CN1935917A - Bottom coating composition, and its preparing method and multilayer coat - Google Patents
Bottom coating composition, and its preparing method and multilayer coat Download PDFInfo
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Abstract
The invention relates to prime paint combination contains main body resin, diluted solvent, auxiliary agent or not, and photo-initiator which can be solidified in ultraviolet light. There is strong adhesive force between base coat formed by the prime paint combination and top coat formed by the ultraviolet light solidified paint combination.
Description
Technical field
The invention relates to a kind of coating composition and preparation method thereof and laminated coating, more specifically about a kind of primer composition and preparation method thereof and laminated coating.
Background technology
Present plastic fittings surface, as the handset shell surface, portable computer external, the coating of cosmetics containers shell etc. generally comprises undercoat and finishing coat.Undercoat is generally by forming with the primer composition of thermoplastic acrylic resin as matrix resin, and finishing coat is generally formed by the polyurethane acrylate paint composition of ultraviolet light polymerization.
The primer composition that is used for undercoat at present mostly by with the thermoplastic acrylic resin as matrix resin, pigment, pearlescence or aluminium-silver slurry that metalluster is provided be as toning agent, and various auxiliary agent joins diluting solvent and combines.The undercoat that this primer composition forms and the adhesion performance of ground can reach requirement, but the sticking power between undercoat and the finishing coat is often not enough.The general way that solves is to add adhesion promoter, though this method can improve the sticking power between undercoat and the finishing coat to a certain extent, because adhesion promoter has higher acid number, can make the color and luster deepening of undercoat when adding undercoat to.
Summary of the invention
The objective of the invention is to overcome the undercoat of existing primer composition formation and the not enough shortcoming of sticking power of finishing coat, a kind of primer composition and preparation method thereof is provided, and undercoat and the sticking power between the finishing coat that this primer composition forms are stronger.
The present inventor is through research, the major cause of the poor adhesive force between the undercoat of finding existing laminated coating and the finishing coat is that the membrane formation mechanism of undercoat and finishing coat is different, and can be behind solidified resin and light trigger under the UV-light by in existing primer composition, sneaking into, the undercoat that forms and the sticking power of finishing coat improve greatly, have finished the present invention based on this discovery.
Primer composition provided by the invention contains matrix resin and diluting solvent, contains or do not contain auxiliary agent, and wherein, this primer composition also contains can be at solidified resin and light trigger under the UV-light.
The preparation method of primer composition provided by the invention comprises matrix resin and diluting solvent is mixed that with the dope filtration that obtains, wherein, this method comprises that also adding can and mix at solidified resin and initiator under the UV-light.
Laminated coating provided by the invention comprises at least one undercoat and finishing coat, undercoat is formed by primer composition, finishing coat is formed by ultraviolet cured paint composition, described primer composition contains matrix resin and diluting solvent, contain or do not contain auxiliary agent, wherein, also contain can be at solidified resin and light trigger under the UV-light for this primer composition.
The undercoat of laminated coating provided by the invention and the sticking power between the finishing coat have obtained improving greatly.
Embodiment
Primer composition provided by the invention contains matrix resin and diluting solvent, contains or do not contain auxiliary agent, and wherein, this primer composition also contains can be at solidified resin and light trigger under the UV-light.
According to primer composition provided by the invention, described can solidified resin under the UV-light can be known any kind can be at solidified resin under the UV-light, those that for example are usually used in the finishing coat composition can be at solidified resin under the UV-light.Preferably, described can be in the unsaturated polyurethanes acrylic ester prepolymer (being also referred to as " light-cured polyurethane acrylate ") that is selected from the aliphatics non-yellow stain type that contains 2-6 functional group, the polyester acrylic ester prepolymer (being also referred to as " photocuring polyester acrylate ") that contains 2-6 functional group or the epoxy acrylic ester prepolymer (being also referred to as " light-cured epoxy acrylate ") one or more at solidified resin under the UV-light.Functional group described herein is meant carbon-carbon double bond.Described can being commercially available at solidified resin under the UV-light, the example of for example described light-cured polyurethane acrylate comprise the urethane acrylate series product that sartomer company produces, as CN929, and CN934, CN962, CN965, CN980, CN9788; The series product of Congnis company, as 6008,6010,6019,6623,6217,6210,6892; The series product of Eternal company, as 6148J-75,6161-100 etc.The example of described photocuring polyester acrylate comprises the polyester acrylate series product that sartomer company produces, as CN2250, and CN2251, CN2252, CN2253, CN2255, CN2260, CN2261, CN2276, CN2230; The Photomer 5000 polyester acrylate series product of Congnis company; The polyester acrylate series product that Eternal company produces, as 6318,6320,6331.The example of described light-cured epoxy acrylate resin comprises the epoxy acrylate series product CN104 that sartomer company produces, CN111, CN115～CN121, CN124, CN136, CN2100, CN2101; The epoxy acrylate series product that Congnis company produces, as 6008,6010,6019,6623,6217,6210,6892; The galstaff product is as syncryl104 etc.Gross weight with primer composition is a benchmark, and described can be 0.25-20 weight % at the content of solidified resin under the UV-light, is preferably 0.5-15 weight %.
Described light trigger can be the light trigger of known any kind, for example can be for being selected from IHT-PI185, IHT-PI907, Irgacure651, Irgacure184, Irgacure369, Irgacure754, Irgacure2022, darocur1173, one or more among the darocurMBF.Wherein IHT-PI series is Chinese domestic goods, and Irgacure, darocur series are Switzerland vapour Bagong department products.With the primer composition gross weight is benchmark, and the content of described light trigger is 0.1-5 weight %, is preferably 0.2-3 weight %.
The kind of described matrix resin and consumption have been conventionally known to one of skill in the art, and matrix resin can use any known resin that is used for priming paint, as the thermoplastic acrylic resin.Described thermoplastic acrylic resin can be commercially available, for example the A-11 of U.S. Rhom and Hass, A-12, B60, B66, A-21; The BR-113 of MIT, BR-116, MB-2952, MB2660 etc.With the primer composition gross weight is benchmark, and the content of described matrix resin is preferably 5-90 weight %, more preferably 15-80 weight %.
According to primer composition provided by the present invention, wherein said thinner is an organic solvent.With the primer composition gross weight is benchmark, and the content of thinner is preferably 2-80 weight %, more preferably 10-65 weight %.Described organic solvent is conventionally known to one of skill in the art, is selected from toluene, ethyl acetate, butylacetate, isobutyl acetate, propyl acetate, ethanol, propyl carbinol, pimelinketone, dimethylbenzene, hexone, acetone, methylethylketone, butyl glycol ether, the propylene glycol butyl ether one or more.
Described auxiliary agent refers to one or more in flow agent commonly used in the primer composition, defoamer, the dispersion agent.The kind of these auxiliary agents and consumption are conventionally known to one of skill in the art.With the primer composition gross weight is benchmark, and the content of auxiliary agent is preferably 0-10 weight %, more preferably 0-6 weight %.
The kind of described flow agent and consumption are conventionally known to one of skill in the art, and for example described flow agent can be selected from EFKA3883, EFKA3886, EFKA3600, BYK366, BYK333, among BYK307, the DEGO410 one or more.Wherein EFKA series is Dutch Ai Fuka company product, and BYK series is BYK company product, and DEGO series is German Di Gao company product, more than its trade mark be conventionally known to one of skill in the art.With the primer composition gross weight is benchmark, and the content of described flow agent is preferably 0-2 weight %, more preferably 0-1.5 weight %.
The kind of described defoamer and consumption are conventionally known to one of skill in the art, and for example, described defoamer can be selected from EFKA2022, EFKA2527, EFKA2040, BYK352, BYK354, among the BYK357 one or more.With the primer composition gross weight is benchmark, and the content of described defoamer is preferably 0-2 weight %, more preferably 0-1.5 weight %.
The kind of described dispersion agent and consumption are conventionally known to one of skill in the art, and for example, described dispersion agent can be selected from Kerper-602, Kerper-605, Kerper630, CFC-500HP, CFC-510, CFC-637, one or more among the CFC-604S.Wherein Kerper series is U.S. Kerper company product, and CFC series is French CFC company product.With the primer composition gross weight is benchmark, and the content of described dispersion agent is preferably 0-5 weight %, more preferably 0-3 weight %.
According to primer composition provided by the present invention, wherein, can also contain toning agent in the described primer composition.The kind of described toning agent and consumption have been conventionally known to one of skill in the art, and for example toning agent is to be selected from silver-colored slurry, mill base, pearlescence, pearl powder, fluorescent material, dyestuff, the organic or inorganic pigment one or more.Described toning agent can be commercially available, and for example silver-colored slurry can use Japanese Japan product 5660NS.With the primer composition gross weight is benchmark, and the content of toning agent is preferably 0-50 weight %, more preferably 10-30 weight %.
According to primer composition provided by the present invention, wherein, can also contain conditioning agent in the described primer composition.The kind of described conditioning agent and consumption are conventionally known to one of skill in the art, and for example conditioning agent can be selected from CAB (cellulose acetate butyrate) or nitro-cotton.Conditioning agent can be regulated the arrangement of toning agent and the surface properties of filming that is formed by primer composition.With the primer composition gross weight is benchmark, and the content of described conditioning agent is preferably 0-15 weight %, more preferably 1-10 weight %.
The preparation method of primer composition provided by the invention comprises matrix resin and diluting solvent is mixed that with the dope filtration that obtains, wherein, this method comprises that also adding can and mix at solidified resin and initiator under the UV-light.
According to the preparation method of primer composition provided by the invention, described matrix resin, thinner, light trigger and can carry out simultaneously in the mixing of solidified resin under the UV-light also can proceed step by step.Under the preferable case,, light trigger is fully dissolved, obtain containing the solution of light trigger light trigger and part mixing diluents; Matrix resin and part mixing diluents is even, obtain containing the slurries of matrix resin; Can be even at solidified resin under the UV-light and part mixing diluents, obtaining containing can be at the slurries of solidified resin under the UV-light; To contain again light trigger solution, contain matrix resin slurries, contain and can mix at the slurries of solidified resin under the UV-light, add remaining diluent at last and mix.
In order to make described matrix resin homodisperse, during with matrix resin and part mixing diluents, can improve the blended temperature, the blended temperature is conventional mixing temperature, this temperature is generally 30-60 ℃.
If when also containing auxiliary agents such as flow agent, defoamer, dispersion agent and conditioning agent in the described primer composition, method provided by the invention also is included in and adds before the remaining diluent, obtain containing light trigger, matrix resin, can be in the slurries of solidified resin and described organic solvent under the UV-light, add described flow agent, defoamer, dispersion agent, toning agent and conditioning agent, and the step that mixes.Described flow agent, defoamer, dispersion agent, toning agent and conditioning agent can add simultaneously also and can add step by step, and the order of adding does not have remarkable influence to the performance of primer composition.
According to the preparation method's of a primer composition provided by the invention preferred implementation, this method comprises that (1) with light trigger and part mixing diluents, is stirred to abundant dissolving; (2) matrix resin and part mixing diluents is even; (3) can be even at solidified resin under the UV-light and part mixing diluents; (4) product that step (1), (2), (3) and (4) is obtained mixes; (5) continue to add or do not add auxiliary agent, conditioning agent and toning agent, and mix; (6) slurries that obtain are filtered in cooling; (7) continue to add remaining diluent, mix.
The undercoat of the plastic fittings that is suitable as the undercoat of various materials, particularly portable device by filming of forming of primer composition provided by the invention is as the undercoat of handset shell surface, portable computer external, cosmetics containers shell.In use, can be with primer composition provided by the invention and above-mentioned thinner with 1: the weight ratio of 0.5-1.5 be carried out mixed diluting, is sprayed on material surface then, 50-60 ℃ of oven dry 5-15 minute, can obtain good undercoat, coat-thickness is generally the 5-15 micron.
Laminated coating provided by the invention comprises at least one undercoat and finishing coat, undercoat is formed by above-mentioned primer composition, finishing coat is formed by ultraviolet cured paint composition, primer composition contains matrix resin and diluting solvent, contain or do not contain auxiliary agent, wherein, also contain can be at solidified resin and light trigger under the UV-light for this primer composition.
According to laminated coating provided by the invention, except undercoat was formed by primer composition provided by the invention, finishing coat can be formed by any ultraviolet cured paint composition known in the art.
For example, can adopt the ultraviolet cured paint composition of putting down in writing among CN1436825A, CN1091457C, CN1297972A, the CN1436825A.Generally speaking, described ultraviolet cured paint composition contains and can also contain auxiliary agents such as flow agent, defoamer, lubricant, anti-wear agent sometimes at solidified resin, thinner and light trigger under the UV-light.Total amount with coating is a benchmark, and described can be that the content of 5-95 weight %, thinner is that the content of 2-90 weight %, light trigger is that the content of 1-10 weight %, auxiliary agent is 0-15 weight % at the content of solidified resin under the UV-light.Wherein, described can be the unsaturated polyurethanes acrylic ester prepolymer that is selected from the aliphatics non-yellow stain type that contains 2-6 functional group at solidified resin under the UV-light, contain the polyester acrylic ester prepolymer of 2-6 functional group or in the epoxy acrylic ester prepolymer one or more.Under the preferable case, form in the ultraviolet cured paint composition of finishing coat can be in solidified resin under the UV-light and primer composition can be identical in the kind of solidified resin under the UV-light, in this case, the undercoat of formation and the sticking power between the finishing coat are better.Described thinner is the mixture of organic solvent or organic solvent and acrylate monomer.The various compositions of ultraviolet cured paint composition all have introduction in above-mentioned patent, do not give unnecessary details at this.
The finishing coat of the plastic fittings that is suitable as the finishing coat of various material surfaces, particularly portable device by filming of forming of ultraviolet cured paint composition is as the finishing coat of handset shell surface, portable computer external, makeup shell.Coating thickness is generally the 6-15 micron, 50 ℃ of oven dry 10-15 minute, and, can obtain good solidifying film layer through UV-irradiation 20-25 second.Form in the process of finishing coat in UV-irradiation, in the undercoat can have an effect in solidified resin and finishing coat under the UV-light at solidified resin under the UV-light, the two keys of the two are crosslinked, reach the purpose of raising sticking power.Therefore in laminated coating provided by the invention, the sticking power between undercoat and the finishing coat is stronger.
Below by embodiment the present invention is described in more detail.
Embodiment 1
This embodiment is used to illustrate primer composition provided by the invention and preparation method thereof.
Prepare primer composition as follows: mix 0.5 weight part light trigger Irgacure184 (1) with 2 parts by weight diluent, be stirred to abundant dissolving; (2) 25 weight part thermoplastic acrylic resins (U.S. Rhom and Hass product B-66) are mixed with 30 parts by weight diluent; (3) (the Sartomer product CN965) mixes with 5 parts by weight diluent with 5 weight part polyurethane acrylate resins; (4) 12 weight parts silver slurries (Japanese Japan product 5660NS) and 10 parts by weight diluent are mixed; (5) product that step (1), (2), (3) and (4) is obtained mixes; (6) in the product that step (5) obtains, add 0.5 weight part flow agent EFKA3777,8 weight part CAB resins (Yi Siman products C AB381-0.5), and mix; (7) slurries that obtain are filtered in cooling; (8) continue to add 2 parts by weight diluent, mix, obtain primer composition DT1.Wherein, thinner is the mixture of toluene, propyl carbinol and ethyl acetate, and three's weight ratio is 3: 1: 2.The composition of primer composition DT1 is as shown in table 1.
Comparative Examples 1
This Comparative Examples is used to illustrate reference primer composition and preparation method thereof.
Prepare the reference primer composition as follows: (1) mixes 30 weight part thermoplastic acrylic resins (U.S. Rhom and Hass product B-66) with 30 parts by weight diluent; (2) 12 weight parts silver slurries (Japanese Japan product 5660NS) and 10 parts by weight diluent are mixed; (3) product that step (1) and (2) are obtained mixes; (4) in the product that step (3) obtains, add 1 weight part flow agent EFKA3777,8 weight part CAB resins (Yi Siman products C AB381-0.5), and mix; (5) slurries that obtain are filtered in cooling; (6) continue to add 9 parts by weight diluent, mix, obtain primer composition CDT1.Wherein, thinner is the mixture of toluene, propyl carbinol and ethyl acetate, and three's weight ratio is 3: 1: 2.The composition of primer composition CDT1 is as shown in table 1.
Embodiment 2
This embodiment is used to illustrate primer composition provided by the invention and preparation method thereof.
Prepare primer composition as follows: mix 2.5 weight part light trigger Irgacure184 (1) with 2 parts by weight diluent, be stirred to abundant dissolving; (2) 45.5 weight part thermoplastic acrylic resins (U.S. Rhom and Hass product A-11) are mixed with 15 parts by weight diluent; (3) (the Sartomer product CN929) mixes with 5 parts by weight diluent with 10 weight part polyurethane acrylate resins; (4) 10 weight part black color pastes (Ke Di company, carbon black 9007-U) and 3 parts by weight diluent are mixed; (5) product that step (1), (2), (3) and (4) is obtained mixes; (6) adding 2 weight part nitro-cottons in the product that step (5) obtains (goes up tableland nitrated worker company limited, NC1/4s), and mixes; (7) slurries that obtain are filtered in cooling; (8) continue to add 5 parts by weight diluent, mix, obtain primer composition DT2.Wherein, thinner is the mixture of toluene, propyl carbinol and ethyl acetate, and three's weight ratio is 3: 1: 2.The composition of primer composition DT2 is as shown in table 1.
Embodiment 3
This embodiment is used to illustrate primer composition provided by the invention and preparation method thereof.
Prepare primer composition as follows: mix 0.3 weight part light trigger Irgacure184 (1) with 1 parts by weight diluent, be stirred to abundant dissolving; (2) 60 weight part thermoplastic acrylic resins (U.S. Rhom and Hass product B-66) are mixed with 10 parts by weight diluent; (3) (the Sartomer product CN965) mixes with 1 parts by weight diluent with 2 weight part polyurethane acrylate resins; (4) 14.7 weight part black color pastes (Ke Di company, carbon black 9007-U) and 3 parts by weight diluent are mixed; (5) product that step (1), (2), (3) and (4) is obtained mixes; (6) in the product that step (5) obtains, add 5 weight part CAB resins (Yi Siman products C AB381-0.5), and mix; (7) slurries that obtain are filtered in cooling; (8) continue to add 3 parts by weight diluent, mix, obtain primer composition DT2.Wherein, thinner is the mixture of toluene, propyl carbinol and ethyl acetate, and three's weight ratio is 3: 1: 2.The composition of primer composition DT2 is as shown in table 1.
Comparative Examples 2
This Comparative Examples is used to illustrate reference primer composition and preparation method thereof.
Prepare the reference primer composition as follows: (1) mixes 62 weight part thermoplastic acrylic resins (U.S. Rhom and Hass product B-66) with 10 parts by weight diluent; (2) 15 weight part black color pastes (the carbon black 9007-U of Ke Di company) and 3 parts by weight diluent are mixed; (3) product that step (1) and (2) are obtained mixes; (4) in the product that step (3) obtains, add 5 weight part CAB resins (Yi Siman products C AB381-0.5), and mix; (5) slurries that obtain are filtered in cooling; (6) continue to add 5 parts by weight diluent, mix, obtain primer composition CDT2.Wherein, thinner is the mixture of toluene, propyl carbinol and ethyl acetate, and three's weight ratio is 3: 1: 2.The composition of primer composition CDT2 is as shown in table 1.
Table 1
| The embodiment numbering | Embodiment 1 | Comparative Examples 1 | Embodiment 2 | Embodiment 3 | Comparative Examples 2 |
| The primer composition numbering | DT1 | CDT1 | DT2 | DT3 | CDT2 |
| Matrix resin (weight %) | 25 | 30 | 45.5 | 60 | 62 |
| Thinner (weight %) | 49 | 49 | 30 | 18 | 18 |
| Light trigger (weight %) | 0.5 | - | 2.5 | 0.3 | - |
| Can be at solidified resin (weight %) under the UV-light | 5 | - | 10 | 2 | - |
| Toning agent (weight %) | 12 | 12 | 10 | 14.7 | 15 |
| Flow agent (weight %) | 0.5 | 1 | - | - | - |
| Conditioning agent (weight %) | 8 | 8 | 2 | 5 | 5 |
| Gross weight (weight %) | 100 | 100 | 100 | 100 | 100 |
Embodiment 4-6
Embodiment 4-6 is used to illustrate laminated coating provided by the invention.
Respectively primer composition DT1-3 and the thinner that obtains among the embodiment 1-3 carried out mixed diluting with 1: 0.8 weight ratio, be sprayed on material surface then, dried 10 minutes for 55 ℃, obtain undercoat, the thickness of undercoat is 8 microns.Wherein, thinner is the mixture of toluene, propyl carbinol and ethyl acetate, and three's weight ratio is 3: 1: 2.
With 6 weight part light trigger Irgacure2022 and 10 parts by weight diluent (butylacetate: ethanol: butyl glycol ether=1: 1: 1) mix, be stirred to abundant dissolving; (2) with 30 weight part aliphatic urethane acrylate resin (Sartomer products, CN965), 30 weight part Epocryl (galstaff products, syncryl104) with 15 parts by weight diluent (butylacetate: ethanol: butyl glycol ether=1: 1: 1) mix, stir at 40 ℃; (3) product that step (1) and (2) are obtained mixes; (4) cooling is filtered the slurries that obtain, to remove residue; (5) continue to add 9 parts by weight diluent (butylacetate: ethanol: butyl glycol ether=1: 1: 1), stir, obtain ultraviolet cured paint composition.
Above-mentioned ultraviolet cured paint composition is sprayed on respectively on the above-mentioned undercoat that obtains, and 50 ℃ of oven dry 15 minutes, and through UV-irradiation 25 seconds obtain thickness and are 12 microns finishing coat.Obtain laminated coating MT1-3 like this, respectively.
Comparative Examples 3-4
Comparative Examples 3-4 is used to illustrate the reference laminated coating.
Obtain reference laminated coating CMT1-2 respectively according to method identical with embodiment 4-6 and step, different is that undercoat is formed by reference primer composition CDT1-2 respectively.
Performance test
Profit is measured laminated coating MT1-3 and the undercoat of reference laminated coating CMT1-2 and the sticking power between the finishing coat in the following method respectively, and measurement result is as shown in table 2.
Draw 100 1 millimeter * 1 millimeter square lattice with drawing the lattice device on the laminated coating surface, the model of producing with Minnesota Mining and Manufacturing Company is 600 smooth being bonded on the grid of scotch tape, do not stay a space, vertically uncover with utmost dispatch then, observe cut edge and have or not depainting.Is 5B as the depainting amount between 0-5%, is 4B between 5-10%, is 3B between 10-20%, is 2B between 20-30%, is B between 30-50%, is being 0B more than 50%.
Table 2
| The embodiment numbering | The primer composition numbering | The laminated coating numbering | Sticking power |
| Embodiment 4 | DT1 | MT1 | 5B |
| Comparative Examples 3 | CDT1 | CMT1 | 2B |
| Embodiment 5 | DT2 | MT2 | 5B |
| Embodiment 6 | DT3 | MT3 | 5B |
| Comparative Examples 4 | CDT2 | CMT2 | 0B |
From the result shown in the table 2 as can be seen, compare with existing laminated coating, the undercoat of laminated coating provided by the invention and the sticking power between the finishing coat have obtained improving greatly.
Claims (17)
1, a kind of primer composition, this primer composition contains matrix resin and diluting solvent, contains or does not contain auxiliary agent, it is characterized in that this primer composition also contains can be at solidified resin and light trigger under the UV-light.
2, primer composition according to claim 1, wherein, gross weight with described primer composition is a benchmark, the content of matrix resin is 5-90 weight %, the content of thinner is 2-80 weight %, can be 0.25-20 weight % at the content of solidified resin under the UV-light, the content of light trigger be 0.1-5 weight %, and the content of auxiliary agent is 0-10 weight %.
3, primer composition according to claim 2, wherein, gross weight with described primer composition is a benchmark, the content of matrix resin is 15-80 weight %, the content of thinner is 10-65 weight %, can be 0.5-15 weight % at the content of solidified resin under the UV-light, the content of light trigger be 0.2-3 weight %, and the content of auxiliary agent is 0-6 weight %.
4, primer composition according to claim 1, wherein, described can be the unsaturated polyurethanes acrylic ester prepolymer that is selected from the aliphatics non-yellow stain type that contains 2-6 functional group at solidified resin under the UV-light, contain the polyester acrylic ester prepolymer of 2-6 functional group or in the epoxy acrylic ester prepolymer one or more.
5, primer composition according to claim 1, wherein, described light trigger is to be selected among IHT-PI185, IHT-PI907, rgacure651, Irgacure184, Irgacure369, Irgacure754, Irgacure2022, darocur1173, the darocurMBF one or more.
6, primer composition according to claim 1, wherein, described matrix resin is the thermoplastic acrylic resin.
7, primer composition according to claim 1, wherein, described thinner is an organic solvent, and described organic solvent is selected from one or more in toluene, ethyl acetate, butylacetate, isobutyl acetate, propyl acetate, ethanol, propyl carbinol, pimelinketone, dimethylbenzene, hexone, acetone, methylethylketone, butyl glycol ether, the propylene glycol butyl ether.
8, primer composition according to claim 1, wherein, described auxiliary agent is to be selected from flow agent, defoamer, the dispersion agent one or more.
9, primer composition according to claim 1 wherein, also contains toning agent in the described primer composition, be benchmark with the primer composition gross weight, and the content of toning agent is 10-30 weight %.
10, primer composition according to claim 9, wherein, described toning agent is selected from one or more in silver-colored slurry, mill base, pearlescence, pearl powder, fluorescent material, dyestuff, the organic or inorganic pigment.
11, primer composition according to claim 1 wherein, also contains conditioning agent in the described primer composition, be benchmark with the primer composition gross weight, and the content of described conditioning agent is 1-10 weight %.
12, primer composition according to claim 11, wherein, described conditioning agent is cellulose acetate butyrate or nitro-cotton.
13, the preparation method of the described primer composition of claim 1, this method comprises matrix resin and diluting solvent is mixed, dope filtration with obtaining is characterized in that, this method comprises that also adding can and mix at solidified resin and light trigger under the UV-light.
14, method according to claim 13, wherein, described matrix resin, thinner, light trigger and can be in the step of solidified mixed with resin under the UV-light be with light trigger and part mixing diluents, light trigger is fully dissolved, obtain containing the solution of light trigger; Matrix resin and part mixing diluents is even, obtain containing the slurries of matrix resin; Can be even at solidified resin under the UV-light and part mixing diluents, obtaining containing can be at the slurries of solidified resin under the UV-light; To contain again light trigger solution, contain matrix resin slurries, contain and can mix at the slurries of solidified resin under the UV-light, add remaining diluent at last and mix.
15, method according to claim 14, wherein this method also is included in and adds before the remaining diluent, contain light trigger, matrix resin, thinner and can be in the slurries of solidified resin under the UV-light what obtain, add auxiliary agent, conditioning agent and toning agent, and the step that mixes.
16, method according to claim 13, wherein, this method comprises that (1) with light trigger and part mixing diluents, is stirred to abundant dissolving; (2) matrix resin and part mixing diluents is even; (3) can be even at solidified resin under the UV-light and part mixing diluents; (4) product that step (1), (2), (3) and (4) is obtained mixes; (5) continue to add or do not add auxiliary agent, conditioning agent and toning agent, and mix; (6) slurries that obtain are filtered in cooling; (7) continue to add remaining diluent, mix.
17, a kind of laminated coating, comprise at least one undercoat and finishing coat, undercoat is formed by primer composition, and finishing coat is formed by ultraviolet cured paint composition, it is characterized in that described primer composition is any described primer composition among the claim 1-12.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102382513A (en) * | 2011-09-21 | 2012-03-21 | 周湛文 | Gravure mirror ink |
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