CN102532850A - Method for making makrolon serial resin film for optics and makrolon serial resin film for optics - Google Patents
Method for making makrolon serial resin film for optics and makrolon serial resin film for optics Download PDFInfo
- Publication number
- CN102532850A CN102532850A CN201110445633XA CN201110445633A CN102532850A CN 102532850 A CN102532850 A CN 102532850A CN 201110445633X A CN201110445633X A CN 201110445633XA CN 201110445633 A CN201110445633 A CN 201110445633A CN 102532850 A CN102532850 A CN 102532850A
- Authority
- CN
- China
- Prior art keywords
- resin film
- polycarbonate resin
- optical polycarbonate
- manufacture
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 63
- 239000011347 resin Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 62
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 43
- 239000004425 Makrolon Substances 0.000 title abstract 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 230000003287 optical effect Effects 0.000 claims description 91
- 229920005668 polycarbonate resin Polymers 0.000 claims description 85
- 239000004431 polycarbonate resin Substances 0.000 claims description 85
- 239000004417 polycarbonate Substances 0.000 claims description 37
- 238000004519 manufacturing process Methods 0.000 claims description 35
- 150000002148 esters Chemical class 0.000 claims description 29
- 238000000926 separation method Methods 0.000 claims description 23
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- 239000011342 resin composition Substances 0.000 claims description 18
- 150000002632 lipids Chemical class 0.000 claims description 17
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- 230000036961 partial effect Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 230000035515 penetration Effects 0.000 claims description 9
- 239000003595 mist Substances 0.000 claims description 7
- 230000017105 transposition Effects 0.000 claims 1
- 239000000155 melt Substances 0.000 abstract description 2
- 239000000805 composite resin Substances 0.000 abstract 2
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
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- 229920006037 cross link polymer Polymers 0.000 description 2
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 description 2
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- CKQVRZJOMJRTOY-UHFFFAOYSA-N octadecanoic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.CCCCCCCCCCCCCCCCCC(O)=O CKQVRZJOMJRTOY-UHFFFAOYSA-N 0.000 description 2
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- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 2
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- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- SKGWNZXOCSYJQL-UHFFFAOYSA-N tripalmitoleoyl-sn-glycerol Natural products CCCCCCC=CCCCCCCCC(=O)OCC(OC(=O)CCCCCCCC=CCCCCCC)COC(=O)CCCCCCCC=CCCCCCC SKGWNZXOCSYJQL-UHFFFAOYSA-N 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Nonlinear Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Materials Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
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Abstract
Provided is a method for making Makrolon serial resin film for optics which is capable of inhibiting fuming amid forming process. The method comprises the step of extruding Makrolon series resin composite in a melt manner and is characterized in that: corresponding to 100 parts of Makrolon series resin by weight, the Makrolon series resin composite comprises less than 0.05 parts of the release agent by weight.
Description
Technical field
The present invention relates to the method for manufacture of optical polycarbonate resin film.And then, the present invention relates to the optical polycarbonate resin film that obtains through this method of manufacture.
Background technology
For the optical films such as protective membrane of light guiding film, phase retardation film, optical diffusion film and polarized light separation sheet, require to have the excellent transparency and thermotolerance etc.The transparency of the film of being processed by polycarbonate-based resin is excellent, and thermotolerance, shock-resistance and rigidity are also excellent, therefore can be used as optical film.
Patent documentation 1:JP2008-274007A
Summary of the invention
But, melt extrude and during shaping membrane, be fuming sometimes at the polycarbonate-based resin composition that contains releasing agent with patent documentation 1 record.
Therefore, problem of the present invention is to provide a kind of method of manufacture of the optical polycarbonate resin film of being fuming when suppressing moulding.In addition, a kind of optical polycarbonate resin film that obtains through this method of manufacture is provided.
The inventor furthers investigate in order to solve above-mentioned problem repeatedly, and the result has found to comprise the solution of following formation.
(1) a kind of method of manufacture of optical polycarbonate resin film; Comprise and melt extrude polycarbonate-based resin composition; It is characterized in that with respect to polycarbonate-based resin 100 weight parts, polycarbonate-based resin composition contains the releasing agent below 0.05 weight part.
(2) according to the method for manufacture of above-mentioned (1) described optical polycarbonate resin film, wherein, releasing agent is the ester of alcohol and lipid acid.
(3) according to the method for manufacture of above-mentioned (2) described optical polycarbonate resin film, wherein, releasing agent is the ester of polyvalent alcohol and lipid acid.
(4) according to the method for manufacture of above-mentioned (3) described optical polycarbonate resin film, wherein, releasing agent is the partial ester of polyvalent alcohol and lipid acid.
(5) according to the method for manufacture of each described optical polycarbonate resin film in above-mentioned (1)～(4), wherein, the thickness of optical polycarbonate resin film is 30～300nm, and total light penetration is more than 85%.
(6) according to the method for manufacture of each described optical polycarbonate resin film in above-mentioned (1)～(5), wherein, the mist degree of optical polycarbonate resin film is more than 50%.
(7) according to the method for manufacture of each described optical polycarbonate resin film in above-mentioned (1)～(6), wherein, the surface gloss of optical polycarbonate resin film is below 50%.
(8) according to the method for manufacture of each described optical polycarbonate resin film in above-mentioned (1)～(7), wherein, be under the situation of 590nm in the incident light wavelength, the delay of optical polycarbonate resin film is below the 30nm.
(9) according to the method for manufacture of each described optical polycarbonate resin film in above-mentioned (1)～(8), wherein, the one side at least of optical polycarbonate resin film is delustring face.
(10) according to the method for manufacture of above-mentioned (9) described optical polycarbonate resin film, it comprises the frosted roll formation delustring face that uses.
(11) a kind of optical polycarbonate resin film, it obtains through each described method of manufacture in above-mentioned (1)～(10).
(12) according to above-mentioned (11) described optical polycarbonate resin film, it is used for liquid crystal indicator.
(13) according to above-mentioned (12) described optical polycarbonate resin film, it is used for protecting the polarized light separation sheet of above-mentioned liquid crystal indicator.
According to the present invention, the method for manufacture of optical polycarbonate resin film can be provided, said method of manufacture can suppress (perhaps reducing) and be fuming when shaping membrane.In addition, the optical polycarbonate resin film that obtains through this method of manufacture can be provided.
Description of drawings
Fig. 1 is the explanation synoptic diagram of an example of the ME of optical polycarbonate resin film of the present invention.
Fig. 2 is for using the explanation synoptic diagram of optical polycarbonate resin film of the present invention as an example of the protective membrane of the polarized light separation sheet of liquid crystal indicator.
Fig. 3 is the synoptic diagram of position of attraction probe (attracting プ ロ one Block) that is provided for measuring the number of the thing that evapotranspires that produces from the outlet of die head 3.
Nomenclature
1 melt extrudes machine
2 macromolecular filtering devices
3 die heads
4 the 1st cooling rollers
5 the 2nd cooling rollers
6 the 3rd cooling rollers
7 optical polycarbonate resin films
8 back light units
9 polarized light separation sheets
10 polarized light separation sheet protective membranes
11 liquid crystal panels
Embodiment
Below, the present invention is at length described.The method of manufacture of optical polycarbonate resin film of the present invention comprises and melt extrudes the polycarbonate-based resin composition that contains the releasing agent below the specified amount.Thus, can suppress to be fuming, to make the optical polycarbonate resin film.
< polycarbonate-based resin composition >
Polycarbonate-based resin composition contains polycarbonate-based resin, contains the releasing agent (also not containing releasing agent sometimes) below the specified amount.
Polycarbonate-based resin is if be considered to the resin of polycarbonate-based resin usually; And for making the resin of goal tree adipose membrane of the present invention; Just not special restriction, for example, can preferably use the aromatic copolycarbonate of excellences such as thermotolerance, physical strength and the transparency is resin.
Aromatic copolycarbonate is that resin generally includes: make resin that the reaction of dihydric phenol and carbonate precursor obtains, make resin that the polymerization of carbonic ether prepolymer obtains and through the ring-opening polymerization method of cyclic carbonate compound and the resin that polymerization obtains etc. through the solid phase ester-interchange method through interface polycondensation or melt transesterification process.
As long as above-mentioned dihydric phenol is usually for to be considered to the compound of dihydric phenol, and for to be used to make dihydric phenol polycarbonate-based resin, that can make goal tree adipose membrane of the present invention, just has no particular limits, for example can illustration: quinhydrones, Resorcinol, 4; 4 '-dihydroxybiphenyl, two (4-hydroxy phenyl) methane, two { (4-hydroxyl-3,5-dimethyl-) phenyl } methane, 1, two (4-hydroxy phenyl) ethane, 1 of 1-, two (4-the hydroxy phenyl)-1-diphenylphosphino ethanes, 2 of 1-; Two (4-hydroxy phenyl) propane (being commonly called as dihydroxyphenyl propane), 2 of 2-, two { (4-hydroxy-3-methyl) phenyl } propane, 2 of 2-, two { (4-hydroxyl-3, the 5-dimethyl-) phenyl } propane, 2 of 2-; Two { (4-hydroxyl-3, the 5-dibromo) phenyl } propane, 2 of 2-, two { (3-sec.-propyl-4-hydroxyl) phenyl } propane, 2 of 2-, two { (4-hydroxyl-3-phenyl) phenyl } propane, 2 of 2-; Two (4-hydroxy phenyl) butane, 2 of 2-, two (4-the hydroxy phenyl)-3-methylbutanes, 2 of 2-, two (the 4-hydroxy phenyls)-3 of 2-, 3-dimethylbutane, 2; Two (4-the hydroxy phenyl)-2-methylbutanes, 2 of 4-, two (4-hydroxy phenyl) pentanes, 2 of 2-, two (4-the hydroxy phenyl)-4-methylpentanes, 1 of 2-; 1-bis(4-hydroxyphenyl) cyclohexane, 1, two (4-the hydroxy phenyl)-4-normenthanes, 1 of 1-, two (the 4-hydroxy phenyls)-3 of 1-; 3,5-trimethyl-cyclohexane, 9, two (4-hydroxy phenyl) fluorenes, 9 of 9-; Two { (4-hydroxy-3-methyl) phenyl } fluorenes of 9-, α, α '-two (4-hydroxy phenyl)-adjacent diisopropyl benzene, α, α '-two (4-hydroxy phenyl)-diisopropyl benzene, α; α '-two (4-hydroxy phenyl)-to diisopropyl benzene, 1, two (the 4-hydroxy phenyls)-5 of 3-, 7-dimethyladamantane, 4; 4 '-dihydroxy diphenylsulphone, 4,4 '-dihydroxyl thionyl benzene, 4,4 '-dihydroxyl diphenyl sulfide, 4; 4 '-dihydroxy benzophenone, 4,4 '-dihydroxy diphenyl ether and 4,4 '-dihydroxyl diphenyl ester etc.Dihydric phenol can separately or make up two or more uses.
Wherein, preferably will be selected from dihydroxyphenyl propane, 2, two { (4-hydroxy-3-methyl) phenyl } propane, 2 of 2-, two (4-hydroxy phenyl) butane, 2 of 2-; Two (4-the hydroxy phenyl)-3-methylbutanes, 2 of 2-, two (the 4-hydroxy phenyls)-3 of 2-, 3-dimethylbutane, 2; Two (4-the hydroxy phenyl)-4-methylpentanes, 1 of 2-, two (the 4-hydroxy phenyls)-3,3 of 1-; 5-trimethyl-cyclohexane and α, the two or more alone or in combination uses of dihydric phenol in α '-two (4-the hydroxy phenyl)-diisopropyl benzene, the preferred especially dihydroxyphenyl propane that uses separately; Or especially preferably will be selected from by dihydroxyphenyl propane, 2 two { (4-hydroxy-3-methyl) phenyl } propane and the α of 2-, more than one dihydric phenols and 1 in α '-two (4-the hydroxy phenyl)-diisopropyl benzene; Two (the 4-hydroxy phenyls)-3,3 of 1-, the combination of 5-trimethyl-cyclohexane is used.
As long as above-mentioned carbonate precursor is usually for being considered to the compound of carbonate precursor; And for can be used for making carbonate precursor polycarbonate-based resin, that can make goal tree adipose membrane of the present invention; Just not special restriction, can illustration for example: carbonyl halide, carbonic ether and haloformate etc.More specifically, as carbonate precursor, can illustration for example: two haloformates of phosgene, diphenyl carbonate and dihydric phenol etc.
The melt volume-flow rate (MVR) of polycarbonate-based resin under 300 ℃, 1.2kg load is preferably 11～35cm
3/ 10min, more preferably 12～30cm
3/ 10min further is preferably 12～25cm
3/ 10min.If MVR in specialized range, can improve the outward appearance of optical polycarbonate resin film.Need to prove that MVR measures according to ISO1133.
The viscosity-average molecular weight of polycarbonate-based resin is preferably 17000～21500, and more preferably 18000～21000, further be preferably 19000～21000.If viscosity-average molecular weight in specialized range, can be improved the outward appearance of optical polycarbonate resin film.Need to prove, be described below and obtain viscosity-average molecular weight.Preparation is the solution of polycarbonate-based resin of 0.5 weight % of solvent with the methylene dichloride.Use Kan Nongfensike type viscosity tube, at 20 ℃ of specific viscosity η that measure its solution down of temperature
SpAfterwards,, try to achieve limiting viscosity η, calculate with the formula (I) of following SCHNELL through concentration conversion.
η＝1.23×10
-4M
0.83 (I)
Releasing agent as long as for being considered to the additive of releasing agent, can be used for making polycarbonate-based resin, can be made the releasing agent of goal tree adipose membrane of the present invention usually, just not special restriction.Releasing agent is general so long as when melt extruding moulding, can improve the affinity of resin and cooling roller and improve the roller surface transfer or resin is got final product from the easy demoulding of cooling roller.As releasing agent, can illustration for example: the ester of alcohol, lipid acid, alcohol and lipid acid, wax etc.The ester of alcohols and lipid acid, the more preferably partial ester of the ester of monohydroxy-alcohol and lipid acid and polyvalent alcohol and lipid acid or full ester, the further partial ester of preferred polyol and lipid acid.Alcohol can use or make up two or more the use separately with the ester of lipid acid, also can with partial ester and full ester and with and use.Need to prove that partial ester is meant that a part of hydroxyl of polyvalent alcohol does not have to form ester bond and the residual compound of former state with the carboxyl of lipid acid, full ester is meant that the whole hydroxyls of polyvalent alcohol and the carboxyl of lipid acid form ester bond and do not have the residual compound of former state.Preferred fatty acid is a sfas.
As the ester of monohydroxy-alcohol and sfas, can illustration for example: stearyl stearate, palmitinic acid palm ester, butyl stearate and Laurate methyl etc.
As the partial ester of polyvalent alcohol and sfas or full ester, can illustration for example: the full ester of Dipentaerythritols such as glycerine monopalmitate, dipalmitin, TRIPALMITOLEIN, Zerol, Stearic diglyceride, tristearin, ス テ ア リ Application acid モ ノ ソ Le PVC テ one ト, glycerine list docosane acid esters, pentaerythritol monostearate, pentaerythritol stearic acid ester 2, pentaerythritol tetrastearate, tetramethylolmethane four pelargonic esternonates, propylene glycol monostearate, biphenyl biphenyl phenolic ester (PVC Off エ ニ Le PVC Off エ ネ one ト), Arlacel-60, Triple Pressed Stearic Acid 2-ethylhexyl and Dipentaerythritol six stearates or partial ester etc.
The ester of alcohol and lipid acid is partial esters such as glycerine monopalmitate, dipalmitin, Zerol, Stearic diglyceride, ス テ ア リ Application acid モ ノ ソ Le PVC テ one ト, glycerine list docosane acid esters, pentaerythritol monostearate, pentaerythritol stearic acid ester 2, propylene glycol monostearate, sorbitan monostearate more preferably; Be preferably partial esters such as glycerine monopalmitate, Zerol, Arlacel-60, pentaerythritol monostearate, pentaerythritol stearic acid ester 2 especially, most preferably glycerine monopalmitate and Zerol.Releasing agent can use or make up two or more the use separately.
The content of the releasing agent in the polycarbonate-based resin composition with respect to polycarbonate-based resin 100 weight parts, is below 0.05 weight part, is preferably below 0.04 weight part, more preferably below 0.02 weight part, is preferably especially below 0.008 weight part.Under the situation of the content of releasing agent more than 0.05 weight part, when melt extruding moulding, increase from being fuming of die head exit.Its reason is thought and is described below.
Be to produce thinking is fuming, not equal to be that releasing agent in the resin combination is through being that the form of the particle (below be called the thing that evapotranspires) more than the 0.5 μ m is evapotranspired and produced with particle diameter by the resin the polycarbonate-based resin composition that melt extrudes from die head exit.Because from after the embodiment that states can know that the content of the releasing agent in the polycarbonate-based resin composition is many more, the generation of the thing that evapotranspires increases, it is many more to be fuming.Thereby, the thing that evapotranspires is arranged attached on the cover that is arranged at die head top and condense, then, such condensation prod forms drop and is dropped on cooling roller or the film, or the releasing agent that evapotranspires is attached directly to the possibility on cooling roller or the film.
The content of releasing agent is below 0.05 weight part with respect to polycarbonate-based resin 100 weight parts, also can be 0 weight part.
Need to prove; In polycarbonate-based resin composition; Also can cooperate other composition as required, for example: light diffusing agent, UV light absorber, organic system dyestuff, inorganic based dye, pigment, inhibitor, static inhibitor and tensio-active agent etc.
< optical polycarbonate resin film >
Optical polycarbonate resin film of the present invention preferably at least simultaneously is delustring face (perhaps having carried out the face that delustring is handled).
The thickness of optical polycarbonate resin film is preferably 30～300 μ m, and more preferably 40～270 μ m further are preferably 50～250 μ m.When the thickness of optical polycarbonate resin film is too thin, this film self rigidity is reduced, the surface of this film is easy to generate gauffer.For example, such film is fitted under the situation on the polarized light separation sheet, can making the rigidity of the polarized light separation sheet after the applying not enough, when such polarized light separation sheet is used for liquid crystal indicator, may be easy to generate and rises and falls or bending etc.On the other hand; When the thickness of optical polycarbonate resin film is too thick, the manufacturing cost of this film is uprised, under the situation of this film of fitting on the polarized light separation sheet; The thickness of the polarized light separation sheet after the applying is thickened, and the result can make the thickness of liquid crystal panel thicken.
The optical polycarbonate resin film is more than 85% according to total light penetration that JIS K7361-1 measures preferably.When total light penetration of this film was too low, the light quantity that is penetrated by film reduced with respect to the ratio of the light quantity that incides film, and the utilising efficiency of light is reduced.
The mist degree of optical polycarbonate resin film is preferably more than 50%, more preferably more than 55%, further is preferably more than 60%.When mist degree is too low, possibly can not manifest sufficient light diffusion effect.
60 degree mirror surface lusters of the one side at least of optical polycarbonate resin film are preferably below 50%, more preferably below 45%, further are preferably below 35%.60 degree mirror surface lusters are when too big, for example under optical film and situation that liquid crystal panel contacts, understand because of interference fringe producing the rainbow pattern.
Length of delay in the face of optical polycarbonate resin film under the situation of the incident light of wavelength 590nm, is preferably below the 30nm, more preferably below the 20nm.
For example, optical polycarbonate resin film of the present invention is used under the situation of liquid crystal indicator, the light that is used for liquid-crystal display is polarized light, therefore, requires the little film of optical strain, is preferably the length of delay below the 30nm.Especially use optical polycarbonate resin film of the present invention to protect as liquid crystal indicator being used to of using under the situation of polarized light separation sheet protective membrane of polarized light separation sheet; Owing to after the reason stated; In order not upset as far as possible from the polarization direction of the polarized light of polarized light separation sheet ejaculation; Preferred length of delay is low, and more preferably length of delay is below the 20nm.
Liquid crystal indicator is as shown in Figure 2, and back light unit 8 is provided with liquid crystal panel 11, so that the light that penetrates from back light unit 8 incides the mode of liquid crystal panel 11 and constitutes.Polarized light separation sheet 9 is configured between back light unit 8 and the liquid crystal panel 11 usually.Polarized light separation sheet 9 will be separated into mutually perpendicular two kinds of polarized light (polarising light has taken place) from the non-polarized light (unpolarized light) that back light unit 8 penetrates; Optionally only see through a kind of polarized light; Ejaculation is in liquid crystal panel 11 sides, and another kind of polarized light is back to back light unit 8 sides.The polarized light that returns is incident to once more on the polarized light separation sheet 9 and utilizes after the back light unit internal reflection, therefore, utilizes polarized light separation sheet 9 can improve the utilising efficiency of light.Thereby; For in order to protect polarized light separation sheet 9 in the two sides of this sheet 9 or one side laminated or fit and for the polarized light separation sheet protective membrane 10 that uses; In order not upset as far as possible from the polarization direction of the polarized light of this sheet 9 ejaculations; Preferred length of delay is low, more preferably the length of delay below the 20nrn.
< manufacturing process of optical polycarbonate resin film >
Optical polycarbonate resin film of the present invention is preferably by above-mentioned polycarbonate-based resin composition manufacturing, and one side is delustring face at least.
As the method for manufacture of optical polycarbonate resin film, can illustration melt extrude the method for above-mentioned polycarbonate-based resin composition and this resin combination carried out method of solution film-forming etc.Wherein, the outlet generation from die head when the method that melt extrudes can suppress moulding optical polycarbonate resin film is fuming, and is therefore preferred.
As the formation method of delustring face, can illustration: when melt extruding the moulding resin film, use the metallic roll (so-called frosted roll) that is formed with concaveconvex shape on the periphery, the concavo-convex method of transfer printing metallic roll; Use has cooperated the polycarbonate-based resin as the transparent particulate of matting agent to melt extrude moulding, makes the surface of resin molding form concavo-convex method etc.
The optical polycarbonate resin film mainly contains polycarbonate-based resin and gets final product; Also can mix other resin; In addition, can be two kinds of two-layer multilayer films that obtain through multilayered molten extrusion moulding with other resin, also can be two kinds of trilaminar multilayer films.Under the situation of multilayer film, can additives such as light diffusing agent, UV light absorber, organic system dyestuff, inorganic based dye, pigment, inhibitor, static inhibitor and tensio-active agent only be engaged in the arbitrary layer, also can be engaged in two-layer above in.
<using roller to form the method for delustring face >
The method of using so-called frosted roll to form delustring face is; When melt extruding the moulding resin film; Use the metallic roll that is formed with concaveconvex shape on the periphery; With the method for concaveconvex shape transfer printing on resin molding, can illustration for example: the method for putting down in writing among JP2009-196327A, the JP2009-202382A etc.
Fig. 1 is the explanation synoptic diagram of an example of the ME (below, be called ME of the present invention) of expression optical polycarbonate resin film of the present invention.
As shown in the drawing, this ME is, prepares to melt extrude machine 1, and melting mixing drops into the polycarbonate-based resin composition of forcing machine, and after macromolecular filtering device 2, via die head 3 (T die head), resin is spread out, extrudes with membranaceous from die head exit.
For die head 3, so long as can obtain the die head of goal tree adipose membrane of the present invention, just not special restriction can be used the T die usually.With regard to die head 3; The optical polycarbonate resin film is under the situation of unitary film; Preferably extruding a kind of single layer die of resin with individual layer, is under the situation of two kinds of two-layer multilayer films or two kinds of trilaminar multilayer films etc., preferably will distinguish independently from the two or more laminated resin of forcing machine force feed and the multilayer die head of coextrusion; As the multilayer die head, preferred feedstock piece die head (feed block die) or many material road die heads (multi manifold die).
Then, the resin clip that will extrude from die head 3 is between the 1st cooling roller 4 that disposes in opposite directions along general horizontal direction and the 2nd cooling roller 5.Preferred at least one surface forms delustring face, utilizes the 3rd cooling roller 6 to cool off lentamente, can obtain optical polycarbonate resin film 7.
For the 1st cooling roller 4, as long as can obtain goal tree adipose membrane of the present invention, just not special the qualification can be used the common metallic roll used in the present extrusion moulding etc.Rubber rollers or metallic elastic roller about general preferred diameter 25～100cm.Through the 1st cooling roller 4 is set at rubber rollers or metallic elastic roller, can so that to the length of delay of optical polycarbonate resin film be below the 30nm.
As above-mentioned rubber rollers, can illustration for example silica gel roller and viton roller etc., in order to improve release property, also can adopt the roller that is mixed with sand.The hardness of rubber rollers is preferably in A60 ° of measuring according to JIS K6253～A90 ° the scope.For the hardness that makes rubber rollers is in the above-mentioned scope, for example can carry out arbitrarily through degree of crosslinking or the composition of regulating the rubber that constitutes rubber rollers.
The inside of the general roller of above-mentioned metallic elastic roller is made up of rubber or fluid, and its peripheral part is made up of the metal made membrane with toughness.More specifically, can illustration: it be that columnar stainless steel made membrane about 0.2～1mm covers the roller that the peripheral part of this roller forms that the inside of roller constitutes, uses thickness by silica gel roller; Thickness is that the reel like film of the stainless steel about 2～5mm is fixed on roll end, encloses water or wet goods fluidic roller etc. in inside.
The 1st cooling roller 4 preferred uses like this are made up of metallic substance or elastomerics, are processed into the cooling roller of mirror-like through gold-plated grade.Need to prove that the metal made membrane of metallic elastic roller or the surface of rubber rollers may not be level and smooth, also can with after the 2nd cooling roller 5 the same concaveconvex shapes that are provided with from the teeth outwards stated.
The 2nd cooling roller 5 is not special to be limited, and can adopt the plain metal roller that in extrusion moulding, uses at present, the metallic roll about general preferred diameter 25～100cm.
In order on resin molding, to form delustring face, preferably on the periphery of such metallic roll, form concaveconvex shape.More specifically, can illustration: cut out the metallic roll of the inner temperature that feeds fluid, steam etc. and can the control roller surface such as the roller of the boring pressure roller (drilled roll) of metal block, the propellers (spiral roll) of hollow structure etc. etc.Can use the roller that forms the target concaveconvex shape at the periphery of these metallic roll through sandblast or engraving etc.
As the concaveconvex shape that on the periphery of the 2nd cooling roller 5, forms, can illustration: count pulvilliform (マ Star ト shape) about 0.1～10 μ m etc., have the concaveconvex shape of specific spacing, height etc. with arithmetic average roughness (Ra).Above-mentioned arithmetic average roughness (Ra) is to measure with the surfaceness meter and the value that obtains according to JIS B0601-2001.
Need to prove, form under the situation of delustring layer, as long as between the cooling roller that forms above-mentioned concaveconvex shape on the periphery, insert this resin on two surfaces that make film.
After optical polycarbonate resin film that can the transfer printing concaveconvex shape is wound on the 2nd cooling roller 5, utilizes the take off roll traction and batch.At this moment, can after the 2nd cooling roller 5, the 3rd cooling roller 6 be set.Thus, the optical polycarbonate resin film can cool off lentamente, therefore; Can reduce the optical strain of this film; And then can guarantee stably also and the duration of contact of the 2nd cooling roller 5 that therefore, transfer printing stably can be formed at the concaveconvex shape on the 2nd cooling roller 5.
As long as the 3rd cooling roller 6 can obtain goal tree adipose membrane of the present invention, just not special the qualification can be adopted the present plain metal roller that in extrusion moulding, uses etc.As concrete example, can enumerate boring pressure roller, propellers etc.The condition of surface of the 3rd cooling roller 6 is preferably minute surface.
Make the resin molding that is wound on the 2nd cooling roller 5 through between the 2nd cooling roller 5 and the 3rd cooling roller 6, and be wound on the 3rd cooling roller 6.Can predetermined gap be set between the 2nd cooling roller 5 and the 3rd cooling roller 6 and be the liberation state, also can insert two rollers.Need to prove; In order to cool off resin molding more lentamente; Also can after the 3rd cooling roller 6, the 4th cooling roller, the 5th cooling roller be set ... a plurality of cooling rollers are wound on the resin molding (being preferably matt film) that on the 3rd cooling roller 6 on the next cooling roller successively.
<using the formation method of the delustring face of matting agent >
In addition,, can use the resin that is combined with as the transparent particulate of matting agent, in melt extruding moulding, form concavo-convex on the surface as other formation method of delustring face.Particularly under the situation of using matting agent, preferably use in the multilayered molten extrusion moulding through only in the resin that forms the top layer, cooperating particle to make the surface form concavo-convex method as matting agent.Usually,, need to add a certain amount of above matting agent, consider, generally use and in the multilayered molten extrusion moulding, only make the method that contains matting agent in the resin that forms the top layer from the angle of cost obtaining under the situation of concave-convex surface through adding matting agent.As the multilayer extruding forming method of this moment, can the for example aforesaid JP2009-196327A of illustration and JP2009-202382A in the method put down in writing.Under this situation, owing to utilize the effect of matting agent to form the concavo-convex of surface, therefore, it is the metallic roll of minute surface that the 2nd cooling roller 5 also can adopt common condition of surface.
In addition, the matting agent that uses this moment uses the so-called particle that is known as light diffusing agent usually.As light diffusing agent, can illustration for example: organic system particles such as TEB 3K based polymer particles, styrenic particle and siloxane-based polymers particle; Lime carbonate, permanent white, titanium oxide, white lake, silica (silicon oxide), unorganic glass, talcum, mica, WHITE CARBON BLACK, Natural manganese dioxide and zinc oxide etc. are inorganic to be particle etc.Need to prove, for inorganic be particle, also can carry out surface treatment so that it is evenly dispersed in the thermoplastic resin with surface treatment agents such as lipid acid.
Optical polycarbonate resin film of the present invention requires to have high total light penetration mostly as optical characteristics, therefore, as matting agent, can preferably use the good particle of the transparency.In addition; From the matting agent of the degree of adding the concave-convex sense to guarantee the surface and keep the viewpoint of high total light penetration to consider; The particle that the difference of the specific refractory power of preferred substrates resin and the specific refractory power of matting agent is not too big, generally, the difference of preferred index is in about 0.1.In the multilayered molten extrusion moulding, the not too big particle of difference of the specific refractory power of the resin on preferred selection and formation top layer.Need to prove that the matting agent of use can use or make up two or more the use separately.
The TEB 3K based polymer particles of using as above-mentioned matting agent is for the polymer particle of TEB 3K as main body, and this polymkeric substance is preferably the cross-linked polymer that polyfunctional monomer copolymerization that the monofunctional monomer, the intramolecularly that make TEB 3K, the intramolecularly beyond it have a polymerisable double bonds have two above polymerisable double bonds forms.
Example as the monofunctional monomer beyond the TEB 3K in the above-mentioned TEB 3K based polymer particles; Can the illustration preamble as TEB 3K be (methyl) propenoate beyond the TEB 3K enumerated of the monomeric example of resin, styrenic monomers, and polymerisable monofunctional monomer beyond (methyl) propenoate and the styrenic monomers, preferably use vinylbenzene.
As the polyfunctional monomer in the above-mentioned TEB 3K based polymer particles; Can illustration for example: 1, the methyl acrylic ester of polyvalent alcohols such as 4-butylene glycol dimethacrylate, TD 1523, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, propylidene ethylidene glycol dimethacrylate (プ ロ ピ レ Application エ チ レ Application グ リ コ one Le ジ メ タ Network リ レ one ト), four propylidene ethylidene glycol dimethacrylates (テ ト ラ プ ロ ピ レ Application エ チ レ Application グ リ コ one Le ジ メ タ Network リ レ one ト), trimethylolpropane trimethacrylate, tetramethylolmethane tetramethyl-propenoate; The esters of acrylic acid of polyvalent alcohols such as 1,4 butanediol diacrylate, neopentylglycol diacrylate, glycol diacrylate, diethylene glycol diacrylate, Viscoat 335HP, propylidene ethylidene glycol diacrylate (プ ロ ピ レ Application エ チ レ Application グ リ コ one Le ジ ア Network リ レ one ト), four propylidene ethylidene glycol diacrylates (テ ト ラ プ ロ ピ レ Application エ チ レ Application グ リ コ one Le ジ ア Network リ レ one ト), Viscoat 295, tetramethylol methane tetraacrylate; Aromatic series such as Vinylstyrene, Phthalic acid, diallyl ester polyfunctional compound etc.Such polyfunctional monomer can be distinguished independent use or make up two or more the use.
The specific refractory power of such TEB 3K based polymer particles is generally about 1.46～1.55, has the content of benzene skeleton or halogen atom to demonstrate the trend of big more specific refractory power more.For this TEB 3K based polymer particles for example, can use methods such as suspension polymerization, microsuspension method, emulsion polymerization and dispersion copolymerization method and make,
The styrenic particle that uses as above-mentioned matting agent is for the polymer particle of vinylbenzene as main body, and this polymkeric substance is preferably that the monofunctional monomer, the intramolecularly that make vinylbenzene, the intramolecularly beyond it have a polymerisable double bonds have the polyfunctional monomer copolymerization of two above polymerisable double bonds and the cross-linked polymer that obtains.
As the monofunctional monomer beyond the vinylbenzene in the above-mentioned styrenic particle; For example; Except that TEB 3K; Equally can the illustration preamble as TEB 3K be the monomeric example of resin and (methyl) propenoate beyond the TEB 3K enumerated, styrenic monomers, and polymerisable monofunctional monomer beyond (methyl) propenoate and the styrenic monomers, preferably use TEB 3K.
As the polyfunctional monomer in the above-mentioned styrenic particle; For example; The polymerisable polyfunctional monomer of equally can the illustration preamble enumerating as the example of the polyfunctional monomer of TEB 3K based polymer particles can be distinguished independent use or make up two or more the use.
The specific refractory power of such styrenic particle is generally about 1.53～1.61, and the content trend that show big more specific refractory power of benzene skeleton or halogen atom are arranged more.This styrenic particle for example can use methods such as suspension polymerization, microsuspension method, emulsion polymerization and dispersion copolymerization method and make.
The ratio of the polyfunctional monomer that uses in TEB 3K based polymer particles of using as above-mentioned matting agent and the styrenic particle is a benchmark with all monomers, is generally about 0.05～15 quality %, is preferably 0.1～10 quality %.The amount of polyfunctional monomer is very little the time, and the crosslinking degree of particle is insufficient, in extrusion moulding, applies under the situation of heat or shearing, and particle is significantly distortion easily, and the result is difficult to the light diffusion effect that obtains wanting.In addition, when multi-functional monomeric amount is too many, be easy to generate bad order during extrusion moulding.
The polymer particle of siloxane-based polymers particle as above-mentioned matting agent use for making through the method that makes the for example hydrolysis of chlorosilane class, condensation.
As the chlorosilane class, can illustration for example: dimethyldichlorosilane(DMCS), diphenyl dichlorosilane, phenylmethyldichloroislane, METHYL TRICHLORO SILANE and phenyl-trichloro-silicane etc.Siloxane-based polymers can carry out crosslinked.In order to make it crosslinked; For example, can make Lucidol, peroxo-2,4 dichloro benzene formyl, chloro benzoyl peroxide, dicumyl peroxide, di-t-butyl peroxide-2; 5-dimethyl--2, peroxidations such as 5-(t-butylperoxy) hexane are in siloxane-based polymers.In addition, have under the situation of terminal silanol group, also can carry out condensation cross-linking with the alkoxyl silicone alkanes.The crosslinked polymkeric substance that forms is preferably the structure that each silicon atom bonding has 2～3 organic residues in the left and right sides.
Such siloxane-based polymers preferably use the polymkeric substance that is also referred to as Zylox, silicone resin, be the solid siloxane-based polymers at normal temperatures.The siloxane polymer particle can obtain through pulverizing such siloxane polymer.Also can make granular particle under atomize through curable polymer with wire organo-siloxane block or its compsn are solidified.In addition, also can be through making the condensation that in the aqueous solution of ammonia or amine, is hydrolyzed of alkyltrialkoxysilaneand or its partly hydrolysed condenses, obtain with the form of granular particle.
The specific refractory power of such siloxane-based polymers particle is generally about 1.40～1.47.
The weight average particle diameter of the particle that uses as matting agent; Get final product according to the concave-convex surface shape of wanting is suitably selected; But in order to have the concave-convex surface shape of wanting, and have excellent optical, be preferably 0.5～50 μ m; More preferably 1～40 μ m further is preferably 2～30 μ m.In addition, it is spherical that particle is generally, but also can use the particle of rectangle, flakey, needle-like, shape such as tabular.
The cooperation ratio of the particle that is used as matting agent in the top layer during for the multilayer extrusion moulding, the total amount 100 weight % with respect to resin and particle are preferably below the 35 weight %, more preferably below the 30 weight %.The cooperation ratio of particle may make the resin that is combined with particle be difficult to melt extrude moulding during greater than 35 weight %.
Optical polycarbonate resin film of the present invention; Start from diffusion, angle effect, prevent to use with other parts adhesion and through contacting various purposes such as waiting the protective membrane surface with other parts; For example; In liquid crystal indicator, can be used to insert protective membrane, reflectance coating and the light guiding film etc. of optical diffusion film, polaroid protective film, phase retardation film, brightness enhancement film of back light unit etc., polarized light separation sheet.In addition, also can be applied to CD or illumination with film etc., the present invention is not limited to these purposes.Especially can be preferably used as the protective membrane of the polarized light separation sheet in the liquid crystal indicator.
Embodiment
Below, embodiments of the invention are shown, but the present invention does not receive the qualification of these embodiment.Need to prove, among the embodiment below, short of special record, part of expression content and consumption is a weight part.
Being constructed as follows of the extrusion device that uses in following embodiment and the comparative example is said.
Melt extrude machine 1: the screw diameter of band venting port is the single screw extrusion machine (toshiba machine (strain) system) of 115mm
Macromolecular filtering device 2: the filter pore size is 10 μ m
Die head 3:T die (single layer die)
Configuration as shown in Figure 1 melt extrudes machine 1, macromolecular filtering device 2, die head the 3, the 1st～the 3rd cooling roller 4～6, constitutes the 1st～the 3rd cooling roller 4～6 as follows.
< roller formation >
Following formation the 1st cooling roller the 4, the 2nd cooling roller 5 and the 3rd cooling roller 6.
The 1st cooling roller 4: external diameter is A70 ° a silica gel roller for
hardness
The 2nd cooling roller 5: external diameter has formed the metallic roll (boring pressure roller) of stainless steel that arithmetic average roughness (Ra) is the concaveconvex shape of 3.5 μ m for
through sandblasting
The 3rd cooling roller 6: the metallic roll (boring pressure roller) of the stainless steel that external diameter is
mirror finish
The polycarbonate-based resin and the releasing agent that use in following embodiment and the comparative example are described below.
As polycarbonate-based resin, use the MVR under 300 ℃, 1.2kg load to be 14cm
3/ 10min, viscosity-average molecular weight are " カ リ バ one 301-15 " (trade(brand)name) of 20200 Sumitomo ダ ウ (strain) system.
As releasing agent, use glycerine monopalmitate and Zerol.
(embodiment 1～4, comparative example 1)
Preparation contains the embodiment 1～4 of polycarbonate-based resin and releasing agent and the polycarbonate-based resin composition of comparative example 1 with the ratio shown in the table 1.Single screw rod that each polycarbonate-based resin composition is supplied with
is melt extruded machine 1; The filter pore size that makes its front through being arranged on die head 3 is after the macromolecular filtering device 2 of 10 μ m, extrudes membranaceous resin from die head 3 (die head temperature: 255 ℃) with the discharge-amount of 300kg/hr.The membranaceous resin of extruding is sandwiched between the 1st cooling roller 4 (design temperature: 34 ℃) and the 2nd cooling roller 5 (design temperature: 130 ℃); Be wound on the 2nd cooling roller 5; Then; Between the 2nd cooling roller 5 and the 3rd cooling roller 6 (design temperature: 135 ℃), and then be wound on the 3rd cooling roller, it is the optical polycarbonate resin film 7 of 130 μ m that the transfer printing of continuously shaped 24 hours one sides has the thickness of the concaveconvex shape of the 2nd cooling roller.The release property from the 2nd cooling roller of each optical polycarbonate resin film 7 of embodiment 1～4 and comparative example 1 is all good.Need to prove that the thickness of film uses micrometrie scale, and (the Mitutoyo corporate system MDC-25MJ) is measured.
Table 1
* 1: total amount=glycerine monopalmitate content+Zerol content
Each optical polycarbonate resin film (embodiment 1～4 and comparative example 1) to obtaining after continuously shaped 24 hours carries out following evaluation.The result is shown in table 2 and table 3.
< total light penetration (Tt) and mist degree (H) >
According to JIS K7361-1, measure total light penetration (Tt) of optical polycarbonate resin film.
According to JIS K7136, measure the mist degree (H) of optical polycarbonate resin film.
< length of delay >
Cut the square test film of size 50mm from the optical polycarbonate resin film that obtains; Use small area degree of birefringence meter (" KOBRA-CCO/X " (trade(brand)name) of prince's instrumentation machine (strain) system, the length of delay of the resin molding under the situation of the incident light of mensuration use wavelength 590nm.
< surface gloss >
According to JIS Z8741, measure 60 degree glossiness of the delustring face (face that contacts with the 2nd cooling roller promptly, has carried out the face that delustring is handled) of the optical polycarbonate resin film that obtains.
<being fuming >
When melt extruding moulding optical polycarbonate resin film, visual observations is fuming from the outlet of die head 3.The situation of almost not being fuming is judged to be " ◎ ", and few situation of being fuming is judged to be " zero ", and many situation of being fuming are judged to be " * ".
< number of the thing that evapotranspires >
When melt extruding moulding optical polycarbonate resin film, through the number of alpha counter (MetOne system) mensuration from the thing that evapotranspires of the outlet generation of die head 3.
At first, be that blank is measured with 1 liter the air of being equivalent to of forcing machine periphery, with the gas displacement that exists in the alpha counter air of forcing machine periphery.Then, on the die head 3 of shape shown in Figure 3, in the position of usefulness * expression, be die head 3 film wide (length) direction central part, apart from the side 2cm of the 2nd cooling roller 5 sides of die head 3, the position high the attraction probe is set apart from the outlet 10cm of die head 3.Then, with attracting about 10 seconds of probe suction air, measure the number of the thing that evapotranspires of each particle size range that is equivalent to exist in 1 liter the air of suction.
Table 2
| ? | Total light penetration (%) | Mist degree (%) | Postpone (nm) | Surface gloss (%) | Be fuming |
| |
89 | 78 | 8 | 13 | ◎ |
| |
89 | 76 | 9 | 14 | ◎ |
| |
89 | 77 | 7 | 13 | ◎ |
| |
89 | 78 | 10 | 14 | ○ |
| Comparative example 1 | 89 | 77 | 9 | 14 | × |
Table 3
The optical polycarbonate resin film of embodiment 1～4 can be as the protective membrane of the polarized light separation sheet in the liquid crystal indicator.
Claims (13)
1. the method for manufacture of an optical polycarbonate resin film, it comprises and melt extrudes polycarbonate-based resin composition, it is characterized in that,
With respect to polycarbonate-based resin 100 weight parts, polycarbonate-based resin composition contains the releasing agent below 0.05 weight part.
2. the method for manufacture of optical polycarbonate resin film according to claim 1, wherein, releasing agent is the ester of alcohol and lipid acid.
3. the method for manufacture of optical polycarbonate resin film according to claim 2, wherein, releasing agent is the ester of polyvalent alcohol and lipid acid.
4. the method for manufacture of optical polycarbonate resin film according to claim 3, wherein, releasing agent is the partial ester of polyvalent alcohol and lipid acid.
5. according to the method for manufacture of each described optical polycarbonate resin film in the claim 1～4, wherein, the thickness of optical polycarbonate resin film is 30～300nm, and total light penetration is more than 85%.
6. according to the method for manufacture of each described optical polycarbonate resin film in the claim 1～5, wherein, the mist degree of optical polycarbonate resin film is more than 50%.
7. according to the method for manufacture of each described optical polycarbonate resin film in the claim 1～6, wherein, the surface gloss of optical polycarbonate resin film is below 50%.
8. according to the method for manufacture of each described optical polycarbonate resin film in the claim 1～7, wherein, be under the situation of 590nm in the incident light wavelength, the delay of optical polycarbonate resin film is below the 30nm.
9. according to the method for manufacture of each described optical polycarbonate resin film in the claim 1～8, wherein, the one side at least of optical polycarbonate resin film is delustring face.
10. the method for manufacture of optical polycarbonate resin film according to claim 9, it comprises the frosted roll formation delustring face that uses.
11. an optical polycarbonate resin film, it obtains through each described method of manufacture in the claim 1～10.
12. optical polycarbonate resin film according to claim 11, it is used for the liquid-crystal display transposition.
13. optical polycarbonate resin film according to claim 12, it is used for protecting the polarized light separation sheet of above-mentioned liquid crystal indicator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010240391A JP2012092216A (en) | 2010-10-27 | 2010-10-27 | Method for producing optical polycarbonate-based resin film, and optical polycarbonate-based resin film |
| JP2010-240391 | 2010-10-27 |
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|---|---|
| CN102532850A true CN102532850A (en) | 2012-07-04 |
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| CN201110445633XA Pending CN102532850A (en) | 2010-10-27 | 2011-10-27 | Method for making makrolon serial resin film for optics and makrolon serial resin film for optics |
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| JP (1) | JP2012092216A (en) |
| KR (1) | KR20120044260A (en) |
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| JP6606904B2 (en) * | 2015-07-29 | 2019-11-20 | 三菱ケミカル株式会社 | Light guide plate formed by molding polycarbonate resin |
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| CN101023136A (en) * | 2004-07-22 | 2007-08-22 | 通用电气公司 | Transparent films, compositions, and method of manufacture thiereof |
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| JPH0747686B2 (en) * | 1989-02-28 | 1995-05-24 | 帝人化成株式会社 | Polycarbonate sheet manufacturing method |
| JP3845213B2 (en) * | 1998-11-05 | 2006-11-15 | 帝人化成株式会社 | Polycarbonate resin composition for sheet |
| JP2004107372A (en) * | 2002-09-13 | 2004-04-08 | Teijin Chem Ltd | Antistatic polycarbonate resin composition |
| JP5228314B2 (en) * | 2005-12-01 | 2013-07-03 | 東レ株式会社 | Diffusion sheet and backlight unit using the same |
| KR101285048B1 (en) * | 2006-06-05 | 2013-07-10 | 테이진 카세이 가부시키가이샤 | Polycarbonate resin film and method for production thereof |
| JP5143587B2 (en) * | 2008-02-25 | 2013-02-13 | 住友化学株式会社 | Manufacturing method of resin film |
| JP5118506B2 (en) * | 2008-02-27 | 2013-01-16 | 住友化学株式会社 | Manufacturing method of resin film |
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