CS272977B1 - Cleaning agent with anticorrosive effect - Google Patents
Cleaning agent with anticorrosive effect Download PDFInfo
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- CS272977B1 CS272977B1 CS2188A CS2188A CS272977B1 CS 272977 B1 CS272977 B1 CS 272977B1 CS 2188 A CS2188 A CS 2188A CS 2188 A CS2188 A CS 2188A CS 272977 B1 CS272977 B1 CS 272977B1
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- 239000012459 cleaning agent Substances 0.000 title claims abstract description 13
- 230000000694 effects Effects 0.000 title abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 239000004327 boric acid Substances 0.000 claims abstract description 9
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 8
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 8
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 claims abstract description 7
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 claims abstract description 5
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011975 tartaric acid Substances 0.000 claims abstract description 4
- 235000002906 tartaric acid Nutrition 0.000 claims abstract description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims abstract description 3
- 239000002253 acid Substances 0.000 claims abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract 2
- 239000007795 chemical reaction product Substances 0.000 claims abstract 2
- 150000002148 esters Chemical class 0.000 claims abstract 2
- 239000003599 detergent Substances 0.000 claims description 5
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- WXHLLJAMBQLULT-UHFFFAOYSA-N 2-[[6-[4-(2-hydroxyethyl)piperazin-1-yl]-2-methylpyrimidin-4-yl]amino]-n-(2-methyl-6-sulfanylphenyl)-1,3-thiazole-5-carboxamide;hydrate Chemical compound O.C=1C(N2CCN(CCO)CC2)=NC(C)=NC=1NC(S1)=NC=C1C(=O)NC1=C(C)C=CC=C1S WXHLLJAMBQLULT-UHFFFAOYSA-N 0.000 claims 1
- PXRKCOCTEMYUEG-UHFFFAOYSA-N 5-aminoisoindole-1,3-dione Chemical compound NC1=CC=C2C(=O)NC(=O)C2=C1 PXRKCOCTEMYUEG-UHFFFAOYSA-N 0.000 claims 1
- 239000003945 anionic surfactant Substances 0.000 claims 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims 1
- 229940092714 benzenesulfonic acid Drugs 0.000 claims 1
- 239000004094 surface-active agent Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 125000000129 anionic group Chemical group 0.000 abstract description 2
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 5
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- YASYEJJMZJALEJ-UHFFFAOYSA-N Citric acid monohydrate Chemical compound O.OC(=O)CC(O)(C(O)=O)CC(O)=O YASYEJJMZJALEJ-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229960002303 citric acid monohydrate Drugs 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- WPTFZDRBJGXAMT-UHFFFAOYSA-N 4-nonylbenzenesulfonic acid Chemical compound CCCCCCCCCC1=CC=C(S(O)(=O)=O)C=C1 WPTFZDRBJGXAMT-UHFFFAOYSA-N 0.000 description 1
- YCPXWRQRBFJBPZ-UHFFFAOYSA-N 5-sulfosalicylic acid Chemical compound OC(=O)C1=CC(S(O)(=O)=O)=CC=C1O YCPXWRQRBFJBPZ-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
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 125000005619 boric acid group Chemical group 0.000 description 1
- 150000004653 carbonic acids Chemical class 0.000 description 1
- 229960004106 citric acid Drugs 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000014666 liquid concentrate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000004667 medium chain fatty acids Chemical class 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000005624 silicic acid group Chemical group 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Substances [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- -1 sodium sulfonated butyl oleic acid sodium salt Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
Abstract
Description
Vynález sa týká přípravy a použítia čistiaceho prostriedku s protikoróznym účinkom, ktorý je vhodný na čistenie a krátkodobá konzerváciu kovových povrchov, najma ložiskových krúžkov. Ložiskové krúžky sa v prevažnej miere čistia v prostředí vodných roztokov alkalických solí kyseliny fosforečnej, křemičitéj a uhličitéj, zásad alkalických kovov, v niektorých případoch aj s přísadou alkalických dusitanov.The present invention relates to the preparation and use of a corrosion-resistant cleaning agent suitable for the cleaning and short-term preservation of metal surfaces, in particular bearing rings. The bearing rings are largely cleaned in an environment of aqueous solutions of alkali salts of phosphoric, silicic and carbonic acids, alkali metal bases, in some cases with the addition of alkali nitrites.
Na zvýšenie účinku a oplachovatelnosti obsahujú pracie prostriedky, povrchovoaktívne a komplexotvorné látky.They contain detergents, surfactants and complexing agents to increase the effect and rinsability.
Vyššie uvedené zmeai majú najlepŽie čiatiace účinky pri vyšších teplotách 60 až 95 °C, čím sa predlžujú medzioperačné časy, pretože horúce súčastky sa před meracími a kontrolnými operáciami musia temperovat’. Pri nižších teplotách sa ich čistiaca a odmasťovaeia účinnosť značné zhoršuje. Čalšou nevýhodou alkalických pracích prostriedkov je, že na povrchu čištěných polotovarov zanechávajú odparky, čo je v případe ložiskových súčastok nepřípustné. Preto neoddeliteíným stupňom čistenia ložiskových súčiastok alkalickými čiatiacimi prostriedkami je oplach pracieho prostriedku vodou alebo zmesou vody a trietanolamíhu a následná medzioperačná konzervácia, ktorá má zabezpečit bezkorózny stav súčiastok počas minimálně 7 dní. Na tento účel Ba najčastejšie používajú zmesi tvořené koncentrátom brúsnej kvapaliny, trietanolamínu, uhličitanu a dusitanu sodného. Vyššie spomenuté nevýhody alkalických čistiacích proatriedkov majú dopad aj na tvorbu a ochranu životného a pracovného prostredia - zvyšovanie soínosti a toxičnoati odpadných vod, připadne zvyšovanie nákladov na čistenie odpádných vod.The aforementioned mixtures have the best cleaning effects at higher temperatures of 60 to 95 ° C, thereby prolonging the in-process times, since hot components must be tempered prior to measurement and control operations. At lower temperatures their cleaning and degreasing performance is considerably impaired. A further disadvantage of alkaline detergents is that they leave evaporators on the surface of the cleaned products, which is unacceptable in the case of bearing components. Therefore, an inseparable step of cleaning the bearing components with alkaline cleaning agents is to rinse the detergent with water or a mixture of water and triethanolamide, and then to preserve the parts in a non-corrosive condition for at least 7 days. For this purpose, Ba most commonly used mixtures consisting of an abrasive liquid concentrate, triethanolamine, sodium carbonate and nitrite. The above-mentioned disadvantages of alkaline cleaning agents also have an impact on the creation and protection of the environment and the working environment - increasing the salinity and wastewater toxicities, or increasing the costs of wastewater treatment.
Uvedené nedostatky rieši Čistiaci prostriedok s protikoróznym účinkom, ktorý je vhodný na čistenie a súcasne krátkodobá konzerváciu kovových povrchov, najma ložiskových krúžkov podía vynálezu, ktorého podstatou je, že obsahuje 5 až 50 % hmotnostných reakčnóho produktu kyseliny boritej, dietanolamínu, kyseliny citrónovej alebo vinnej vzatých v molovom pomere 1 až 6:1 až 9:0,5 až 3,5, ktorý vznikne v prostředí polyetylénglykolu o strednej molekulovej hmotnosti 200 až 1000 alebo mono-, alebo dialebo tripropylenglykolu alebo zmeai týchto látok a vody pri teplote 50 až 120 °C a zvyšok do 100 % tvoří voda. Čistiaci proatriedok može áalej obsahovat kyselinu benzsulfónovú alebo toluensulfónovú alebo sulfosalicylovú alebo alkylbenzensulfónovú alebo kysly ester kyseliny sírovej alebo fosforečnej v mnozatve odpovídajúcom mólovému poměru 0,5 až 3,5 voči použitej kyselina boritej. Čalšou podstatou je, že obsah polystylénglykolu alebo mono, alebo di-, alebo tripropylénglykolu alebo zmeai týchto látok je 45 až 75 % hmotnostných a obsah vody, včxtane vody vzniknutéj.reakciou je 5 až 45 % hmotnostných. Salšou podstatou čistiaceho prostriedku je, že obsahuje.The aforementioned drawbacks are solved by an anti-corrosion cleaning agent which is suitable for cleaning and at the same time short-term preservation of metal surfaces, in particular bearing rings according to the invention, which comprises 5 to 50% by weight of boric acid, diethanolamine, citric acid or tartaric acid in a molar ratio of 1 to 6: 1 to 9: 0.5 to 3.5, which is produced in the medium of polyethylene glycol of an average molecular weight of 200 to 1000 or of mono- or dialbe tripropylene glycol or a mixture of these substances and water at 50 to 120 ° C and the remainder to 100% is water. The cleaning composition may further comprise benzsulfonic or toluenesulfonic acid or sulfosalicylic or alkylbenzenesulfonic acid or sulfuric or phosphoric acid esters in an amount corresponding to a molar ratio of 0.5 to 3.5 relative to the boric acid used. It is a further object that the content of polystyrene glycol or mono or di- or tripropylene glycol or a mixture thereof is 45-75% by weight and the water content, including the reaction water, is 5-45% by weight. A salerity of the cleaning composition is that it contains.
0,5 až 25 % hmotnostných neiónových tenzidov a 0,5 až 15 % hmotnostných aniónaktív- . nych tenzidov.0.5 to 25% by weight nonionic surfactants and 0.5 to 15% by weight anionic. surfactants.
Čistiaci prostriedok podlá vynálezu sa aplikuje v koncentrácii 0,2 až 5 % hmotnostných počítaných na aktivně zložky v pitnej alebo technologickej vodě při teplote miestnosti až 80 °C. Doba Čistenia je 1 až 6 minút. Na čistenom povrchu sá po vysušení vytvoří prakticky suchý, nelepivý, transparentný film, ktorý ohřáni.čištěné súčiastky před atmosferickou koróziou po dobu 7 až 30 dní. G-istiacira prostriedkóm možno čistit* kovové povrchy znečistěné prachom, zvyškarai režných kvapalín,- připadne zmesou mechanických a olejových nečistot a m8že sa použiť aj na krátkodobá konzerváciu iným sposobom vyčištěných kovových súčiastok.The cleaning composition according to the invention is applied at a concentration of 0.2 to 5% by weight, calculated on the active ingredients, in drinking or process water at a room temperature of up to 80 ° C. The cleaning time is 1 to 6 minutes. After drying, they form a virtually dry, non-sticky, transparent film on the surface to be cleaned, which heats the cleaned parts from atmospheric corrosion for 7 to 30 days. The cleaning agent can be used to clean metal surfaces contaminated with dust, to remove fine liquids, optionally with a mixture of mechanical and oil impurities, and can also be used for short-term preservation by other means of cleaned metal parts.
Postup přípravy čistiaceho prostriedku podía vynálezu je objasněný príkladmi, ktoré predmet vynálezu neobmedzuju.The process for preparing the detergent composition of the present invention is illustrated by the following non-limiting examples.
Příklad 1.Example 1.
Do zmiešavacej nádoby' sa předloží 200 g polyetylénglykolu o strednej molekulovej hmotnosti 300 a 50 g monopropylénglykolu, Zmes sa vyhřeje za miešania na 100 °C, přidá sa200 g of polyethylene glycol having an average molecular weight of 300 and 50 g of monopropylene glycol are introduced into the mixing vessel. The mixture is heated to 100 [deg.] C. while stirring.
CS 272977 Bl g kyseliny boritej a 105 g dietanolamínu a zmes sa nechá reagovať při teplote 120 °C po dobu 2,5 hodiny. Potom aa ku zmesi přidá 106 g kyseliny citrónovej-monohydrát a 478 g vody. Zmes sa zhomogenizuje a výsledkom je čiatiaci prostriedok, ktorý sa aplikuje v koncentrácii 20 až 50 g na liter roztoku.CS 272977 B1 g of boric acid and 105 g of diethanolamine and the mixture was allowed to react at 120 ° C for 2.5 hours. Then, 106 g of citric acid monohydrate and 478 g of water are added to the mixture. The mixture is homogenized to give a cleaning agent which is applied at a concentration of 20 to 50 g per liter of solution.
Příklad 2.Example 2.
Do zmiešavacej nádoby sa předloží 100 g polyetylénglykolu o m.h. 1000 a 400 g tripropylénglykolu a zmes sa za miešania vyhřeje na 100 °0. Potom sa ku zmesi přidá 36,6 g kyseliny boritej a 94,5 g dietanolamínu. Zmes sa vyhřeje na 115 °C a ponechá sa reagovat 4 hodiny. Potom sa zmes ochladí na 80^10 °C, přidá sa 30 ml vody a 7,5 g kyseliny vinnéj. Po 30 minútovej bomogenizácii sa ku zmesi přidá 109 g kyseliny nonylbenzensulfónovej. Po zhomogenizovaní sa ku zmesi přidá 50 g stearylalkoholu oxietylovaného 20 molmi etylénoxidu, 120 g kopolyméru etylénoxidu s propylénoxidom, ktorý obsahuje 20 % hmot.' etylénoxidu a 33 g sódnej soli sulfonovaného butylesteru kyseliny olejovej. Výsledkom je čistiaci proatriedok, ktorý ss aplikuje v koncentrácii 20 až 60 g na liter roztoku.100 g of polyethylene glycol of MW are added to the mixing vessel. 1000 and 400 g of tripropylene glycol and the mixture is heated to 100 ° C with stirring. Then, 36.6 g of boric acid and 94.5 g of diethanolamine are added to the mixture. The mixture was heated to 115 ° C and allowed to react for 4 hours. The mixture is then cooled to 80 DEG-10 DEG C., 30 ml of water and 7.5 g of tartaric acid are added. After 30 minutes of bomogenization, 109 g of nonylbenzenesulfonic acid are added to the mixture. After homogenization, 50 g of stearyl alcohol oxyethylated with 20 moles of ethylene oxide, 120 g of a copolymer of ethylene oxide with propylene oxide, containing 20% by weight, are added to the mixture. ethylene oxide and 33 g of sodium sulfonated butyl oleic acid sodium salt. The result is a cleaning agent which is applied at a concentration of 20 to 60 g per liter of solution.
Příklad 3.Example 3.
Do zmiešavacej nádoby sa předloží 150 g monopropylénglykolu a 200 g polyetylénglykolu o strednej molekulovej hmotnosti 300°, zmes sa vyhraje na 105 °C, přidá sa 48,8 kyseliny boritej a 189 dietanolamínu. Zmes sa ponechá 5 hodin homogenizovať a potom sa přidá 110 g vody a 10,5 g monohydrátu kyseliny citrónovej, zmes sa schladí na 50 °C a přidá sa 191 g sulfátovaného vyššieho mastného alkoholu o strednej dťžke uhlovodíkového reťazca 0χ2 oxietylovaného šiestirai mólmi etylénoxidu. Po zhomogenizovaní sa ku zmesi přidá 50 g kopolyméru etylénoxidu s propylénoxidom, ktorý obsahuje 70 % hmotnostných etylénoxidu a 50 g sódnej soli sulfátovaného oxietylovaného alkoholu. Výsledkom je čistiaci proatriedok, ktorý sa aplikuje v koncentrácii 15 až 50 g na liter roztoku.150 g of monopropylene glycol and 200 g of polyethylene glycol having an average molecular weight of 300 [deg.] Are introduced into the mixing vessel, the mixture is heated to 105 [deg.] C. and 48.8 boric acid and 189 diethanolamine are added. The mixture is allowed to homogenize for 5 hours and then 110 g of water and 10.5 g of citric acid monohydrate are added, the mixture is cooled to 50 ° C and 191 g of sulphated medium chain fatty acid OC 2 oxethylated with six moles of ethylene oxide is added. After homogenization, 50 g of ethylene oxide-propylene oxide copolymer containing 70% by weight of ethylene oxide and 50 g of sodium sulfated oxethylated alcohol are added to the mixture. The result is a cleaning composition which is applied at a concentration of 15 to 50 g per liter of solution.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS2188A CS272977B1 (en) | 1988-01-03 | 1988-01-03 | Cleaning agent with anticorrosive effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS2188A CS272977B1 (en) | 1988-01-03 | 1988-01-03 | Cleaning agent with anticorrosive effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS2188A1 CS2188A1 (en) | 1990-07-12 |
| CS272977B1 true CS272977B1 (en) | 1991-02-12 |
Family
ID=5331649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS2188A CS272977B1 (en) | 1988-01-03 | 1988-01-03 | Cleaning agent with anticorrosive effect |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS272977B1 (en) |
-
1988
- 1988-01-03 CS CS2188A patent/CS272977B1/en unknown
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| Publication number | Publication date |
|---|---|
| CS2188A1 (en) | 1990-07-12 |
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| SU1004463A1 (en) | Detergent for cleaning metal surface |