[go: up one dir, main page]

EP0356726B1 - Compositions d'essence contenant des esters d'acides polycarboxyliques et d'alcools à chaîne longue - Google Patents

Compositions d'essence contenant des esters d'acides polycarboxyliques et d'alcools à chaîne longue Download PDF

Info

Publication number
EP0356726B1
EP0356726B1 EP89114039A EP89114039A EP0356726B1 EP 0356726 B1 EP0356726 B1 EP 0356726B1 EP 89114039 A EP89114039 A EP 89114039A EP 89114039 A EP89114039 A EP 89114039A EP 0356726 B1 EP0356726 B1 EP 0356726B1
Authority
EP
European Patent Office
Prior art keywords
fuel
ester
alcohol
esters
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.)
Expired - Lifetime
Application number
EP89114039A
Other languages
German (de)
English (en)
Other versions
EP0356726A2 (fr
EP0356726A3 (en
Inventor
Hans Peter Dr. Rath
Helmut Dr. Mach
Joachim Dr. Schulze
Hans Dr. Otterbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP0356726A2 publication Critical patent/EP0356726A2/fr
Publication of EP0356726A3 publication Critical patent/EP0356726A3/de
Application granted granted Critical
Publication of EP0356726B1 publication Critical patent/EP0356726B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/19—Esters ester radical containing compounds; ester ethers; carbonic acid esters

Definitions

  • the invention relates to fuels for internal combustion engines with improved properties containing esters of aromatic di-, tri- or tetracarboxylic acids and long-chain alcohols.
  • the invention relates to fuel compositions for gasoline engines.
  • additive packages are added to gasoline in amounts of up to 2500 mg / kg. These generally consist of detergents, corrosion inhibitors, oxidation inhibitors, anti-icing agents, carrier oils and solvents.
  • Carrier oils primarily have the task of preventing the so-called valve plugging and ensuring a better distribution of the detergents.
  • polyethers and esters as carrier oils are said to reduce the increase in the octane requirement of engines as the number of operating hours increases.
  • esters as a gasoline additive has long been known. Their use as a gasoline additive is e.g. described in DE-OS 21 29 461. The esters mentioned there are, as expressly mentioned in the patent specification mentioned, thermally unstable.
  • DE 23 16 535 trimellitic acid dodecyl ester and GB 1 217 468 contain esters of e.g. C12-C15 alcohols which have been prepared by oxosynthesis. In both cases predominantly unbranched alcohols should be used.
  • thermally stable esters with a high molecular weight and based on branched alcohols are excellent carrier oils, which can save up to 30% of the usual detergents without the gasoline quality, ie the purifying effect in the intake and mixture formation system, worsened.
  • the invention relates to fuel compositions which have a low content, 0.005 to 0.2% by weight, based on the composition of esters of aromatic di-, tri- and tetracarboxylic acids with long-chain aliphatic, only carbon, hydrogen and oxygen-containing alcohols, which by Hydroformylation of branched olefins have been produced, the total carbon number of the esters being at least 36 carbon atoms and the molecular weight being 550 to 1500, preferably 600 to 1200.
  • esters to be used are prepared in a manner known per se by esterification or transesterification processes, the carboxyl groups being essentially completely esterified.
  • Aromatic di-, tri- or tetracarboxylic acids are o-phthalic acid, isophthalic acid, terephthalic acid, trimesic acid, trimellitic acid and pyromellitic acid. Of these, o-phthalic acid is preferred.
  • aliphatic ether alcohols each having an ether and hydroxyl group and having at least 17 carbon atoms, which can be isolated, for example, from the distillation residues of the oxo alcohols C8, C9, C10, C13 and C13 / C15 and which is believed to be can be characterized by the following general formula: where 7, 8, 9, 12 and 12 to 14 means.
  • Fuels for internal combustion engines are organic, mostly hydrocarbon-containing liquids that are suitable for the operation of Otto, Wankel and diesel engines.
  • hydrocarbons are also from coal Hydrogenation, alcohols of various origins and compositions and ethers such as methyl tertiary butyl ether contained therein. The admissible mixtures are mostly nationally defined worldwide.
  • esters to be used according to the invention are generally the fuels together with detergents, such as amides of oleic acid, ethylenediaminetetraacetic acid according to EP-A-6527 or polyisobutenyl succinic acid, and in particular polybutenamines prepared from polybutene alcohol with NH3, aminoethylethanolamine, dimethylaminopropylamine, triethylene tetramine, or tetraethylene they are described in US-A-3,756,793, DE-A-21 25 039, EP 244 616, to which reference is hereby made, corrosion inhibitors, i.e.
  • esters to be used according to the invention with polybutenamines is preferred, the ratio of the esters to the polybutenamines generally being 1: 2 to 3: 1.
  • a carrier oil combination with polyethers or mineral oil is also possible; this enables a reduction in the ester content in relation to the polybutenamines or amides.
  • 1150 g oxo oil from the cobalt-catalyzed production of iso-decanol with an OH number of 154, an acid number of 0.76, a saponification number of 36 and a CO number of 1.8 and with a predominant content of alcohols at 20 ° C -Atoms, are heated under reflux with 208 g phthalic anhydride, 0.2 g tetrabutyl orthotitanate and 150 g toluene on a water separator for 36 h. 28 g of water separate out and the acid number drops to 2.
  • 1043 g of an ester mixture are obtained, which is characterized as follows:
  • the following table shows the effect of known carrier oils and the esters to be used according to the invention in combination with known detergents in gasoline for internal combustion engines.
  • the amounts of esters listed in the table were added unleaded premium petrol (RON 95; DIN 51607) and test bench tests were carried out with a 1.2 l Opel Kadett engine in accordance with CEC-F-O2-T-79.
  • the reference oil RL 51 was used as engine oil.
  • the table shows an increasing effect on the inlet valves of the 1.2 liter Opel Kadett with the molecular weight of the ester.
  • Experiments 2 to 4 of the table show a gradual reduction in the intake valve deposits compared to operating with fuel without additives (experiment 1).
  • a Solvent Neutral 500 with a viscosity of 17 mm2 / s at 100 ° C was used.
  • a polypropylene glycol with a viscosity of 100 mm2 / s at 40 ° C was used.
  • Experiments 4 to 8 are esters of high purity, ie OH number less than 1, acid number less than 0.1 and ash less than 1 mg / kg.
  • the C25 phthalate was with an alcohol prepared, which was obtained by hydroformylation of a hexa-isobutene from the production of reactive polyisobutene according to DE-AS 27 02 604.
  • the viscosity of this ester is 31 mm2 / s at 100 ° C.
  • the recommended dosage of the commercial polybutenamine for formulations with mineral oil is 350 mg / kg.
  • the esters according to the invention enable savings of about 30% in polymeric detergents. Results with other higher viscosity detergents are comparable.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Detergent Compositions (AREA)

Claims (14)

1. Carburants pour moteurs à combustion interne, contenant de 0,005 à 0,2% en poids, par rapport au carburant, d'esters d'acides di-, tri- ou tétracarboxyliques aromatiques et d'alcools aliphatiques à longue chaîne quine renferment pas plus de 33 atomes de carbone et qui ont été préparés par hydroformylation d'oléfines ramifiees, le nombre total d'atomes de carbone des esters s'élevant au moins à 36 et leur poids moléculaire étant compris entre 550 et 1500.
2. Carburants selon la revendication 1, caractérisés en ce que les esters contiennent, en tant que composant alcool, des alcools oxo en C₂₁, C₂₅, C₂₉ et./ou C₃₃ de butènes oligomères.
3. Carburants selon la revendication 1, caractérisés en ce que les esters sont des diesters d'acide phtalique.
4. Carburants selon la revendication 1, caractérisés en ce que les esters contiennent, en tant que composant alcool, des résidus de distillation de l'hydroformylation d'oléfines.
5. Carburants selon la revendication 1, caractérisés en ce que les esters contiennant, en tant que composant alcool, des éther-alcools aliphatiques à longue chaîne qui contiennent un groupement éther et un groupement hydroxy et renferment au moins 17 atomes de carbone.
6. Carburants selon la revendication 5, caractérisés en ce que les alcools sont des composés de formule

        Cn+1H2n+3 - O - Cn+2H2n+4OH

dans laquelle n est mis pour 7, 8, 9, 12 et 12 à 14, et. les restes hydrocarbonés sont ramifiés.
7. Carburants selon la revendication 1, caractérisés en ce qu'ils contiennent, en dehors des esters, des détergents, des produits antigivrage, des inhibiteurs de corrosion et des antioxydants.
8. Procédé de préparation de carburants pour moteurs à combustion interne, caractérisé en ce qu'on ajoute, aux carburants, de 0,005 à 0,2% en poids, par rapport au carburant, d'esters d'acides di-, tri- ou tétracarboxyliques aromatiques et d'alcools aliphatiques à longue chaîne que ne renferment pas plus de 33 atomes de carbone et qui ont été préparés par hydroformylation d'oléfines ramifiées, le nombre total d'atomes de carbone des esters s'élevant au moins à 36 et leur poids moléculaire étant compris entre 550 et 1500.
9. Procédé selon la revendication 8, caractérisé en ce qu'on ajoute des esters qui contiennent, en tant que composatn alcool, des alcools oxo en C₂₁, C₂₅, C₂₉ et/ou C₃₃ de butènes oligomères.
10. Procédé selon la revendication 8, caractérisé en ce qu'on ajout, en tant qu'esters, des diesters d'acide phtalique.
11. Procédé selon la revendication 8, caractérisé en ce qu'on ajoute des esters qui contiennent, en tant que composant alcool, des résidus de distillation de l'hydroformylation d'oléfines.
12. Procédé selon la revendication 8, caractérisé en ce qu'on ajoute des esters qui contiennent, en tant que composant alcool, des éther-alcools aliphatiques à longue chaîne qui contiennent un groupement éther et un groupement hydroxy et renferment au moins 17 atomes de carbone.
13. Procédé selon la revendication 12, caractérisé en ce que les alcools sont des composés de formule

        Cn+1H2n+3 - O - Cn+2H2n+4OH

dans laquelle n est mis pour 7, 8, 9, 12 et 12 à 14, et les restes hydrocarbonés sont ramifiés.
14. Procédé selon la revendication 8, caractérisé en ce qu'en dehors des esters, on ajoute aux carburants des détergents, des produits antigivrage, des inhibiteurs de corrosion et des antioxydants.
EP89114039A 1988-08-06 1989-07-29 Compositions d'essence contenant des esters d'acides polycarboxyliques et d'alcools à chaîne longue Expired - Lifetime EP0356726B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3826797 1988-08-06
DE3826797A DE3826797A1 (de) 1988-08-06 1988-08-06 Kraftstoffzusammensetzungen, die polycarbonsaeureester langkettiger alkohole enthalten

Publications (3)

Publication Number Publication Date
EP0356726A2 EP0356726A2 (fr) 1990-03-07
EP0356726A3 EP0356726A3 (en) 1990-03-28
EP0356726B1 true EP0356726B1 (fr) 1992-05-13

Family

ID=6360387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114039A Expired - Lifetime EP0356726B1 (fr) 1988-08-06 1989-07-29 Compositions d'essence contenant des esters d'acides polycarboxyliques et d'alcools à chaîne longue

Country Status (3)

Country Link
EP (1) EP0356726B1 (fr)
DE (2) DE3826797A1 (fr)
ES (1) ES2030945T3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398100A1 (fr) * 1989-05-19 1990-11-22 BASF Aktiengesellschaft Compositions de combustible contenant des produits d'alkoxylation
US5405419A (en) * 1994-05-02 1995-04-11 Chevron Chemical Company Fuel additive compositions containing an aliphatic amine, a polyolefin and a poly(oxyalkylene) monool
US5405418A (en) * 1994-05-02 1995-04-11 Chevron Chemical Company Fuel additive compositions containing an aliphatic amine, a polyolefin and an aromatic ester
EP0704519A1 (fr) 1994-09-28 1996-04-03 Basf Aktiengesellschaft Mélange d'amines, polymères d'hydrocarbures et solvants huileux, convenant comme additif pour combustibles et lubrifiants
US5674950A (en) * 1994-03-07 1997-10-07 Exxon Chemical Patents Inc. Polymers having terminal hydroxyl aldehyde, or alkylamino substitutents and derivatives thereof
US5691422A (en) * 1994-03-07 1997-11-25 Exxon Chemical Patents Inc. Saturated polyolefins having terminal aldehyde or hydroxy substituents and derivatives thereof
US6267791B1 (en) 1993-03-20 2001-07-31 Basf Aktiengesellschaft Mixtures suitable as fuel additives
US6660050B1 (en) 2002-05-23 2003-12-09 Chevron U.S.A. Inc. Method for controlling deposits in the fuel reformer of a fuel cell system

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0781794B1 (fr) 1995-12-19 2000-05-17 Chevron Chemical Company LLC Alkylphényl polyoxyalkylène amines à très longues chaínes, et compositions de combustible les contenant
US5637119A (en) 1995-12-29 1997-06-10 Chevron Chemical Company Substituted aromatic polyalkyl ethers and fuel compositions containing the same
US5599359A (en) 1995-12-29 1997-02-04 Chevron Chemical Company Polyalkylphenyl and polyalkyloxycarbonylphenyl hydroxybenzoates and fuel compositions containing the same
US5628803A (en) 1995-12-29 1997-05-13 Chevron Chemical Company Polyalkylphenyl and polyalkyloxycarbonylphenyl amino and nitro benzoates and fuel compositions containing the same
US7824454B2 (en) 2004-08-17 2010-11-02 Chevron Oronite Company Llc Fuel composition for rectifying fuel gauge sending unit problems
RU2487922C2 (ru) * 2007-11-28 2013-07-20 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Бензиновые композиции
US8552122B2 (en) 2009-03-31 2013-10-08 The University Of Southern Mississippi Amine-terminated telechelic polymers and precursors thereto and methods for their preparation
US8394898B2 (en) 2009-07-31 2013-03-12 The University Of Southern Mississippi In situ formation of hydroxy chain end functional polyolefins
WO2011032857A2 (fr) 2009-09-15 2011-03-24 Basf Se Utilisation de dérivés de composés aromatiques en tant que marqueurs pour des liquides
NZ768126A (en) 2018-03-23 2025-07-25 Chevron Usa Inc Composition and method for preventing or reducing low speed pre-ignition in spark-ignited internal combustion engines
MY205195A (en) 2018-10-04 2024-10-07 Chevron Usa Inc Hydride donors as an additive for reducing low speed pre-ignition events
US11142715B2 (en) 2018-11-07 2021-10-12 Chevron U.S.A. Inc. Amino alkanediols and carboxylate salts as additives for improving fuel efficiency
MY209110A (en) 2018-11-15 2025-06-22 Chevron Usa Inc Composition and method for preventing or reducing low speed pre-ignition in spark-ignited internal combustion engines
CN113227332B (zh) 2018-11-15 2024-01-12 雪佛龙奥伦耐有限责任公司 用于防止或降低火花点燃式内燃机的低速早燃的组合物和方法
CN114341321A (zh) 2019-09-10 2022-04-12 雪佛龙奥伦耐有限责任公司 通过燃料添加剂减少燃烧发动机的摩擦
KR102861162B1 (ko) 2020-07-07 2025-09-18 셰브런 오로나이트 컴퍼니 엘엘씨 인젝터 노즐 오손을 완화하고 미립자 배출물을 감소시키기 위한 연료 첨가제
MY208247A (en) 2020-09-17 2025-04-29 Chevron Usa Inc Aryloxy alkylamines as fuel additives for reducing injector fouling in direct injection spark ignition gasoline engines
AU2022249975A1 (en) 2021-03-31 2023-10-05 Chevron Oronite Company Llc Fuel additives for reducing low speed pre-ignition events
JP2024511825A (ja) 2021-03-31 2024-03-15 シェブロン・オロナイト・カンパニー・エルエルシー 低速でのプレイグニッション事象を軽減するための組成物
MX2024004111A (es) 2021-10-14 2024-04-19 Chevron Usa Inc Aditivos de combustible de poliamida.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL277036A (fr) * 1961-04-12
GB1217468A (en) * 1969-04-18 1970-12-31 Shell Int Research Ester mixtures
GB1346765A (en) * 1970-06-16 1974-02-13 Shell Int Research Fuel compositions
GB2081299B (en) * 1980-07-29 1984-01-18 Exxon Research Engineering Co Two-stroke fuel-lubricant composition
DE3700363A1 (de) * 1987-01-08 1988-07-21 Basf Ag Kraft- oder schmierstoffzusammensetzung und verwendung von polybutyl- oder polyisobutylderivaten in denselben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Römpps Chemie-Lexikon; Achte, neubearbeitete und erweiterte Auflage;Franckh'sche Verlagshandlung Stuttgart, Seiten 4507, 4508 u. 2101, 2102 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398100A1 (fr) * 1989-05-19 1990-11-22 BASF Aktiengesellschaft Compositions de combustible contenant des produits d'alkoxylation
US5123932A (en) * 1989-05-19 1992-06-23 Basf Aktiengesellschaft Motor fuel compositions containing alkoxylation products
US6267791B1 (en) 1993-03-20 2001-07-31 Basf Aktiengesellschaft Mixtures suitable as fuel additives
US5674950A (en) * 1994-03-07 1997-10-07 Exxon Chemical Patents Inc. Polymers having terminal hydroxyl aldehyde, or alkylamino substitutents and derivatives thereof
US5691422A (en) * 1994-03-07 1997-11-25 Exxon Chemical Patents Inc. Saturated polyolefins having terminal aldehyde or hydroxy substituents and derivatives thereof
US5777041A (en) * 1994-03-07 1998-07-07 Exxon Chemical Patents Inc Saturated polyolefins having terminal aldehyde or hydroxy substituents and derivatives thereof
US5919869A (en) * 1994-03-07 1999-07-06 Exxon Chemical Patents, Inc. Polymers having terminal hydroxyl, aldehyde, or alkylamino substituents and derivatives thereof
US5405419A (en) * 1994-05-02 1995-04-11 Chevron Chemical Company Fuel additive compositions containing an aliphatic amine, a polyolefin and a poly(oxyalkylene) monool
US5405418A (en) * 1994-05-02 1995-04-11 Chevron Chemical Company Fuel additive compositions containing an aliphatic amine, a polyolefin and an aromatic ester
EP0704519A1 (fr) 1994-09-28 1996-04-03 Basf Aktiengesellschaft Mélange d'amines, polymères d'hydrocarbures et solvants huileux, convenant comme additif pour combustibles et lubrifiants
US6579329B1 (en) 1994-09-28 2003-06-17 Basf Ag Mixture suitable as a fuel additive and lubricant additive and comprising amines, hydrocarbon polymers and carrier oils
US6660050B1 (en) 2002-05-23 2003-12-09 Chevron U.S.A. Inc. Method for controlling deposits in the fuel reformer of a fuel cell system

Also Published As

Publication number Publication date
EP0356726A2 (fr) 1990-03-07
DE58901397D1 (de) 1992-06-17
DE3826797A1 (de) 1990-02-08
ES2030945T3 (es) 1992-11-16
EP0356726A3 (en) 1990-03-28

Similar Documents

Publication Publication Date Title
EP0356726B1 (fr) Compositions d'essence contenant des esters d'acides polycarboxyliques et d'alcools à chaîne longue
DE69111702T2 (de) Zusätze für Benzinzusammensetzung.
EP0398100B1 (fr) Compositions de combustible contenant des produits d'alkoxylation
EP0464489B1 (fr) Carburants contenant un ester, pour moteurs diesel et à allumage par étincelle
EP0548617B1 (fr) Carburants pour moteurs à allumage par étincelle
EP0374461B1 (fr) Combustibles pour machines à combustion
EP0277345B1 (fr) Composition de carburant ou de lubrifiant, contenant des dérivés de polybutyl ou polyisobutyl
EP0012345B1 (fr) Carburants et leur utilisation
EP0289785B1 (fr) Procédé pour empêcher ou diminuer les dépôts dans les systèmes de préparation de mélanges pour moteurs
DE69730709T2 (de) Brennstoffzusätze
DE60214332T2 (de) Alkylsubstituierte cresolpolyalkoxylate und ihre Verwendung in Brennstoffen
DE3826608A1 (de) Polyetheramine oder polyetheraminderivate enthaltende kraftstoffe fuer ottomotoren
EP0310875A1 (fr) Combustibles contenant une polyétheramine pour moteur à allumage par étincelle
DE2034383A1 (de) Gemische synthetischer Ester und ihre Verwendung
EP1230330B1 (fr) Utilisation de sels d'acide gras d'oligoamines alcoxylees comme agents ameliorants du pouvoir lubrifiant de produits petroliers
EP0704519B1 (fr) Mélange d'amines, polymères d'hydrocarbures et solvants huileux, convenant comme additif pour combustibles et lubrifiants
EP1157086A1 (fr) Polyalcoxylates de polyalcenealcool et leur utilisation dans des carburants et des lubrifiants
EP0489322A2 (fr) Polyétherdiamines alkoxylés, procédé pour leur préparation et carburants pour moteurs à allumage par étincelle contenant ceux-ci
DE69601701T2 (de) Kraftstoffzusammensetzungen
DE69115894T2 (de) Motorbrennstoffzusatzmittelzusammensetzung und methode zu ihrer herstellung
EP0006527B1 (fr) Carburants pour moteurs à carburateur contenant un mélange d'additifs
DE69317614T2 (de) Benzinzusammensetzung
EP1177270A1 (fr) Polyalcene-alcool-polyetheramines et leur utilisation dans les carburants et les lubrifiants
DE964279C (de) Zusatzmittel fuer Motortreibstoffe
DE2645713A1 (de) Kraftstoffe fuer ottomotoren

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE ES FR GB IT NL

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE ES FR GB IT NL

17P Request for examination filed

Effective date: 19900308

17Q First examination report despatched

Effective date: 19910114

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE ES FR GB IT NL

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 58901397

Country of ref document: DE

Date of ref document: 19920617

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2030945

Country of ref document: ES

Kind code of ref document: T3

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: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20040704

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040708

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20040719

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040728

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040806

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20040909

Year of fee payment: 16

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: 20050729

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050729

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: 20050730

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050731

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 THE APPLICANT RENOUNCES

Effective date: 20050813

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20060201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060331

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050730

BERE Be: lapsed

Owner name: *BASF A.G.

Effective date: 20050731