-10 carbon atoms or H, where R17 is preferably methyl, p and m, independently of one another, are 0 to 300. Preferably, p = 1-100 and m = 0-30.
The surfactants of the formula (Ill) may either be random copolymers or block copolymers, preference being given to block copolymers.
Furthermore, di- and multiblock copolymers, formed from ethylene oxide and propylene oxide, can be used, which are commercially available for example under the name Pluronic (BASF SE) or Tetronic (BASF Corporation). Furthermore, reaction products of sorbitan esters with ethylene oxide and/or propylene oxide can be used.
Likewise of suitability of amine oxides or alkyl glycosides. An overview of suitable nonionic surfactants is given in EP-A 851 023 and DE-A 198 19 187.
Mixtures of two or more different nonionic surfactants may also be present.
The formulations can also comprise anionic or zwitterionic surfactants, preferably in a mixture with nonionic surfactants. Suitable anionic and zwitterionic surfactants are likewise specified in EP-A 851 023 and DE-A 198 19 187.
As component f), the cleaning formulations according to the invention can comprise bleaches and optionally bleach activators.
Bleaches are subdivided into oxygen bleaches and chlorine-containing bleaches.
Alkali metal perborates and hydrates thereof, and also alkali metal percarbonates, are used õas originally filed"
as oxygen bleaches. Preferred bleaches here are sodium perborate in the form of the mono- or tetrahydrate, sodium percarbonate or the hydrates of sodium percarbonate.
Persulfates and hydrogen peroxide can likewise be used as oxygen bleaches.
Typical oxygen bleaches are also organic peracids, such as, for example, perbenzoic acid, peroxy-alpha-naphthoic acid, peroxylauric acid, peroxystearic acid, phthalimidoperoxycaproic acid, 1,12-diperoxydodecanedioic acid, 1,9-diperoxyazeleic acid, diperoxoisophthalic acid or 2-decyldiperoxybutane-1,4-dioic acid.
Moreover, the following oxygen bleaches may also be used in the cleaner formulation:
Cationic peroxy acids which are described in the patent applications US
5,422,028, US 5,294,362 and US 5,292,447, and sulfonyl peroxy acids which are described in the patent application US 5,039,447.
Oxygen bleaches are used in amounts of in general 0.5 to 30% by weight, preferably from 1 to 20% by weight, particularly preferably from 3 to 15 % by weight, based on the total cleaner formulation.
Chlorine-containing bleaches and the combination of chlorine-containing bleaches with peroxide-containing bleaches can likewise be used. Known chlorine-containing bleaches are, for example, 1,3-dichloro-5,5-dimethylhydantoin, N-chlorosulfamide, chloramine T, dichloramine T, chloramine B, N,N'-dichlorobenzoylurea, p-toluenesulfonedichloroamide or trichloroethylamine. Preferred chlorine-containing bleaches are sodium hypochlorite, calcium hypochlorite, potassium hypochlorite, magnesium hypochlorite, potassium dichloroisocyanurate or sodium dichloroisocyanurate.
Chlorine-containing bleaches are used in amounts of in general 0.1 to 20% by weight, preferably from 0.2 to 10% by weight, particularly preferably from 0.3 to 8%
by weight, based on the total cleaner formulation.
Furthermore, bleach stabilizers such as, for example, phosphonates, borates, metaborates, metasilicates or magnesium salts can be added in small amounts.
,,as originally filed"
Bleach activators are compounds which, under perhydrolysis conditions, produce aliphatic peroxocarboxylic acids having preferably 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and/or substituted perbenzoic acid. Compounds which comprise one or more N- or 0-acyl groups and/or optionally substituted benzoyl groups, for example substances from the class of anhydrides, esters, imides, acylated imidazoles or oximes, are suitable. Examples are tetraacetylethylenediamine (TAED), tetraacetylmethylenediamine (TAM D), tetraacetylglycoluril (TAGU), tetraacetylhexylenediamine (TAHD), N-acylimides, such as, for example, N-nonanoylsuccinimide (NOSI), acylated phenolsulfonates, such as, for example, n-nonanoyl- or isononanoyloxybenzenesulfonates (n- or iso-NOBS), pentaacetylglucose (FAG), 1,5-diacety1-2,2-dioxohexahydro-1,3,5-triazine (DADHT) or isatoic anhydride (ISA). Likewise suitable as bleach activators are nitrile quats such as, for example, N-methylmorpholinioacetonitrile salts (MMA salts) or trimethylammonioacetonitrile salts (TMAQ salts).
Preferably, bleach activators from the group consisting of polyacylated alkylenediamines, particularly preferably TAED, N-acylimides, particularly preferably NOSI, acylated phenolsulfonates, particularly preferably n- or iso-NOBS, MMA
and TMAQ are suitable.
Bleach activators are used in amounts of in general 0.1 to 10% by weight, preferably from 1 to 9% by weight, particularly preferably from 1.5 to 8% by weight, based on the total cleaner formulation.
In addition to the conventional bleach activators, or instead of them, so-called bleach catalysts can also be incorporated into the rinse-aid particles. These substances are bleach-boosting transition metal salts or transition metal complexes such as, for example, manganese-, iron-, cobalt-, ruthenium- or molybdenum-salen complexes or -carbonyl complexes. It is also possible to use manganese, iron, cobalt, ruthenium, molybdenum, titanium, vanadium and copper complexes with nitrogen-containing tripod ligands, as well as cobalt-, iron-, copper- and ruthenium-amine complexes as bleach catalysts.
As component g), the cleaning formulations according to the invention can comprise enzymes. Between 0 and 8% by weight of enzymes, based on the total preparation, can be added to the cleaner in order to increase the performance of the cleaner or to as originally filed"
,.
, ensure the same quality of cleaning performance under milder conditions. The enzymes used most often include lipases, amylases, cellulases and proteases.
Furthermore, esterases, pectinases, lactases and peroxidases, for example, can also be used.
The cleaners according to the invention can moreover comprise, as component i), further additives such as anionic or zwitterionic surfactants, bleach catalysts, alkali carriers, corrosion inhibitors, antifoams, dyes, fragrances, fillers, tablet disintegrants, organic solvents and water.
Furthermore, the cleaners according to the invention can comprise 0 to 50% by weight of one or more further additives such as alkali carriers, corrosion inhibitors, antifoams, dyes, fragrances, fillers, organic solvents, tableting auxiliaries, disintegrants, solubility promoters and water.
As further constituents of the cleaner formulation, alkali carriers may be present.
Besides the ammonium or alkali metal carbonates, ammonium or alkali metal hydrogen-carbonates and ammonium or alkali metal sesquicarbonates already specified among the builder substances, it is also possible to use ammonium or alkali metal hydroxides, ammonium or alkali metal silicates and ammonium or alkali metal metasilicates, and mixtures of the aforementioned substances, as alkali carriers.
As corrosion inhibitors, silver anticorrosives from the group of triazoles, benzotriazoles, bisbenzotriazoles, aminotriazoles, alkylaminotriazoles and transition metal salts or complexes can be used.
To prevent glass corrosion, which is evident from clouding, iridescence, streaking and lines on the glasses, glass corrosion inhibitors are used. Preferred glass corrosion inhibitors are from the group of magnesium, zinc and bismuth salts and complexes.
Paraffin oils and silicone oils can optionally be used as antifoams and for protecting plastic and metal surfaces. Antifoams are generally used in fractions of from 0.001% by weight to 5% by weight. Moreover, dyes such as, for example, patent blue, preservatives such as, for example, Kathon CG, perfumes and other fragrances can be added to the cleaning formulation according to the invention.
,,as originally filed"
23 =
A suitable filler is, for example, sodium sulfate.
The invention further provides the use of the branched polyesters according to the invention and mixtures thereof as scale inhibitors in water-conveying systems.
Water-conveying systems in which the polymers according to the invention can be used are processes for water treatment, in particular seawater and brackish water desalination plants, cooling water systems and boiler feed water systems and industrial process waters. The desalination plants can be thermal in nature or be based on membrane processes such as reverse osmosis or electrodialysis.
In general, the polymers according to the invention are added to the water-conveying systems in amounts of from 0.1 mg/I to 100 mg/I. The optimum dosage is governed by the requirements of the particular application and/or by the operating conditions of the respective process. For example, the polymers are preferably used in concentrations of from 0.5 mg/I to 10 mg/I in the case of thermal seawater desalination. In industrial cooling circuits or boiler feed water systems, polymer concentrations up to 100 mg/I are used. Often, water analyses are carried out in order to ascertain the fraction of scale-forming salts and thus the optimum dosage.
It is also possible to add to the water-conveying systems formulations which, besides the polymers according to the invention, can comprise according to requirements, inter alia, phosphonates, polyphosphates, zinc salts, molybdate salts, organic corrosion inhibitors such as benzotriazole, tolyltriazole, benzimidazole or ethynylcarbinol alkoxylates, biocides, complexing agents and/or surfactants. Examples of phosphonates are 1-hydroxyethane-1,1-diphosphonic acid (HEDP), 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC), aminotrimethylenephosphonic acid (ATMP), diethylenetriaminepenta(methylenephosphonic acid) (DTPMP) and ethylenediaminetetra(methylenephosphonic acid) (EDTMP), which are used in each case in acid form or in the form of their sodium salts.
The present invention provides branched polyesters which can be used for cleaning purposes and for the purpose of water treatment and are nevertheless biodegradable.
These polymeric effect substances, which have a low toxicity, can be prepared by means of a technically relatively simple and cost-effective process and can be readily incorporated into formulations for cleaning purposes in their various presentation forms.
as originally filed"
The invention is further illustrated by the examples, without the examples limiting the subject matter of the invention.
Examples Preparation of the polyesters according to the invention General remarks:
The molecular weights were determined by gel permeation chromatography (GPO) (eluent: THF; standard: PMMA; detector: refractive index detector).
The acid numbers (mg KOH/g of polymer) were determined in accordance with DIN 53402.
TMP is understood as meaning trimethylolpropane.
TMP x n EO is understood as meaning trimethylolpropane alkoxylated with n mol of ethylene oxide, where n can be an average value (number-average).
PEG 200 is understood as meaning a polyethylene glycol with an average molecular weight of 200 g/mol.
Polyglycerol 3 is understood as meaning triglycerol.
Polymer 1: Polycondensate of citric acid monohydrate/TMP 1.5:1.0 A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 210.4 g (1.00 mol) of citric acid monohydrate and 89.6 g (0.67 mol) of TMP, and 0.1 g (400 ppm) of titanium(IV) tetrabutoxide. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 345 mg KOH/g of polymer Mr, = 570 g/mol, M, = 2580 g/mol Polymer 2: Polycondensate of citric acid monohydrate/TMP 2.0:1.0 ,,as originally filed"
A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 151.6 g (0.77 mol) of citric acid monohydrate and 48.8 g (0.37 mol) of TMP, and 0.06 g (300 ppm) of titanium(IV) tetrabutoxide. Under nitrogen gassing, the mixture was 5 heated to 130 C and held at this temperature for 2 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
10 Acid number = 398 mg KOH/g of polymer M, = 550 g/mol, Mw = 3990 g/mol Polymer 3: Polycondensate of citric acid monohydrate/TMP/TMPx12.2 EO
1.7:0.5:0.5 15 A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 141.1 g (0.67 mol) of citric acid monohydrate, 132.4 g (0.20 mol) of TMP x 12 EO and 26.5 g (0.20 mol) of TMP, and 0.1 g (400 ppm) of titanium(IV) tetrabutoxide. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2.5 h with 20 stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
25 Acid number = 262 mg of KOH/g of polymer Mn = 1170 g/mol, Mw = 2260 g/mol Polymer 4: Polycondensate of citric acid monohydrate/polyglycerol 3 ¨ 3.0:1.0 A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 217.4 g (1.03 mol) of citric acid monohydrate and 82.4 g (0.34 mol) of polyglycerol 3, and 0.015 g (50 ppm) of sulfuric acid. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 4 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
õas originally filed"
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 428 mg of KOH/g of polymer Mn = 1320 g/mol, M, = 1600 g/mol Polymer 5: Polycondensate of citric acid monohydrate/polyglycerol 3/TMP
4.0:1.0:1.0 A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 207.5 g (1.00 mol) of citric acid monohydrate, 59.3 g (0.25 mol) of polyglycerol 3 and 33.1 (0.25 mol) of TMP, and 0.1 g (400 ppm) of titanium(IV) tetrabutoxide. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 3.5 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 378 mg of KOH/g of polymer = 520 g/mol, Mw = 700 g/mol Polymer 6: Polycondensate of citric acid monohydrate/diethylene glycol/TMP
1.7:0.5:0.5 (without cat.) A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 224.5 g (1.07 mol) of citric acid monohydrate, 33.3 g (0.31 mol) of diethylene glycol and 42.2 g (0.31 mol) of TMP. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2.0 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a dark yellow water-soluble resin. The following characteristic data were determined:
Acid number = 412 mg of KOH/g of polymer = 1300 g/mol, M= 3500 g/mol as originally filed"
Polymer 7: Polycondensate of citric acid monohydrate/TMP/PEG 200 1.7:0.5:0.5 (without cat.) A 1000 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 204.4 g (0.97 mol) of citric acid monohydrate, 57.2 g (0.29 mol) of PEG 200 and 38.4 g (0.29 mol) of TMP. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 8 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 347 mg of KOH/g of polymer Mr, = 890 g/mol, M, = 2700 g/mol Polymer 8: Polycondensate of citric acid monohydrate/TMP/oleic acid 1.5:1.0:0.2 (without cat.) A 1000 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 186.9 g (0.88 mol) of citric acid monohydrate, 79.6 g (0.593 mol) of trimethylolpropane and 33.5 g of oleic acid (0.119 mol). Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 321 mg of KOH/g of polymer Mn = 1400 g/mol, M = 2800 g/mol Polymer 9: Polycondensate of citric acid monohydrate/IMP/oleic acid 1.5:0.5:0.1 (without cat.) A 1000 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 186.9 g (0.88 mol) of citric acid monohydrate, 79.6 g (0.593 mol) of trimethylolpropane and as originally filed"
16.75 g of oleic acid (0.06 mol). Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 314 mg of KOH/g of polymer Mn = 1700 g/mol, M = 3000 g/mol Calcium carbonate inhibition test A solution of NaHCO3, Mg2SO4, CaCl2 and polymer is shaken in a waterbath for 2 h at 70 C. After filtering the still-warm solution through a 0.45 pm Milex filter, the Ca content of the filtrate is ascertained by complexometry or by means of a Ca2+-selective electrode, and the CaCO3 inhibition is ascertained in % by means of a before/after comparison (see formula l).
Ca2+ 215 mg/L
Mg2+ 43 mg/L
HCO3- 1220 mg/L
Na + 460 mg/L
Cl- 380 mg/L
S042- 170 mg/L
Polymer 5 mg/L
Temperature 70 C
Time 2 hours pH 8.0-8.5 CaCO3 inhibition ( /0) = mg of (Ca2+) after 24 h - mg of (Ca2+) blank value after 24 h *100 mg of (Ca2+) zero value - mg of (Ca2+) blank value after 24 h as originally filed"
Table 1 Inhibition [ /0]
Example 1 40.9 2 48.5 3 55.4 4 32.1 36.7 6 28.2 7 34.1 8 44.1 9 30.5
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 378 mg of KOH/g of polymer = 520 g/mol, Mw = 700 g/mol Polymer 6: Polycondensate of citric acid monohydrate/diethylene glycol/TMP
1.7:0.5:0.5 (without cat.) A 500 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 224.5 g (1.07 mol) of citric acid monohydrate, 33.3 g (0.31 mol) of diethylene glycol and 42.2 g (0.31 mol) of TMP. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2.0 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a dark yellow water-soluble resin. The following characteristic data were determined:
Acid number = 412 mg of KOH/g of polymer = 1300 g/mol, M= 3500 g/mol as originally filed"
Polymer 7: Polycondensate of citric acid monohydrate/TMP/PEG 200 1.7:0.5:0.5 (without cat.) A 1000 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 204.4 g (0.97 mol) of citric acid monohydrate, 57.2 g (0.29 mol) of PEG 200 and 38.4 g (0.29 mol) of TMP. Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 8 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 347 mg of KOH/g of polymer Mr, = 890 g/mol, M, = 2700 g/mol Polymer 8: Polycondensate of citric acid monohydrate/TMP/oleic acid 1.5:1.0:0.2 (without cat.) A 1000 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 186.9 g (0.88 mol) of citric acid monohydrate, 79.6 g (0.593 mol) of trimethylolpropane and 33.5 g of oleic acid (0.119 mol). Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 321 mg of KOH/g of polymer Mn = 1400 g/mol, M = 2800 g/mol Polymer 9: Polycondensate of citric acid monohydrate/IMP/oleic acid 1.5:0.5:0.1 (without cat.) A 1000 ml round-bottomed flask equipped with stirrer, internal thermometer, gas inlet tube and descending condenser with collecting vessel was charged with 186.9 g (0.88 mol) of citric acid monohydrate, 79.6 g (0.593 mol) of trimethylolpropane and as originally filed"
16.75 g of oleic acid (0.06 mol). Under nitrogen gassing, the mixture was heated to 130 C and held at this temperature for 2 h with stirring, during which water of reaction and water of crystallization that was liberated was separated off via the descending condenser. The reaction was then ended by cooling to room temperature.
The product was obtained in the form of a yellow water-soluble resin.
The following characteristic data were determined:
Acid number = 314 mg of KOH/g of polymer Mn = 1700 g/mol, M = 3000 g/mol Calcium carbonate inhibition test A solution of NaHCO3, Mg2SO4, CaCl2 and polymer is shaken in a waterbath for 2 h at 70 C. After filtering the still-warm solution through a 0.45 pm Milex filter, the Ca content of the filtrate is ascertained by complexometry or by means of a Ca2+-selective electrode, and the CaCO3 inhibition is ascertained in % by means of a before/after comparison (see formula l).
Ca2+ 215 mg/L
Mg2+ 43 mg/L
HCO3- 1220 mg/L
Na + 460 mg/L
Cl- 380 mg/L
S042- 170 mg/L
Polymer 5 mg/L
Temperature 70 C
Time 2 hours pH 8.0-8.5 CaCO3 inhibition ( /0) = mg of (Ca2+) after 24 h - mg of (Ca2+) blank value after 24 h *100 mg of (Ca2+) zero value - mg of (Ca2+) blank value after 24 h as originally filed"
Table 1 Inhibition [ /0]
Example 1 40.9 2 48.5 3 55.4 4 32.1 36.7 6 28.2 7 34.1 8 44.1 9 30.5
5 The polymers were tested in the following phosphate-free formulations PF1 and PF2, and also in the phosphate-based formulation P1. Table 2 Protease 2.5 2.5 1 Amylase 1.0 1.0 0.2 Nonionic surfactant 5.0 5 3 Polymer 10 10 6.5 Sodium percarbonate 10.5 10.5 14 Tetraacetylethylenediamine 4 4 4 Sodium disilicate 2 2 2 Sodium tripolyphosphate 50 Sodium carbonate 19.5 19.5 18.8 Sodium citrate dihydrate 35 Methylglycinediacetic acid 10 45 Hydroxyethane-(1,1- 0.5 0.5 0.5 diphosphonic acid) Data in A by weight based on the total amount of all components as originally filed"
The following experimental conditions were observed:
Dishwasher: Miele G 1222 SCL
Program: 65 C (with prewash) Dishes: 3 knives (WMF Tafelmesser Berlin, monobloc) 5 3 Amsterdam 0.2L drinking glasses 3 "OCEAN BLAU" breakfast plates (MELAMINE) 3 porcelain plates: 19 cm plates with rims flat Arrangement: Knives in the cutlery drawer, glasses in the upper baskets, plates in the lower basket 10 Dishwashing detergent: 18 g Addition of soil: 50 g of ballast soil is added in thawed form with the formulation after the prewash; for composition see below Rinse temperature: 65 C
Water hardness: 21 German hardness (Ca/Mg):HCO3 (3:1):1.35 15 Wash cycles: 6; break in between for 1 h in each case (10 min with door open, 50 min with door closed) Evaluation: Visually after 6 wash cycles The evaluation of the dishes was carried out after 6 cycles in a darkened chamber 20 under light behind an aperture diaphragm using a grading scale from 10 (very good) to 1 (very poor). Grades from 1-10 for spotting (very many, intensive spots = 1 ranging to no spots = 10) and also for filming (1 = very severe filming, 10 = no filming) were awarded.
Composition of the ballast soil:
25 Starch: 0.5% potato starch, 2.5% gravy Fat: 10.2% margarine Protein: 5.1% egg yolk, 5.1% milk Others: 2.5% tomato ketchup, 2.5% mustard, 0.1% benzoic acid, 71.4% water 30 Result:
The formulation containing polymer are characterized in particular by their very high film-inhibiting effect towards inorganic and organic deposits on glass, knives, porcelain and plastic components. Furthermore, they increase the cleaning power of the dishwashing detergent and encourage the water to run off from the dishes.
õas originally filed"
The tables below list the summed grades for film formation and spotting on knives and drinking glasses.
Phosphate-free formulation PF 1 Polymer Knives (F + S) Glasses (F + S) without 8 7 Phosphate-free formulation PF 2 Polymer Knives (F + S) Glasses (F + S) without 7 8 õas originally filed"
The following experimental conditions were observed:
Dishwasher: Miele G 1222 SCL
Program: 65 C (with prewash) Dishes: 3 knives (WMF Tafelmesser Berlin, monobloc) 5 3 Amsterdam 0.2L drinking glasses 3 "OCEAN BLAU" breakfast plates (MELAMINE) 3 porcelain plates: 19 cm plates with rims flat Arrangement: Knives in the cutlery drawer, glasses in the upper baskets, plates in the lower basket 10 Dishwashing detergent: 18 g Addition of soil: 50 g of ballast soil is added in thawed form with the formulation after the prewash; for composition see below Rinse temperature: 65 C
Water hardness: 21 German hardness (Ca/Mg):HCO3 (3:1):1.35 15 Wash cycles: 6; break in between for 1 h in each case (10 min with door open, 50 min with door closed) Evaluation: Visually after 6 wash cycles The evaluation of the dishes was carried out after 6 cycles in a darkened chamber 20 under light behind an aperture diaphragm using a grading scale from 10 (very good) to 1 (very poor). Grades from 1-10 for spotting (very many, intensive spots = 1 ranging to no spots = 10) and also for filming (1 = very severe filming, 10 = no filming) were awarded.
Composition of the ballast soil:
25 Starch: 0.5% potato starch, 2.5% gravy Fat: 10.2% margarine Protein: 5.1% egg yolk, 5.1% milk Others: 2.5% tomato ketchup, 2.5% mustard, 0.1% benzoic acid, 71.4% water 30 Result:
The formulation containing polymer are characterized in particular by their very high film-inhibiting effect towards inorganic and organic deposits on glass, knives, porcelain and plastic components. Furthermore, they increase the cleaning power of the dishwashing detergent and encourage the water to run off from the dishes.
õas originally filed"
The tables below list the summed grades for film formation and spotting on knives and drinking glasses.
Phosphate-free formulation PF 1 Polymer Knives (F + S) Glasses (F + S) without 8 7 Phosphate-free formulation PF 2 Polymer Knives (F + S) Glasses (F + S) without 7 8 õas originally filed"
Claims (13)
1. The use of branched polyesters obtainable by polycondensation of a. citric acid (component A) with b. at least one polyalcohol with at least 2 and up to 6 hydroxyl groups (component B) and c. optionally a polycarboxylic acid component (component C) and optionally reaction with d. at least one component D selected from the group consisting of: C6-C30 alkyl- or alkenylcarboxylic acids, C6-C30 alkyl or alkenyl alcohols, C6-C30 alkyl- or alkenylamines, C6-C30 aliphatic isocyanates during the polycondensation or subsequently as additive in washing compositions, cleaners, detergents or a formulation for water treatment, where the branched polyesters have a molecular weight Mn of from 400 to 5000 g/mol, a molecular weight M,õ of from 500 to 50000 g/mol, an acid value of from 60 to 600 mg KOH/g polymer and a glass transition temperature in the range of 50 to +50 °C, where the mol ratio of citric acid to polyalcohol is 3.5 : 1.0 to 1.0 : 1.5, and where optionally the portion of polycarbonylic acid is maximally 30 mol-%
compared to the used quantity of citric acid.
compared to the used quantity of citric acid.
2. The use of branched polyesters according to claim 1 as scale inhibitors in water-conveying systems.
3. The use according to claims 1 or 2, where the molar ratio of (component A +
component B) to component D is preferably 10:0.1 to 0.5:0.1.
component B) to component D is preferably 10:0.1 to 0.5:0.1.
4. The use according to claims 1 to 3, where component B is: ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol and also diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, polyethylene glycol with an average molecular weight between 200 and 1000 g/mol, glycerol, diglycerol, triglycerol, trimethylolpropane, trimethylolethane, di(trimethylolpropane), 1,2,4-butanetriol, 1,2,6-hexanetriol, pentaerythritol, sucrose , sorbitol or glucaric acid, and polyetherols thereof based on ethylene oxide and/or propylene oxide, or a mixture thereof.
5. The use according to claims 1 to 4, where component B is: diethylene glycol or polyethylene glycol with an average molecular weight between 200 and 1000 g/mol, trimethylolpropane, glycerol, diglycerol or triglycerol, and polyetherols thereof based on ethylene oxide and/or propylene oxide, or a mixture thereof.
6. The use according to claims 1 to 5, where component C is: malonic acid, succinic acid, glutaric acid, adipic acid, sebacic acid, octadecenylsuccinic anhydride, 1,2-, 1,3- or 1,4-cyclohexanedicarboxylic acids (hexahydrophthalic acid as cis or trans compounds or mixtures thereof), phthalic acid, isophthalic acid, terephthalic acid or anhydrides or mono- or dialkyl esters thereof.
7. The use according to claims 1 to 6, where component D is: oleic acid, palmitic acid, linoleic acid, stearic acid, lauric acid or ricinoleic acid.
8. The use according to claims 1 to 7, where the branched polyesters have a molecular weight Mn of from 400 to 5000 g/mol.
9. The use according to claims 1 to 8, where the washing composition is a dishwashing composition.
10. A process for preparing hydrophobically modified branched polyesters defined according to any of the claims 1 and 3 to 8, comprising a. the polycondensation of components A, B, and optionally C to give branched polyesters, b. the reaction of component D during the polycondensation or subsequently.
11. A hydrophobically modified branched polyester according to the process according to claim 10.
12. A cleaner formulation for machine dishwashing comprising as components a) 1 to 20% by weight of at least one branched polyester obtainable by polycondensation of citric acid (component A); at least one polyalcohol (component B), optionally polycarboxylic acid component (component C) and optionally component D, where the branched polyester is defined according to any of the claims 1 and 3 to 8, b) 0 to 50% by weight of complexing agents, c) 0 to 70% by weight of phosphates, d) 0 to 60% by weight of further builders and cobuilders, e) 0.1 to 20% by weight of nonionic surfactants, f) 0.1 to 30% by weight of bleaches and optionally bleach activators, g) 0 to 8% by weight of enzymes, h) 0 to 50% by weight of one or more further additives such as anionic or zwitterionic surfactants, bleach catalysts, alkali carriers, polymeric dispersants, corrosion inhibitors, antifoams, dyes, fragrances, fillers, tablet disintegrants, organic solvents, tableting auxiliaries, disintegrants, thickeners, solubility promoters and water, where the sum of components a) to h) is 100% by weight.
13. A formulation for water treatment comprising as components a) 1 to 95% by weight of at least one branched polyester obtainable by polycondensation of citric acid (component A) with at least one polyalcohol (component B), optionally a polycarboxylic acid component (component C) and optionally component D, where the branched polyester is defined according to any of the claims 1 and 3 to 8, b) 0 to 80% by weight of phosphonates, c) 0 to 98% by weight of water, d) 0 to 50% by weight of one or more further additives such as polyphosphates, zinc salts, molybdate salts, organic corrosion inhibitors, biocides, complexing agents, surfactants or antifoams where the sum of components a) to d) is 100% by weight and the sum of components b) and d) is > 0.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP12177751.0 | 2012-07-25 | ||
EP12177751 | 2012-07-25 | ||
PCT/EP2013/064877 WO2014016148A2 (en) | 2012-07-25 | 2013-07-15 | Use of branched polyesters based on citric acid as an additive in dish soaps, cleaning agents, detergents, or a formulation for water treatment |
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CA2879574A1 true CA2879574A1 (en) | 2014-01-30 |
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CA2879574A Abandoned CA2879574A1 (en) | 2012-07-25 | 2013-07-15 | Use of branched polyesters based on citric acid as additive in washing compositions, cleaners, detergents or a formulation for water treatment |
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EP (1) | EP2877565B1 (en) |
JP (1) | JP6053930B2 (en) |
KR (1) | KR102041092B1 (en) |
CN (1) | CN104704104A (en) |
BR (1) | BR112015001417B1 (en) |
CA (1) | CA2879574A1 (en) |
ES (1) | ES2652131T3 (en) |
IN (1) | IN2015DN00497A (en) |
MX (1) | MX2015001136A (en) |
PL (1) | PL2877565T3 (en) |
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WO (1) | WO2014016148A2 (en) |
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CA2972304C (en) | 2014-12-23 | 2023-10-03 | Basf Se | Hyperbranched polymer modified with isocyanate linker and mix of short and long chain alkyl polyether |
CN107922228B (en) * | 2015-09-10 | 2021-09-24 | 陶氏环球技术有限责任公司 | Scale inhibitor methods and compositions |
CN105936552A (en) * | 2016-06-20 | 2016-09-14 | 延长油田股份有限公司 | Solid corrosion and scale inhibitor for oil field and preparation method thereof |
CN108300599A (en) * | 2018-03-05 | 2018-07-20 | 河南绿澳化工科技有限公司 | A kind of environment protection multifunctional vial cleaning agent and its preparation method |
JP7385206B2 (en) * | 2018-12-04 | 2023-11-22 | 国立大学法人大阪大学 | immunostimulant |
CN109852977B (en) * | 2019-03-11 | 2024-02-02 | 上海新阳半导体材料股份有限公司 | Tin ball production process, cleaning agent and preparation method thereof |
WO2021115916A1 (en) | 2019-12-13 | 2021-06-17 | BASF Agro B.V. | Suspension concentrate |
CN114805055B (en) * | 2022-04-29 | 2023-06-23 | 山东天庆科技发展有限公司 | Novel hyperbranched macromolecular scale inhibitor and preparation method thereof |
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DD63599A (en) * | 1966-11-19 | |||
US5245075A (en) | 1987-11-13 | 1993-09-14 | Ausimont S.R.L. | Peroxy carboxylic amino derivatives |
US5292447A (en) | 1988-06-14 | 1994-03-08 | Ausimont S.R.L. | Heterocyclic peroxides having n-amidic heteroatoms |
US5039447A (en) | 1988-12-12 | 1991-08-13 | Monsanto Company | Pourable sulfone peracid compositions |
DE4108626A1 (en) * | 1991-03-16 | 1992-09-17 | Basf Ag | CITRONIC ACID ESTERS OF POLYHYDROXY COMPOUNDS AND THEIR USE IN DETERGENTS AND CLEANERS |
DE4213282A1 (en) * | 1992-04-23 | 1993-10-28 | Basf Ag | Process for the preparation of polyesters from citric acid and polyhydroxy compounds and their use |
JP3236676B2 (en) * | 1992-10-13 | 2001-12-10 | 株式会社日本触媒 | Biodegradable electrolyte polymer, production method thereof and use thereof |
GB9305863D0 (en) | 1993-03-22 | 1993-05-12 | Unilever Plc | Peroxyacids |
DE4429691A1 (en) * | 1994-08-22 | 1996-02-29 | Basf Ag | Process for the preparation of polycondensates of citric acid and their use in detergents and cleaning agents |
US5837663A (en) | 1996-12-23 | 1998-11-17 | Lever Brothers Company, Division Of Conopco, Inc. | Machine dishwashing tablets containing a peracid |
DE19819187A1 (en) | 1998-04-30 | 1999-11-11 | Henkel Kgaa | Solid dishwasher detergent with phosphate and crystalline layered silicates |
CN101942076B (en) * | 2009-07-06 | 2012-10-10 | 中国石油化工股份有限公司 | Preparation method of polyester |
US8182796B1 (en) * | 2009-07-20 | 2012-05-22 | Surfatech Corporation | Naturally derived citrate polyesters having liquid and solid domains |
KR101722805B1 (en) * | 2009-11-26 | 2017-04-05 | 바스프 에스이 | Use of hyperbranched polyesters in cosmetic and dermatological formulations |
WO2012028496A1 (en) * | 2010-08-31 | 2012-03-08 | Basf Se | Branched polyesters based on citric acid and also their preparation and use |
-
2013
- 2013-07-15 JP JP2015523486A patent/JP6053930B2/en active Active
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- 2013-07-15 BR BR112015001417-8A patent/BR112015001417B1/en active IP Right Grant
- 2013-07-15 CA CA2879574A patent/CA2879574A1/en not_active Abandoned
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JP6053930B2 (en) | 2016-12-27 |
BR112015001417B1 (en) | 2021-11-03 |
PL2877565T3 (en) | 2018-02-28 |
KR102041092B1 (en) | 2019-11-06 |
WO2014016148A2 (en) | 2014-01-30 |
EP2877565A2 (en) | 2015-06-03 |
CN104704104A (en) | 2015-06-10 |
WO2014016148A3 (en) | 2014-04-10 |
KR20150036750A (en) | 2015-04-07 |
MX2015001136A (en) | 2015-09-07 |
ES2652131T3 (en) | 2018-01-31 |
RU2629951C2 (en) | 2017-09-05 |
RU2015106106A (en) | 2016-09-10 |
EP2877565B1 (en) | 2017-09-13 |
JP2015530423A (en) | 2015-10-15 |
BR112015001417A2 (en) | 2017-07-04 |
IN2015DN00497A (en) | 2015-06-26 |
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Legal Events
Date | Code | Title | Description |
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EEER | Examination request |
Effective date: 20180713 |
|
FZDE | Discontinued |
Effective date: 20201216 |