WO2009125672A1 - 粘着剤組成物、表面保護フィルム、及び、フラットパネルディスプレイ用マザーガラス表面保護フィルム - Google Patents
粘着剤組成物、表面保護フィルム、及び、フラットパネルディスプレイ用マザーガラス表面保護フィルム Download PDFInfo
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- WO2009125672A1 WO2009125672A1 PCT/JP2009/055956 JP2009055956W WO2009125672A1 WO 2009125672 A1 WO2009125672 A1 WO 2009125672A1 JP 2009055956 W JP2009055956 W JP 2009055956W WO 2009125672 A1 WO2009125672 A1 WO 2009125672A1
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- protective film
- surface protective
- adhesive composition
- sensitive adhesive
- pressure
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- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J201/00—Adhesives based on unspecified macromolecular compounds
- C09J201/005—Dendritic macromolecules
-
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
-
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
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- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
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- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
Definitions
- the present invention relates to an adhesive composition. More specifically, the present invention relates to a pressure-sensitive adhesive layer using the same and a mother glass surface protective film for a flat panel display using the same.
- Glass substrates are used to manufacture flat panel displays such as liquid crystal displays, plasma display panels, and organic EL displays. Glass plates manufactured at the factory are distributed (carried) as mother glass, which is used as glass substrates. Processed. If the glass surface is damaged during transportation or storage of the mother glass, further transportation with shipping, or storage at the customer, it may cause a decrease in yield and adversely affect the quality. A protective film is attached.
- Mother glass for flat panel displays with a surface protective film attached is delivered to a panel manufacturer, where the work to peel off the surface protective film is performed, but if the peeling is heavy (hard to peel), workability deteriorates. However, when peeling is incomplete, a problem of peeling failure occurs.
- the residue of the surface protective film is washed and removed using a cleaning solution or the like, but there is also a problem that the residue is difficult to fall off the glass surface.
- the residue resulting from the surface protective film causes problems such as deterioration of quality during the manufacturing process of the TFT substrate, and there is a demand for improved cleaning and removal of the residue in the cleaning process.
- Patent Document 1 discloses that the surface of a base material layer made of polyethylene contains 50% by weight or more of low density polyethylene having a density of 0.91 to 0.93 g / cm 3 , and has a center line average roughness.
- a surface protective film in which an adhesive layer having an Ra of 0.05 ⁇ m or less is laminated has been proposed.
- Patent Document 1 has problems such as heavy peeling after application of glass and poor workability, and residue that adheres (transferred) to glass is difficult to be removed by washing. Yes.
- Patent Document 2 discloses a two-layer film in which an adhesive layer composed of an ethylene / vinyl acetate copolymer is formed on one surface of a base material layer composed of a thermoplastic resin, and Patent Document 3 describes one surface of a base material layer. Furthermore, an adhesive tape for surface protection comprising an acrylic adhesive comprising a copolymer of butyl acrylate and acrylic acid and an adhesive layer crosslinked with an aromatic isocyanate as a crosslinking agent is disclosed.
- the purpose of the present invention is to easily attach the surface protective film to the glass surface in order to eliminate the above-mentioned problems in the conventional surface protective film (sheet), and then after peeling the surface protective film,
- a pressure-sensitive adhesive composition capable of easily washing and removing residues resulting from a surface protective film (a pressure-sensitive adhesive layer therein), a pressure-sensitive adhesive layer, and a mother glass surface protective film for a flat panel display using these. There is.
- the present inventors have found the following pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, and a mother glass surface protective film for flat panel displays using these, and completed the present invention. It came to do.
- the pressure-sensitive adhesive composition of the present invention is characterized by containing 0.01 to 2 parts by weight of an alkylene oxide group-containing compound with respect to 100 parts by weight of a thermoplastic resin.
- a thermoplastic resin By adding the alkylene oxide group-containing compound together with the thermoplastic resin, when this is used as the pressure-sensitive adhesive layer of the surface protective film, the details are not clear, but it becomes easy to stick to the glass surface, and the surface protective film ( The residue can be reduced by replacing the residue resulting from the pressure-sensitive adhesive layer), for example, the low molecular weight compound resulting from the pressure-sensitive adhesive layer and the alkylene oxide group-containing compound. Furthermore, the residue can be easily washed and removed in the washing step after the surface protective film is peeled off, which is useful.
- the alkylene oxide group-containing compound is preferably a surfactant.
- a surfactant By adding a surfactant, when this is used as a pressure-sensitive adhesive layer of a surface protective film, the details are not clear, but it becomes easy to attach to the glass surface, and the surface protective film (the pressure-sensitive adhesive layer inside)
- the residue resulting from the above, for example, the low molecular weight compound resulting from the pressure-sensitive adhesive layer and the surfactant are replaced, and the residue can be reduced. Further, even in the cleaning step after the surface protective film is peeled off, the residue can be easily cleaned and removed by the addition of a surfactant, which is useful.
- the surface protective film of the present invention is preferably formed using the pressure-sensitive adhesive composition.
- the surface protective film obtained using the pressure-sensitive adhesive composition is useful because it can be easily processed into a film shape, a sheet shape, a tape shape or the like.
- the mother glass surface protective film for a flat panel display of the present invention preferably comprises a single layer formed using the pressure-sensitive adhesive composition. Since the single layer itself formed using the pressure-sensitive adhesive composition functions as a mother glass surface protective film for a flat panel display, the number of manufacturing steps is small and the workability is excellent.
- the mother glass surface protective film for a flat panel display of the present invention is preferably formed by forming the pressure-sensitive adhesive composition on one or both sides of a substrate.
- a mother glass surface protective film for flat panel displays formed using a pressure-sensitive adhesive composition on a substrate the surface of the adherend (glass) can be protected from contamination, and scratches can be prevented. Is useful. *
- the “mother glass for flat panel display” refers to a glass plate that can be placed in circulation before being processed into various products, and is used for manufacturing a flat panel display.
- the flat panel display include display devices such as a liquid crystal display, a plasma display panel, and an organic EL display.
- the pressure-sensitive adhesive composition of the present invention is characterized by containing 0.01 to 2 parts by weight of an alkylene oxide group-containing compound with respect to 100 parts by weight of a thermoplastic resin.
- thermoplastic resin is used as the base polymer of the pressure-sensitive adhesive composition used in the present invention.
- thermoplastic resin any thermoplastic resin that exhibits adhesiveness can be used as appropriate.
- polyethylene resin examples include low density polyethylene, linear low density polyethylene, polypropylene, poly-1-butene, poly-4-methyl-1-pentene, ethylene / propylene copolymer, and ethylene / 1-butene.
- Copolymer ethylene / 1-hexene copolymer, ethylene-4-methyl-1-pentene copolymer, ethylene / 1-octene copolymer, ethylene / methyl acrylate copolymer, ethylene / methyl methacrylate copolymer
- polyolefin resins such as polymers, ethylene / vinyl acetate copolymers, ethylene / ethyl acrylate copolymers, and ethylene / vinyl alcohol copolymers.
- polystyrene resin examples include A-types such as styrene / butadiene (SB), styrene / isoprene (SI), styrene / ethylene-butylene copolymer (SEB), and styrene / ethylene / propylene copolymer (SEP).
- SB styrene / butadiene
- SI styrene / isoprene
- SEB styrene / ethylene-butylene copolymer
- SEP styrene / ethylene / propylene copolymer
- B-type diblock polymer styrene / butadiene / styrene (SBS), styrene / isoprene / styrene (SIS), styrene / ethylene-butylene copolymer / styrene (SEBS), styrene / ethylene / propylene copolymer / styrene (SEPS) ABA type triblock or ABAB type tetrablock or higher multiblock polymer such as styrene) random copolymer such as styrene / butadiene rubber (SBR), styrene / ethylene-butylene copolymer Polymer / olefin crystal (SEBC A-B-C type styrene-olefin crystalline block polymers, such as and the like.
- SEBC styrene / butadiene / styrene
- the density when using the polyethylene resin, preferably a low density polyethylene resin the density is 0.880 ⁇ 0.950g / cm 3, to be 0.880 ⁇ 0.923g / cm 3 More preferably, it is 0.880 to 0.915 g / cm 3 .
- the low-density polyethylene-based resin is excellent in flexibility and practical.
- the density (g / cm ⁇ 3 >) in this invention means the value measured based on ISO1183.
- the pressure-sensitive adhesive composition of the present invention contains 0.01 to 2 parts by weight, preferably 0.05 to 1.5 parts by weight, of an alkylene oxide group-containing compound with respect to 100 parts by weight of the thermoplastic resin.
- the amount is preferably 0.1 to 1 part by weight.
- the amount is less than 0.01 part by weight, the residue removal performance in the washing step is deteriorated.
- the amount exceeds 2 parts by weight, a molding defect may be caused during the production of the surface protective film (when extrusion molding).
- the fluidity with the thermoplastic resin becomes non-uniform, resulting in poor molding. Further, even if the film is formed, it is necessary to use a larger amount of the cleaning liquid when removing the residue with the cleaning liquid used in the cleaning step, which is not preferable in terms of cost.
- alkylene oxide group-containing compound examples include ethylene glycol, propylene glycol, butylene glycol, glycol salicylate, propylene glycol monofatty acid ester, polyoxyethylene / polyoxypropylene glycol, polyoxyalkylene decyl ether, polyoxyethylene styryl phenyl ether, polyoxyethylene Oxyethylene alkyl ether, polyoxyethylene lauryl ether, polyoxyethylene lanolin alcohol ether, polyoxyethylene alkylamine ether, polyoxyethylene (2) lauric acid monoethanolamide, polyoxyethylene (5) coconut oil fatty acid monoethanolamide, Sodium polyoxyethylene lauryl sulfate, polyoxyethylene sorbitan fatty acid ester, sol Fatty acid ester, polyoxyethylene castor oil, polyoxyethylene Takakata castor oil, may be used compounds such as polyoxyethylene lanolin fatty acid esters.
- the said compound is used as an emulsifier, a dispersing agent, a lubricant, a suspension agent, an anticorrosive agent, surfactant, an antistatic agent etc., and it is preferable that it is surfactant especially.
- the surfactant is not particularly limited as long as it is an alkylene oxide group-containing compound.
- the ether-based compound include polyoxyethylene / polyoxypropylene glycol, polyoxyalkylene decyl ether, polyoxyethylene. Ethylene styryl phenyl ether, polyoxyethylene alkyl ether, polyoxyethylene lauryl ether, polyoxyethylene lanolin alcohol ether, and polyoxyethylene alkylamine ether are preferred.
- the amide-based compound polyoxyethylene (2) lauric acid monoethanolamide, polyoxyethylene (5) coconut oil fatty acid monoethanolamide, sodium polyoxyethylene lauryl sulfate and the like are preferable.
- the ester-based compound is preferably polyoxyethylene sorbitan fatty acid ester, sorbitan fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hardened castor oil, polyoxyethylene lanolin fatty acid ester or the like.
- the adhesive layer used in the surface protective film of the present invention has various known softeners, tackifiers, olefinic resins that can be used in the base material layer, silicone for the purpose of controlling adhesive properties, etc.
- Polymer liquid acrylic copolymer, phosphate ester compound, anti-aging agent, hindered amine light stabilizer, UV absorber, surface lubricant, leveling agent, plasticizer, low molecular weight polymer, antioxidant, corrosion prevention Agent, polymerization inhibitor, silane coupling agent, inorganic and organic fillers (for example, calcium oxide, magnesium oxide, silica, zinc oxide, titanium oxide, etc.), powders such as metal powders, colorants, pigments, particulates
- various conventionally known additives such as foils and heat stabilizers can be appropriately added depending on the use.
- the pressure-sensitive adhesive layer can be produced by melting and heating the pressure-sensitive adhesive composition.
- the pressure-sensitive adhesive layer obtained by melting and heating the pressure-sensitive adhesive composition can be easily processed into a film shape, a sheet shape, a tape shape or the like, and is useful.
- the surface of the pressure-sensitive adhesive layer requires surface treatment for the purpose of adhesiveness control and pasting workability, such as corona discharge treatment, ultraviolet irradiation treatment, flame treatment, plasma treatment and sputter etching treatment. It can also be applied accordingly.
- a separator or the like can be temporarily attached to the pressure-sensitive adhesive layer as needed until it is put to practical use.
- the thickness of the pressure-sensitive adhesive layer is usually about 1 to 50 ⁇ m, preferably 2 to 40 ⁇ m, more preferably 3 to 20 ⁇ m.
- the thickness is less than 1 ⁇ m, it becomes difficult to exert adhesiveness, and when it exceeds 50 ⁇ m, peeling becomes difficult or the amount of the alkylene oxide group-containing compound added to the pressure-sensitive adhesive layer increases. This is not preferable because it is disadvantageous.
- a surface protective film particularly a mother glass surface protective film for a flat panel display can be produced. Since the pressure-sensitive adhesive layer itself functions as a surface protective film, the production process is few and useful.
- the adhesive layer can be formed on one or both sides of the substrate to form a mother glass surface protective film for flat panel displays.
- a surface protective film having a pressure-sensitive adhesive layer formed on a substrate the surface of the adherend (glass) can be protected from contamination, and the occurrence of scratches and the like can be prevented, which is useful.
- the substrate (layer) used in the present invention is not particularly limited as long as it can be formed into a sheet shape, a film shape, a tape shape, etc.
- it is a polyolefin-based resin, it has heat resistance and solvent resistance. It is preferable because it has flexibility and flexibility.
- the base material layer has flexibility, it can be wound into a roll and various processes can be appropriately performed.
- polystyrene resin examples include polyethylene resin, propylene or propylene resin composed of a propylene component and an ethylene component, and ethylene vinyl acetate copolymer.
- low density polyethylene linear low density polyethylene, polypropylene, poly-1-butene, poly-4-methyl-1-pentene, ethylene / propylene copolymer, ethylene / 1-butene copolymer Copolymer, ethylene / 1-hexene copolymer, ethylene / 4-methyl-1-pentene copolymer, ethylene / 1-octene copolymer, ethylene / methyl acrylate copolymer, ethylene / methyl methacrylate copolymer
- polyolefin resins such as ethylene / vinyl acetate copolymer, ethylene / ethyl acrylate copolymer, and ethylene / vinyl alcohol copolymer.
- the base material layer may appropriately contain various known additives generally used for base materials such as this type of film, sheet, and tape.
- various fillers, pigments, ultraviolet absorbers, antioxidants, heat stabilizers, lubricants and the like can be mentioned.
- the thickness of the substrate layer is usually preferably about 20 to 300 ⁇ m, more preferably about 20 to 250 ⁇ m, and still more preferably about 25 to 200 ⁇ m. If the substrate layer is less than 20 ⁇ m, the substrate may be torn or torn during peeling, and if it exceeds 300 ⁇ m, the stiffness of the substrate becomes large, and floating or the like tends to occur after sticking.
- the base layer side of the surface protective film may be embossed or concavo-convex for giving hand cutting properties and slip resistance.
- the base material layer made of polyolefin resin and the material constituting the pressure-sensitive adhesive layer made of thermoplastic resin are melt-heated and co-extruded to form the base material layer.
- a method for producing a film of a two-layer structure (or a multilayer of three or more layers) having a predetermined thickness by integrally forming a pressure-sensitive adhesive layer on one side or both sides is highly efficient and inexpensive. Is preferable in that it can be produced.
- coextrusion molding a method generally used for production of a film, a sheet or the like can be adopted, and it is not particularly limited.
- an inflation method, a coextrusion T-die method, or the like can be used.
- Use of these coextrusion moldings is preferable in terms of cost and productivity.
- the number of layers to be laminated in each of the layers is not particularly limited, and the base material layer and the pressure-sensitive adhesive layer may each be a single layer, or a laminated structure of a plurality of layers as necessary. It is good.
- the total thickness of the surface protective film of the present invention is preferably 20 to 150 ⁇ m, more preferably about 30 to 100 ⁇ m.
- the total thickness is less than 20 ⁇ m, workability at the time of peeling is poor and problems such as tearing tend to occur, and when it exceeds 150 ⁇ m, the problem of floating after pasting and disadvantages in cost are undesirable.
- peeling force After applying a surface protective film to mother glass for liquid crystal substrates (NH Techno Glass, NA35), press bonding (0.2 MPa, 1.0 m / min), storing at 23 ° C. for 1 day, tensile test
- the peel force (N / 20 mm) when the surface protective film was peeled was measured with a machine (Minebea, TCM-5KNB-3, tensile speed 0.3 m / min, angle 180 °).
- the peeling force is preferably 0.02 N / 20 mm or less, and more preferably 0.015 N / 20 mm or less. Further, the peeling force is preferably 0.001 N / 20 mm or more from the viewpoint of adhesion and a measurement limit value with a testing machine. When the peeling force is high, the peeling workability deteriorates, and the residue resulting from the surface protective film tends to increase.
- Cleaning effect (cleaning rate) was calculated by the following formula.
- the cleaning effect is preferably 65% or more, more preferably 70% or more. If the cleaning effect is less than 65%, it causes unsatisfactory peeling due to residue, which is not preferable.
- Cleaning effect (cleaning rate) (%) 100 ⁇ [(contact angle before cleaning ⁇ contact angle after cleaning) / (contact angle before cleaning)]
- Molding conditions Molding was performed by an inflation method in each of the examples (excluding Example 10) and the comparative example.
- the melting temperature was set to 180 ° C. for the base material layer and the pressure-sensitive adhesive layer, the die temperature and the coextrusion temperature.
- the melting temperature was set to 190 ° C. for both the extruder temperature and the die temperature.
- Base material layer (thickness: 26 ⁇ m) composed of low density polyethylene (LDPE) (manufactured by Tosoh Corporation, Petrocene 183) and linear low density polyethylene (LLDPE) (Sumitomo Chemical, Sumikasen EFV402) 100 parts by weight , Using an adhesive layer (thickness: 4 ⁇ m) containing 0.06 part by weight of polyoxyethylene / polyoxypropylene glycol (Daiichi Kogyo Seiyaku Co., Ltd., Epan 485) by an inflation method using the above molding conditions A two-layer surface protective film (thickness: 30 ⁇ m) was obtained.
- LDPE low density polyethylene
- LLDPE linear low density polyethylene
- Example 2 A surface protective film (thickness: 30 ⁇ m) was obtained in the same manner as in Example 1 except that the amount of polyoxyethylene / polyoxypropylene glycol added was 0.36 parts by weight.
- Example 3 A surface protective film (thickness: 30 ⁇ m) was obtained in the same manner as in Example 1 except that the amount of polyoxyethylene / polyoxypropylene glycol added was 0.6 parts by weight.
- Example 4 A surface protective film (thickness: 30 ⁇ m) was obtained in the same manner as in Example 1 except that the amount of polyoxyethylene / polyoxypropylene glycol added was 0.9 parts by weight.
- Example 5 Polyoxygen with respect to 100 parts by weight of a base layer (thickness: 26 ⁇ m) made of low density polyethylene (LDPE) (manufactured by Tosoh Corporation, Petrocene 183) and linear low density polyethylene (prime polymer, Evolve SP1540).
- LDPE low density polyethylene
- primary polymer primary polymer
- lauric acid monoethanolamide manufactured by Kawaken Fine Chemicals, amidette 2L-Y
- Example 6 Example except that 0.18 parts by weight of polyoxyalkylene decyl ether (Daiichi Kogyo Seiyaku, Neugen XL-400) was added in place of the polyoxyethylene (2) lauric acid monoethanolamide of Example 5. 5 was used to obtain a surface protective film (thickness: 30 ⁇ m).
- Example 7 A base layer (thickness: 26 ⁇ m) made of low density polyethylene (LDPE) (manufactured by Tosoh Corporation, Petrocene 183), and 50 parts by weight of linear low density polyethylene (prime polymer, Evolve SP1540) and linear low density Contains 0.06 parts by weight of polyoxyethylene styryl phenyl ether (Daiichi Kogyo Seiyaku, Neugen EA-177) with respect to a total of 100 parts by weight of polyethylene (LLDPE) (Sumitomo Chemical, Sumikasen EFV402) Using a pressure-sensitive adhesive layer (thickness: 4 ⁇ m), a two-layer surface protective film (thickness: 30 ⁇ m) was obtained by an inflation method using the above molding conditions.
- LDPE low density polyethylene
- PE linear low density polyethylene
- LLDPE linear low density polyethylene
- Example 8 A surface protective film (thickness: 30 ⁇ m) was obtained in the same manner as in Example 7 except that the amount of polyoxyethylene styryl phenyl ether added was 0.18 parts by weight.
- Example 9 A surface protective film (thickness: 30 ⁇ m) was obtained in the same manner as in Example 7 except that the amount of polyoxyethylene styryl phenyl ether added was 0.36 parts by weight.
- Example 10 Contains 1.2 parts by weight of polyoxyethylene / polyoxypropylene glycol (Daiichi Kogyo Seiyaku, Epan 485) per 100 parts by weight of ethylene / vinyl alcohol copolymer (EVA) (manufactured by JPE, Novatec LV440) A single-layer surface protective film (thickness: 35 ⁇ m) was obtained by a T-die method using a single adhesive layer.
- EVA ethylene / vinyl alcohol copolymer
- Example 11 Base material layer (thickness: 26 ⁇ m) made of ethylene / vinyl alcohol copolymer (EVA) (manufactured by JPE, Novatec LV440), and styrene-ethylene / butylene-ethylene block copolymer (SEBC) (manufactured by JSR, DYNARON 4600P)
- EVA ethylene / vinyl alcohol copolymer
- SEBC styrene-ethylene / butylene-ethylene block copolymer
- JSR DYNARON 4600P
- a two-layer surface protective film (thickness: 30 ⁇ m) was obtained by the inflation method used.
- a base material layer (thickness: 26 ⁇ m) made of low-density polyethylene (LDPE) (manufactured by Tosoh Corporation, Petrocene 183), and an adhesive layer made of linear low-density polyethylene (LLDPE) (Sumitomo Chemical, Sumikasen EFV402) (Thickness: 4 ⁇ m) was used to obtain a two-layer surface protection film (thickness: 30 ⁇ m) by an inflation method using the above molding conditions.
- LDPE low-density polyethylene
- LLDPE linear low-density polyethylene
- a base material layer (thickness: 26 ⁇ m) made of low density polyethylene (LDPE) (manufactured by Tosoh Corporation, Petrocene 183), and an adhesive layer made of ethylene / vinyl alcohol copolymer (EVA) (manufactured by JPE, Novatec LV440) (Thickness: 4 ⁇ m) was used to obtain a two-layer surface protection film (thickness: 30 ⁇ m) by an inflation method using the above molding conditions.
- LDPE low density polyethylene
- EVA ethylene / vinyl alcohol copolymer
- the surface protective film had a poor film formation and had a large thickness variation, and the characteristics could not be evaluated.
- a possible cause of film formation is that the content of the polyoxyethylene styryl phenyl ether is excessive, and the fluidity with the thermoplastic resin becomes non-uniform.
- A polyoxyethylene / polyoxypropylene glycol
- B polyoxyethylene (2) lauric acid monoethanolamide
- C polyoxyalkylene decyl ether
- D polyoxyethylene styryl phenyl ether.
- the surface protective film of the present invention can be easily peeled off after the surface protective film is pasted on the glass surface, and then the residue resulting from the surface protective film can be easily washed and removed. It was confirmed that
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- Organic Chemistry (AREA)
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- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
- Liquid Crystal (AREA)
Abstract
Description
液晶基板用マザーガラス(NHテクノグラス製、NA35)に表面保護フィルムを貼付後、圧着(0.2MPa、1.0m/分)して、23℃で1日間保管し、引張試験機(ミネベア社製、TCM-5KNB-3、引張速度0.3m/分、角度180°)で表面保護フィルムを剥離した時の剥離力(N/20mm)を測定した。なお、剥離力は0.02N/20mm以下が好ましく、0.015N/20mm以下がより好ましい。また、剥離力としては、密着性、試験機での測定限界値の観点から、0.001N/20mm以上が好ましい。剥離力が高い場合、剥離作業性が悪化し、表面保護フィルムに起因する残渣物が増加しやすい。
ガラス(NHテクノグラス製、NA35)に表面保護フィルムを貼付後、圧着(0.2MPa、1.0m/分)し、40℃×4日間経過後、洗浄前の接触角を測定し、その後、前記ガラス表面を、無機アルカリ洗浄剤(横浜油脂工業製、KG)2.0%水溶液を用いて超音波洗浄を2分間行い、更に蒸留水により3分間リンスした。)し、洗浄後の接触角を測定した。
洗浄効果(洗浄率)は次式により計算した。なお、洗浄効果は65%以上が好ましく、より好ましくは70%以上である。洗浄効果が65%未満であると、残渣物による剥離不良の原因となるため、好ましくない。
洗浄効果(洗浄率)(%)=100×[(洗浄前の接触角-洗浄後の接触角)/(洗浄前の接触角)]
各実施例(実施例10を除く)、比較例において、インフレーション法によって成形した。なお、溶融温度は、基材層および粘着剤層、ダイス温度および共押出温度すべて180℃に設定した。また、実施例10においては、Tダイ法により成形した。溶融温度は押出機温度、ダイス温度共に190℃に設定した。
低密度ポリエチレン(LDPE)(東ソー社製、ペトロセン 183)からなる基材層(厚さ:26μm)、及び直鎖状低密度ポリエチレン(LLDPE)(住友化学製、スミカセン EFV402)100重量部に対して、ポリオキシエチレン・ポリオキシプロピレングリコール(第一工業製薬社製、エパン485)0.06重量部を含有する粘着剤層(厚さ:4μm)を用いて、前記成形条件を用いたインフレーション法により、2層構造の表面保護フィルム(厚さ:30μm)を得た。
ポリオキシエチレン・ポリオキシプロピレングリコールの添加量を0.36重量部にしたこと以外は、実施例1と同様の方法で、表面保護フィルム(厚さ:30μm)を得た。
ポリオキシエチレン・ポリオキシプロピレングリコールの添加量を0.6重量部にしたこと以外は、実施例1と同様の方法で、表面保護フィルム(厚さ:30μm)を得た。
ポリオキシエチレン・ポリオキシプロピレングリコールの添加量を0.9重量部にしたこと以外は、実施例1と同様の方法で、表面保護フィルム(厚さ:30μm)を得た。
低密度ポリエチレン(LDPE)(東ソー社製、ペトロセン 183)からなる基材層(厚さ:26μm)、及び直鎖状低密度ポリエチレン(プライムポリマー製、エボリューSP1540)100重量部に対して、ポリオキシエチレン(2)ラウリン酸モノエタノールアミド(川研ファインケミカル製、アミゼット2L-Y)0.06重量部を含有する粘着剤層(厚さ:4μm)を用いて、前記成形条件を用いたインフレーション法により、2層構造の表面保護フィルム(厚さ:30μm)を得た。
実施例5のポリオキシエチレン(2)ラウリン酸モノエタノールアミドの代わりに、ポリオキシアルキレンデシルエーテル(第一工業製薬製、ノイゲンXL-400)を0.18重量部添加したこと以外は、実施例5と同様の方法で、表面保護フィルム(厚さ:30μm)を得た。
低密度ポリエチレン(LDPE)(東ソー社製、ペトロセン 183)からなる基材層(厚さ:26μm)、及び直鎖状低密度ポリエチレン(プライムポリマー製、エボリューSP1540)50重量部及び直鎖状低密度ポリエチレン(LLDPE)(住友化学製、スミカセン EFV402)50重量部の合計100重量部に対して、ポリオキシエチレンスチリルフェニルエーテル(第一工業製薬製、ノイゲンEA-177)0.06重量部を含有する粘着剤層(厚さ:4μm)を用いて、前記成形条件を用いたインフレーション法により、2層構造の表面保護フィルム(厚さ:30μm)を得た。
ポリオキシエチレンスチリルフェニルエーテルの添加量を0.18重量部にしたこと以外は、実施例7と同様の方法で、表面保護フィルム(厚さ:30μm)を得た。
ポリオキシエチレンスチリルフェニルエーテルの添加量を0.36重量部にしたこと以外は、実施例7と同様の方法で、表面保護フィルム(厚さ:30μm)を得た。
エチレン・ビニルアルコール共重合体(EVA)(JPE製、ノバテックLV440)100重量部に対して、ポリオキシエチレン・ポリオキシプロピレングリコール(第一工業製薬製、エパン485)1.2重量部を含有する粘着剤層の単一層を用いて、Tダイ法により、単一構造の表面保護フィルム(厚さ:35μm)を得た。
エチレン・ビニルアルコール共重合体(EVA)(JPE製、ノバテックLV440)からなる基材層(厚さ:26μm)、及びスチレン-エチレン・ブチレン-エチレンブロック共重合体(SEBC)(JSR製、DYNARON4600P)100重量部に対して、ポリオキシエチレン・ポリオキシプロピレングリコール(第一工業製薬製、エパン485)1.8重量部を含有する粘着剤層(厚さ:4μm)を用いて、前記成形条件を用いたインフレーション法により、2層構造の表面保護フィルム(厚さ:30μm)を得た。
低密度ポリエチレン(LDPE)(東ソー社製、ペトロセン 183)からなる基材層(厚さ:26μm)、及び直鎖状低密度ポリエチレン(LLDPE)(住友化学製、スミカセン EFV402)からなる粘着剤層(厚さ:4μm)を用いて、前記成形条件を用いたインフレーション法により、2層構造の表面保護フィルム(厚さ:30μm)を得た。
低密度ポリエチレン(LDPE)(東ソー社製、ペトロセン 183)からなる基材層(厚さ:26μm)、及びエチレン・ビニルアルコール共重合体(EVA)(JPE製、ノバテックLV440)からなる粘着剤層(厚さ:4μm)を用いて、前記成形条件を用いたインフレーション法により、2層構造の表面保護フィルム(厚さ:30μm)を得た。
低密度ポリエチレン(LDPE)(東ソー社製、ペトロセン 183)からなる基材層(厚さ:26μm)の片面に、ブチレンアクリレイト94重量部とアクリル酸6重量部、イソシアネート系架橋剤(日本ポリウレタン製、コロネートL)30重量部を重合してなる粘着剤溶液を塗布して粘着剤層(厚さ:4μm)を形成することにより、2層構造の表面保護フィルム(厚さ:30μm)を得た。
低密度ポリエチレン(LDPE)(東ソー社製、ペトロセン 183)からなる基材層(厚さ:26μm)の片面に、直鎖状低密度ポリエチレン(LLDPE)(プライムポリマー社製、エボリューSP1540)50重量部、及び直鎖状低密度ポリエチレン(LLDPE)(住友化学製、スミカセン EFV402)50重量部に対して、ポリオキシエチレンスチリルフェニルエーテル(第一工業製薬社製、ノイゲンEA-17 7)2.5重量部を含有する粘着剤層(厚さ:4μm)を用いて、前記成形条件を用いたインフレーション法により、2層構造の表面保護フィルム(厚さ:30μm)を得た。但し、この表面保護フィルムについては、製膜不良が発生し、厚さのバラツキも大きく、特性の評価を行うことができなかった。製膜不良の原因としては、前記ポリオキシエチレンスチリルフェニルエーテルの含有量が過剰であるため、熱可塑性樹脂との流動性が不均一となることが考えられる。
Claims (5)
- 熱可塑性樹脂100重量部に対して、アルキレンオキサイド基含有化合物を0.01~2重量部含有してなることを特徴とする粘着剤組成物。
- 前記アルキレンオキサイド基含有化合物が、界面活性剤であることを特徴とする請求項1記載の粘着剤組成物。
- 請求項1又は2記載の粘着剤組成物を用いてなることを特徴とする表面保護フィルム。
- 請求項1又は2記載の粘着剤組成物を用いて形成した単一の層からなることを特徴とするフラットパネルディスプレイ用マザーガラス表面保護フィルム。
- 請求項1又は2記載の粘着剤組成物を、基材の片面または両面に形成してなることを特徴とするフラットパネルディスプレイ用マザーガラス表面保護フィルム。
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CN102585720A (zh) * | 2011-01-06 | 2012-07-18 | 日东电工株式会社 | 表面保护片 |
WO2012169480A1 (ja) * | 2011-06-10 | 2012-12-13 | 住友化学株式会社 | 水性接着剤及び積層構造 |
WO2012169482A1 (ja) * | 2011-06-10 | 2012-12-13 | 住友化学株式会社 | 水性接着剤及び積層構造 |
WO2012169481A1 (ja) * | 2011-06-10 | 2012-12-13 | 住友化学株式会社 | 水性接着剤及び積層構造 |
WO2012169479A1 (ja) * | 2011-06-10 | 2012-12-13 | 住友化学株式会社 | 水性接着剤及び積層構造 |
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JP5582726B2 (ja) * | 2008-06-05 | 2014-09-03 | 日東電工株式会社 | 保護シートおよびその利用 |
JP2012054006A (ja) * | 2010-08-31 | 2012-03-15 | Gunze Ltd | 透明導電性ガスバリヤフィルム及びその製造方法 |
KR101123268B1 (ko) * | 2012-01-06 | 2012-03-21 | 주식회사 아이.엠.텍 | 대면적 글래스에 부착되는 필름 주름제거장치 |
CN107207330B (zh) | 2014-11-28 | 2020-06-09 | 康宁股份有限公司 | 生产具有形状的玻璃制品的方法 |
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WO2012169480A1 (ja) * | 2011-06-10 | 2012-12-13 | 住友化学株式会社 | 水性接着剤及び積層構造 |
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WO2012169479A1 (ja) * | 2011-06-10 | 2012-12-13 | 住友化学株式会社 | 水性接着剤及び積層構造 |
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TWI434909B (zh) | 2014-04-21 |
JP5592615B2 (ja) | 2014-09-17 |
KR101553090B1 (ko) | 2015-09-14 |
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CN101970593B (zh) | 2015-09-02 |
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