CN1208410C - Priming paint for pre-coating coiled material - Google Patents
Priming paint for pre-coating coiled material Download PDFInfo
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- CN1208410C CN1208410C CN 03132291 CN03132291A CN1208410C CN 1208410 C CN1208410 C CN 1208410C CN 03132291 CN03132291 CN 03132291 CN 03132291 A CN03132291 A CN 03132291A CN 1208410 C CN1208410 C CN 1208410C
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Abstract
The present invention relates to bottom paint for pre-coating coiled materials. The bottom paint is mixture which is formed by the uniform stir of 5 to 30 wt% of epoxy resin or modified epoxy resin whose molecular weight is from 400 to 30000, 5 to 30 wt% of polyisocyanate, 35 to 89% of pigment slurry containing corrosion-proof pigment and 0.1 to 5.0 wt% of auxiliary agent in a solvent, wherein the polyisocyanate is fully sealed by at least two kinds of sealants with active hydrogen, and 2 to 55 wt% of the-NCO radical of the polyisocyanate is sealed by polyether sealant; the corrosion-proof pigment accounts for 5 to 95 wt% of the total pigment. The paint looks like colored viscous liquid. The present invention has the characteristics that the coating-4 viscosity at 23 DEG C is from 20 to 200 seconds, and the solid content is from 40 to 70%. The paint is directly coated on galvanized sheets and is baked at 200 to 260DEGC for 20 to 90 seconds to be formed into dry films whose thickness is from 3 to 10 mum. The present invention also has the characteristics that salt fog does not foam in 500 hours, and the unidirectional corrosion is smaller than or equal to 2mm.
Description
Technical field
The present invention relates to a kind of pre-coated coil priming paint.
Background technology
Pre-coated coil enters industrialization so far from nineteen forties, and its consumption constantly enlarges.Precoated coil coating is also along with the extensive application of pre-coated coil constantly develops.Along with the use range of pre-coated coil and the continuous expansion in field, also more and more higher with the performance requriements of coating to pre-coated coil.Particularly the requirement to the anti-corrosion capability of coating constantly promotes, and therefore, the priming paint of exploitation salt spray resistance excellence seems and is even more important.It is 140～1000 Resins, epoxy that European patent 187760 discloses a kind of primary amine or quaternary amine modified epoxy equivalent of adopting, mix with isocyanic ester that to obtain high-solid level, solidification value be that 120～163 ℃, set time are 900～1800 seconds onepot coating, it can be used as vehicle paint base and coil coating priming paint, has suitable anti-stone and hits performance.When but this coating was used as pre-coated coil priming paint, 200～260 ℃ of bakings 20～90 seconds, when forming the dry film of the low thickness of 3～10 μ m, its salt spray resistance can't reach 500 hours requirement.
Summary of the invention
The objective of the invention is to, a kind of pre-coated coil priming paint is provided, it directly is coated on the galvanized sheet, 200～260 ℃ were toasted 20～90 seconds, form the dry film of 3～10 μ m thickness, it is non-foaming that this dry film can reach 500 hours salt fogs, the index request of unidirectional corrosion≤2mm.
The technical scheme that realizes the object of the invention is: a kind of pre-coated coil priming paint, it is that molecular weight is 400～30000 Resins, epoxy or is 400～30000 Resins, epoxy 5～30% through the molecular weight of modification, the totally enclosed polyisocyanates 5～30% of encapsulant with at least two kinds of band reactive hydrogens, the pigment slurry 35～89% that contains corrosion-inhibiting pigment, and auxiliary agent 0.1～5.0%, the mixture that in solvent, mixes, its outward appearance is colored viscous liquid, 23 ℃ are coated with-4 glasss of viscosity is 20～200 seconds, solid is divided into 40～70%, above-mentioned percentage number average is with solid weight meter, wherein polyisocyanates-2～55% being sealed of NCO base by the polyethers encapsulant; Corrosion-inhibiting pigment accounts for 5～95% of pigment total amount.
Above-mentioned priming paint, described molecular weight are that 400～30000 Resins, epoxy is to be that 400～30000 bisphenol A epoxide resin dissolution with solvents is a liquid state with molecular weight, directly use; Described modified epoxy is to be after 400～30000 bisphenol A epoxide resin dissolution with solvents is liquid state, with amine or acid compounds, to form through ring-opening reaction with ordinary method with molecular weight again, and its open loop ratio accounts for 20～100% of total epoxy equivalent (weight).Described molecular weight is that 400～30000 bisphenol A epoxide resin is the bisphenol A epoxide resin with same molecular amount, or has the mixture of the bisphenol A epoxide resin of different molecular weight; Making the used amine of modified epoxy is diethylamine, dibutylamine, Monoethanolamine MEA BASF, diethanolamine, Mono Methyl Ethanol Amine, ehtylethanolamine, quadrol, hexanediamine, diethylenetriamine, triethylene tetramine, polymeric amide or their mixture; Making the used acid compounds of modified epoxy is linolenic acid, eleostearic acid, cocinic acid, ricinolic acid, Tetra hydro Phthalic anhydride, Tetra Hydro Phthalic Anhydride or phosphoric acid.
Above-mentioned priming paint, described totally enclosed polyisocyanates is by polyisocyanates, with the encapsulants of at least two kinds of band reactive hydrogens, in the presence of catalyzer, reacts to nco value with ordinary method and to make less than 0.5%.The polyisocyanates that is used to prepare totally enclosed polyisocyanates is tripolymer, '-diphenylmethane diisocyanate, liquefaction '-diphenylmethane diisocyanate, poly methylene poly phenyl poly isocyanate, the hexa-methylene-1 of tolylene diisocyanate, tolylene diisocyanate, 6-vulcabond, hexa-methylene-1, the tripolymer of 6-vulcabond, isophorone diisocyanate, Trimerization of Isophorone Diisocyanate body, trimethylammonium hexamethylene diisocyanate, dicyclohexyl methane diisocyanate, xylylene diisocyanate, or their mixture; The encapsulant that is used for preparing the band reactive hydrogen of totally enclosed polyisocyanates is the mixture of at least two kinds of alcohols, pure ethers, phenols, amides, ketoxime class, malonic ester class or polyethers.Alcohols as encapsulant is ethanol, butanols, amylalcohol, hexanol or octanol; The alcohol ethers is ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol ether, Diethylene Glycol butyl ether or propylene glycol monomethyl ether; Phenols is phenol, m-nitrophenol, para-chlorophenol or pyrocatechol; Amides is a hexanolactam; The ketoxime class is methyl ethyl ketoxime or cyclohexanone-oxime; The malonic ester class is methyl aceto acetate, diethyl malonate or methyl ethyl diketone; Polyethers is dihydroxyl polyoxygenated propyl ether, trihydroxy-polyoxygenated propyl ether, polytetrahydrofuran dibasic alcohol, polycaprolactone polyol or polycarbonate diol.
Above-mentioned priming paint, described pigment slurry be by pigment with base paint formulation in Resins, epoxy or the identical resin of modified epoxy, solid weights ratio by 1: 20～5: 1 mixes, dispersion grinding to fineness is made less than 10 μ m, corrosion-inhibiting pigment wherein is chromic salt, phosphoric acid salt, nitrite, molybdate, plumbite or tungstate, and remaining pigment is titanium white, phthalocyanine blue, carbon black, red iron oxide, medium chrome yellow medium yellow, lime carbonate, barium sulfate, talcum powder or china clay.
Above-mentioned priming paint, described auxiliary agent are one or more in dispersion agent, siccative, flow agent, anti-settling agent or the defoamer.
Above-mentioned priming paint, described solvent are benzene,toluene,xylene or the high boiling aromatic hydrocarbon solvents in the arene; Sherwood oil in the fat hydrocarbon, industrial naptha or hexanaphthene; Ethanol in the alcohols, butanols, amylalcohol, hexanol or octanol; Ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol ether, Diethylene Glycol butyl ether or propylene glycol monomethyl ether in the alcohol ethers; Acetone in the ketone, methylethylketone, pimelinketone or diacetone alcohol; Ethyl acetate in the ester class, butylacetate or hexyl acetate.
Technique effect of the present invention: after adopting technical scheme of the present invention, totally enclosed polyisocyanates in this base paint formulation, its isocyanic ester-have in the NCO base 2～55% to be sealed by the polyethers encapsulant, adjusted the snappiness after the priming paint film forming like this, make it to satisfy the requirement of pre-coated coil.Simultaneously, determined molecular weight is 400～30000 Resins, epoxy or modified epoxy in the prescription, cooperate with the pigment slurry that has used the corrosion-inhibiting pigment that contains proper ratio, finally guaranteed gained pre-coated coil priming paint, thin build at 3～10 μ m, it is non-foaming that salt spray resistance reaches 500 hours salt fogs, unidirectional corrosion≤2mm (referring to table 8).
Embodiment
Below in conjunction with embodiment the present invention is further described in detail, but is not limited to this.
The totally enclosed polyisocyanates of embodiment 1 preparation
1. prescription sees Table 1
Table 1
| Component | Raw material | Consumption (kg) | |
| Title | Specification | ||
| Polyisocyanates | TDI (tolylene diisocyanate) | Industrial goods 2,4 bodies or mixture | 174 |
| The encapsulant of band reactive hydrogen | Phenol | Industrial goods | 141 |
| Polyethers N-220 (dihydroxyl polyoxygenated propyl ether) | Industrial goods | 500 | |
| Catalyzer | Dibutyl tin laurate | Analytical pure | 1 |
| Solvent | Dimethylbenzene | Industrial goods, dehydration | 184 |
2. technology
In the clean reactor that thermometer, agitator, reflux exchanger, header tank are housed, press table 1 formula ratio and add dimethylbenzene, TDI and dibutyl tin laurate, stir, then add phenol,, make temperature of reaction be lower than 50 ℃ with the frozen water insulation, being incubated 2～3 hours guarantees to react completely, add polyethers N-220 then, be warmed up to 100～120 ℃, be incubated 2～3 hours, measure nco value less than 0.5% o'clock, it is qualified to be, cooling, discharging, and it is standby to keep in Dark Place.The totally enclosed polyisocyanates of gained, its solid be divided into 81.6%, 25%-the NCO base sealed by polyethers N-220.
Embodiment 2 preparation liquid bisphenol A Resins, epoxy
1. prescription sees Table 2
Table 2
| Component | Raw material | Consumption (kg) | |
| Title | Specification | ||
| Bisphenol A epoxide resin | Araldite GT6099 (RESOLUTION company product) | Molecular weight 5990 | 500 |
| Solvent | Ethylene glycol butyl ether | Industrial goods | 250 |
| Dimethylbenzene | Industrial goods | 250 | |
2. technology
In the clean reactor that thermometer, agitator, reflux exchanger, header tank are housed, drop into bisphenol A epoxide resin, ethylene glycol butyl ether, dimethylbenzene successively by table 2 formula ratio, intensification is until backflow occurring, be incubated 2～3 hours, take a sample to check, do not have that obvious epoxy particles can be lowered the temperature, discharging, it is standby to keep in Dark Place.Gained liquid bisphenol A Resins, epoxy, its solid is divided into 50%.
Embodiment 3 modified bisphenol A epoxy resins
1. prescription sees Table 3
Table 3
| Component | Raw material | Consumption (kg) | |
| Title | Specification | ||
| Bisphenol A epoxide resin | Embodiment 2 | Self-control | 1000 |
| Properties-correcting agent | Dibutylamine | Industrial goods | 17.28 |
| Catalyzer | Dibutyl tin laurate | Industrial goods | 1 |
2. technology
In the clean reactor that thermometer, agitator, reflux exchanger, header tank are housed, add liquid bisphenol A Resins, epoxy, dibutyl tin laurate, the dibutylamine that obtains by embodiment 2 methods successively by table 3 formula ratio, be warmed up to 80～90 ℃, be incubated 2 hours, be warmed up to 110～120 ℃ again, be incubated 2～3 hours, cooling, discharging, it is standby to keep in Dark Place.The dibutylamine open loop 80% of gained modified epoxy, solid is divided into 50.8%.
Embodiment 4 preparation pigment slurry A
1. prescription sees Table 4
Table 4
| Component | Raw material | Consumption (kg) | |
| Title | Specification | ||
| Bisphenol A epoxide resin | Embodiment 2 | Self-control, solids constituent 50% | 200 |
| Pigment | Titanium white (Kronos2310) | Rutile-type, Kronos company produces | 150 |
| Zinc phosphate (corrosion-inhibiting pigment) | Industrial goods | 250 | |
| Dispersion agent | BYK180 | BYK company produces | 8 |
| Wherein, corrosion-inhibiting pigment accounts for 62.5% of total pigment weight, and resin-pigment ratio is 4: 1. | |||
2. technology
In the scuffing of cylinder bore of cleaning, add liquid bisphenol A Resins, epoxy, titanium white, zinc phosphate and the BYK180 that makes by embodiment 2 methods successively by table 4 formula ratio, disperse with high speed dispersor, logical simultaneously cooling water control temperature is below 40 ℃, measure fineness after 1 hour, reach 10 μ m and get final product discharging, it is standby to keep in Dark Place.
Embodiment 5 preparation pigment slurry B
1. prescription sees Table 5
Table 5
| Component | Raw material | Consumption (kg) | |
| Title | Specification | ||
| The modified bisphenol A epoxy resin | Embodiment 3 | Self-control, solids constituent 50.8% | 200 |
| Pigment | Titanium white (Kronos2310) | Rutile-type, Kronos company produces | 250 |
| 109 zinc yellows (corrosion-inhibiting pigment) | Industrial goods | 150 | |
| Dispersion agent | BYK180 | BYK company produces | 8 |
| Wherein, corrosion-inhibiting pigment accounts for 37.5% of total pigment weight, resin-pigment ratio 4: 1. | |||
2. technology
In the scuffing of cylinder bore of cleaning, add modified bisphenol A epoxy resin, titanium white, zinc yellow and the BYK180 that makes by embodiment 3 methods successively by table 5 formula ratio, disperse with high speed dispersor, logical simultaneously cooling water control temperature is below 40 ℃, measure fineness after 1 hour, reach 10 μ m and get final product discharging, it is standby to keep in Dark Place.
Embodiment 6 preparation pre-coated coil priming paint A
1. prescription sees Table 6
Table 6
| Component | Raw material | Consumption | ||
| Title | Specification | Weight (kg) | With the shared per-cent of solid weight meter (%) | |
| Resins, epoxy | Embodiment 2 | Self-control, solids constituent 50% | 107 | 10.49 |
| Totally enclosed polyisocyanates | Embodiment 1 | Self-control, solids constituent 81.6% | 147 | 23.53 |
| Pigment slurry | Embodiment 4 | Self-control, solids constituent 83.6% | 401 | 65.74 |
| Auxiliary agent | Dibutyl tin laurate (siccative) | Analytical pure | 1.2 | 0.24 |
| Solvent | Ethylene glycol butyl ether | Industrial goods | 150 | |
| Dimethylbenzene | Industrial goods | 150 | ||
2. technology
In the paint still of cleaning, the liquid bisphenol A Resins, epoxy of the polyisocyanates of the embodiment 1 of input table 6 formula ratios, embodiment 2, pigment slurry, dibutyl tin laurate and the solvent of embodiment 4 successively, stir, filter, be packaged to be pre-coated coil priming paint A, its solid is divided into 53.0%, viscosity is 105 seconds (being coated with-4 glasss, 23 ℃).
Embodiment 7 preparation pre-coated coil priming paint B
1. prescription sees Table 7
Table 7
| Component | Raw material | Consumption | ||
| Title | Specification | Weight (kg) | With the shared per-cent of solid weight meter (%) | |
| Modified epoxy | Embodiment 3 | Self-control, solids constituent 50.8% | 215.8 | 19.49 |
| Totally enclosed polyisocyanates | Embodiment 1 | Self-control, solids constituent 81.6% | 144.2 | 20.92 |
| Pigment slurry | Embodiment 5 | Self-control, solids constituent 83.6% | 399 | 59.32 |
| Auxiliary agent | Dibutyl tin laurate (siccative) | Analytical pure | 1.5 | 0.27 |
| Solvent | Ethylene glycol butyl ether | Industrial goods | 150 | |
| Dimethylbenzene | Industrial goods | 150 | ||
2. technology
By above-mentioned table 7 formula ratio, make pre-coated coil priming paint B with the same procedure of embodiment 6, its solid is divided into 53.0%, and viscosity is 105 seconds (being coated with-4 glasss, 23 ℃).
The model preparation of embodiment 8 priming paint A
After the pre-treatment of galvanized sheet surface through degreasing, cleaning, activation, oven dry, apply the priming paint A of embodiment 6 preparations, applying used line plate is No. 6 line rods of RDS.Galvanized sheet after the coating toasted 45 seconds in 250 ℃ of baking ovens, and the gained build is 6 μ m.
The model preparation of embodiment 9 priming paint B
Except that using the priming paint B of embodiment 7, all the other are all with embodiment 8.
Embodiment 10 salt mist experiments
The model of embodiment 8 and 9 preparations is drawn fork with pocket knife, guarantee to expose base material, adopt following method to carry out salt mist experiment then: model is placed on continuously with 1kg/cm
2Pressure is in 35 ℃ of salt fog cabinets of 24 hours continuous injection 5%NaCl brinish.Place after 500 hours, adopt following method to come the evaluation of corrosion situation.
1. the plate face bubbles: account for the ratio of the total area according to ASTMD714-56 foaming area, assess with 5～0: 5:0%; 4:＜0.2%; 3:＜0.5%; 2:＜1%; 1:＜3%; 0:＜3%
2. plate face rust spot: account for the ratio of the total area according to ASTM714-56 rust spot area, with 5～0 assessments.5：0％；4：＜0.2％；3：＜0.5％；2：＜1％；1：＜3％；0：＜73％
3. corrosion width: measure the slant range of maximum width, with reference to following corresponding method assessment: 5:＜1mm from line to corrosion; 4:1～2mm; 3:2～4mm; 2:4～7mm; 1:7～10mm; 0:＞10mm.
Salt mist experiment result by above-mentioned criterion evaluation priming paint A (embodiment 8) and priming paint B (embodiment 9) model sees Table 8
Table 8
| Priming paint | The plate face | Draw the fork place | Amount to | |
| Bubble | Rust spot | |||
| Embodiment 8 | 5 | 4 | 4 | 13 |
| Embodiment 9 | 5 | 4 | 4 | 13 |
By table 8 data as seen, through 500 hours salt mist experiments, priming paint A and priming paint B comprehensive anticorrosive erosion performance were near best level (15), and the plate face does not have foaming, and plate face rust spot accounts for ratio＜0.2% of the total area, corrosion width≤2mm.
Claims (9)
1, a kind of pre-coated coil priming paint, it is characterized in that: it is that molecular weight is 400～30000 Resins, epoxy or is 400～30000 Resins, epoxy 5～30% through the molecular weight of modification, the totally enclosed polyisocyanates 5～30% of encapsulant with at least two kinds of band reactive hydrogens, the pigment slurry 35～89% that contains corrosion-inhibiting pigment, and auxiliary agent 0.1～5.0%, the mixture that in solvent, mixes, its outward appearance is colored viscous liquid, 23 ℃ are coated with-4 glasss of viscosity is 20～200 seconds, solid is divided into 40～70%, above-mentioned percentage number average is with solid weight meter, wherein polyisocyanates-2～55% being sealed of NCO base by the polyethers encapsulant; Corrosion-inhibiting pigment accounts for 5～95% of pigment total amount.
2, priming paint according to claim 1 is characterized in that: described molecular weight is that 400～30000 Resins, epoxy is to be that 400～30000 bisphenol A epoxide resin dissolution with solvents is a liquid state with molecular weight, directly uses; Described modified epoxy is to be after 400～30000 bisphenol A epoxide resin dissolution with solvents is liquid state, with amine or acid compounds, to form through ring-opening reaction with ordinary method with molecular weight again, and its open loop ratio accounts for 20～100% of total epoxy equivalent (weight).
3, priming paint according to claim 2 is characterized in that: described molecular weight is that 400～30000 bisphenol A epoxide resin is the bisphenol A epoxide resin with same molecular amount, or has the mixture of the bisphenol A epoxide resin of different molecular weight; Making the used amine of modified epoxy is diethylamine, dibutylamine, Monoethanolamine MEA BASF, diethanolamine, Mono Methyl Ethanol Amine, ehtylethanolamine, quadrol, hexanediamine, diethylenetriamine, triethylene tetramine, polymeric amide or their mixture; Making the used acid compounds of modified epoxy is linolenic acid, eleostearic acid, cocinic acid, ricinolic acid, Tetra hydro Phthalic anhydride, Tetra Hydro Phthalic Anhydride or phosphoric acid.
4, priming paint according to claim 1 is characterized in that: described totally enclosed polyisocyanates is by polyisocyanates, with the encapsulants of at least two kinds of band reactive hydrogens, in the presence of catalyzer, reacts to nco value with ordinary method and to make less than 03%.
5, priming paint according to claim 4, it is characterized in that: the polyisocyanates that is used to prepare the polyisocyanates of gold sealing is a tolylene diisocyanate, the tripolymer of tolylene diisocyanate, '-diphenylmethane diisocyanate, the liquefaction '-diphenylmethane diisocyanate, poly methylene poly phenyl poly isocyanate, hexa-methylene-1, the 6-vulcabond, hexa-methylene-1, the tripolymer of 6-vulcabond, isophorone diisocyanate, the Trimerization of Isophorone Diisocyanate body, the trimethylammonium hexamethylene diisocyanate, dicyclohexyl methane diisocyanate, xylylene diisocyanate, or their mixture; The encapsulant that is used for preparing the band reactive hydrogen of totally enclosed polyisocyanates is the mixture of at least two kinds of alcohols, pure ethers, phenols, amides, ketoxime class, malonic ester class or polyethers.
6, priming paint according to claim 5 is characterized in that: the alcohols as encapsulant is ethanol, butanols, amylalcohol, hexanol or octanol; The alcohol ethers is ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol ether, Diethylene Glycol butyl ether or propylene glycol monomethyl ether; Phenols is phenol, m-nitrophenol, para-chlorophenol or pyrocatechol; Amides is a hexanolactam; The ketoxime class is methyl ethyl ketoxime or cyclohexanone-oxime; The malonic ester class is methyl aceto acetate, diethyl malonate or methyl ethyl diketone; Polyethers is dihydroxyl polyoxygenated propyl ether, trihydroxy-polyoxygenated propyl ether, polytetrahydrofuran dibasic alcohol, polycaprolactone polyol or polycarbonate diol.
7, priming paint according to claim 1, it is characterized in that: described pigment slurry be by pigment with base paint formulation in Resins, epoxy or the identical resin of modified epoxy, solid weights ratio by 1: 20～5: 1 mixes, dispersion grinding to fineness is made less than 10 μ m, corrosion-inhibiting pigment wherein is chromic salt, phosphoric acid salt, nitrite, molybdate, plumbite or tungstate, and remaining pigment is titanium white, phthalocyanine blue, carbon black, red iron oxide, medium chrome yellow medium yellow, lime carbonate, barium sulfate, talcum powder or china clay.
8, priming paint according to claim 1 is characterized in that: described auxiliary agent is one or more in dispersion agent, siccative, flow agent, anti-settling agent or the defoamer.
9, priming paint according to claim 1 is characterized in that: described solvent is benzene,toluene,xylene or the high boiling aromatic hydrocarbon solvent in the arene; Sherwood oil in the fat hydrocarbon, industrial naptha or hexanaphthene; Ethanol in the alcohols, butanols, amylalcohol, hexanol or octanol; Ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol ether, Diethylene Glycol butyl ether or propylene glycol monomethyl ether in the alcohol ethers; Acetone in the ketone, methylethylketone, pimelinketone or diacetone alcohol; Ethyl acetate in the ester class, butylacetate or hexyl acetate.
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| CN 03132291 CN1208410C (en) | 2003-08-08 | 2003-08-08 | Priming paint for pre-coating coiled material |
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| CN 03132291 CN1208410C (en) | 2003-08-08 | 2003-08-08 | Priming paint for pre-coating coiled material |
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| CN1208410C true CN1208410C (en) | 2005-06-29 |
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| CN1318527C (en) * | 2004-05-27 | 2007-05-30 | 解居会 | Coiled material finish coating and preparing method thereof |
| CN100369990C (en) * | 2005-12-16 | 2008-02-20 | 李巍 | High efficient corrosive-proof paint |
| CN101402821B (en) * | 2008-09-25 | 2011-09-14 | 江泽平 | 100 DEG C oven dry cationic environment friendly watersoluble epoxy-corrosion protection paint base system |
| CN101885831B (en) * | 2010-07-14 | 2012-01-25 | 中国海洋石油总公司 | Preparation method of polyester modified epoxy resin for household electroplate primer |
| CN103820006B (en) * | 2014-02-28 | 2017-01-11 | 北京东方雨虹防水技术股份有限公司 | Coating for TPO surface treatment and preparing method thereof |
| CN104629584A (en) * | 2015-02-04 | 2015-05-20 | 浙江天女集团制漆有限公司 | Undercoat made from chain-extended epoxy resin and preparation method thereof |
| CN104830203B (en) * | 2015-05-22 | 2017-07-14 | Ppg涂料(天津)有限公司 | The high anti-corrosion rapid-curing cutback epoxy coating composition of one pack system |
| TW201726826A (en) * | 2015-11-16 | 2017-08-01 | 藍色立方體有限責任公司 | Primer coatings |
| CN109913080A (en) * | 2017-12-13 | 2019-06-21 | 深圳市百安百科技有限公司 | A kind of novel solvent-free electrostatic conductive anticorrosion paint |
| CN109111820A (en) * | 2018-07-09 | 2019-01-01 | 广州立邦涂料有限公司 | Winding steel paint base composition of trimming salt spray resistance and preparation method thereof |
| CN109385183B (en) * | 2018-10-26 | 2021-06-15 | 黄河三角洲京博化工研究院有限公司 | Water-based epoxy primer for precoating coiled material and preparation method thereof |
| CN110256939B (en) * | 2019-07-02 | 2021-06-29 | 中国科学院宁波材料技术与工程研究所 | Anticorrosive paint for marine concrete protection and preparation method and application thereof |
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