CN103692748B - A kind of optical polyester film - Google Patents
A kind of optical polyester film Download PDFInfo
- Publication number
- CN103692748B CN103692748B CN201310683843.1A CN201310683843A CN103692748B CN 103692748 B CN103692748 B CN 103692748B CN 201310683843 A CN201310683843 A CN 201310683843A CN 103692748 B CN103692748 B CN 103692748B
- Authority
- CN
- China
- Prior art keywords
- priming coat
- layer
- polyester film
- optical polyester
- film
- 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.)
- Active
Links
Abstract
A kind of optical polyester film, including basement membrane and priming coat, obtains through stretch processes, and described basement membrane includes sandwich layer and is positioned at two top layers of core layer surface, and sandwich layer is pet layer, and top layer is PEN layer；The glass transition temperature Tg of priming coat is 40～110 DEG C.The present invention preferably solves that the barrier property differential thermal stability of thin film is poor and the not enough problem of tack between other functional coats, there is again good optical property simultaneously, the needs of the products such as flat panel display backlight module, flexible circuit board, solar battery back film can be met.
Description
Technical field
The present invention relates to a kind of optical polyester film.
Background technology
Optical polyester film due to have excellence optical property, good surface adhesion, good mechanical performance and
Heat resistance, is used widely in recent years.Biaxial tension optical polyester film is owing to having relative to other plastic sheetings
Good dimensional stability, chemical resistance, high transparent and good processability and be largely used to various optical polyester film
The deep processing of material.
Generally, optical polyester film is typically drawn by two-way by monolayer or three strata ethylene glycol terephthalates (PET)
Stretching process manufactures, and its transparency is good, mist degree is low, glossiness, good mechanical performance, but it generally exists, and barrier property is poor, heat is steady
Qualitative difference and the shortcoming of functional coat tack deficiency, these shortcomings seriously constrain the range of application of product.
Therefore, how to provide a and can meet general optical property, barrier property, heat stability and merit can be met again
The optical polyester film that energy property coating tack requires is the problem that industry have to solve.
Summary of the invention
The technical problem to be solved is the weak point existed for prior art, it is provided that a kind of optics polyester
Thin film.
In order to solve problem above, the technical solution used in the present invention is:
A kind of optical polyester film, including basement membrane and priming coat, obtains through stretch processes, it is characterised in that described
Basement membrane includes sandwich layer and is positioned at two top layers of core layer surface, and sandwich layer is pet layer, and top layer is PEN layer；The vitrification of priming coat turns
Temperature Tg is 40～110 DEG C.
Above-mentioned optical polyester film, described sandwich layer is 4～10:1 with the thickness ratio on top layer.
Above-mentioned optical polyester film, described priming coat is by containing water-soluble polyester resin 5～50 weight portion, cross-linking agent 0.5
～5 weight portions, surfactant 0.01～0.1 weight portion, the coating fluid of nanoparticle 0.1～1.5 weight portion solidify to form.
Above-mentioned optical polyester film, the hydroxyl value of described water-soluble polyester resin is 10～80mgKOH/g.
Above-mentioned optical polyester film, described priming coat cross-linking agent include melamine resin, blocked isocyanate,
Carbodiimide one or more, preferably melamine resin, blocked isocyanate.
Above-mentioned optical polyester film, described nanoparticle selected from silicon dioxide, aluminium sesquioxide, titanium dioxide, sodium fluoride,
Zirconium dioxide one or more.
Above-mentioned optical polyester film, the thickness of described priming coat is 50nm～350nm.
Compared with prior art, the basement membrane in the present invention pass through PET sandwich layer and the cooperation on PEN top layer, and to them it
Between THICKNESS CONTROL, preferably solve the barrier property of thin film and the problem of thermal stability difference；And by being coated with on PEN top layer
Cloth priming coat, solves the not enough problem of tack between thin film and other functional coats, has again good light simultaneously
Learn performance, the needs of the products such as flat panel display backlight module, flexible circuit board, solar battery back film can be met.
Detailed description of the invention
Optical polyester film in the present invention includes basement membrane and is coated on the priming coat of membrane surface, and basement membrane is by sandwich layer and sets
Putting two top layer compositions in core layer surface, sandwich layer is polyethylene terephthalate (PET), and top layer is poly-naphthalenedicarboxylic acid second
Diol ester (PEN).Owing to containing the naphthalene nucleus that rigidity is bigger in the molecular structure of PEN, the structure of naphthalene nucleus is easier in plane, phase
For PET, it is 3～4 times of PET to the barrier of aqueous vapor that PEN has more preferable barrier properties for gases, such as PEN；It addition,
The introducing of naphthalene nucleus improves the aromaticity of macromole so that PEN reveals the most excellent heat resistance than pet sheet.Therefore, this
Bright by PET sandwich layer with the combination on PEN surface, preferably solve that barrier property present in prior art is poor, heat stability
The problem of difference.The THICKNESS CONTROL on sandwich layer and top layer is 4～10:1.It addition, PET and PEN that the present invention uses is commercially available prod.
In order to solve the problem of the tack deficiency between basement membrane and other functional coatings, the present invention is at the table on PEN top layer
Face is coated with priming coat, and priming coat is by containing water-soluble polyester resin, cross-linking agent, surfactant, the coating fluid of nanoparticle
It solidify to form.
In the present invention, the water-soluble polyester resin in priming coat is 40～110 DEG C of resins selected from glass transition temperature Tg,
Preferably Tg is 50～80 DEG C of resins.May glue glutinous be unfavorable for product rolling if the Tg of priming coat is too low, the too soft appearance of priming coat
Easily being dissolved by functional resin coating causes ply adhesion bad.If the Tg of priming coat is too high, then cannot film forming well,
Priming coat is excessively in glassy state, and causing cannot be by functional resin coating penetration and swelling, then ply adhesion is the best.
In the present invention, the water-soluble polyester resin in priming coat, selected from the resin that hydroxyl value is 10～80mgKOH/g, is suitable for this
The water-soluble polyester resin of invention can be selected from following substances: Z-221, Z-880 (GOO Chemical), W-0030 (NIPPON
The water-soluble polyester resin such as GOHSEI), introduces active group by priming coat at film surface, can improve surface polarity, simultaneously
Also can carry high surface energy, make film surface and functional coating layer intermolecular formation chemical bond force, thus strong cementitiousness is provided.
In the present invention, the cross-linking agent in priming coat is selected from melamine resin, blocked isocyanate, carbodiimide
One or more, preferably melamine resin, blocked isocyanate.Improved by regulation type of crosslinking agent and addition
The adhesion strength of priming coat, can be long-term with containing active group (hydroxyl, carboxyl, amido, epoxy radicals etc.) resin under cross-linking agent room temperature
Stably coexist, solvent volatilization after, film after Overheating Treatment this cross-linking agent release active group and with the hydroxyl on molecular resin chain
The reaction of base, carboxyl, amino groups forms crosslinking, can significantly improve the adhesive force of polyester, alkyd resin and acrylic resin etc..
In the present invention, the nanoparticle in priming coat selected from silicon dioxide, aluminium sesquioxide, titanium dioxide, sodium fluoride, two
Zirconium oxide one or more.
In the present invention, in priming coat, the content of each component is: water-soluble polyester resin 5～50 weight portion, cross-linking agent 0.5～
5 weight portions, surfactant 0.01～0.1 weight portion, nanoparticle 0.1～1.5 weight portion.
In the present invention, by the interaction between component each in coating fluid and the active group in priming coat and base
Interaction between film, on the one hand improves the tack between priming coat and basement membrane, on the other hand improves the table of basement membrane
Face polarity and surface energy, make the intermolecular formation chemical bond force of film surface and other functional coating layers, thus provide strong viscous
Knot ability.
In the present invention, on the surface of polyester base film, the process of painting bottom coating is to complete in thin film biaxial orientation process,
Coating method can be to use the modes such as intaglio plate roller coat, bar seam painting, pneumatic blade coating, dip-coating, by coating wet coating amount is accurately controlled,
Reach priming coat in THICKNESS CONTROL in the range of 50nm～350nm.
The preferred following steps of manufacture method of optical polyester film of the present invention:
1. polyethylene terephthalate (PET) section through crystallization and dried is entered the main extrusion of twin screw
Machine carries out heating fusion plastification, and PEN (PEN) section enters auxiliary extruder and carries out heating fusion plastification,
Sending into corresponding extrusion system to melt extrude, melt extruding temperature is 260～290 DEG C；
2. basement membrane melt through die is obtained non-oriented basement membrane sheet on the chill roll rotated, in slab roller, lead to 25 DEG C
～the cooling water of about 30 DEG C, to ensure that slab is cooled to less than 60 DEG C；
3. the basement membrane sheet after cooling is heated to 80～120 DEG C, longitudinal stretching 3.0～3.8 times, obtain uniaxial orientation and gather
Ester group film；
4. by the one in the modes such as intaglio plate roller coat, bar seam painting, pneumatic blade coating, dip-coating, by the base coat solution of preparation
It is coated on a face or two faces of longitudinal stretching rear film；
5. will coat the diaphragm of priming coat after 90～180 DEG C of heat dryings, cross directional stretch 3.0～4.0 times；
6., by the thin film after stretching through 200～250 DEG C of thermal finalizations, rolling after cooling, obtain the bonding substrate modified of optics
Film.
Below in conjunction with specific embodiment, optical polyester film of the present invention is further described, but the guarantor of the present invention
The scope of protecting is not limited to these embodiments that the present invention mentions.
Embodiment 1
1. the preparation of priming coat coating fluid
Water-soluble polyester resin A W-0030 (NIPPON GOHSEI) 5 parts, 84 parts of water, surfactant Tomadol
25-7(Tomah Chemical) 0.01 part, crosslinking agent B L3175 (BAYER) 0.5 part, add Nano silicon dioxide dispersion breast
Liquid 0.1 part, is uniformly dispersed by high-shear emulsion machine, obtains priming coat coating fluid, standby.
2. the preparation of optical polyester film
Polyethylene terephthalate (PET) section through crystallization and dried is entered twin screw main extruder
Carrying out heating fusion plastification, PEN (PEN) section enters auxiliary extruder and carries out heating fusion plastification, molten
Body is cooled to three-decker polyester base film sheet on slab roller, and sandwich layer and skin depth are than for 4:1；
By polyester base film sheet longitudinal stretching 3.5 times, by gravure roll, base coat solution is coated on through longitudinal stretching
Thin film two sides, cross directional stretch 3.8 times, then thermal finalization, rolling, obtain the optical polyester film that thickness is 125um, priming coat
Thickness is 50nm, surveys its performance (see Table 1).
Embodiment 2
1. the preparation of priming coat coating fluid
Water-soluble polyester resin A W-0030 (NIPPON GOHSEI) 10 parts, deionized water 72 parts, surfactant
Tomadol 25-7(Tomah Chemical) 0.04 part；Crosslinking agent B L3175 (BAYER) 1.0 parts；Add nano zirconium dioxide
Dispersion emulsion 0.5 part, is uniformly dispersed by high-shear emulsion machine, obtains priming coat coating fluid, standby.
2. the preparation of optical polyester film
Polyethylene terephthalate (PET) section through crystallization and dried is entered twin screw main extruder
Carrying out heating fusion plastification, PEN (PEN) section enters auxiliary extruder and carries out heating fusion plastification, molten
Body is cooled to three-decker polyester base film sheet on slab roller, and sandwich layer and skin depth are than for 6:1；
By polyester base film sheet longitudinal stretching 3.5 times, by gravure roll, base coat solution is coated on through longitudinal stretching
Thin film two sides, cross directional stretch 3.8 times, then thermal finalization, rolling, obtain the optical polyester film that thickness is 125um, priming coat
Thickness is 90nm, surveys its performance (see Table 1).
Embodiment 3
1. the preparation of priming coat coating fluid
Water-soluble polyester resin B Z-880 (GOO Chemical) 20 parts, deionized water 78 parts, surfactant
Tomadol 25-12(Tomah Chemical) 0.05 part；Cross-linking agent CYMEL 327 (Cytec) 1.5 parts；Add nano-silica
Changing titanium dispersion emulsion 0.75 part, high-shear emulsion machine is uniformly dispersed, and obtains priming coat coating fluid, standby.
2. the preparation of optical polyester film
Polyethylene terephthalate (PET) section through crystallization and dried is entered twin screw main extruder
Carrying out heating fusion plastification, PEN (PEN) section enters auxiliary extruder and carries out heating fusion plastification, molten
Body is cooled to three-decker polyester base film sheet on slab roller, and sandwich layer and skin depth are than for 7:1；
By polyester base film sheet longitudinal stretching 3.5 times, by gravure roll, base coat solution is coated on through longitudinal stretching
Thin film two sides, cross directional stretch 3.8 times, then thermal finalization, rolling, obtain the optical polyester film that thickness is 125um, priming coat
Thickness is 120nm, surveys its performance (see Table 1).
Embodiment 4
1. the preparation of priming coat coating fluid
Water-soluble polyester resin B Z-880 (GOO Chemical) 35 parts, deionized water 61 parts, surfactant
Merpoxen NO-200(Kompen) 0.08 part；Cross-linking agent CYMEL 327 (Cytec) 2.5 parts；Add the dispersion of nanometer sodium fluoride
Precursor emulsion 1.0 parts, is uniformly dispersed by high-shear emulsion machine, obtains priming coat coating fluid, standby.
2. the preparation of optical polyester film
Polyethylene terephthalate (PET) section through crystallization and dried is entered twin screw main extruder
Carrying out heating fusion plastification, PEN (PEN) section enters auxiliary extruder and carries out heating fusion plastification, molten
Body is cooled to three-decker polyester base film sheet on slab roller, and sandwich layer and skin depth are than for 8:1；
By polyester base film sheet longitudinal stretching 3.5 times, by gravure roll, base coat solution is coated on through longitudinal stretching
Thin film two sides, cross directional stretch 3.8 times, then thermal finalization, rolling, obtain the optical polyester film that thickness is 125um, priming coat
Thickness is 200nm, surveys its performance (see Table 1).
Embodiment 5
1. the preparation of priming coat coating fluid
Water-soluble polyester resin C Z-221 (GOO Chemical) 50 parts, deionized water 43 parts, surfactant
Merpoxen NO-200(Kompen) 0.1 part；Cross-linking agent MW-12LF (three and chemistry) 5.0 parts；Add nano-aluminium oxide
Dispersion emulsion 1.5 parts, is uniformly dispersed by high-shear emulsion machine, obtains priming coat coating fluid, standby.
2. the preparation of optical polyester film
Polyethylene terephthalate (PET) section through crystallization and dried is entered twin screw main extruder
Carrying out heating fusion plastification, PEN (PEN) section enters auxiliary extruder and carries out heating fusion plastification, molten
Body is cooled to three-decker polyester base film sheet on slab roller, and sandwich layer and skin depth are than for 10:1；
By polyester base film sheet longitudinal stretching 3.5 times, by gravure roll, base coat solution is coated on through longitudinal stretching
Thin film two sides, cross directional stretch 3.8 times, then thermal finalization, rolling, obtain the optical polyester film that thickness is 125um, priming coat
Thickness is 125nm, surveys its performance (see Table 1).
Comparative example 1
Take high molecular saturated polyester D W-961 (NIPPON GOHSEI) 17 parts, deionized water 82 parts, surfactant
Merpoxen NO-200(Kompen) 0.05 part；Adding nanoparticle dispersion emulsion 0.6 part, above-mentioned material utilizes high shear
Mulser is uniformly dispersed.
Polyethylene terephthalate (PET) section through crystallization and dried is respectively enterd twin screw master squeeze
Going out machine to carry out heating fusion plastification and auxiliary extruder and carry out heating fusion plastification, it is thick that melt is cooled to polyester base film on slab roller
Sheet；
By polyester base film sheet longitudinal stretching 3.5 times, by gravure roll, base coat solution is coated on through longitudinal stretching
Thin film two sides, cross directional stretch 3.8 times, then thermal finalization, rolling, obtain the optical polyester film that thickness is 125um, priming coat
Thickness is 80nm, surveys its performance (see Table 1).
Comparative example 2
Take high molecular saturated polyester E Z-3310 (GOO Chemical) 45 parts, deionized water 53 parts, surfactant
Merpoxen NO-200(Kompen) 0.05 part；Cross-linking agent XL-723 (STAHL) 1.5 parts；Add nanoparticle dispersion emulsion
0.8 part, above-mentioned material utilizes high-shear emulsion machine to be uniformly dispersed.
Polyethylene terephthalate (PET) section through crystallization and dried is respectively enterd twin screw master squeeze
Going out machine to carry out heating fusion plastification and auxiliary extruder and carry out heating fusion plastification, it is thick that melt is cooled to polyester base film on slab roller
Sheet；
By polyester base film sheet longitudinal stretching 3.5 times, by gravure roll, base coat solution is coated on through longitudinal stretching
Thin film two sides, cross directional stretch 3.8 times, then thermal finalization, rolling, obtain the optical polyester film that thickness is 125um, priming coat
Thickness is 220nm, surveys its performance (see Table 1).
In table 1, the method for testing of properties is as follows:
1, coating layer thickness: F40-NSR blooming measuring instrument, coating thickness measurement scope 10nm-35 m.
2, Tg:PerkinElmer DSC4000/6000 differential scanning calorimeter.
3, hydroxyl value: the milligram number of the potassium hydroxide (KOH) that hydroxyl in 1g sample is suitable, represents with mgKOH/g.
4, mist degree: Denshoku NDH-4000 is tested by ASTM D1003 prescriptive procedure.
5, tack: film surface coating UV curing acrylic resinous coat, thickness 20～35 μm, hundred lattice methods of testing, 3M
610 adhesive tapes carry out section lines and paste test, are measured the amount of the residual resin adhered to above thin film.
6, UV rejection rate: LH-1013 light transmittance test volume instrument, tests ultraviolet range 200nm～380nm.
7, heat resistance: after 130 DEG C × 50%RH × 500h of environmental condition, MD direction percentage elongation.
Table 1: performance data table
Claims (6)
1. an optical polyester film, including basement membrane and priming coat, obtains through stretch processes, it is characterised in that described base
Film includes sandwich layer and is positioned at two top layers of core layer surface, and sandwich layer is pet layer, and top layer is PEN layer；The glass transition of priming coat
Temperature Tg is 40～110 DEG C；
Described priming coat is by containing water-soluble polyester resin 5～50 weight portion, cross-linking agent 0.5～5 weight portion, surfactant
0.01～0.1 weight portion, the coating fluid of nanoparticle 0.1～1.5 weight portion solidify to form；
The hydroxyl value of described water-soluble polyester resin is 10～80mgKOH/g.
Optical polyester film the most according to claim 1, it is characterised in that the thickness ratio on described sandwich layer and top layer be 4～
10:1.
Optical polyester film the most according to claim 2, it is characterised in that described cross-linking agent is melamino-formaldehyde tree
Fat, blocked isocyanate, carbodiimide one or more.
Optical polyester film the most according to claim 3, it is characterised in that described cross-linking agent is melamino-formaldehyde tree
Fat, blocked isocyanate.
Optical polyester film the most according to claim 4, it is characterised in that described nanoparticle selected from silicon dioxide, three
Al 2 O, titanium dioxide, sodium fluoride, zirconium dioxide one or more.
Optical polyester film the most according to claim 5, it is characterised in that the thickness of described priming coat be 50nm～
350nm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683843.1A CN103692748B (en) | 2013-12-13 | 2013-12-13 | A kind of optical polyester film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683843.1A CN103692748B (en) | 2013-12-13 | 2013-12-13 | A kind of optical polyester film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103692748A CN103692748A (en) | 2014-04-02 |
| CN103692748B true CN103692748B (en) | 2016-08-17 |
Family
ID=50354492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310683843.1A Active CN103692748B (en) | 2013-12-13 | 2013-12-13 | A kind of optical polyester film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103692748B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943301B (en) * | 2015-06-23 | 2017-05-31 | 宁波长阳科技股份有限公司 | A kind of superelevation intercepts optical polyester film and preparation method thereof |
| CN106903959B (en) * | 2017-02-27 | 2019-08-20 | 宁波长阳科技股份有限公司 | A kind of solar energy backboard barrier film and preparation method thereof |
| CN108034065B (en) * | 2018-01-05 | 2020-12-01 | 合肥乐凯科技产业有限公司 | Optical polyester film and preparation method thereof |
| CN110253988A (en) * | 2019-06-04 | 2019-09-20 | 深圳先进技术研究院 | A kind of polymer film and preparation method thereof with electro-magnetic screen function |
| CN112646223A (en) * | 2019-12-27 | 2021-04-13 | 富维薄膜（山东）有限公司 | High-barrier polyester film and production method thereof |
| CN111490084B (en) * | 2020-04-21 | 2023-02-03 | 京东方科技集团股份有限公司 | Preparation method of display module, display module and electronic equipment |
| CN113088165A (en) * | 2021-03-30 | 2021-07-09 | 安徽国风塑业股份有限公司 | Online coating water-based primer coating and polyester film containing primer |
| CN114395157A (en) * | 2021-12-22 | 2022-04-26 | 合肥乐凯科技产业有限公司 | Hardened film and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981476A (en) * | 2008-03-31 | 2011-02-23 | 3M创新有限公司 | Primer layer for multilayer optical film |
| CN102225648A (en) * | 2011-04-14 | 2011-10-26 | 江苏裕兴薄膜科技股份有限公司 | High-barrier polyester film and its preparation method |
| CN102514275A (en) * | 2011-11-10 | 2012-06-27 | 合肥乐凯科技产业有限公司 | Optical polyester thin film and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000158613A (en) * | 1998-09-24 | 2000-06-13 | Toray Ind Inc | Biaxially oriented polyester film |
| KR101218146B1 (en) * | 2005-11-08 | 2013-01-03 | 도레이첨단소재 주식회사 | Biaxially-stretched polyester film for optical use |
-
2013
- 2013-12-13 CN CN201310683843.1A patent/CN103692748B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981476A (en) * | 2008-03-31 | 2011-02-23 | 3M创新有限公司 | Primer layer for multilayer optical film |
| CN102225648A (en) * | 2011-04-14 | 2011-10-26 | 江苏裕兴薄膜科技股份有限公司 | High-barrier polyester film and its preparation method |
| CN102514275A (en) * | 2011-11-10 | 2012-06-27 | 合肥乐凯科技产业有限公司 | Optical polyester thin film and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103692748A (en) | 2014-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103692748B (en) | A kind of optical polyester film | |
| TWI602695B (en) | Laminated film | |
| CN103756526B (en) | A kind of antistatic aqueous coating fluid | |
| JP5271008B2 (en) | Laminated body | |
| CN105176432B (en) | A kind of preparation method of antistatic polyester diaphragm | |
| JP5221880B2 (en) | White polyester film for reflector | |
| KR102382903B1 (en) | Highly-adhesive composition, optical film using same, and production method therefor | |
| JP2011230437A (en) | Laminated polyester film | |
| CN101228462A (en) | Polarizing plate and image display device | |
| CN102200604A (en) | Polarizing plate and manufacturing method thereof | |
| TWI520994B (en) | Optical film including coated functional layer, polarizing plate and image display device comprising the same | |
| JP4779809B2 (en) | Laminated polyester film for conductive film | |
| CN111823680A (en) | Light-blocking low-density shrink film and preparation method thereof | |
| CN112159630B (en) | Optical film, preparation method thereof and composite brightness enhancement film | |
| KR20120132487A (en) | Biaxially oriented polyester film and release film comprising same | |
| JP2017523605A (en) | Polyester film containing amorphous polyester | |
| KR100688256B1 (en) | Pressure sensitive adhesive film for protection of surface and manufacturing method thereof | |
| TW201030394A (en) | Polarizing element outer protective film, polarizing plate and liquid crystal display element | |
| TWI511882B (en) | Stretched laminate, method of manufacturing thin polarizer, thin polarizer manufactured by the method, and polarizing plate including the thin polarizer | |
| CN105754128B (en) | A kind of optical polyester film and its manufacturing method | |
| JP4859038B2 (en) | Polarizing plate and image display device | |
| JP6638657B2 (en) | Single-layer resin film, method for producing the same, back sheet for solar cell provided with the same, polarizing plate protective film, architectural member, automotive member, and decorative sheet for mobile device | |
| JP4521704B2 (en) | Release film | |
| JP2005091900A (en) | Optical film, polarizer, phase difference film, and liquid crystal display | |
| JP6108709B2 (en) | Transparent conductive film sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: A New District Industrial Park Industrial Park Station lucky District of Hefei City, Anhui province 230041 Co-patentee after: LUCKY HEALTHCARE Co.,Ltd. Patentee after: HEFEI LUCKY SCIENCE & TECHNOLOGY INDUSTRY Co.,Ltd. Address before: A New District Industrial Park Industrial Park Station lucky District of Hefei City, Anhui province 230041 Co-patentee before: BAODING LUCKY FLIM Co.,Ltd. Patentee before: HEFEI LUCKY SCIENCE & TECHNOLOGY INDUSTRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |