JPS6143431B2 - - Google Patents
Info
- Publication number
- JPS6143431B2 JPS6143431B2 JP24209483A JP24209483A JPS6143431B2 JP S6143431 B2 JPS6143431 B2 JP S6143431B2 JP 24209483 A JP24209483 A JP 24209483A JP 24209483 A JP24209483 A JP 24209483A JP S6143431 B2 JPS6143431 B2 JP S6143431B2
- Authority
- JP
- Japan
- Prior art keywords
- polyethyleneimine
- carbon atoms
- acid
- formula
- present
- 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
Links
- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- 239000003112 inhibitor Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 6
- 229920002873 Polyethylenimine Polymers 0.000 description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 230000004580 weight loss Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- -1 acetylene alcohols Chemical class 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 150000003333 secondary alcohols Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JPEGUDKOYOIOOP-UHFFFAOYSA-N 2-(hexoxymethyl)oxirane Chemical compound CCCCCCOCC1CO1 JPEGUDKOYOIOOP-UHFFFAOYSA-N 0.000 description 1
- HRWYHCYGVIJOEC-UHFFFAOYSA-N 2-(octoxymethyl)oxirane Chemical compound CCCCCCCCOCC1CO1 HRWYHCYGVIJOEC-UHFFFAOYSA-N 0.000 description 1
- DEVITEWVQCISFK-UHFFFAOYSA-N 2-[(4-octylphenoxy)methyl]oxirane Chemical compound C1=CC(CCCCCCCC)=CC=C1OCC1OC1 DEVITEWVQCISFK-UHFFFAOYSA-N 0.000 description 1
- NJWSNNWLBMSXQR-UHFFFAOYSA-N 2-hexyloxirane Chemical compound CCCCCCC1CO1 NJWSNNWLBMSXQR-UHFFFAOYSA-N 0.000 description 1
- ZDFKSZDMHJHQHS-UHFFFAOYSA-N 2-tert-butylbenzoic acid Chemical compound CC(C)(C)C1=CC=CC=C1C(O)=O ZDFKSZDMHJHQHS-UHFFFAOYSA-N 0.000 description 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- VLCDUOXHFNUCKK-UHFFFAOYSA-N N,N'-Dimethylthiourea Chemical compound CNC(=S)NC VLCDUOXHFNUCKK-UHFFFAOYSA-N 0.000 description 1
- FLVIGYVXZHLUHP-UHFFFAOYSA-N N,N'-diethylthiourea Chemical compound CCNC(=S)NCC FLVIGYVXZHLUHP-UHFFFAOYSA-N 0.000 description 1
- FQYUMYWMJTYZTK-UHFFFAOYSA-N Phenyl glycidyl ether Chemical compound C1OC1COC1=CC=CC=C1 FQYUMYWMJTYZTK-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229960004275 glycolic acid Drugs 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/061—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors nitrogen-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
本発明は、金属の腐食抑制剤、特に酸腐食抑制
剤に関するものである。さらに詳しくは、ポリエ
チレンイミンにモノエポキシ化合物を反応させて
得られる変性ポリエチレンイミンを含有する改良
された酸腐食抑制剤に関するものである。
金属の表面に出来たスケールを除去するため
に、塩酸、硫酸、リン酸等の無機酸や、クエン
酸、ヒドロオキシ酢酸などの有機酸が使用され
る。しかし、酸単独の使用では、スケールの除去
とともに金属表面の溶解がおこるため、それを防
止する目的で酸腐食抑制剤としてチオ尿素、ジエ
チルチオ尿素等の硫黄化合物や、アセチレンアル
コール類等が用いられているが、効果が不充分で
ある。又、特開49−106440号にはポリエチレンイ
ミンが提案されている。ポリエチレンイミンはた
しかに効果はあるものの、添加量が少ない場合に
は効果が充分でない等の欠点を有している。
本発明者等は、従来技術の有するこのような問
題を解決すべく研究を重ねた結果、ポリエチレン
イミンに一般式
The present invention relates to metal corrosion inhibitors, particularly acid corrosion inhibitors. More specifically, the present invention relates to an improved acid corrosion inhibitor containing modified polyethyleneimine obtained by reacting polyethyleneimine with a monoepoxy compound. Inorganic acids such as hydrochloric acid, sulfuric acid, and phosphoric acid, and organic acids such as citric acid and hydroxyacetic acid are used to remove scale formed on the surface of metals. However, when using acid alone, the metal surface dissolves while removing scale, so sulfur compounds such as thiourea and diethylthiourea, acetylene alcohols, etc. are used as acid corrosion inhibitors to prevent this. However, the effect is insufficient. Moreover, polyethyleneimine is proposed in JP-A No. 49-106440. Although polyethyleneimine is certainly effective, it has drawbacks such as insufficient effects when added in small amounts. As a result of repeated research in order to solve these problems of the prior art, the present inventors have developed a general formula for polyethyleneimine.
【式】（式中、R1は炭
素数８〜20のアルキル基を示す。）で表わされる
モノエポキシ化合物及び／又は
A monoepoxy compound represented by [Formula] (wherein R 1 represents an alkyl group having 8 to 20 carbon atoms) and/or
【式】（式中、R2は炭素数８
〜20のアルキル基、フエニル基、又は炭素数１〜
８のアルキル置換基を有するフエニル基を示
す。）で表わされるモノエポキシ化合物を反応さ
せて得られる変性ポリエチレンイミンが、従来の
ポリエチレンイミン等の酸腐食抑制剤に比較し、
極めて少量で酸腐食抑制効果がある事を見出し
た。
本発明に用いられるポリエチレンイミンとはエ
チレンイミンの重合によつて得られる分子量300
から数10万のもので、好ましくは1000以上の分子
量を有するものである。又、尿素やエチレンオキ
サイド、プロピレンオキサイド等で一部変性され
たポリエチレンイミンも使用する事が出来る。
ポリエチレンイミンと反応させるモノエポキシ
化合物としては、一般式[Formula] (wherein R 2 is an alkyl group having 8 to 20 carbon atoms, a phenyl group, or a carbon number 1 to 20
A phenyl group having 8 alkyl substituents is shown. ) The modified polyethyleneimine obtained by reacting the monoepoxy compound represented by
It was found that a very small amount has an acid corrosion inhibiting effect. The polyethyleneimine used in the present invention has a molecular weight of 300 and is obtained by polymerizing ethyleneimine.
The molecular weight ranges from 100,000 to several 100,000, preferably 1,000 or more. Furthermore, polyethyleneimine partially modified with urea, ethylene oxide, propylene oxide, etc. can also be used. The monoepoxy compound to be reacted with polyethyleneimine has the general formula
【式】（式中、
R1は炭素数８〜20のアルキル基を示す。）で表わ
されるもの又は[Formula] (wherein R 1 represents an alkyl group having 8 to 20 carbon atoms) or
【式】（式中、
R2は炭素数８〜20のアルキル基、フエニル基、
又は炭素数１〜８のアルキル置換基を有するフエ
ニル基を示す。）で表わされるものから選ばれる
１種又は２種以上が用いられる。
前者の具体的な例としては、ｎ−ヘキシルエチ
レンオキシド、ヘブチルエチレンオキシド、オク
チルエチレンオキシドあるいは炭素数８〜20のエ
ポキシアルカン等である。これらの中でも好まし
いものは、炭素数12〜18のエポキシアルカンであ
る。
又、後者の具体例としては、フエニルグリシジ
ルエーテル、ｐ−オクチルフニエルグリシジルエ
ーテル、ｎ−ヘキシルグリシジルエーテル、ｎ−
オクチルグリシジルエーテル、炭素数８〜16の第
２級アルコールのグリシジルエーテル等である。
これらの中でも好ましいものは、炭素数８〜16の
第２級アルコールのグリシジルエーテルである。
これらモノエポキシ化合物の１種又は２種以上
の混合物をポリエチレンイミンと反応させるに際
しては、ポリエチレンイミン中の活性水素１当量
に対してモノエポキシ化合物を0.05〜0.7当量、
好ましくは0.1〜0.5モル当量反応させる。0.05当
量未満では変性の効果はあまり認められないし、
又逆に0.7当量も超えると変性ポリエチレンイミ
ンが水に不溶になつたり、塩酸、硫酸、クエン酸
等の酸水溶液に溶解しにくくなり、実用上問題が
ある。
ポリエチレンイミンとモノエポキサイドとの反
応は、無溶媒で、又は水、メタノール、エタノー
ル、トルエン、ベンゼン等の溶媒中で反応するこ
とが出来る。反応温度は室温から200℃の範囲、
通常は50゜〜100℃の範囲で反応させる。
本発明の酸腐食抑制剤は、使用する浴の全体量
に対して0.001％〜0.5重量％の範囲内で使用する
ことが出来る。
又、場合によりジメチルチオ尿素やアセチレン
アルコール類、安息香酸、ｔ−ブチル安息香酸等
と併用する事によつて相乗効果も期待出来る。
本発明の酸腐食抑制剤は、ピクリング用に、化
学洗浄用に、又ピクリング後の後処理剤、化学洗
浄後の一時防せい剤、サビ除去剤として使用する
ことが出来る。
次に実施例及び比較例を挙げて本発明を具体的
に説明するが、これにより本発明は何ら限定を受
けるものではない。
実施例 １
分子量約1000のポリエチレンイミン（商品名エ
ポミンSP−110、日本触媒化学工業(株)製）73部と
炭素数12〜14を有するα−オレフインオキサイド
（商品名AOEX24、ダイセル化学工業(株)製）８部
とを85〜90℃の温度で５時間反応させる事によ
り、25℃の粘度1600cpsを有する粘稠な変性ポリ
エチレンイミンを得た。
実施例 ２〜６
実施例１と同様の方法により、ポリエチレンイ
ミンとモノエポキサイドとを反応させ、変性ポリ
エチレンイミンを得た。その結果をまとめて表１
に示す。[Formula] (In the formula, R 2 is an alkyl group having 8 to 20 carbon atoms, a phenyl group,
Or it represents a phenyl group having an alkyl substituent having 1 to 8 carbon atoms. ) One or more selected from the following are used. Specific examples of the former include n-hexylethylene oxide, hebutylethylene oxide, octylethylene oxide, and epoxy alkanes having 8 to 20 carbon atoms. Among these, preferred are epoxy alkanes having 12 to 18 carbon atoms. Specific examples of the latter include phenyl glycidyl ether, p-octyl phenyl glycidyl ether, n-hexyl glycidyl ether, n-
These include octyl glycidyl ether, glycidyl ether of a secondary alcohol having 8 to 16 carbon atoms, and the like.
Among these, preferred are glycidyl ethers of secondary alcohols having 8 to 16 carbon atoms. When reacting one type or a mixture of two or more of these monoepoxy compounds with polyethyleneimine, the monoepoxy compound is used in an amount of 0.05 to 0.7 equivalents per equivalent of active hydrogen in the polyethyleneimine.
Preferably, the reaction is carried out in an amount of 0.1 to 0.5 molar equivalent. If the amount is less than 0.05 equivalent, the denaturing effect will not be observed much.
On the other hand, if the amount exceeds 0.7 equivalent, the modified polyethyleneimine becomes insoluble in water or becomes difficult to dissolve in an aqueous acid solution such as hydrochloric acid, sulfuric acid, citric acid, etc., which poses a practical problem. The reaction between polyethyleneimine and monoepoxide can be carried out without a solvent or in a solvent such as water, methanol, ethanol, toluene, benzene, or the like. The reaction temperature ranges from room temperature to 200℃,
Usually, the reaction is carried out in the range of 50° to 100°C. The acid corrosion inhibitor of the present invention can be used in an amount of 0.001% to 0.5% by weight based on the total amount of the bath used. In addition, a synergistic effect can be expected by using it in combination with dimethylthiourea, acetylene alcohols, benzoic acid, t-butylbenzoic acid, etc. in some cases. The acid corrosion inhibitor of the present invention can be used for pickling, chemical cleaning, as a post-treatment agent after pickling, a temporary rust preventive agent after chemical cleaning, and a rust remover. Next, the present invention will be specifically explained with reference to Examples and Comparative Examples, but the present invention is not limited thereby. Example 1 73 parts of polyethyleneimine having a molecular weight of about 1000 (trade name Epomin SP-110, manufactured by Nippon Shokubai Chemical Co., Ltd.) and α-olefin oxide having a carbon number of 12 to 14 (trade name AOEX24, manufactured by Daicel Chemical Industries, Ltd.) By reacting 8 parts of (manufactured by )) at a temperature of 85 to 90°C for 5 hours, a viscous modified polyethyleneimine having a viscosity of 1600 cps at 25°C was obtained. Examples 2 to 6 Polyethyleneimine and monoepoxide were reacted in the same manner as in Example 1 to obtain modified polyethyleneimine. Table 1 summarizes the results.
Shown below.
【表】【table】
【表】
実施例６〜10
本発明の抑制剤としての効果をみるため、10％
濃度の塩酸溶液中に本発明の抑制剤を固形分とし
て所定量添加し、これに磨軟鋼板（35×45×0.4
mm）を浸漬し、30℃で16時間浸漬後の重量減より
腐食抑制率を下式にしたがい算出した。
腐食抑制率（％）＝（無添加時の重量減少率）−（添加時の重量減少率）／（無添加時の重量減少率）×100
その結果を表２に示した。なお比較例１には分子
量1000のポリエチレンイミンを、比較例２には分
子量10000のポリエチレンイミンを用いた場合の
結果を示した。[Table] Examples 6 to 10 To examine the effect of the present invention as an inhibitor, 10%
A predetermined amount of the inhibitor of the present invention as a solid content is added to a concentrated hydrochloric acid solution, and a polished mild steel plate (35 x 45 x 0.4
mm), and the corrosion inhibition rate was calculated from the weight loss after immersion at 30°C for 16 hours according to the formula below. Corrosion inhibition rate (%) = (weight loss rate without addition) - (weight loss rate with addition)/(weight loss rate without addition) x 100 The results are shown in Table 2. Note that Comparative Example 1 shows the results when polyethyleneimine with a molecular weight of 1000 is used, and Comparative Example 2 shows the results when polyethyleneimine with a molecular weight of 10000 is used.
【表】
表２に示した様に本発明の酸腐食抑制剤は、効果
がきわめてすぐれている事がわかる。
実施例 11
実施例５で得た変性ポリエチレンイミンを10％
硫酸中に固形分として100ppm添加し、これに磨
軟鋼板（35×50×0.4mm）を浸漬し、50℃で２時
間浸漬後の重量減より腐食抑制率を実施例６〜10
の時と同様に測定したところ、92.3％であつた。
なお、比較例３として分子量1000のポリエチレ
ンイミンを使用した場合には64.2％であつた。[Table] As shown in Table 2, it can be seen that the acid corrosion inhibitor of the present invention is extremely effective. Example 11 10% modified polyethyleneimine obtained in Example 5
A polished mild steel plate (35 x 50 x 0.4 mm) was added to sulfuric acid as a solid content of 100 ppm, and the corrosion inhibition rate was determined from the weight loss after immersion at 50°C for 2 hours.Examples 6 to 10
When measured in the same way as in the case of , it was 92.3%. In addition, when polyethyleneimine with a molecular weight of 1000 was used as Comparative Example 3, it was 64.2%.
Claims (1)
す。）で表わされるモノエポキシ化合物及び／又
は【式】（式中、R2は炭素数 ８〜20のアルキル基、フエニル基又は炭素数１〜
８のアルキル置換基を有するフエニル基を示
す。）で表わされるモノエポキシ化合物を反応さ
せて得られる変性ポリエチレンイミドを含有する
酸腐食抑制剤。[Scope of Claims] 1. A monoepoxy compound represented by the general formula [Formula] (wherein, R 1 represents an alkyl group having 8 to 20 carbon atoms) and/or [Formula] (wherein, R 2 is an alkyl group having 8 to 20 carbon atoms, a phenyl group, or 1 to 20 carbon atoms
A phenyl group having 8 alkyl substituents is shown. ) An acid corrosion inhibitor containing modified polyethyleneimide obtained by reacting a monoepoxy compound represented by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24209483A JPS60135585A (en) | 1983-12-23 | 1983-12-23 | Acid corrosion inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24209483A JPS60135585A (en) | 1983-12-23 | 1983-12-23 | Acid corrosion inhibitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60135585A JPS60135585A (en) | 1985-07-18 |
| JPS6143431B2 true JPS6143431B2 (en) | 1986-09-27 |
Family
ID=17084203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24209483A Granted JPS60135585A (en) | 1983-12-23 | 1983-12-23 | Acid corrosion inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60135585A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08311492A (en) * | 1995-05-19 | 1996-11-26 | Yushiro Chem Ind Co Ltd | Aqueous detergent composition |
| WO2016039425A1 (en) * | 2014-09-10 | 2016-03-17 | 株式会社日本触媒 | Antimicrobial agent containing polyalkyleneimine derivative |
-
1983
- 1983-12-23 JP JP24209483A patent/JPS60135585A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60135585A (en) | 1985-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4637899A (en) | Corrosion inhibitors for cleaning solutions | |
| US2425320A (en) | Cleaning and pickling of metals | |
| US4113498A (en) | Corrosion inhibitor for metal surfaces | |
| US4104303A (en) | Acid inhibitor composition and process in hydrofluoric acid chemical cleaning | |
| JP6523290B2 (en) | Bis-imidazoline compounds as corrosion inhibitors and their preparation | |
| JP5691039B2 (en) | Corrosion inhibitor composition for acid cleaning | |
| US2959555A (en) | Copper and iron containing scale removal from ferrous metal | |
| JPS6070189A (en) | Oxygen capturing agent and use | |
| US20200199764A1 (en) | Inhibitors of metal corrosion | |
| US4541946A (en) | Corrosion inhibitor for amine gas sweetening systems | |
| JP4824925B2 (en) | Chelating agent / corrosion inhibitor composition for organic acid cleaning | |
| US4595723A (en) | Corrosion inhibitors for alkanolamines | |
| US3414521A (en) | Acid corrosion inhibitors | |
| MX2008010116A (en) | Acid imhibitor compositions for metal cleaning and/or pickling. | |
| US4596849A (en) | Corrosion inhibitors for alkanolamines | |
| MXPA06004033A (en) | Formulation for corrosion and scale inhibition. | |
| JPS6143431B2 (en) | ||
| US3408307A (en) | Inhibiting corrosion of copper with tetrazoles | |
| JP2017508871A (en) | Corrosion-inhibiting composition comprising concentrated linear tetramine-derived bisimidazoline compound | |
| US2203649A (en) | Acid solution | |
| US3188292A (en) | Pickling inhibiting compositions | |
| US3819527A (en) | Composition and method for inhibiting acid attack of metals | |
| CN109913879A (en) | A kind of Compositional type pyridine amidine corrosion inhibiter and preparation method thereof for nitric acid acidwashing brass part | |
| US3642641A (en) | Corrosion inhibition | |
| US3843337A (en) | Benzotriazole and tolyltriazole mixtures |