GB2315768A - Detergent compositions - Google Patents
Detergent compositions Download PDFInfo
- Publication number
- GB2315768A GB2315768A GB9616137A GB9616137A GB2315768A GB 2315768 A GB2315768 A GB 2315768A GB 9616137 A GB9616137 A GB 9616137A GB 9616137 A GB9616137 A GB 9616137A GB 2315768 A GB2315768 A GB 2315768A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- alkyl
- preferred
- weight
- group
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 134
- 239000003599 detergent Substances 0.000 title claims abstract description 65
- 239000000843 powder Substances 0.000 claims abstract description 26
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 20
- 229910021653 sulphate ion Inorganic materials 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 23
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical group [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- 229910052936 alkali metal sulfate Inorganic materials 0.000 claims 1
- 239000004094 surface-active agent Substances 0.000 abstract description 64
- 239000007921 spray Substances 0.000 abstract description 9
- 239000012467 final product Substances 0.000 abstract 1
- -1 for example Chemical class 0.000 description 103
- 150000001875 compounds Chemical class 0.000 description 72
- 125000000217 alkyl group Chemical group 0.000 description 48
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 39
- 239000002518 antifoaming agent Substances 0.000 description 39
- 150000003839 salts Chemical class 0.000 description 39
- 239000002243 precursor Substances 0.000 description 38
- 125000004432 carbon atom Chemical group C* 0.000 description 32
- 239000002253 acid Substances 0.000 description 30
- 229920001296 polysiloxane Polymers 0.000 description 26
- 239000000463 material Substances 0.000 description 22
- 239000007844 bleaching agent Substances 0.000 description 21
- 239000000377 silicon dioxide Substances 0.000 description 19
- 239000003054 catalyst Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 229910052783 alkali metal Inorganic materials 0.000 description 16
- 239000011734 sodium Substances 0.000 description 16
- 241000894007 species Species 0.000 description 16
- 235000014113 dietary fatty acids Nutrition 0.000 description 15
- 239000000194 fatty acid Substances 0.000 description 15
- 229930195729 fatty acid Natural products 0.000 description 15
- 229920000768 polyamine Polymers 0.000 description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 13
- 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 13
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 13
- 239000002245 particle Substances 0.000 description 13
- 239000003352 sequestering agent Substances 0.000 description 13
- 229910052708 sodium Inorganic materials 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 12
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 12
- 150000001204 N-oxides Chemical class 0.000 description 12
- 239000011572 manganese Substances 0.000 description 12
- 150000004967 organic peroxy acids Chemical class 0.000 description 12
- 150000007513 acids Chemical class 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 11
- 150000004665 fatty acids Chemical class 0.000 description 11
- 150000004965 peroxy acids Chemical class 0.000 description 11
- 229920005646 polycarboxylate Polymers 0.000 description 11
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 10
- 150000001340 alkali metals Chemical class 0.000 description 10
- 150000001768 cations Chemical class 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 10
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 10
- 229910052700 potassium Inorganic materials 0.000 description 10
- 239000011591 potassium Substances 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 9
- 102000004190 Enzymes Human genes 0.000 description 9
- 108090000790 Enzymes Proteins 0.000 description 9
- 229910000323 aluminium silicate Inorganic materials 0.000 description 9
- 125000003118 aryl group Chemical group 0.000 description 9
- 229920001577 copolymer Polymers 0.000 description 9
- 229940088598 enzyme Drugs 0.000 description 9
- 229910001385 heavy metal Inorganic materials 0.000 description 9
- 125000001183 hydrocarbyl group Chemical group 0.000 description 9
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 9
- 229920000620 organic polymer Polymers 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 239000000344 soap Substances 0.000 description 9
- 150000008051 alkyl sulfates Chemical group 0.000 description 8
- 150000001408 amides Chemical class 0.000 description 8
- 125000000129 anionic group Chemical group 0.000 description 8
- 239000003945 anionic surfactant Substances 0.000 description 8
- 239000012876 carrier material Substances 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 8
- 229910052748 manganese Inorganic materials 0.000 description 8
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 7
- 108090001060 Lipase Proteins 0.000 description 7
- 239000004367 Lipase Substances 0.000 description 7
- 102000004882 Lipase Human genes 0.000 description 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 7
- 125000001931 aliphatic group Chemical group 0.000 description 7
- 125000002091 cationic group Chemical group 0.000 description 7
- 125000000623 heterocyclic group Chemical group 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
- 235000019421 lipase Nutrition 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- YNJSNEKCXVFDKW-UHFFFAOYSA-N 3-(5-amino-1h-indol-3-yl)-2-azaniumylpropanoate Chemical compound C1=C(N)C=C2C(CC(N)C(O)=O)=CNC2=C1 YNJSNEKCXVFDKW-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 150000001298 alcohols Chemical class 0.000 description 6
- 125000003342 alkenyl group Chemical group 0.000 description 6
- 125000002877 alkyl aryl group Chemical group 0.000 description 6
- 125000002947 alkylene group Chemical group 0.000 description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 6
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 6
- 239000010457 zeolite Substances 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 5
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 5
- 125000002723 alicyclic group Chemical group 0.000 description 5
- 238000004061 bleaching Methods 0.000 description 5
- 150000007942 carboxylates Chemical class 0.000 description 5
- 239000003093 cationic surfactant Substances 0.000 description 5
- 239000004927 clay Substances 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 230000002401 inhibitory effect Effects 0.000 description 5
- 239000003446 ligand Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 235000021317 phosphate Nutrition 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- OSSNTDFYBPYIEC-UHFFFAOYSA-N 1-ethenylimidazole Chemical compound C=CN1C=CN=C1 OSSNTDFYBPYIEC-UHFFFAOYSA-N 0.000 description 4
- 108010065511 Amylases Proteins 0.000 description 4
- 102000013142 Amylases Human genes 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 4
- 239000004902 Softening Agent Substances 0.000 description 4
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- 239000012190 activator Substances 0.000 description 4
- 229940025131 amylases Drugs 0.000 description 4
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 125000001309 chloro group Chemical group Cl* 0.000 description 4
- 229910052681 coesite Inorganic materials 0.000 description 4
- 229910052906 cristobalite Inorganic materials 0.000 description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 4
- 238000007046 ethoxylation reaction Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 150000002191 fatty alcohols Chemical class 0.000 description 4
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- DMCJFWXGXUEHFD-UHFFFAOYSA-N pentatriacontan-18-one Chemical compound CCCCCCCCCCCCCCCCCC(=O)CCCCCCCCCCCCCCCCC DMCJFWXGXUEHFD-UHFFFAOYSA-N 0.000 description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229910052682 stishovite Inorganic materials 0.000 description 4
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 4
- 229910052905 tridymite Inorganic materials 0.000 description 4
- 239000002888 zwitterionic surfactant Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- TTZMPOZCBFTTPR-UHFFFAOYSA-N O=P1OCO1 Chemical compound O=P1OCO1 TTZMPOZCBFTTPR-UHFFFAOYSA-N 0.000 description 3
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 239000002280 amphoteric surfactant Substances 0.000 description 3
- 235000019418 amylase Nutrition 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229960001231 choline Drugs 0.000 description 3
- 150000001860 citric acid derivatives Chemical class 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000007859 condensation product Substances 0.000 description 3
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000008394 flocculating agent Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 150000003949 imides Chemical class 0.000 description 3
- 210000003141 lower extremity Anatomy 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 229940055076 parasympathomimetics choline ester Drugs 0.000 description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 3
- 229920002006 poly(N-vinylimidazole) polymer Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 150000003248 quinolines Chemical class 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 150000004760 silicates Chemical class 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- WLDGDTPNAKWAIR-UHFFFAOYSA-N 1,4,7-trimethyl-1,4,7-triazonane Chemical compound CN1CCN(C)CCN(C)CC1 WLDGDTPNAKWAIR-UHFFFAOYSA-N 0.000 description 2
- VKZRWSNIWNFCIQ-UHFFFAOYSA-N 2-[2-(1,2-dicarboxyethylamino)ethylamino]butanedioic acid Chemical compound OC(=O)CC(C(O)=O)NCCNC(C(O)=O)CC(O)=O VKZRWSNIWNFCIQ-UHFFFAOYSA-N 0.000 description 2
- NSMMFSKPGXCMOE-UHFFFAOYSA-N 2-[2-(2-sulfophenyl)ethenyl]benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1C=CC1=CC=CC=C1S(O)(=O)=O NSMMFSKPGXCMOE-UHFFFAOYSA-N 0.000 description 2
- NZCIWANIJJJEML-UHFFFAOYSA-N 2-methyl-1,4,7-triazonane Chemical compound CC1CNCCNCCN1 NZCIWANIJJJEML-UHFFFAOYSA-N 0.000 description 2
- YGUMVDWOQQJBGA-VAWYXSNFSA-N 5-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-[(e)-2-[4-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound C=1C=C(\C=C\C=2C(=CC(NC=3N=C(N=C(NC=4C=CC=CC=4)N=3)N3CCOCC3)=CC=2)S(O)(=O)=O)C(S(=O)(=O)O)=CC=1NC(N=C(N=1)N2CCOCC2)=NC=1NC1=CC=CC=C1 YGUMVDWOQQJBGA-VAWYXSNFSA-N 0.000 description 2
- CNGYZEMWVAWWOB-VAWYXSNFSA-N 5-[[4-anilino-6-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl]amino]-2-[(e)-2-[4-[[4-anilino-6-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound N=1C(NC=2C=C(C(\C=C\C=3C(=CC(NC=4N=C(N=C(NC=5C=CC=CC=5)N=4)N(CCO)CCO)=CC=3)S(O)(=O)=O)=CC=2)S(O)(=O)=O)=NC(N(CCO)CCO)=NC=1NC1=CC=CC=C1 CNGYZEMWVAWWOB-VAWYXSNFSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical group OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical class NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical class OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 108091005804 Peptidases Proteins 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- 241000589630 Pseudomonas pseudoalcaligenes Species 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 108010056079 Subtilisins Proteins 0.000 description 2
- 102000005158 Subtilisins Human genes 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 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 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- IFEUBXRSLPUMSI-UHFFFAOYSA-N [ClH]1NN=NC=C1 Chemical class [ClH]1NN=NC=C1 IFEUBXRSLPUMSI-UHFFFAOYSA-N 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 125000005037 alkyl phenyl group Chemical group 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 235000003704 aspartic acid Nutrition 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 2
- 229960003237 betaine Drugs 0.000 description 2
- 150000001642 boronic acid derivatives Chemical class 0.000 description 2
- 150000001720 carbohydrates Chemical group 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000013522 chelant Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
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- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- DUCCPNVOQJMMAN-UHFFFAOYSA-N dimethylamino hexanoate Chemical compound CCCCCC(=O)ON(C)C DUCCPNVOQJMMAN-UHFFFAOYSA-N 0.000 description 1
- XQRLCLUYWUNEEH-UHFFFAOYSA-L diphosphonate(2-) Chemical compound [O-]P(=O)OP([O-])=O XQRLCLUYWUNEEH-UHFFFAOYSA-L 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical class O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 1
- XWENCHGJOCJZQO-UHFFFAOYSA-N ethane-1,1,2,2-tetracarboxylic acid Chemical class OC(=O)C(C(O)=O)C(C(O)=O)C(O)=O XWENCHGJOCJZQO-UHFFFAOYSA-N 0.000 description 1
- IGBSXRIJNMDLFB-UHFFFAOYSA-N ethane-1,2-diamine;pentanedioic acid Chemical compound NCCN.OC(=O)CCCC(O)=O.OC(=O)CCCC(O)=O IGBSXRIJNMDLFB-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 108010093305 exopolygalacturonase Proteins 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 125000003147 glycosyl group Chemical group 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002391 heterocyclic compounds Chemical group 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 125000005020 hydroxyalkenyl group Chemical group 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- JEGIFBGJZPYMJS-UHFFFAOYSA-N imidazol-1-yl(phenyl)methanone Chemical compound C1=CN=CN1C(=O)C1=CC=CC=C1 JEGIFBGJZPYMJS-UHFFFAOYSA-N 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- NBZBKCUXIYYUSX-UHFFFAOYSA-N iminodiacetic acid Chemical class OC(=O)CNCC(O)=O NBZBKCUXIYYUSX-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000002563 ionic surfactant Substances 0.000 description 1
- SUMDYPCJJOFFON-UHFFFAOYSA-N isethionic acid Chemical class OCCS(O)(=O)=O SUMDYPCJJOFFON-UHFFFAOYSA-N 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 150000004668 long chain fatty acids Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000011683 manganese gluconate Substances 0.000 description 1
- 229940072543 manganese gluconate Drugs 0.000 description 1
- 235000014012 manganese gluconate Nutrition 0.000 description 1
- OXHQNTSSPHKCPB-IYEMJOQQSA-L manganese(2+);(2r,3s,4r,5r)-2,3,4,5,6-pentahydroxyhexanoate Chemical compound [Mn+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O OXHQNTSSPHKCPB-IYEMJOQQSA-L 0.000 description 1
- MMIPFLVOWGHZQD-UHFFFAOYSA-N manganese(3+) Chemical compound [Mn+3] MMIPFLVOWGHZQD-UHFFFAOYSA-N 0.000 description 1
- 108010003855 mesentericopeptidase Proteins 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- TWXDDNPPQUTEOV-FVGYRXGTSA-N methamphetamine hydrochloride Chemical compound Cl.CN[C@@H](C)CC1=CC=CC=C1 TWXDDNPPQUTEOV-FVGYRXGTSA-N 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- JZMJDSHXVKJFKW-UHFFFAOYSA-N methyl sulfate Chemical group COS(O)(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-N 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 229960002900 methylcellulose Drugs 0.000 description 1
- 108010020132 microbial serine proteinases Proteins 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- SXLLDUPXUVRMEE-UHFFFAOYSA-N nonanediperoxoic acid Chemical compound OOC(=O)CCCCCCCC(=O)OO SXLLDUPXUVRMEE-UHFFFAOYSA-N 0.000 description 1
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- XCRBXWCUXJNEFX-UHFFFAOYSA-N peroxybenzoic acid Chemical class OOC(=O)C1=CC=CC=C1 XCRBXWCUXJNEFX-UHFFFAOYSA-N 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 125000005342 perphosphate group Chemical group 0.000 description 1
- RRCSSMRVSNZOFR-UHFFFAOYSA-N phenyl 3,5,5-trimethylhexanoate;sodium Chemical compound [Na].CC(C)(C)CC(C)CC(=O)OC1=CC=CC=C1 RRCSSMRVSNZOFR-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 235000002949 phytic acid Nutrition 0.000 description 1
- 229940068041 phytic acid Drugs 0.000 description 1
- 239000000467 phytic acid Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- NJKRDXUWFBJCDI-UHFFFAOYSA-N propane-1,1,2,3-tetracarboxylic acid Chemical class OC(=O)CC(C(O)=O)C(C(O)=O)C(O)=O NJKRDXUWFBJCDI-UHFFFAOYSA-N 0.000 description 1
- NJEVMKZODGWUQT-UHFFFAOYSA-N propane-1,1,3,3-tetracarboxylic acid Chemical class OC(=O)C(C(O)=O)CC(C(O)=O)C(O)=O NJEVMKZODGWUQT-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 150000004023 quaternary phosphonium compounds Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006268 reductive amination reaction Methods 0.000 description 1
- 229940071089 sarcosinate Drugs 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 229940071207 sesquicarbonate Drugs 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 235000012217 sodium aluminium silicate Nutrition 0.000 description 1
- QSKQNALVHFTOQX-UHFFFAOYSA-M sodium nonanoyloxybenzenesulfonate Chemical compound [Na+].CCCCCCCCC(=O)OC1=CC=CC=C1S([O-])(=O)=O QSKQNALVHFTOQX-UHFFFAOYSA-M 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- ZUFONQSOSYEWCN-UHFFFAOYSA-M sodium;2-(methylamino)acetate Chemical compound [Na+].CNCC([O-])=O ZUFONQSOSYEWCN-UHFFFAOYSA-M 0.000 description 1
- RPQSWSMNPBZEHT-UHFFFAOYSA-M sodium;2-acetyloxybenzenesulfonate Chemical compound [Na+].CC(=O)OC1=CC=CC=C1S([O-])(=O)=O RPQSWSMNPBZEHT-UHFFFAOYSA-M 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 239000013042 solid detergent Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 150000003890 succinate salts Chemical class 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 229960003080 taurine Drugs 0.000 description 1
- 108010075550 termamyl Proteins 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 150000004026 tertiary sulfonium compounds Chemical class 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 125000004665 trialkylsilyl group Chemical group 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000001993 wax Substances 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- 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
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/02—Preparation in the form of powder by spray drying
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Compositions, e.g. for laundry use, are obtained by forming a spray dried powder of detergent components and adding a non-ionic surfactant to the powder to obtain a final product containing between 5-15% metal sulphate content. The sulphate is typically Na 2 SO 4 . The spray dried powder has higher porosity and can absorb a larger amount of surfactant. The detergent is preferably in a granular form.
Description
DETERGENT COMPOSITIONS
The present invention relates to a process for the manufacture of detergent compositions comprising the application of surfactant to low metal sulphate-containing spray dried blown powder.
Detergents such as those used in clothes laundering are traditionally formulated with agents such as sodium sulphate. Such sulphate is generally incorporated at levels of between 15 and 40%. Although it is normal to use sodium sulphate for this purpose, other metal sulphate salts such as potassium sulphate may be used as an alternative.
The optimal application of surfactants in granular detergent compositions is on to the spray dried blown powder. The porosity of the blown powder is the limiting factor in determining the quantity of surfactant which can be introduced to the composition.
Existing sulphate containing blown powders have a relatively low porosity and do not absorb optimal amounts of surfactant when this is added.
The present inventors have shown that it is possible to produce low sulphate containing spray dried blown powder which has a high porosity so enabling the powder to absorb a greater quantity of surfactant. The higher level of non-ionic surfactant in the resultant detergent composition has been shown to improve greasy stain removal.
Hence there is provided according to the present invention, a process for the manufacture of a detergent composition comprising the addition of surfactant to a spray dried blown powder containing wherein the spray-dried blown powder has a metal sulphate content which produces a fluid metal sulphate content in the detergent composition between 5 and 15%.
The spray dried blown powder for use in the present invention may be generated using methods well known in the art and will comprise all the components of the detergent composition as described hereinafter, except the surfactant.
In particularly preferred embodiments of the present invention the spray dried blown powder has a surface area of greater than 0.7 square metres/gramme.
The surfactant system herein is preferably present in granular compositions in the form of blown powder. An aqueous slurry may be prepared using the liquid raw materials as well as the builder and some sulphate in a batch or continuous process.
Most conveniently a batch mixer, or 'crutcher' is used in which the various detergent components are dissolved in, or slurried with, water. Typically the aqueous slurry contains from about 20% to about 60% by weight of water, in particular from about 30% to about 40% by weight of water. This is referred to as the crutcher mix moisture. In the process of the present invention, the order of addition of the components of the aqueous slurry (or "crutcher mix") is not considered to be critical.
The drying of the aqueous slurry may be achieved by any one of several processes known to those skilled in the art, but it is preferably prepared by spray drying.
Following the spray drying route, an aqueous slurry is prepared comprising the solids. The slurry is then pumped at high pressure through atomising nozzles into a drying tower where excess water is driven off, producing a flowable powder. The resulting powder may then be oversprayed with liquid ingredients, especially nonionic surfactants for which the powder has a high adsorption capacity before it loses its good flow characteristics. Other powdered components of the finished laundry detergent may be dry mixed with the flowable powder produced by the above process.
Detergent compositions of the present invention may advantageously contain other components as described hereinafter. Detergent compositions of the present invention may advantageously contain other components as described hereinafter. The precise nature of these additional components and levels of incorporation thereof will depend on the physical form of the composition and the nature of the wasting operation for which it is to be used.
Detergent compositions prepared by the process of the invention will include a surfactant system.
Anionic surfactant
The surfactant system may comprise an anionic surfactant. Essentially any anionic surfactants useful for detersive purposes are suitable. These can include salts (including, for example, sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di- and triethanolamine salts) of the anionic sulfate, sulfonate, carboxylate and sarcosinate surfactants. Anionic sulfate surfactants are preferred.
Other anionic surfactants include the isethionates such as the acyl isethionates, N-acyl taurates, fatty acid amides of methyl tauride, alkyl succinates and sulfosuccinates, monoesters of sulfosuccinate (especially saturated and unsaturated C,2-CI8 monoesters) diesters of sulfosuccinate (especially saturated and unsaturated C6-C,4 diesters), N-acyl sarcosinates. Resin acids and hydrogenated resin acids are also suitable, such as rosin, hydrogenated rosin, and resin acids and hydrogenated resin acids present in or derived from tallow oil.
Anionic sulfate surfactant
Anionic sulfate surfactants suitable for use herein include the linear and branched primary and secondary alkyl sulfates, alkyl ethoxysulfates, fatty oleoyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates, the C5-C,7 acyl-N-(C1-C4 alkyl) and -N-(Cl-C2 hydroxyalkyl) glucamine sulfates, and sulfates of alkylpolysaccharides such as the sulfates of alkylpolyglucoside (the nonionic nonsulfated compounds being described herein).
Alkyl sulfate surfactants are preferably selected from the linear and branched primary C10-C18 alkyl sulfates, more preferably the Cll-C,5 branched chain alkyl sulfates and the Cl2-C,4 linear chain alkyl sulfates.
Alkyl ethoxysulfate surfactants are preferably selected from the group consisting of the C,0-cls alkyl sulfates which have been ethoxylated with from 0.5 to 20 moles of ethylene oxide per molecule. More preferably, the alkyl ethoxysulfate surfactant is a C"-ClS, most preferably Cll-Cl5 alkyl sulfate which has been ethoxylated with from 0.5 to 7, preferably from 1 to 5, moles of ethylene oxide per molecule.
A particularly preferred aspect of the invention employs mixtures of the preferred alkyl sulfate and alkyl ethoxysulfate surfactants. Such mixtures have been disclosed in PCT Patent Application No. WO 93/18124.
Anionic sulfonate surfactant
Anionic sulfonate surfactants suitable for use herein include the salts of C5-C2o linear alkylbenzene sulfonates, alkyl ester sulfonates, C6 - C22 primary or secondary alkane sulfonates, C6-C24 olefin sulfonates, sulfonated polycarboxylic acids, alkyl glycerol sulfonates, fatty acyl glycerol sulfonates, fatty oleyl glycerol sulfonates, and any mixtures thereof.
Anionic carboxylate surfactant
Suitable anionic carboxylate surfactants include the alkyl ethoxy carboxylates, the alkyl polyethoxy polycarboxylate surfactants and the soaps ('alkyl carboxyls'), especially certain secondary soaps as described herein.
Suitable alkyl ethoxy carboxylates include those with the formula RO(CH2CH20) x
CH2COO-M+ wherein R is a C6 to C18 alkyl group, x ranges from 0 to 10, and the ethoxylate distribution is such that, on a weight basis, the amount of material where x is 0 is less than 20 % and M is a cation. Suitable alkyl polyethoxy polycarboxylate surfactants include those having the formula RO-(CHR-CHR2-O)-R3 wherein R is a
C6 to C18 alkyl group, x is from 1 to 25, R, and R2 are selected from the group consisting of hydrogen, methyl acid radical, succinic acid radical, hydroxysuccinic acid radical, and mixtures thereof, and R3 is selected from the group consisting of hydrogen, substituted or unsubstituted hydrocarbon having between 1 and 8 carbon atoms, and mixtures thereof,
Suitable soap surfactants include the secondary soap surfactants which contain a carboxyl unit connected to a secondary carbon. Preferred secondary soap surfactants for use herein are water-soluble members selected from the group consisting of the water-soluble salts of 2-methyl- l -undecanoic acid, 2-ethyl-l-decanoic acid, 2-propyl- 1 -nonanoic acid, 2-butyl - 1 -octanoic acid and 2-pentyl- 1 -heptanoic acid.
Certain soaps may also be included as suds suppressors.
Alkali metal sarcos i nate surfactant
Other suitable anionic surfactants are the alkali metal sarcosinates of formula R-CON (R,) CH2 COOM, wherein R is a C5-Cl, linear or branched alkyl or alkenyl group,
R' is a Cl-C4 alkyl group and M is an alkali metal ion. Preferred examples are the myristyl and oleoyl methyl sarcosinates in the form of their sodium salts.
Cationic ester surfactant
The surfactant system may additionally or alternatively comprise a cationic ester surfactant. That is, a preferably water dispersible compound having surfactant properties comprising at least one ester (ie -COO-) linkage and at least one cationically charged group.
Suitable cationic ester surfactants, including choline ester surfactants, have for example been disclosed in US Patents No.s 4228042, 4239660 and 4260529.
Preferred cationic ester surfactants are those having the formula:
wherein R, is a C5-C3, linear or branched alkyl, alkenyl or alkaryl chain or M .N+(R6R,R8)(CH2)s; X and Y, independently, are selected from the group consisiting of COO, OCO, O, CO, OCOO, CONH, NHCO, OCONH and NHCOO wherein at least one of X or Y is a COO, OCO, OCOO, OCONH or NHCOO group; R2, R3,
R4, R6, R,, and R8 are independently selected from the group consisting of alkyl, alkenyl, hydroxyalkyl, hydroxy-alkenyl and alkaryl groups having from 1 to 4 carbon atoms; and R5 is independently H or a C2-C3 alkyl group; wherein the values of m, n, s and t independently lie in the range of from 0 to 8, the value of b lies in the range from 0 to 20, and the values of a, u and v independently are either 0 or 1 with the proviso that at least one of u or v must be 1; and wherein M is a counter anion.
Preferably R2, R3 and R4 are independently selected from CH3 and -CH3CH2OH.
Preferably M is selected from the group consisting of halide, methyl sulfate, sulfate, and nitrate, more preferably methyl sulfate, chloride, bromide or iodide.
Preferred water dispersible cationic ester surfactants are the choline esters having the formula:
wherein R1 is a Cl,-C,9 linear or branched alkyl chain.
Particularly preferred choline esters of this type include the stearoyl choline ester quaternary methylammonium halides (Rl=Cl, alkyl), palmitoyl choline ester quaternary methylammonium halides (Rl=Cl5 alkyl), myristoyl choline ester quaternary methylammonium halides (Rl =C,3 alkyl), lauroyl choline ester methylammonium halides (Rl=Cll alkyl), cocoyl choline ester quaternary methylammonium halides (Rl=Cll-Cl3 alkyl), tallowyl choline ester quaternary methylammonium halides (Rl =Cl5-Cl, alkyl), and any mixtures thereof.
The particularly preferred choline esters, given above, may be prepared by the direct esterification of a fatty acid of the desired chain length with dimethylaminoethanol, in the presence of an acid catalyst. The reaction product is then quaternized with a methyl halide, preferably in the presence of a solvent such as ethanol, propylene glycol or preferably a fatty alcohol ethoxylate such as Cl0-Cl8 fatty alcohol ethoxylate having a degree of ethoxylation of from 3 to 50 ethoxy groups per mole forming the desired cationic material. They may also be prepared by the direct esterification of a long chain fatty acid of the desired chain length together with 2-haloethanol, in the presence of an acid catalyst material. The reaction product is then quaternized with trimethylamine, forming the desired cationic material.
Other suitable cationic ester surfactants have the structural formulas below, wherein d may be from 0 to 20.
In a preferred aspect the cationic ester surfactant is hydrolysable under the conditions of a laundry wash method.
Other surfactant
The surfactant system may additionally or alternatively comprise nonionic, non-ester cationic, ampholytic, amphoteric and zwitterionic surfactants and mixtures thereof.
When a nonionic surfactant is present it may preferably comprise from 0.1 % to 50%, more preferably from 1% to 40% by weight, most preferably from 5% to 30% by weight of the surfactant system.
A typical listing of anionic, nonionic, ampholytic, and zwitterionic classes, and species of these surfactants, is given in U.S.P. 3,929,678 issued to Laughlin and
Heuring on December 30, 1975. Further examples are given in "Surface Active
Agents and Detergents" (Vol. I and II by Schwartz, Perry and Berch). A list of suitable cationic surfactants is given in U.S.P. 4,259,217 issued to Murphy on March 31, 1981.
Where present, ampholytic, amphoteric and zwitteronic surfactants are generally used in combination with one or more anionic and/or nonionic surfactants.
Alkoxvlated nonionic surfactant
Essentially any alkoxylated nonionic surfactants are suitable herein. The ethoxylated and propoxylated nonionic surfactants are preferred.
Preferred alkoxylated surfactants can be selected from the classes of the nonionic condensates of alkyl phenols, nonionic ethoxylated alcohols, nonionic ethoxylated/propoxylated fatty alcohols, nonionic ethoxylate/propoxylate condensates with propylene glycol, and the nonionic ethoxylate condensation products with propylene oxide/ethylene diamine adducts.
Nonionic alkoxvlated alcohol surfactant
The condensation products of aliphatic alcohols with from 1 to 25 moles of alkylene oxide, particularly ethylene oxide and/or propylene oxide, are suitable for use herein.
The alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from 6 to 22 carbon atoms. Particularly preferred are the condensation products of alcohols having an alkyl group containing from 8 to 20 carbon atoms with from 2 to 10 moles of ethylene oxide per mole of alcohol.
Nonionic polvhvdroxy fattv acid amide surfactant
Polyhydroxy fatty acid am ides suitable for use herein are those having the structural formula R2CONR1Z wherein : Rl is H, C2-C4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl, ethoxy, propoxy, or a mixture thereof, preferable Cl-C4 alkyl, more preferably Cl or C2 alkyl, most preferably C, alkyl (i.e., methyl); and R2 is a C5-C3s hydrocarbyl, preferably straight-chain C5-C,9 alkyl or alkenyl, more preferably straight-chain Cg-Cl, alkyl or alkenyl, most preferably straight-chain C"-C,7 alkyl or alkenyl, or mixture thereof; and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof. Z preferably will be derived from a reducing sugar in a reductive amination reaction; more preferably Z is a glycityl.
Nonionic fattv acid amide surfactant
Suitable fatty acid amide surfactants include those having the formula: R6CON(R7)2 wherein R6 is an alkyl group containing from 7 to 21, preferably from 9 to 17 carbon atoms and each R7 is selected from the group consisting of hydrogen, Cl-C4 alkyl, Cl-C4 hydroxyalkyl, and -(C2H4O)IH, where x is in the range of from 1 to 3.
Nonionic alkvlpol vsaccharide surfactant
Suitable alkylpolysaccharides for use herein are disclosed in U.S. Patent 4,565,647, Llenado, issued January 21, 1986, having a hydrophobic group containing from 6 to 30 carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilic group containing from 1.3 to 10 saccharide units.
Preferred alkylpol ygl ycos ides have the formula R2O(CnH2nO)t(glYCosyl)x wherein R2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from 10 to 18 carbon atoms; n is 2 or 3; t is from 0 to 10, and x is from 1.3 to 8. The glycosyl is preferably derived from glucose.
Amphoteric surfactant
Suitable amphoteric surfactants for use herein include the amine oxide surfactants and the alkyl amphocarboxylic acids.
Suitable amine oxides include those compounds having the formula R3(OR4)2N0(R5)2 wherein R3 is selected from an alkyl, hydroxyalkyl, acylamidopropoyl and alkyl phenyl group, or mixtures thereof, containing from 8 to 26 carbon atoms; R4is an alkylene or hydroxyalkylene group containing from 2 to 3 carbon atoms, or mixtures thereof; x is from 0 to 5, preferably from 0 to 3; and each Ras is an alkyl or hydroxyalkyl group containing from 1 to 3, or a polyethylene oxide group containing from I to 3 ethylene oxide groups. Preferred are C,0-C,8 alkyl dimethylamine oxide, and C,0-,8 acylamido alkyl dimethylamine oxide.
A suitable example of an alkyl aphodicarboxylic acid is Miranol(TM) C2M Conc.
manufactured by Miranol, Inc., Dayton, NJ.
Zwitterionic surfactant
Zwitterionic surfactants can also be incorporated into the detergent compositions hereof. These surfactants can be broadly described as derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. Betaine and sultaine surfactants are exemplary zwitterionic surfactants for use herein.
Suitable betaines are those compounds having the formula R(R')2N+R2COO- wherein
R is a C6-C18 hydrocarbyl group, each R' is typically Cl-C3 alkyl, and R2 is a C,-C5 hydrocarbyl group. Preferred betaines are Cl2-l8 dimethyl-ammonio hexanoate and the C 10- 18 acylamidopropane (or ethane) dimethyl (or diethyl) betaines. Complex betaine surfactants are also suitable for use herein.
Cationic surfactants
Other cationic surfactants can also be used in the detergent compositions herein.
Suitable cationic surfactants include the quaternary ammonium surfactants selected from mono C6-C16, preferably C6-C,0 N-alkyl or alkenyl ammonium surfactants wherein the remaining N positions are substituted by methyl, hydroxyethyl or hydroxypropyl groups.
Alkalinitv system
The compositions of the present invention may contain from 1.5 % to 95 %, preferably from 5% to 60%, most preferably from 10% to 40% by weight of the composition of an alkalinity system comprising components capable of providing alkalinity species in solution. By alkalinity species it is meant for the purposes of this invention: carbonate, bicarbonate, hydroxide and the various silicate anions. Such alkalinity species can be formed for example, when alkaline salts selected from alkali metal or alkaline earth carbonate, bicarbonate, hydroxide or silicate, including crystalline layered silicate, salts and any mixtures thereof are dissolved in water. Alkali metal percarbonate and persilicate salts are also suitable sources of alkalinity species.
The amount of alkalinity which a detergent composition is capable of delivering to a wash solution is desirably controlled. To enable practical comparison of the relative capacity of compositions containing different alkaline components to deliver alkalinity to a wash solution it is useful to express the alkalinity released on addition of the compositions to the wash solution in terms of % weight equivalent of NaOH. That is, in terms of the % weight of NaOH which would have equivalent 'alkaline effect', e. g. in neutralising acid species, to that of the alkalinity species actually released when the composition is added to the wash. For uniform comparison it is also then useful to define standard wash solution characteristics. Thus, the capacity to deliver alkalinity to a wash solution is herein characterized by reference to a representative test method now described.
Alkalinity release test method
A Ig sample of detergent composition is added to 100 ml of distilled water at a temperature of 30"C with stirring at 150 rpm using a magnetic stirrer of size 2cm, thus providing a 1 % detergent solution, as would be a typical concentration of a laundry wash solution. The solution is titrated against a standard HCI solution using any suitable titration method. Commonly known acid-base titration methods employing colorimetric end-point determination methods, for example using chemical end-point indicators are particularly suitable. Thus, the number of moles of HCI which the detergent solution is capable of neutralising is obtained. For the avoidance of doubt, 'neutralising' in this context is defined to mean titrating to pH 7. This number will be equivalent to the number of moles of alkalinity, expressed as NaOH equivalent, present in the detergent solution. Thus, the % weight equivalent NaOH present in the sample of the detergent composition may be calculated as: % weight equivalent NaOH = 100 x number of moles NaOH equivalent in solution x Mw of NaOH
Theoretical maximum alkalinitv
Where the compositional make up of a detergent product is known, it is possible to calculate the theoretical maximum alkalinity, expressed as % weight equivalent of
NaOH, which the product could provide to a solution as the sum over each alkaline species of: % weight (alkaline species) . Mw (NaOH . n / Mw(alkaline species) where n is the formal negative charge carried by the alkaline species.
As an example, a composition containing 1% sodium carbonate is equivalent to a theoretical maximum of 0.756% NaOH, obtained as (1 x 40 x 2)/106, since this amount of NaOH in the composition would theoretically neutralise the same amount of acid as the 1 % sodium carbonate alkaline component.
In reality, however detergent compositions also tend to comprise acidic species e. g.
carboxylate builders whose presence will tend to reduce the alkalinity delivery capacity of a composition from its maximum theoretical value.
Alkalinitv requirement
The alkalinity system is preferably present in the detergent composition such that the capacity to deliver alkalinity to a wash solution measured by the given test method is such that the weight NaOH equivalent of the composition is generally greater than 7%, preferably greater than 8%, most preferably greater than 9% by weight of the composition.
The weight ratio in the composition of anionic surfactant to weight NaOH equivalent is preferably from 4:1 to 1:8, more preferably from 2:1 to 1:5, most preferably from 1:1 to 1:3.
Examples of carbonates are the alkaline earth and alkali metal carbonates, including sodium carbonate and sesqui-carbonate and any mixtures thereof with ultra-fine calcium carbonate such as are disclosed in German Patent Application No. 2,321,001 published on November 15, 1973. Alkali metal percarbonate salts are also suitable sources of carbonate species and are described in more detail in the section 'inorganic perhydrate salts' herein.
Suitable silicates include the water soluble sodium silicates with an Si02: Na,O ratio of from 1.0 to 2.8, with ratios of from 1.6 to 2.0 being preferred, and 2.0 ratio being most preferred. The silicates may be in the form of either the anhydrous salt or a hydrated salt. Sodium silicate with an SiO2: Na20 ratio of 2.0 is the most preferred silicate. Alkali metal persilicates are also suitable sources of silicate herein.
Preferred crystalline layered silicates for use herein have the general formula NaMSi2+ 1 .yH2O wherein M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to 20. Crystalline layered sodium silicates of this type are disclosed in
EP-A-0164514 and methods for their preparation are disclosed in DE-A-3417649 and
DE-A-3742043. Herein, x in the general formula above preferably has a value of 2, 3 or 4 and is preferably 2. The most preferred material is b-Na Si205, available from
Hoechst AG as NaSKS-6.
The crystalline layered silicate material is preferably present in granular detergent compositions as a particulate in intimate admixture with a solid, water-soluble ionisable material. The solid, water-soluble ionisable material is selected from organic acids, organic and inorganic acid salts and mixtures thereof.
Additional detergent components
The compositions of the invention preferably also contain one or more additional detergent components selected from bleaches, builders, organic polymeric compounds, enzymes, suds suppressors, lime soap dispersants, soil suspension and anti-redeposition agents and corrosion inhibitors.
Water-soluble builder compound
The detergent compositions of the present invention preferably contain a water-soluble builder compound, typically present at a level of from 1% to 80% by weight, preferably from 10% to 70% by weight, most preferably from 20% to 60% by weight of the composition.
Suitable water-soluble builder compounds include the water soluble monomeric polycarboxylates, or their acid forms, homo or copolymeric polycarboxylic acids or their salts in which the polycarboxylic acid comprises at least two carboxylic radicals separated from each other by not more that two carbon atoms, borates, phosphates, and mixtures of any of the foregoing.
The carboxylate or polycarboxylate builder can be momomeric or oligomeric in type although monomeric polycarboxylates are generally preferred for reasons of cost and performance.
Suitable carboxylates containing one carboxy group include the water soluble salts of lactic acid, glycolic acid and ether derivatives thereof. Polycarboxylates containing two carboxy groups include the water-soluble salts of succinic acid, malonic acid, (ethylenedioxy) diacetic acid, maleic acid, diglycolic acid, tartaric acid, tartronic acid and fumaric acid, as well as the ether carboxylates and the sulfinyl carboxylates.
Polycarboxylates containing three carboxy groups include, in particular, water-soluble citrates, aconitrates and citraconates as well as succinate derivatives such as the carboxymethyloxysuccinates described in British Patent No. 1,379,241, lactoxysuccinates described in British Patent No. 1,389,732, and aminosuccinates described in Netherlands Application 7205873, and the oxypolycarboxylate materials such as 2-oxa-1,1,3-propane tricarboxylates described in British Patent No.
1,387,447.
Polycarboxylates containing four carboxy groups include oxydisuccinates disclosed in British Patent No. 1,261,829, 1,1,2,2-ethane tetracarboxylates, 1,1,3,3-propane tetracarboxylates and 1,1,2,3-propane tetracarboxylates. Polycarboxylates containing sulfo substituents include the sulfosuccinate derivatives disclosed in British Patent
Nos. 1,398,421 and 1,398,422 and in U.S. Patent No. 3,936,448, and the sulfonated pyrolysed citrates described in British Patent No. 1,439,000. Preferred polycarboxylates are hydroxycarboxylates containing up to three carboxy groups per molecule, more particularly citrates.
The parent acids of the monomeric or oligomeric polycarboxylate chelating agents or mixtures thereof with their salts, e.g. citric acid or citrate/citric acid mixtures are also contemplated as useful builder components.
Borate builders, as well as builders containing borate-forming materials that can produce borate under detergent storage or wash conditions are useful water-soluble builders herein.
Suitable examples of water-soluble phosphate builders are the alkali metal tripolyphosphates, sodium, potassium and ammonium pyrophosphate, sodium and potassium and ammonium pyrophosphate, sodium and potassium orthophosphate, sodium polymeta/phosphate in which the degree of polymerization ranges from about 6 to 21, and salts of phytic acid.
Partiallv soluble or insoluble builder compound
The detergent compositions of the present invention may contain a partially soluble or insoluble builder compound, typically present at a level of from 1 % to 80% by weight, preferably from 10% to 70% by weight, most preferably from 20% to 60% weight of the composition.
Examples of largely water insoluble builders include the sodium aluminosilicates.
Suitable aluminosilicate zeolites have the unit cell formula Naz[(AlO,O)z(SiO2)yJ.
xH2O wherein z and y are at least 6; the molar ratio of z to y is from 1.0 to 0.5 and x is at least 5, preferably from 7.5 to 276, more preferably from 10 to 264. The aluminosilicate material are in hydrated form and are preferably crystalline, containing from 10% to 28%, more preferably from 18% to 22% water in bound form.
The aluminosilicate zeolites can be naturally occurring materials, but are preferably synthetically derived. Synthetic crystalline aluminosilicate ion exchange materials are available under the designations Zeolite A, Zeolite B, Zeolite P, Zeolite X, Zeolite
HS and mixtures thereof. Zeolite A has the formula
Na 12 [(AlO2) 12 (Si 2)l xH2O wherein x is from 20 to 30, especially 27. Zeolite X has the formula Na, [(Al02)86(SiO2)l06]- 276 H20.
Organic peroxyacid bleaching svstem
A preferred feature of detergent compositions of the invention is an organic peroxyacid bleaching system. In one preferred execution the bleaching system contains a hydrogen peroxide source and an organic peroxyacid bleach precursor compound. The production of the organic peroxyacid occurs by an in situ reaction of the precursor with a source of hydrogen peroxide. Preferred sources of hydrogen peroxide include inorganic perhydrate bleaches. In an alternative preferred execution a preformed organic peroxyacid is incorporated directly into the composition.
Compositions containing mixtures of a hydrogen peroxide source and organic peroxyacid precursor in combination with a preformed organic peroxyacid are also envisaged.
Inorganic perhydrate bleaches
Inorganic perhydrate salts are a preferred source of hydrogen peroxide. These salts are normally incorporated in the form of the alkali metal, preferably sodium salt at a level of from 1% to 40% by weight, more preferably from 2% to 30% by weight and most preferably from 5% to 23% by weight of the compositions.
Examples of inorganic perhydrate salts include perborate, percarbonate, perphosphate, persulfate and persilicate salts. The inorganic perhydrate salts are normally the alkali metal salts. The inorganic perhydrate salt may be included as the crystalline solid without additional protection. For certain perhydrate salts however, the preferred executions of such granular compositions utilize a coated form of the material which provides better storage stability for the perhydrate salt in the granular product.
Suitable coatings comprise inorganic salts such as alkali metal silicate, carbonate or borate salts or mixtures thereof, or organic materials such as waxes, oils, or fatty soaps.
Sodium perborate is a preferred perhydrate salt and can be in the form of the monohydrate of nominal formula NaBO2H202 or the tetrahydrate NaBO2H202.3H2O).
Alkali metal percarbonates, particularly sodium percarbonate are preferred perhydrates herein. Sodium percarbonate is an addition compound having a formula corresponding to 2Na2CO3.3H202, and is available commercially as a crystalline solid.
Potassium peroxymonopersulfate is another inorganic perhydrate salt of use in the detergent compositions herein.
Peroxyacid bleach precursor.
Peroxyacid bleach precursors are compounds which react with hydrogen peroxide in a perhydrolysis reaction to produce a peroxyacid. Generally peroxyacid bleach precursors may be represented as
where L is a leaving group and X is essentially any functionality, such that on perhydroloysis the structure of the peroxyacid produced is
Peroxyacid bleach precursor compounds are preferably incorporated at a level of from 0.5% to 20% by weight, more preferably from 1% to 15% by weight, most preferably from 1.5% to 10% by weight of the detergent compositions.
Suitable peroxyacid bleach precursor compounds typically contain one or more N- or
O-acyl groups, which precursors can be selected from a wide range of classes.
Suitable classes include anhydrides, esters, imides, lactams and acylated derivatives of imidazoles and oximes. Examples of useful materials within these classes are disclosed in GB-A-1586789. Suitable esters are disclosed in GB-A-836988, 864798, 1147871, 2143231 and EP-A-0170386.
Leaving groups
The leaving group, hereinafter L group, must be sufficiently reactive for the perhydrolysis reaction to occur within the optimum time frame (e.g., a wash cycle).
However, if L is too reactive, this activator will be difficult to stabilize for use in a bleaching composition.
Preferred L groups are selected from the group consisting of:
and mixtures thereof, wherein Rl is an alkyl, aryl, or alkaryl group containing from 1 to 14 carbon atoms, R3 is an alkyl chain containing from 1 to 8 carbon atoms, R4 is H or R3, and Y is H or a solubilizing group. Any of R', R3 and R4 may be substituted by essentially any functional group including, for example alkyl, hydroxy, alkoxy, halogen, amine, nitrosyl, amide and ammonium or alkyl ammmonium groups
The preferred solubilizing groups are -SO3-M+, -CO2 -M+, -SO4-M+, -N+(R3)4X- and
O < --N(R3)3 and most preferably -SO3 -M+ and -CO2-M+ and wherein R3 is an alkyl chain containing from 1 to 4 carbon atoms, M is a cation which provides solubility to the bleach activator and X is an anion which provides solubility to the bleach activator. Preferably, M is an alkali metal, ammonium or substituted ammonium cation, with sodium and potassium being most preferred, and X is a halide, hydroxide, methylsulfate or acetate anion.
Alkyl percarboxylic acid bleach precursors
Alkyl percarboxylic acid bleach precursors form percarboxylic acids on perhydrolysis.
Preferred precursors of this type provide peracetic acid on perhydrolysis.
Preferred alkyl percarboxylic precursor compounds of the imide type include the N-,N,N'N' tetra acetylated alkylene diamines wherein the alkylene group contains from 1 to 6 carbon atoms, particularly those compounds in which the alkylene group contains 1, 2 and 6 carbon atoms. Tetraacetyl ethylene diamine (TAED) is particularly preferred.
Other preferred alkyl percarboxylic acid precursors include sodium 3,5,5-tri-methyl hexanoyloxybenzene sulfonate (iso-NOBS), sodium nonanoyloxybenzene sulfonate (NOBS), sodium acetoxybenzene sulfonate (ABS) and pentaacetyl glucose.
Amide substituted alkvl peroxvacid precursors
Amide substituted alkyl peroxyacid precursor compounds are suitable herein, including those of the following general formulae:
wherein Rl is an alkyl group with from 1 to 14 carbon atoms, R2 is an alkylene group containing from 1 to 14 carbon atoms, and R5 is H or an alkyl group containing 1 to 10 carbon atoms and L can be essentially any leaving group. Amide substituted bleach activator compounds of this type are described in EP-A-0170386.
Perbenzoic acid precursor
Perbenzoic acid precursor compounds provide perbenzoic acid on perhydrolysis.
Suitable O-acylated perbenzoic acid precursor compounds include the substituted and unsubstituted benzoyl oxybenzene sulfonates, and the benzoylation products of sorbitol, glucose, and all saccharides with benzoylating agents, and those of the imide type including N-benzoyl succinimide, tetrabenzoyl ethylene diamine and the
N-benzoyl substituted ureas. Suitable imidazole type perbenzoic acid precursors include N-benzoyl imidazole and N-benzoyl benzimidazole. Other useful N-acyl group-containing perbenzoic acid precursors include N-benzoyl pyrrolidone, dibenzoyl taurine and benzoyl pyroglutamic acid.
Cationic peroxvacid precursors
Cationic peroxyacid precursor compounds produce cationic peroxyacids on perhydrolysis.
Typically, cationic peroxyacid precursors are formed by substituting the peroxyacid part of a suitable peroxyacid precursor compound with a positively charged functional group, such as an ammonium or alkyl ammmonium group, preferably an ethyl or methyl ammonium group. Cationic peroxyacid precursors are typically present in the solid detergent compositions as a salt with a suitable anion, such as a halide ion.
The peroxyacid precursor compound to be so cationically substituted may be a perbenzoic acid, or substituted derivative thereof, precursor compound as described hereinbefore. Alternatively, the peroxyacid precursor compound may be an alkyl percarboxylic acid precursor compound or an amide substituted alkyl peroxyacid precursor as described hereinafter
Cationic peroxyacid precursors are described in U.S. Patents 4,904,406; 4,751,015; 4,988,451; 4,397,757; 5,269,962; 5,127,852; 5,093,022; 5,106,528; U.K.
1,382,594; EP 475,512, 458,396 and 284,292; and in JP 87-318,332.
Examples of preferred cationic peroxyacid precursors are described in UK Patent
Application No. 9407944.9 and US Patent Application Nos. 08/298903, 08/298650, 08/298904 and 08/298906.
Suitable cationic peroxyacid precursors include any of the ammonium or alkyl ammonium substituted alkyl or benzoyl oxybenzene sulfonates, N-acylated caprolactams, and monobenzoyltetraacetyl glucose benzoyl peroxides. Preferred cationic peroxyacid precursors of the N-acylated caprolactam class include the trialkyl ammonium methylene benzoyl caprolactams and the trialkyl ammonium methylene alkyl caprolactams.
Benzoxazin organic peroxyacid precursors
Also suitable are precursor compounds of the benzoxazin-type, as disclosed for example in EP-A-332,294 and EP-A-482,807, particularly those having the formula:
wherein R1 is H, alkyl, alkaryl, aryl, or arylalkyl.
Preformed organic peroxyacid
The organic peroxyacid bleaching system may contain, in addition to, or as an alternative to, an organic peroxyacid bleach precursor compound, a preformed organic peroxyacid , typically at a level of from 1% to 15% by weight, more preferably from 1 % to 10% by weight of the composition.
A preferred class of organic peroxyacid compounds are the amide substituted compounds of the following general formulae:
wherein R' is an alkyl, aryl or alkaryl group with from 1 to 14 carbon atoms, R2 is an alkylene, arylene, and alkarylene group containing from 1 to 14 carbon atoms, and
R5 is H or an alkyl, aryl, or alkaryl group containing 1 to 10 carbon atoms. Amide substituted organic peroxyacid compounds of this type are described in
EP-A-0170386.
Other organic peroxyacids include diacyl and tetraacylperoxides, especially diperoxydodecanedioc acid, diperoxytetradecaned ioc acid and diperoxyhexadecanedioc acid. Mono- and diperazelaic acid, mono- and diperbrassylic acid and
N-phthaloylaminoperoxicaproic acid are also suitable herein.
Bleach catalyst
The compositions optionally contain a transition metal containing bleach catalyst. One suitable type of bleach catalyst is a catalyst system comprising a heavy metal cation of defined bleach catalytic activity, such as copper, iron or manganese cations, an auxiliary metal cation having little or no bleach catalytic activity, such as zinc or aluminum cations, and a sequestrant having defined stability constants for the catalytic and auxiliary metal cations, particularly ethylenediaminetetraacetic acid, ethylenediaminetetra(methylenephosphonic acid) and water-soluble salts thereof. Such catalysts are disclosed in U.S. Pat. 4,430,243.
Other types of bleach catalysts include the manganese-based complexes disclosed in
U.S. Pat. 5,246,621 and U.S. Pat. 5,244,594. Preferred examples of these catalysts include Mn'C2(u-O)3( 1 ,4,7-trimethyl- 1 ,4,7-triazacyclononane)2-(PF6)2, Mn"x2(u-O) I(u-OAc)2( 1,4 , 7 -tri meth yl - I, 4, 7-tr iazacyc I ononane)2-(C 104)2, M nv4 ( u - 0)6(1 , 4 , 7 - t r i a z a c y c 10 no nan e ) 2 - (C I 04)2, MntlMntv4(u-O)4(u-OAc)2-( 1,4 7-trimethyl - 1 ,4,7-triazacyclononane)2-(CIO4)3, and mixtures thereof. Others are described in European patent application publication no.
549,272. Other ligands suitable for use herein include 1,5, 9-trimethyl- 1,5, 9-triazacyclododecane, 2-methyl- 1 ,4,7-triazacyclononane, 2-methyl- 1 ,4,7-triazacyclononane, 1,2,4,7-tetramethyl- 1,4,7-triazacyclononane, and mixtures thereof.
For examples of suitable bleach catalysts see U.S. Pat. 4,246,612 and U.S. Pat.
5,227,084. See also U.S. Pat. 5,194,416 which teaches mononuclear manganese (IV) complexes such as Mn(1,4,7-trimethyl-1,4,7-triazacyclononane)(OCH3)3-(PF6). Still another type of bleach catalyst, as disclosed in U.S. Pat. 5,114,606, is a water-soluble complex of manganese (III), and/or (IV) with a ligand which is a non-carboxylate polyhydroxy compound having at least three consecutive C-OH groups. Other examples include binuclear Mn complexed with tetra-N-dentate and bi-N-dentate ligands, including N4Mn'l'(u-O)2Mn'vN4)+and [Bipy2Mnm(u-0)2Mnrvbipy2]-(CI04)3 .
Further suitable bleach catalysts are described, for example, in European patent application No. 408,131 (cobalt complex catalysts), European patent applications, publication nos. 384,503, and 306,089 (metallo-porphyrin catalysts), U.S. 4,728,455 (manganese/multidentate ligand catalyst), U.S. 4,711,748 and European patent application, publication no. 224,952, (absorbed manganese on aluminosilicate catalyst), U.S. 4,601,845 (aluminosilicate support with manganese and zinc or magnesium salt), U.S. 4,626,373 (manganese/ligand catalyst), U.S. 4,119,557 (ferric complex catalyst), German Pat. specification 2,054,019 (cobalt chelant catalyst)
Canadian 866,191 (transition metal-containing salts), U.S. 4,430,243 (chelants with manganese cations and non-catalytic metal cations), and U.S. 4,728,455 (manganese gluconate catalysts).
Heavv metal ion sequestrant
The detergent compositions of the invention preferably contain as an optional component a heavy metal ion sequestrant. By heavy metal ion sequestrant it is meant herein components which act to sequester (chelate) heavy metal ions. These components may also have calcium and magnesium chelation capacity, but preferentially they show selectivity to binding heavy metal ions such as iron, manganese and copper.
Heavy metal ion sequestrants are generally present at a level of from 0.005% to 20%, preferably from 0.1% to 10%, more preferably from 0.25R to 7.5% and most preferably from 0.5 % to 5 % by weight of the compositions.
Suitable heavy metal ion sequestrants for use herein include organic phosphonates, such as the amino alkylene poly (alkylene phosphonates), alkali metal ethane 1-hydroxy disphosphonates and nitrilo trimethylene phosphonates.
Preferred among the above species are diethylene triamine penta (methylene phosphonate), ethylene diamine tri (methylene phosphonate) hexamethylene diamine tetra (methylene phosphonate) and hydroxy-ethylene 1,1 diphosphonate.
Other suitable heavy metal ion sequestrant for use herein include nitrilotriacetic acid and polyaminocarboxylic acids such as ethylenediaminotetracetic acid, ethylenetriamine pentacetic acid, ethylenediamine disuccinic acid, ethylenediamine diglutaric acid, 2-hydroxypropylenediamine disuccinic acid or any salts thereof.
Especially preferred is ethylenediamine-N,N'-disuccinic acid (EDDS) or the alkali metal, alkaline earth metal, ammonium, or substituted ammonium salts thereof, or mixtures thereof.
Other suitable heavy metal ion sequestrants for use herein are iminodiacetic acid derivatives such as 2-hydroxyethyl diacetic acid or glyceryl imino diacetic acid, described in EP-A-317,542 and EP-A-399, 133. The iminodiacetic acid-N-2-hydroxypropyl sul fon ic acid and aspartic acid N-carboxymethyl
N-2-hydroxypropyl-3-sulfonic acid sequestrants described in EP-A-516, 102 are also suitable herein. The P-alanine-N,N'-diacetic acid, aspartic acid-N,N'-diacetic acid, aspartic acid-N-monoacetic acid and iminodisuccinic acid sequestrants described in
EP-A-509,382 are also suitable.
EP-A476,257 describes suitable amino based sequestrants. EP-A-510,331 describes suitable sequestrants derived from collagen, keratin or casein. EP-A-528,859 describes a suitable alkyl iminodiacetic acid sequestrant. Dipicolinic acid and 2-phosphonobutane- 1 ,2,4-tricarboxylic acid are alos suitable.
Glycinamide-N,N'-disuccinic acid (GADS), ethylenediamine-N-N'-diglutaric acid (EDDG) and 2-hydroxypropylenediamine-N-N'-disuccinic acid (HPDDS) are also suitable.
Enzyme
Another preferred ingredient useful in the detergent compositions is one or more additional enzymes.
Preferred additional enzymatic materials include the commercially available lipases, cutinases, amylases, neutral and alkaline proteases, esterases, cellulases, pectinases, lactases and peroxidases conventionally incorporated into detergent compositions.
Suitable enzymes are discussed in US Patents 3,519,570 and 3,533,139.
Preferred commercially available protease enzymes include those sold under the tradenames Alcalase, Savinase, Primase, Durazym, and Esperase by Novo Industries
A/S (Denmark), those sold under the tradename Maxatase, Maxacal and Maxapem by Gist-Brocades, those sold by Genencor International, and those sold under the tradename Opticlean and Optimase by Solvay Enzymes. Protease enzyme may be incorporated into the compositions in accordance with the invention at a level of from 0.0001% to 4% active enzyme by weight of the composition.
Preferred amylases include, for example, a-amylases obtained from a special strain of B licheniformis, described in more detail in GB-1,269,839 (Novo). Preferred commercially available amylases include for example, those sold under the tradename
Rapidase by Gist-Brocades, and those sold under the tradename Termamyl and BAN by Novo Industries A/S. Amylase enzyme may be incorporated into the composition in accordance with the invention at a level of from 0.0001 % to 2% active enzyme by weight of the composition.
Lipolytic enzyme may be present at levels of active lipolytic enzyme of from 0.0001% to 2% by weight, preferably 0.001% to 1% by weight, most preferably from 0.001 % to 0.5 % by weight of the compositions.
The lipase may be fungal or bacterial in origin being obtained, for example, from a lipase producing strain of Humicola sp., Thermomyces sp. or Pseudomonas sp.
including Pseudomonas pseudoalcaligenes or Pseudomas fluorescens. Lipase from chemically or genetically modified mutants of these strains are also useful herein. A preferred lipase is derived from Pseudomonas pseudoalcaligenes, which is described in Granted European Patent, EP-B-0218272.
Another preferred lipase herein is obtained by cloning the gene from Humicola lanuginosa and expressing the gene in Aspergillus oryza, as host, as described in
European Patent Application, EP-A-0258 068, which is commercially available from
Novo Industri A/S, Bagsvaerd, Denmark, under the trade name Lipolase. This lipase is also described in U.S. Patent 4,810,414, Huge-Jensen et al, issued March 7, 1989.
Organic polymeric compound
Organic polymeric compounds are preferred additional components of the detergent compositions in accord with the invention, and are preferably present as components of any particulate components where they may act such as to bind the particulate component together. By organic polymeric compound it is meant herein essentially any polymeric organic compound commonly used as dispersants, and anti-redeposition and soil suspension agents in detergent compositions, including any of the high molecular weight organic polymeric compounds described as clay flocculating agents herein.
Organic polymeric compound is typically incorporated in the detergent compositions of the invention at a level of from 0.1% to 30%, preferably from 0.5% to 15%, most preferably from 1% to 10% by weight of the compositions.
Examples of organic polymeric compounds include the water soluble organic homoor co-polymeric polycarboxylic acids or their salts in which the polycarboxylic acid comprises at least two carboxyl radicals separated from each other by not more than two carbon atoms. Polymers of the latter type are disclosed in GB-A-1,596,756.
Examples of such salts are polyacrylates of MWt 2000-5000 and their copolymers with maleic anhydride, such copolymers having a molecular weight of from 20,000 to 100,000, especially 40,000 to 80,000.
The polyamino compounds are useful herein including those derived from aspartic acid such as those disclosed in EP-A-305282, EP-A-305283 and EP-A-351629.
Terpolymers containing monomer units selected from maleic acid, acrylic acid, polyaspartic acid and vinyl alcohol, particularly those having an average molecular weight of from 5,000 to 10,000, are also suitable herein.
Other organic polymeric compounds suitable for incorporation in the detergent compositions herein include cellulose derivatives such as methylcellulose, carboxymethylcellulose, hydroxypropyl methylcel lulose and hydroxyethylcellulose.
Further useful organic polymeric compounds are the polyethylene glycols, particularly those of molecular weight 1000-10000, more particularly 2000 to 8000 and most preferably about 4000.
The detergent compositions of the invention, when formulated for use in machine washing compositions, preferably comprise a suds suppressing system present at a level of from 0.01% to 15%, preferably from 0.05% to 10%, most preferably from 0.1 % to 5% by weight of the composition.
Suitable suds suppressing systems for use herein may comprise essentially any known antifoam compound, including, for example silicone antifoam compounds.
By antifoam compound it is meant herein any compound or mixtures of compounds which act such as to depress the foaming or sudsing produced by a solution of a detergent composition, particularly in the presence of agitation of that solution.
Particularly preferred antifoam compounds for use herein as any antifoam compound including a silicone component. Such silicone antifoam compounds also typically contain a silica component. The term "silicone" as used herein, and in general thoughout the industry, encompasses a variety of relatively high molecular weight polymers containing siloxane units and hydrocarbyl group of various types. Preferred silicone antifoam compounds are the siloxanes, particularly the polydimethylsiloxanes having trimethylsilyl end blocking units.
Other suitable antifoam compounds inlude the monocarboxylic fatty acids and soluble salts thereof. These materials are described in US patent 2,954,347, issued 27
September 1960 to Wayne St. John. The monocarboxylic fatty acids, and salts thereof, for use as suds suppressor typically have hydrocarbyl chains of 10 to 24 carbon atoms, preferably 12 to 18 carbon atoms. Suitable salts include the alkali metal salts such as sodium, potassium, and lithium salts, and ammonium and alkanolammonium salts.
Other suitable antifoam compounds include, for example, high molecular weight fatty esters (e.g. fatty acid triglycerides), fatty acid esters of monovalent alcohols, aliphatic C,8-C40 ketones (e.g. stearone) N-alkylated amino triazines such as tri- to hexaalkylmelamines or di- to tetra alkyldiamine chlortriazines formed as products of cyanuric chloride with two or three moles of a primary or secondary amine containing 1 to 24 carbon atoms, propylene oxide, bis stearic acid amide and monstearyl dialkali metal (e.g. sodium, potassium, lithium) phosphates and phosphate esters.
A preferred suds suppressing system comprises (a) antifoam compound, preferably silicone antifoam compound, most preferably a silicone antifoam compound comprising in combination
(i) polydimethyl siloxane, at a level of from 50% to 99 %, preferably 75 %
to 95% by weight of the silicone antifoam compound; and
(ii) silica, at a level of from 1 % to 50%, preferably 5 % to 25 % by weight
of the silicone/silica antifoam compound; wherein said silica/silicone
antifoam compound is incorporated at a level of from 5% to 50%,
preferably 10% to 40% by weight of the sprayon component;
(b) a dispersant compound, most preferably comprising a silicone glycol
rake copolymer with a polyoxyalkylene content of 72-78% and an ethylene
oxide to propylene oxide ratio of from 1:0.9 to 1:1. 1, at a level of from 0.5 % to 10%, preferably 1% to 10% by weight of the spray-on component; a
particularly preferred silicone glycol rake copolymer of this type is DC0544
(trade name), commercially available from DOW Corning.
(c) an inert carrier fluid compound, most preferably comprising aC,6-C,8
ethoxylated alcohol with a degree of ethoxylation of from 5 to 50, preferably
8 to 15, at a level of from 5% to 80%, preferably 10% to 70%, by weight of
the spray-on component.
Preferably the suds suppressor is present in particulate form. By particulate form it is meant essentially any of the particulate forms which may be typically adapted by a component of a granular detergent composition for example, in the form of granules, flakes, prills, marumes or noodles. In a preferred embodiment the particulate is granular in nature. Granules themselves may be agglomerates formed by pan or drum agglomeration or by an in-line mixer, and also may be spray-dried particles produced by atomising an aqueous slurry of the ingredients in a hot air stream which removes most of the water. The spray dried granules are then subjected to densification steps, eg : by high speed cutter mixers and/or compacting mills, to increase density before being reagglomerated.
Such a particulate suds suppressing system for use in the present invention, preferably, comprises in combination antifoam compound and a carrier material which is highly preferably water-soluble or water-dispersible in nature.
A suitable particulate antifoam component useful in the compositions herein comprises a mixture of an alkylated siloxane of the type hereinabove disclosed and solid silica.
The solid silica may be a fumed silica, a precipitated silica or a silica, made by the gel formation technique. Suitable silica particles suitable may have an average particle size of from 0.1 to 50 micrometers, preferably from 1 to 20 micrometers and a surface area of at least 50m2/g. These silica particles can be rendered hydrophobic by treating them with dialkylsilyl groups and/or trialkylsilyl groups either bonded directly onto the silica or by means of a silicone resin. It is preferred to employ a silica the particles of which have been rendered hydrophobic with dimethyl and/or trimethyl silyl groups. A preferred particulate antifoam compound for inclusion in the detergent compositions in accordance w amount of silica such that the weight ratio of silica to silicone lies in the range from 1:100 to 3:10, preferably from 1:50 to 1:7.
Another suitable particulate antifoam component is represented by a hydrophobic silanated (most preferably trimethyl-silanated) silica having a particle size in the range from 10 nanometers to 20 nanometers and a specific surface area above 50m2/g, intimately admixed with dimethyl silicone fluid having a molecular weight in the range from about 500 to about 200,000 at a weight ratio of silicone to silanated silica of from about 1:1 to about 1:2.
Suitable particulate antifoam components are disclosed in Bartollota et al. US Patent 3,933,672.
A highly preferred particulate antifoam component is described in EP-A-0210731 and comprises a silicone antifoam compound and an organic carrier material having a melting point in the range 50"C to 85"C, wherein the organic carrier material comprises a monoester of glycerol and a fatty acid having a carbon chain containing from 12 to 20 carbon atoms. EP-A-0210721 discloses other preferred particulate antifoam components wherein the organic carrier material is a fatty acid or alcohol having a carbon chain containing from 12 to 20 carbon atoms, or a mixture thereof, with a melting point of from 45"C to 80"C.
Other highly preferred particulate antifoam components are described in European
Application 91870007.1 in the name of the Procter and Gamble Company which components comprise silicone antifoam compound, a carrier material, an organic coating material and glycerol at a weight ratio of glycerol : silicone antifoam compound of 1:2 to 3:1. European Application 91201342.0 also discloses highly preferred particulate antifoam components comprising silicone antifoam compound, a carrier material, an organic coating material and crystalline or amorphous aluminosilicate at a weight ratio of aluminosilicate : silicone antifoam compound of 1:3 to 3:1. The preferred carrier material in both of the above described highly preferred granular suds controlling agents is starch.
An exemplary particulate antifoam component for use herein is a particulate agglomerate component, made by an agglomeration process, comprising in combination
(i) from 5% to 30%, preferably from 8% to 15% by weight of the
component of silicone antifoam compound, preferably comprising in
combination polydimethyl siloxane and silica;
(ii) from 50% to 90%, preferably from 60% to 80% by weight of the
component, of carrier material, preferably starch;
(iii) from 2% to 30%, preferably from 5% to 20% by weight of the
component of agglomerate binder compound, where herein such
compound can be any compound, or mixtures thereof typically
employed as binders for agglomerates, most preferably said
agglomerate binder compound comprises a Cl6-C'8 ethoxylated alcohol
with a degree of ethoxylation of from 50 to 100; and
(iv) from 0% to 15%, preferably from 1% to 10%, by weight of C12-C22
hydrogenated fatty acid.
Particularly preferred antifoam compounds for use herein are silicone antifoam compounds defined herein as any antifoam compound including a silicone component.
Such silicone antifoam compounds also typically contain a silica component. The term "silicone" as used herein, and in general throughout the industry, encompasses a variety of relatively high molecular weight polymers containing siloxane units and hydrocarbyl group of various types.
Preferred silicone antifoam compounds are the siloxanes having the general structure:
where each R independently can be an alkyl or an aryl radical. Examples of such substituents are methyl, ethyl, propyl, isobutyl, and phenyl. Preferred polydiorganosiloxanes are polydimethylsiloxanes having trimethylsilyl endblocking units and having a viscosity at 25"C of from 5 x 10-5m2/s to 0. 1m2/s i.e. a value on n in the range 40 to 1500. These are preferred because of their ready availability and their relatively low cost.
Other suitable antifoam compounds include, for example, high molecular weight hydrocarbons such as paraffin, fatty esters (e.g. fatty acid triglycerides), fatty acid esters of monovalent alcohols, aliphatic Cl6-Cl8 ketones (e.g. stearone) N-alkylated amino triazines such as tri- to hexa-alkylmelamines or di- to tetra alkyldiamine chlortriazines formed as products of cyanuric chloride with two or three moles of a primary or secondary amine containing 1 to 24 carbon atoms, propylene oxide, and monostearyl di-alkali metal (e.g. sodium, potassium, lithium) phosphates and phosphate esters. The hydrocarbons, such as paraffin and haloparaffin, can be utilized in liquid form. The liquid hydrocarbons will be liquid at room temperature and atmospheric pressure, and will have a pour point in the range of about -40 C and about 5"C, and a minimum boiling point not less than llO"C (atmospheric pressure).
It is also known to utilize waxy hydrocarbons, preferably having a melting point below about l00 C. Hydrocarbon suds suppressors are described, for example, in
U.S. Patent 4,265,779, issued May 5, 1981 to Gandolfo et al. The hydrocarbons, thus, include aliphatic, alicyclic, aromatic, and heterocyclic saturated or unsaturated hydrocarbons having from about 12 to about 70 carbon atoms. The term "paraffin", as used in this suds supressor dicussion, is intended to include mixtures of true paraffins and cyclic hydrocarbons.
Copolymers of ethylene oxide and propylene oxide, particularly the mixed ethoxylated/propoxylated fatty alcohols with an alkyl chain length of from 10 to 16 carbon atoms, a degree of ethoxylation of from 3 to 30 and a degree of propoxylarion of from 1 to 10, are also suitable antifoam compounds for use herein also suitable for the present invention.
If a detergent composition of the present invention contains no suds suppressor as defined above then it must contain more than zero and less than 15E of a fatty soap such as a monocarboxylic fatty acids and soluble salts thereof. These materials are described in US Patent 2,954,347, issued September 27, 1960 to Wayne St. John.
The monocarboxylic fatty acids, and salts thereof, for use as anti foam agents typically have hydrocarbyl chains of 10 to about 24 carbon atoms, preferably 12 to 18 carbon atoms. Suitable salts include the alkali metal salts such as sodium, potassium, and lithium salts, and ammonium and alkanolammonium salts.
Other suitable components of a detergent composition of the present invention are as follows
Clav softening system
The detergent compositions may contain a clay softening system comprising a clay mineral compound and optionally a clay flocculating agent.
The clay mineral compound is preferably a smectite clay compound. Smectite clays are disclosed in the US Patents No.s 3,862,058, 3,948,790, 3,954,632 and 4,062,647. European Patents No.s EP-A-299,575 and EP-A-313,146 in the name of the Procter and Gamble Company describe suitable organic polymeric clay flocculating agents.
Polymeric dve transfer inhibiting agents
The detergent compositions herein may also comprise from 0.01 % to 10 %, preferably from 0.05 % to 0.5 % by weight of polymeric dye transfer inhibiting agents.
The polymeric dye transfer inhibiting agents are preferably selected from polyamine
N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrol idonepolymers or combinations thereof.
a) Polyamine N-oxide polvmers
Polyamine N-oxide polymers suitable for use herein contain units having the following structure formula
wherein P is a polymerisable unit, and
R are aliphatic, ethoxylated aliphatics, aromatic, heterocyclic or alicyclic groups or any combination thereof whereto the nitrogen of the N-O group can be attached or wherein the nitrogen of the N-O group is part of these groups.
The N-O group can be represented by the following general structures
wherein R1, R2, and R3 are aliphatic groups, aromatic, heterocyclic or alicyclic groups or combinations thereof, x or/and y or/and z is 0 or 1 and wherein the nitrogen of the N-O group can be attached or wherein the nitrogen of the N-O group forms part of these groups. The N-O group can be part of the polymerisable unit (P) or can be attached to the polymeric backbone or a combination of both.
Suitable polyamine N-oxides wherein the N-O group forms part of the polymerisable unit comprise polyamine N-oxides wherein R is selected from aliphatic, aromatic, alicyclic or heterocyclic groups. One class of said polyamine N-oxides comprises the group of polyamine N-oxides wherein the nitrogen of the N-O group forms part of the R-group. Preferred polyamine N-oxides are those wherein R is a heterocyclic group such as pyrridine, pyrrole, imidazole, pyrrolidine, piperidine, quinoline, acridine and derivatives thereof.
Other suitable polyamine N-oxides are the polyamine oxides whereto the N-O group is attached to the polymerisable unit. A preferred class of these polyamine N-oxides comprises the polyamine N-oxides having the general formula (I) wherein R is an aromatic,heterocyclic or alicyclic groups wherein the nitrogen of the N-O functional group is part of said R group. Examples of these classes are polyamine oxides wherein R is a heterocyclic compound such as pyrridine, pyrrole, imidazole and derivatives thereof.
The polyamine N-oxides can be obtained in almost any degree of polymerisation.
The degree of polymerisation is not critical provided the material has the desired water-solubility and dye-suspending power. Typically, the average molecular weight is within the range of 500 to 1000,000.
b) Copolvmers of N-vinvlpvrrolidone and N-vinvlimidazole
Suitable herein are coploymers of N-vinylimidazole and N-vinylpyrrolidone having an average molecular weight range of from 5,000 to 50,000. The preferred copolymers have a molar ratio of N-vinylimidazole to N-vinylpyrrolidone from 1 to 0.2.
c) Polyvinylpyrrolidone The detergent compositions herein may also utilize polyvinylpyrrolidone ("PVP") having an average molecular weight of from 2,500 to 400,000. Suitable polyvinylpyrrolidones are commercially vailable from ISP Corporation, New York,
NY and Montreal, Canada under the product names PVP K-15 (viscosity molecular weight of 10,000), PVP K-30 (average molecular weight of 40,000), PVP K-60 (average molecular weight of 160,000), and PVP K-90 (average molecular weight of 360,000). PVP K-15 is also available from ISP Corporation. Other suitable polyvinylpyrrolidones which are commercially available from BASF Cooperation include Sokalan HP 165 and Sokalan HP 12.
d) Polvvinvloxazol idone The detergent compositions herein may also utilize polyvinyloxazolidones as polymeric dye transfer inhibiting agents. Said polyvinyloxazolidones have an average molecular weight of from 2,500 to 400,000.
e) Polyvinylimidazole The detergent compositions herein may also utilize polyvinylimidazole as polymeric dye transfer inhibiting agent. Said polyvinylimidazoles preferably have an average molecular weight of from 2,500 to 400,000.
Optical brightener
The detergent compositions herein also optionally contain from about 0.005% to 5% by weight of certain types of hydrophilic optical brighteners.
Hydrophilic optical brighteners useful herein include those having the structural formula:
wherein R' is selected from anilino, N-2-bis-hydroxyethyl and NH-2-hydroxyethyl;
R2 is selected from N-2-bis-hydroxyethyl, N-2-hydroxyethyl-N-methylamino, morphilino, chloro and amino; and M is a salt-forming cation such as sodium or potassium.
When in the above formula, Rl is anilino, R2 is N-2-bis-hydroxyethyl and M is a cation such as sod i um, the brightener is 4,4,, -bis[(4-anilino-6-(N-2-bis-hydroxyethyl)-s-triazine-2-yl)aminoi-2,2 '-stilbenedis ulfonic acid and disodium salt. This particular brightener species is commercially marketed under the tradename Tinopal-UNPA-GX by Ciba-Geigy Corporation.
Tinopal-UNPA-GX is the preferred hydrophilic optical brightener useful in the detergent compositions herein.
When in the above formula, R1 is anilino, R2 is N-2-hydroxyethyl-N-2-methylamino and M is a cation such as sodium, the brightener is 4,4 bis((4-anilino6-(N-2-hydrnxyethyl-N-methylamino)-s-triazine-2-yl)amino]2 ,2 ' - stilbenedisulfonic acid disodium salt. This particular brightener species is commercially marketed under the tradename Tinopal SBM-GX by Ciba-Geigy
Corporation.
When in the above formula, R1 is anilino, R2 is morphilino and M is a cation such a s s o d i u m , t h e b r i g h t e n e r i s 4,4'-bis[(4-anilino-6-morphilino-s-triazine-2-yl)amino]2,2'-stilbenedisulfonic acid, sodium salt. This particular brightener species is commercially marketed under the tradename Tinopal AMS-GX by Ciba Geigy Corporation.
Cationic fabric softening agents
Cationic fabric softening agents can also be incorporated into compositions in accordance with the present invention. Suitable cationic fabric softening agents include the water insoluble tertiary amines or dilong chain amide materials as disclosed in GB-A-1 514 276 and EP-B-0 011 340.
Cationic fabric softening agents are typically incorporated at total levels of from 0.5 % to 15% by weight, normally from lS to 5% by weight.
Other optional ingredients
Other optional ingredients suitable for inclusion in the compositions of the invention include perfumes, colours and filler salts.
pH of the compositions
The present compositions preferably have a pH measured as a 1 % solution in distilled water of at least 10.0, preferably from 10.0 to 12.5, most preferably from 10.5 to 12.0.
Form of the compositions
The compositions in accordance with the invention are preferably in granular form.
The mean particle size of the components of granular compositions in accordance with the invention should preferably be such that no more that 5 % of particles are greater than 1.7mm in diameter and not more than 5% of particles are less than 0. 15mm in diameter.
The term mean particle size as defined herein is calculated by sieving a sample of the composition into a number of fractions (typically 5 fractions) on a series of Tyler sieves. The weight fractions thereby obtained are plotted against the aperture size of the sieves. The mean particle size is taken to be the aperture size through which 50% by weight of the sample would pass.
The bulk density of granular detergent compositions in accordance with the present invention preferably have a bulk density of between 400-900 g/litre. Bulk density is measured by means of a simple funnel and cup device consisting of a conical funnel moulded rigidly on a base and provided with a flap valve at its lower extremity to allow the contents of the funnel to be emptied into an axially aligned cylindrical cup disposed below the funnel. The funnel is 130 mm high and has internal diameters of 130 mm and 40 mm at its respective upper and lower extremities. It is mounted so that the lower extremity is 140 mm above the upper surface of the base. The cup has an overall height of 90 mm, an internal height of 87 mm and an internal diameter of 84 mm. Its nominal volume is 500 ml.
To carry out a measurement, the funnel is filled with powder by hand pouring, the flap valve is opened and powder allowed to overfill the cup. The filled cup is removed from the frame and excess powder removed from the cup by passing a straight edged implement eg; a knife, across its upper edge. The filled cup is then weighed and the value obtained for the weight of powder doubled to provide a bulk density in g/litre. Replicate measurements are made as required.
The compositions of the present invention optionally comprise surfactant agglomerate particles.
The surfactant system herein may preferably be present in granular compositions in the form of surfactant agglomerate particles, which may take the form of flakes, prills, marumes, noodles, ribbons, but preferably take the form of granules. The most preferred way to process the particles is by agglomerating powders (e.g.
aluminosilicate, carbonate) with high active surfactant pastes and to control the particle size of the resultant agglomerates within specified limits. Such a process involves mixing an effective amount of powder with a high active surfactant paste in one or more agglomerators such as a pan agglomerator, a Z-blade mixer or more preferably an in-line mixer such as those manufactured by Schugi (Holland) BV, 29 Chroomstraat 8211 AS, Lelystad, Netherlands, and Gebruder Lodige Maschinenbau
GmbH, D-4790 Paderborn 1, Elsenerstrasse 7-9, Postfach 2050, Germany. Most preferably a high shear mixer is used, such as a Lodige CB (Trade Name).
A high active surfactant paste comprising from 50% by weight to 95% by weight, preferably 70 sub by weight to 85 S6 by weight of surfactant is typically used. The paste may be pumped into the agglomerator at a temperature high enough to maintain a pumpable viscosity, but low enough to avoid degradation of the anionic surfactants used. An operating temperature of the paste of 50"C to 80"C is typical.
Machine laundry methods herein typically comprise treating soiled laundry with an aqueous wash solution in a washing machine having dissolved or dispensed therein an effective amount of a machine laundry detergent composition in accord with the invention. By an effective amount of the detergent composition it is meant from 40g to 300g of product dissolved or dispersed in a wash solution of volume from 5 to 65 litres, as are typical product dosages and wash solution volumes commonly employed in conventional machine laundry methods.
All % contents expressed herein are calculated by the weight of the composition content expressed as a percentage of the weight of composition.
EXAMPLE
A suitable detergent composition according to the present invention is
manufactured using techniques well known in the art and contain the following
components. Content are expressed as w/w % against total weight of the composition.
(%) (%)
Composition Produced
Detergent Composition according to the Prior
present invention Art
LAS 5.64 5.64
TAS 2.53 2.53
Non-ionic surfactant 6.00 4.00
Sulphate 12.66 22.66
It can be seen from the above that reducing the sulphate content by 10% allows 50% increase in the amount of nonionic surfactant absorbed.
Claims (5)
1. A process for the manufacture of a detergent composition comprising the addition of a non-ionic surfactant to a spray-dried blown powder wherein the spraydried blown powder has a metal sulphate content which produces a final metal sulphate content in the detergent composition of between 5 and 15 %.
2. A process according to claim 1 wherein the metal sulphate is an alkali metal sulphate.
3. A process according to claim 2 wherein the sulphate is sodium sulphate.
4. A process according to any preceding claim wherein the non-ionic surfactant has a melting point of less than 100"C.
5. A detergent composition prepared by the process of any preceding claim.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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GB9616137A GB2315768A (en) | 1996-08-01 | 1996-08-01 | Detergent compositions |
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GB9616137A GB2315768A (en) | 1996-08-01 | 1996-08-01 | Detergent compositions |
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GB9616137D0 GB9616137D0 (en) | 1996-09-11 |
GB2315768A true GB2315768A (en) | 1998-02-11 |
Family
ID=10797831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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GB9616137A Withdrawn GB2315768A (en) | 1996-08-01 | 1996-08-01 | Detergent compositions |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2345065A (en) * | 1998-12-24 | 2000-06-28 | Procter & Gamble | Cleaning compositions |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4826632A (en) * | 1986-10-20 | 1989-05-02 | Lever Brothers Company | Detergent compositions manufacturing process by spraying anionic/nonionic surfactant mix |
GB2222411A (en) * | 1988-09-01 | 1990-03-07 | Unilever Plc | Making particulate detergent compositions |
EP0425804A2 (en) * | 1989-11-02 | 1991-05-08 | Henkel KGaA | Granular additive containing nonionic surfactents for detergent and cleaning agents with improved rinsing properties |
EP0520582A1 (en) * | 1991-06-28 | 1992-12-30 | Colgate-Palmolive Company | Zeolite based spray-dried detergent compositions and process for preparing same |
US5180515A (en) * | 1989-07-27 | 1993-01-19 | The Procter & Gamble Company | Granular detergent compositions having low levels of potassium salt to provide improved solubility |
GB2281076A (en) * | 1993-07-15 | 1995-02-22 | Procter & Gamble | Granular detergent compositions |
-
1996
- 1996-08-01 GB GB9616137A patent/GB2315768A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4826632A (en) * | 1986-10-20 | 1989-05-02 | Lever Brothers Company | Detergent compositions manufacturing process by spraying anionic/nonionic surfactant mix |
GB2222411A (en) * | 1988-09-01 | 1990-03-07 | Unilever Plc | Making particulate detergent compositions |
US5180515A (en) * | 1989-07-27 | 1993-01-19 | The Procter & Gamble Company | Granular detergent compositions having low levels of potassium salt to provide improved solubility |
EP0425804A2 (en) * | 1989-11-02 | 1991-05-08 | Henkel KGaA | Granular additive containing nonionic surfactents for detergent and cleaning agents with improved rinsing properties |
EP0520582A1 (en) * | 1991-06-28 | 1992-12-30 | Colgate-Palmolive Company | Zeolite based spray-dried detergent compositions and process for preparing same |
GB2281076A (en) * | 1993-07-15 | 1995-02-22 | Procter & Gamble | Granular detergent compositions |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2345065A (en) * | 1998-12-24 | 2000-06-28 | Procter & Gamble | Cleaning compositions |
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