EP0064494A1 - Copper catalyst for fuels - Google Patents
Copper catalyst for fuelsInfo
- Publication number
- EP0064494A1 EP0064494A1 EP81900105A EP81900105A EP0064494A1 EP 0064494 A1 EP0064494 A1 EP 0064494A1 EP 81900105 A EP81900105 A EP 81900105A EP 81900105 A EP81900105 A EP 81900105A EP 0064494 A1 EP0064494 A1 EP 0064494A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- methanol
- toluene
- isopropyl alcohol
- cupric sulfate
- picric 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.)
- Withdrawn
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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/12—Inorganic compounds
- C10L1/1208—Inorganic compounds elements
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/12—Inorganic compounds
- C10L1/1233—Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/12—Inorganic compounds
- C10L1/1275—Inorganic compounds sulfur, tellurium, selenium containing compounds
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/16—Hydrocarbons
- C10L1/1608—Well defined compounds, e.g. hexane, benzene
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/16—Hydrocarbons
- C10L1/1616—Hydrocarbons fractions, e.g. lubricants, solvents, naphta, bitumen, tars, terpentine
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
- C10L1/1822—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms
- C10L1/1824—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms mono-hydroxy
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/185—Ethers; Acetals; Ketals; Aldehydes; Ketones
- C10L1/1857—Aldehydes; Ketones
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
- C10L1/2222—(cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/23—Organic compounds containing nitrogen containing at least one nitrogen-to-oxygen bond, e.g. nitro-compounds, nitrates, nitrites
- C10L1/231—Organic compounds containing nitrogen containing at least one nitrogen-to-oxygen bond, e.g. nitro-compounds, nitrates, nitrites nitro compounds; nitrates; nitrites
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Definitions
- the present invention is an energy-saving fuel additive for gasoline and diesel engines which more particularly includes addition to domestic heating and light industrial oil (#2 and #3) and residual and bunker fuels (#4, #5, and #6).
- This fuel additive comprises as active ingredients a major proportion of picric acid and a minimum proportion of cupric sulfate (CuSO 4 ⁇ no H 2 O) :
- cuprous sulfate may be utilized in lieu of cupric sulfate, although not preferred.
- the basic additive has two variations which are included in the present invention.
- One variation replaces the toluene with a solvent ratio of preferred about 10% methanol and 90% isopropyl alcohol by weight.
- Primene 81R .5 - 1.0% The methanol/isopropyl alcohol substitution may be varied up to 50/50. The purpose of the substitution for toluene lies in the lesser toxicity values.
- a second alternative replaces toluene with about 10% methanol, 45% isopropyl alcohol, and 45% kerosene:
- the methanol/isopropyl alcohol/kerosene substitution for toluene may be varied to about 25% methanol, 25% isopropyl alcohol, and 50% kerosene. This alternative which includes kerosene is for cost conservation.
- An additional product which is targeted towards high flash point in gasoline comprises:
- MIBK Methyl isobutyl ketone
- additive I Of primary interest in the present application and invention is the basic formulation which substitutes cupric sulfate for ferrous sulfate in the Webb prior art. It has been found that the present copper composition is more active and imparts more power to the fuel than the ferrous compositions previously used.
- the preferred components of additive I are:
- additive II are the same as the preferred components of additive I but the toluene is replaced by a combination of 10% methanol and 90% isopropyl alcohol.
- additive III are the same as the preferred components of additive I but the toluene is replaced by a combination of 10% methanol, 45% isopropyl alcohol, and 45% kerosene. All are percent by weight.
- compositions related to a high flash point gasoline which utilizes the following preferred components:
- MIBK Methyl isobutyl ketone 5%
- Another high flash point diesel formulation utilizes the following preferred components:
- MIBK Methyl isobutyl ketone 5%
- the copper sulfate which is useful in this invention is cupric sulfate, preferably the dehydrated variety CuSO 4 ⁇ no H 2 O. Experiments have shown that the synergistic catalytic activity of this compound exceeds that of iron or ferrous sulfate previously used by a substantial degree.
- Picric Acid This trinitrophenol acts synergistically with the cuprous sulfate to give the active component of this invention.
- toluene is. utilized.
- alkyl benzenes alkyl benzenes
- para-xylenes alkyl benzenes
- mesitylenes are operable.
- toluene is replaced with other less toxic solvents.
- the Alcoholic Solvents Of the lower alkanols useful in this invention methyl alcohol and isopropanol are preferred, although any C 1 -C 6 lower alkanol straight- or branch-chain can be used. Of additional interest is normal butyl alcohol which is used in the formulation designed to give a high flash point.
- Nitrobenzene This compound is utilized as an additional solvent. It is miscible with alkanols and is a superior organic solvent for the picric acid.
- Primene are tertiary alkylamines which are a cross of primary aliphatic amines of the general formula R 1 (R 2 ) (R 3 )CNH 2 in which the amino group is linked to a tertiary carbon atom.
- the amines utilized in this invention are Primene 81R and Primene JM-T, with the 81R preferred. These amines are anti-oxidants and stabilizers for fuel oils and jet fuels.
- the catalytic converters were welded in position prior to the next test series. Baseline FTP and HFET tests were conducted and replicate baseline tests followed. The same additive used for testing without catalytic converters was then added at the same 12:1 ratio. FTP/HFET testing with additive was performed on all vehicles with replicate tests immediately thereafter.
- the vehicles incurred an average of 1672 miles.
- the Chevrolet Monte Carlo (#0051) had 1591 miles; the Ford LTD (#0052) had 1740 miles; and the Buick Regal (#0053) had 1686 miles.
- the miles were accumulated with and without catalytic converters, with commercial unleaded fuel and with commercial unleaded fuel with an additive.
- Table 1 relates to cupric sulfate with the formulation of this invention designated additive I.
- Table 2 relates to ferrous sulfate using the formula as noted in Webb US Patent 4,145,190, column 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Catalysts (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Additif ameliore de combustible d'economie d'energie pour des moteurs a reaction, des moteurs a essence et des moteurs diesel, comprenant des additions aux huiles de chauffage domestique et aux huiles legeres industrielles (No. 2 et No. 3) et au combustible residuel ou de soute (No. 4, No. 5, et No. 6), comprenant comme ingredients actifs un melange catalytique d'une grande proportion d'acide picrique et d'une petite proportion de sulfate cuivrique. Sulfate cuivrique: 0,01 - 0,03%; acide picrique: 1 - 2%; methanol: 35 - 50%; alcool d'isopropyle: 15 - 5%; toluene: 43 - 48%; nitrobenzene: 0,6 - 1,0%; primene 81R: 0,5 - 1,0%. Des variations supplementaires comprennent (1) le remplacement du toluene avec environ 10% de methanol et 90% d'alcool d'isopropyle pour des raisons de toxicite et (2) le remplacement du toluene avec 10% de methanol, 45% d'alcool d'isopropyle, et 45% de kerozene comme facteur de reduction des couts. Un additif preferentiel consiste en : sulfate cuivrique: 0,02%; acide picrique: 1,54%; methanol: 35%; alcool d'isopropyle: 15%; toluene: 48, 3%; nitrobenzene: 0,8%; primene 81R: 0,05%.Improved energy saving fuel additive for jet, gasoline and diesel engines, including additions to domestic heating oils and light industrial oils (No. 2 and No. 3) and fuel residual or bunker (No. 4, No. 5, and No. 6), comprising as active ingredients a catalytic mixture of a large proportion of picric acid and a small proportion of cupric sulfate. Cupric sulfate: 0.01 - 0.03%; picric acid: 1 - 2%; methanol: 35-50%; isopropyl alcohol: 15-5%; toluene: 43-48%; nitrobenzene: 0.6 - 1.0%; primene 81R: 0.5 - 1.0%. Additional variations include (1) replacing toluene with approximately 10% methanol and 90% isopropyl alcohol for reasons of toxicity and (2) replacing toluene with 10% methanol, 45% alcohol isopropyl, and 45% kerozene as a cost reduction factor. A preferential additive consists of: cupric sulfate: 0.02%; picric acid: 1.54%; methanol: 35%; isopropyl alcohol: 15%; toluene: 48.3%; nitrobenzene: 0.8%; primene 81R: 0.05%.
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1980/001509 WO1982001717A1 (en) | 1980-11-12 | 1980-11-12 | Copper catalyst for fuels |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0064494A1 true EP0064494A1 (en) | 1982-11-17 |
EP0064494A4 EP0064494A4 (en) | 1983-03-15 |
Family
ID=22154644
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19810900105 Withdrawn EP0064494A4 (en) | 1980-11-12 | 1980-11-12 | Copper catalyst for fuels. |
EP19800902355 Withdrawn EP0064974A4 (en) | 1980-11-12 | 1980-11-17 | High flash point additives or compositions for gasoline and diesel fuels. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19800902355 Withdrawn EP0064974A4 (en) | 1980-11-12 | 1980-11-17 | High flash point additives or compositions for gasoline and diesel fuels. |
Country Status (8)
Country | Link |
---|---|
EP (2) | EP0064494A4 (en) |
JP (2) | JPS57501854A (en) |
AU (1) | AU6645781A (en) |
BR (1) | BR8009120A (en) |
DE (1) | DE3050641A1 (en) |
GB (2) | GB2099850A (en) |
NL (2) | NL8020472A (en) |
WO (2) | WO1982001717A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2280200B (en) * | 1993-06-28 | 1997-08-06 | Exonflame Limited | Fuel oil additives |
GB2330149A (en) * | 1997-10-10 | 1999-04-14 | Sayed Ahmed | Fuel additive for the reduction of post-combustion pollutants |
CN1896197B (en) * | 2006-06-26 | 2011-04-06 | 于涛 | Methanol modified mixer |
USD879408S1 (en) | 2016-06-06 | 2020-03-31 | Mondelez Europe Gmbh | Cracker |
USD862834S1 (en) | 2016-06-27 | 2019-10-15 | Mondelez Europe Gmbh | Cracker |
USD887666S1 (en) | 2017-05-19 | 2020-06-23 | Generale Biscuit | Food bar |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE535369A (en) * | ||||
US1669181A (en) * | 1924-05-10 | 1928-05-08 | Chester A Walter | Fuel for internal-combustion engines and motors |
US2962439A (en) * | 1956-12-07 | 1960-11-29 | Sun Oil Co | Fuel and lubricant additives for reducing combustion chamber deposits |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1271114A (en) * | 1917-10-12 | 1918-07-02 | Us Ind Alcohol Co | Liquid fuel. |
US1419910A (en) * | 1917-10-12 | 1922-06-20 | Us Ind Alcohol Co | Liquid fuel |
US1820983A (en) * | 1926-02-15 | 1931-09-01 | Standard Oil Dev Co | Heavy oil fuel |
GB743472A (en) * | 1951-03-01 | 1956-01-18 | Power Jets Res & Dev Ltd | Improvements in or relating to fuel oils and the combustion of fuel oils |
US4145190A (en) * | 1977-06-24 | 1979-03-20 | Natural Resources Guardianship International, Inc. | Catalytic fuel additive for jet, gasoline, diesel, and bunker fuels |
US4099930A (en) * | 1977-04-01 | 1978-07-11 | Natural Resources Guardianship International, Inc. | Catalytic fuel additive for gasoline and diesel engines |
US4188205A (en) * | 1978-03-06 | 1980-02-12 | Alchem, Inc. | Fuel injection in blast furnaces |
US4242100A (en) * | 1979-10-15 | 1980-12-30 | Tri-Pak, Inc. | Motor fuel composition |
-
1980
- 1980-11-12 EP EP19810900105 patent/EP0064494A4/en not_active Withdrawn
- 1980-11-12 BR BR8009120A patent/BR8009120A/en unknown
- 1980-11-12 JP JP50025781A patent/JPS57501854A/ja active Pending
- 1980-11-12 AU AU66457/81A patent/AU6645781A/en not_active Abandoned
- 1980-11-12 GB GB8219351A patent/GB2099850A/en not_active Withdrawn
- 1980-11-12 NL NL8020472A patent/NL8020472A/en unknown
- 1980-11-12 DE DE19803050641 patent/DE3050641A1/en not_active Withdrawn
- 1980-11-12 WO PCT/US1980/001509 patent/WO1982001717A1/en not_active Application Discontinuation
- 1980-11-17 GB GB8219352A patent/GB2099774A/en not_active Withdrawn
- 1980-11-17 EP EP19800902355 patent/EP0064974A4/en not_active Withdrawn
- 1980-11-17 JP JP50010580A patent/JPS57501853A/ja active Pending
- 1980-11-17 WO PCT/US1980/001530 patent/WO1982001718A1/en not_active Application Discontinuation
- 1980-11-17 NL NL8020447A patent/NL8020447A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE535369A (en) * | ||||
US1669181A (en) * | 1924-05-10 | 1928-05-08 | Chester A Walter | Fuel for internal-combustion engines and motors |
US2962439A (en) * | 1956-12-07 | 1960-11-29 | Sun Oil Co | Fuel and lubricant additives for reducing combustion chamber deposits |
Non-Patent Citations (1)
Title |
---|
See also references of WO8201717A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU6645781A (en) | 1982-06-07 |
NL8020447A (en) | 1982-10-01 |
EP0064974A4 (en) | 1983-03-15 |
EP0064974A1 (en) | 1982-11-24 |
JPS57501853A (en) | 1982-10-14 |
WO1982001718A1 (en) | 1982-05-27 |
EP0064494A4 (en) | 1983-03-15 |
GB2099774A (en) | 1982-12-15 |
NL8020472A (en) | 1982-10-01 |
BR8009120A (en) | 1982-10-13 |
WO1982001717A1 (en) | 1982-05-27 |
DE3050641A1 (en) | 1982-12-30 |
JPS57501854A (en) | 1982-10-14 |
GB2099850A (en) | 1982-12-15 |
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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): FR |
|
17P | Request for examination filed |
Effective date: 19821118 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19840601 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HART, RIEN 'T, |