CN103695918A - Water-soluble inter-process antirust liquid and preparation method thereof - Google Patents
Water-soluble inter-process antirust liquid and preparation method thereof Download PDFInfo
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- CN103695918A CN103695918A CN201310617889.3A CN201310617889A CN103695918A CN 103695918 A CN103695918 A CN 103695918A CN 201310617889 A CN201310617889 A CN 201310617889A CN 103695918 A CN103695918 A CN 103695918A
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- antirust liquid
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- nano titanium
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- 239000007788 liquid Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title abstract 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000002265 prevention Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- CCJAYIGMMRQRAO-UHFFFAOYSA-N 2-[4-[(2-hydroxyphenyl)methylideneamino]butyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCCN=CC1=CC=CC=C1O CCJAYIGMMRQRAO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000001336 alkenes Chemical class 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 7
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 7
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- DYUWTXWIYMHBQS-UHFFFAOYSA-N n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCNCC=C DYUWTXWIYMHBQS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 7
- 239000004160 Ammonium persulphate Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- SSOONFBDIYMPEU-UHFFFAOYSA-N [3-hydroxy-2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propyl] prop-2-enoate Chemical compound OCC(CO)(CO)COCC(CO)(CO)COC(=O)C=C SSOONFBDIYMPEU-UHFFFAOYSA-N 0.000 claims description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 6
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 claims description 3
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 235000006040 Prunus persica var persica Nutrition 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 3
- -1 octadecanol ester Chemical class 0.000 claims description 3
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 claims description 3
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 3
- 229920000053 polysorbate 80 Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 claims description 3
- 240000006413 Prunus persica var. persica Species 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000178 monomer Substances 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 230000003405 preventing effect Effects 0.000 abstract description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000010409 thin film Substances 0.000 abstract 2
- LXAHHHIGZXPRKQ-UHFFFAOYSA-N 5-fluoro-2-methylpyridine Chemical compound CC1=CC=C(F)C=N1 LXAHHHIGZXPRKQ-UHFFFAOYSA-N 0.000 abstract 1
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 abstract 1
- 241000779819 Syncarpia glomulifera Species 0.000 abstract 1
- MPIAGWXWVAHQBB-UHFFFAOYSA-N [3-prop-2-enoyloxy-2-[[3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propoxy]methyl]-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C MPIAGWXWVAHQBB-UHFFFAOYSA-N 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 239000002738 chelating agent Substances 0.000 abstract 1
- 235000012343 cottonseed oil Nutrition 0.000 abstract 1
- 239000002385 cottonseed oil Substances 0.000 abstract 1
- 230000032798 delamination Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000001739 pinus spp. Substances 0.000 abstract 1
- 239000001587 sorbitan monostearate Substances 0.000 abstract 1
- 229940035048 sorbitan monostearate Drugs 0.000 abstract 1
- 235000011076 sorbitan monostearate Nutrition 0.000 abstract 1
- 229940036248 turpentine Drugs 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 8
- 230000003449 preventive effect Effects 0.000 description 3
- 244000144730 Amygdalus persica Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- YTGKHEDTLHRZGX-RWSKJCERSA-N n-(cyclopentylmethyl)-n-[(2s)-3-[(3s,5r)-3,5-dibenzyl-2-oxopyrrolidin-1-yl]-2-hydroxypropyl]-4-methoxybenzenesulfonamide Chemical compound C1=CC(OC)=CC=C1S(=O)(=O)N(CC1CCCC1)C[C@@H](O)CN1C(=O)[C@@H](CC=2C=CC=CC=2)C[C@@H]1CC1=CC=CC=C1 YTGKHEDTLHRZGX-RWSKJCERSA-N 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical class [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
The invention discloses a water-soluble inter-process antirust liquid which is prepared from the following raw materials in parts by weight: 4-6 parts of sulfurized olefin cottonseed oil, 4-5 parts of turpentine, 1-2 parts of bis-octadecanol ester, 1-2 parts of diallylamine, 0.5-1 part of nano titanium dioxide, 6-9 parts of polyvinyl pyrrolidone, 1-2 parts of phosphoric acid, 10-15 parts of N-hydroxymethyl acrylamide, 8-15 parts of dipentaerythritol hexaacrylate, 1-2 parts of sorbitan monostearate, 1-2 parts of a dispersant MF, 1-2 parts of EDTA disodium, 4-5 parts of an auxiliary agent, and 300 parts of water. With use of various organic high-molecular polymer monomers and the chelating agent, the antirust liquid can form a thin film on the surface of a metal, thereby playing roles in isolating air and preventing oxidation; through use of nano titanium dioxide, the antirust liquid has good dispersion, is easy to coat, and has no delamination; the antirust liquid allows the thin film to be easy to clear up, is applicable to inter-process rust prevention for metal processing, has simple operation, at the same time, can decontaminate, remove rust and lubricate, and facilitates a next step process.
Description
Technical field
The present invention relates to antirust technology field, relate in particular to a kind of water-soluble rust prevention during manufacture liquid and preparation method thereof.
Background technology
Metallic surface is antirust is the important topic in industrial production, and traditional rust protection liquid, slushing oil have advantage also to have shortcoming.In common aqueous rust preventive, containing a large amount of Sodium Nitrites, there is carinogenicity, be unfavorable for that environmental protection and the person are healthy, and adopt wetting Agent for Printing Inks to extend the life-span of aqueous rust preventive, bring again the disadvantage of touching with one's hand, being covered with dust, and can not be antirust for a long time; Although it is antirust for a long time that general hard film rust preventive oil is applicable to, film forming is also transparent attractive in appearance, and water white resin kind is less, and unstable also easy oxidation discoloration, also needs organic solvent dissolution, brings inflammable and explosive danger to be also unfavorable for environmental protection and health; General slushing oil is used mineral oil, difficult degradation, and also can bring the problem of oil removing difficulty when antirust for short-term.Therefore, comprehensive study performance is more excellent, and the antirust product being more applicable to for different occasion research is new direction and trend.
Summary of the invention
The object of the present invention is to provide a kind of water-soluble rust prevention during manufacture liquid and preparation method thereof, this rust protection liquid has the feature of favorable rust preventing effect, easy and simple to handle, easy cleaning.
Technical scheme of the present invention is as follows:
A water-soluble rust prevention during manufacture liquid, is characterized in that being made by the raw material of following weight part: sulfurized olefin cotton oil 4-6, turps 4-5, two octadecanol ester 1-2, diallyl amine 1-2, nano titanium oxide 0.5-1, polyvinyl pyrrolidone 6-9, phosphatase 11-2, N hydroxymethyl acrylamide 10-15, dipentaerythritol acrylate 8-15, the smooth monostearate 1-2 of sorb, Dispersant MF 1-2, EDETATE SODIUM 1-2, auxiliary agent 4-5, water 300.Described auxiliary agent is made by the raw material of following weight part: polyoxyethylene sorbitan monooleate 2-3, nano titanium oxide 0.1-0.2, sodium bicarbonate 1-2, diethanolamine 2-3, carboxymethyl cellulose 2-3, polyvinyl alcohol 1-2, peach gum 1-2, water glass 1-2, urea 3-4, ammonium persulphate 1-2, water 20-24; Preparation method be ammonium persulphate is water-soluble after, then add other leftover materials, stir 10-15 minute, be heated to 70-80 ℃, stirring reaction 1-2 hour, obtains.
The preparation method of described water-soluble rust prevention during manufacture liquid, is characterized in that comprising the following steps: water, the smooth monostearate of sorb, Dispersant MF are mixed, be heated to 40-50 ℃; Add sulfurized olefin cotton oil, turps, N hydroxymethyl acrylamide, dipentaerythritol acrylate, polyvinyl pyrrolidone, continue to be heated to 85-90 ℃, stir 10-15 minute; Add other remaining components, continue to stir 15-20 minute, obtain.
Beneficial effect of the present invention
The present invention uses multiple organic high molecular polymer monomer and sequestrant, can form film in metallic surface, plays isolated air, anti-oxidation effect; By using nano titanium oxide, make rust protection liquid good dispersity, easily application, not stratified; Rust protection liquid film easy-clear of the present invention, washing is fallen, and has no side effect, and is applicable to the rust prevention during manufacture of metal processing, easy and simple to handle, saves time, and can decontamination eliminate rust simultaneously, lubricated, facilitates next step operation to carry out.
Embodiment
A water-soluble rust prevention during manufacture liquid, by following weight part (kilogram) raw material make: sulfurized olefin cotton oil 5, turps 4.5, two octadecanol ester 1.5, diallyl amine 1.5, nano titanium oxide 0.7, polyvinyl pyrrolidone 7, phosphatase 11 .5, N hydroxymethyl acrylamide 13, dipentaerythritol acrylate 12, the smooth monostearate 1.5 of sorb, Dispersant MF 1.5, EDETATE SODIUM 1.5, auxiliary agent 4.5, water 300.Described auxiliary agent by following weight part (kilogram) raw material make: polyoxyethylene sorbitan monooleate 2, nano titanium oxide 0.1, sodium bicarbonate 2, diethanolamine 2, carboxymethyl cellulose 3, polyvinyl alcohol 2, peach gum 1, water glass 2, urea 3, ammonium persulphate 1, water 20; Preparation method be ammonium persulphate is water-soluble after, then add other leftover materials, stir 10-15 minute, be heated to 70-80 ℃, stirring reaction 1-2 hour, obtains.
The preparation method of described water-soluble rust prevention during manufacture liquid, comprises the following steps: water, the smooth monostearate of sorb, Dispersant MF are mixed, be heated to 45 ℃; Add sulfurized olefin cotton oil, turps, N hydroxymethyl acrylamide, dipentaerythritol acrylate, polyvinyl pyrrolidone, continue to be heated to 88 ℃, stir 13 minutes; Add other remaining components, continue to stir 17 minutes, obtain.
The water-soluble rust prevention during manufacture liquid that this embodiment obtains detects by national standard, and humid heat test * (1) is qualified; Salt water immersion test * (1): qualified; Corrosion test * (2): qualified; Rust removability (inferior) < 6.Prepared water-soluble rust prevention during manufacture liquid is brushed on the steel matrix surface of being newly processed into and there is no greasy dirt, be placed in and within indoor 20 days, have no obvious iron mold.
Claims (2)
1. a water-soluble rust prevention during manufacture liquid, is characterized in that being made by the raw material of following weight part: sulfurized olefin cotton oil 4-6, turps 4-5, two octadecanol ester 1-2, diallyl amine 1-2, nano titanium oxide 0.5-1, polyvinyl pyrrolidone 6-9, phosphatase 11-2, N hydroxymethyl acrylamide 10-15, dipentaerythritol acrylate 8-15, the smooth monostearate 1-2 of sorb, Dispersant MF 1-2, EDETATE SODIUM 1-2, auxiliary agent 4-5, water 300; Described auxiliary agent is made by the raw material of following weight part: polyoxyethylene sorbitan monooleate 2-3, nano titanium oxide 0.1-0.2, sodium bicarbonate 1-2, diethanolamine 2-3, carboxymethyl cellulose 2-3, polyvinyl alcohol 1-2, peach gum 1-2, water glass 1-2, urea 3-4, ammonium persulphate 1-2, water 20-24; Preparation method be ammonium persulphate is water-soluble after, then add other leftover materials, stir 10-15 minute, be heated to 70-80 ℃, stirring reaction 1-2 hour, obtains.
2. the preparation method of water-soluble rust prevention during manufacture liquid according to claim 1, is characterized in that comprising the following steps: water, the smooth monostearate of sorb, Dispersant MF are mixed, be heated to 40-50 ℃; Add sulfurized olefin cotton oil, turps, N hydroxymethyl acrylamide, dipentaerythritol acrylate, polyvinyl pyrrolidone, continue to be heated to 85-90 ℃, stir 10-15 minute; Add other remaining components, continue to stir 15-20 minute, obtain.
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CN201310617889.3A CN103695918B (en) | 2013-11-29 | 2013-11-29 | A kind of water-soluble rust prevention during manufacture liquid and preparation method thereof |
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CN201310617889.3A CN103695918B (en) | 2013-11-29 | 2013-11-29 | A kind of water-soluble rust prevention during manufacture liquid and preparation method thereof |
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CN103695918A true CN103695918A (en) | 2014-04-02 |
CN103695918B CN103695918B (en) | 2016-05-04 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110201870A (en) * | 2019-07-10 | 2019-09-06 | 陕西宝光真空电器股份有限公司 | A kind of electromagnetic pure iron part and preparation method thereof with transparent water-soluble protecting film |
Citations (5)
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US4216032A (en) * | 1978-09-27 | 1980-08-05 | Stephen Gradowski | Oil composition and method for treating phosphated metal surfaces |
CN1232079A (en) * | 1998-04-16 | 1999-10-20 | 北京百利威科技发展中心 | Internal cleaning agent for engine of car |
CN103215596A (en) * | 2013-02-04 | 2013-07-24 | 安徽省繁昌县皖南阀门铸造有限公司 | Metal rust-preventive oil comprising chlorobutanol |
CN103215595A (en) * | 2013-02-04 | 2013-07-24 | 安徽省繁昌县皖南阀门铸造有限公司 | Metal rust-preventive oil comprising sorbitan monooleate |
CN103215594A (en) * | 2013-02-04 | 2013-07-24 | 安徽省繁昌县皖南阀门铸造有限公司 | Metal rust-preventive oil comprising coconut oil fatty acid diethanolamide |
-
2013
- 2013-11-29 CN CN201310617889.3A patent/CN103695918B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4216032A (en) * | 1978-09-27 | 1980-08-05 | Stephen Gradowski | Oil composition and method for treating phosphated metal surfaces |
CN1232079A (en) * | 1998-04-16 | 1999-10-20 | 北京百利威科技发展中心 | Internal cleaning agent for engine of car |
CN103215596A (en) * | 2013-02-04 | 2013-07-24 | 安徽省繁昌县皖南阀门铸造有限公司 | Metal rust-preventive oil comprising chlorobutanol |
CN103215595A (en) * | 2013-02-04 | 2013-07-24 | 安徽省繁昌县皖南阀门铸造有限公司 | Metal rust-preventive oil comprising sorbitan monooleate |
CN103215594A (en) * | 2013-02-04 | 2013-07-24 | 安徽省繁昌县皖南阀门铸造有限公司 | Metal rust-preventive oil comprising coconut oil fatty acid diethanolamide |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110201870A (en) * | 2019-07-10 | 2019-09-06 | 陕西宝光真空电器股份有限公司 | A kind of electromagnetic pure iron part and preparation method thereof with transparent water-soluble protecting film |
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Effective date of registration: 20240522 Address after: No. 98 Qicang Road, Mingguang City, Chuzhou City, Anhui Province, 239000 Patentee after: Mingguang Jiuzhi Intellectual Property Management Co.,Ltd. Country or region after: China Address before: 239400 No. 72, Liuwan Road, Mingguang Industrial Park, Chuzhou City, Anhui Province Patentee before: MINGGUANG CITY LIUXIANG PUMP INDUSTRY Co.,Ltd. Country or region before: China |