CN104342045B - Surface protection film and be fitted with the optics of this surface protection film - Google Patents
Surface protection film and be fitted with the optics of this surface protection film Download PDFInfo
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- CN104342045B CN104342045B CN201410312324.9A CN201410312324A CN104342045B CN 104342045 B CN104342045 B CN 104342045B CN 201410312324 A CN201410312324 A CN 201410312324A CN 104342045 B CN104342045 B CN 104342045B
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- Prior art keywords
- film
- surface protection
- protection film
- adhesive layer
- adherend
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Classifications
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- 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
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
- Polarising Elements (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
The present invention provide a kind of surface is had irregular optical film also be able to use and to the pollution of adherend less, to the low stain of adherend also will not deterioration and there is the surface protection film of excellent antistripping antistatic property, and employ the optics of this surface protection film.One side at the base material film (1) being made up of the resin with the transparency is formed with adhesive layer (2), and in the surface protection film (10) of the stripping film (5) with peeling agent layer (4) of having fitted on adhesive layer (2), stripping film (5) is to form at one side stacking peeling agent layer (4) of resin molding (3), described peeling agent layer (4) contains the remover using dimethyl polysiloxane as main component and the antistatic additive not reacted with this remover, shifted from stripping film (5) to the surface of adhesive layer (2) by described antistatic additive composition, the stripping electrostatic pressure when adherend peels foregoing adhesives layer (2) can be reduced.
Description
Technical field
The present invention relates to one and fit in the opticses such as Polarizer, polarizer, display lens coating
The surface protection film on the surface of (below, sometimes referred to as " optical film ").More specifically, the present invention
There is provided a kind of adherend is polluted few surface protection film so that have without deterioration excellent
The surface protection film of antistripping antistatic property and be fitted with the optics of this surface protection film.
Background technology
At present, when manufacture, carrying Polarizer, polarizer, display lens coating, antireflection film,
The optical film of hard coat film, touch panel nesa coating etc. and employ their display etc.
During optical articles, prevented in subsequent handling by the surface coating surface protecting film at this optical film
Surface contamination, scratch.In order to save surface protection film is peeled off after the labour that fits again and time
Between thus improve working performance, for the visual examination as the optical film of product, the most also at light
Directly implement under the state of surface protection film of fitting on film.
Since in the past, in the manufacturing process of optical articles, in order to prevent the attachment of scar, dirt,
The one side being generally used in base material film is provided with the surface protection film of adhesive layer.Surface protection film is to pass through
The adhesive layer of micro-cohesive force is bonded on optical film.Adhesive layer is set as the former of micro-cohesive force
Because being, in order to complete surface protection film being used can to hold when removing from optical film sur-face peeling
Change places and peel off, and in order to prevent binding agent from adhering to and remain in the light of the product as adherend
Phenomenon (the so-called generation preventing glue residue) on film.
In recent years, in the production process of display panels, owing to the table on optical film will be fitted in
The stripping electrostatic pressure produced when surface protective film is peeled off and removed, can destroy for controlling the aobvious of liquid crystal display
The circuit blocks such as the driving IC showing picture, also the orientation of liquid crystal molecule can be damaged, although these phenomenons are sent out
Raw number of packages is few but is also occurring.
It addition, for the power consumption reducing display panels, the driving voltage of liquid crystal material tends to reducing,
The breakdown voltage driving IC therewith also tends to reduce.Recently, it is desirable to stripping electrostatic pressure is controlled+
In the range of 0.7kV～-0.7kV.
It addition, in recent years, popularizing along with 3D display (autostereoscopic display), have partially
Surface laminating FPR (patterned retarder, Film Patterned Retarder) of the optical films such as tabula rasa
The situation of film.Peel off after the surface protection film fitted in the surface of the optical films such as Polarizer, then fit
FPR film.But, the binding agent that uses in the optical film surface of Polarizer etc. is by surface protection film,
When antistatic additive is polluted, there is the problem being difficult to paste FPR film.Therefore, to use in this purposes
For surface protection film, it is desirable to it is few to the pollution of adherend.
On the other hand, in some liquid crystal panel manufacturers, as surface protection film to adherend
The evaluation methodology of contaminative, is to adopt with the following method: first to the table of laminating on the optical film of Polarizer etc.
Surface protective film is peeled off, and fits when being mixed into bubble again, to the object after laminating again
Carry out heat treated under prescribed conditions, then peel off surface protection film and observe the surface of adherend.
In this evaluation methodology, even if the surface contamination of adherend is trace, if but being mixed into bubble
The difference of adherend surface contamination is there is with the binder phase of surface protection film between the part that part contacts
Different, then can remain as bubble impression (sometimes referred to as " bubble stains ").Accordingly, as to quilt
The evaluation methodology of the contaminative on adherend surface, the evaluation methodology that can be strict.In recent years, according to
The result judged is carried out, it is also desirable to the surface contamination side to adherend with this strict evaluation methodology
The surface protection film that face is no problem.
In order to prevent from as the optical film of adherend peel off surface protection film time because of peel off electrostatic pressure
Defect caused by height, it is thus proposed that a kind of surface protection film, it uses containing for reducing stripping
The adhesive layer of the antistatic additive of electrostatic pressure.
Such as, in patent documentation 1, disclose a kind of use by alkyl trimethyl ammonium salt, hydroxyl
The surface protection film of the binding agent of acrylic polymer, polyisocyanate composition.
It addition, in patent documentation 2, disclosing a kind of is less than 1.0 by ionic liquid and acid number
The adhesive composition of acrylate copolymer composition and employ the bonding sheet class of said composition.
It addition, in patent documentation 3, disclose a kind of by acrylate copolymer, polyether polyol
Thing, the adhesive composition of the alkali metal salt composition crossed by Anion-adsorption compound treatment and
Employ the surface protection film of said composition.
It addition, in patent documentation 4, disclose a kind of by ionic liquid, alkali metal salt, vitrification
Transition temperature is the adhesive composition of the polymer composition of less than 0 DEG C and employs said composition
Surface protection film.
In above-mentioned patent documentation 1～4, it is inside adhesive layer, be added with antistatic additive.But, bonding
The thickness of oxidant layer is the thickest, and along with the time after fitting in adherend elapses, antistatic additive is from viscous
Knot oxidant layer can be the most to the amount that the adherend that surface protection film is fitted moves.When antistatic additive is to being glued
When the amount that attached body moves increases, the exterior quality as the optical film of adherend reduces；Or,
During laminating FPR film, there is the probability that the cementability of FPR film reduces.
In order to reduce the rheological parameters' change with time of the antistatic additive now shifting to adherend from adhesive layer, if reducing
The thickness of adhesive layer, then can produce other problem.Such as, when for applying anti-to prevent from dazzling
During the irregular optical films in surface such as the Polarizer after dazzle process, adhesive layer cannot cater to optics and use
Film surface concavo-convex and be mixed into bubble, or, owing to the bond area of optical film with binding agent reduces
Reduce cohesive force, in use can there is the problem that protecting film occurs to separate or peel off.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2005-131957 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2005-330464 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2005-314476 publication
Patent documentation 4: Japanese Unexamined Patent Publication 2006-152235 publication
Summary of the invention
The problem that invention is to be solved
Accordingly, it would be desirable to a kind of surface protection film used in optical film, it is to irregular on surface
Optical film also is able to use, and pollutes adherend considerably less and does not has the contaminative of adherend
There is rheological parameters' change with time (passage changes the most over time), and, additionally it is possible to suppress lower peeling off
The surface protection film peeling off electrostatic pressure during surface protection film.
This problem is studied intensively by the present inventor etc..
In order to reduce rheological parameters' change with time adherend being polluted and also reducing contaminative, need to reduce quilt
Speculate the amount of the antistatic composition that adherend is polluted.But, when the amount reducing antistatic composition
Time, stripping electrostatic pressure when can cause peeling off surface protection film from adherend uprises.The present inventor etc.
Have studied and suppress lower to peel off from adherend in the case of the absolute magnitude not increasing antistatic composition
The method peeling off electrostatic pressure during surface protection film.
It is it was found that add antistatic additive the most in a binder and carry out mixing and forming adhesive layer,
But applied adhesive compositions being dried and after laminating adhesive layer, by adhesive layer surface
Give appropriate antistatic composition, it is possible to suppress lower to peel off from as the optical film of adherend
Stripping electrostatic pressure during surface protection film, and complete the present invention based on above-mentioned discovery.
The present invention is exactly to complete in view of the foregoing, and its problem is, it is provided that a kind of have on surface
Concavo-convex optical film also is able to use and the pollution to adherend is few, and the low dirt to adherend
Metachromia will not because time passage the surface protection film that change, and then have without deterioration (along with
Time passage does not deteriorates) the surface protection film of excellent antistripping antistatic property, and employ
The optics of this surface protection film.
The method solving problem
In order to solve above-mentioned problem, the technological thought of the surface protection film of the present invention is, in coating bonding
Agent compositions is also dried and after laminating adhesive layer, gives appropriate resisting to the surface of this adhesive layer
Electrostatic agent, thereby, it is possible to suppress the contaminative to adherend lower, and can suppress lower
From as stripping electrostatic pressure when peeling off the optical film of adherend.
In order to solve above-mentioned problem, the present invention provides a kind of surface protection film, and it is by having the transparency
Resin constitute base material film one side on be formed with adhesive layer and be fitted with tool on this adhesive layer
Having the surface protection film of the stripping film of peeling agent layer, wherein, this stripping film is the one side upper strata at resin molding
Folded peeling agent layer forms, and this peeling agent layer contains the remover using dimethyl polysiloxane as main component
And the antistatic additive not reacted with this remover, foregoing antistatic agents composition from aforementioned stripping film to
The surface transfer of foregoing adhesives layer such that it is able to reduce when adherend peels foregoing adhesives layer
Peel off electrostatic pressure.
Additionally, it is preferred that foregoing antistatic agents is alkali metal salt.
Additionally, it is preferred that foregoing adhesives layer is to make the crosslinking of (methyl) acrylate copolymer form.
Additionally, it is preferred that the peeling force when aforementioned adhesive layer peels off aforementioned stripping film be 0.2N/50mm with
Under.
It addition, the present invention provides a kind of optics, it is fitted with above-mentioned surface protection film.
Invention effect
The surface protection film of the present invention is few to the pollution of adherend, and the low stain to adherend
Will not change because of time passage.It addition, based on the present invention, even if adherend is AG polarisation
The irregular optical film in surface of plate etc. also is able to use.It addition, surface protection film based on the present invention,
Can provide a kind of can suppress lower from as the stripping occurred when peeling off the optical film of adherend
Electrostatic pressure also has without deterioration and the surface protection film of excellent antistripping antistatic property, and make
With the optics of this surface protection film.
Surface protection film based on the present invention, it is possible to reliably protection optical film surface, therefore, it is possible to real
The raising of existing production efficiency and the raising of yield rate.
Accompanying drawing explanation
Fig. 1 is the profile of the concept of the surface protection film representing the present invention.
Fig. 2 is the profile representing the state peeling stripping film from the surface protection film of the present invention.
Fig. 3 is the profile of an embodiment of the optics representing the present invention.
The explanation of reference
1 ... base material film；2 ... adhesive layer；3 ... resin molding；4 ... peeling agent layer；
5 ... stripping film；7 ... antistatic additive；8 ... adherend (optics)；
10 ... surface protection film；11 ... peel the surface protection film after stripping film；
20 ... the optics of surface protection film of having fitted.
Detailed description of the invention
Below, the present invention is described in detail based on embodiment.
Fig. 1 is the profile of the concept of the surface protection film representing the present invention.This surface protection film 10 be
The surface of the one side of transparent base film 1 is formed with adhesive layer 2.The surface of this adhesive layer 2 is pasted
Conjunction has stripping film 5, and this stripping film 5 is to form peeling agent layer 4 to form on the surface of resin molding 3.
As in the surface protection film 10 of the present invention use base material film 1, use by have the transparency and
The base material film that flexible resin is constituted.Thereby, it is possible to surface protection film is being fitted in as adherend
Optics state under implement the visual examination of optics.Transparent by having as base material film 1
Property resin constitute film, be preferably used polyethylene terephthalate, PEN,
Polyethylene glycol isophthalate (polyethylene isophthalate), polybutylene terephthalate (PBT)
Deng polyester film.As long as there is desirable strength as this film and there is optics adaptability, except polyester film
The film being made up of other resin can also be used in addition.Base material film 1 both can be unstretching film, it is also possible to
It it is the film being subjected to be stretched uniaxially or biaxially.Alternatively, it is also possible to by the stretching ratio of stretched film, draw
Stretch the axial orientation angles that the adjoint crystallization of film formed to control at particular value.
For the thickness of the base material film 1 used in the surface protection film 10 of the present invention, the most particularly
Limit, for example, it is preferable to be the thickness about 12～100 μm；If the thickness about 20～50 μm is then
Easily operated, the most more preferably.
It addition, as required, can be in the face with the opposition side, face being formed with adhesive layer 2 of base material film 1
On, it is provided for preventing the stain-proofing layer of surface contamination, antistatic layer, prevents the hard conating etc. of scratch.Separately
Outward, on the surface of base material film 1, it is also possible to implement surface modification, the silane coupling agent carried out based on corona discharge
Easy bondingization such as smear process.
It addition, for the adhesive layer 2 used in the surface protection film 10 of the present invention, as long as at quilt
The surface of adherend carry out bonding, use after can peel simply and be difficult to pollute adherend
Adhesive layer, is not particularly limited, but in view of the durability etc. after laminating on optical film,
Generally use the adhesive layer making (methyl) acrylate copolymer cross-link.
As (methyl) acrylate copolymer, can enumerate principal monomer and comonomer, official
The copolymer of copolymerization can be carried out by property monomer, wherein, described principal monomer can enumerate n-butyl acrylate,
2-EHA, Isooctyl acrylate monomer, acrylic acid different nonyl ester etc.；Described comonomer can be lifted
Go out acrylonitrile, vinylacetate, methyl methacrylate, ethyl acrylate etc.；Described functional monomer
Acrylic acid, methacrylic acid, 2-(Acryloyloxy)ethanol, hy-droxybutyl, methacrylic acid contracting can be enumerated
Water glyceride, N-methylol methacrylamide etc..In (methyl) acrylate copolymer, mainly single
Body and other monomer can be all (methyl) acrylate, it is also possible to as the monomer beyond principal monomer,
The monomer in addition to (methyl) acrylate containing one or more.
Furthermore it is possible to the compound containing polyoxyalkylene is entered with (methyl) acrylate copolymer
Row copolymerization or mixing.As the compound containing copolymerizable polyoxyalkylene, can enumerate: poly-second
Glycol (400) mono acrylic ester, Polyethylene Glycol (400) monomethacrylates, methoxy poly (ethylene glycol) (400)
Acrylate, methoxy poly (ethylene glycol) (400) methacrylate, polypropylene glycol (400) mono acrylic ester,
Polypropylene glycol (400) monomethacrylates, methoxyl group polypropylene glycol (400) acrylate, methoxyl group poly-third
Glycol (400) methacrylate etc..By these being contained the monomer of polyoxyalkylene and aforementioned (first
Base) principal monomer of acrylate copolymer, functional monomer carry out copolymerization, it is possible to obtain by containing poly-
The binding agent that the copolymer of alkylidene oxide is constituted.
As the compound containing polyoxyalkylene that can mix with (methyl) acrylate copolymer,
It is preferably (methyl) acrylate copolymer containing polyoxyalkylene, more preferably containing polyoxygenated
The polymer of (methyl) acrylic monomer of alkylidene, for example, it is possible to it is single to enumerate Polyethylene Glycol (400)
Acrylate, Polyethylene Glycol (400) monomethacrylates, methoxy poly (ethylene glycol) (400) acrylate,
Methoxy poly (ethylene glycol) (400) methacrylate, polypropylene glycol (400) mono acrylic ester, polypropylene glycol
(400) monomethacrylates, methoxyl group polypropylene glycol (400) acrylate, methoxyl group polypropylene glycol (400)
The polymer such as methacrylate.By these being contained the compound of polyoxyalkylene and aforementioned (first
Base) acrylate copolymer mixes, it is possible to obtain be added with the compound containing polyoxyalkylene and
The binding agent become.
For the firming agent made an addition in adhesive layer 2, as making (methyl) acrylate copolymer
Crosslinking cross-linking agent, can enumerate isocyanate compound, epoxide, melamine compound,
Metallo-chelate etc..It addition, as viscosifier, can enumerate rosin, coumarone-indene, terpenes,
Petroleum-type, phenols etc..
Thickness to the adhesive layer 2 used in the surface protection film 10 of the present invention, the most particularly limit
Fixed, for example, it is preferable to be the thickness about 5～40 μm, the thickness about more preferably 10～30 μm.
When being 0.03～0.3N/25mm for surface protection film to the peel strength (cohesive force) on adherend surface
When left and right, the adhesive layer 2 with micro-cohesive force, when peeling off surface protection film from adherend
Operability is excellent, the most preferably.It addition, based on the operation when surface protection film 10 peels stripping film 5
The viewpoint that property is excellent, the preferably peeling force when adhesive layer 2 peels stripping film 5 be 0.2N/50mm with
Under.
It addition, for the stripping film 5 used in the surface protection film 10 of the present invention, be at resin molding 3
One side on stacking peeling agent layer 4 form, described peeling agent layer 4 containing using dimethyl polysiloxane as
The remover of main component and the antistatic additive not reacted with this remover.
As resin molding 3, polyester film, polyamide membrane, polyethylene film, polypropylene screen can be enumerated, gather
Acid imide film etc., from the viewpoint of excellent transparency and less expensive, particularly preferably polyester film.
Resin molding both can be unstretching film, it is also possible to be monadic stretching membrane or biaxially-stretched film.Additionally, it is possible to
With the orientation angles on the direction of principal axis that the adjoint crystallization by the stretching ratio of stretched film, stretched film is formed
Control at particular value.
The thickness of resin molding 3 is not particularly limited, for example, it is preferable to be about 12～100 μm
Thickness；If the thickness about 20～50 μm is the most easily operated, the most more preferably.
It addition, on the surface of resin molding 3, it is also possible to implement the table carried out based on corona discharge as required
Face is modified, easy bondingization such as smear of silane coupling agent processes.
As constitute peeling agent layer 4, using dimethyl polysiloxane as the remover of main component, can
To enumerate known to addition reaction-type, condensation reaction type, cationic polymerization type, radical polymerization mould assembly etc.
Polysiloxane-based remover.As the product that the polysiloxane-based remover of addition reaction-type is commercially available, such as,
Can enumerate: KS-776A, KS-847T, KS-779H, KS-837, KS-778, KS-830 (letter
More chemical industry Co., Ltd. manufactures)；SRX-211、SRX-345、SRX-357、SD7333、SD7220、
SD7223, LTC-300B, LTC-350G, LTC-310 (Dow Corning Toray Co., Ltd (Dow
Corning Toray Co., Ltd.) manufacture) etc..As the product that condensation reaction type is commercially available, such as, can
To enumerate SRX-290, SYLOFF-23 (Dow Corning Toray Co., Ltd's manufacture) etc..As sun from
The product that sub-aggretion type is commercially available, for example, it is possible to enumerate TPR-6501, TPR-6500, UV9300,
UV9315, UV9430 (MomentivePerformanceMaterials (Momentive Performance Materials Inc.)
Manufacture), X62-7622 (Shin-Etsu Chemial Co., Ltd's manufacture) etc..As radical polymerization mould assembly city
The product sold, for example, it is possible to enumerate X62-7205 (Shin-Etsu Chemial Co., Ltd's manufacture) etc..
As the antistatic additive of composition peeling agent layer 4, preferably to using dimethyl polysiloxane as main one-tenth
The favorable dispersibility of the stripper solution divided, and do not hinder using dimethyl polysiloxane as main component
The antistatic additive of solidification of remover.It addition, for antistatic additive, in order to from peeling agent layer
4 to adhesive layer 2 surface transfer and to adhesive layer give antistatic effect, the most not with dimethyl
The antistatic additive that polysiloxanes reacts as the remover of main component.As this antistatic additive,
Preferred as alkali salt.
As alkali metal salt, the slaine of lithium, sodium, potassium can be enumerated.Specifically, for example, it is preferable to
Li is passed through in use+、Na+、K+Cation and Cl-、Br-、I-、BF4 -、PF6 -、SCN-、ClO4 -、
CF3SO3 -、(CF3SO2)2N-、(C2F5SO2)2N-、(CF3SO2)3C-Deng the metal that formed of anion
Salt.Wherein, LiBr, LiI, LiBF are particularly preferably used4、LiPF6、LiSCN、LiClO4、LiCF3SO3、
Li(CF3SO2)2N、Li(C2F5SO2)2N、Li(CF3SO2)3The lithium salts such as C.These alkali metal salts can be independent
Use or also can mix two or more use.In order to make ionic substance stabilisation, it is also possible to add and contain
The compound of polyoxyalkyl based structures.
Antistatic additive, relative to the addition of the remover using dimethyl polysiloxane as main component, is
Kind according to antistatic additive is different and different from the affinity degree of remover, if in view of from
Required when peeling off surface protection film in adherend peel off electrostatic pressure, to the contaminative of adherend, viscous
Junction characteristic etc. and be set.
Peeling agent layer 4 can be by the remover using dimethyl polysiloxane as main component and with
The peeling agent layer 4 that the mixture of the antistatic additive that this remover does not reacts is formed.For with diformazan
For based polysiloxane is as the remover of main component and the mixed method of antistatic additive, the most especially
Restriction.Can use any one method in following mixed method: using dimethyl polysiloxane as
After interpolation antistatic additive mixes in the remover of main component, add remover solidification with catalyst also
The method mixed；Use organic solvent diluting using dimethyl polysiloxane as main component in advance
After remover, add antistatic additive and remover solidification catalyst the method mixed；In advance
After remover using polydimethylpolysiloxane as main component is diluted in organic solvent, add catalysis
Agent and mix, then, add antistatic additive the method etc. that mixed.It addition, as required,
The auxiliary of the adhesion promotors such as silane coupler, compound etc. containing polyoxyalkylene can also be added
The material of antistatic effect.
For the remover using dimethyl polysiloxane as main component and the blending ratio of antistatic additive
Speech, is not particularly limited, but relative to the remover using dimethyl polysiloxane as main component
Solid constituent 100, preferably antistatic additive is calculated as the ratio of 5～about 100 with solid constituent.Relative to
Using dimethyl polysiloxane as the solid constituent 100 of the remover of main component, if antistatic additive is with solid
The addition of body composition conversion is the ratio less than 5, then the antistatic additive transfer amount to adhesive layer surface
Also tail off, it is difficult to make adhesive layer play anlistatig function.It addition, relative to the poly-silica of dimethyl
Alkane is as the solid constituent 100 of the remover of main component, if antistatic additive is with adding that solid constituent converts
Dosage is the ratio more than 100, then using dimethyl polysiloxane as main component together with antistatic additive
Remover also can be transferred to adhesive layer surface, accordingly, it is possible to the bonding that can reduce adhesive layer is special
Property.
The present invention is formed on the base material film 1 of surface protection film 10 method and the laminating of adhesive layer 2
The method of stripping film 5, all can use known method to carry out, and there is no particular limitation.Specifically,
Can enumerate: the resin combination being used for being formed adhesive layer 2 is coated the one side of base material film 1 by (1)
Go up and be dried, the method for stripping film 5 of fitting after forming adhesive layer；(2) will be used for forming bonding
The resin combination of oxidant layer 2 is coated on stripping film 5 surface and is dried, after forming adhesive layer,
The method etc. of laminating base material film 1.Any one method therein can be used.
It addition, when adhesive layer 2 is formed at the surface of base material film 1, known method can be used
Carry out.Specifically, it is possible to use and reverse coating, comma coating, intaglio plate is coated with, slit extruding is coated with
Known coating process such as rod (Mayer bar) coating, airblade coating etc. strangled by cloth, wheat.
It addition, similarly, when peeling agent layer 4 is formed at resin molding 3, known side can be used
Method is carried out.Specifically, it is possible to use intaglio plate coating, wheat to strangle known to rod coating, airblade coating etc.
Coating process.
For the surface protection film of the present invention 10 with above-mentioned composition, use from the optics as adherend
Surface potential when peeling off on film is preferably+0.7kV～-0.7kV.Further, more preferably surface potential is
+ 0.5kV～-0.5kV, particularly preferred surface potential is+0.1kV～-0.1kV.This surface potential energy
Enough it is adjusted by the kind of antistatic additive contained in change peeling agent layer, addition etc..
Fig. 2 is the profile representing the state peeling stripping film from the surface protection film of the present invention.
By stripping film 5 is peeled from the surface protection film 10 shown in Fig. 1, the remover of stripping film 5
A part for layer antistatic additive (reference 7) contained by 4, is transferred (attachment) to surface protection
The surface of the adhesive layer 2 of film 10.Therefore, in fig. 2, with the speckle of reference 7 schematically
Illustrate the antistatic additive on adhesive layer 2 surface being transferred to surface protection film.By antistatic additive 7
Composition from stripping film 5 to the surface of adhesive layer 2 shift, with transfer before adhesive layer 2 compared with,
Stripping electrostatic pressure when peeling adhesive layer 2 from adherend can be reduced.Additionally, from adherend
On stripping electrostatic pressure when peeling adhesive layer, known method can be used to be measured.Such as, inciting somebody to action
After surface protection film fits in the adherend of Polarizer etc., use high speed electronic stripping tester (TESTER
Industry Co., Ltd (TESTER Sangyo Co., Ltd.) manufactures) with the peeling rate of 40m per minute
While peeling off surface protection film, use surface potential meter (Co., Ltd. Keyemce (Keyence
Corporation) manufacturing) every 10ms measures the surface potential on adherend surface, and by surface now
The maximum of current potential absolute value is measured as peeling off electrostatic pressure (kV).
For the surface protection film of the present invention, when the table by the state having peeled stripping film shown in Fig. 2
When surface protective film 11 fits in adherend, be transferred to the antistatic additive on this adhesive layer 2 surface with
Adherend surface contacts.By this operation, it is possible to suppress lower again to shell from adherend
Stripping electrostatic pressure during lower surface protecting film.
Fig. 3 is the profile of the embodiment of the optics representing the present invention.
Stripping film 5 is being peeled and state that adhesive layer 2 exposes on the surface protection film 10 of the present invention
Under, fitted in as on the optics 8 of adherend by this adhesive layer 2.
That is, figure 3 illustrates the optics 20 of the surface protection film 10 being fitted with the present invention.Make
For optics, Polarizer, polarizer, lens coating can be enumerated, be also used as the polarisation of polarizer
The optical films such as plate, the Polarizer being also used as lens coating.This optics, is used as LCD
The liquid crystal indicators such as plate, the component parts of optical system device etc. of various metrical instrument class.It addition,
As optics, it is also possible to enumerate the light such as antireflection film, hard coat film, touch panel nesa coating
Film.
Optics based on the present invention, when using surface protection film 10 from the optics as adherend
When (optical film) upper stripping is removed, it is possible to electrostatic pressure will be peeled off fully and suppress in low-level.Therefore,
Do not worry destroying the circuit block driving IC, TFT element, gate line drive circuit etc., it is possible to carry
The high production efficiency manufactured in the operations such as display panels, it is ensured that the reliability of production process.
Embodiment
Below, the present invention is further illustrated by embodiment.
(embodiment 1)
(manufacture of surface protection film)
By the addition reaction-type polysiloxanes of 5 weight portions, (name of product is the healthy and free from worry east of SRX-345, Tao Shi
Beautiful Co., Ltd. manufacture), the ethyl acetate solution of lithium perchlorate 10% of 7.5 weight portions, 95 weight portions
Toluene be the mixed solvent of 1:1 with ethyl acetate, (name of product is the platinum catalyst of 0.05 weight portion
SRX-212, Dow Corning Toray Co., Ltd manufactures) mix and be stirred mixing, preparation
For forming the coating of the peeling agent layer of embodiment 1.Use wheat to strangle rod, will be used for forming embodiment 1
The coating of peeling agent layer, in the way of making dried thickness become 0.2 μm, being coated on thickness is
The surface of the polyethylene terephthalate film of 38 μm, and dry in the heated air circulation type baker of 120 DEG C
Dry 1 minute, it is thus achieved that the stripping film of embodiment 1.On the other hand, the weight ratio with 100:4 is made third
Olefin(e) acid 2-Octyl Nitrite and acrylic acid 2-hydroxyl ethyl ester carry out copolymerization, weight average molecular weight be 470,000
Acrylate copolymer 30 weight portion, and be dissolved in the ethyl acetate of 70 weight portions obtain binding agent (Gu
Body component content is the ethyl acetate solution of 30%), relative to this binding agent of 100 weight portions, add
(name of product is Coronate (U ロ ネ ト) HX to the HDI class firming agent of 1.2 weight portions, day
This polyurethane industrial Co., Ltd. (Nippon Polyurethane Industry Co., Ltd.) manufactures) go forward side by side
Row mixes and forms baste, and is coated with in the way of making dried thickness become 20 μm by this baste
It is distributed in the surface of the polyethylene terephthalate film that thickness is 38 μm, then by the hot blast of 100 DEG C
Circulating oven drying 2 minutes, thus define adhesive layer.Then, on the surface of this adhesive layer,
Fit the peeling agent layer (polysiloxanes process face) of stripping film of embodiment 1 of above-mentioned manufacture.By institute
The adhesive film obtained is incubated 5 days in the environment of 40 DEG C, so that binding agent solidification, it is thus achieved that embodiment 1
Surface protection film.
(embodiment 2)
Except being coated with the remover for forming embodiment 1 in the way of becoming 0.1 μm by dried thickness
Beyond the coating of layer, operate similarly to Example 1, it is thus achieved that the surface protection film of embodiment 2.
(embodiment 3)
Except the addition reaction-type polysiloxanes as embodiment 1 uses Dow Corning Toray Co., Ltd's system
The SRX-211 (name of product) made, and use the acetic acid second of double (fluoroform sulphonyl) imine lithium 10%
Ester solution 10 weight portion replaces beyond ethyl acetate solution 7.5 weight portion of lithium perchlorate 10%, with reality
Execute example 1 similarly to operate, it is thus achieved that the surface protection film of embodiment 3.
(comparative example 1)
By the addition reaction-type polysiloxanes of 5 weight portions, (name of product is the healthy and free from worry east of SRX-345, Tao Shi
Beautiful Co., Ltd. manufactures), the toluene of 95 weight portions be the mixed solvent of 1:1,0.05 weight with ethyl acetate
Platinum catalyst (name of product is SRX-212, and the Dow Corning Toray Co., Ltd manufactures) mixing of amount part
Together and be stirred mixing, the coating of peeling agent layer for forming comparative example 1 has been prepared.Use
Wheat strangles rod, will be used for being formed the coating of the peeling agent layer of comparative example 1, so that dried thickness becomes
The mode of 0.2 μm is coated on the surface of the polyethylene terephthalate film that thickness is 38 μm, and
The heated air circulation type baker of 120 DEG C is dried 1 minute, it is thus achieved that the stripping film of comparative example 1.On the other hand,
Relative to the binding agent of the embodiment 1 of 100 weight portions (solid component content be 30% ethyl acetate molten
Liquid), add and be mixed with ethyl acetate solution 5 weight portion of lithium perchlorate 10%, HDI class firming agent
(name of product is Coronate HX, Nippon Polyurethane Industry Co., Ltd. manufacture) 1.2 weight portions and shape
Become baste, and this baste is coated thickness in the way of making dried thickness become 20 μm be
The surface of the polyethylene terephthalate film of 38 μm, then by the heated air circulation type baker of 100 DEG C
It is dried 2 minutes, thus defines adhesive layer.Then, on the surface of this adhesive layer, fitted on
State the peeling agent layer (polysiloxanes process face) of the stripping film of the comparative example 1 of manufacture.Obtained is glued
Conjunctiva is incubated 5 days in the environment of 40 DEG C, so that binding agent solidification, it is thus achieved that the surface of comparative example 1 is protected
Cuticula.
(comparative example 2)
In addition to using ethyl acetate solution 0.2 weight portion of lithium perchlorate 10%, same with comparative example 1
Operate, it is thus achieved that the surface protection film of comparative example 2 sample.
(embodiment 4)
By 2-EHA, butyl acrylate and acrylic acid 2-hydroxyl ethyl ester with the weight of 60:40:4
Ratio carries out the acrylate copolymer that weight average molecular weight is 480,000 30 weight portion of copolymerization, is dissolved in
The ethyl acetate of 70 weight portions is formed binding agent (solid component content is the ethyl acetate solution of 30%),
Add and mix the HDI class firming agent (product of 1.2 weight portions relative to this binding agent of 100 weight portions
Entitled Coronate HX, Nippon Polyurethane Industry Co., Ltd. manufactures) and obtain baste, using should
Baste replaces the baste of embodiment 1, in addition, operates similarly to Example 1,
Obtain the surface protection film of embodiment 4.
(embodiment 5)
By 2-EHA, methoxy poly (ethylene glycol) (400) methacrylate and acrylic acid 2-
Hydroxyl ethyl ester carries out the acrylate that weight average molecular weight is 380,000 of copolymerization altogether with the weight ratio of 90:10:4
Polymers 30 weight portion, is dissolved in the ethyl acetate of 70 weight portions formation binding agent (solid component content
It is the ethyl acetate solution of 30%), add relative to this binding agent of 100 weight portions and mix 1.2 weights
(name of product is Coronate HX to the HDI class firming agent of amount part, Nippon Polyurethane Industry Co., Ltd.
Manufacture) and obtain baste, use this baste to replace the baste of embodiment 1, in addition,
Operate similarly to Example 1, it is thus achieved that the surface protection film of embodiment 5.
(embodiment 6)
The weight average that 2-EHA and acrylic acid carry out copolymerization with the weight ratio of 100:4 is divided
Son amount is acrylate copolymer 30 weight portion of 520,000, is dissolved in shape in the ethyl acetate of 70 weight portions
Become binding agent (solid component content is the ethyl acetate solution of 30%), being somebody's turn to do relative to 100 weight portions
Binding agent add and mix 1.0 weight portions epoxies firming agent (name of product is TETRAD-C, three
Pedicellus et Pericarpium Trapae gas KCC (Mitsubishi Gas Chemical Company Inc.) manufactures) and obtain
Baste, uses this baste to replace the baste of embodiment 1, the most similarly to Example 1
Ground operates, it is thus achieved that the surface protection film of embodiment 6.
Below, it is shown that the method for evaluation test and result.
The assay method ＞ of the peeling force of ＜ stripping film
With width 50mm, the sample of the size cutting surfaces protecting film of length 150mm.At 23 DEG C
Under the experimental enviroment of × 50%RH, use cupping machine with the peeling rate of 300mm/ minute to 180 °
Stripping film is peeled in direction off, measures intensity now, and as the peeling force (N/50mm) of stripping film.
The assay method ＞ of the cohesive force of ＜ surface protection film
(AG-LR is inclined to use make-up machine Polarizer after glass pane surface has fitted anti-dazzle low reflection process
Tabula rasa).Then, after cutting into the surface protection film that width is 25mm and fit in the surface of Polarizer,
Keeping 1 day under the experimental enviroment of 23 DEG C × 50%RH.Then, use cupping machine with 300mm/
Minute peeling rate peel off surface protection film to 180 ° of directions, measure intensity now, and made
For cohesive force (N/25mm).
The assay method ＞ peeling off electrostatic pressure of ＜ surface protection film
(AG-LR is inclined to use make-up machine Polarizer after glass pane surface has fitted anti-dazzle low reflection process
Tabula rasa).Then, after cutting into the surface protection film that width is 25mm and fit in the surface of Polarizer,
Keeping 1 day under the experimental enviroment of 23 DEG C × 50%RH.Then, high speed electronic stripping tester is being used
(TESTER Industry Co., Ltd (TESTER Sangyo Co., Ltd.) manufacture) is with 40m per minute
Peeling rate peel off while surface protection film, use surface potential meter (Co., Ltd.'s Keyemce
(Keyence Corporation) manufactures) every 10ms measures the surface potential on aforementioned Polarizer surface, and
Using the maximum of surface potential absolute value now as peeling off electrostatic pressure (kV).
The confirmation method ＞ of the surface contamination of ＜ surface protection film
(AG-LR is inclined to use make-up machine Polarizer after glass pane surface has fitted anti-dazzle low reflection process
Tabula rasa).Then, after cutting into the surface protection film that width is 25mm and fit in the surface of Polarizer,
Keeping 3 days and 30 days under the experimental enviroment of 23 DEG C × 50%RH.Then, peel surface protection film,
By visual observations, Polarizer surface has pollution-free, it is thus identified that surface contamination.As surface contamination
Determinating reference, be judged to (zero) when pollution-free transfer on Polarizer, when confirming there is dirt on Polarizer
Be judged to during dye transfer (×).
To obtained embodiment 1～6 and the surface protection film of comparative example 1～2 be measured, and will survey
Determine result to be shown in table 1～2.Wherein, " 2EHA " refers to 2-EHA, " HEA "
Referring to acrylic acid-2-hydroxyl ethyl ester, " BA " refers to butyl acrylate, and " #400G " refers to the poly-second of methoxyl group
Glycol (400) methacrylate, " AA " refers to acrylic acid, " LiClO4" refer to lithium perchlorate,
“Li(CF3SO2)2N " refer to double (fluoroform sulphonyl) imine lithium.
Table 1
Table 2
According to the measurement result shown in Tables 1 and 2, it is known that following situation.
The surface protection film of embodiments of the invention 1～6 has suitable cohesive force, to adherend surface
Do not pollute, and stripping electrostatic when peeling off surface protection film from adherend forces down.
On the other hand, for adhesive layer with the addition of the surface protection film of the comparative example 1 of antistatic additive and
Speech, although stripping electrostatic when peeling off surface protection film from adherend forces down and good, but after peeling off
Pollution to adherend is many.It addition, in decreasing the comparative example 2 of amount of antistatic additive, though improve
Contaminative to adherend, but stripping electrostatic pressure when peeling off surface protection film from adherend is high.
That is, according to the comparative example 1,2 that antistatic additive is mixed in binding agent, it is difficult to have both stripping electrostatic
The reduction of pressure and the improvement to adherend contaminative.On the other hand, antistatic additive is being made an addition to stripping
It is transferred to after oxidant layer in the embodiment 1～6 on adhesive layer surface, has and can reduce stripping with few addition
From the effect of electrostatic pressure, therefore adherend is not the most polluted, it is thus achieved that good surface protection film.
Industrial applicibility
The surface protection film of the present invention, for instance, it is possible to be applied to Polarizer, polarizer, lens coating etc.
Optical film in, additionally, in the production process etc. of various opticses etc., fit in this optic
For protecting its surface on part etc..It addition, the surface protection film of the present invention, it is possible to reduce from being attached
The static content produced when peeling off on body, and, antistripping antistatic property is without deterioration (the most over time
Passage and deteriorate) and pollution to adherend few, it is possible to increase the yield rate of production process,
Industrial value is big.
Claims (5)
1. a surface protection film, at the one side of the base material film being made up of the resin with the transparency
It is formed with adhesive layer, and has fitted on described adhesive layer there is the stripping film of peeling agent layer,
Wherein,
Described stripping film is that stacking peeling agent layer forms on the one side of resin molding, described peeling agent layer
Containing the remover using dimethyl polysiloxane as main component and do not occur instead with this remover
The antistatic additive answered,
Described antistatic additive composition shifts from described stripping film to the surface of described adhesive layer, thus
By when adherend peels described adhesive layer surface potential reduce to+0.7kV～-
0.7kV,
Described antistatic additive is alkali metal salt.
2. surface protection film as claimed in claim 1, wherein, described antistatic additive be by sun from
Son and the alkali metal salt of anion composition, described cation is selected from by Li+、Na+、K+Composition
Cation group in any cation, described anion is selected from by Cl-、Br-、I-、BF4 -、
PF6 -、SCN-、ClO4 -、CF3SO3 -、(CF3SO2)2N-、(C2F5SO2)2N-、(CF3SO2)3C-
Any anion in the anion group of composition.
3. surface protection film as claimed in claim 1 or 2, wherein, described adhesive layer is to make
The crosslinking of (methyl) acrylate copolymer forms.
4. surface protection film as claimed in claim 1 or 2, wherein, shells from described adhesive layer
Peeling force when described stripping film is below 0.2N/50mm.
5. an optics, it is fitted with the surface according to any one of Claims 1 to 4 and protects
Cuticula.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-157064 | 2013-07-29 | ||
| JP2013157064A JP5852998B2 (en) | 2013-07-29 | 2013-07-29 | Surface protective film and optical component on which it is bonded |
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| Publication Number | Publication Date |
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| CN104342045A CN104342045A (en) | 2015-02-11 |
| CN104342045B true CN104342045B (en) | 2016-08-31 |
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| Country | Link |
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| JP (1) | JP5852998B2 (en) |
| KR (3) | KR101589083B1 (en) |
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| JP5853001B2 (en) * | 2013-08-13 | 2016-02-09 | 藤森工業株式会社 | Surface protective film and optical component on which it is bonded |
| JP5882266B2 (en) * | 2013-08-20 | 2016-03-09 | 藤森工業株式会社 | Surface protective film and optical component on which it is bonded |
| JP6338288B2 (en) * | 2015-03-25 | 2018-06-06 | 藤森工業株式会社 | Antistatic surface protective film and optical component on which it is bonded |
| JP6226904B2 (en) * | 2015-03-26 | 2017-11-08 | 藤森工業株式会社 | Surface protective film and optical component to which it is attached |
| JP6339515B2 (en) * | 2015-03-26 | 2018-06-06 | 藤森工業株式会社 | Surface protective film and optical component on which it is bonded |
| JP6414983B2 (en) * | 2015-09-10 | 2018-10-31 | 藤森工業株式会社 | Surface protective film and optical component on which it is bonded |
| JP6426071B2 (en) * | 2015-09-14 | 2018-11-21 | 藤森工業株式会社 | SURFACE PROTECTIVE FILM, AND OPTICAL COMPONENT WITH THE SAME |
| JP6382169B2 (en) * | 2015-09-14 | 2018-08-29 | 藤森工業株式会社 | Surface protective film and optical component on which it is bonded |
| JP2017081010A (en) * | 2015-10-28 | 2017-05-18 | 藤森工業株式会社 | Antistatic surface protective film |
| JP6076517B2 (en) * | 2016-02-02 | 2017-02-08 | 藤森工業株式会社 | Release film for antistatic surface protection film |
| JP6392798B2 (en) * | 2016-02-16 | 2018-09-19 | 藤森工業株式会社 | Surface protective film and optical component on which it is bonded |
| JP2017144608A (en) * | 2016-02-16 | 2017-08-24 | 藤森工業株式会社 | Surface protective film and optical component laminated with the same |
| JP6566568B2 (en) * | 2016-02-29 | 2019-08-28 | 藤森工業株式会社 | Method for producing antistatic surface protective film |
| JP2017190406A (en) * | 2016-04-14 | 2017-10-19 | 日東電工株式会社 | Adhesive sheet |
| CN106079954B (en) * | 2016-06-12 | 2018-09-07 | 贵州劲嘉新型包装材料有限公司 | A kind of PET transfer membranes utilization process |
| JP6366199B2 (en) * | 2016-06-30 | 2018-08-01 | 日東電工株式会社 | Reinforcing film with separator |
| JP6366200B2 (en) | 2016-06-30 | 2018-08-01 | 日東電工株式会社 | Reinforcing film with separator |
| JP6959779B2 (en) * | 2017-07-18 | 2021-11-05 | 日本カーバイド工業株式会社 | Adhesive composition for protective film and protective film |
| JP6558814B2 (en) * | 2018-03-22 | 2019-08-14 | 藤森工業株式会社 | Method for producing antistatic surface protective film |
| JP6529203B2 (en) * | 2018-05-10 | 2019-06-12 | 藤森工業株式会社 | Release film for antistatic surface protection film |
| JP6566590B2 (en) * | 2018-07-30 | 2019-08-28 | 藤森工業株式会社 | Surface protective film and optical component on which it is bonded |
| JP6562488B2 (en) * | 2018-10-23 | 2019-08-21 | 藤森工業株式会社 | Surface protective film and optical component on which it is bonded |
| JP7108576B2 (en) * | 2019-04-23 | 2022-07-28 | 藤森工業株式会社 | Antistatic surface protection film for optical films |
| JP6864044B2 (en) * | 2019-07-10 | 2021-04-21 | 藤森工業株式会社 | Release film for antistatic surface protection film |
| JP6761885B2 (en) * | 2019-07-26 | 2020-09-30 | 藤森工業株式会社 | Manufacturing method of antistatic surface protective film |
| JP2021006404A (en) * | 2020-09-02 | 2021-01-21 | 藤森工業株式会社 | Antistatic surface protective film |
| JP2022033915A (en) * | 2020-09-02 | 2022-03-02 | 藤森工業株式会社 | Antistatic surface protective film |
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| JPH1044336A (en) * | 1996-08-08 | 1998-02-17 | Toray Ind Inc | Mold releasing film |
| JP2003038695A (en) * | 2001-07-31 | 2003-02-12 | Sanyo Electric Co Ltd | Motor-driven vehicle |
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| JP4279118B2 (en) * | 2003-10-30 | 2009-06-17 | 藤森工業株式会社 | Surface protective film and optical component on which it is adhered |
| JP3912686B2 (en) | 2004-04-19 | 2007-05-09 | 日東電工株式会社 | Adhesive composition, adhesive layer, and surface protective film |
| JP2005314476A (en) | 2004-04-27 | 2005-11-10 | Nitto Denko Corp | Adhesive composition, adhesive sheet and surface-protective film |
| JP4799900B2 (en) | 2004-10-28 | 2011-10-26 | 日東電工株式会社 | Adhesive composition, adhesive sheet and surface protective film |
| JP4611084B2 (en) * | 2005-03-31 | 2011-01-12 | リンテック株式会社 | Release film |
| TWI418929B (en) * | 2005-12-26 | 2013-12-11 | Kimoto Kk | Surface protection film |
| KR100836177B1 (en) * | 2007-03-16 | 2008-06-09 | 도레이새한 주식회사 | Antistatic silicone release coating films |
| JP5130768B2 (en) * | 2007-03-30 | 2013-01-30 | 大日本印刷株式会社 | Protective film for optical member, method for producing protective film for optical member, and protective film raw material for optical member |
| JP5126525B2 (en) * | 2008-07-10 | 2013-01-23 | 東洋紡株式会社 | Release film |
| JP5406615B2 (en) * | 2009-07-15 | 2014-02-05 | 日東電工株式会社 | Transparent film and surface protective film using the film |
| JP2011178828A (en) * | 2010-02-26 | 2011-09-15 | Marubishi Oil Chem Co Ltd | Antistatic release agent composition |
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| KR20150014363A (en) | 2015-02-06 |
| TW201505828A (en) | 2015-02-16 |
| KR20160014746A (en) | 2016-02-11 |
| CN104342045A (en) | 2015-02-11 |
| KR101643175B1 (en) | 2016-07-27 |
| JP5852998B2 (en) | 2016-02-09 |
| JP2015024630A (en) | 2015-02-05 |
| TWI641485B (en) | 2018-11-21 |
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| KR20160046780A (en) | 2016-04-29 |
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