CN1189850A - Scratch-resistant coating composition - Google Patents
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- CN1189850A CN1189850A CN96195179A CN96195179A CN1189850A CN 1189850 A CN1189850 A CN 1189850A CN 96195179 A CN96195179 A CN 96195179A CN 96195179 A CN96195179 A CN 96195179A CN 1189850 A CN1189850 A CN 1189850A
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Abstract
A coating composition comprising a crosslinkable binder in an organic solvent, the binder composed of acrylic and polyester polyols plus a crosslinking agent, the polyester polyol containing a component derived from one or both of: a residue of dimer fatty acid and polyol, or residue of a polyacid and dimer alcohol, the composition being useful for coating metallic substrates.
Description
The background of invention
FIELD OF THE INVENTION
The present invention relates to contain the coating composition that the metal of propylene acid polyol, polyester polyol and linking agent is used.
Technology status
Coating composition of the present invention is mainly used in metal substrate, especially for vehicle, and for example car and truck.Such coating will be protected ground and attractive aesthstic the covering with paint will be provided.Which floor dope layer general vehicle has.General at first being coated in antirust inorganic phosphate zinc or tertiary iron phosphate forms coating on the ground, apply electrodeposited primer or chipping primer again on this coating.Not necessarily, in order to obtain better outward appearance and to improve sticking power, can apply surfacer.On priming paint, apply base coat or the coloured coating that contains pigment then.General base coat or coloured coating can contain sheet metal, so that metallic finishes to be provided.In order to protect and keep the colored aesthetic quality of covering with paint, lacquer, colour wash, etc., often apply transparent (not containing pigment) finish paint on the base coat of pigment containing, to protect this base coat, even under secular weathering age situation, also can provide this protection.Clear coating mainly is based on such technology, and tackiness agent wherein is the acrylic resin with the crosslinked hydroxyl-functional of oxyalkylated melamine formaldehyde (MF) adducts.Bump after wetland is coated on the base coat wet, generally ± 130 ℃ of this coatings of baking down.Because the suggestion of several fields, so the car paint industrial requirements is improved the resistance to marring of Clear coating.
Have been found that coating composition of the present invention provides the resistance to marring of wanting especially for the metal substrate paint-on technique.Characteristic outside this improvement also has good weathering resistance, chemical-resistant, water tolerance, erosion resistance and mechanical property.These improved performances are from the interaction between how pure and mild polyester polyol of selecting of vinylformic acid and the linking agent selected for use.More particularly, these improved performances are from the acid/alkoxide component of the dimerization of the polyester polyol that below will narrate in more detail.
The summary of invention
Coating composition of the present invention is a kind of crosslinkable tackiness agent in organic solvent, and this tackiness agent of binding agent based gross weight contains following component:
I) the propylene acid polyol of about 15-70%, the weight-average molecular weight of this many alcohol are about 250040000, and hydroxyl value is about 50-180mgKOH/g, and second-order transition temperature is-30 to 70 ℃;
The ii) polyester polyol that not necessarily replaces of about 5-60%, the weight-average molecular weight of this many alcohol are about 2000-80000, hydroxyl value is about 50-220mgKOH/g; This polyester polyol contain at least about 10% weight following a), b) and c) at least a hydrogenation reaction product: a) dimer (fatty acid) yl and polyvalent alcohol, b) alcohol of polyprotonic acid and dimerization, and c) alcohol of dimer (fatty acid) yl and dimerization, reaction product contain at least two groups that are selected from acid and alcohol functional group; And
The iii) linking agent of about 10-60%, this linking agent is selected from least a of oxyalkylated melamine formaldehyde (MF) adducts and polyisocyanates (can be end capped).
Preferred compositions is that the molecular weight of propylene acid polyol wherein is 3000-10000, and hydroxyl value is 80-150, and second-order transition temperature is those compositions of-10 to 50 ℃.It also is preferred having following combination of features thing: propylene acid polyol wherein contains at least one trialkoxysilyl or urethane groups; The molecular weight of polyester polyol wherein is 2500-15000, and hydroxyl value is 100-170, contains to account for being selected from a) of the about 30-60% of polyester polyol weight, b) and hydrogenation reaction product c); Polyester polyol wherein contains at least a substituting group that is selected from trialkoxysilyl and urethane groups; Binder constitutes solvent wherein and the about 20-85% of binder wt; Polyester polyol wherein contains at least 10% hydrogenation reaction product.
Most preferred composition is those compositions that contain propylene acid polyol, polyester polyol and oxyalkylated melamine formaldehyde (MF) adducts in single-component system.Such system can contain end capped polyisocyanates.Other composition is a bicomponent system, and this system contains the how pure and mild polyester polyol of vinylformic acid in a component, contain not end capped polyisocyanates in second component.Coating of the present invention can be used for comprising the finish paint of the metal substrate of vehicle and outdoor structure.This finish paint can be transparent (not containing pigment) or can contain pigment.
A), b) and c) described in dimer (fatty acid) yl and each of the alcohol of dimerization all contain at least 34 carbon atoms.In addition, a), b) and each hydrogenation reaction product c) can contain the polyprotonic acid and the polyvalent alcohol of significant quantity, the trimeric acid and the trimeric alcohol that will be used by person skilled in the art in this technology for example.
Of the present invention being described in detail
Tackiness agent described in the present invention has improved the elasticity of Clear coating under situation the about outward appearance of coating and other performances not being had a negative impact.The outward appearance that final coloured coating-Clear coating is covered with paint, lacquer, colour wash, etc. depends on the etch of clear lacquer tackiness agent to base coat to a great extent.Should be realized that vibrin can be more much bigger than acrylic resin to the etch of base coat.This etch causes the dissolving again of base coat, causes the surface irregularity of final covering with paint, lower gloss and lower transparency.Because the lower molecular weight and the high hydroxyl value of oligopolymer are so this negative impact is more obvious for oligopolymer.Yet so just hydroxylated polyester has improved the elasticity of final crosslinked prescription, and the result has improved resistance to marring.The tackiness agent that uses in the coating of the present invention has improved outward appearance (less base coat etch) under situation about other performance of Clear coating not being had a negative impact.
Propylene acid polyol (i)
Can obtain the propylene acid polyol by the monomer that makes hydroxyl and other monomer copolymerization that is usually used in the acrylic acid synthesizing coating resin.The monomer of above-mentioned hydroxyl for example is Hydroxyethyl acrylate, hydroxyethyl methylacrylate, Propylene glycol monoacrylate, Rocryl 410, vinylformic acid hydroxy butyl ester etc.Above-mentioned other monomer for example is following these monomers:
C
1-18The acrylate of monohydroxy-alcohol, for example methyl acrylate, butyl acrylate, 2-EHA;
C
1-18The methacrylic ester of monohydroxy-alcohol, for example methyl methacrylate, butyl methacrylate, methacrylic acid 2-ethylhexyl;
The acrylate of cyclic aliphatic monohydroxy-alcohol or methacrylic ester, for example cyclohexyl methacrylate, isobornyl methacrylate, vinylformic acid 3-methyl cyclohexanol ester;
The acrylate of aromatics monohydroxy-alcohol or methacrylic ester, for example phenyl methacrylate, benzyl acrylate;
Vinyl aromatic compounds, for example vinylbenzene, Vinyl toluene, t-butyl styrene;
Nitrile monomer, for example vinyl cyanide;
Acid functional monomer, for example methylene-succinic acid, vinylformic acid;
Amide functional monomer, for example Methacrylamide, N-butoxymethyl Methacrylamide;
The monomer of silane-functional, for example γ-methacryloyl propyl-triethoxysilicane;
The monomer of glycidyl functional, for example glycidyl methacrylate; And
Other functional comonomer, these monomers comprise methacrylic acid acetoacetoxy groups ethyl ester, methacryloyl ethyl phosphonic acid, perfluoroalkyl acrylate class, perfluoroalkyl methacrylate class etc.
By in solvent or mixed solvent, the polymerization that causes at the free radical of the routine of 60-180 ℃ of temperature range prepares the propylene acid polyol.Typical solvent is aromatic substance, aliphatic cpd, acetate esters, ketone, alcohols and ethers, for example dimethylbenzene, propyl carbinol, petroleum spirit, methyl ethyl ketone, methyl iso-butyl ketone (MIBK) etc.
Can be with azo or peroxide initiator as polymerization starter.The example of azo initiator is with trade(brand)name VAZO
The product that (Du Pont) sells comprises VAZO
67, VAZO
88 etc.The example of peroxide initiator is peroxide ethers, peroxy esters class, for example di-t-butyl peroxide, tert-butyl peroxy acetate, the peroxide 2 ethyl hexanoic acid tert-butyl ester, t-butylperoxy pivarate, peroxidation two tert-pentyls, Peracetic Acid tert-pentyl ester etc.Can control molecular weight with chain-transfer agent.The example of chain-transfer agent is the derivative of halogen and sulphur, for example 2 mercapto ethanol, tetrachloromethane, dodecyl mercaptans etc.
Can prepare the propylene acid polyol with batch process or reinforced method.In reinforced method, monomer, initiator and chain-transfer agent can be added simultaneously or add with the form of multiple spot reinforced (oblique is reinforced).By derivatives chemical being grafted on the method on the tackiness agent main chain, can make this acrylic copolymer modification.The example of this modification is the reaction of lactone, single ether epoxy, single epoxy ester, acid anhydrides and monoprotic acid and hydroxyl, acid and epoxy-functional, the particularly reaction of 6-caprolactone, valerolactone and hydroxy functional group, single epoxy ester is the reaction of tertiary monocarboxylic acid list epoxy ester (Versatic acid mono epoxyester), the single epoxy ester of PIVALIC ACID CRUDE (25) and acid functional group for example, acid anhydrides is the reaction of maleic anhydride, Tetra hydro Phthalic anhydride and hydroxy functional group for example, and monoprotic acid is the reaction of tetradecanoic acid, oleic acid, different n-nonanoic acid and epoxy-functional for example.These reactions can be finished between polymerization period.The method of another kind of modified copolymer is that functional monomer and modified compound are reacted, and then with other monomeric mixture copolymerization.For example, can before copolymerization, make the reaction of Hydroxyethyl acrylate and 6-caprolactone.
Polyester polyol (ii)
By making polyprotonic acid and polyol reaction, and make their experience condensation reactions, can prepare polyester polyol as the principal reaction thing.
The example of monoprotic acid and polyprotonic acid is aromatic acid and acid anhydrides, aliphatic acid and acid anhydrides, cycloaliphatic acids and acid anhydrides.Their representative is: Tetra hydro Phthalic anhydride, m-phthalic acid, hexahydrophthalic anhydride, methyl cyclohexane acid anhydrides, 1,2,4-benzenetricarboxylic anhydride, different n-nonanoic acid, natural monoprotic acid is tall oil lipid acid, hexanodioic acid, dodecane dicarboxylic acid, 1 for example, 4-cyclohexane dicarboxylic acid etc.
The example of polyvalent alcohol is: glycerol, neopentyl glycol, 1,6-hexylene glycol, 2,2-ethyl butyl propanediol, TriMethylolPropane(TMP), monopentaerythritol, cyclohexanedimethanol, 1,2 ethylene glycol etc.
The typical structure of the diacid of long-chain and glycol is made up of the mixture of the dipolymer of linear, cyclic and aromatics, this structrual description can be become following form.Should be realized that, under situation about coating not being had a negative impact, can contain the acid and/or the pure trimer of significant quantity.
Typical useful diacid
Linear dipolymer
The cyclic dipolymer
The dipolymer of aromatics
Typical useful glycol
Linear dipolymer
The cyclic dipolymer
The dipolymer of aromatics
Can also use epoxy ester, ether epoxy, silane derivative, isocyanic ester etc. with the further modification of vibrin.
Linking agent (iii)
Formulation for coating material
Preferably make clear lacquer prescription crosslinked with oxyalkylated melamino-formaldehyde resin.Prepare such linking agent with various mol ratios and molecular weight with melamine, formaldehyde and alcohol.Typical alcohol is methyl alcohol, isopropylcarbinol and propyl carbinol.Oxyalkylated melamino-formaldehyde resin is commercially availabie.
Clear lacquer prescription can also contain other for example end capped polyisocyanates of linking agent, to improve antiacid erosion.End capped polyisocyanates is commercially availabie.Preferably the end capped Trimerization of Isophorone Diisocyanate thing of methyl ethyl ketone oxime is used as auxiliary crosslinking agent.
In clear lacquer composition of the present invention, can also use levelling agent, rheology control agent, UV light absorber, photostabilizer, curing catalysts.Levelling agent is the compound that improves surface property.UV light absorber and photostabilizer comprise benzotriazole derivatives and by Ciba Geigy with trade(brand)name Tinuvin
The hindered amine light stabilizer of selling (HALS).
Curing catalysts can be for example sulfonic acid and a phosphoric acid of strong acid, the metal-salt of zinc and tin, and aminoderivative is dimethylethanolamine, triethylamine etc. for example.Rheology control agent comprises inorganic or organic substance.Inorganic rheology control agent comprises silica derivative and wilkinite.Organically rheology control agent is a non-aqueous dispersions and based on the particle of two ureas, for example by 2 moles of amine and 1 mole of isocyanate reaction acquisition.
The clear lacquer of the present invention is thermofixation, and is generally bumped wetland and be coated on the base coat that contains pigment by wet.Preferably the surface coating technique by routine carries out this coating, and conventional surface coating technique comprises aerial spraying, hydraulic spraying and Electrostatic Spray Technology.The thickness of the clear lacquer preferably is about the 20-80 micron by dry film.Thermofixation preferably under about 80-160 ℃ about 10-40 minute.
Coating composition of the present invention has good tack to various grounds (particularly metal substrate), and these grounds for example are ground, cold-rolled steel sheet, phosphatization steel plate that applied in advance and the steel plate that applied with conventional priming paint by electro-deposition method.Composition of the present invention can also be used for the coating plastic ground, for example polymeric amide of the urethane of polyester enhanced glass fibre, reaction injection molding, partial crystallization etc.
The preparation of propylene acid polyol
Preparation 1
To the popular response device adding 14 parts of aromatic hydrocarbons mixtures (Solvesso100) that agitator, thermometer and reflux exchanger are housed that are used for preparing acrylic resin.Reflux and condition of stirring under this mixture of heating then in 6 hours in this mixture the following monomer mixture of adding: 15 parts of vinylbenzene, 21 parts of butyl methacrylate, 9 parts of butyl acrylates, 15 parts of vinylformic acid 2-hydroxyl ethyl esters, 3 parts of concentration are Permethyl 99A. solution (Trigonox FC50 (AKZO)) and 18 parts of hydrocarbon solvents (Solvesso100) of 50% tert-butyl peroxy acetate.After 6 hours reinforced, add 1 part of hydrocarbon solvent (Solvesso150) and make reaction mixture remain on reflux state and spend other 30 minutes.At last, add 4 parts of Solvesso150.Test result to this resin solution is as follows:
Solid content 60.9%
Viscosity L+1/4 (Gardner Holdt)
Acid number 3.6
Hydroxyl value 121
Number-average molecular weight 2100
Weight-average molecular weight 4900
11 ℃ of Tg (calculate, be accurate to ℃) with the Flory-Fox formula
Preparation 2
Method according to preparation 1, in reactor, add 20 parts of dimethylbenzene and mixture composed of the following components, these components are 24 parts of vinylbenzene, 12 parts of methacrylic acid 2-ethylhexyls, 12 parts of butyl methacrylate, 11.1 parts of methacrylic acid 2-hydroxyl ethyl esters, 0.9 part of vinylformic acid, 2 parts of peroxides 3,3, the 5-tri-methyl hexanoic acid tert-butyl ester (Trigonox 41S) and 3 parts of Solvesso100.In 4 hours, add these compositions, add 1 part of Solvesso100 subsequently again.Make mixture keep in 1 hour, adding other 0.1 part of Trigonox41S and 3.9 parts of Solvesso100 after 20 minutes, add 1 part of Solvesso100 subsequently again.Mixture was kept other 20 minutes, add 9 parts of Solvesso100 at last.Test result to this resin solution is as follows:
Solid content 61%
Viscosity Z5
Acid number 12.3
Hydroxyl value 89
Number-average molecular weight 5500
Weight-average molecular weight 13000
48 ℃ of Tg (as preparing in 1, calculating)
Preparation 3
Replace methacrylic acid 2-ethylhexyl to repeat to prepare 2 with 2-EHA.Test result to resin solution is as follows:
Solid content 60.8%
Viscosity Z21/4
Acid number 13
Hydroxyl value 89
Number-average molecular weight 5800
Weight-average molecular weight 13000
19 ℃ of Tg (calculated value)
Preparation 4
Repeat to prepare 1 by 10 parts of Solvesso100 of adding and 22.38 parts of tertiary monocarboxylic acid list epoxy ester Cardura E10 (Shell) in reactor.In 6 hours, in the mixture that refluxes, add 21 parts of vinylbenzene, 9 parts of methacrylic acid 2-hydroxyl ethyl esters, 7.62 parts of vinylformic acid, 1.5 parts of di-t-butyl peroxide (Trigonox B; AKZO) and 7.5 parts of Solvesso100.Add 1 part of Solvesso again and make reactor content remain on reflux state 1 hour.At last, add 20 parts of butylacetates.The test result of resin solution is:
Solid content 61.9%
Viscosity M
Acid number 16.9
Hydroxyl value 148
Number-average molecular weight 2300
Weight-average molecular weight 5200
20 ℃ of Tg (calculated value)
Preparation 5
Repeat to prepare 1, wherein, in reactor, add 9 parts of Solvesso100 and 7 parts of propyl carbinols.In 5 hours, add 19.8 parts of vinylbenzene, 22.44 parts of 2-EHAs; 17.16 part methacrylic acid 2-hydroxyl ethyl ester, 6.6 parts of γ-methacryloyl propyl-triethoxysilicanes (DynasylanMEMO-E HULS), 8.5 parts of Solvesso100 and 4.5 part 2; 2 '-azo two (methylbutyronitrile) mixture (VAZO67), add 1 part of Solvesso100 subsequently again.Make reactor content remain on reflux state after 10 minutes, add the 0.5 part of VAZO67 that is dissolved among 1.5 parts of Solvesso100 in 20 minutes, add 1 part of Solvesso100 subsequently again.This mixture was kept 30 minutes at reflux state again, add 1 part of other Solvesso100 again.The test result of resin solution is:
Solid content 70.2%
Viscosity Y
Hydroxyl value 112
Number-average molecular weight 2100
Weight-average molecular weight 5500
Tg (calculated value)-4 ℃
The preparation of polyester polyol
Preparation 6
In flask, add 20.96 parts of hydrogenation dimer (fatty acid) yls (Pripol1009 Unichema), 19.88 part 2,2-ethyl-butyl-1, ammediol, 11.1 parts of TriMethylolPropane(TMP)s and 21.97 part 1, the 4-cyclohexane dicarboxylic acid (1,4CHDA).In 4 hours, when removing water of condensation, make temperature rise to 220 ℃ from 160 ℃.Make the mixture insulation at 220 ℃, till acid number reaches 9-11.After this, with 32 parts of Solvesso100 diluting reactor contents.Test result to resin solution is:
Solid content 68.8%
Viscosity V
Acid number 9.8
Hydroxyl value 150
Number-average molecular weight 1800
</entry></row></tbody></tgroup></table></tables>
Contrast D, E and F
D E F
1,6-hexylene glycol 30.31 12.74 15.71
2,2-ethyl-butyl, 1, ammediol 12.95 15.97
TriMethylolPropane(TMP) 6.05 12.66 6.68
Hexanodioic acid 19 17.82 17.78
1,4-cyclohexane dicarboxylic acid 22.39 21 20.97
Solvesso?100 32 32 32
Test result
Solid content 68.6 68.8 68.6
Viscosity N U+1/3 P
Acid number 9.9 10 10.5
Number-average molecular weight 2,200 2,200 2100
Weight-average molecular weight 6,000 8,300 6100
Preparation 12
Repeat to prepare 6 with 15.5 parts of TriMethylolPropane(TMP)s and 52.78 parts of Pripol1010 (Unichema).Before adding 35 parts of Solvesso100, batching is remained to be less than till 1 the acid number.Test result is:
Solid content 65.9%
Viscosity Z3
Acid number 0.6
Hydroxyl value 145
Number-average molecular weight 4600
Weight-average molecular weight 51000
Preparation 13
In the polyester binding agent solutions of 100 parts of preparations in 12, add 0.1 part of dibutyl tin dilaurate and with this mixture heating up to 60 ℃.Then, add 3.8 parts of 3-isocyanato-propyl trimethoxy silicanes, add 1 part of Solvesso100 subsequently.Make this mixture insulation till 60 ℃ the NCO bands of a spectrum disappear in infrared spectra.Add 1 part of propyl carbinol then.The polyester polyol and component (i) and any mixing (iii) of preparation 12 and 13 can be prepared coating composition of the present invention.The test result of this polyester polyol is as follows:
Solid content 65.8%
Viscosity Z4
Acid number 0.9
Hydroxyl value 130
Number-average molecular weight 4300
Weight-average molecular weight 75300
Embodiment 1-6
The typical clear lacquer prescription that preparation has following component: organic rheology control agent of propylene acid polyol 11.48 usefulness 5% of preparation 1
1Propylene acid polyol 24.522 polyester polyols of the preparation 1 of modification
218.051 DBSA 1.238Solvesso 100 1.559 BCs 3.669 dimethylbenzene 6.430 of melamine formaldehyde (MF) Luwipal 013 (BASF) resin 17.155 melamine formaldehyde (MF) LR8735 (BASF) resin 6.743Tinuvin 1130 (Ciba) 0.788Tinuvin 292 (Ciba) 0.394Irganox 1010 solution (Ciba) 0.944Reomet TTA solution (Ciba) 0.147Silicone 017 solution (Bayer) 0.458Solvesso 150 6.422 usefulness 2-aminomethyl propanol end-blockings
1Based on the rheology control agent of two ureas, two ureas wherein prepare with benzylamine and hexamethylene diisocyanate.
2Embodiment 1-6 is those embodiment that wherein use the polyester polyol of preparation 6-11 respectively.
The wet wetland that bumps of this clear lacquer is coated on the blue base coat.The thickness of preparation of specimen and coating is as follows:
Ground Act-Tru cold-rolled steel sheet B952 P60 DIW:MATT
The priming paint surfacer toasted 30 seconds down at 145 ℃, and DFT is the 30-35 micron
Priming coat DFT is ± 15 microns
The clear lacquer toasted undercoat+clear lacquer 30 minutes down at 140-145 ℃,
DFT is ± 40-45 micron DFT=build.
Estimate field performance, for example gloss, tack, humidity, anti-dimethylbenzene, acidproof (H after the baking
2SO
4) property, the slabbing of filming, hardness (Persoz, Fisher) and snappiness.These clear lacquer prescriptions have all passed through the technical requirements of general initial device manufacturers.
With do not contain the contrast of component coating (ii) on outward appearance and scratch resistance performance
Test result explanation in the table 2 uses dimer (fatty acid) yl to have the advantage that improves scratch resistance performance and appearance property in polyester polyol.Visually estimate outward appearance in the External Observation examination, this test is equivalent to the shock resistance (strike-in resistance) of the clear lacquer on undercoat.
By 60 circulations that synthetic materials (polyethylene) brush that makes model stand to rotate combines with the univocal solution that contains abrasive material, carry out the test of scratch resistance performance.This scratch resistance performance demonstrates the per-cent that scratches the back loss of gloss.It is excellent, fine, good-fine, good, medium good, medium, poor pressing the appearance ratings of yielding and pledge allegiance to preface.Importantly must obtain the two balance of outward appearance and resistance to marring.Therefore, in table 2, can allow loss of gloss when outward appearance is in " good-fine " is 22% resistance to marring.But, when outward appearance only is " medium ", even loss of gloss is 5% also to be underproof.
Table 2 embodiment/Comparative Examples outward appearance resistance to marring (%) embodiment 1 excellence-15 embodiment 2 fine-3 embodiment 3 good-fine-22 embodiment 4 excellences-15 embodiment 5 fine-20 embodiment 6 excellences-10 Comparative Examples are medium-and good-30 (the propylene acid polyol of preparation 1 does not have polyester polyol) contrast A is medium-and medium-5 contrast C of good-9 contrast B are poor, and--D is poor in contrast, and--it is poor to contrast E--it is poor to contrast F--
Claims (8)
1. the coating composition of the crosslinkable tackiness agent in organic solvent, this tackiness agent of binding agent based gross weight contains following component:
I) the propylene acid polyol of about 15-70%, the weight-average molecular weight of this many alcohol is about 2500-40000, and hydroxyl value is about 50-180mgKOH/g, and second-order transition temperature is-30 to 70 ℃;
The ii) polyester polyol that not necessarily replaces of about 5-60%, the weight-average molecular weight of this many alcohol is about 2000-80000, hydroxyl value is about 50-220mgKOH/g, not necessarily substituting group is selected from least a of trialkoxysilyl and urethanum, this polyester polyol contain at least about 10% weight following a), b) and c) at least a hydrogenation reaction product: a) dimer (fatty acid) yl and polyvalent alcohol, b) alcohol of polyprotonic acid and dimerization, and c) alcohol of dimer (fatty acid) yl and dimerization, this reaction product contain at least two groups that are selected from acid and alcohol functional group; And
The iii) linking agent of about 10-60%, this linking agent is selected from least a of oxyalkylated melamine formaldehyde (MF) adducts and polyisocyanates.
2. the composition of claim 1, wherein the molecular weight of propylene acid polyol is 3000-10000, and hydroxyl value is 80-150, and second-order transition temperature is-10 to 50 ℃.
3. the composition of claim 1, propylene acid polyol wherein contains at least one trialkoxysilyl group.
4. the composition of claim 1, wherein the molecular weight of polyester polyol is 2500-15000, hydroxyl value is 100-170, be selected from a), b) and hydrogenation reaction product c) account for about 30-60% of polyester polyol weight.
The composition of 5 claims 1, polyester polyol wherein contain at least a substituting group that is selected from trimethoxysilyl and urethane groups.
6. the composition of claim 1, this composition is the bicomponent system form, and wherein a kind of component contains the how pure and mild polyester polyol of vinylformic acid, and another kind of component contains not end capped polyisocyanates.
7. the composition of claim 1, said composition is a finish paint.
8. the composition of claim 7, said composition is the clear lacquer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96195179A CN1189850A (en) | 1995-05-02 | 1996-04-29 | Scratch-resistant coating composition |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/433,284 | 1995-05-02 | ||
| CN96195179A CN1189850A (en) | 1995-05-02 | 1996-04-29 | Scratch-resistant coating composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1189850A true CN1189850A (en) | 1998-08-05 |
Family
ID=5129037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96195179A Pending CN1189850A (en) | 1995-05-02 | 1996-04-29 | Scratch-resistant coating composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1189850A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469248B (en) * | 2007-12-30 | 2012-01-25 | 比亚迪股份有限公司 | Bicomponent polyurethane coating and preparation thereof |
| CN104342007A (en) * | 2013-08-02 | 2015-02-11 | 鹤山市君子兰涂料有限公司 | High-hardness quick-polishing PU (Polyurethane) light wood paint and preparation method thereof |
| CN106029797A (en) * | 2014-02-20 | 2016-10-12 | 巴斯夫涂料有限公司 | Coating material compositions and coatings produced thereof and their use |
| CN111542574A (en) * | 2017-12-28 | 2020-08-14 | 关西涂料株式会社 | Coating composition |
| CN114981373A (en) * | 2020-01-16 | 2022-08-30 | 巴斯夫涂料有限公司 | Coating composition comprising poly (ethylene-acrylate) copolymer and method of coating a substrate |
-
1996
- 1996-04-29 CN CN96195179A patent/CN1189850A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469248B (en) * | 2007-12-30 | 2012-01-25 | 比亚迪股份有限公司 | Bicomponent polyurethane coating and preparation thereof |
| CN104342007A (en) * | 2013-08-02 | 2015-02-11 | 鹤山市君子兰涂料有限公司 | High-hardness quick-polishing PU (Polyurethane) light wood paint and preparation method thereof |
| CN106029797A (en) * | 2014-02-20 | 2016-10-12 | 巴斯夫涂料有限公司 | Coating material compositions and coatings produced thereof and their use |
| CN106029797B (en) * | 2014-02-20 | 2019-11-26 | 巴斯夫涂料有限公司 | Coating composition and coating prepared therefrom and application thereof |
| CN111542574A (en) * | 2017-12-28 | 2020-08-14 | 关西涂料株式会社 | Coating composition |
| CN114981373A (en) * | 2020-01-16 | 2022-08-30 | 巴斯夫涂料有限公司 | Coating composition comprising poly (ethylene-acrylate) copolymer and method of coating a substrate |
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