Embodiment
Except as otherwise noted, " rudimentary " in term used herein " lower fatty acid ", " lower alkyl esters ", " lower alkyl ketone " and " lower alkyl alcohol " means and contains 1-10 carbon atom, preferably contains 1-6 carbon atom, more preferably contains 1-4 carbon atom.
Term used herein " alkyl " comprises the straight or branched alkyl.
Term used herein " substituting group " expression halogen, hydroxyl, C1-4Alkyl, halo C1-4Alkyl etc.The instantiation of alkyl comprises methyl, ethyl, propyl group, isopropyl, butyl, isobutyl.The instantiation of halogen comprises fluorine, chlorine, bromine.The preferred substituted number is 1-3, more preferably 1-2.
The application's method comprises and at first prepares coating that this coating comprises resin, methacrylate polymers and the fat-soluble cellulose or the cellulose derivative of molecular weight or high molecular during described resin comprises.
The use amount of resin can account for about 10% to about 40% of coating general assembly (TW).
Can be used for the middle molecular weight of the application's method or the glass temperature of high molecular methacrylate polymers is about 60 ℃ to about 100 ℃, preferred about 80 ℃ to about 100 ℃, and more preferably from about 90 ℃ to about 100 ℃, even more preferably from about 95 ℃ to about 100 ℃, molecular weight is about 70,000 to about 150,000, preferred about 80,000 to about 130,000, more preferably from about 90,000 to about 120,000, even more preferably from about 90,000 to about 110,000.
At the resin that is used for the application's method, the weight ratio of methacrylate polymers and cellulose or cellulose derivative is preferably about 1: 0.2-2.In one embodiment, the weight ratio of methacrylate polymers and cellulose or cellulose derivative is 1: 0.33.In another embodiment, the weight ratio of methacrylate polymers and cellulose or cellulose derivative is 1: 0.5.In another embodiment, the weight ratio of methacrylate polymers and cellulose or cellulose derivative is 1: 2.
The middle molecular weight or the high molecular methacrylate polymers that can be used for the application's method can be the multipolymer of two or more methacrylic acid lower alkyl esters.In one embodiment, use methyl methacrylate/butyl methacrylate copolymer.
The middle molecular weight or the high molecular methacrylate polymers that can be used for the application's method also can be the homopolymer of methacrylic acid lower alkyl esters, as methylmethacrylate polymer, Jia Jibingxisuanyizhi polymkeric substance, butyl methacrylate polymkeric substance, isobutyl methacrylate polymkeric substance and metering system tert-butyl acrylate polymkeric substance.
The cellulose or the cellulose derivative that can be used for the application's method can be cellulose acetate propionate or cellulose nitrate.The example of cellulose acetate propionate includes but not limited to CAP504-0.2, CAP482-0.5, CAP482-20, the 371A2R30010 that U.S. Yi Shi Man produces.When using cellulose nitrate, its nitrogen content is about 10.8% to about 12.6%, preferred about 11.6%.
The coating that is used for the application's method also comprises solvent, one or more in the benzene that described solvent is selected from benzene, replaced by one or more substituting groups, lower fatty acid lower alkyl esters, lower alkyl ketone, the lower alkyl alcohol.
The preferred embodiment of described solvent includes but not limited to toluene, chlorobenzene, dimethylbenzene, butyl acetate, acetone, butanone, methyl isobutyl ketone, butanols, isopropyl alcohol, diacetone alcohol.
The coating that can be used for the application's method also can comprise other adjuvant commonly used in the coating, for example adhesion promoter certainly.The component that those of ordinary skill in the art uses according to reality can easily be selected the kind and the consumption of these adjuvants.
In certain embodiments, the coating that is used for the application's method comprises the resin that accounts for its component general assembly (TW) about 10% to about 40%, described resin comprises multipolymer and the fat-soluble cellulose or the cellulose derivative of two or more alkyl methacrylates, the glass temperature of the multipolymer of wherein said two or more alkyl methacrylates is about 60 ℃ to about 100 ℃, molecular weight is about 70,000 to about 150,000, the multipolymer of described two or more alkyl methacrylates and described cellulose or the cellulose derivative relative weight ratio in described coating is about 1: 0.2-2; And solvent.
In certain embodiments, the coating that is used for the application's method comprises the resin that accounts for its component general assembly (TW) about 10% to about 40%, described resin comprises multipolymer and the fat-soluble cellulose or the cellulose derivative of two or more alkyl methacrylates, the glass temperature of the multipolymer of wherein said two or more alkyl methacrylates is about 60 ℃ to about 100 ℃, molecular weight is about 70,000 to about 150,000, the multipolymer of described two or more alkyl methacrylates and described cellulose or the cellulose derivative relative weight ratio in described coating is about 1: 0.2-2; About 1% to about 5% adhesion promoter; And solvent.
In certain embodiments, the coating that is used for the application's method comprises the resin that accounts for its component general assembly (TW) about 10% to about 40%, described resin comprises homopolymer and the fat-soluble cellulose or the cellulose derivative of alkyl methacrylate, the glass temperature of the homopolymer of wherein said alkyl methacrylate is about 60 ℃ to about 100 ℃, molecular weight is about 70,000 to about 150,000, the homopolymer of described alkyl methacrylate and described cellulose or the cellulose derivative relative weight ratio in described coating is about 1: 0.2-2; And solvent.
In certain embodiments, the coating that is used for the application's method comprises the resin that accounts for its component general assembly (TW) about 10% to about 40%, described resin comprises homopolymer and the fat-soluble cellulose or the cellulose derivative of alkyl methacrylate, the glass temperature of the homopolymer of wherein said alkyl methacrylate is about 60 ℃ to about 100 ℃, molecular weight is about 70,000 to about 150,000, the homopolymer of described alkyl methacrylate and described cellulose or the cellulose derivative relative weight ratio in described coating is about 1: 0.2-2; About 1% to about 5% adhesion promoter; And solvent.
In certain embodiments, the coating that is used for the application's method comprises the resin that accounts for its component general assembly (TW) about 10% to about 40%, described resin comprises methacrylate polymers and cellulose acetate propionate, the glass temperature of wherein said methacrylate polymers is about 60 ℃ to about 100 ℃, molecular weight is about 70,000 to about 150,000, and described methacrylate polymers and the described cellulose acetate propionate relative weight ratio in described coating is about 1: 0.2-2; And solvent.
In certain embodiments, the coating that is used for the application's method comprises the resin that accounts for its component general assembly (TW) about 10% to about 40%, described resin comprises methacrylate polymers and cellulose acetate propionate, the glass temperature of wherein said methacrylate polymers is about 60 ℃ to about 100 ℃, molecular weight is about 70,000 to about 150,000, and described methacrylate polymers and the described cellulose acetate propionate relative weight ratio in described coating is about 1: 0.2-2; About 1% to about 5% adhesion promoter; And solvent.
In certain embodiments, the coating that is used for the application's method comprises the resin that accounts for its component general assembly (TW) about 10% to about 40%, described resin comprises methacrylate polymers and cellulose nitrate, the glass temperature of wherein said methacrylate polymers is about 60 ℃ to about 100 ℃, molecular weight is about 70,000 to about 150,000, and described methacrylate polymers and the described cellulose nitrate relative weight ratio in described coating is about 1: 0.2-2; And solvent.
In certain embodiments, the coating that is used for the application's method comprises the resin that accounts for its component general assembly (TW) about 10% to about 40%, described resin comprises methacrylate polymers and cellulose nitrate, the glass temperature of wherein said methacrylate polymers is about 60 ℃ to about 100 ℃, molecular weight is about 70,000 to about 150,000, and described methacrylate polymers and the described cellulose nitrate relative weight ratio in described coating is about 1: 0.2-2; About 1% to about 5% adhesion promoter; And solvent.
The application's method also comprises uses the method that well known to a person skilled in the art that coating as herein described is applied on the holographic optical elements (HOE) such as securities, I.D., passport, tax reciept, and coating method comprises for example roller coat, brushing or printing.Compare with the holographic optical elements (HOE) of uncoated the application's coating, the diffracting effect of the holographic optical elements (HOE) of coating the application coating significantly strengthens.
Embodiment
The application further specifies with following embodiment.
Embodiment 1
(1) prepare coating by following component and method:
Methyl methacrylate/butyl methacrylate copolymer (101) 20
Cellulose acetate propionate (CAP-482-0.5) 10
Butanone 30
Butyl acetate 25
Toluene 15
(CAP-482-0.5 Yi Shiman) adds in the mixed solvent of being made up of the toluene of the butyl acetate of the butanone of 30 weight portions, 25 weight portions, 15 weight portions with the cellulose acetate propionate of 10 weight portions.Stir the mixture, the methyl methacrylate/butyl methacrylate copolymer of adding 20 weight portions after dissolving extremely fully (101, Shanghai Chemical Plant, molecular weight is 100,000, glass temperature is 98 ℃), stir, obtain the application's coating.
(2) by roll coating model the coating that obtains in (1) is applied on the PET film that is coated with zinc sulphide and comprises diffraction grating.
Embodiment 2
(1) prepare coating by following component and method:
Methyl methacrylate/butyl methacrylate copolymer (101) 30
Cellulose nitrate 10
Butanone 30
Butyl acetate 20
Diacetone alcohol 7
Chloridized polyolefin (CP343-1) 3
The cellulose nitrate (U.S. Hercules Inc. production) of 10 weight portions is added in the mixed solvent of being made up of the diacetone alcohol of the butyl acetate of the butanone of 30 weight portions, 20 weight portions, 7 weight portions.Stir the mixture, add the methyl methacrylate/butyl methacrylate copolymer (101, Shanghai Chemical Plant) of 30 weight portions to dissolving back fully, stirring and dissolving.(CP343-1 Yi Shiman), stirs, and obtains the application's coating to add the chloridized polyolefin of 3 weight portions at last.(2) by the brushing mode coating that obtains in (1) is applied on the PET film that is coated with silicon dioxide and comprises diffraction grating.
Embodiment 3
(1) prepare coating by following component and method:
Methyl methacrylate/butyl methacrylate copolymer (101) 5
Cellulose nitrate 10
Butanone 50
Butyl acetate 35
The cellulose nitrate of 10 weight portions (U.S. Hercules Inc. produces, nitrogen content 11.6%) is joined in the mixed solvent of being made up of the butyl acetate of the butanone of 50 weight portions, 35 weight portions.Stir,, be stirred to dissolving fully, obtain the application's coating to dissolving methyl methacrylate/butyl methacrylate copolymer (101, Shanghai Chemical Plant) that the back adds 5 weight portions fully.(2) by mode of printing the coating that obtains in (1) is applied on the BOPP film that is coated with copper and comprises diffraction grating.
Embodiment 4 optical effect contrast tests
The sample that scribbles coating that obtains among the embodiment of the present application 1-3 and the sample of uncoated these coatings are observed contrast.With 1,2,3,4 and 5 sharpness of representing in various degree, 1 expression is very fuzzy, and 5 expressions are very clear.Observations is as shown in table 1.
Table 1
| Sample | Embodiment 1 | Embodiment 2 | Embodiment 3 | The sample of uncoated coating |
| Sharpness | 5 | 5 | 4 | 2 |
The result shows that its optic metachromatic effect of sample of coating coating is fairly obvious, the formed clear picture of diffraction grating, and the brightness height is easy to observe.And the sample optic metachromatic DeGrain of uncoated above-mentioned coating, the formed image color obfuscation of diffraction grating is unfavorable for observing anti-counterfeiting mark.
Though the application specifies with foregoing description and specific embodiment, the application is not so limited.The application's protection domain is limited by the claim in the appended claims, anyly is equal to replacement to what technical characterictic in the claim carried out, all should belong to the application institute restricted portion.