Rust removal

[Detailed Description of the Invention]

beta 11 A runaway] This is appearance 1 i?fi [ in / a part / Japanese I A of silk; Continuing application ] from which it gets down to the U.S. of the 3640th fl No. 0 of U.S. simultaneous Japan 1 1 application S N of March, 1982 3] day presentation. An invention is clear. As for this invention, gold is related with removal of the rust from the surface. The background of an invention i'l' of application of paint or other protection coating - (when carrying out #ii, it is a problem between Seductions that the Gold corridor surface removes Lami enough.) Sand plus Ting. Appearance, such as wire brush Scrubbing (it is troublesome and daughter clean technology is time or darn.) The conventional trial which changes the rusty surface in Fresh chemically was not completely satisfactory. Especially the metal 2 surface of Bad cedar is the irregular surface as which one sanctification is regarded on a vessel, i.e., a highly humid valve pipe etc. time for the only possible cleaning method to often apply the solution of the A wet gamma19 agent which carried out the offing of wire Frazi lever pickpocket influence, then the cleaning agent 1 for the surface which should be sanctified to the Venus surface -- But -- Ri -- it is a troublesome method. maintaining sanctification fluid with such art the surface like an overhead object which should be sanctified, and in the shape of [ r ] contact -- Punishment -- and it is troubled with the disposal after a tide-like waste-leaves thing. These solution some parts are poisonous and uneconomical, and need a lot of water for washing. Chemicals ready articles, such as a control (1nhibjJed) place harsh, ethylene diamine 4r'1 l-i>f EDTA, EDTA / citrate, needed to be used for the conventional trial which removes rust chemically. Aqueous ''4 like [ common these days ] Poly (vinylidenechloride) (PVP): It was proposed that the rusty gold which should be sanctified with the paste of Mourning and a chelation agent like EDTA covers a field. n If Heyst of Cotton basketball can harden, can remove the Rui skin and 41' A rust from the surface taken in and sanctified and can dispose as radioactive solid waste, he will break. this method -- the [ United States patent ] -- 4.32 F+ No. 74.4 specification -- further -- 5C' all -- stating -- To. The abstract of an invention In the removing method of the rust from the golden r surface where this invention rusted: (a) It is maleic acid and formula 0 formula % to the surface rusty [ account of njt ]. (-- R in a formula -- H, CH8, and OR -- again -- ill using [ : 0COR is shown and / R1 / essentially ]-from solution of copolymer of single star object denoted by Not shown) in CH8 or CH2CH3-layer of t[A rust removal coach ink composition 1 thing: -- and self-part thick - b+i'+i word Picote ink silk product A --; -- Dry and Desolation 7 -- the layer which takes rust into the above-mentioned layer and includes rust by this is a removing method of the rusty rust from a surface of metal which consists of carrying out from the surface. '?X' A of an invention -- description [ one ] The maleic acid copolymers used for This and 7' invention are a maleic anhydride and formula % type %. (It can form by the power 1 moisture solution of the catalyst precursor copolymer of the single A object denoted by R (Up -, CH8, OR, or 0COR is shown, and R shows OH or CH2CH3) in a formula.) any of the conventional method by which Precursor gijf union is known for manufacture of this sum and a copolymer -- reference -- an illustration gap -- the [ US special t'l No. 355.3183 and ] -- it can do [ obtaining by 879phi622-Li and No. 3933763, or ]. In shape of the solution in which a copolymer generally contains the polymer of abbreviation 5~60 promotion-to-a-responsible-post * percent (% of the weight), and about 10~95% of the weight of water in carrying out this invention (To 7]2 To for psi.) Molecule bX of a Exile 1 mullein re copolymer is extensive zeta! Grin [: It can be made Reto. For example, it is idea talent] To that it is suitable to use for about 2()~120 and the copolymer which kneads 61 and Oia a value even for 4 to be included more as for 6t of Island island, or the real part of this invention generally. the quantity of water -- A 111 (sparrow within [ Above ] a desirable limit (To be viscosity makes quantity of the water to be used the main variable - The -- it shall Change broadly)) Trace ' Interpretation of the desirable viscosity of the rust removal coating constituent of this invention is dependent on Disposal which carries out 1 figure as main. For example, a Toda metal department is received for a while (it is desirable to use thin liquefied coating which has the viscosity of about 50~50000cmP (CI) l so that it can do [ making Trust coating into the thickness of abbreviation 0.0]~5 mll+ with the usual paint brush or ].). To many uses, it is abbreviation ] 0 (desirable in paste-like coating of comparison rhoi viscosity which has the viscosity of +00~2500 fl OCp) to a metaphor. Coating of such hyperviscosity can be performed [ using it even for the overhead surface easily or ], for example, a putty knife responds to it about 0.5~20mr+ or necessary, and it can form thicker coating. A paste-like-shaped copolymer is preferred, especially although the use back to the surface where coating rusted, or Mr drips and it applies to the table (2) on Horny i button 1, the Vertical side which is not desirable, or the head. It can do [ making it increase by adding] yuzu citron of sufficient quantity to increase this for the viscosity of the coating constituent which it Response to necessary and uses for this invention to a necessary value, or more thickeners than it to a constituent, or ]. The conventional thickener of Appointment can be used for this object. When using, the thickener of the beach of 0-fold [ abbreviation 0.j~] ] Regrettable % is often used on the basis of the whole constituent. Nature [ agent / suitable / adding-a-car-to-a-train ], such as Xanthan, Gua (guar), and tiger power Kant, or quality of method Beam of composition; cellulose guidance 1A like carboxyethyl cellulose, ; The bridge of acrylic acid, hydrogel; like a polymer which applies, and the synthetic adding-a-car-to-a-train agent or To include of Sen like poly (methyl Vinyl ether / side water mullein Drunk) which total * Applies. United States patent 314-8th indicated to reference here 1' of the form stated to [No. 188 Light blue -- ji applies and the copolymer is [ the metaphor ] suitable for this object. Precursive ↑ and the quality of the copolymer which is in the method of this lj to emit moon 1 are the Aqueduct maleic acid copolymers of a formula. A copolymer is used in the shadow of solution like the account of fiil. It is abbreviation () at least to front Facial expression 1j of Gold corridor which rusted the Yours coating constituent which use Age] Copolymer is hydrolyzed all over water valley Ita, and carries out a general formula invention. Q] desirable [ generally ] in whether it uses by Buried of +ara -- about -- it is much more desirable in example 1jli of 0.5~2 mm. in the greatly rusty surface, that of coating or Crack guarantees perfect removal to this [] ] -- as -- at least -- abbreviation ] It is desirable in it being J %j To of m=. woman ■ of the account of"- better -- motto bottom About 5~8 hours of a condition dry There thickness, now used coating. between Dry and a moment -- mainly -- coating -- Pasting -- and it is dependent on atmospheric A ceremony and the conditions of Taku and 1- containing one Imaginary and especially Y111 degree at Facial before viscosity. Coating when it is made to dry completely, rust is mixed in coating and Ynu Most fully carries out To coating compared with every of the rust on a metal surface -- dry coating including rust -- gold -- the form of a field to a thin piece or a small strip -- island To be -- like or [ becoming and carrying out self-removal from a golden December side ] -- Frazi credit -- or -- blowing away -- method f of of -- "-- it removes easily by things. only leaving the feature of self-removal to the thin piece or one sections of To reject of dry coating, and gold only carrying out under the influence fall of gravity from the surface in the case of the surface on the head -- Trace ' Fauna -- it is sufficient grade. The self-removal nature of the copolymer to be used is comparatively insensible about change of humidity and humidity. in order to remove completely coating which took in rust under some conditions like [ when not drying coating completely ] -- the surface -- brush credit -- or -- not coming -- To fall down -- required or there is a certain thing. Although it is not completely clear, a coating constituent soaks into rust and follows, and rust or the exact mechanism which is taken into coating and can be cut now from golden M table W is a Jl< tr coconut about the body to This talent] or 1, When it comes to separate from usual state And this or Cryolysis automatically to Dry - (Support) Make it perfect, it is [ Coach, Inc. which includes rust by the film formation nature of coating, or ] Thought ' Gills] To. The following fruit and eight examples mean explaining this invention, or do not limit this range. The substance which Geng showed as VAZO52 in the example of :" is a Beginning agent about product azo [ made by Svon ] iso Butyro valeronitrile lj4. EXAMPLE --] ] 8-g commercial copolymer poly (acting as methylvinyl Acetic acid etherate Ma - in @)-cancer Tresso (Gantrez) A, and N] 80 g of distilled water was added for 39 and G Niev condominium roux In products to the bottle made from way U, with a Eagle pig in people. At room temperature, it shook and mixed the bottle until it was obtained in the transparent solution in which Mercy and perfect hydrolysis are shown at Lifting and Machine. :solid:20 *0%KPromise7+]07 which conducted Polymer Solubility ill Nana analysis and obtained the following result. 8 Acid value: 643 *43(Theoretical value: 648.56)pH: 2.9 Brookfield viscosity: The 9]+100pf20% surface was covered by rust -, using a dangerous doctor knife level on all the sheet subjects of black iron (blackiron) of gauge 28 --] and 27 ma+J1 -- it covered in the layer of the copolymer solution of 63 mm width. Covered metal was Selection(ed) all night long. The weak film confirmed burying rust firmly in the film which was separated completely and separated from the metal substrate in the next morning. There was no rust completely on the surface of metal. EXAMPLE 35-g commercial poly (Ethnico maleic anhydride) - 65 g of distilled water was added for EMA2] and Mon Sand chemical company products - to screw Twin in ON. A crime is put on A gay and Machine and transparent solution is f!l@ Succeeded to To in A and others at room temperature about a mixture. Polymer solution is analyzed and it is A as It was' (b object +33.34%) about the following result. Value: Fi 6.6 e;411i : 9 7 2.=1. 4. f JJji■ -- self-A i / 4:977.6+1pH''2.8 Brookfield viscosity: -- it rusted, and the 6920Cp (coming out as it is) surface came out, and was covered using Trade and a doctor knife for black iron No sheet of gauge 28 level on the subject --] and 27 m+J51 -- it covered with the"I * polymer solution of 63 mm width t. Covered gold R was neglected all night long. It confirmed burying rust firmly in the next morning in a weak film or the film which was made perfect for parts and separated from metal. There was no rust completely on the surface of Money. EXAMPLE The 2-liter iron pot which Living V Stirred and was provided with Island, flowing-back Cold warm j A, dregs Entry cut down -, and Degree meter was fully Nokgi(ed) with nitrogen. Order Charged which is the next at an iron pot: 840.09 toluene 2 !. 34.09 Maleic Anhydrides 64.59 acetic acid vinyl It reaches. 3 VAZO52 [ *0 Person ] Thread was heated to 65 degreeC and it kept at these stomach +L9 for 15 minutes. Then, while putting the acetic acid vinyl of 193*57 into the tap funnel and Venus(ing) gentle with music into anti-R4 and a mixture at 1:00, it added. this humidity was further maintained] time after the end of Addiction, and, subsequently VAZO52 of 0.5 person was added. Humidity was maintained at 65 degreeC, and o and addition of VAZO52 of 59 were repeated until the negative result was obtained about the maleic anhydride by two partitions during] time, and examination. a Filtration exception carries out polymer slurry and rank next -- the lump was again slurry-ized in 6.00 ml of methylene chloride. slurry --] 72-hour room temperature -- large -- mix and rank next -- it carried out another. It is type union classified by Filtration 3 time ] (it washed by the methylene chloride of ] 07nl, and dried by 80 degreein following Stomach vacuum C.) analysis of moon 1 union -- the next 'IIU person It was. Solid: 98.58%1 Acid Part +: 604. (88 ↓; (A l'I'j: Iz a straw raincoat 6 Fll, 12) this polymer of 35 g of the following Stomach was I(ed), and it put into the bottle made from a crow with a pig, and added 65 g of distilled water.) putting a bottle on A gay and Uhu -- dInnocence\delta and Astray -- the transparent solution in which perfect hydrolysis is shown -- up to Prowess] To -- p- (person Up -- S.) ■ 1 union solution is analyzed and it is in season in the next Scallop -- solid: 34.97% Value: 3 LT Acid part ■: 2] 0.28 The Brookfield viscosity, 34 et al. (the +1.3832 surface uses a tffi Kidji lid- knife for the subject ground for the sheet of black button , of gauge 28 covered with rust level 1 ohm (]%) of I Cp Relative humidity, and it is].) It covered in "layer of the copolymer solution of 27 Fight 63 mm width. Covered Money was Bathe(ed) all night long. It is Rust in the film which the weak film separated completely and separated from the golden N substrate in the next morning? It confirmed burying firmly. There was no Torture in the modern surface completely. EXAMPLE ') -- hand flith of lL4E and Example] -- poly (methylvinyl Ethero-ko anhydrous mullein -- harsh) of Example] -- rather -- poly (Ethyl vinyl ether - Kon seaweed maleic acid) Mata -- poly (a front 1iZ substance should make propyl vinyl ether~Cau anhydrous mullein Drunken distance body) using for using and carrying out this invention -- last . It can do [ performing / in a similar manner / a feel of example 3 of operation using vinyl pro Pionat rather from operation and the acetic acid vinyl of Example 3, or ]. Although this invention was [I Made into that suitable example and being stated to Samurai, to be able to make change and correction of many Tooth, without disobeying the soul of this invention and example sigma1. will be consented by the person skilled in the art.