WO1999037726A1 - Composition pour decaper les peintures - Google Patents
Composition pour decaper les peintures Download PDFInfo
- Publication number
- WO1999037726A1 WO1999037726A1 PCT/FR1999/000111 FR9900111W WO9937726A1 WO 1999037726 A1 WO1999037726 A1 WO 1999037726A1 FR 9900111 W FR9900111 W FR 9900111W WO 9937726 A1 WO9937726 A1 WO 9937726A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition according
- carbon atoms
- stripping
- aromatic ether
- composition
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
- C09D9/005—Chemical paint or ink removers containing organic solvents
Definitions
- the present invention relates to a composition for stripping coatings, for example based on paints.
- the invention also relates to the process for stripping paints deposited on a substrate using said composition.
- the first stripping compositions for removing paints were based on methylene chloride and / or 1,1,1-trichloroethane (T.1.1.1.) (See for example US-A 2507 983 and DE-A 2524752).
- compositions have the advantage of being effective and inexpensive. However, they can cause damage to the environment and more particularly to the ozone layer (Montreal protocol aimed at stopping the use of T.1.1.1 normally at the end of 1995).
- compositions are not always suitable for the stripping of coatings of different nature such as water-based paints, oil-based paints, lacquers, varnishes and plastic resins. It is known from US-A 2694658 to use dimethylsutfoxide as a solvent for pickling paints. However, this type of solvent has the disadvantage of being very expensive and requires being used in large quantities.
- a new stripping composition comprising an aprotic polar solvent and an ether comprising one or more methoxy groups and having well-defined characteristics such as a flash point greater than 0 ° C. and a molar volume less than 160.
- anisole has an insufficient flash point in view of certain regulations, in particular those for the transport of flammable materials.
- the anisole has a very strong odor which implies the need to use an odor masking agent. There is therefore a need to supply an improved stripping composition on the market.
- the present invention aims to provide a composition for the stripping including paints characterized in that it comprises at least one aromatic ether comprising an alkoxy group having at least two carbon atoms and at least one polar aprotic solvent.
- the aromatic ether preferably has a flash point greater than or equal to 50 ° C.
- alkoxy is used in a generic manner since it also designates other ether groups as specified below.
- aromatic ethers suitable for the invention mention may be made of those corresponding more particularly to formula (I):
- R represents an alkyl, cycloalkyl or aralkyl radical having at least two carbon atoms, and preferably from 2 to 12 carbon atoms,
- - X represents a hydrogen atom, an alkyl or alkoxy radical having from 1 to 4 carbon atoms, a halogen atom, preferably a fluorine or chlorine atom.
- the ethers preferably used correspond to formula (I) in which R represents an alkyl, cycloalkyl or aralkyl radical having from 2 to 7 carbon atoms.
- those which are preferred comprise a radical R which represents an ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl and tert-butyl radical, a cyclohexyl radical, a benzyl radical or an alkoxy radical having from 1 to 4 carbon atoms and preferably from 2 to 4 carbon atoms such as ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, sec-butoxy, tert-butoxy
- X it represents more particularly a hydrogen atom, a fluorine atom, a methyl, ethyl, methoxy or ethoxy radical.
- the invention does not exclude the presence of several X, preferably at most equal to 3.
- aromatic ethers the following compounds may be mentioned, among others: - phenetole
- ether which can be used in the compositions according to the invention, it is preferred to use phenetole.
- the stripping compositions of the invention combine an ether as previously defined by the invention and an aprotic polar solvent.
- polar aprotic solvents examples include dimethylsulfoxide (DMSO), dimethylformamide (DMF), N-methyl-2-pyrolidone (NMP), N-methylmorpholine, ⁇ -butyrolactone, acetylacetone, acetonitrile and mixtures thereof.
- dimethyl sulfoxide is chosen.
- the object of the present invention is to propose a composition allowing the stripping of paints comprising, by volume:
- compositions of the invention therefore comprise at least, by volume: (D - from 20 to 80% of a polar aprotic solvent, and even more preferably from 50 to 70%,
- compositions according to the invention are given below:
- compositions according to the invention comprise: (D - from 1 to 90%, preferably from 20 to 80% and even more preferably from 50 to 70% of an aprotic polar solvent chosen from dimethylsulfoxide, dimethylformamide, N-methyl-2- pyrolidone, N-methylmorpholine, ⁇ -butyrolactone, acetylacetone, acetonitrile and their mixtures, (2) - from 1 to 90%, preferably from 20 to 80%, and more more preferably from 30 to 50% of phenetole.
- an aprotic polar solvent chosen from dimethylsulfoxide, dimethylformamide, N-methyl-2- pyrolidone, N-methylmorpholine, ⁇ -butyrolactone, acetylacetone, acetonitrile and their mixtures
- compositions according to the invention may also contain other conventional additives.
- additives there may be mentioned inter alia a co-solvent, a surfactant, a thickener, an activator, a corrosion inhibitor, an evaporation retarder or any other additive in the measurement where it does not occur. not a chlorinated solvent.
- a co-solvent generally makes it possible to increase the pickling performance of a composition by facilitating the dissolution of the plasticizers present in the paint.
- co-solvents it is possible to use a liquid, aliphatic or aromatic and odorless hydrocarbon-based solvent having a flash point greater than 50 ° C., preferably greater than 70 ° C. so that this solvent is not classified in the flammable liquids.
- solvents derived from petroleum and with a high flash point are in particular mineral spirits such as white spirit and naphthas.
- mineral spirits such as white spirit and naphthas.
- ISOPAR® from Exxon
- SOLTROL® from Shell
- HI-SOL® solvents from Ashland, in particular SOLVESSO® 100, 150 and 200.
- hydrocarbon derivatives being classified Xn are gradually replaced by solvents of the dialkyl ester type of an aliphatic diacid making it possible to avoid labeling Xn on the finished product.
- the mixture of diacid esters are esters derived essentially from adipic, glutaric and succinic acids, the alkyl groups of the ester part being especially chosen from methyl and ethyl groups, but may also be propyl, isopropyl, butyl, n-butyl and isobutyl.
- the C4 to Ce diacids above are in fact the by-products of the preparation of adipic acid which is one of the main monomers of polyamides, and the dialkyl esters are obtained by esterification of this by-product which generally contains by weight of 15 to 30% of succinic acid, of 50 to 75% of glutaric acid and of 5 to 25% of adipic acid.
- Diacid esters are commercially available products. As commercial products, there may be mentioned more particularly Rhodiasolv RPDE® marketed by the company Rhône-Poulenc and "Du Pont Dibasic Esters®" marketed by the Company Du Pont de Nemours.
- the quantity of co-solvent to be used it is recommended to use from 10 to 100 volumes, preferably from 30 to 60 volumes of the co-solvent per 100 volumes of (1) and (2).
- anionic surfactants facilitate rinsing with water of the compositions on the substrate to be stripped and, in certain cases, of accelerating the stripping action.
- anionic surfactants there may be mentioned anionic surfactants of the alkali metal soap type (alkaline salts of C8-C24 fatty acids), alkali sulfonates (C ⁇ -C 1 3 alkylbenzene sulfonates, alkylsulfonates in C12-C16), oxyethylenated and sulfated C6-C16 fatty alcohols, oxyethylenated and sulfated C8-C13 alkylphenols, alkali sulfosuccinates (C12-C16 alkylsutfosuccinates) ".
- nonionic surfactants there may be mentioned, inter alia, ethoxylated or ethoxy-propoxylated alkylphenols and ethoxylated or ethoxy-propoxylated fatty alcohols, ethoxylated or ethoxy-propoxylated triglycerides, ethoxylated or ethoxy-fatty acids propoxylated, ethoxylated or ethoxy-propoxylated sorbitan esters, ethoxylated or ethoxy-proproxylated amines, ethoxylated or ethoxy-propoxylated di (phenyl-ethyl) phenols, tri (1-ethyl phenyl) ethoxylated or ethoxylated phenols .
- the number of oxyethylene (OE) and or oxypropylene (OP) units of these nonionic surfactants usually varies from 2 to 100 depending on the HLB (hydrophilic / lipophilic balance) desired.
- the number of OE and / or OP units is between 2 and 50.
- the ethoxylated or ethoxy-propoxylated alkylphenols generally have 1 or 2 alkyl groups, linear or branched, having 4 to 12 carbon atoms, in particular octyl, nonyl or dodecyl.
- nonionic surfactants By way of examples of preferred nonionic surfactants, mention may be made of ethoxylated nonylphenol with 2 to 9 ethylene oxide units.
- the ethoxylated or ethoxy-propoxylated fatty alcohols generally have from 6 to 22 carbon atoms, the OE and OP units being excluded from these numbers, and are preferably ethoxylated.
- the ethoxylated or ethoxy-propoxylated triglycerides can be triglycerides of plant or animal origin (such as lard, tallow, peanut oil, butter oil, cottonseed oil, oil flaxseed, olive oil, palm oil, grape seed oil, fish oil, soybean oil, castor oil, rapeseed oil, coconut oil, coconut oil), and are preferably ethoxylated.
- ethoxylated triglyceride is used in the present invention to cover both the products obtained by ethoxylation of a triglyceride with ethylene oxide and those obtained by transesterification of a triglyceride with a polyethylene glycol.
- the ethoxylated or ethoxy-propoxylated fatty acids are esters of fatty acids (such as for example oleic acid, stearic aid) and are preferably ethoxylated.
- ethoxylated fatty acid includes both the products obtained by ethoxylation of a fatty acid with ethylene oxide as well as those obtained by esterification of a fatty acid with a polyethylene glycol.
- Ethoxylated or ethoxy-propoxylated sorbitan esters are cyclized sorbitol esters of C- fatty acids
- Ethoxylated or ethoxy-proproxylated fatty amines generally have from 10 to 22 carbon atoms, the OE and OP units being excluded from these numbers, and are preferably ethoxylated.
- the surfactant (s) may be used at a content which may for example be between 0.1 and 10%, preferably 0.5 and 5% by weight relative to the total weight of the composition.
- compositions of the invention contain thickening agents so that the composition can be applied to vertical surfaces.
- thickening agents can be used such as, for example, cellulose derivatives (ethylcellulose, hydroxypropycellulose), xanthan gums, guar, carob, alginates, polyacrylates, starches, modified starches and modified clays.
- the thickening agents are preferably used at a content of between 0.5 and 10% by weight relative to the total weight of the composition, preferably between 1 and 3%.
- an activator it is possible to add an activator. It is a small polar molecule that will help break the adhesive bonds between the paint film and the substrate.
- an activator it is a small polar molecule that will help break the adhesive bonds between the paint film and the substrate.
- amine preferably triethanolamine (TEA).
- the activators are preferably used at a content of between 0.5 and 2% by weight relative to the total weight of the composition, preferably around 1%.
- the stripping compositions can also contain, for example, corrosion inhibitors, preferably triethylammonium phosphate or sodium benzoate; evaporation retarders, for example greases by affinics having a melting point between 46 and 57 ° C; abrasive particles chosen from aluminum oxide, silica, silicon carbide, tungsten carbide and silicon carbide.
- corrosion inhibitors preferably triethylammonium phosphate or sodium benzoate
- evaporation retarders for example greases by affinics having a melting point between 46 and 57 ° C
- abrasive particles chosen from aluminum oxide, silica, silicon carbide, tungsten carbide and silicon carbide.
- compositions according to the invention allow the paint stripping.
- paints is used generically. It designates any coating of a polymeric nature deposited on a support and more particularly, paints strictly speaking, varnishes and plastic resins.
- compositions are more particularly applicable in the case of glycerophthalic, polyurethane, acrylic, alkyd-urethane, acrylic-polyurethane and epoxy paints.
- the paints are preferably paints used in the household and industrial sector, in particular the building industry.
- the substrates to be cleaned or pickled can be very varied in nature.
- wood The most common are wood; metals and their alloys such as steel, stainless steel, aluminum, copper, iron; plastics and mineral glasses.
- compositions comprising phenetole and DMSO and / or DMF and / or NMP are used to strip paints, preferably of polyester or polyurethane type.
- the subject of the invention is also a process for stripping paints from substrates, characterized in that said paints are brought into contact with a composition according to the present invention.
- the compositions according to the invention can be prepared at ambient temperature (generally 5 to 25 ° C.), by simple mixing of the various components, using an agitator or any other suitable device.
- the stripping process is carried out by bringing the object or surface to be stripped into contact with the composition according to the present invention.
- Contacting the object or surface to be stripped with the composition according to the present invention can be done by various means. Among these means, we can mention immersion, spraying, coating with a brush.
- the contacting is carried out at a temperature between 5 and 25 ° C., that is to say at ambient temperature.
- the contact time is between 15 and 120 minutes.
- the invention provides a stripping composition preferably comprising phenetole associated with a polar aprotic solvent.
- phenetole has several advantages, that is to say, for very honorable performance, to improve the odor problems encountered during the use of the DMSO / anisole mixture and to increase the flash point of the mixture.
- composition of the invention is therefore free from chlorinated solvents and is stable on storage for at least one year.
- the stripping power of phenetole-based formulations is equivalent to anisole-based formulations.
- Formulations based on phenetole are significantly less fragrant than those based on anisole. This avoids the use of masking agents in the final formulation.
- the use of phenetole in pickling formulations makes it possible to increase the flash point compared to anisole.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/600,562 US6358901B1 (en) | 1998-01-21 | 1999-01-20 | Paint stripping composition |
| JP2000528635A JP2002501104A (ja) | 1998-01-21 | 1999-01-20 | ペイント剥離組成物 |
| AU20607/99A AU2060799A (en) | 1998-01-21 | 1999-01-20 | Paint stripping composition |
| BR9907014-6A BR9907014A (pt) | 1998-01-21 | 1999-01-20 | Composição permitindo notadamente a decapagem de tintas, processos de preparação das mesmas, e, de decapagem de um revestimento depositado sobre um substrato |
| EP99900969A EP1049749A1 (fr) | 1998-01-21 | 1999-01-20 | Composition pour decaper les peintures |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9800607A FR2773812B1 (fr) | 1998-01-21 | 1998-01-21 | Composition pour decaper les peintures a base d'un ether aromatique |
| FR98/00607 | 1998-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999037726A1 true WO1999037726A1 (fr) | 1999-07-29 |
Family
ID=9521989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1999/000111 Ceased WO1999037726A1 (fr) | 1998-01-21 | 1999-01-20 | Composition pour decaper les peintures |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6358901B1 (fr) |
| EP (1) | EP1049749A1 (fr) |
| JP (1) | JP2002501104A (fr) |
| AU (1) | AU2060799A (fr) |
| BR (1) | BR9907014A (fr) |
| FR (1) | FR2773812B1 (fr) |
| WO (1) | WO1999037726A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7291144B2 (en) | 1998-03-31 | 2007-11-06 | Innercool Therapies, Inc. | Method and device for performing cooling- or cryo-therapies for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation |
| JP2013133636A (ja) * | 2011-12-26 | 2013-07-08 | Shimizu Corp | 有機系材料の仕上げ材の撤去方法 |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030125226A1 (en) * | 2000-11-28 | 2003-07-03 | Lewis Paul F. | Anti-slip floor coating remover composition |
| CA2331439C (fr) * | 2001-01-19 | 2007-01-02 | E.Q.U.I.P. International Inc. | Decapant pour peinture et methode d'utilisation |
| US6624128B1 (en) * | 2001-03-30 | 2003-09-23 | Dixie Chemical Company | Water miscible composition containing a carboxylic acid diester and a fatty acid salt |
| CN1906283A (zh) * | 2003-12-16 | 2007-01-31 | 索鲁科普工业有限公司 | 重金属补救脱漆剂 |
| US7786062B2 (en) * | 2004-02-20 | 2010-08-31 | Basf Coatings Gmbh | Purge solution |
| WO2006026784A1 (fr) * | 2004-09-01 | 2006-03-09 | Applied Chemical Technologies, Inc. | Procedes et compositions permettant d'eliminer la peinture |
| US7531049B2 (en) * | 2005-02-10 | 2009-05-12 | Danny P. Tepolt | Composition and method using same to remove urethane products from a substrate |
| ITVA20060017A1 (it) * | 2006-04-07 | 2007-10-08 | Lamberti Spa | Composizioni svernicianti contenenti idrossipropil guar |
| FR2915997B1 (fr) * | 2007-05-07 | 2009-07-03 | Rhodia Recherches & Tech | Traitement anti-graffitis. |
| CN103282478B (zh) * | 2010-12-15 | 2014-12-10 | 罗地亚(中国)投资有限公司 | 氟聚合物组合物 |
| WO2012079231A1 (fr) * | 2010-12-15 | 2012-06-21 | Rhodia (China) Co., Ltd. | Compositions de polymère fluoré |
| IN2014DN09065A (fr) * | 2012-04-16 | 2015-05-22 | Rhodia Operations | |
| US9987212B2 (en) * | 2015-06-04 | 2018-06-05 | L'oréal | Acetone-deficient composition |
| CN105514441B (zh) * | 2016-01-28 | 2017-12-01 | 马莉 | 一种聚偏氟乙烯助剂组合物 |
| CN112585223B (zh) * | 2018-08-30 | 2022-12-06 | 株式会社尼欧斯 | 涂膜去除剂组合物及用于去除涂膜的方法 |
| US20240166917A1 (en) * | 2022-11-09 | 2024-05-23 | Illinois Tool Works Inc. | Sealant remover |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3179609A (en) * | 1958-09-25 | 1965-04-20 | Union Carbide Corp | Finish removal formulation |
| US5011621A (en) * | 1990-06-04 | 1991-04-30 | Arco Chemical Technology, Inc. | Paint stripper compositions containing N-methyl-2-pyrrolidone and renewable resources |
| EP0573339A1 (fr) * | 1992-06-02 | 1993-12-08 | Elf Atochem S.A. | Composition pour décaper les peintures |
-
1998
- 1998-01-21 FR FR9800607A patent/FR2773812B1/fr not_active Expired - Fee Related
-
1999
- 1999-01-20 JP JP2000528635A patent/JP2002501104A/ja not_active Withdrawn
- 1999-01-20 US US09/600,562 patent/US6358901B1/en not_active Expired - Fee Related
- 1999-01-20 EP EP99900969A patent/EP1049749A1/fr not_active Ceased
- 1999-01-20 BR BR9907014-6A patent/BR9907014A/pt not_active Application Discontinuation
- 1999-01-20 WO PCT/FR1999/000111 patent/WO1999037726A1/fr not_active Ceased
- 1999-01-20 AU AU20607/99A patent/AU2060799A/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3179609A (en) * | 1958-09-25 | 1965-04-20 | Union Carbide Corp | Finish removal formulation |
| US5011621A (en) * | 1990-06-04 | 1991-04-30 | Arco Chemical Technology, Inc. | Paint stripper compositions containing N-methyl-2-pyrrolidone and renewable resources |
| EP0573339A1 (fr) * | 1992-06-02 | 1993-12-08 | Elf Atochem S.A. | Composition pour décaper les peintures |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7291144B2 (en) | 1998-03-31 | 2007-11-06 | Innercool Therapies, Inc. | Method and device for performing cooling- or cryo-therapies for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation |
| JP2013133636A (ja) * | 2011-12-26 | 2013-07-08 | Shimizu Corp | 有機系材料の仕上げ材の撤去方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1049749A1 (fr) | 2000-11-08 |
| FR2773812A1 (fr) | 1999-07-23 |
| JP2002501104A (ja) | 2002-01-15 |
| AU2060799A (en) | 1999-08-09 |
| FR2773812B1 (fr) | 2001-07-06 |
| BR9907014A (pt) | 2000-10-17 |
| US6358901B1 (en) | 2002-03-19 |
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