EP0648846B1 - Weichmachende und hydrophobierende Nachgerbstoffe - Google Patents
Weichmachende und hydrophobierende Nachgerbstoffe Download PDFInfo
- Publication number
- EP0648846B1 EP0648846B1 EP94115468A EP94115468A EP0648846B1 EP 0648846 B1 EP0648846 B1 EP 0648846B1 EP 94115468 A EP94115468 A EP 94115468A EP 94115468 A EP94115468 A EP 94115468A EP 0648846 B1 EP0648846 B1 EP 0648846B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- minutes
- water
- leather
- alcohol
- liquor
- 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.)
- Expired - Lifetime
Links
- 239000003795 chemical substances by application Substances 0.000 claims description 39
- 239000010985 leather Substances 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 18
- 229920001897 terpolymer Polymers 0.000 claims description 12
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 11
- FXNDIJDIPNCZQJ-UHFFFAOYSA-N 2,4,4-trimethylpent-1-ene Chemical group CC(=C)CC(C)(C)C FXNDIJDIPNCZQJ-UHFFFAOYSA-N 0.000 claims description 10
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 10
- 150000008064 anhydrides Chemical group 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- OZCMOJQQLBXBKI-UHFFFAOYSA-N 1-ethenoxy-2-methylpropane Chemical compound CC(C)COC=C OZCMOJQQLBXBKI-UHFFFAOYSA-N 0.000 claims description 2
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- HVAMZGADVCBITI-UHFFFAOYSA-M pent-4-enoate Chemical compound [O-]C(=O)CCC=C HVAMZGADVCBITI-UHFFFAOYSA-M 0.000 claims description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 45
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 30
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 22
- 239000000243 solution Substances 0.000 description 17
- 239000006185 dispersion Substances 0.000 description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 14
- 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 11
- 235000019253 formic acid Nutrition 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 11
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 10
- 239000000839 emulsion Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000002585 base Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000000975 dye Substances 0.000 description 6
- 238000005886 esterification reaction Methods 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- -1 methylol groups Chemical group 0.000 description 5
- 238000006386 neutralization reaction Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 231100000241 scar Toxicity 0.000 description 5
- 235000017557 sodium bicarbonate Nutrition 0.000 description 5
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 235000013311 vegetables Nutrition 0.000 description 5
- 230000032050 esterification Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 239000003925 fat Substances 0.000 description 3
- 150000002191 fatty alcohols Chemical class 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 2
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 2
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 239000004280 Sodium formate Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- ZQMIGQNCOMNODD-UHFFFAOYSA-N diacetyl peroxide Chemical compound CC(=O)OOC(C)=O ZQMIGQNCOMNODD-UHFFFAOYSA-N 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
- 238000004043 dyeing Methods 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical group 0.000 description 2
- 230000037387 scars Effects 0.000 description 2
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 2
- 235000019254 sodium formate Nutrition 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 150000003510 tertiary aliphatic amines Chemical class 0.000 description 2
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- LAAVYEUJEMRIGF-UHFFFAOYSA-N 2,4,4-trimethylpent-2-ene Chemical compound CC(C)=CC(C)(C)C LAAVYEUJEMRIGF-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 1
- CMPLVXYOKPNUAI-UHFFFAOYSA-N 2-hydroperoxycyclohexan-1-one Chemical compound OOC1CCCCC1=O CMPLVXYOKPNUAI-UHFFFAOYSA-N 0.000 description 1
- BYDRTKVGBRTTIT-UHFFFAOYSA-N 2-methylprop-2-en-1-ol Chemical compound CC(=C)CO BYDRTKVGBRTTIT-UHFFFAOYSA-N 0.000 description 1
- BIISIZOQPWZPPS-UHFFFAOYSA-N 2-tert-butylperoxypropan-2-ylbenzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1 BIISIZOQPWZPPS-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
- XYFRHHAYSXIKGH-UHFFFAOYSA-N 3-(5-methoxy-2-methoxycarbonyl-1h-indol-3-yl)prop-2-enoic acid Chemical compound C1=C(OC)C=C2C(C=CC(O)=O)=C(C(=O)OC)NC2=C1 XYFRHHAYSXIKGH-UHFFFAOYSA-N 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 241000283707 Capra Species 0.000 description 1
- 241001553774 Euphorbia punicea Species 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 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 1
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical class CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical class [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 235000017343 Quebracho blanco Nutrition 0.000 description 1
- 241000065615 Schinopsis balansae Species 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Natural products CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- 229920005603 alternating copolymer Polymers 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- BTFJIXJJCSYFAL-UHFFFAOYSA-N arachidyl alcohol Natural products CCCCCCCCCCCCCCCCCCCCO BTFJIXJJCSYFAL-UHFFFAOYSA-N 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- BLCKNMAZFRMCJJ-UHFFFAOYSA-N cyclohexyl cyclohexyloxycarbonyloxy carbonate Chemical compound C1CCCCC1OC(=O)OOC(=O)OC1CCCCC1 BLCKNMAZFRMCJJ-UHFFFAOYSA-N 0.000 description 1
- 239000012933 diacyl peroxide Substances 0.000 description 1
- 125000001142 dicarboxylic acid group Chemical group 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 229960000735 docosanol Drugs 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 125000003010 ionic group Chemical group 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000991 leather dye Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- YPJUNDFVDDCYIH-UHFFFAOYSA-N perfluorobutyric acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)F YPJUNDFVDDCYIH-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 150000003139 primary aliphatic amines Chemical class 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 150000005619 secondary aliphatic amines Chemical class 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
- C14C3/22—Chemical tanning by organic agents using polymerisation products
Definitions
- the invention relates to improved retanning agents for making softer hydrophobic leather.
- retanning means aftertreatment of pre-tanned (generally chrome-tanned) Leather to color, levelness, softness, fullness as well as the behavior towards water (Hydrophobicity) to optimize and fix tannins.
- Retanning agents do not meet all the expectations placed on them, because they are either insufficiently hydrophobic or because of the handle, the colorability, the grain or the subsequent finishing of the leather disadvantageous influence.
- the multitude of desirable properties compels one Compromise.
- Retanning agents are desired that give the leather an optimal look Provide hydrophobicity (i.e. the leather while maintaining the water vapor permeability make it as impermeable as possible), but handle, colorability, firm grain and do not adversely affect the applicability of the subsequent dressing.
- Preferred monomers c) include, for example, styrene, ⁇ -methylstyrene, p-methylstyrene, Vinyl acetate, allyl acetate, isobutyl vinyl ether, allyl alcohol and methallyl alcohol.
- Terpolymers from a), b) and c) are known; see. e.g. DE-OS 27 01 760. You can be produced by free radical polymerization.
- the Polymerization takes place in an inert atmosphere under polymerization conditions organic solvents, especially in an aromatic solvent such as toluene or xylene.
- Suitable radical formers include, for example, diacyl peroxides such as diacetyl peroxide, Dibenzoyl peroxide, di-p-chlorobenzoyl peroxide, peroxy esters such as tert-butyl peroxyacetate, tert-butyl peroxybenzoate, dicyclohexyl peroxydicarbonate, alkyl peroxides such as bis (tert.-butylperoxybutane), dicumyl peroxide, tert.-butylcumyl peroxide, hydroperoxides such as cumene hydroperoxide, tert-butyl hydroperoxide, ketone peroxides such as Cyclohexanone hydroperoxide, methyl ethyl ketone hydroperoxide, acetylacetone peroxide or azoisobutyrodinitrile.
- diacyl peroxides such as diacetyl peroxide, Dibenzoyl peroxid
- the reaction of the terpolymers A with the alcohols B can either be direct in the solution of the terpolymers A or after isolation of the solid terpolymers A in substance, solution or suspension.
- the reaction can Temperatures of 60 to 180, preferably 80 to 140 ° C are carried out.
- Primary and secondary alcohols B are preferred. Suitable representatives include for example n-hexanol, cyclohexanol, n-octanol, 2-ethylhexanol, n-dodecanol, n-tetradecanol, n-hexadecanol, stearyl alcohol, eicosanol and behenyl alcohol or their mixtures.
- the reaction can be carried out in the presence or absence of an acid catalyst be performed.
- Mineral acids such as are suitable as such Sulfuric acid or anhydrous hydrogen chloride, aliphatic and aromatic Sulphonic acids such as methanesulphonic acids and p-toluenesulphonic acid, fluorinated aliphatic Carboxylic acids such as perfluorobutanoic or octanoic acid, and acidic ion exchangers.
- mineral acids such as are suitable as such Sulfuric acid or anhydrous hydrogen chloride, aliphatic and aromatic Sulphonic acids such as methanesulphonic acids and p-toluenesulphonic acid, fluorinated aliphatic Carboxylic acids such as perfluorobutanoic or octanoic acid, and acidic ion exchangers.
- esterified in the presence of an acidic catalyst then it is useful to remove the water of reaction in a with water not miscible organic solvents, e
- Base C preferably as an aqueous solution.
- Suitable bases C include, for example, alkali metal hydroxides and alcoholates as well as ammonia and primary, secondary and tertiary aliphatic amines with bis to 6 carbon atoms per molecule (which carry up to 1 hydroxyl group per alkyl radical can), especially sodium and potassium hydroxides and ammonia, Ethylamine, propylamine, n-butylamine, diethanolamine, dimethylamine and Triethylamine.
- Base C can be the polymer melt or solution or dispersion are added.
- the amount of base C is such that at least 20% of the carboxyl groups remaining after the esterification reaction be implemented. A conversion of all remaining carboxyl groups is possible; but it can also be advantageous to use only 20 to 80% of the remaining To neutralize carboxyl groups (In this context, the esterification reaction unreacted anhydride groups formally as 2 carboxyl groups be counted).
- the esterification reaction unreacted anhydride groups formally as 2 carboxyl groups be counted.
- the aqueous solutions or dispersions obtained are preferably based on neutralized wet blue material used, i.e. on chrome leather, which by Common neutralizing agents (e.g. sodium bicarbonate, formate, etc.) or neutralizing tanning agents adjusted to a pH of 4 to 7, preferably 5.5 to 6.5 has been.
- Common neutralizing agents e.g. sodium bicarbonate, formate, etc.
- neutralizing tanning agents adjusted to a pH of 4 to 7, preferably 5.5 to 6.5 has been.
- the neutralized wet blue material can be used possibly with commercially available retanning agents (replacement, white, resin and polymeric tanning agents), Vegetable tanning agents and fatliquors are treated. Want to produce dyed leather is dyed with dyes. Beyond that it is also possible, the solutions or dispersions on vegetable tanned purely vegetable Use leather for retanning before dyeing and greasing.
- aqueous solutions or dispersions obtained can also be used in others Stages of retanning, e.g. after treatment with exchange, white or Vegetable tanning agents can be used.
- the leather retanned according to the invention is distinguished by a very soft and full grip as well as good scar strength and scar smoothness from and have a clear pigmentation. Because of their high light fastness and Their good thermal yellowing resistance makes them ideal for Manufacture of light leather. In addition, show with the dispersions of the invention retanned leather has water-repellent properties.
- dispersion IV After a running time of 15 minutes, 1%, based on dry substance, of dispersion IV according to the invention is added as a 20.7% setting and the mixture is left to run for a further 45 minutes.
- the liquor pH is around 5.2.
- the resulting leathers are of good fullness and softness and stand out with excellent scar smoothness.
- the light fastness is level 5 to 6 (Xeno test), and the heat yellowing (24 hours, 120 ° C) is level 3 to 4 (Gray scale).
- dispersion III After a running time of 15 minutes, 1.5%, based on dry substance, of dispersion III according to the invention is added as a 15.7% setting and the mixture is left to run for a further 45 minutes.
- the liquor pH is around 5.0.
- the pH is adjusted by adding 1.5% Sodium formate and 0.4% sodium bicarbonate raised to approximately 6.0 and the liquor drained after 40 minutes.
- the resulting leathers are of good fullness and softness and stand out with excellent smooth scars with fine mill grain.
- dispersion I according to the invention (see preparation example 1) is added as a 12.7% setting and the mixture is left to run for 30 minutes.
- the liquor pH is around 5.0.
- split leather 25 kg are made in the usual way Chromium column (gap thickness approx. 1.3 mm) in 200% water (based on gap weight as all of the following) washed at 50 ° C for 10 minutes.
- the leathers After draining the liquor, the leathers are soaked in 200% water for 10 minutes Washed 60 ° C and in 100% water of 60 ° C with 7.0% of a commercially available Fat mixture greased.
- the liquor pH is around 4.5.
- the leather is added by adding 0.5% formic acid (85%, 1:10 diluted with water) acidified to a pH of approx. 4.0.
- the leather are rinsed in the usual way (water at 20 ° C, 5 minutes), stretched out, vacuum and hang-dried, air-conditioned, tunneled, aired, rerolled and again vacuum dried (1/2 minute, 70 ° C).
- the resulting gaps have a very high degree of whiteness and stand out with a soft full grip, the velor side having a soft, uniform short cut.
- 20 kg of New Zealand sheep wet blue are used to manufacture clothing nappa in 200% water (based on shaved weight, like all the following information) from Washed 40 ° C and 0.5% of a commercially available emulsifier for 20 minutes. After draining the liquor in 100% water at 40 ° C with a commercial self-dulling chrome-syntan retanning agent re-chromed for 15 minutes, 1% of a commercial synthetic fatliquor added and after 45 minutes running time with 3% of a commercial neutralization tanning agent and 0.3% sodium bicarbonate to pH 5.5 over 45 minutes neutralized.
- dispersion III according to the invention from preparation example 3 is added as a 15.7% setting and drummed for 45 minutes.
- the leathers are rinsed cold and finished in the usual way (dried, milled, minced etc.).
- the leathers have a soft full grip and are characterized by a fine smooth scars and a uniform, brilliant color.
- Vegetable uppers are made in the usual way tanned leather in 300% water (based on shaved weight, like all of the following Details) of 30 ° C for 10 minutes and after draining the liquor in 100% water at 30 ° C with 1% of a commercial bleaching agent over 20 Minutes bleached (pH of the liquor: approx. 3.3) and with 300% water at 40 ° C washed.
- the resulting leathers are soft, of good fullness and have a pleasant feel slimy grip.
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)
Description
- R1
- Wasserstoff oder Methyl,
- R2
- Wasserstoff, Methyl, Ethyl, -OR3, gegebenenfalls durch C1-C4-Alkyl substituiertes Phenyl oder Hydroxymethyl und
- R3
- C1-C4-Alkyl bedeuten,
178 g | Toluol |
170 g | Diisobutylen (technisches Gemisch aus 75-80 Gew.-% 2,4,4-Trimethylpenten-1 und 20-25 Gew.-% 2,4,4-Trimethylpenten-2) |
102 g | Maleinsäureanhydrid |
4 g | Azoisobuttersäuredinitril |
50 g | Toluol |
237 g | C12-C18-Fettalkoholgemisch |
650 g | Toluol. |
Claims (3)
- Verwendung von Umsetzungsprodukten aus(A) Terpolymerisat mit als Zahlenmittel bestimmten Molekulargewichten
M n von 5000 bis 60 000 ausa) Maleinsäureanhydrid,b) 80 bis 120 Mol-%, bezogen auf Komponente a), Diisobutylen und- R1
- Wasserstoff oder Methyl,
- R2
- Wasserstoff, Methyl, Ethyl, -OR3, gegebenenfalls durch C1-C4-Alkyl substituiertes Phenyl oder Hydroxymethyl und
- R3
- C1-C4-Alkyl bedeuten,
(B) aliphatischem und/oder cycloaliphatischem einwertigem C6-C24-Alkohol und(C) Base, - Verwendung nach Anspruch 1, wonach das Monomer c) aus der Reihe Styrol, α-Methylstyrol, p-Methylstyrol, Vinylacetat, Allylacetat, Isobutylvinylether, Allylalkohol, Methallylalkohol und deren Mischungen ausgewählt ist.
- Verwendung nach Anspruch 1, wonach 30 bis 75 % der den Anhydridgruppen des Terpolymerisats entsprechenden Carboxylgruppen mit Alkohol B verestert sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4334796A DE4334796A1 (de) | 1993-10-13 | 1993-10-13 | Weichmachende und hydrophobierende Nachgerbstoffe |
DE4334796 | 1993-10-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0648846A2 EP0648846A2 (de) | 1995-04-19 |
EP0648846A3 EP0648846A3 (de) | 1995-11-29 |
EP0648846B1 true EP0648846B1 (de) | 1998-12-23 |
Family
ID=6499990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94115468A Expired - Lifetime EP0648846B1 (de) | 1993-10-13 | 1994-09-30 | Weichmachende und hydrophobierende Nachgerbstoffe |
Country Status (4)
Country | Link |
---|---|
US (1) | US5472741A (de) |
EP (1) | EP0648846B1 (de) |
DE (2) | DE4334796A1 (de) |
ES (1) | ES2126036T3 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612986A1 (de) | 1996-04-01 | 1997-10-02 | Basf Ag | Verwendung von Copolymerisaten auf Basis ethylenisch ungesättigter Dicarbonsäuren oder Dicarbonsäureanhydride, niederer Olefine und hydrophober Comonomerer zum Nachgerben, Fetten oder Hydrophobieren von Leder und Pelzfellen |
US6248827B1 (en) | 1997-12-22 | 2001-06-19 | Bridgestone Corporation | Centipede polymers and preparation and application in rubber compositions |
US6248825B1 (en) | 1998-05-06 | 2001-06-19 | Bridgestone Corporation | Gels derived from extending grafted centipede polymers and polypropylene |
US6204354B1 (en) | 1998-05-06 | 2001-03-20 | Bridgestone Corporation | Soft compounds derived from polypropylene grafted disubstituted ethylene- maleimide copolymers |
US6207763B1 (en) | 1998-06-12 | 2001-03-27 | Bridgestone Corporation | Application of disubstituted ethylene-maleimide copolymers in rubber compounds |
US6184292B1 (en) | 1998-10-05 | 2001-02-06 | Bridgestone Corporation | Soft gel polymers for high temperature use |
US6133354A (en) * | 1998-11-17 | 2000-10-17 | Bridgestone Corporation | Copolymers as additives in thermoplastic elastomer gels |
US6191217B1 (en) | 1998-11-17 | 2001-02-20 | Bridgestone Corporation | Gels derived from polypropylene grafted alkyl vinylether-maleimide copolymers |
US6395040B1 (en) * | 2000-04-28 | 2002-05-28 | Wolverine World Wide, Inc. | Process for producing leather |
US6384134B1 (en) | 2000-06-05 | 2002-05-07 | Bridgestone Corporation | Poly(alkenyl-co-maleimide) and maleated polyalkylene grafted with grafting agent, and epoxy polymer |
US6350800B1 (en) | 2000-06-05 | 2002-02-26 | Bridgestone Corporation | Soft polymer gel |
US6476117B1 (en) | 2000-06-05 | 2002-11-05 | Bridgestone Corporation | Grafted near-gelation polymers having high damping properties |
US6417259B1 (en) | 2000-06-05 | 2002-07-09 | Bridgestone Corporation | Polyalkylene grafted centipede polymers |
US6353054B1 (en) | 2000-07-31 | 2002-03-05 | Bridgestone Corporation | Alkenyl-co-maleimide/diene rubber copolymers and applications |
US6359064B1 (en) | 2000-09-08 | 2002-03-19 | Bridgestone Corporation | Compound of polyester and polyalkylene grafted comb polymer |
DE10304959A1 (de) * | 2003-02-06 | 2004-08-19 | Basf Ag | Verfahren zur Herstellung von Leder |
US20060288493A1 (en) * | 2005-06-24 | 2006-12-28 | Wolverine World Wide, Inc. | Process For Producing Leather Footwear Lining |
US20060288494A1 (en) * | 2005-06-24 | 2006-12-28 | Wolverine World Wide, Inc. | Process for producing leather |
ES2483944T3 (es) | 2007-12-28 | 2014-08-08 | Bridgestone Corporation | Interpolímeros que contienen unidades méricas de isobutileno y dieno |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4190687A (en) * | 1972-05-09 | 1980-02-26 | Sumitomo Chemical Company, Limited | Method for treating leather |
IT1035147B (it) * | 1974-04-04 | 1979-10-20 | Bayer Ag | Procedimento per conciare cuoiocon oligoiuretani idrofili |
JPS50136315A (de) * | 1974-04-17 | 1975-10-29 | ||
DE2701760C3 (de) * | 1977-01-18 | 1982-04-01 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Papierleimungsmitteln |
DE2840501A1 (de) * | 1978-09-18 | 1980-03-27 | Basf Ag | Verfahren zur herstellung von copolymerisaten aus maleinsaeureanhydrid und alkenen |
DE3304120A1 (de) * | 1983-02-08 | 1984-08-09 | Henkel KGaA, 4000 Düsseldorf | Verfahren zur herstellung wasserdichter leder und pelze |
DE3529248A1 (de) * | 1985-08-16 | 1987-02-26 | Bayer Ag | Terpolymerisate |
TNSN89128A1 (fr) * | 1988-12-02 | 1991-02-04 | Rohn And Haas Company Independance Mall West | Traitement du cuir avec des copolymeres amphiphites choisis |
DE3931039A1 (de) * | 1989-09-16 | 1991-03-28 | Basf Ag | Verwendung von copolymerisaten auf basis von langkettigen ungesaettigten estern und ethylenisch ungesaettigten carbonsaeuren zum hydrophobieren von leder und pelzfellen |
US5348807A (en) * | 1991-02-05 | 1994-09-20 | Rohm And Haas Company | Polymeric retan fatliquor for low fogging upholstery leather |
-
1993
- 1993-10-13 DE DE4334796A patent/DE4334796A1/de not_active Withdrawn
-
1994
- 1994-09-30 EP EP94115468A patent/EP0648846B1/de not_active Expired - Lifetime
- 1994-09-30 DE DE59407529T patent/DE59407529D1/de not_active Expired - Fee Related
- 1994-09-30 ES ES94115468T patent/ES2126036T3/es not_active Expired - Lifetime
- 1994-10-06 US US08/319,191 patent/US5472741A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE4334796A1 (de) | 1995-04-20 |
ES2126036T3 (es) | 1999-03-16 |
EP0648846A3 (de) | 1995-11-29 |
US5472741A (en) | 1995-12-05 |
EP0648846A2 (de) | 1995-04-19 |
DE59407529D1 (de) | 1999-02-04 |
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