CN1242865A - Dielectric, radiation curable coating compositions and metal conductors coated with such coating - Google Patents
Dielectric, radiation curable coating compositions and metal conductors coated with such coating Download PDFInfo
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- CN1242865A CN1242865A CN 97181141 CN97181141A CN1242865A CN 1242865 A CN1242865 A CN 1242865A CN 97181141 CN97181141 CN 97181141 CN 97181141 A CN97181141 A CN 97181141A CN 1242865 A CN1242865 A CN 1242865A
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Abstract
Provided is a metal conductor having a cured coating of about 10 to about 500 micrometer thickness which coating has a dielectric dissipation factor (60Hz, 24 DEG C) of lower than about 0.05 and is a radiation-cured coating formulated from components comprising: a) an acrylate functional urethane oligomer having a hydrocarbon backbone, b) one or more mono- or polyfunctional diluents, and optionally, and c) a photoinitiator.
Description
Background of invention
In order to make conductor insulation, metallic conductor generally coats with the coating of insulation.Described coating in various environment and/or under extreme conditions for example on the transformer coil of distribution transformer, all needs good insulation property.According to US-A-4481258, prior art adopts paper as insulating material.Though US-A-4481258 proposes to use coating as insulating material, when making transformer coil, still uses paper.The coating that is proposed in US-A-4481258 is that some can be by the material of ultraviolet curing, comprising acrylate-ester adduct, and acrylate urea alkane adduct and acrylate-functional diluent.These coating need be used ultraviolet curing, and need are at 130 ℃ of back down 4-17h that solidify of temperature.Particularly owing to need the back to solidify, the method for making transformer coil with this class coating does not have attraction.
The insulation coating of high-power transformer coil generally should have following several performance.
When metal bending being become needed shape with the coating clad metal and after being coated with, coating should be flexible, so that when conductor was wound in coil, it can tolerate the bending of its coating conductor.
As described in US-A-4481258, coating should be able to tolerate 28 days immersion in oil under 150 ℃.
Under the high temperature that coating is run into when transformer load, should still keep adhering to.
The dielectric constant of coating under 60Hz (24 ℃) should be less than 5%,
Under 60Hz, coating in being exposed to deep fat before, the dielectric dissipation factor under 24 ℃ should be less than 0.05, in being exposed to deep fat after, the dielectric dissipation factor under 150 ℃ should be less than 0.2.
The purpose of this invention is to provide the insulation clad compositions of radiation-curable and the metallic conductor that coats with ultraviolet solidifiable clad compositions, these compositions have as the required performance of insulating material.
Summary of the invention
The present invention relates to have the metallic conductor of the thick curing coating of about 10-500 μ m, the dielectric dissipation factor of its coating (60Hz, 24 ℃) is less than about 0.05, and this coating is a kind of coating of the hardening with radiation by multiple one-tenth assignment system, and these compositions comprise:
A) a kind of acrylate-functional urea alkane oligomer with hydrocarbon skeleton
B) one or more simple functions or polyfunctional diluent and optional,
C) one or more compounds that generate by photosensitive group.
In addition, the present invention relates to the clad compositions of radiation-curable, comprising:
A) a kind of acrylate-functional urea alkane oligomer with hydrocarbon skeleton
B) one or more simple functions or polyfunctional diluent and optional and optional
C) one or more its coating of compound that generated by photosensitive group are behind hardening with radiation, and at 60Hz, the dielectric dissipation factor under 24 ℃ is less than about 0.05, at 60Hz, 150 ℃ of following loss factors are less than about 0.2 with under 25 ℃, and the percentage elongation of the coating that 25 μ m are thin is at least about 50%.
Insulation coating on metallic conductor all has good insulation property under low temperature and high temperature.The insulation coating obviously has low-k, for example less than about 5 (60Hz, 24 ℃), and has good insulation breakdown value.In addition, can be crooked in order to make metallic conductor, coating is flexible.
The preferable alloy conductor is iron, copper, aluminium or silver conductor.Especially preferred aluminium, copper or silver.Metallic conductor can be lead or strip.The metallic conductor that is coated can be used to make capacitor, transformer and motor etc.Because the premium properties of coating, the metallic conductor that is coated can be used in the deep fat environment.Thereby the present invention is suitable for coating aluminium or copper or the lead of making the distribution transformer coils use most.The thickness of these sliver transvers sections is generally about 0.1-1.7mm, and width is 7-60cm.Earlier these are coiled into coil, assemble with iron core then and make transformer.
In general, plain conductor or bonding jumper are coated with straight continuous form, and the plain conductor of coating or bonding jumper can be stored or directly use by spooling.Therefore coating should solidify from the teeth outwards after curing securely, so that under the situation that metallic conductor is stored, fracture can not appear in coating yet.And the coating of invention has flexible, so spooling is stored and/or when making the product of transformer and so on, meander coil or lead can not cause the damage of coating.Therefore at the thick coating of measuring down of 25 μ m, preferably its elongation is at least about 50%.Particularly when being lower than 20 ℃, coating has 1Tg (being according to analyze medium loss angle δ tangent cutve peak value measurement at DSM under 1Hz) at least.
Because the metallic conductor with coating can be used in the deep fat medium, thus coating at 60Hz, the loss factor under 150 ℃ is most preferably less than about 0.2.In addition, coating is at 60Hz, and the loss factor under 24 ℃ before and after the deep fat ageing test is preferably less than about 0.05.
Even when coating was extremely thin film, coating also had insulation property.Coating layer ranges in thickness is preferably about 10-500 μ m, especially about 10-100 μ m.
First kind of composition of the coating of this radiation-curable is the acrylate-functional urea alkane oligomer (a) with hydrocarbon skeleton.Use skeleton one vocabulary to show oligomer or the polymer that connects the acrylate urethane groups.The consumption of preferred this acrylate-functional urea alkane oligomer, total relatively clad compositions is about 20-80% (weight).The more preferably about 30-65% of its consumption (weight).
The oligomer (a) that preferred the present invention uses for (i) have can with the hydrocarbon of the group of isocyanate reaction; (ii) polyisocyanates; The (iii) product of hydroxyl-functional end-blocking monomer.
Having to be to be made of the straight or branched hydrocarbon that contains a plurality of described end groups that can react with the hydrocarbon (i) of the active group of isocyanate reaction, and it provides hydrocarbon skeleton for oligomer.The active group of isocyanates can be mercaptan, amino or hydroxyl.Particularly preferably be hydroxyl.Owing to amino and mercapto are arranged, so urea alkane oligomer can comprise urea groups or ghiourea group.The molecular weight of hydrocarbon part is preferably about 400 to about 4,000.In this case, adopt carrene to make solvent, make standard, measure molecular weight with gel permeation chromatography (GPC) with the polystyrene molecular weight.So-called " hydrocarbon " means and contains a plurality of methylene (CH
2-) the non-aromatics compound, it can contain inner unsaturated bond and hang unsaturated bond.Fully saturated (being hydrogenation) hydrocarbon is preferred, because the dielectric dissipation factor of solidifying coating increases with the increase of undersaturated degree.Suitable hydrocarbon polyalcohol comprise hydroxy terminal, wholly or in part hydrogenation 1, the 2-polybutadiene; 1,4-and 1,2-polybutadiene copolymer; Being hydrogenated to the iodine number is 1 of 9-21, the 2-polybutadiene polyol; Polyisobutene polyol of hydrogenation and composition thereof etc. wholly or in part.The polyalcohol of preferred hydrocarbons is complete hydrogenation basically, and therefore, preferred polyhydric alcohols is 1 of hydrogenation, the 2-polybutadiene, with 1 of hydrogenation, 4-, 1,2-polybutadiene copolymer, in this copolymer, contain the 50-80%1 that has an appointment, 4-butadiene and 50-20% 1,2-butadiene copolymer monomer.Suitable hydrocarbon polyamines or hydrocarbon polythiol comprise with mercapto or the amino compound that replaces above-mentioned polyalcohol hydroxyl to form.
The polyisocyanates composition (ii) be aromatic hydrocarbons or non-aromatics, preferred non-aromatics.Suitable aromatic hydrocarbons polyisocyanates is a toluene di-isocyanate(TDI).Can adopt the non-aromatics polyisocyanates of 4-20 carbon atom.Suitable aliphatic saturated hydrocarbon polyisocyanates comprises IPDI; Dicyclohexyl methyl hydride-4,4 '-vulcabond; 1,4-butylidene vulcabond; 1,5-pentylidene vulcabond; 1, the inferior heptyl vulcabond of 7-; 1, the 8-inferior octyl diisocyanate; 1, the inferior nonyl vulcabond of 9-; 1, the inferior decyl vulcabond of 10-; 2,2,4-trimethyl-1,5-pentylidene vulcabond; 2,2 '-dimethyl-1,5-pentylidene vulcabond; 3-methoxyl group-1, the 6-hexylidene diisocyanate; 3-butoxy-1,6 hexylidene diisocyanate; ω, ω '-dipropyl ether vulcabond; 1, the 4-cyclohexyl diisocyanate; 1, the 3-cyclohexyl diisocyanate; Trimethyl hexylidene diisocyanate and composition thereof.IPDI is preferred aliphatic hydrocarbon polyisocyanates.
The employing consumption is that the catalyst of 100-200ppm can improve the hydrocarbon of hydroxy terminal and the reaction speed between the diisocyanate.Suitable catalyst comprises two fourth tin, two laurate salt, two fourth tin-oxides, two fourth tin, two-2-caproate, stannous oleate, stannous octoate, lead octoate, acetoacetate is ferrous and amine, for example triethylamine, diethyl methylamine, triethylenediamine, dimethylamino ethylamine, morpholine, N-ethylmorpholine, piperazine, N, the N-dimethyl benzylamine, N, N-dimethyllaurylamine and composition thereof, preferred catalyst is two fourth tin, two laurate salt.
The end-blocking monomer (iii) is the aliphatic hydrocarbon acrylate or the aliphatic hydrocarbon methacrylate of hydroxy terminal, preferably oxyalkylated (methyl) acrylate, wherein in the presence of epoxy butane, 1-10 molecule ethylidene, propylidene and acrylic or methacrylic acid react.
Can be used as the end-blocking monomer suitable hydroxy terminal-acrylate, comprise hydroxy-ethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, and hydroxy propyl methacrylate.Preferred hydroxy-ethyl acrylate is because it can give polyureas alkane oligomer curing rate faster.The molecule ratio of preferred hydrocarbon, vulcabond and end-blocking monomer was near 1: 2: 2.
Second kind of composition (b) is made of one or more simple functions or multifunctional diluent.Preferred diluent is acrylate or methacrylate official energy.Yet, also can use the monomer of other type on a small quantity.The amount of preferred component (b) is about 20-80% (weight) of total clad compositions, more preferably from about 20-70% (weight).The particularly preferred monofunctional diluent of about 10-50% (weight) and the multifunctional diluent of 5-40% (weight) of being to use.
Second kind of composition (b) of composition preferably includes the monomer diluent of monofunctional alkyl acrylate or alkylmethacrylate base.The moieties of monomer has 6-18 carbon atom, preferred 8-15 carbon atom, so it has the feature of hydrocarbon.This monomer can be straight chain, side chain or loop chain.Press the total weight of clad compositions, this composition accounts for about 5% to about 50% of composition weight.Preferably account for composition weight about 5% to about 50%, more preferably from about 10% to about 40%.
Selected monomer is compatible with above-mentioned oligomer.C
6-C
18Alkyl acrylate or C
6-C
18The example that alkylmethacrylate base monomer is suitable comprises Hexyl 2-propenoate; Hexyl methacrylate; Cyclohexyl acrylate; Cyclohexyl methacrylate; 2-EHA; Methacrylic acid 2-Octyl Nitrite; Isooctyl acrylate monomer; EHMA; 2-ethyl hexyl acrylate; 2-Propenoic acid, 2-methyl-, octyl ester; Decyl acrylate; Decyl-octyl methacrylate; Isodecyl acrylate; Isodecyl methacrylate; Isobornyl acrylate; Isobornyl methacrylate; Lauryl acrylate; Lauryl methacrylate; Acrylic acid octadecane ester; Methacrylic acid octadecane ester.
Second kind of composition also preferably includes the multifunctional diluent of alkyl acrylate (or monomer), and its amount is about 5-50% (weight), preferably about 5-40% (weight).The suitable example of these polyfunctional monomers is C
4-C
15Hydrocarbon dihydroxylic alcohols acrylate; C
4-C
15Hydrocarbon dihydroxylic alcohols methacrylate; And the mixture of above-claimed cpd.The term hydrocarbon comprises cycloalkyl.Other suitable polyfunctional acrylic ester is (oxyalkylated) polyalcohol polyacrylate.The example of suitable polyfunctional monomer comprises butanediol dimethylacrylate, butanediol diacrylate, the propylene glycol dimethylacrylate, propylene glycol diacrylate, the pentanediol dimethylacrylate, the pentanediol diacrylate, hexanediol dimethacrylate, hexanediyl ester, neopentylglycol dimethacrylate, neopentylglycol diacrylate, trimethylolpropane triacrylate, trimethylol-propane trimethacrylate, polypropyleneglycol diacrylate, polypropylene glycol dimethacrylate, cyclohexane two-methyl diacrylate or-methacrylate and tristane dimethanol two (methyl) acrylate.
Preferred alkyl acrylate ester monomer comprises isobornyl acrylate, 2-EHA, Isooctyl acrylate monomer, cyclohexyl acrylate, hexanediyl ester, tristane dimethanol-diacrylate.
The consumption of other diluent that can adopt is preferably less than about 10% (weight).The example of these diluents is that molecular weight is lower than 500 N-vinyl functional or vinethene functional compound.The example of these diluents is N-caprolactam, butyl-vinyl ethers, triethylene glycol divinyl ether, butanediol-divinyl ether etc.
The consumption of preferred diluent is enough to viscosity adjustment with total clad compositions to being lower than about 2000mPa.s, preferably is lower than about 800mPa.s, and this viscosity is down with Ku Aite (couette) instrument (cup-float viscosimeter under frequency 100rpm) mensuration at 25 ℃.
Preferred clad compositions of the present invention does not comprise the monomer that a large amount of dipole moments are stronger, for example N vinyl pyrrolidone, phenoxyethyl acrylate, polyoxy alkyl-alkyl phenol acrylate etc.And preferably clad compositions does not comprise those monomers that comprise dipole in a large number easily, for example contains the acrylate of aromatic hydrocarbon group, for example phenyl acrylate.By measuring loss factor, those skilled in the art can determine the allowance in the composition at an easy rate.
Coating is a radiation-curable, available electron bundle irradiation or coating is solidified with the rayed of the about 200-700mm of wavelength.Under latter event, composition comprises that the mixture of the compound that generated by photosensitive group or compound is as light trigger.
When the light trigger of effective dose caused hardening with radiation when using less, light trigger must provide rational curing rate, and can not make the too early gelation of composition.
Suitable light trigger comprises following compound: hydroxycyclohexylphenylketone; The hydroxymethyl phenylacetone; The Dimethoxyphenyl acetophenone; The 2-methyl isophthalic acid, [4-(methyl mercapto) phenyl]-2-morpholino-acetone-1; 1-(4-cumenyl)-2-hydroxy-2-methyl acetone-1; 1-(4-dodecylphenyl)-2-hydroxy-2-methyl acetone-1; 4-(2-hydroxyl-oxethyl) phenyl-(2-hydroxyl-2-propyl group) ketone; The diethoxy acetophenone;-2,2-two-in addition-the butoxy acetophenone; The mixture of diethoxy-phenyl-acetophenone and these compounds.
If the employing light trigger is pressed total composition and calculated, preferred photoinitiator accounts for about 1.0% to about 10.0% of composition weight.The amount of preferred photoinitiator is about 2.0% to about 7.0% (weight).Selective light initator like this: when using initator, press consumption, require curing rate to be lower than about 2.0J/cm to modulus curve determination curing rate by design quantity
2, preferably be lower than about 1.0J/cm
2
Also comprise adhesion promoter in the preferred composition.Preferred adhesion promoter is to contain the group that can participate in the group curing reaction and contain the compound that can adhere to the group on the metallic conductor.But can participate in group preferred vinyl, (methyl) acrylate or the mercaptan of curing reaction.Can adhere to the preferred hydroxyl of group, acid, zirconates, titanate or silane on the metallic conductor.Acid can be for example carboxylic acid, phosphoric acid or sulfonic acid.The most preferably carboxylic acid or the phosphoric acid of (methyl) acrylate functional.Some examples of suitable adhesion promoter include but not limited to (methyl) hydroxy-ethyl acrylate, (methyl) hydroxypropyl acrylate, two or tri-alkoxy zirconate or titanate esters, vinyltrimethoxy silane sulfydryl propyl trimethoxy silicane, acrylic acid, methacrylic acid, β-propyloic acrylic ester, Ebecryl 170 and Ebercyl 169.The Ebercyl product is the derivative of acrylate, can buy from the Radcure Specialties of Atlanta, the Georgia State, and they are adhesion promoters of phosphate.
Having the monoesters of following general formula or dibasic acid esters or phosphoric acid also is the adhesion promoter that suits:
M+l+p=3R=H or CH in the formula
3A=C
nH
2nAnd 2≤n≤6R '=C
1-C
14Alkyl, aryl, alkaryl or alkene oxygen base.
Representational various organophosphorus esters with above-mentioned general formula include but not limited to: (1) methyl acryloxy ethyl phosphonic acid ester, and in the formula
(R=CH
3A=-C
2H
4-; R '=CH
3, m=1 and p=1); (2) ethyl-methyl acryloxy ethyl phosphonic acid ester is in the formula
(R=CH
3A=-C
2H
4-; R '=C
2H
5); M=1 and p=1); (3) propyl group acryloxy ethyl phosphonic acid ester is in the formula
(R=H; A=-C
2H
4-; R '=C
3H
7, m=1 and p=1); (4) methacryloxyethyl phosphate is in the formula
(R=H; A=-C
2H
4-; R '=CH
3, m=1 and p=1); (5) ethyl propylene acyloxy ethyl phosphonic acid ester is in the formula
(R=H; A=-C
2H
4-; M=1 and p=1; R '=C
2H
5); (6) propyl methyl acyloxy ethyl phosphonic acid ester is in the formula
(R=CH
3A=-C
2H
4-; R '=C
3H
7M=1 and p=1); (7) two (methacryloxyethyl) phosphate is in the formula
(R=CH
3A=-C
2H
4-; M=2; 1=0; P=1); (8) two (acryloxy ethyl) phosphate is in the formula
(R＝H；A＝-C
2H
4-；m＝2；l＝0；p＝1)。
Adhesion promoter helps clad compositions to adhere on the metallic conductor.The consumption of adhesion promoter can be about 0.2-5% (weight) of composition.Be careful during use, can not make the consumption of adhesion promoter big to making insulation property be reduced to underproof degree.The advantage that clad compositions of the present invention is not suspected is to use the adhesion promoter of effective dose still can reach very good insulation property.
Except above-mentioned composition, said composition also can contain other composition well known to those skilled in the art, comprising stabilizer, surfactant, plasticizer, chain-transferring agent etc.
In addition, use a spot of pigment or dyestuff to make that coating is painted benefits.This makes can directly with the naked eye check the metallic conductor that coating is arranged intuitively.Only some is surrounded by under the situation of coating at metallic conductor, and this is useful especially.Suitable pigment or dyestuff be, for example copper phthalocyanine blue, crystal violet lactams (orchid), crystallization peacock green, sheet magenta (sheet fed rubine) (red).If use pigment, the relative clad compositions of its consumption is generally red 0.2-5% (weight).
Can adopt known method for coating that coating is executed and be applied on the metallic conductor, for example spraying, vacuum impregnation coating and coating (doctoring).For getting rid of the inhibitory action of oxygen, can under blanket of nitrogen, execute deposited coating, yet this is dispensable.For example, if use the amount of light trigger bigger, the curing on film surface also can meet the demands.
Further set forth the present invention by following non-limiting examples.The preparation of embodiment acrylate-functional oligomer A
IPDI (IPDI 429g) and 1g BHT (butylated hydroxy toluene), 0.7g phenol thiazine and 2g dibutyl tin two laurate salt are dissolved in the lauryl acrylate (420g).(HEA) adds in this mixture lentamente with the 224g hydroxy-ethyl acrylate, and keeps temperature to be lower than 35 ℃.In acrylate-isocyanate adduct, add 2318g hydro carbons dihydroxylic alcohols (Nisso PB 2000) and it is reacted.Add about 105g lauryl acrylate, and the final content of definite NCO is lower than 0.1%.The theoretical molecular of this oligomer A is 3089, and this oligomer A is the clear solution of 85% oligomer in 15% lauryl acrylate.The preparation of acrylate-functional oligomer B
With with preparation oligomer A similar methods, prepare oligomer with 400g IPDI, 139g HEA, 2876g Nisso PB 2000 and 380g lauryl acrylate.The theoretical molecular of this oligomer is 5733.The preparation of acrylate-functional oligomer C
With with preparation oligomer A similar methods, prepare oligomer C with 81g IPDI, 42g HEA, 430gNisso PB 2000 and 140g isobornyl acrylate.The theoretical molecular of this oligomer is 3093.Example I-VII
With oligomer in 15% diluent mixture A-C and other diluent and the light trigger shown in the table 1 prepare coating.Coating executed being applied on the aluminium sheet, and with fused mass D bulb (fusion D bulb) 2J/cm
2Photocuring.In order to measure loss factor, on glass plate, cast the thick film of 150 μ m, and with the photocuring of 2J/cm; With the loss factor of the reference instrument with stainless steel electrode under measuring 24 ℃ and 150 ℃ under the 60Hz.The result also is shown in table 1.
Table 1
1)Photomer 3016 is: bisphenol-A-diacrylate
2)SA 1002 is: three cyclododecane dimethanol diacrylates
3)SR 349 is: the bisphenol-A of ethoxylation-diacrylate example VII A I-XVIII
| Composition | ????I | ???II | ??III | ??IV | ??V | ??VI | ??VII |
| Oligomer A oligomer B oligomer C lauryl acrylate isobornyl acrylate Photomer 3016 1)SA?1002 2)SR?349 3)Irgacure?500 | ??51.8 ??36.4 ??9.1 ??2.7 | ??51.8 ??36.4 ??9.1 ??2.7 | ??57 ??30 ??10 ??3 | ??57 ??30 ??10 ??3 | ??57 ??30 ??10 ??3 | ??57 ??30 ??10 ??3 | ??57 ??30 ??10 ??3 |
| Loss factor 60Hz at 24 ℃ at 150 ℃ | ??0.028 ??0.098 | ??0.038 ??0.106 | ??0.030 ??0.021 | ??0.033 ??0.023 | ??0.033 ??0.023 | ??0.015 ??0.010 | ??0.027 ??0.028 |
| Dielectric constant | ＜3.0 | ＜3.0 | ＜3.0 | ＜3.0 | ＜3.0 | ＜3.0 | ＜3.0 |
With similar methods, prepare other clad compositions and test.In these embodiments, adopt oligomer C.
These compositions and result in table 2 and table 3, have been summarized.Clad compositions is applied on the aluminium sheet,, makes the film of 12.5 μ m with the photocuring of 1J/cm; In addition, coating watered be coated on the glass plate, and use 2J/cm
2Photocuring.
Table 2
| Composition | ???VIII | ????IX | ????X | ????XI | ????XII | ??XIII |
| Oligomer C isobornyl acrylate SA 1002 hexanediyl ester cyclohexyl acrylate Isooctyl acrylate monomer Darocure 1173 Ebecryl 170 phthalocyanine blues | ????50 ????24 ????20 ????3 ????3 | ????50 ????24 ????20 ????3 ????3 | ????50 ????20 ????24 ????3 ????3 | ????54 ????10.8 ????25.9 ????6 ????3.2 | ????48.5 ????23.3 ????19.4 ????6 ????2.9 | ??53.8 ??10.8 ??25.8 ??5.9 ??3.2 ??0.5 |
| Viscosity (25 ℃) | ????700 | ????500 | ????785 | ????730 | ????450 | ??730 |
| At 25 ℃ of following loss % at 150 ℃ of following loss % | ????0.2 ????0.83 | ????0.029 ????0.032 | ????0.019 ????0.060 | ????0.024 ????0.082 | ????～0.02 ????～0.05 | ??0.025 ??0.053 |
| Be immersed in the stability in 150 ℃ the oil | By | By | Damage is arranged slightly | By | By | By |
| Interruption at 60 ℃ of following coating | Do not measure | Do not measure | Do not measure | By | By | By |
| Dielectric constant (24 ℃, 60Hz) | ???＜2.7 | ???＜2.7 | ???＜2.7 | ???＜2.7 | ???＜2.7 | ?＜2.7 |
| Extension % Tg (℃) 90% bend test | By | -17 pass through | -11 pass through | By | By | By |
Table 3
| ??XIV | ????XV | ????XVI | ????XVII | ???XVIII | |
| Composition oligomer C isobornyl acrylate tristane dimethanol diacrylate cyclohexanediol diacrylate Darocure 1173 Ebecryl 170 | ??50 ??14 ??30 ??3.0 ??3.0 | ????60 ????14 ????20 ????3.0 ????3.0 | ????50 ????20 ????24 ????3.3 ????3.3 | ????50 ????24 ????20 ????3.0 ????3.0 | ???50 ???20 ???24 ???3.0 ???3.0 |
| Viscosity (mPa.s) | ??1910 | ????785 | ????700 | ????1240 | ???1090 |
| Loss factor (25 ℃, 60Hz) loss factor (150 ℃, 60Hz) | ??0.020 ??0.083 | ????0.029 ????0.032 | ????0.019 ????0.060 | ????0.024 ????0.082 | ???～0.02 ???～0.08 |
| Be immersed in the stability in 150 ℃ the oil | By | By | Damage is arranged slightly | By | By |
| 180 ° of bend tests | By | By | By | By | By |
Claims (17)
1. have about 10 metallic conductors to the curing coating of about 500 μ m thickness, the dielectric dissipation factor of its coating (60Hz, 24 ℃) is less than about 0.05, and this coating is by the coating of a kind of hardening with radiation of multiple one-tenth assignment system, comprising:
A) a kind of acrylate-functional urea alkane oligomer with hydrocarbon skeleton;
B) one or more simple functions or multifunctional diluent, and choose wantonly; With
C) light trigger.
2. according to the metallic conductor of claim 1, wherein metal is iron, copper, aluminium or silver.
3. according to the metallic conductor of claim 2, wherein metal is aluminium, copper or silver.
According to claim 1-3 each have a metallic conductor that solidifies coating, wherein the curing coating of thin 25 μ m 25 ℃ down elongation be at least about 50%.
According to claim 1-4 each have a metallic conductor that solidifies coating, wherein solidify coating at 60Hz, the loss factor under 150 ℃ is less than about 0.2.
According to claim 1-5 each have a metallic conductor that solidifies coating, wherein coating wherein also comprises a kind of adhesion promoter by multiple one-tenth assignment system.
According to claim 1-6 each have a metallic conductor that solidifies coating, wherein solidifying coating is a kind of coating of hardening with radiation, this coating is comprised by multiple one-tenth assignment system:
A) about 20 have the acrylate-functional urea alkane oligomer of hydrocarbon skeleton to about 80% (weight);
B) the single or many acrylate-functional monomer of one or more of about 20 to about 80%, and be to appoint
Choosing;
C) about 1 compound that generates to one or more photosensitive groups of about 10% (weight); With
Choose wantonly
D) adhesion promoter of about 0.2-5% (weight).
According to claim 1-7 each have a metallic conductor that solidifies coating, wherein solidifying coating is the coating that utilizes the about 200-700 μ of wavelength m photoirradiation to solidify, wherein composition c relatively always the amount of clad compositions be about 1-10% (weight).
According to claim 1-8 each have a metallic conductor that solidifies coating, wherein solidify coating by multiple one-tenth assignment system, comprising:
A) the acrylate-functional urea alkane oligomer of about 30-65% (weight) with hydrocarbon skeleton
B) at least two kinds of acrylate-functional diluents of about 20-70% (weight), a kind of is single
Acrylate, a kind of is many acrylate functional compound
C) one or more of about 1-10% (weight) are by the compound of photosensitive group generation
D) the sour official of about 0.2-5% (weight) can adhesion promoter.
According to claim 6-9 each have a metallic conductor that solidifies coating, wherein adhesion promoter is a kind of acid-functionalized compound.
11. according to claim 1-10 each have a metallic conductor that solidifies coating, wherein coating is by multiple one-tenth assignment system, wherein a kind of composition is pigment or the dyestuff of about 0.2-5% (weight).
12. according to claim 1-11 each have a metallic conductor that solidifies coating, wherein coating layer ranges in thickness is about 10-100 μ m.
13. according to claim 1-12 each have a metallic conductor that solidifies coating, wherein the dielectric constant of coating is less than about 5.
14. according to claim 1-13 each have a metallic conductor that solidifies coating, wherein coating in being exposed to deep fat (150 ℃) after, dielectric dissipation factor is less than about 0.05 (60Hz, 24 ℃).
15. according to claim 1-14 each have a metallic conductor that solidifies coating, wherein coating is grouped into by following one-tenth basically by multiple one-tenth assignment system:
A) the acrylate-functional urea alkane oligomer of about 30-65% (weight) with hydrocarbon skeleton
B1) the mono acrylic ester official of about 10-50% (weight) can diluent
B2) many acrylate-functional diluent of about 5-40% (weight)
C) at least a light trigger of about 2-7% (weight)
D) adhesion promoter of about 0.2-4% (weight)
E) pigment of about 0.2-2% (weight).
16. the clad compositions of radiation-curable comprises:
A) has the acrylate-functional urea alkane oligomer of hydrocarbon skeleton
B) one or more simple functions or multifunctional diluent, and choose wantonly
C) one or more compounds that generate by photosensitive group at coating by behind the hardening with radiation, it is at 60Hz, and the dielectric dissipation factor under 24 ℃ is less than about 0.05, and it is at 60Hz, loss factor under 150 ℃ less than about 0.2 and 25 ℃ down the coating elongation of thin 25 μ m be at least about 50%.
17. according to the coating of the radiation-curable of claim 16, wherein urea alkane oligomer is the product of polyalcohol, polyisocyanates and the hydroxyl-functional end-blocking monomer reaction of hydrocarbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97181141 CN1242865A (en) | 1996-10-31 | 1997-10-27 | Dielectric, radiation curable coating compositions and metal conductors coated with such coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60/029,780 | 1996-10-31 | ||
| CN 97181141 CN1242865A (en) | 1996-10-31 | 1997-10-27 | Dielectric, radiation curable coating compositions and metal conductors coated with such coating |
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| CN1242865A true CN1242865A (en) | 2000-01-26 |
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| CN 97181141 Pending CN1242865A (en) | 1996-10-31 | 1997-10-27 | Dielectric, radiation curable coating compositions and metal conductors coated with such coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101443513B (en) * | 2006-12-01 | 2011-08-24 | Dic株式会社 | Leather-like sheet |
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1997
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101443513B (en) * | 2006-12-01 | 2011-08-24 | Dic株式会社 | Leather-like sheet |
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