EP0574351A1 - Process for the after-treatment of tanned leather and furs - Google Patents
Process for the after-treatment of tanned leather and furs Download PDFInfo
- Publication number
- EP0574351A1 EP0574351A1 EP93810396A EP93810396A EP0574351A1 EP 0574351 A1 EP0574351 A1 EP 0574351A1 EP 93810396 A EP93810396 A EP 93810396A EP 93810396 A EP93810396 A EP 93810396A EP 0574351 A1 EP0574351 A1 EP 0574351A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fatty
- anhydride
- alcohol
- polymer
- dicarboxylic acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000010985 leather Substances 0.000 title claims abstract description 24
- 229920000642 polymer Polymers 0.000 claims abstract description 44
- 239000000203 mixture Substances 0.000 claims abstract description 31
- 150000008064 anhydrides Chemical class 0.000 claims abstract description 28
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 22
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 22
- 229930195729 fatty acid Natural products 0.000 claims abstract description 22
- 239000000194 fatty acid Substances 0.000 claims abstract description 22
- 238000005886 esterification reaction Methods 0.000 claims abstract description 19
- 230000032050 esterification Effects 0.000 claims abstract description 18
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 150000001412 amines Chemical class 0.000 claims abstract description 15
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 14
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000009435 amidation Effects 0.000 claims abstract description 13
- 238000007112 amidation reaction Methods 0.000 claims abstract description 13
- 229920001519 homopolymer Polymers 0.000 claims abstract description 12
- 230000007062 hydrolysis Effects 0.000 claims abstract description 12
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 12
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 12
- -1 secondary amine compound Chemical class 0.000 claims abstract description 12
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 7
- 238000006116 polymerization reaction Methods 0.000 claims description 23
- BXWNKGSJHAJOGX-UHFFFAOYSA-N n-hexadecyl alcohol Natural products CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 claims description 13
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 12
- 229960000541 cetyl alcohol Drugs 0.000 claims description 12
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims description 11
- 229940055577 oleyl alcohol Drugs 0.000 claims description 11
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 claims description 11
- 125000000913 palmityl 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])C([H])([H])C([H])([H])[H] 0.000 claims description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 10
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- 239000000178 monomer Substances 0.000 claims description 4
- 239000003505 polymerization initiator Substances 0.000 claims description 3
- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 claims description 2
- NMVGNHRDGKUPIT-UHFFFAOYSA-N 3-methylideneoxetane-2,4-dione Chemical compound C=C1C(=O)OC1=O NMVGNHRDGKUPIT-UHFFFAOYSA-N 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 239000000243 solution Substances 0.000 description 12
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 8
- 239000008096 xylene Substances 0.000 description 8
- 150000004665 fatty acids Chemical class 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 5
- FZNCGRZWXLXZSZ-CIQUZCHMSA-N Voglibose Chemical compound OCC(CO)N[C@H]1C[C@](O)(CO)[C@@H](O)[C@H](O)[C@H]1O FZNCGRZWXLXZSZ-CIQUZCHMSA-N 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- 239000004435 Oxo alcohol Substances 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 229940043237 diethanolamine Drugs 0.000 description 2
- NOPFSRXAKWQILS-UHFFFAOYSA-N docosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCO NOPFSRXAKWQILS-UHFFFAOYSA-N 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- IRHTZOCLLONTOC-UHFFFAOYSA-N hexacosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCO IRHTZOCLLONTOC-UHFFFAOYSA-N 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- BTFJIXJJCSYFAL-UHFFFAOYSA-N icosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCO BTFJIXJJCSYFAL-UHFFFAOYSA-N 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
- REZQBEBOWJAQKS-UHFFFAOYSA-N triacontan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCO REZQBEBOWJAQKS-UHFFFAOYSA-N 0.000 description 2
- JSPLKZUTYZBBKA-UHFFFAOYSA-N trioxidane Chemical compound OOO JSPLKZUTYZBBKA-UHFFFAOYSA-N 0.000 description 2
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1 -dodecene Natural products CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 1
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 description 1
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 1
- PAOHAQSLJSMLAT-UHFFFAOYSA-N 1-butylperoxybutane Chemical compound CCCCOOCCCC PAOHAQSLJSMLAT-UHFFFAOYSA-N 0.000 description 1
- XUJLWPFSUCHPQL-UHFFFAOYSA-N 11-methyldodecan-1-ol Chemical compound CC(C)CCCCCCCCCCO XUJLWPFSUCHPQL-UHFFFAOYSA-N 0.000 description 1
- ZFFMLCVRJBZUDZ-UHFFFAOYSA-N 2,3-dimethylbutane Chemical group CC(C)C(C)C ZFFMLCVRJBZUDZ-UHFFFAOYSA-N 0.000 description 1
- JJRDRFZYKKFYMO-UHFFFAOYSA-N 2-methyl-2-(2-methylbutan-2-ylperoxy)butane Chemical compound CCC(C)(C)OOC(C)(C)CC JJRDRFZYKKFYMO-UHFFFAOYSA-N 0.000 description 1
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- SPVVMXMTSODFPU-UHFFFAOYSA-N 3-methyl-n-(3-methylbutyl)butan-1-amine Chemical compound CC(C)CCNCCC(C)C SPVVMXMTSODFPU-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- SYWDWCWQXBUCOP-UHFFFAOYSA-N benzene;ethene Chemical compound C=C.C1=CC=CC=C1 SYWDWCWQXBUCOP-UHFFFAOYSA-N 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical group 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- BSVQJWUUZCXSOL-UHFFFAOYSA-N cyclohexylsulfonyl ethaneperoxoate Chemical compound CC(=O)OOS(=O)(=O)C1CCCCC1 BSVQJWUUZCXSOL-UHFFFAOYSA-N 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 239000012969 di-tertiary-butyl peroxide Substances 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 1
- 229940043276 diisopropanolamine Drugs 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 1
- 229960000735 docosanol Drugs 0.000 description 1
- ILRSCQWREDREME-UHFFFAOYSA-N dodecanamide Chemical compound CCCCCCCCCCCC(N)=O ILRSCQWREDREME-UHFFFAOYSA-N 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- 229940031098 ethanolamine Drugs 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 235000021323 fish oil Nutrition 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- BMFVGAAISNGQNM-UHFFFAOYSA-N isopentylamine Chemical group CC(C)CCN BMFVGAAISNGQNM-UHFFFAOYSA-N 0.000 description 1
- 229940102253 isopropanolamine Drugs 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229940043348 myristyl alcohol Drugs 0.000 description 1
- XGZOMURMPLSSKQ-UHFFFAOYSA-N n,n-bis(2-hydroxyethyl)octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)N(CCO)CCO XGZOMURMPLSSKQ-UHFFFAOYSA-N 0.000 description 1
- QYZFTMMPKCOTAN-UHFFFAOYSA-N n-[2-(2-hydroxyethylamino)ethyl]-2-[[1-[2-(2-hydroxyethylamino)ethylamino]-2-methyl-1-oxopropan-2-yl]diazenyl]-2-methylpropanamide Chemical group OCCNCCNC(=O)C(C)(C)N=NC(C)(C)C(=O)NCCNCCO QYZFTMMPKCOTAN-UHFFFAOYSA-N 0.000 description 1
- GQEZCXVZFLOKMC-UHFFFAOYSA-N n-alpha-hexadecene Natural products CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 1
- LYFALQJXGVLXBL-UHFFFAOYSA-N n-cycloheptylcycloheptanamine Chemical compound C1CCCCCC1NC1CCCCCC1 LYFALQJXGVLXBL-UHFFFAOYSA-N 0.000 description 1
- AFFLGGQVNFXPEV-UHFFFAOYSA-N n-decene Natural products CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- JACMPVXHEARCBO-UHFFFAOYSA-N n-pentylpentan-1-amine Chemical group CCCCCNCCCCC JACMPVXHEARCBO-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 1
- DPBLXKKOBLCELK-UHFFFAOYSA-N pentan-1-amine Chemical group CCCCCN DPBLXKKOBLCELK-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012673 precipitation polymerization Methods 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012966 redox initiator Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229940012831 stearyl alcohol Drugs 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- KQYLUTYUZIVHND-UHFFFAOYSA-N tert-butyl 2,2-dimethyloctaneperoxoate Chemical group CCCCCCC(C)(C)C(=O)OOC(C)(C)C KQYLUTYUZIVHND-UHFFFAOYSA-N 0.000 description 1
- GSECCTDWEGTEBD-UHFFFAOYSA-N tert-butylperoxycyclohexane Chemical compound CC(C)(C)OOC1CCCCC1 GSECCTDWEGTEBD-UHFFFAOYSA-N 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 229940087291 tridecyl alcohol Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
Definitions
- the present invention relates to a process for the aftertreatment of tanned leather and furs, the agent used for this process, a process for producing this agent and the leather or fur material aftertreated by the present process.
- the polymers according to the invention are new.
- the invention also relates to the new polymers, in particular within the scope of the preferred embodiment mentioned above.
- monethylenically unsaturated polymerizable dicarboxylic anhydride there are e.g. Maleic anhydride, citraconic anhydride, methylene malonic anhydride and mixtures of these compounds. Of the anhydrides mentioned, maleic anhydride is preferably used.
- Suitable C1-C30 alcohols as component (b1) are e.g. Methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, tert-butanol, pentanol, cyclohexanol, n-hexanol, onanthal alcohol, n-octanol, 2-ethyl hexanol, pelargon alcohol, decanol, dodecanol, myristyl alcohol, cetyl alcohol, stearyl alcohol, Arachidyl alcohol, behenyl alcohol, ceryl alcohol, cerotyl alcohol, myricyl alcohol, C9-C11 oxo alcohol, tridecyl alcohol, isotridecanol or mixtures of linear primary alcohols (®Alfole) with 8 to 18 carbon atoms.
- Some representatives of these alfoles are Alfol (8-10), Alfol (9-11
- a cetyl / oleyl alcohol mixture is preferably used as component (b 1).
- Preferred compounds for the optional partial amidation with amines are ammonia, mono- or di-C1-C5-alkylamine, phenyl-C1-C5-alkylamine, mono- or di-C5-C7-cycloalkylamine or morpholine.
- C1-C5-alkylamines used are monomethyl, dimethyl, monoethyl, diethyl, mono-n-propyl, di-n-propyl, monoisopropyl, diisopropyl, mono-n-butyl, di -n-butyl, mono-sec-butyl, di-sec-butyl, mono-tert. Butyl, di-tert.
- Ammonia and morpholine are very particularly preferred.
- Suitable unsaturated or saturated C8-C22 fatty acids which can be considered as component ( ⁇ ) are e.g. Caprylic, capric, lauric, myristic, palmitic, stearic, arachic, behenic, oleic, linoleic, linolenic, arachidonic or coconut fatty acids or the decene, dodecene, teradecene, hexadecene - or ricinoleic acid.
- An example of the adduct of a fatty acid with an alkylene oxide is the adduct of 2 to 15 moles of ethylene oxide and 1 mole of a C8-C22 fatty acid.
- Reaction products of fatty amines and ethylene oxide or propylene oxide such as e.g. Fatty acid alkanolamides with 8 to 22 carbon atoms in the fatty acid residue and 2 to 18 carbon atoms in the alkanol residue.
- Fatty acid alkanolamides with 8 to 22 carbon atoms in the fatty acid residue and 2 to 18 carbon atoms in the alkanol residue.
- This is e.g. to fatty acid-alkanolamine reaction products which are prepared from C8-C22 fatty acids, preferably C8-C18 fatty acids and C2-C6-alkanolamines such as ethanolamine, diethanolamine, isopropanolamine or diisopropanolamine, diethanolamine being preferred.
- C8-C18 fatty acid diethanolamides are particularly preferred.
- Preferred examples of such reaction products are the coconut fatty acid diethanolamide and the lauric acid or stearic acid diethanolamide.
- Preferred compounds which can be considered as component ( ⁇ ) are C8-C22 fatty acids.
- Aqueous bases for partial neutralization and hydrolysis are, in particular, aqueous solutions of NaOH or KOH (sodium hydroxide solution, potassium hydroxide solution), but also aqueous solutions of amines, such as e.g. Ammonia.
- polymers are used in which e.g. 5 to 40, preferably 25 to 35%, based on the amounts of monomers, are esterified and / or amidated.
- the process according to the invention is suitable for the aftertreatment of all customary tanned leather hides, in particular hides tanned with mineral tanning agents, such as chromium III salts. These are usually deacidified before the aftertreatment. They can be colored before the aftertreatment. However, coloring can also take place only after the aftertreatment carried out according to the invention.
- mineral tanning agents such as chromium III salts.
- the tanned and optionally colored skins are expediently mixed with the aqueous polymer solution in an aqueous liquor, which can be obtained by diluting the polymer solution with water, at pH values of 4 to 10, preferably 5 to 8 and temperatures of 20 ° to 50 °, preferably 30 to 50 ° C for a period of 0.1 to 5, preferably 0.2 to 2 hours, aftertreated.
- This aftertreatment is carried out, for example, by milling in a barrel.
- the required amount of polymer solution, based on the shaved weight of the leather or the wet weight of the fur skins is 0.1 to 30, preferably 1 to 20,% by weight.
- the fleet length i.e. the percentage weight ratio of the aftertreatment liquor to the goods, based on the shaved weight of the leather or the wet weight of the fur skins, is usually 10 to 1000, preferably 30 to 150%, for fur skins 50 to 500%.
- the pH of the liquor is adjusted to a pH of 3 to 5, preferably 3.5 to 4 by adding acids, preferably organic acids such as formic acid, and the leather is finished in the customary manner .
- the leather or furs aftertreated by the process according to the invention are distinguished by a good fullness and an exceptionally smooth feel.
- the polymerization of the ethylenically unsaturated anhydrides is carried out according to known batch or continuous processes, such as bulk, suspension, precipitation and solvent polymerization.
- the monomeric ethylenically unsaturated dicarboxylic anhydrides serving as starting compounds are preferably used as uniform compounds in technical purity. Mixtures of different dicarboxylic acid anhydrides can also be used, so that copolymers are formed. The homopolymers are preferred.
- the polymerization of the anhydrides is e.g. at temperatures of 80 to 300, preferably 120 to 200 ° C, the lowest polymerization temperature to be selected is preferably about at least 20 ° C above the glass transition temperature of the polymer formed.
- the polymerization conditions are chosen. Polymerization at a higher temperature results in polymers with a low molecular weight, while polymers with a higher molecular weight are formed at low polymerization temperatures.
- the conditions for the composition according to the invention are selected such that polymers with molar masses of 500 to 30,000 g per mol, preferably 500 to 2000 g per mol, are formed.
- a simple method for the preparation of the polymers is precipitation polymerization.
- This method uses solvents in which the monomers are soluble and the polymer formed is insoluble and precipitates.
- solvents are e.g. aromatic compounds, preferably toluene, xylene, benzene or cumene and their mixtures with one another.
- the preferred method is solvent polymerization. It is carried out in solvents in which both the monomers and the polymers formed are soluble. All solvents which meet these conditions and are inert to the acid anhydrides are suitable for this, such as Acetone, methyl ethyl ketone, diethyl ketone, methyl isobutyl ketone, ethyl acetate, butyl acetate and aliphatic hydrocarbons such as n-octane, isooctane, cyclohexane or methylcyclohexane.
- polymerization is carried out with the aid of compounds which decompose into free radicals, such as, for example, peroxides, hydroperoxides, redox initiators and azo compounds.
- Suitable polymerization initiators are, for example, acetylcyclohexanesulfonyl peroxide, diacetyl peroxidicarbonate, di-2-ethylhexyl peroxidicarbonate, tertiary butyl perneodecanoate, 2,2'-azobis (4-methoxy-2,4-dimethylvalerionitrile), tertiary-butylpermalobitrile (2,2'-bis-azalobitrate), (tertiary-butylperoxy) cyclohexane, tertiary-butylperoxyisopropyl carbonate, tertiary-butylperacetate, di-tertiary-butylperoxide, di-tertiaryamyl
- the reaction is carried out in an inert atmosphere, preferably in the absence of oxygen, in particular in an inert gas stream such as Nitrogen or argon.
- an inert gas stream such as Nitrogen or argon.
- the usual equipment is used for all polymerization reactions, e.g. Autoclaves and kettles equipped with, for example, anchor, blade, impeller or multi-stage impulse countercurrent stirrers.
- the polymers obtainable in this way are then partially esterified and hydrolyzed in a next reaction step, so that the anhydride groups are converted into carboxyl groups. It is also possible to hydrolyze the polymers containing anhydride groups first, so that all of the anhydride groups are in the form of carboxyl groups, and then to carry out the esterification by known methods. However, the procedure is preferred in which the carboxylic anhydride groups of the polymer are first partially esterified.
- the partial esterification can in the presence of solvents which are inert to the anhydride groups and dissolve or swell both the starting materials and the esterified copolymers, e.g. Toluene, xylene, ethylene benzene, aliphatic hydrocarbons and ketones such as acetone and methyl ketone can be carried out.
- solvents which are inert to the anhydride groups and dissolve or swell both the starting materials and the esterified copolymers, e.g. Toluene, xylene, ethylene benzene, aliphatic hydrocarbons and ketones such as acetone and methyl ketone can be carried out.
- the proportions of the reactants are chosen so that only a partial esterification of the anhydride groups occurs.
- Based on the hydrolyzed partially esterified polymer 5 to 75, preferably 5 to 50% of the carboxyl groups are esterified.
- the esterification itself is usually carried out at higher temperatures,
- esterification reaction is complete after about 0.5 to 20, preferably 1 to 10 hours.
- solvents are removed from the reaction mixture, e.g. by distillation, if appropriate under reduced pressure, and the remaining partially esterified polymers are dissolved in water with the addition of alkalis.
- alkalis are e.g. Sodium hydroxide solution, potassium hydroxide solution, ammonia, amines and alkanolamines.
- the pH of the aqueous, partially esterified polymer solution thus obtained is 4 to 10, preferably 6 to 8.
- Example 1 240 g of maleic anhydride and 240 g of technical xylene are placed in a polymerization reactor provided with stirrer, cooler, nitrogen inlet and outlet and with metering devices and heated to about 140 ° C. until boiling. 80 g of di-tert are added to the low-boiling solution within 2 hours. Butyl peroxide and the reaction mixture is heated for 2 hours after addition of the initiator with stirring and reflux, 2 phases forming. The polymer thus produced with a molar mass of approximately 4000 g per mol is then partially esterified with 230 g of a cetyl / oleyl alcohol mixture in the presence of 1 g of p-toluenesulfonic acid at 130 ° C. within 2 hours with stirring. The remaining xylene is distilled off under reduced pressure.
- the reaction mixture is cooled to a temperature of 100 ° C and, by simultaneously adding 384 ml of water and 180 g of 30% aqueous sodium hydroxide solution, processed into a stable, yellowish emulsion which has a solids content of approx. 55% and a pH of 6 , 8 has. Approx. 45 mol% of the total carboxyl groups resulting from the anhydride groups have been esterified and approximately 55 mol% have been neutralized.
- Example 2 560 g of the polymer prepared in Example 1 in xylene are mixed with 200 g of a cetyl / oleyl alcohol mixture and 200 g of an adduct of 6 moles of ethylene oxide with 1 mole of a C16 / C18 oxo alcohol in the presence of 2 g of p-toluenesulfonic acid within 3 Partially esterified for hours at 130 ° C. The remaining xylene is distilled off under reduced pressure. The reaction mixture is cooled to a temperature of 100 ° C. and processed into a low-viscosity emulsion by simultaneously adding 800 ml of water and 106 g of 30% strength aqueous sodium hydroxide solution. The pale yellowish emulsion thus obtained has a solids content of approximately 40% and a pH of 6.8.
- Example 3 560 g of the polymer prepared in Example 1 in xylene are partially esterified with 192 g of a cetyl / oleyl alcohol mixture in the presence of 1 g of p-toluenesulfonic acid within 2 hours with stirring. The remaining xylene is distilled off under reduced pressure. 161 g of morpholine are then added over the course of half an hour and the reaction mixture is heated to a temperature of 130 ° C. within 2 hours with stirring. Thereby, further, still existing anhydride groups of the copolymer converted into monoamide groups. The reaction mixture is cooled to 80 ° C.
- EXAMPLE 5 If the procedure is as described in Example 1, but instead of 230 g of the cetyl / oleyl alcohol mixture, 1505 g of the cetyl / oleyl alcohol mixture and 92 g of laurylamine are used, a dispersion which is viscous at room temperature and has a solids content of about 55% is obtained. .
- EXAMPLE 6 If the procedure is as described in Example 1, but instead of 230 g of the cetyl / oleyl alcohol mixture, 250 g of the adduct of 8 mol of ethylene oxide and 1 mol of stearic acid are used, a dispersion which is viscous at room temperature and has a solids content of approx. 52 is obtained %.
- EXAMPLE 7 If the procedure is as described in Example 1, but instead of 230 g of the cetyl / oleyl alcohol mixture, 240 g of the adduct of 4 moles of ethylene oxide and 1 mole of oleylamine are used, a dispersion which is viscous at room temperature and has a solids content of about 50 is obtained %.
- EXAMPLE 8 If the procedure is as described in Example 1, but 230 g of the adduct of 6 mol of ethylene oxide and 1 mol of lauric acid amide are used instead of 230 g of the cetyl / oleyl alcohol mixture, a dispersion which is viscous at room temperature and has a solids content of approximately 49 is obtained %.
- Example 9 Chrome-tanned, to a pH value of 5.2 deacidified leather had a shaved thickness of 1.8 mm is in a conventional manner with 1%, based on the weight of the leather, the dye of the formula colored. The leather is then aftertreated with 8% of the product produced according to Example 1, based on the shaved weight. The total fleet length is 100%. Then it is adjusted to a pH of 3.8 with formic acid. The leather is then washed, mechanically stretched and dried.
- the leather obtained is very soft, supple to the touch and shows a brilliant and level coloring.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Nachbehandeln von gegerbtem Leder und Pelzen, das für dieses Verfahren eingesetzte Mittel, ein Verfahren zur Herstellung dieses Mittels sowie das nach dem vorliegenden Verfahren nachbehandelte Leder- oder Pelzmaterial.The present invention relates to a process for the aftertreatment of tanned leather and furs, the agent used for this process, a process for producing this agent and the leather or fur material aftertreated by the present process.
Das vorliegende Verfahren zum Nachbehandeln von gegerbtem Leder und Pelzen ist dadurch gekennzeichnet, dass man das Leder oder die Pelze mit einem Polymerisat nachbehandelt, das erhältlich ist durch
- (a) Polymerisation eines monoethylenisch ungesättigten Dicarbonsäureanhydrids mit 4 bis 8 Kohlenstoffatomen oder Mischungen dieser Dicarbonsäureanhydride und
- (b) anschliessende partielle Veresterung und/oder Amidierung dieses Polymeren mit einem
- (b₁) C₁-C₃₀Alkohol und/oder einer primären oder sekundären Aminverbindung und/oder
- (b₂) dem Umsetzungssprodukt aus einem
- (α)
- ungesättigten oder gesättigten C₁-C₃₀-Fettalkohol, einer C₈-C₂₂-Fettsäure, einem C₈-C₂₂- Fettamin oder einem C₈-C₂₂- Fettamid und
- (β)
- Ethylenoxid und/oder Propylenoxid
und gegebenenfalls anschliessende Hydrolyse der Anhydridgruppen der Homopolymerisate mit wässrigen Basen.The present process for the aftertreatment of tanned leather and furs is characterized in that the leather or the furs is aftertreated with a polymer which is obtainable from
- (a) Polymerization of a monoethylenically unsaturated dicarboxylic acid anhydride with 4 to 8 carbon atoms or mixtures of these dicarboxylic acid anhydrides and
- (b) subsequent partial esterification and / or amidation of this polymer with a
- (b₁) C₁-C₃₀ alcohol and / or a primary or secondary amine compound and / or
- (b₂) the reaction product from one
- (α)
- unsaturated or saturated C₁-C₃₀ fatty alcohol, a C₈-C₂₂ fatty acid, a C₈-C₂₂- fatty amine or a C₈-C₂₂- fatty amide and
- (β)
- Ethylene oxide and / or propylene oxide
and optionally subsequent hydrolysis of the anhydride groups of the homopolymers with aqueous bases.
In einer bevorzugten Ausführungsform des erfindungsgemässen Verfahrens werden Polymerisate eingesetzt, die erhältlich sind durch
- (a) Polymerisation eines monoethylenisch ungesättigten Dicarbonsäureanhydrids mit 4 bis 8 Kohlenstoffatomen oder Mischungen dieser Dicarbonsäureanhydride und
- (b) anschliessende partielle Veresterung und/oder Amidierung dieses Polymeren mit dem Umsetzungsprodukt aus
- (α)
- einem ungesättigten oder gesättigten C₁-C₃₀-Fettalkohol, einer C₈-C₂₂-Fettsäure, einem C₈-C₂₂- Fettamin oder C₈-C₂₂- Fettamid und
- (β)
- Ethylenoxid und/oder Propylenoxid
und anschliessende Hydrolyse der Anhydridgruppen der Homopolymerisate mit wässrigen Basen.In a preferred embodiment of the process according to the invention, polymers are used which are obtainable from
- (a) Polymerization of a monoethylenically unsaturated dicarboxylic acid anhydride with 4 to 8 carbon atoms or mixtures of these dicarboxylic acid anhydrides and
- (b) subsequent partial esterification and / or amidation of this polymer with the reaction product
- (α)
- an unsaturated or saturated C₁-C₃₀ fatty alcohol, a C₈-C₂₂ fatty acid, a C₈-C₂₂- fatty amine or C₈-C₂₂- fatty amide and
- (β)
- Ethylene oxide and / or propylene oxide
and subsequent hydrolysis of the anhydride groups of the homopolymers with aqueous bases.
Die erfindungsgemässen Polymerisate sind neu. Die Erfindung betrifft auch die neuen Polymerisate, insbesondere im Umfang der vorstehend genannten bevorzugten Ausführungsform.The polymers according to the invention are new. The invention also relates to the new polymers, in particular within the scope of the preferred embodiment mentioned above.
Als monethylenisch ungesättigtes polymerisierbares Dicarbonsäureanhydrid kommen z.B. Maleinsäureanhydrid, Citraconsäureanhydrid, Methylenmalonsäureanhydrid und Mischungen dieser Verbindungen untereinender in Betracht. Von den genannten Anhydriden wird vorzugsweise Maleinsäureanhydrid verwendet.As the monethylenically unsaturated polymerizable dicarboxylic anhydride there are e.g. Maleic anhydride, citraconic anhydride, methylene malonic anhydride and mixtures of these compounds. Of the anhydrides mentioned, maleic anhydride is preferably used.
Geeignete C₁-C₃₀-Alkohole als Komponente (b₁) sind z.B. Methanol, Ethanol, n-Propanol, Isopropanol, n-Butanol, Isobutanol, tert.Butanol, Pentanol, Cyclohexanol, n-Hexanol, Önanthalkohol, n-Octanol, 2-Ethylhexanol, Pelargonalkohol, Decanol, Dodecanol, Myristylalkohol, Cetylalkohol, Stearylalkohol, Arachidylalkohol, Behenylalkohol, Cerylalkohol, Cerotylalkohol, Myricylalkohol, C₉-C₁₁-Oxoalkohol, Tridecylalkohol, Isotridecanol oder Gemische aus linearen primären Alkoholen (®Alfole) mit 8 bis 18 Kohlenstoffatomen. Einige Vertreter dieser Alfole sind Alfol (8-10), Alfol (9-11), Alfol (10-14), Alfol (12-13) oder Alfol (16-18).Suitable C₁-C₃₀ alcohols as component (b₁) are e.g. Methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, tert-butanol, pentanol, cyclohexanol, n-hexanol, onanthal alcohol, n-octanol, 2-ethyl hexanol, pelargon alcohol, decanol, dodecanol, myristyl alcohol, cetyl alcohol, stearyl alcohol, Arachidyl alcohol, behenyl alcohol, ceryl alcohol, cerotyl alcohol, myricyl alcohol, C₉-C₁₁ oxo alcohol, tridecyl alcohol, isotridecanol or mixtures of linear primary alcohols (®Alfole) with 8 to 18 carbon atoms. Some representatives of these alfoles are Alfol (8-10), Alfol (9-11), Alfol (10-14), Alfol (12-13) or Alfol (16-18).
Vorzugsweise wird als Komponente (b₁) ein Cetyl/Oleyl-Alkoholgemisch vewendet.A cetyl / oleyl alcohol mixture is preferably used as component (b 1).
Bevorzugte Verbindungen für die fakultative Partialamidierung mit Aminen sind Ammoniak, Mono- oder Di-C₁-C₅-Alkylamin, Phenyl-C₁-C₅-Alkylamin, Mono- oder Di-C₅-C₇-Cycloalkylamin oder Morpholin.Preferred compounds for the optional partial amidation with amines are ammonia, mono- or di-C₁-C₅-alkylamine, phenyl-C₁-C₅-alkylamine, mono- or di-C₅-C₇-cycloalkylamine or morpholine.
Beispiele für die verwendeten C₁-C₅-Alkylamine sind Monomethyl-, Dimethyl-, Monoethyl-, Diethyl-, Mono-n-propyl-, Di-n-propyl-, Monoisopropyl-, Diisopropyl-, Mono-n-Butyl-, Di-n-Butyl-, Mono-sek.-Butyl-, Di-sek.-Butyl-, Mono-tert. Butyl-, Di-tert. Butyl-, Monoamyl-, Diamyl-, Monoisoamyl- oder Diisoamylamin sowie Monocyclopentyl-, Di-cyclopentyl-, Monocyclohexyl-, Dicyclohexyl-, Monocycloheptyl- oder Dicycloheptylamin als Vertreter für C₅-C₇-Cycloalkylaminverbindungen.Examples of the C₁-C₅-alkylamines used are monomethyl, dimethyl, monoethyl, diethyl, mono-n-propyl, di-n-propyl, monoisopropyl, diisopropyl, mono-n-butyl, di -n-butyl, mono-sec-butyl, di-sec-butyl, mono-tert. Butyl, di-tert. Butyl, monoamyl, diamyl, monoisoamyl or diisoamylamine and monocyclopentyl, di-cyclopentyl, monocyclohexyl, dicyclohexyl, monocycloheptyl or dicycloheptylamine as representatives for C₅-C₇-cycloalkylamine compounds.
Ganz besonders bevorzugt sind Ammoniak und Morpholin.Ammonia and morpholine are very particularly preferred.
Geeignete ungesättigte oder gesättigte C₈-C₂₂-Fettsäuren, die als Komponente (α) in Betracht kommen, sind z.B. Capryl-, Caprin-, Laurin-, Myristin-, Palmitin-, Stearin-, Arachin-, Behen-, Olein-, Linol-, Linolen-, Arachidon- oder Kokosfettsäure bzw. die Decen-, Dodecen-, Teradecen-, Hexadecen- oder Ricinolsäure.Suitable unsaturated or saturated C₈-C₂₂ fatty acids which can be considered as component (α) are e.g. Caprylic, capric, lauric, myristic, palmitic, stearic, arachic, behenic, oleic, linoleic, linolenic, arachidonic or coconut fatty acids or the decene, dodecene, teradecene, hexadecene - or ricinoleic acid.
Als Beispiel für das Anlagerungsprodukt einer Fettsäure an ein Alkylenoxid sei das Addukt aus 2 bis 15 Mol Ethylenoxid und 1 Mol einer C₈-C₂₂-Fettsäure genannt.An example of the adduct of a fatty acid with an alkylene oxide is the adduct of 2 to 15 moles of ethylene oxide and 1 mole of a C₈-C₂₂ fatty acid.
Bevorzugt sind auch Umsetzungsprodukte aus Fettaminen und Ethylenoxid oder Propylenoxid, wie z.B. Fettsäurealkanolamide mit 8 bis 22 Kohlenstoffatomen im Fettsäurerest und 2 bis 18 Kohlenstoffatomen im Alkanolrest. Hierbei handelt es sich z.B. um Fettsäure-Alkanolamin-Umsetzungsprodukte, welche aus C₈-C₂₂-Fettsäuren, vorzugsweise C₈-C₁₈-Fettsäuren und C₂-C₆-Alkanolaminen wie Ethanolamin, Diethanolamin, Isopropanolamin oder Diisopropanolamin hergestellt werden, wobei Diethanolamin bevorzugt ist. Besonders bevorzugt sind C₈-C₁₈-Fettsäurediethanolamide. Bevorzugte Beispiele derartiger Umsetzungsprodukte sind das Kokosfettsäurediethanolamid, sowie das Laurinsäure- oder Stearinsäurediethanolamid.Reaction products of fatty amines and ethylene oxide or propylene oxide, such as e.g. Fatty acid alkanolamides with 8 to 22 carbon atoms in the fatty acid residue and 2 to 18 carbon atoms in the alkanol residue. This is e.g. to fatty acid-alkanolamine reaction products which are prepared from C₈-C₂₂ fatty acids, preferably C₈-C₁₈ fatty acids and C₂-C₆-alkanolamines such as ethanolamine, diethanolamine, isopropanolamine or diisopropanolamine, diethanolamine being preferred. C₈-C₁₈ fatty acid diethanolamides are particularly preferred. Preferred examples of such reaction products are the coconut fatty acid diethanolamide and the lauric acid or stearic acid diethanolamide.
Bevorzugte Verbindungen, die als Komponente (α) in Betracht kommen, sind C₈-C₂₂-Fettsäuren.Preferred compounds which can be considered as component (α) are C₈-C₂₂ fatty acids.
Wässrige Basen für die Teilneutralisation und Hydrolyse sind insbesondere wässrige Lösungen von NaOH oder KOH (Natronlauge, Kalilauge), aber auch wässrige Lösungen von Aminen, wie z.B. Ammoniak.Aqueous bases for partial neutralization and hydrolysis are, in particular, aqueous solutions of NaOH or KOH (sodium hydroxide solution, potassium hydroxide solution), but also aqueous solutions of amines, such as e.g. Ammonia.
Für das erfindungsgemässe Verfahren werden Poylmerisate verwendet, bei denen z.B. 5 bis 40, vorzugsweise 25 bis 35 %, bezogen auf die Mengen an Monomeren, verestert und/oder amidiert sind.For the process according to the invention, polymers are used in which e.g. 5 to 40, preferably 25 to 35%, based on the amounts of monomers, are esterified and / or amidated.
Das erfindungsgemässe Verfahren eignet sich zur Nachbehandlung von allen üblichen gegerbten Lederhäuten, insbesondere mit Mineralgerbstoffen, wie Chrom-III-Salzen gegerbten Häuten. Diese werden üblicherweise vor der Nachbehandlung entsäuert. Sie können bereits vor der Nachbehandlung gefärbt sein. Eine Färbung kann jedoch auch erst nach der erfindungsgemäss vorgenommenen Nachbehandlung erfolgen.The process according to the invention is suitable for the aftertreatment of all customary tanned leather hides, in particular hides tanned with mineral tanning agents, such as chromium III salts. These are usually deacidified before the aftertreatment. They can be colored before the aftertreatment. However, coloring can also take place only after the aftertreatment carried out according to the invention.
Die gegerbten und gegebenenfalls gefärbten Häute werden mit der wässrigen Polymerlösung zweckmässigerweise in wässriger Flotte, die durch Verdünnen der Polymerlösung mit Wasser erhältlich ist, bei pH-Werten von 4 bis 10, vorzugsweise 5 bis 8 und Temperaturen von 20° bis 50°, vorzugsweise 30 bis 50°C wahrend eines Zeitraums von 0,1 bis 5, vorzugsweise 0,2 bis 2 Stunden, nachbehandelt. Diese Nachbehandlung erfolgt beispielsweise durch Walken in einem Fass. Die benötigte Menge an Polymerlösung beträgt, bezogen auf das Falzgewicht des Leders oder das Nassgewicht der Pelzfelle, 0,1 bis 30, vorzugsweise 1 bis 20 Gew.%. Die Flottenlänge, d.h. das prozentuale Gewichtsverhältnis der Nachbehandlungsflotte zur Ware, bezogen auf das Falzgewicht des Leders bzw. das Nassgewicht der Pelzfelle, beträgt üblicherweise 10 bis 1000, vorzugsweise 30 bis 150%, bei Pelzfellen 50 bis 500 %.The tanned and optionally colored skins are expediently mixed with the aqueous polymer solution in an aqueous liquor, which can be obtained by diluting the polymer solution with water, at pH values of 4 to 10, preferably 5 to 8 and temperatures of 20 ° to 50 °, preferably 30 to 50 ° C for a period of 0.1 to 5, preferably 0.2 to 2 hours, aftertreated. This aftertreatment is carried out, for example, by milling in a barrel. The required amount of polymer solution, based on the shaved weight of the leather or the wet weight of the fur skins, is 0.1 to 30, preferably 1 to 20,% by weight. The fleet length, i.e. the percentage weight ratio of the aftertreatment liquor to the goods, based on the shaved weight of the leather or the wet weight of the fur skins, is usually 10 to 1000, preferably 30 to 150%, for fur skins 50 to 500%.
Nach der Nachbehandlung mit der oben beschriebenen wässrigen Flotte wird der pH-Wert der Flotte durch Zusatz von Säuren, vorzugsweise organischer Säuren wie Ameisensäure, auf einen pH-Wert von 3 bis 5, vorzugsweise 3,5 bis 4 eingestellt und das Leder wie üblich fertiggestellt.After the aftertreatment with the aqueous liquor described above, the pH of the liquor is adjusted to a pH of 3 to 5, preferably 3.5 to 4 by adding acids, preferably organic acids such as formic acid, and the leather is finished in the customary manner .
Die nach dem erfindungsgemässen Verfahren nachbehandelten Leder oder Pelze zeichnen sich durch eine gute Fülle und einen ausserordentlich geschmeidigen Griff aus.The leather or furs aftertreated by the process according to the invention are distinguished by a good fullness and an exceptionally smooth feel.
Die Erfindung betrifft auch ein wässriges Nachbehandlungsmittel, erhältlich durch
- (a) Polymerisation eines monoethylenisch ungesättigten Dicarbonsäureanhydrids mit 4 bis 8 Kohlenstoffatomen oder Mischungen dieser Dicarbonsäureanhydride und
- (b) anschliessende partielle Veresterung und/oder Amidierung dieses Polymeren mit einem
- (b₁) C₁-C₃₀Alkohol und/oder einer primären oder sekundären Aminverbindung und/oder
- (b₂) dem Umsetzungssprodukt aus einem
- (α)
- ungesättigten oder gesättigten C₁-C₃₀-Fettalkohol, einer C₈-C₂₂-Fettsäure, einem C₈-C₂₂-Fettamin oder einem C₈-C₂₂-Fettamid und
- (β)
- Ethylenoxid und/oder Propylenoxid
und gegebenenfalls anschliessende Hydrolyse der Anhydridgruppen der Homopolymerisate mit wässrigen Basen.The invention also relates to an aqueous aftertreatment agent obtainable by
- (a) Polymerization of a monoethylenically unsaturated dicarboxylic acid anhydride with 4 to 8 carbon atoms or mixtures of these dicarboxylic acid anhydrides and
- (b) subsequent partial esterification and / or amidation of this polymer with a
- (b₁) C₁-C₃₀ alcohol and / or a primary or secondary amine compound and / or
- (b₂) the reaction product from one
- (α)
- unsaturated or saturated C₁-C₃₀ fatty alcohol, a C₈-C₂₂ fatty acid, a C₈-C₂₂ fatty amine or a C₈-C₂₂ fatty amide and
- (β)
- Ethylene oxide and / or propylene oxide
and optionally subsequent hydrolysis of the anhydride groups of the homopolymers with aqueous bases.
Bevorzugte wässrige Nachbehandlungsmittel sind erhältlich durch
- (a) Polymerisation eines monoethylenisch ungesättigten Dicarbonsäureanhydrids mit 4 bis 8 Kohlenstoffatomen oder Mischungen dieser Dicarbonsäureanhydride und
- (b) anschliessende partielle Veresterung und/oder Amidierung dieses Polymeren mit dem Umsetzungsprodukt aus
- (α)
- einem ungesättigten oder gesättigten C₁-C₃₀-Fettalkohol, einer C₈-C₂₂-Fettsäure, einem C₈-C₂₂-Fettamin oder C₈-C₂₂-Fettamid und
- (β)
- Ethylenoxid und/oder Propylenoxid
und anschliessende Hydrolyse der Anhydridgruppen der Homopolymerisate mit wässrigen Basen.Preferred aqueous aftertreatment agents are obtainable from
- (a) Polymerization of a monoethylenically unsaturated dicarboxylic acid anhydride with 4 to 8 carbon atoms or mixtures of these dicarboxylic acid anhydrides and
- (b) subsequent partial esterification and / or amidation of this polymer with the reaction product
- (α)
- an unsaturated or saturated C₁-C₃₀ fatty alcohol, a C₈-C₂₂ fatty acid, a C₈-C₂₂ fatty amine or C₈-C₂₂ fatty amide and
- (β)
- Ethylene oxide and / or propylene oxide
and subsequent hydrolysis of the anhydride groups of the homopolymers with aqueous bases.
Ein weiterer Gegenstand der vorliegenden Erfindung sind Polymerisate, die erhältlich sind durch
- (a) Polymerisation eines monoethylenisch ungesättigten Dicarbonsäureanhydrids mit 4 bis 8 Kohlenstoffatomen oder Mischungen dieser Dicarbonsäureanhydride und
- (b) anschliessende partielle Veresterung und/oder Amidierung dieses Polymeren mit einem
- (b₁) C₁-C₃₀Alkohol und/oder einer primären oder sekundären Aminverbindung und/oder
- (b₂) dem Umsetzungssprodukt aus einem
- (α)
- ungesättigten oder gesättigten C₁-C₃₀-Fettalkohol, einer C₈-C₂₂- Fettsäure, einem C₈-C₂₂- Fettamin oder einem C₈-C₂₂- Fettamid und
- (β)
- Ethylenoxid und/oder Propylenoxid
und gegebenenfalls anschliessende Hydrolyse der Anhydridgruppen der Homopolymerisate mit wässrigen Basen.The present invention furthermore relates to polymers which are obtainable by
- (a) Polymerization of a monoethylenically unsaturated dicarboxylic acid anhydride with 4 to 8 carbon atoms or mixtures of these dicarboxylic acid anhydrides and
- (b) subsequent partial esterification and / or amidation of this polymer with a
- (b₁) C₁-C₃₀ alcohol and / or a primary or secondary amine compound and / or
- (b₂) the reaction product from one
- (α)
- unsaturated or saturated C₁-C₃₀ fatty alcohol, a C₈-C₂₂- fatty acid, a C₈-C₂₂- fatty amine or a C₈-C₂₂- fatty amide and
- (β)
- Ethylene oxide and / or propylene oxide
and optionally subsequent hydrolysis of the anhydride groups of the homopolymers with aqueous bases.
Die Polymerisation der ethylenisch ungesättigten Anhydride wird nach an sich bekannten diskontinuierlichen oder kontinuierlichen Verfahren durchgeführt, wie Masse-, Suspensions-, Fällungs- und Lösemittelpolymerisation.The polymerization of the ethylenically unsaturated anhydrides is carried out according to known batch or continuous processes, such as bulk, suspension, precipitation and solvent polymerization.
Die als Ausgangsverbindungen dienenden monomeren ethylenisch ungesättigten Dicarbonsäureanhydride werden vorzugsweise als einheitliche Verbindungen in technischer Reinheit eingesetzt. Es können aber auch Mischungen verschiedener Dicarbonsäureanhydride verwendet werden, so dass Mischpolymerisate gebildet werden. Die Homopolymerisate sind bevorzugt.The monomeric ethylenically unsaturated dicarboxylic anhydrides serving as starting compounds are preferably used as uniform compounds in technical purity. Mixtures of different dicarboxylic acid anhydrides can also be used, so that copolymers are formed. The homopolymers are preferred.
Die Polymerisation der Anhydride wird z.B. bei Temperaturen von 80 bis 300, vorzugsweise 120 bis 200°C durchgeführt, wobei die niedrigste zu wählende Polymerisationstemperatur vorzugsweise etwa mindestens 20°C über der Glastemperatur des gebildeten Polymers liegt. Je nach Molekulargewicht, das die Polymerisate haben sollen, werden die Polymerisationsbedingungen gewählt. Polymerisation bei höherer Temperatur ergibt Polymerisate mit niedrigem Molekulargewicht, wahrend bei niedrigen Polymerisationstemperaturen Polymerisate mit höherem Molekulargewicht entstehen. Für die erfindungsgemässe Zusammensetzung werden die Bedingungen so gewählt, dass Polymerisate mit Molmassen von 500 bis 30,000 g pro Mol, vorzugsweise 500 bis 2000 g pro Mol entstehen.The polymerization of the anhydrides is e.g. at temperatures of 80 to 300, preferably 120 to 200 ° C, the lowest polymerization temperature to be selected is preferably about at least 20 ° C above the glass transition temperature of the polymer formed. Depending on the molecular weight that the polymers should have, the polymerization conditions are chosen. Polymerization at a higher temperature results in polymers with a low molecular weight, while polymers with a higher molecular weight are formed at low polymerization temperatures. The conditions for the composition according to the invention are selected such that polymers with molar masses of 500 to 30,000 g per mol, preferably 500 to 2000 g per mol, are formed.
Eine einfache Methode zur Herstellung der Polymerisate ist die Fällungspolymerisation. Bei diesem Verfahren werden Lösungsmittel eingesetzt, in denen die Monomeren löslich sind und das gebildete Polymer unlöslich ist und ausfällt. Solche Lösemittel sind z.B. aromatische Verbindungen, vorzugsweise Toluol, Xylol, Benzol oder Cumol und deren Mischungen untereinander.A simple method for the preparation of the polymers is precipitation polymerization. This method uses solvents in which the monomers are soluble and the polymer formed is insoluble and precipitates. Such solvents are e.g. aromatic compounds, preferably toluene, xylene, benzene or cumene and their mixtures with one another.
Die bevorzugte Methode ist die Lösungsmittelpolymerisation. Sie wird in Lösungsmitteln durchgeführt, in denen sowohl die Monomeren als auch die gebildeten Polymerisate löslich sind. Es sind hierfür alle Lösungsmittel geeignet, die diese Bedingungen erfüllen und gegenüber den Säureanhydriden inert sind, wie z.B. Aceton, Methylethylketon, Diethylketon, Methylisobutylketon, Ethylacetat, Butylacetat sowie aliphatische Kohlenwasserstoffe wie n-Oktan, Isooktan, Cyclohexan oder Methylcyclohexan.The preferred method is solvent polymerization. It is carried out in solvents in which both the monomers and the polymers formed are soluble. All solvents which meet these conditions and are inert to the acid anhydrides are suitable for this, such as Acetone, methyl ethyl ketone, diethyl ketone, methyl isobutyl ketone, ethyl acetate, butyl acetate and aliphatic hydrocarbons such as n-octane, isooctane, cyclohexane or methylcyclohexane.
Die Polymerisation wird bei allen Verfahren mit Hilfe von in Radikale zerfallende Verbindungen, wie z.B. Peroxide, Hydroperoxide, Redoxinitiatoren und Azoverbindungen durchgeführt. Geeignete Polymerisationsinitiatoren sind beispielsweise Acetylcyclohexansulfonylperoxid, Diacetylperoxidicarbonat, Di-2-ethylhexylperoxidicarbonat, Tertiärbutylperneodecanoat, 2,2'-Azobis(4-methoxy-2,4-dimethylvalerionitril), Tertiär-butylpermaleinat, 2,2'-Azobis(isobutyronitril), Bis-(tertiär-butylperoxi)cyclohexan, Tertiär-butylperoxiisopropylcarbonat, Tertiär-butylperacetat, Di-tertiär-butylperoxid, Ditertiäramylperoxid, Cumolhydroperoxid und Tertiär-butylhydroperoxid. Die Initiatoren können allein oder in Mischung untereinander eingesetzt werden. Die Polymerisationsinitiatoren werden dabei vorzugsweise in Mengen von 5 bis 40%, bezogen auf die jeweils eingesetzte Menge an monomerem Anhydrid, eingesetzt.In all processes, the polymerization is carried out with the aid of compounds which decompose into free radicals, such as, for example, peroxides, hydroperoxides, redox initiators and azo compounds. Suitable polymerization initiators are, for example, acetylcyclohexanesulfonyl peroxide, diacetyl peroxidicarbonate, di-2-ethylhexyl peroxidicarbonate, tertiary butyl perneodecanoate, 2,2'-azobis (4-methoxy-2,4-dimethylvalerionitrile), tertiary-butylpermalobitrile (2,2'-bis-azalobitrate), (tertiary-butylperoxy) cyclohexane, tertiary-butylperoxyisopropyl carbonate, tertiary-butylperacetate, di-tertiary-butylperoxide, di-tertiaryamylperoxide, cumene hydroperoxide and tertiary butylhydroperoxide. The initiators can be used alone or as a mixture with one another. The polymerization initiators are preferably used in amounts of 5 to 40%, based on the amount used in each case of monomeric anhydride.
Bei allen genannten Polymerisationsverfahren wird in einer reaktionsinerten Atmosphäre, vorzugsweise unter Ausschluss von Sauerstoff gearbeitet, insbesondere in einem Inertgasstrom wie z.B. Stickstoff oder Argon. Für alle Polymerisationsreaktionen werden die üblichen Apparaturen verwendet, z.B. Autoklaven und Kessel, die beispielsweise mit Anker-, Blatt-, Impeller- oder Mehrstufenimpuls-Gegenstrom-Rührern ausgestattet sind.In all of the polymerization processes mentioned, the reaction is carried out in an inert atmosphere, preferably in the absence of oxygen, in particular in an inert gas stream such as Nitrogen or argon. The usual equipment is used for all polymerization reactions, e.g. Autoclaves and kettles equipped with, for example, anchor, blade, impeller or multi-stage impulse countercurrent stirrers.
Die so erhältlichen Polymerisate werden anschliessend in einem nächsten Reaktionsschritt partiell verestert und hydrolysiert, so dass die Anhydridgruppen in Carboxylgruppen umgewandelt werden. Es ist auch möglich, die Anhydridgruppen enthaltenden Polymerisate zunächst zu hydrolysieren, so dass sämtliche Anhydridgruppen als Carboxylgruppen vorliegen und dann die Veresterung nach bekannten Methoden durchzuführen. Bevorzugt ist jedoch die Arbeitsweise, bei der man zunächst die Carbonsäureanhydridgruppen des Polymerisats partiell verestert.The polymers obtainable in this way are then partially esterified and hydrolyzed in a next reaction step, so that the anhydride groups are converted into carboxyl groups. It is also possible to hydrolyze the polymers containing anhydride groups first, so that all of the anhydride groups are in the form of carboxyl groups, and then to carry out the esterification by known methods. However, the procedure is preferred in which the carboxylic anhydride groups of the polymer are first partially esterified.
Die partielle Veresterung kann in Gegenwart von Lösungsmitteln, die gegenüber den Anhydridgruppen inert sind und sowohl die Ausgangsstoffe als auch die veresterten Copolymerisate lösen oder quellen, z.B. Toluol, Xylol, Ethylenbenzol, aliphatische Kohlenwasserstoffe und Ketone, wie Aceton und Methylketon, durchgeführt werden. Die Mengenverhältnisse der Reaktanden werden dabei so gewählt, dass nur eine partielle Veresterung der Anhydridgruppen eintritt. Bezogen auf das hydrolysierte partiell veresterte Polymerisat sind 5 bis 75, vorzugsweise 5 bis 50 % der Carboxylgruppen verestert. Die Veresterung selbst wird in der Regel bei höheren Temperaturen, z.B. 50° bis 200°, vorzugsweise 80 bis 150°C in Gegenwart der üblichen Veresterungskatalysatoren vorgenommen. Besonders geeignet ist p-Toluolsulfonsäure. Die Veresterungsreaktion ist nach etwa 0,5 bis 20, vorzugsweise 1 bis 10 Stunden beendet. Nach der partiellen Veresterung werden die Lösungsmittel aus dem Reaktionsgemisch entfernt, z.B. durch Abdestillieren, gegebenenfalls unter vermindertem Druck, und die verbleibenden partiell veresterten Polymerisate werden in Wasser unter Zusatz von Alkalien gelöst. Hierbei werden die noch in dem Polymerisat vorhandenen Anhydridgruppen hydrolysiert. Geeignete Alkalien sind z.B. Natronlauge, Kalilauge, Ammoniak, Amine und Alkanolamine.The partial esterification can in the presence of solvents which are inert to the anhydride groups and dissolve or swell both the starting materials and the esterified copolymers, e.g. Toluene, xylene, ethylene benzene, aliphatic hydrocarbons and ketones such as acetone and methyl ketone can be carried out. The proportions of the reactants are chosen so that only a partial esterification of the anhydride groups occurs. Based on the hydrolyzed partially esterified polymer, 5 to 75, preferably 5 to 50% of the carboxyl groups are esterified. The esterification itself is usually carried out at higher temperatures, e.g. 50 ° to 200 °, preferably 80 to 150 ° C in the presence of the usual esterification catalysts. P-Toluenesulfonic acid is particularly suitable. The esterification reaction is complete after about 0.5 to 20, preferably 1 to 10 hours. After the partial esterification, the solvents are removed from the reaction mixture, e.g. by distillation, if appropriate under reduced pressure, and the remaining partially esterified polymers are dissolved in water with the addition of alkalis. The anhydride groups still present in the polymer are hydrolyzed. Suitable alkalis are e.g. Sodium hydroxide solution, potassium hydroxide solution, ammonia, amines and alkanolamines.
Der pH-Wert der so erhaltenen, wässrigen, partiell veresterten Polymerlösung beträgt 4 bis 10, vorzugsweise 6 bis 8.The pH of the aqueous, partially esterified polymer solution thus obtained is 4 to 10, preferably 6 to 8.
Die nachfolgenden Beispiele dienen zur Veranschaulichung der Erfindung. Die Prozentangaben beziehen sich dabei, wenn nicht anders angegeben, auf das Gewicht.The following examples serve to illustrate the invention. Unless otherwise stated, the percentages relate to the weight.
Beispiel 1: In einem mit Rührer, Kühler, Stickstoffein- und -auslass sowie mit Dosiervorrichtungen versehenen Polymerisationsreaktor werden 240 g Maleinsäureanhydrid und 240 g technisches Xylol vorgelegt und auf ca. 140°C bis zum Sieden erhitzt. Zu der schwach siedenden Lösung gibt man innerhalb von 2 Stunden 80 g Di-tert. Butylperoxid und erhitzt das Reaktionsgemisch nach Zugabe des Initiators noch 2 Stunden unter Rühren und Rückfluss, wobei sich 2 Phasen bilden. Das so hergestellte Polymerisat mit einer Molmasse von ca. 4000 g pro Mol wird dann mit 230 g eines Cetyl/Oleylalkoholgemisches in Gegenwart von 1 g p-Toluolsulfonsäure bei 130°C innerhalb von 2 Stunden unter Rühren partiell verestert. Das restliche Xylol wird dabei unter vermindertem Druck abdestilliert. Example 1: 240 g of maleic anhydride and 240 g of technical xylene are placed in a polymerization reactor provided with stirrer, cooler, nitrogen inlet and outlet and with metering devices and heated to about 140 ° C. until boiling. 80 g of di-tert are added to the low-boiling solution within 2 hours. Butyl peroxide and the reaction mixture is heated for 2 hours after addition of the initiator with stirring and reflux, 2 phases forming. The polymer thus produced with a molar mass of approximately 4000 g per mol is then partially esterified with 230 g of a cetyl / oleyl alcohol mixture in the presence of 1 g of p-toluenesulfonic acid at 130 ° C. within 2 hours with stirring. The remaining xylene is distilled off under reduced pressure.
Das Reaktionsgemisch wird auf eine Temperatur von 100°C abgekühlt und durch gleichzeitige Zugabe von 384 ml Wasser und 180 g 30%iger wässriger Natronlauge zu einer stabilen, gelblichen Emulsion verarbeitet, die einen Feststoffgehalt von ca. 55% und einen pH-Wert von 6,8 aufweist. Ca. 45 Mol % der insgesamt aus den Anhydridgruppen entstandenen Carboxylgruppen sind verestert worden und ca. 55 Mol % sind neutralisiert worden.The reaction mixture is cooled to a temperature of 100 ° C and, by simultaneously adding 384 ml of water and 180 g of 30% aqueous sodium hydroxide solution, processed into a stable, yellowish emulsion which has a solids content of approx. 55% and a pH of 6 , 8 has. Approx. 45 mol% of the total carboxyl groups resulting from the anhydride groups have been esterified and approximately 55 mol% have been neutralized.
Beispiel 2: 560 g des in Beispiel 1 hergestellten Polymerisates in Xylol werden mit 200 g eines Cetyl/Oleylalkoholgemisches und 200 g eines Anlagerungsproduktes von 6 Mol Ethylenoxid an 1 Mol eines C₁₆/C₁₈-Oxoalkohols in Gegenwart von 2 g p-Toluolsulfonsäure innerhalb von 3 Stunden bei 130°C partiell verestert. Das restliche Xylol wird dabei unter vermindertem Druck abdestilliert. Das Reaktionsgemisch wird auf eine Temperatur von 100°C abgekühlt und durch gleichzeitige Zugabe von 800 ml Wasser und 106 g 30%iger wässriger Natronlauge zu einer niedrigviskosen Emulsion verarbeitet. Die so erhaltene schwach gelbliche Emulsion hat einen Feststoffgehalt von ca. 40% und einen pH-Wert von 6,8. Example 2: 560 g of the polymer prepared in Example 1 in xylene are mixed with 200 g of a cetyl / oleyl alcohol mixture and 200 g of an adduct of 6 moles of ethylene oxide with 1 mole of a C₁₆ / C₁₈ oxo alcohol in the presence of 2 g of p-toluenesulfonic acid within 3 Partially esterified for hours at 130 ° C. The remaining xylene is distilled off under reduced pressure. The reaction mixture is cooled to a temperature of 100 ° C. and processed into a low-viscosity emulsion by simultaneously adding 800 ml of water and 106 g of 30% strength aqueous sodium hydroxide solution. The pale yellowish emulsion thus obtained has a solids content of approximately 40% and a pH of 6.8.
Beispiel 3: 560 g des im Beispiel 1 hergestellten Polymerisates in Xylol werden mit 192 g eines Cetyl/Oleylalkoholgemisch in Anwesenheit von 1 g p-Toluolsulfonsäure innerhalb von 2 Stunden unter Rühren partiell verestert. Das restliche Xylol wird dabei unter vermindertem Druck abdestilliert. Man fügt dann 161 g Morpholin innerhalb von einer halben Stunde zu und erhitzt das Reaktionsgemisch unter Rühren innerhalb von 2 Stunden auf eine Temperatur von 130°C. Dabei werden weitere, noch vorhandene Anhydridgruppen des Copolymerisats in Monoamidgruppen umgewandelt. Das Reaktionsgemisch wird auf 80°C abgekühlt und durch gleichzeitige Zugabe von 257 ml Wasser und 115 g 30 %iger wässriger Natronlauge zu einer wässrigen Lösung verarbeitet. Es entsteht dabei eine hellbraune, niedrigviskose Lösung mit einem Trockengehalt von ca. 60%. Der pH-Wert dieser Lösung beträgt 7,0. Example 3: 560 g of the polymer prepared in Example 1 in xylene are partially esterified with 192 g of a cetyl / oleyl alcohol mixture in the presence of 1 g of p-toluenesulfonic acid within 2 hours with stirring. The remaining xylene is distilled off under reduced pressure. 161 g of morpholine are then added over the course of half an hour and the reaction mixture is heated to a temperature of 130 ° C. within 2 hours with stirring. Thereby, further, still existing anhydride groups of the copolymer converted into monoamide groups. The reaction mixture is cooled to 80 ° C. and processed into an aqueous solution by the simultaneous addition of 257 ml of water and 115 g of 30% strength aqueous sodium hydroxide solution. The result is a light brown, low-viscosity solution with a dry content of approx. 60%. The pH of this solution is 7.0.
Beispiel 4: Arbeitet man wie im Beispiel 1 beschrieben, verwendet jedoch anstelle von 230 g des Cetyl-/Oleylalkoholgemisches 115 g Octanol, so erhält man eine bei Raumtemperatur viskose Dispersion mit einem Feststoffgehalt von ca. 45 %.EXAMPLE 4 If the procedure is as described in Example 1, but 115 g of octanol are used instead of 230 g of the cetyl / oleyl alcohol mixture, a dispersion which is viscous at room temperature and has a solids content of approximately 45% is obtained.
Beispiel 5: Arbeitet man wie im Beispiel 1 beschrieben, verwendet jedoch anstelle von 230 g des Cetyl-/Oleylalkoholgemisches 1505 g des Cetyl-/Oleylalkoholgemisches und 92 g Laurylamin, so erhält man eine bei Raumtemperatur viskose Dispersion mit einem Feststoffgehalt von ca. 55 %.EXAMPLE 5 If the procedure is as described in Example 1, but instead of 230 g of the cetyl / oleyl alcohol mixture, 1505 g of the cetyl / oleyl alcohol mixture and 92 g of laurylamine are used, a dispersion which is viscous at room temperature and has a solids content of about 55% is obtained. .
Beispiel 6: Arbeitet man wie im Beispiel 1 beschrieben, verwendet jedoch anstelle von 230 g des Cetyl-/Oleylalkoholgemisches 250 g des Anlagerungsproduktes von 8 Mol Ethylenoxid an 1 Mol Stearinsäure, so erhält man eine bei Raumtemperatur viskose Dispersion mit einem Feststoffgehalt von ca. 52 %.EXAMPLE 6 If the procedure is as described in Example 1, but instead of 230 g of the cetyl / oleyl alcohol mixture, 250 g of the adduct of 8 mol of ethylene oxide and 1 mol of stearic acid are used, a dispersion which is viscous at room temperature and has a solids content of approx. 52 is obtained %.
Beispiel 7: Arbeitet man wie im Beispiel 1 beschrieben, verwendet jedoch anstelle von 230 g des Cetyl-/Oleylalkoholgemisches 240 g des Anlagerungsproduktes von 4 Mol Ethylenoxid an 1 Mol Oleylamin, so erhält man eine bei Raumtemperatur viskose Dispersion mit einem Feststoffgehalt von ca. 50 %.EXAMPLE 7 If the procedure is as described in Example 1, but instead of 230 g of the cetyl / oleyl alcohol mixture, 240 g of the adduct of 4 moles of ethylene oxide and 1 mole of oleylamine are used, a dispersion which is viscous at room temperature and has a solids content of about 50 is obtained %.
Beispiel 8: Arbeitet man wie im Beispiel 1 beschrieben, verwendet jedoch anstelle von 230 g des Cetyl-/Oleylalkoholgemisches 230 g des Anlagerungsproduktes von 6 Mol Ethylenoxid an 1 Mol Laurinsäureamid, so erhält man eine bei Raumtemperatur viskose Dispersion mit einem Feststoffgehalt von ca. 49 %.EXAMPLE 8 If the procedure is as described in Example 1, but 230 g of the adduct of 6 mol of ethylene oxide and 1 mol of lauric acid amide are used instead of 230 g of the cetyl / oleyl alcohol mixture, a dispersion which is viscous at room temperature and has a solids content of approximately 49 is obtained %.
Beispiel 9: Chromgegerbtes, auf einen pH-Wert von 5,2 entsäuertes Rindsleder mit einer Falzstärke von 1,8 mm wird auf übliche Weise mit 1 %, bezogen auf das Gewicht des Leders, des Farbstoffes der Formel
gefärbt. Anschliessend wird das Leder mit 8% des gemäss Beispiel 1 hergestellten Produktes, bezogen auf das Falzgewicht, nachbehandelt. Die Gesamtflottenlänge beträgt 100%. Danach wird es mit Ameisensäure auf einen pH-Wert von 3,8 eingestellt. Anschliessend wird das Leder gewaschen, mechanisch ausgereckt und getrocknet. Example 9: Chrome-tanned, to a pH value of 5.2 deacidified leather had a shaved thickness of 1.8 mm is in a conventional manner with 1%, based on the weight of the leather, the dye of the formula
colored. The leather is then aftertreated with 8% of the product produced according to Example 1, based on the shaved weight. The total fleet length is 100%. Then it is adjusted to a pH of 3.8 with formic acid. The leather is then washed, mechanically stretched and dried.
Das erhaltene Leder ist sehr weich, im Griff geschmeidig und zeigt eine brillante und egale Färbung.The leather obtained is very soft, supple to the touch and shows a brilliant and level coloring.
Bei der Prüfung des Foggingverhaltens nach DIN 75201, Verfahren B (gravimetrische Prüfung), zeigt das so nachbehandelte Leder einen geringeren Foggingniederschlag als ein mit einem üblichen Fettungsmittel (Derivat von Fischöl) nachbehandeltes Leder.When testing the fogging behavior according to DIN 75201, method B (gravimetric test), the leather treated in this way shows a lower fogging precipitation than a leather treated with a conventional fatliquor (derivative of fish oil).
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1836/92 | 1992-06-09 | ||
CH183692 | 1992-06-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0574351A1 true EP0574351A1 (en) | 1993-12-15 |
EP0574351B1 EP0574351B1 (en) | 1996-08-21 |
Family
ID=4219736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93810396A Expired - Lifetime EP0574351B1 (en) | 1992-06-09 | 1993-06-01 | Process for the after-treatment of tanned leather and furs |
Country Status (6)
Country | Link |
---|---|
US (1) | US5558675A (en) |
EP (1) | EP0574351B1 (en) |
AR (1) | AR248430A1 (en) |
DE (1) | DE59303477D1 (en) |
ES (1) | ES2090936T3 (en) |
MX (1) | MX9303386A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995022628A1 (en) * | 1994-02-18 | 1995-08-24 | Henkel Kommanditgesellschaft Auf Aktien | New leather greasing agents and their use |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19636494C2 (en) * | 1996-09-09 | 2000-11-16 | Stockhausen Chem Fab Gmbh | Low-monomer, amine-free polymers, processes for their preparation and their use in the production of low-fogging leather |
US6091995A (en) * | 1996-11-08 | 2000-07-18 | Surx, Inc. | Devices, methods, and systems for shrinking tissues |
DE19942681B4 (en) * | 1999-09-07 | 2006-04-27 | Dr. Th. Böhme KG Chem. Fabrik GmbH & Co | Copolymer for the treatment of leather and fur skins |
IT201700007426A1 (en) | 2017-01-24 | 2018-07-24 | Re Al Color S R L | TANNING AGENTS AND TANNING PROCESS |
PL3597778T3 (en) | 2018-07-18 | 2021-10-25 | Re. Al. Color S.r.l. | Chrome-free tanning agents and tanning process |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2629748B1 (en) * | 1976-07-02 | 1977-12-15 | Zschimmer & Schwarz Chemische | Use of copolymers from monoolefins and maleic anhydride for filling and greasing leather and fur skins |
EP0412389A1 (en) * | 1989-08-08 | 1991-02-13 | BASF Aktiengesellschaft | Use of copolymerisates based on long chained olefines and ethylenic unsaturated dicarbonic acid anhydrides for waterproofing of leather and fur pelts |
EP0418661A1 (en) * | 1989-09-16 | 1991-03-27 | BASF Aktiengesellschaft | Use of copolymerisates based on long chain unsaturated esters and ethylenically unsaturated carbonic acids for hydrophobing of leather and fur pelts |
EP0428481A1 (en) * | 1989-11-13 | 1991-05-22 | Ciba-Geigy Ag | Method of treating leather and furs |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1411063A (en) * | 1973-02-14 | 1975-10-22 | Ciba Geigy Uk Ltd | Polymerisation process |
US4018702A (en) * | 1974-03-11 | 1977-04-19 | Calgon Corporation | Corrosion inhibition with amine adducts of maleic anhydride polymers |
US4196271A (en) * | 1975-12-24 | 1980-04-01 | Toagosei Chemical Industry Co., Ltd. | Adhesive composition |
US4086177A (en) * | 1976-02-09 | 1978-04-25 | Shell Oil Company | Activated bleaching process and compositions therefor |
GB2164339A (en) * | 1984-09-11 | 1986-03-19 | Ciba Geigy Ag | Polymaleic anhydride derivatives |
CA1321851C (en) * | 1988-01-11 | 1993-08-31 | Kathleen Anne Hughes | Process for preparing functionalized polymeric compositions |
DE3926168A1 (en) * | 1989-08-08 | 1991-02-14 | Basf Ag | USE OF COPOLYMERISATS BASED ON LONG-CHAIN ALKYLVINYL ETHERS AND ETHYLENICALLY UNSATURATED DICARBONIC ACID ANHYDRIDES FOR THE HYDROPHOBICATION OF LEATHER AND FUR SKINS |
-
1993
- 1993-06-01 ES ES93810396T patent/ES2090936T3/en not_active Expired - Lifetime
- 1993-06-01 EP EP93810396A patent/EP0574351B1/en not_active Expired - Lifetime
- 1993-06-01 DE DE59303477T patent/DE59303477D1/en not_active Expired - Fee Related
- 1993-06-07 MX MX9303386A patent/MX9303386A/en not_active IP Right Cessation
- 1993-06-07 AR AR93325114A patent/AR248430A1/en active
-
1994
- 1994-09-06 US US08/300,875 patent/US5558675A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2629748B1 (en) * | 1976-07-02 | 1977-12-15 | Zschimmer & Schwarz Chemische | Use of copolymers from monoolefins and maleic anhydride for filling and greasing leather and fur skins |
EP0412389A1 (en) * | 1989-08-08 | 1991-02-13 | BASF Aktiengesellschaft | Use of copolymerisates based on long chained olefines and ethylenic unsaturated dicarbonic acid anhydrides for waterproofing of leather and fur pelts |
EP0418661A1 (en) * | 1989-09-16 | 1991-03-27 | BASF Aktiengesellschaft | Use of copolymerisates based on long chain unsaturated esters and ethylenically unsaturated carbonic acids for hydrophobing of leather and fur pelts |
EP0428481A1 (en) * | 1989-11-13 | 1991-05-22 | Ciba-Geigy Ag | Method of treating leather and furs |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995022628A1 (en) * | 1994-02-18 | 1995-08-24 | Henkel Kommanditgesellschaft Auf Aktien | New leather greasing agents and their use |
US5728313A (en) * | 1994-02-18 | 1998-03-17 | Henkel Corporation | Leather oiling compositions and their use |
Also Published As
Publication number | Publication date |
---|---|
MX9303386A (en) | 1994-01-31 |
DE59303477D1 (en) | 1996-09-26 |
EP0574351B1 (en) | 1996-08-21 |
AR248430A1 (en) | 1995-08-18 |
US5558675A (en) | 1996-09-24 |
ES2090936T3 (en) | 1996-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0418661B1 (en) | Use of copolymerisates based on long chain unsaturated esters and ethylenically unsaturated carbonic acids for hydrophobing of leather and fur pelts | |
DE2757329C2 (en) | Process for the production of polymers of acrylic acid or methacrylic acid | |
DE1044409B (en) | Process for the preparation of water-sensitive partial esters and partial amides of a polymer | |
EP0486608B1 (en) | Use of copolymerizates based on long-chain alkyl vinyl ethers and ethylenically unsaturated dicarboxylic acid anhydrides for waterproofing leather and furs | |
DE3926167A1 (en) | USE OF COPOLYMERISATS BASED ON LONG-CHAIN OLEFINS AND ETHYLENICALLY UNSATURATED DICARBONIC ACID ANHYDRIDES FOR THE HYDROPHOBICATION OF LEATHER AND FUR SKINS | |
DE1269337B (en) | Stable aqueous dispersions of self-crosslinking copolymers | |
EP0682044A1 (en) | Copolymers of ethylenically unsaturated dicarboxylic acid anhydrides, long-chaim olefines and fluoro-olefines | |
DE102007039785A1 (en) | Nonionic water-soluble additives based on allyl and vinyl ether | |
EP0648846A2 (en) | Retans with softening and hydrophobic action | |
EP0574351B1 (en) | Process for the after-treatment of tanned leather and furs | |
DE906516C (en) | Process for the production of copolymers | |
DE1745563C3 (en) | Process for the preparation of aqueous polymer dispersions | |
EP0658172B1 (en) | Alkoxy group-containing copolymers and their use for retanning leather | |
EP0234416B1 (en) | Derivatives of citric acid as emulsifiers in emulsion polymerizsation | |
EP0342497A2 (en) | Fuel for spark ignition engines | |
EP0265818B1 (en) | Process for the preparation of N,N-disubstituted beta-aminoacids and their use in water-proofing leather and skins | |
DE4214011C1 (en) | COPOLYMERISATE | |
EP0130336B1 (en) | Aqueous inks for flexo- and gravure printing | |
EP0678053B1 (en) | Use of partially esterified copolymers containing carboxyl groups as dispersants, and aqueous pigment suspensions containing such dispersants | |
EP1651781A1 (en) | Method for the production of leather by using polymers | |
DE3114360C2 (en) | ||
DE2437639C2 (en) | Polymers containing N-dialkylurea groups | |
DE2520412A1 (en) | MANUFACTURE OF SOL-CHLOROPRENE POLYMERS | |
DE3149201C2 (en) | Emulsifier for emulsion polymerization and use of the emulsifier | |
DE3717961C2 (en) | Process for the preparation of mixtures of N, N-disubstituted ß-aminopropionic acid derivatives, certain mixtures of N-alkyl-N (2-carboxyethyl) sulfonamides and N-alkyl-N (2-carboxyethyl) ureas and use of the compounds mentioned |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE ES FR GB IT LI |
|
17P | Request for examination filed |
Effective date: 19940513 |
|
17Q | First examination report despatched |
Effective date: 19951012 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE ES FR GB IT LI |
|
ET | Fr: translation filed | ||
ITF | It: translation for a ep patent filed | ||
REF | Corresponds to: |
Ref document number: 59303477 Country of ref document: DE Date of ref document: 19960926 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2090936 Country of ref document: ES Kind code of ref document: T3 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19961001 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PUE Owner name: CIBA-GEIGY AG TRANSFER- CIBA SC HOLDING AG |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2090936 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Free format text: CIBA SC HOLDING AG TRANSFER- CIBA SPECIALTY CHEMICALS HOLDING INC. |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CD |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19980424 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19980506 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19980512 Year of fee payment: 6 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 19980623 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990601 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990602 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990630 Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19990630 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990630 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19990601 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20010503 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050601 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20060630 Year of fee payment: 14 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080101 |