US2329065A - Corrosion resistant coating for metal surfaces - Google Patents
Corrosion resistant coating for metal surfaces Download PDFInfo
- Publication number
- US2329065A US2329065A US433586A US43358642A US2329065A US 2329065 A US2329065 A US 2329065A US 433586 A US433586 A US 433586A US 43358642 A US43358642 A US 43358642A US 2329065 A US2329065 A US 2329065A
- Authority
- US
- United States
- Prior art keywords
- phosphate
- metal
- solution
- activating
- zinc
- 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 - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 title description 79
- 239000002184 metal Substances 0.000 title description 79
- 238000000576 coating method Methods 0.000 title description 42
- 239000011248 coating agent Substances 0.000 title description 18
- 230000007797 corrosion Effects 0.000 title description 15
- 238000005260 corrosion Methods 0.000 title description 15
- 229910019142 PO4 Inorganic materials 0.000 description 50
- 235000021317 phosphate Nutrition 0.000 description 50
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 47
- 239000010452 phosphate Substances 0.000 description 47
- 239000000243 solution Substances 0.000 description 38
- 230000003213 activating effect Effects 0.000 description 28
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 21
- 229910052725 zinc Inorganic materials 0.000 description 21
- 239000011701 zinc Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 150000003839 salts Chemical class 0.000 description 15
- 150000002739 metals Chemical class 0.000 description 12
- 230000001681 protective effect Effects 0.000 description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 11
- 229910052785 arsenic Inorganic materials 0.000 description 11
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 11
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 9
- 229910000397 disodium phosphate Inorganic materials 0.000 description 9
- 235000019800 disodium phosphate Nutrition 0.000 description 9
- 239000001488 sodium phosphate Substances 0.000 description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000007800 oxidant agent Substances 0.000 description 6
- 239000008199 coating composition Substances 0.000 description 5
- -1 for example Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 229910001463 metal phosphate Inorganic materials 0.000 description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 2
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 2
- CPSYWNLKRDURMG-UHFFFAOYSA-L hydron;manganese(2+);phosphate Chemical compound [Mn+2].OP([O-])([O-])=O CPSYWNLKRDURMG-UHFFFAOYSA-L 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 239000004317 sodium nitrate Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-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
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- AZFNGPAYDKGCRB-XCPIVNJJSA-M [(1s,2s)-2-amino-1,2-diphenylethyl]-(4-methylphenyl)sulfonylazanide;chlororuthenium(1+);1-methyl-4-propan-2-ylbenzene Chemical compound [Ru+]Cl.CC(C)C1=CC=C(C)C=C1.C1=CC(C)=CC=C1S(=O)(=O)[N-][C@@H](C=1C=CC=CC=1)[C@@H](N)C1=CC=CC=C1 AZFNGPAYDKGCRB-XCPIVNJJSA-M 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910000413 arsenic oxide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 1
- 235000019797 dipotassium phosphate Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 235000010289 potassium nitrite Nutrition 0.000 description 1
- 239000004304 potassium nitrite Substances 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium 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
- 239000002904 solvent Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- FAKFSJNVVCGEEI-UHFFFAOYSA-J tin(4+);disulfate Chemical class [Sn+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O FAKFSJNVVCGEEI-UHFFFAOYSA-J 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical class Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
Definitions
- This invention relates to the art of producing corrosion resistant coatings upon the surfaces of iron, zinc, cadmium and other metals and alloys thereof.
- This invention relates more particularly to the rapid and eiiicient production of phosphate coatings upon the surfaces of metals.
- Protective phosphate coatings of this type are of great economic importance in the preparation of metal surfacesfor the reception of an organic finish.
- the object of this invention isto provide for expediting and improving the application of protective phosphate coatings on metal surfaces by subjecting the metal to a preactivating treatment.
- the phosphate coatings are of value, in that they constitute an excellent base for the application of organic finishes to the metal surfaces. talline nature of the phosphate coatings upon the metal, the organic finishes will bond and adhere more tenaciously thereto than to the bare metal surface. Peeling of the paint due to inadequate bonding is greatly diminished when protective phosphate coatings are employed. In addition, the separation of the organic finish from the metal surface due to corrosion of the surface metal beneath the organic finish is greatly reduced, since the protective phosphate coatings inhibit corrosion.
- phosphate coatings have been produced upon metal surfaces by applying a, solution containing phosphoric acid and phosphates.
- the time involved in treating the metal surface in order to secure adequate protective coatings usually has been lengthy and even within recent years has constituted a fraction of an hour.
- the treatment has been extremely lengthy. and even so the Due to the crysadequate reaction between the metal surface and a composition capable of developing a phosphate coating thereon may be greatly reduced by subjecting the metal surface to a preliminary activating treatment.
- bare metal surfaces When treated with an activating solution of the type described herein, bare metal surfaces have imparted thereto certain characteristics whereby they are activated so that the normal or modified phosphate coating compositions will form an exceedingly durable and complete phosphate film or coating thereon with great rapidity, for example, in a minute or less.
- a further advantage obtained by the activation of metal surfaces is the formation of satisfactory phosphate coatings upon metals which heretofore did not lend themselves to the formation of good phosphate coatings.
- zinc which ordinarily is not regarded as capable of being consistentl satisfactoryily treated with phosphate coating compositions, is now readily and fully treatable in a minute or less when activated by the preliminary treatment herein disclosed.
- metal surfaces to be subsequently subjected toa treatment prophosphate and oneor more compounds from the group selected from tin, lead, or arsenic the following process has been found to be most preferable.
- Orthodisodium phosphate is dissolved in water, preferably to form a nearly saturated solution.
- a small amount of one or more water soluble salts of the group consisting of tin, lead or arsenic is added to this solution in an amount ranging from /2 of 1% of the weight of the discdium phosphate up to of the weight of disodium phosphate or even more.
- I Arsenic oxides, lead acetates, tin chlorides and tin sulfates are examples of salts usable for the purpose.
- the solution so prepared is evaporated to dryness by slow heating. The residue may be broken up, preferably finely pulverized, in order to facilitate dissolving in water in subsequent operations.
- disodium orthophosphate is the most desirable material in producing the activating solution.
- Other dialkali potassium point solution and comprising 1:8 of the total phosphate content, and the remainder water is one example of a solution suitable for use with zinc.
- an oxidizing agent such as a nitrate in amount from 0.2% to 1% may bepresent in order to remove any nascent hydrogen bubbles which form on the metal surfaces.
- phosphate coating composition causes a heavy discharge of gaseous bubbles from the metal surfaces. It is believed that the cessation of such bubbling, which occurs in about 30 seconds, is a sign that the phosphate coating I microscope particularly reveals the exceptional improvement produced by applying the activating salts, for example, dipotassium phosphate, may be v employed in the same manner.
- the dried composition resulting from the evaporation described above is dissolved in water to prepare the activating solution. It has been found that the best results have been obtained when the solution contains from 0.1 to 2% of a dialkali phosphate, such as disodium phosphate, and the quantity of the soluble salt selected from the group described above ranges from 0.005% to 0.05%. However, the salt-content may be varied from this preferred range with activation being obtained.
- the pH or the solution within the range set forth will vary from 8.0 to 8.5
- the metal surface to be treated is initially thoroughly cleansed.-
- One suitable treatment is cleaning in vapors of chlorinated solvents such as trichloretlfylene and the like.
- the metal surface may be electrocleaned or subjected to alkaline detergents witlithorough washing with clean water before applying the activating solution.
- the thoroughly cleaned metal surface may be dipped into the disodium phosphate metallic salt activating solution or the solution may be sprayed over the metallic parts or applied in any desired manner.
- the surfaces need be subjected for about only 10 seconds to the activating solution in order to acquire a satisfactory degree of activation. However, applications of activating solution for seconds or more are beneficial. It is believed that the metal surface does not acquire any protective coating during this stage of the process.
- reaction is substantially complete. It is generally desirable, however, to prolong the application of the solution to themetal surface for a brief period of time beyond this point in order to insure complete formation of the phosphate coating.
- the metal may be removed from the phosphate coating composition and subjected to heat in order to dry the surface.
- the metal coming from thephosphate coating bath may be treated with chromic acid as a sealing coating and thereafter dried. Again the metal may be subjected to a hot chromic acid solution at a temperature of around 190 F. and thus acquire sufiicient heat so that the metal dries automatically in the air after removal from the solution.
- the treated dry surface will reveal on examination an almost velvety appearing crystalline coating of remarkable uniformity.
- the naked eye is unable todistinguish separate crystals. Under the microscope, ahigh magnification is necessary in order to disclose the separate. crystals.
- the coatings . are composed of relatively coarse crystals and the coverage of the metal surface is noticeably irregular. Large un'coated spaces between the crystals are dispersed at very frequent intervals.
- th metal acquires a much finer crystalline coating which under the microscope reveals very few open spaces and the coverage is more effective than that on the unactivated metal.
- Steel and iron surfaces may be subjected to the activating solution in the same manner as zinc.
- the activated ferrousmetal surfaces will respondbetter to a treatment by a phosphate solution differing somewhat from the previous solution.
- a typical formula for ferrous metals is a given herein-z Manganese phosphate pounds 1% Phosphoric acid 83% do 5 Sodium nitrate do Cupric nitrate ounce Suflicient water to make one gallon of solution.
- the gallon of solution is diluted with water to make a 3% "solution.
- the main purpose of the sodium nitrate in the above formula is to provide an oxidizing agent to react with small amounts of nascent hydrogen which are produced when the solution reacts with the metal surface. Unless the hydrogen is oxidized or removed as large bubbles of hydrogen gas, the nascent hydrogen adheres to the metal surface and blankets the action of the solution. Therefore, a non-uniform coating may result.
- the oxidizing agent will immediately react with the bubbles of nascent hydrogen and remove them from the surface of the metal.
- Other oxidizing agents such as sodium or potassium nitrite, are suitable for this purpose.
- Zinc phosphate may be introduced to replace a part of the manganese phosphate in the solution for treating ferrous metals.
- the presence of one or more of the group consisting of zinc, copper and manganese greatly expedites the reaction-of the ferrous metal with the phosphate solution.
- ferrous metals and zinc other metals such as cadmium and alloys of these metals are similarly responsive to the activating treatment to acquire phosphate coatings of the finely crystalline nature herein disclosed.
- Corrosion tests have revealed a decided improvement in the corrosion resistance of the phosphate coatings as secured to the practice of the invention in this case.
- An activating solution for treating metal surfaces to improve the subsequent formation of protective phosphate coatings on the metal surfaces comprisin in combination, an aqueous solution containing as its essential components from 0.1% to 2% of disodium phosphate and from 0.005% to 0.05% of a water soluble metal salt sewill turn completely white after 12 hours.
- An activating solution for treating metal surfaces to improve the subsequent formation of protective phosphate coatings on the metal surfaces comprising, in combination, an aqueous solution containing as its essential components a dialkali metal phosphate and water soluble metal salts selected from the group of metals consisting of tin, lead and arsenic.
- An activating solution for treating metal surfaces to improve the subsequent formation of protective phosphate coatings on the metal surfaces comprising, in combination, an aqueous solution containing as its essential components from 0.1% to 2% of disodium phosphate and water soluble metal salts selected from the group of metals consisting of tin, lead and arsenic.
- a composition capable of activating metal surfaces comprising essentially, in combination, a dialkali metal phosphate and a water soluble metal salt selected from the group of metals consisting of lead, tin and arsenic.
- a composition capable of activating metal surfaces composed essentially of disodium phosphate and a .water soluble metal salt selected from the group of metals consisting of lead, tin and arsenic.
- a composition capable of activating metal surfaces composed essentially of disodium phosphate and a water soluble metal salt selected from the group of metals consisting of lead, tin and arsenic, the metal phosphate and the metal salt being derived from a water solution of both evaporated to dryness.
- the method of applying protective phosphate coatings to metal surfaces which comprises, in combination, applying an aqueous solution of a dialkali metal phosphate and a water soluble salt of a metal selected from the group consisting of lead, tin and arsenic, the aqueous solution activating the metalsurface, and thereafter subjecting the activated metal surface to a I resistant phosphate coating thereon.
- the method of applyi Protective phosphate coatings to metal surfaces which comprises, in combination, applying an aqueous solution of from 0.1% to 2% of disodium phosphate and from 0.005% to 0.05% of a water soluble salt of a metal selected from the group consisting of lead, tin and arsenic, the aqueous solution activating the metal surface, and thereafter subjecting the activated metal surface to a solution of phosphoric acid, phosphates and an oxidizing agent to produce an effective corrosion resistant phosphate coating thereon.
- the method of applying protective phosphate coatings to metal surfaces which comprises, in combination, applying an aqueous solution of disodium phosphate and a water soluble salt of a metal selected from the group consisting of lead, tin and arsenic, the aqueous solution activating the metal surface, and thereafter subjecting the activated metal surface to a solution of phosphoric acid, phosphates and an oxidizing agent to produce an effective corrosion resistant phosphate coating thereon.
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US433586A US2329065A (en) | 1942-03-06 | 1942-03-06 | Corrosion resistant coating for metal surfaces |
| GB3661/43A GB564521A (en) | 1942-03-06 | 1943-03-05 | Improved method of producing corrosion resistant phosphate coatings on metal and alloy metal surfaces |
| NL122232A NL62181C (pt) | 1942-03-06 | 1945-11-30 | |
| FR919461D FR919461A (fr) | 1942-03-06 | 1945-12-27 | Revêtement protégeant les surfaces métalliques contre la corrosion |
| CH259830D CH259830A (de) | 1942-03-06 | 1947-03-17 | Verfahren zur Herstellung von korrosionsbeständigen Deckschichten auf Metalloberflächen. |
| ES177804A ES177804A1 (es) | 1942-03-06 | 1947-04-29 | Un procedimiento de producir capas de fosfatos resistentes a la corrosión sobre superficies metálicas |
| ES177805A ES177805A1 (es) | 1942-03-06 | 1947-04-29 | Un procedimiento de producir composiciones para activar superficies metálicas |
| BE472648D BE472648A (pt) | 1942-03-06 | 1947-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US433586A US2329065A (en) | 1942-03-06 | 1942-03-06 | Corrosion resistant coating for metal surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2329065A true US2329065A (en) | 1943-09-07 |
Family
ID=23720697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US433586A Expired - Lifetime US2329065A (en) | 1942-03-06 | 1942-03-06 | Corrosion resistant coating for metal surfaces |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2329065A (pt) |
| BE (1) | BE472648A (pt) |
| CH (1) | CH259830A (pt) |
| ES (2) | ES177805A1 (pt) |
| FR (1) | FR919461A (pt) |
| GB (1) | GB564521A (pt) |
| NL (1) | NL62181C (pt) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417885A (en) * | 1943-10-02 | 1947-03-25 | Carbide & Carbon Chem Corp | Process for coating copper with vinyl resins |
| US2456947A (en) * | 1944-12-21 | 1948-12-21 | Westinghouse Electric Corp | Corrosion resistant coating for metal surfaces |
| US2698266A (en) * | 1951-07-02 | 1954-12-28 | American Chem Paint Co | Material for treating metal surfaces to improve corrosion resistance and paint bonding ability |
| US2743205A (en) * | 1954-10-14 | 1956-04-24 | Westinghouse Electric Corp | Composition and process for treating metal surfaces |
| US2790739A (en) * | 1953-12-07 | 1957-04-30 | United States Steel Corp | Method of coating core plates and composition therefor |
| US3141797A (en) * | 1961-09-07 | 1964-07-21 | Lubrizol Corp | Phosphating process |
| US3219489A (en) * | 1962-05-24 | 1965-11-23 | Conversion Chem Corp | Composition and method for blackening the surfaces of cadmium and zinc |
| US3355330A (en) * | 1964-03-03 | 1967-11-28 | Hooker Chemical Corp | Metal treating processes |
| US3395052A (en) * | 1963-09-30 | 1968-07-30 | Zawata Iron & Steel Co Ltd | Pretreating process for phosphatetreating steel sheets and plated steel sheets |
| US3516875A (en) * | 1966-06-11 | 1970-06-23 | Hooker Chemical Corp | Process for coating ferrous surfaces |
| US4384900A (en) * | 1979-12-21 | 1983-05-24 | Gerhard Collardin Gmbh | Method of treating metal surfaces prior to phosphatization |
| US4957568A (en) * | 1988-04-28 | 1990-09-18 | Henkel Kommanditgesellschaft Auf Aktien | Composition and process for activating metal surfaces prior to zinc phosphating and process for making said composition |
| US5160551A (en) * | 1990-04-21 | 1992-11-03 | Metallgesellschaft Aktiengesellschaft | Activator for use in phosphating processes |
| US20090312170A1 (en) * | 2008-06-12 | 2009-12-17 | Wagh Arun S | Inorganic Phosphate Resins and Method for Their Manufacture |
| US20110143154A1 (en) * | 2009-12-11 | 2011-06-16 | Wagh Arun S | Inorganic phosphate corrosion resistant coatings |
| US20110155137A1 (en) * | 2009-12-30 | 2011-06-30 | 3M Innovative Properties Company | Filtering face-piece respirator having an auxetic mesh in the mask body |
| US8425717B2 (en) | 2010-02-09 | 2013-04-23 | Latitude 18, Inc. | Phosphate bonded composites and methods |
| US8858702B2 (en) | 2009-12-11 | 2014-10-14 | Latitude 18, Inc. | Inorganic phosphate compositions and methods |
| US10422041B2 (en) | 2009-12-18 | 2019-09-24 | Latitude 18, Inc | Inorganic phosphate corrosion resistant coatings |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE975313C (de) * | 1947-09-08 | 1961-11-02 | Metallgesellschaft Ag | Verfahren zur Erzeugung von geschmeidigen Phosphatueberzuegen auf metallischen Gegenstaenden |
-
1942
- 1942-03-06 US US433586A patent/US2329065A/en not_active Expired - Lifetime
-
1943
- 1943-03-05 GB GB3661/43A patent/GB564521A/en not_active Expired
-
1945
- 1945-11-30 NL NL122232A patent/NL62181C/xx active
- 1945-12-27 FR FR919461D patent/FR919461A/fr not_active Expired
-
1947
- 1947-03-17 CH CH259830D patent/CH259830A/de unknown
- 1947-04-29 ES ES177805A patent/ES177805A1/es not_active Expired
- 1947-04-29 ES ES177804A patent/ES177804A1/es not_active Expired
- 1947-05-31 BE BE472648D patent/BE472648A/xx unknown
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417885A (en) * | 1943-10-02 | 1947-03-25 | Carbide & Carbon Chem Corp | Process for coating copper with vinyl resins |
| US2456947A (en) * | 1944-12-21 | 1948-12-21 | Westinghouse Electric Corp | Corrosion resistant coating for metal surfaces |
| US2698266A (en) * | 1951-07-02 | 1954-12-28 | American Chem Paint Co | Material for treating metal surfaces to improve corrosion resistance and paint bonding ability |
| US2790739A (en) * | 1953-12-07 | 1957-04-30 | United States Steel Corp | Method of coating core plates and composition therefor |
| US2743205A (en) * | 1954-10-14 | 1956-04-24 | Westinghouse Electric Corp | Composition and process for treating metal surfaces |
| US3141797A (en) * | 1961-09-07 | 1964-07-21 | Lubrizol Corp | Phosphating process |
| US3219489A (en) * | 1962-05-24 | 1965-11-23 | Conversion Chem Corp | Composition and method for blackening the surfaces of cadmium and zinc |
| US3395052A (en) * | 1963-09-30 | 1968-07-30 | Zawata Iron & Steel Co Ltd | Pretreating process for phosphatetreating steel sheets and plated steel sheets |
| US3355330A (en) * | 1964-03-03 | 1967-11-28 | Hooker Chemical Corp | Metal treating processes |
| US3516875A (en) * | 1966-06-11 | 1970-06-23 | Hooker Chemical Corp | Process for coating ferrous surfaces |
| US4384900A (en) * | 1979-12-21 | 1983-05-24 | Gerhard Collardin Gmbh | Method of treating metal surfaces prior to phosphatization |
| US4957568A (en) * | 1988-04-28 | 1990-09-18 | Henkel Kommanditgesellschaft Auf Aktien | Composition and process for activating metal surfaces prior to zinc phosphating and process for making said composition |
| US5160551A (en) * | 1990-04-21 | 1992-11-03 | Metallgesellschaft Aktiengesellschaft | Activator for use in phosphating processes |
| US20090312170A1 (en) * | 2008-06-12 | 2009-12-17 | Wagh Arun S | Inorganic Phosphate Resins and Method for Their Manufacture |
| US8167995B2 (en) | 2008-06-12 | 2012-05-01 | Latitude 18, Inc. | Inorganic phosphate resins and method for their manufacture |
| US20110143154A1 (en) * | 2009-12-11 | 2011-06-16 | Wagh Arun S | Inorganic phosphate corrosion resistant coatings |
| US8557342B2 (en) | 2009-12-11 | 2013-10-15 | Latitude 18, Inc. | Inorganic phosphate corrosion resistant coatings |
| US8858702B2 (en) | 2009-12-11 | 2014-10-14 | Latitude 18, Inc. | Inorganic phosphate compositions and methods |
| US10422041B2 (en) | 2009-12-18 | 2019-09-24 | Latitude 18, Inc | Inorganic phosphate corrosion resistant coatings |
| US20110155137A1 (en) * | 2009-12-30 | 2011-06-30 | 3M Innovative Properties Company | Filtering face-piece respirator having an auxetic mesh in the mask body |
| US8425717B2 (en) | 2010-02-09 | 2013-04-23 | Latitude 18, Inc. | Phosphate bonded composites and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| GB564521A (en) | 1944-10-02 |
| NL62181C (pt) | 1948-12-15 |
| CH259830A (de) | 1949-02-15 |
| FR919461A (fr) | 1947-03-10 |
| ES177805A1 (es) | 1947-06-01 |
| BE472648A (pt) | 1947-04-18 |
| ES177804A1 (es) | 1947-06-01 |
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