CN107148348A - Ceramic green sheet manufacturing process stripping film - Google Patents

Ceramic green sheet manufacturing process stripping film Download PDF

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Publication number
CN107148348A
CN107148348A CN201680005002.7A CN201680005002A CN107148348A CN 107148348 A CN107148348 A CN 107148348A CN 201680005002 A CN201680005002 A CN 201680005002A CN 107148348 A CN107148348 A CN 107148348A
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China
Prior art keywords
stripping film
green sheet
ceramic green
polysiloxane
agent layer
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森裕
森裕一
佐藤庆
佐藤庆一
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Lintec Corp
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Lintec Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/30Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/42Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04Coating
    • C08J7/043Improving the adhesiveness of the coatings per se, e.g. forming primers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/28Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/283Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04Coating
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04Coating
    • C08J7/044Forming conductive coatings; Forming coatings having anti-static properties
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/20Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08L61/26Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08L61/28Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04Polysiloxanes
    • C08L83/06Polysiloxanes containing silicon bound to oxygen-containing groups
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G13/00Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/748Releasability
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08Dimensions, e.g. volume
    • B32B2309/10Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105Thickness

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Materials Engineering (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Producing Shaped Articles From Materials (AREA)

Abstract

The present invention provides a kind of ceramic green sheet manufacturing process with stripping film (1), it possesses base material (11) and is arranged on the unilateral peeling agent layer (12) of base material (11), ceramic green sheet manufactures processing procedure with stripping film (1), peeling agent layer (12) is formed by remover combination, and the remover combination contains the melmac that polysiloxane and total acid number with least one hydroxyl are 0.030~0.154mgKOH/g in a molecule.The ceramic green sheet manufacturing process shows good fissility with stripping film (1), and can suppress transfer of the polysiloxane from peeling agent layer (12) to ceramic green sheet.

Description

Ceramic green sheet manufacturing process stripping film
Technical field
The present invention relates to stripping of the one kind used in the process of manufacture ceramic green sheet (Ceramic green sheet) Film.
Background technology
Since in the past, when manufacturing the multi-layered ceramic product of multi-layer ceramic capacitor or multilayer ceramic substrate etc, pottery is made Porcelain raw cook shape, stacking multi-disc obtained by ceramic green sheet and burnt till.
Ceramic green sheet by the way that the ceramic slurry containing the ceramic material such as barium titanate or titanium oxide is coated on stripping film and Shaping.For stripping film, it is desirable to following fissility, i.e., can not cracking, be broken etc. in the case of, with appropriate Peeling force peels off the stripping film from the thin ceramic green sheet shaped on the stripping film.
Stripping film is generally made up of base material and the peeling agent layer being arranged on a face of base material.As peeling agent layer, deposit In the peeling agent layer using ultra-violet solidified compound as material.The peeling agent layer will be by that will contain ultra-violet solidified chemical combination The remover combination of thing is coated on base material, is irradiated by ultraviolet and is solidified to form said composition.However, ultraviolet Exist in line curability compound causes to solidify the species being obstructed because of oxygen.During using such ultra-violet solidified compound, There is the one side (face connected with ceramic slurry, ceramic green sheet of the side opposite with base material of peeling agent layer;Hereinafter, sometimes referred to as " stripping From face ") the neighbouring insufficient situation of solidification.If the solidification of peeling agent layer is insufficient, the elasticity reduction of peeling agent layer.It is tied Tab phenolphthaleinum is caused, and becomes strong from peeling force required when stripping film is peeled off on the ceramic green sheet that release surface shapes.
On the other hand, Patent Document 1 discloses a kind of stripping film, it is provided with the stripping film containing melmac Deng Thermocurable compound and the peeling agent layer of polysiloxanes (polysiloxane).In the stripping film, because peeling agent layer contains There is polysiloxane, therefore, it is possible to which above-mentioned peeling force is reduced to a certain degree.In addition, melmac contracts because of heating Close, and can not produce and as described above solidify because being hindered caused by oxygen.Therefore, it is possible to avoid using ultra-violet solidified Distinctive above mentioned problem during compound.
In addition, generally " melmac " refers to:Comprising a variety of melamine compounds and by one or more trimerizations The mixture of at least one of the syncytiam of cyanamide compound condensation.In this specification, " melmac " this Word refers to said mixture or a kind of aggregation of melamine compound.Further, in this specification, by the melamine tree The material of fat solidification is referred to as " melamine cured thing ".
Prior art literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2004-82370 publications
The content of the invention
The technical problem to be solved in the present invention
However, during manufacture multi-layered ceramic product, there is the skew in generation face direction between be laminated ceramic green sheet Situation.This skew for example may be considered, the hot pressing in the skew of the stratification position in lamination process, hot pressing process Close the accumulation such as skew caused by the contraction in caused skew, sintering circuit and produce.
As described in Patent Document 1, if being shaped using the stripping film for possessing the peeling agent layer containing polysiloxane Ceramic green sheet, then easily produce polysiloxane from peeling agent layer to the transfer of the ceramic green sheet.If stacking multi-disc is poly- to be had The ceramic green sheet that organic siloxane is shifted manufactures multi-layered ceramic product, then the mutual bonding force reduction of ceramic green sheet, is also easy to produce Skew as described above.Its result causes, the yield rate reduction in the manufacture of multi-layered ceramic product.Have accordingly, it would be desirable to which one kind is poly- Organic siloxane shifts less stripping film to ceramic green sheet.
The present invention be in view of this actual conditions and complete, its object is to there is provided it is a kind of show good fissility, The ceramic green sheet manufacturing process stripping film that transfer of the polysiloxane from peeling agent layer to ceramic green sheet simultaneously is inhibited.
Solve the technological means of technical problem
To achieve these goals, first, the present invention provides a kind of ceramic green sheet manufacturing process stripping film, and it possesses base Material and the unilateral peeling agent layer for being arranged on the base material, it is characterised in that the peeling agent layer is formed by remover combination, The remover combination contains polysiloxane and total acid number with least one hydroxyl in a molecule 0.030~0.154mgKOH/g melmac (invention 1).
According to foregoing invention (invention 1), peeling agent layer shows good stripping by being formed by following remover combinations Property, while can suppress transfer of the polysiloxane from peeling agent layer to ceramic green sheet, the remover combination contains one The melamine that polysiloxane and total acid number with least one hydroxyl are 0.030~0.154mgKOH/g in individual molecule Polyimide resin.
In foregoing invention (invention 1), it is poly- that there is the polysiloxane at least one to be selected from preferably in a molecule The organic group (invention 2) of one or more of ester group and polyether-based.
In foregoing invention (invention 1,2), at least one in the hydroxyl is preferably in the polysiloxane End (invention 3).
In foregoing invention (invention 1~3), the weight average molecular weight of the polysiloxane is preferably 1000~300000 (invention 4).
In foregoing invention (invention 1~4), the melmac preferably comprises the chemical combination represented by following formulas (a) Thing or the syncytiam (invention 5) by more than two compound condensations.
[chemical formula 1]
In formula, X represents-H ,-CH2- OH or-CH2- O-R, it is optionally each identical or different.R represents that carbon number is 1~8 Alkyl, optionally each it is identical or different.At least one X is-CH2-OH。
In foregoing invention (invention 1~5), the remover combination is preferably further containing acid catalyst (invention 6).
In foregoing invention (invention 1~6), the thickness of the peeling agent layer is preferably 0.1~3 μm (invention 7).
In foregoing invention (invention 1~7), the ceramic green sheet manufacturing process preferably further possesses positioned at institute with stripping film State the resin bed (invention 8) between base material and the peeling agent layer.
Invention effect
The ceramic green sheet manufacturing process of the present invention shows good fissility with stripping film, while can suppress poly organo Transfer of the alkane from peeling agent layer to ceramic green sheet.
Brief description of the drawings
Fig. 1 is the profile of the ceramic green sheet manufacturing process stripping film of an embodiment of the invention.
Fig. 2 is the profile of the ceramic green sheet manufacturing process stripping film of another embodiment of the invention.
Embodiment
Hereinafter, embodiments of the present invention are illustrated.
[ceramic green sheet manufacturing process stripping film]
As shown in figure 1, stripping film 1A (following, the sometimes referred to simply as " strippings of the ceramic green sheet manufacturing process of first embodiment From film 1A ") by possess base material 11 and be layered in base material 11 a face (in Fig. 1 be its upper surface) peeling agent layer 12 and structure Into.
In addition, as shown in Fig. 2 the ceramic green sheet manufacturing process of second embodiment with stripping film 1B (it is following, sometimes referred to as For " stripping film 1B ") by possess base material 11, be layered in base material 11 a face (being its upper surface in Fig. 2) resin bed 13 and The peeling agent layer 12 for being layered in the one side (being its upper surface in Fig. 2) with the opposite side of base material 11 of resin bed 13 is constituted.
1. peeling agent layer
Stripping film 1A, stripping film 1B peeling agent layer 12 are formed by remover combination, and the remover combination contains The trimerization that polysiloxane and total acid number with least one hydroxyl are 0.030~0.154mgKOH/g in one molecule Melamine resin.
In stripping film 1A, stripping film 1B, the remover combination for forming peeling agent layer 12 contains polysiloxane. Therefore, the surface free energy of the release surface of peeling agent layer 12 is suitably reduced.Further, remover combination contains melamine Resin.Therefore, by heating remover combination can be made fully to solidify, the peeling agent layer 12 formed has sufficient bullet Property.Thus, stripping film 1A, stripping film 1B are shelled from the ceramic green sheet shaped in stripping film 1A, stripping film 1B release surface From when peeling force suitably reduce, play good fissility.
In addition, in stripping film 1A, stripping film 1B, for forming the trimerization contained by the remover combination of peeling agent layer 12 The total acid number of melamine resin is 0.030~0.154mgKOH/g.This represents that the melmac has more acid functional Group.The acidic functionality is derived mainly from the methylol (- CH in melmac2- OH) hydroxyl.On the other hand, remover Polysiloxane contained by composition also has at least one hydroxyl in a molecule.If making this remover combination Peeling agent layer 12 is solidified to form, then melmac is chemically bonded with polysiloxane in mutual hydroxyl, Form the structure that polysiloxane is fixed on melamine cured thing.Therefore, polysiloxane is in peeling agent layer 12 Move freely and limited.Therefore, in stripping film 1A, stripping film 1B release surface during shaped ceramic raw cook, it can suppress poly- organic Transfer of the siloxanes from peeling agent layer 12 to ceramic green sheet.Thus, when stacking using stripping film 1A, stripping film 1B the pottery shaped During porcelain raw cook, the mutual bonding force of ceramic green sheet is improved, and can suppress to produce skew between ceramic green sheet.
(1) melmac
For being formed in the remover combination of peeling agent layer 12, the total acid number of melmac for 0.030~ 0.154mgKOH/g, preferably 0.032~0.100mgKOH/g, particularly preferably 0.035~0.070mgKOH/g.Melamine The total acid number of resin refers to, in order that the group that can be reacted with potassium hydroxide contained in 1g melmacs is complete The quality (mg) of potassium hydroxide needed for reaction.In this specification, the total acid number of melmac is set to by practical measurement Value is represented, and is not represented by theoretical value.Here, the group that can be reacted with potassium hydroxide is methylol (- CH2-OH).Separately On the one hand, imino group (- NH-) and alkane ether (- CH2- OR) do not reacted with potassium hydroxide.In addition, melmac Shown in the test example of the specific assay method of total acid number as be described hereinafter.If total acid number is less than 0.030gKOH/g, melmac In the quantity of hydroxyl become not enough, the reaction between polysiloxane and melmac is not carried out fully.Its result Cause, in the peeling agent layer 12 formed, the quantitative change for being not secured to the polysiloxane of melamine cured thing is more, is also easy to produce Transfer from polysiloxane to ceramic green sheet.On the other hand, when total acid number is more than 0.154mgKOH/g, the condensation is had neither part nor lot in The acidic-group of reaction and the mutual condensation reaction of melmac is present in excess, it becomes difficult to control crosslinking rate.It is tied Really, it is possible to result in the quality reduction in the ceramic green sheet in release surface.
Specifically, above-mentioned melmac preferably comprise by following formulas (a) represent melamine compound or The syncytiam being condensed by more than two melamine compounds.
[chemical formula 2]
In formula (a), X represents-H ,-CH2- OH or-CH2-O-R.These groups constitute above-mentioned melamine compound each other Between condensation reaction in reactive group.Specifically, can be in-N-CH as-NH bases formed by H by X2- OH bases And-N-CH2Condensation reaction is carried out between-R bases.In addition, turning into-CH by X2- N-CH formed by-OH2- OH bases and pass through X turns into-CH2- N-CH formed by-R2- R bases can be together in-NH bases ,-N-CH2- OH bases and-N-CH2Contracted between-R bases Close reaction.In formula (a), at least one X is-CH2-OH.Due to there is at least one-CH2- OH bases, therefore, it is possible in the group institute Comprising hydroxyl and polysiloxane hydroxyl between reacted, as described above, the transfer of polysiloxane can be suppressed. When melmac includes the syncytiam being condensed by above-mentioned melamine compound, the syncytiam has at least in itself One-CH2- OH bases.
Above-mentioned-CH2In-O-R bases, R represents the alkyl that carbon number is 1~8.The carbon number is preferably 1~6, especially Preferably 1~3.As carbon number be 1~8 alkyl, can for example enumerate methyl, ethyl, propyl group, butyl, amyl group, hexyl, Octyl group etc., particularly preferred methyl.
Above-mentioned X is optionally each identical or different.In addition, above-mentioned R is optionally each identical or different.
In melamine compound, generally in the presence of following species:All X are-CH2- O-R full ether type;At least one Individual X is-CH2Imino group-methylol type that-OH and at least one X are H;At least one X is-CH2- OH and in the absence of the X for H Methylol type;And at least one X is H and in the absence of the-CH for being H2- OH imino-type.In stripping film 1A, stripping film 1B, From the angle for being easy to suppress the angle of curling and be easily achieved this physical property that total acid number is 0.030~0.154mgKOH/g Set out, above-mentioned melmac preferably comprises imino group-methylol type or methylol type melamine compound.Particularly exist In formula (a), preferably more X are-CH2- OH, is-CH specifically2- OH X quantity is preferably at least two, especially excellent Elect at least three as.
Above-mentioned melmac can include the syncytiam of 2~50 compounds by the expression of above-mentioned formula (a) of condensation, In addition the syncytiam of condensation 2~10 can be particularly included, further comprising the syncytiam for being condensed 2~30 The syncytiam for being condensed 2~5 can be included.
For being formed in the remover combination of peeling agent layer 12, the weight average molecular weight of melmac is preferably 350 ~10000, particularly preferably 700~5000, more preferably 1000~4000.By making weight average molecular weight be more than 350, Crosslinking rate is stable, can form smoother release surface.On the other hand, by making weight average molecular weight be less than 10000, The viscosity of remover combination, which can be suppressed, becomes too high.Thus, coating during remover combination is coated with base material 11 Become good.In addition, the weight average molecular weight in this specification is the standard polyphenyl second determined by gel permeation chromatography (GPC) method Alkene scaled value.
(2) polysiloxane
Polysiloxane has at least one hydroxyl preferably in a molecule.In addition, being not particularly limited poly- organic The upper limit of hydroxyl quantity in one molecule of siloxanes, for example, 20.Stripping film 1A, stripping film 1B peeling agent layer 12 by Remover combination containing polysiloxane is formed, thus, and the release surface of peeling agent layer 12 can play good stripping Property.Further, there is above-mentioned hydroxyl by making polysiloxane, polysiloxane can by with melmac Condensation reaction and be fixed on melamine cured thing.Its result causes, and can suppress polysiloxane from peeling agent layer 12 to pottery The transfer of porcelain raw cook.
On the structure in addition to above-mentioned hydroxyl in polysiloxane, above-mentioned fissility, poly-organosilicon are not being hindered Between the melamine compound that condensation reaction and melmac between oxygen alkane and melmac are included In the case of condensation reaction, it is not particularly limited.As polysiloxane, it can use by containing that following formulas (b) represent The polymer of silicon compound.
[chemical formula 3]
In formula (b), m is more than 1 integer.Furthermore it is preferred that R1~R8In at least one be hydroxyl or having with hydroxyl Machine group.Particularly preferably, R3~R8In at least one be hydroxyl or the organic group with hydroxyl.That is, preferably hydroxyl or have At least one in the organic group of hydroxyl is present in the end of polysiloxane.It is poly- to have by making hydroxyl be present in end Organic siloxane is easy between melmac carry out condensation reaction, can effectively suppress the transfer of polysiloxane.
In formula (b), preferably R1~R8In hydroxyl-removal beyond group at least one be organic group.Here, working as formula (b) R in1~R8In at least one be hydroxyl when, other are contained in R1~R8Organic group can be having with hydroxyl Machine group, or can be the organic group without hydroxyl.On the other hand, as the R in formula (b)1~R8When being not hydroxyl, its He is contained in R1~R8Organic group be the organic group with hydroxyl.In addition, in this manual, " organic group " is fixed For the organic group described later for not containing alkyl.The polysiloxane represented by formula (b), preferably at least has in a molecule There is 1, particularly preferably there is 1~10, further preferably there is 1~5 to have the organic group of hydroxyl or without hydroxyl Organic group.Here, organic group is preferably selected from the organic group of one or more of polyester base and polyether-based.One point There may be both polyester base and polyether-based in son.When polyester base or polyether-based include hydroxyl, the hydroxyl may reside in The end of these organic groups, or may reside in the side chain of these organic groups.It is upper by having polysiloxane Organic group is stated, in remover combination, polysiloxane is mixed well with melmac, can be pressed down during solidification Make them and occur extreme be separated.Thus, polysiloxane as described above and melmac can be carried out well Condensation reaction, and can also effectively suppress the transfer of polysiloxane.
In formula (b), R1~R8In above-mentioned group beyond group be preferably carbon number be 1~12 alkyl.It is used as carbon Atomicity is 1~12 alkyl, such as can enumerate methyl, ethyl, propyl group, butyl, amyl group, hexyl, octyl group, particularly preferred methyl.
R1~R8It is optionally identical or different.There are multiple R in addition, working as1And R2When, R1And R2It is optionally each identical or different.
The weight average molecular weight of above-mentioned polysiloxane is preferably 1000~300000, particularly preferably 3000~ 100000, more preferably 4000~50000.By making the weight average molecular weight of polysiloxane be more than 1000, peel off The surface free energy of the release surface of oxidant layer 12 is suitably reduced, and can be effectively reduced stripping film 1A, stripping film 1B from ceramics Peeling force when being peeled off on raw cook.It is less than 300000 by making the weight average molecular weight of polysiloxane, remover can be suppressed The viscosity of composition becomes too high, becomes prone to remover combination being coated on base material 11.
Relative to the mass parts of melmac 100, the content of the polysiloxane in remover combination is preferably 0.05~15 mass parts, particularly preferably 0.1~10 mass parts, more preferably 0.5~8 mass parts.By making remover The content of polysiloxane in composition is that more than 0.05 mass parts the surface free energy of the release surface of peeling agent layer 12 fills Divide ground reduction, appropriate peeling force can be realized.On the other hand, by making containing for the polysiloxane in remover combination Measure as below 15 mass parts, it can be ensured that the content of melmac.Thus, the elasticity of peeling agent layer 12 is improved, energy Enough realize appropriate peeling force.In addition, in stripping film 1A, stripping film 1B, as noted previously, as polysiloxane and melamine Reaction between polyimide resin and the transfer of polysiloxane can be suppressed.Therefore, contain even in remover combination more In the case of polysiloxane, the transfer of polysiloxane can also be adequately suppressed.
(3) other compositions
Remover combination preferably further contains acid catalyst.As the example of acid catalyst, preferably hydrochloric acid, sulfuric acid, Nitric acid, phosphoric acid, phosphorous acid, p-methyl benzenesulfonic acid etc., particularly preferred p-methyl benzenesulfonic acid.By making remover combination contain acid catalysis Agent, can effectively carry out the condensation reaction in above-mentioned melmac.
Relative to the mass parts of melmac 100, the content of the acid catalyst in remover combination is preferably 0.1~ 30 mass parts, particularly preferably 0.5~20 mass parts, more preferably 1~15 mass parts.
Remover combination can also contain crosslinking agent, reaction suppressor etc. in addition to the above ingredients.
(4) thickness of peeling agent layer
The thickness of peeling agent layer 12 is preferably 0.1~3 μm, particularly preferably 0.2~2 μm, more preferably 0.3~ 1.5μm.It is more than 0.1 μm by making the thickness of peeling agent layer 12, can effectively plays it as the function of peeling agent layer 12. Especially by making, the thickness ratio of the peeling agent layer 12 comprising melamine cured thing is generally thick, the elasticity change of peeling agent layer 12 Height, fissility is improved.In addition, by making the thickness of peeling agent layer 12 be less than 3 μm, by 1B volumes of stripping film 1A, stripping film When song is into web-like, it can suppress to produce adhesion.Compared with common peeling agent layer 12, the peeling agent layer 12 as 0.1~3 μm Thickness it is thicker.Typically, the thickness that there is peeling agent layer 12 is thicker, then the more tendencies of the transfer amount of polysiloxane, but In stripping film 1A, stripping film 1B peeling agent layer 12, due to producing the reaction of polysiloxane and melmac, therefore In the case that the thickness of peeling agent layer 12 is thicker, the transfer of polysiloxane can also be adequately suppressed.
2. base material
As long as stripping film 1A, stripping film 1B base material 11 can be laminated peeling agent layer 12 or resin bed 13 then has no special limit It is fixed.As the base material 11, for example, it can enumerate:By the polyester such as PET or PEN;It is poly- The polyolefin such as propylene or polymethylpentene;The film of the plastics such as makrolon, polyvinyl acetate formation.These films can be single Layer or identical type or different types of more than two layers of multilayer.Wherein preferred polyester film, it is particularly preferably poly- to benzene two Formic acid second diester film, further preferred twin shaft extends polyethylene terephthalate film.Due to polyethylene terephthalate film In processing, when of use etc., dust etc. is not likely to produce, therefore, it is possible to effectively prevent such as the ceramic slurry as caused by dust Coating it is bad etc..Further, by carrying out antistatic treatment to polyethylene terephthalate film, prevented so as to improve Light a fire or prevent as caused by electrostatic to be coated with bad etc. effect in ceramic slurry of the coating using organic solvent.
In addition, in the base material 11, using improve and be arranged at the peeling agent layer 12 on its surface or the tack of resin bed 13 as Purpose, according to required, can implement at surface treatment or priming paint based on oxidizing process or further provided for contouring method etc. on one or both sides Reason.As above-mentioned oxidizing process, for example, it can enumerate Corona discharge Treatment, plasma discharge processing, chromium oxidation processes (wet type), fire Flame processing, hot blast processing, ozone, ultraviolet treatment with irradiation etc..In addition, as above-mentioned further provided for contouring method, can for example enumerate sand-blast, Thermal spray facture etc..These surface preparations according to base material film species and suitably select, but from effect and operability angle Degree sets out, it is usually preferred to use Corona discharge Treatment method.
The thickness of base material 11 is usually 10~300 μm, preferably 15~200 μm, particularly preferably 20~125 μm.
3. resin bed
As shown in Fig. 2 resin bed 13 set in stripping film 1B is located between base material 11 and peeling agent layer 12.By Set between base material 11 and peeling agent layer 12 recessed in resin bed 13, the one side for the side of peeling agent layer 12 that base material 11 can be absorbed It is convex, the roughness of reduction stripping film 1B release surface.
It is not particularly limited as the resin for forming resin bed 13, for example, can enumerates melmac, epoxy resin, phenol Urea formaldehyde, urea resin, polyester resin, polyurethane resin, acrylic resin, polyimide resin, benzoxazine colophony etc..Its In, resin bed 13 is particularly preferably formed by melmac.By forming resin bed 13, resin bed 13 by melmac Bonding force between base material 11 and between resin bed 13 and peeling agent layer 12 is improved.Further, stripping film 1B stripping Elasticity from face side is improved, and peeling force when stripping film 1B is peeled off from ceramic green sheet suitably declines.
Melmac for forming resin bed 13 is not particularly limited.However, from suppress resin bed 13 itself The angle of contraction set out, as the melmac for forming resin bed 13, preferably use for forming peeling agent layer 12 And the melmac used.That is, the composition formation resin bed 13 containing the melmac is preferably used.
In addition, resin bed 13 can contain the composition beyond melmac, example while containing melmac Such as epoxy resin, phenolic resin, urea resin, polyester resin, polyurethane resin, acrylic resin, polyimides can such as be contained The resins such as resin, benzoxazine colophony.When resin bed 13 contains these resins, relative to the mass parts of melmac 100, Its content is preferably 1~200 mass parts, particularly preferably 10~150 mass parts, more preferably 30~100 mass parts.This Outside, resin bed 13 can contain crosslinking agent, reaction suppressor, attachment enhancer etc..
The thickness of resin bed 13 is usually 0.1~3 μm, preferably 0.2~2 μm, particularly preferably 0.3~1.5 μm.
4. the physical property of ceramic green sheet manufacturing process stripping film
Stripping film 1A, stripping film are peeled off from the ceramic green sheet shaped in stripping film 1A, stripping film 1B release surface Required peeling force can suitably be set during 1B, but preferably 2.5~50mN/20mm, particularly preferably 5~25mN/20mm.Peel off Peeling agent layer in film 1A, stripping film 1B is by the remover combination shape containing above-mentioned melmac and polysiloxane Into.Therefore, it is possible to be appropriately set at the peeling force such as 2.5~50mN/20mm.
If carrying out shaped ceramic raw cook using stripping film 1A, stripping film 1B, polysiloxane can be suppressed from peeling agent layer 12 to ceramic green sheet transfer.Specifically, will in stripping film 1A, stripping film 1B release surface after shaped ceramic raw cook When the ceramic green sheet is peeled off from stripping film 1A, stripping film 1B, the poly-organosilicon in the face contacted with the release surface in ceramic green sheet The transfer amount of oxygen alkane is reduced.Particularly when carrying out shaped ceramic raw cook using stripping film 1A, stripping film 1B, pair with the ceramic green sheet In release surface contact face be measured obtained from silicon atom ratio be preferably less than 1.0 atom %, it is particularly preferably small In 0.5 atom %, more preferably below 0.3 atom %.In addition, silicon atom ratio can for example be based on passing through x-ray photoelectron The amount (XPS countings) of silicon atom (Si), carbon atom (C) and oxygen atom (O) that spectroscopy (XPS) is determined, is calculated by following formula.
Silicon atom ratio (atom %)=[(Si amount of element)/{ (C element amount)+(O amount of element)+(Si amount of element) }] × 100
In addition, measure can suitably be selected not detecting the ceramics of silicon (that is, not silicon-containing compound) by XPS with ceramic green sheet The silicon atom ratio, can be used as the evaluation criterion of the transfer amount of the polysiloxane of peeling agent layer 12 by raw cook.
5. the manufacture method of ceramic green sheet manufacturing process stripping film
When manufacturing stripping film 1A, coating is containing the remover combination and according to required on a face of base material 11 And after the coating fluid containing organic solvent, solidify remover combination by being dried and heating, so as to form stripping From oxidant layer 12.Thus, it can obtain stripping film 1A.As coating method, for example, gravure coating process, rod coating method, spraying can be used Cloth method, rotation rubbing method, scraper for coating method, roller rubbing method, die coating methods etc..
In addition, when manufacturing stripping film 1B, on a face of base material 11, such as coating, which contains, turns into melmac Raw material melmac coating fluid after, resin bed 13 is formed by being dried and heating.Further, in tree Containing with coating in the one side of the opposite side of base material 11 containing the remover combination and according to required for lipid layer 13 is organic molten After the coating fluid of agent, remover combination is solidified by being dried and heating, so as to form peeling agent layer 12.By This, can obtain stripping film 1B.As their coating method, it can use and above-mentioned coating method identical method.
It is not particularly limited as above-mentioned organic solvent, various solvents can be used.Such as including toluene, hexane, heptane Including hydrocarbon compound can be used isopropanol, isobutanol, acetone, ethyl acetate, methyl ethyl ketone, methyl iso-butyl ketone (MIBK) and they Mixture etc..Particularly preferably using methyl ethyl ketone and the mixed liquor of isopropanol.
The remover combination being coated as described above is preferably thermally cured.In this case heating-up temperature is preferably 90~140 DEG C, particularly preferably 110~130 DEG C.In addition, the heat time is preferably 10~120 seconds or so, particularly preferably 50 ~70 seconds or so.
6. the application method of ceramic green sheet manufacturing process stripping film
Stripping film 1A, stripping film 1B can be used in manufacturing ceramic green sheet.Specifically, applied in the release surface of peeling agent layer 12 Cloth contains after the ceramic slurry of the ceramic materials such as barium titanate or titanium dioxide, by drying the ceramic slurry, so as to Obtain ceramic green sheet.Coating is carried out such as can be used slit die coating method or scraper mode.
As the example of adhesive ingredients contained in ceramic slurry, butyraldehyde resinoid, acrylic compounds tree can be included Fat etc..In addition, as the example of solvent contained in ceramic slurry, organic solvent, water solvent etc. can be included.
In stripping film 1A, stripping film 1B, peeling agent layer 12 passes through by containing the melmac and poly-organosilicon The remover combination of oxygen alkane is formed, so as to play excellent fissility.Further, it is poly- due to being formed in peeling agent layer 12 Organosiloxane is fixed on the structure of melmac, therefore can suppress polysiloxane from peeling agent layer 12 to ceramic green The transfer of piece.Thus, when being laminated the ceramic green sheet shaped using stripping film 1A, stripping film 1B, ceramic green sheet is mutual viscous Make a concerted effort to be improved, can suppress to produce skew between ceramic green sheet.
Embodiments described above is recorded for the ease of understanding the present invention, and is not intended to limit the present invention and remember Carry.Therefore, the objective of each key element disclosed in above-mentioned embodiment is comprising all in the technical scope for belonging to the present invention Design alteration and equivalent.
For example, in base material 11 with the base material 11 and remover in the one side of the opposite side of peeling agent layer 12, stripping film 1A It can also be set between layer 12 or between base material 11 and resin bed 13 in stripping film 1B or between resin bed 13 and peeling agent layer 12 Put other layers such as antistatic layer.
Embodiment
Hereinafter, the present invention is further specifically described by embodiment etc., but the scope of the present invention is not by this The restriction of a little embodiments etc..
[embodiment 1]
By imino-type methylated melamine resins (NIPPON CARBIDE INDUSTRIES CO., INC manufactures, business Article Number:MX-730, weight average molecular weight 1508) 100 mass parts (being scaled the amount of solid constituent, same as below), polyether-modified contain (BYK Japan KK are manufactured hydroxyl dimethyl silicone polymer (b1), article number:BYK-377, number-average molecular weight (Mn) 5078, weight Average molecular weight (Mw) 5993, molecular weight distribution (Mw/Mn) 1.18) 0.5 mass parts and the p-methyl benzenesulfonic acid as acid catalyst (Hitachi Chemical Co., Ltd manufactures, article number:DRYER 900) 4.0 mass parts, in methyl ethyl ketone, isopropanol And the in the mixed solvent of isobutanol is mixed, so as to obtain the coating fluid for the remover combination that solid constituent is 20 mass %.
Resulting coating fluid is equably coated on by the use of Meyer rod #6 poly- to benzene two as the twin shaft extension of base material Formic acid second diester film (thickness:25 μm) maximum height of projection Rp for 452nm face on.Then, the heat drying 1 at 120 DEG C Minute, solidify remover combination, so as to obtain being laminated with the stripping film for the peeling agent layer that thickness is 1.2 μm on base material.
In addition, the thickness of base material and peeling agent layer is using reflective film thickness gauge, (Filmetrics, Inc are manufactured, product Number:F20) it is measured.
[2~embodiment of embodiment 4]
Except by the mass fraction of polyether-modified hydroxyl dimethyl silicone polymer (b1) changed as shown in table 1 with Outside, stripping film is obtained in the same manner as example 1.
[embodiment 5]
Gather except the polyether-modified mass parts of hydroxyl dimethyl silicone polymer (b1) 0.5 are changed into polyester modification hydroxyl (BYK Japan KK are manufactured dimethyl siloxane (b2), article number:BYK-370, number-average molecular weight (Mn) 2689, Weight-average molecular Measure (Mw) 4283, molecular weight distribution (Mw/Mn) 1.59) beyond 1.0 mass parts, stripping film is obtained in the same manner as example 1.
[embodiment 6]
Except by the mass fraction of polyester modification hydroxyl dimethyl silicone polymer (b2) changed as shown in table 1 with Outside, stripping film is obtained in mode same as Example 5.
[comparative example 1]
Except the polyether-modified hydroxyl dimethyl silicone polymer (b1) of 0.5 mass parts is changed into the poly- of 1.0 mass parts (BYK Japan KK are manufactured ether modified dimethyl polysiloxane (b3), article number:BYK-345, number-average molecular weight (Mn) 1194, Weight average molecular weight (Mw) 1563, molecular weight distribution (Mw/Mn) 1.31) beyond, stripping film is obtained in the same manner as example 1.
[comparative example 2]
In addition to the mass fraction of polyether-modified dimethyl silicone polymer (b3) is changed as shown in table 1, with The identical mode of comparative example 1 obtains stripping film.
[test example 1] (measure of total acid number)
In the way of solid component concentration is turned into 50 mass %, using isopropanol in embodiment and comparative example Used melmac.The 10g dilutions are taken into 200mL beakers.Thereto addition 125mL with 500:5:495 The solution of toluene, pure water and 2- propyl alcohol that is mixed of mass ratio, so as to obtain determination sample.In addition, in embodiment and When each commodity of melmac used in comparative example use the solvent in addition to the isopropanol as solvent, make it Dry and after removing solvent, be diluted using isopropanol, it is 50 mass % to make solid component concentration.
To the determination sample, potential difference automatic titration device (KYOTO ELECTRONICS MANUFACTURING are used CO., LTD is manufactured, production number:AT-610EBU-610-20B the titration based on standard potassium hydroxide 2- propanol solutions) is carried out, and Determine the amount of standard potassium hydroxide 2- propanol solutions required when neutralizing.3 measure are carried out, and calculate its average value.From this Mean value calculation goes out to neutralize the amount (mg) of potassium hydroxide required during 1g melmacs, in this, as total acid number (mgKOH/ g).Show the result in table 1.
[test example 2] (measure of peeling force)
To the barium titanate (BaTiO of 100 mass parts3;SAKAI CHEMICAL INDUSTRY CO., LTD manufactures, commodity Number:BT-03), polyvinyl butyral resin (SEKISUI CHEMICAL CO., the LTD manufactures, article number of 10 mass parts:S-LEC BKBM-2) and 5 mass parts dioctyl phthalate (KANTO CHEMICAL CO., INC manufacture, article number:Adjacent benzene 1 grade of diformazan dioctyl phthalate deer) in 69 mass parts of addition toluene and the ethanol of 46 mass parts, and make in ball mill its mixing point Dissipate, so as to make ceramic slurry.
After being manufactured by embodiment and comparative example, at normal temperatures take care of in the stripping film of 48 hours, painting is used Cloth machine is equably coated with above-mentioned ceramic slurry in the release surface of peeling agent layer.Afterwards, 1 point is dried at 80 DEG C using drying machine Clock.Thus, the ceramic green sheet that thickness is 3 μm has been obtained on stripping film.Thus, the stripping film with ceramic green sheet is produced.
The stripping film with ceramic green sheet is stood 24 hours under 23 degree of room temperature, the atmosphere of humidity 50%.Then, exist Acrylic acid adhesive tape (NITTO DENKO CORPORATION systems are attached in the one side of the side opposite with stripping film of ceramic green sheet Make, article number:31B adhesive tapes), cut in this condition with 20mm width.As determination sample.
Flat board is fixed in the adhesive tape side of the determination sample, cupping machine (Shimadzu is used Corporation is manufactured, production number:AG-IS500N), with 180 ° of peel angle, the peeling rate of 100mm/ minutes from ceramics Stripping film is peeled off on raw cook, power (peeling force required when being peeled off is determined;mN/20mm).Show the result in table 1.
[test example 3] (polysiloxane is metastatic to be evaluated)
After being manufactured by embodiment and comparative example, 35 μ are used in the stripping film of 48 hours certainly at normal temperatures M coating machine is equably coated with above-mentioned ceramic slurry in the release surface of peeling agent layer.Afterwards, done using drying machine at 60 DEG C Dry 1 minute.Thus, the ceramic green sheet that thickness is 4 μm has been obtained on stripping film.Thus, the stripping with ceramic green sheet is produced From film.
Above-mentioned ceramic green sheet is peeled off from stripping film, for the face contacted with peeling agent layer surface in the ceramic green sheet, (XPS is counted amount based on the silicon atom (Si), carbon atom (C) and oxygen atom (O) determined by X-ray photoelectron spectroscopy (XPS) Number), silicon atom ratio (atom %) is calculated by following formula.
Silicon atom ratio (atom %)=[(Si amount of element)/{ (C element amount)+(O amount of element)+(Si amount of element) }] × 100
Moreover, according to following criterion, being evaluated polysiloxane metastatic.By silicon atom ratio and comment Valency result is shown in table 1.
A ... silicon atoms ratio is less than 0.3 atom %
B ... silicon atoms ratio be more than 0.3 atom %, less than 0.75 atom %,
C ... silicon atoms ratio is more than 0.75 atom %
In addition, the detailed content of ellipsis described in table 1 etc. is as follows.
[polysiloxane]
b1:(BYK Japan KK are manufactured polyether-modified hydroxyl dimethyl silicone polymer, article number:BYK-377, number is equal Molecular weight (Mn) 5078, weight average molecular weight (Mw) 5993, molecular weight distribution (Mw/Mn) 1.18)
b2:(BYK Japan KK are manufactured polyester modification hydroxyl dimethyl silicone polymer, article number:BYK-370, number is equal Molecular weight (Mn) 2689, weight average molecular weight (Mw) 4283, molecular weight distribution (Mw/Mn) 1.59)
b3:(BYK Japan KK are manufactured polyether-modified dimethyl silicone polymer, article number:BYK-345, number-average molecular weight (Mn) 1194, weight average molecular weight (Mw) 1563, molecular weight distribution (Mw/Mn) 1.31)
It is clear that by table 1,, can be with suitable when being peeled off from ceramic green sheet in embodiment in resulting stripping film When peeling force peeled off.Further, it is known that in the ceramic green sheet shaped using resulting stripping film in embodiment, Silicon atom ratio is smaller, and the transfer of polysiloxane is effectively suppressed.Particularly, it is known that even in remover combination In polysiloxane blended amount increase in the case of, the transfer of polysiloxane is also inhibited.In addition, implementing In stripping film obtained by example, further acknowledge that the maximum height of projection Rp of release surface is relatively low, flatness is also excellent.
On the other hand, it is known that in a comparative example in resulting stripping film, needed when being peeled off from ceramic green sheet stronger Peeling force.In addition, in understanding the ceramic green sheet that is shaped using resulting stripping film in a comparative example, silicon atom ratio compared with Greatly, the transfer of polysiloxane is not suppressed sufficiently.
Industrial applicibility
The ceramic green sheet manufacturing process of the present invention is applied to the shaping of ceramic green sheet with stripping film.
Description of reference numerals
1A, 1B ... ceramic green sheet manufacturing process stripping film
11 ... base materials
12 ... peeling agent layers
13 ... resin beds

Claims (8)

1. a kind of ceramic green sheet manufacturing process stripping film, its unilateral remover for possessing base material and being arranged on the base material Layer, the ceramic green sheet manufacturing process stripping film is characterised by,
The peeling agent layer is formed by remover combination, and the remover combination contains:
There is the polysiloxane of at least one hydroxyl in a molecule;And
Total acid number is 0.030~0.154mgKOH/g melmac.
2. ceramic green sheet manufacturing process according to claim 1 stripping film, it is characterised in that
The polysiloxane in a molecule there is at least one to be selected from one or more of polyester base and polyether-based Organic group.
3. ceramic green sheet manufacturing process according to claim 1 or 2 stripping film, it is characterised in that
At least one in the hydroxyl is present in the end of the polysiloxane.
4. according to ceramic green sheet manufacturing process according to any one of claims 1 to 3 stripping film, it is characterised in that
The weight average molecular weight of the polysiloxane is 1000~300000.
5. according to ceramic green sheet manufacturing process according to any one of claims 1 to 4 stripping film, it is characterised in that
The melmac contains the compound represented by following formulas (a) or contracted by more than two compounds The syncytiam closed,
[chemical formula 1]
In formula, X represents-H ,-CH2- OH or-CH2- O-R, it is optionally each identical or different;R represents the alkane that carbon number is 1~8 Base, it is optionally each identical or different;At least one X is-CH2-OH。
6. according to ceramic green sheet manufacturing process according to any one of claims 1 to 5 stripping film, it is characterised in that
The remover combination further contains acid catalyst.
7. according to ceramic green sheet manufacturing process according to any one of claims 1 to 6 stripping film, it is characterised in that
The thickness of the peeling agent layer is 0.1~3 μm.
8. according to ceramic green sheet manufacturing process according to any one of claims 1 to 7 stripping film, it is characterised in that enter one Step possesses the resin bed between the base material and the peeling agent layer.
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