WO2011112642A2 - Film stratifié pour fixation à une fenêtre - Google Patents

Film stratifié pour fixation à une fenêtre Download PDF

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Publication number
WO2011112642A2
WO2011112642A2 PCT/US2011/027631 US2011027631W WO2011112642A2 WO 2011112642 A2 WO2011112642 A2 WO 2011112642A2 US 2011027631 W US2011027631 W US 2011027631W WO 2011112642 A2 WO2011112642 A2 WO 2011112642A2
Authority
WO
WIPO (PCT)
Prior art keywords
layer
window
approximately
silicone rubber
laminate film
Prior art date
Application number
PCT/US2011/027631
Other languages
English (en)
Other versions
WO2011112642A3 (fr
Inventor
Shigeyoshi Ishii
Yorinobu Takamatsu
Original Assignee
3M Innovative Properties Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Company filed Critical 3M Innovative Properties Company
Priority to KR1020127026059A priority Critical patent/KR20130038217A/ko
Priority to AU2011224464A priority patent/AU2011224464B2/en
Priority to SG2012066361A priority patent/SG183953A1/en
Priority to NZ602297A priority patent/NZ602297A/en
Priority to CN2011800222764A priority patent/CN102869500A/zh
Publication of WO2011112642A2 publication Critical patent/WO2011112642A2/fr
Publication of WO2011112642A3 publication Critical patent/WO2011112642A3/fr

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Classifications

    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone rubber
    • 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
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/243—Coating
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • 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
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/14—Corona, ionisation, electrical discharge, plasma treatment
    • 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
    • B32B2319/00—Synthetic rubber
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation

Definitions

  • the present invention relates to a laminate film with a plastic film layer and a silicone rubber layer for attaching to a window made of glass or acrylic or the like.
  • Films for attaching to windows are used on building windows or the like in order to shield sunlight and to prevent shattering of glass. Recently, there are films that can shield infrared light or the like and experience minimal color change due to sunlight, and films for attaching to windows that have an adhesive that can be applied to window glass and then peeled off without leaving adhesive residue.
  • Japanese Unexamined Patent Application Publication No. HI 0-250004 discloses a film for attaching to a window wherein a coating layer containing a film forming resin primarily containing an acrylic-based resin (A) and a saturated polyester-based resin (B) and 5 to 40 weight parts of an ultraviolet light absorber (C) in 100 weight parts of the film forming resin is formed on one surface of a biaxially oriented polyester film, and an adhesive layer is formed on the other surface.
  • Japanese Unexamined Patent Application Publication No. 2000-96009 discloses a laminate film for attaching to a window containing an adhesive layer (B) on at least one surface of a plastic film (A), wherein the properties when the surface of the adhesive layer side of the laminate film is overlaid on a glass plate satisfy all of the following conditions:
  • the ordinary adhesive strength is 300 g/cm or higher
  • the adhesive strength is 20% or more of the normal adhesive strength after having been applied to a glass plate after water spraying for 6 hours;
  • the number of adhesive residue spots with a size of 1 mm 2 or larger that adheres onto the glass plate is 1 or lower per 100 cm 2 .
  • Japanese Unexamined Patent Application Publication No. 2000-117918 discloses a heat ray reflective film suitable for outdoor use, containing a laminate film with a biaxially oriented polyester film with weather resisting properties as a base material (A), a heat ray reflective layer (B) on at least one surface of the base material, and a surface protective layer (C), wherein the visible light transmissivity of the laminate film is 50% or higher, the near infrared reflectivity is 50% or higher, and the haze value is 5% or less.
  • window films suffer from certain drawbacks and shortcomings.
  • known adhesive films for a glass window have sufficient adhesion to the window glass in order to provide a function of preventing shattering of window glass, so peeling from the glass was not possible, or peeling could not be performed without using a special chemical agent, and therefore handling was difficult.
  • applying the film without leaving air bubbles and removing the film without leaving adhesive is difficult for a standard consumer because of the high adhesive strength required for the function of preventing shattering of the window glass or the like.
  • the present invention provides a laminate film for applying to a window that can easily be made to apply to a window of a building or the like by a standard consumer that is not a specialist or the like, such as a do-it-yourself end-user, where gas bubbles can easily be removed by rubbing the film with a finger or the like even if gas bubbles occur during application, that can easily be peeled from the window without leaving an residue or marks, and that has high weather resistance.
  • the present inventors have discovered that the aforementioned problems can be resolved by providing a laminate film that can be secured to the window without having adhesion or tackiness, and thus the present invention was achieved.
  • the present invention provides a laminate film for applying to a window, containing a plastic film layer and a silicone rubber layer that has a surface that adsorbs to the window.
  • the silicone rubber layer in the laminate film secures or adsorbs to the window without adhesion or tackiness.
  • the laminate film can easily be removed from the window without silicone rubber layer adsorption residue or adsorption marks, and that has high weather resistance because of the use of a silicone rubber layer.
  • Adsorption means that an attached object is detachably integrated with the subject of attachment without adhesion or tackiness, and after removal of the attached object, the attached object does not experience cohesive failure.
  • Tackiness refers to pressure sensitive adhesion, and can be included in adhesion.
  • Transparent means that the light transmissivity is 90% or higher for visible light, or in other words in the wavelength range from 380 nm to 780 nm.
  • FIG. 1 shows a laminate film according to the present disclosure.
  • FIG. 2 shows a laminate film according to the present disclosure wherein a metal layer is provided on the silicone rubber layer side of the plastic film layer.
  • FIG. 3 shows a laminate film according to the present disclosure, wherein a printing layer is provided on the silicone rubber layer side of the plastic film layer.
  • FIG. 4 shows a laminate film according to the present disclosure, wherein a printing layer is provided on the opposite side as the silicone rubber layer side of the plastic film layer.
  • the laminate film for attaching to a window generally includes a plastic film layer with a layer a silicone rubber for securing the laminate film to a window.
  • the present disclosure provides a laminate film for attaching to a window containing a plastic film layer and a silicone rubber layer having a surface for securing or "adsorbing" to a window, wherein the laminate film further includes a metal layer laminated between the plastic film layer and the silicone rubber layer.
  • the laminate film does not have adhesion or tackiness, and therefore even if gas bubbles are trapped between the laminate film and the window, for example during the application process, the gas bubbles can easily be eliminated by rubbing with a finger or the like. Furthermore, the laminate film does not have adhesion or tackiness even when peeled from the window, and therefore a laminate film can be obtained that can be easily peeled from a window without leaving either residue of the silicone rubber layer or adsorption marks.
  • FIG. 1 is a cross section view of a laminate film for applying to a window according to one embodiment of the present disclosure.
  • a silicone rubber layer 2 with a window adsorption surface 21 is provided on one side of the plastic film layer 1, and can adsorb onto the window via the adsorption surface 21.
  • FIG. 2 is a cross section view of a laminate film for applying to a window according to a second embodiment of the invention.
  • the laminate film includes a metal layer 3 provided on the silicone rubber layer 2 side on the plastic film layer 1 , and then a silicone rubber layer 2 with a surface 21 for adsorbing to a window is provided thereon.
  • FIG. 3 is a cross sectional view of yet another laminate film for applying to a window according to the present disclosure.
  • a printing layer 4 is laminated onto the silicone rubber layer 2 side on the plastic film layer 1 , and then a silicone rubber layer 2 with a surface 21 for adsorbing to a window is laminated thereon.
  • FIG. 4 is a cross section view of yet another laminate film for applying to a window according to the present disclosure.
  • a silicone rubber layer 2 with a surface 21 for adsorbing to a window is laminated on one side of a plastic film layer 1 , and a printing layer 4 is laminated on the surface of the plastic film layer 1 on the opposite side as the silicone rubber layer 2.
  • the silicone rubber layer of the present invention is not particularly restricted, and any commonly known silicone rubber can be used.
  • any commonly known silicone rubber can be used.
  • a silicone rubber layer obtained by blending a silicone main component containing reactive polydimethylsiloxane or the like with a cross-linking agent in the presence of a catalyst and hardening on a plastic film layer is used, sufficient adhesive force will be present between the plastic film layer and the silicone rubber layer, and the silicone rubber layer can easily be obtained.
  • the weighted average molecular weight of the silicone main component is not particularly restricted, and can be approximately 50,000 or higher, approximately 100,000 or higher, approximately 200,000 or higher, or approximately 300,000 or higher, and can be approximately 2 million or lower, approximately 1 million or lower, approximately 500,000 or lower, or approximately 400,000 or lower. In one embodiment, the weighted average molecular weight of the silicone main component may be approximately 300,000 or higher and approximately 500,000 or lower, for ease of application.
  • the molar weight of the cross-linking agent that is used for 1 mol of reactive groups in the silicone main component, or in other words terminal hydroxyl groups for condensation type, vinyl groups for additive type, and terminal amino groups for silicone polyurea type, is not particularly restricted so long as the adsorption is not hindered after hardening, but the molar weight can be approximately 0.5 or higher, approximately 1.0 or higher, or approximately 1.5 or higher, and approximately 3.0 or lower, or approximately 2.0 or lower.
  • the molar weight of the cross-linking agent for one mole of silicone main component is preferably from approximately 0.5 to approximately 3.0 for the condensation type and the additive type, and from approximately 0.5 to approximately 1.5 for the silicone polyurea type, in order to prevent unreacted residual silicone main component and cross-linking agent and the like from remaining after hardening.
  • the molar weight of the cross-linking agent for 1 mol of silicone main component is preferably approximately 1.0, as this is the stoichiometric amount.
  • the degree of cross-linking between the silicone main component and the cross-linking agent can be expressed by the gel ratio of the silicone rubber layer after hardening, as described below in detail.
  • the silicone rubber layer contains a tackifier as described below, the gel ratio does not include the amount of tackifier added.
  • the gel ratio can be approximately 90% or higher, approximately 95% or higher, or approximately 98% or higher, and approximately 90% or higher is suitable because adsorption marks and the like will not remain on the surface of the glass after removing, and approximately 95% or higher is even more preferable.
  • a catalyst can be used in the cross-linking reaction between the silicone main components and the cross-linking agent.
  • the amount of catalyst to silicone main component and cross-linking agent can be approximately 0.0001% or higher, approximately 0.00015% or higher, or approximately 0.001% or higher; or can be approximately 3.0% or lower, approximately 2.0% or lower, or approximately 1.0% or lower, by weight, for the condensation type and the silicone polyurea type, and can be approximately 1.0 ppm or higher, approximately 2.0 ppm or higher, or approximately 5.0 ppm or higher, and approximately 100 ppm or lower, approximately 90 ppm or lower, or approximately 80 ppm or lower, by weight, for the additive type.
  • the amount of catalyst in the silicone main component and the cross-linking agent is suitably from 0.0001 to 3.0% by weight for the condensation type or the silicone polyurea type, and from 1 to 100 ppm for the additive type, and so long as the reaction proceeds sufficiently, there is no change over time, and the properties of the silicone rubber layer are not lost after hardening.
  • the silicone rubber layer will adsorb, or bond, to any window material such as glass or plastic or the like, and when applied to glass being used as window glass and measured as a laminate film for attaching to a window, the silicone rubber layer can have an adsorbent force of approximately 0.01 N/m or higher, approximately 0.05 N/m or higher, or approximately 0.1 N/m or higher as measured in a 90° peel test performed accordance with JIS K6854-1 standards as described below in the measurement details. On the other hand, the silicone rubber layer can have an adsorbent force of approximately 15 N/m or lower, approximately 10 N/m or lower, or approximately 5 N/m or lower.
  • the thickness of the silicone rubber layer is not particularly restricted so long as peeling or the like does not occur due to its own weight after adsorbing, and the thickness after hardening can be approximately 30 um or lower, approximately 25 ⁇ or lower, or approximately 20 ⁇ or lower, but on the other hand, in order to form a smooth silicone rubber layer on a surface with waves or ridges and valleys, the thickness can be approximately 2.0 um or higher, approximately 3.0 ⁇ or higher, or approximately 5.0 ⁇ or higher.
  • the silicone rubber layer basically does not contain other additives, but the additives described in the following sections on the plastic film layer and the metal layer may be optionally included if desired.
  • the silicone rubber layer of the present invention essentially does not contain a tackifier known to one skilled in the art, or in other words, essentially does not contain a substance that increases anchor effect and following properties to intricate surfaces of glass by reducing the modulus of elasticity at room temperature, for example.
  • a tackifier that is commonly used can be added without restrictions in particular so long as the weather resistance and the adsorbing properties of the silicone rubber layer are not lost.
  • MQ resin can be suggested as a tackifier.
  • MQ resins have a structure with R3SiO-(M unit) and Si0 4 -(Q unit) in the molecule for example, and is normally a solid resin with a weighted average molecular weight from 10,000 to 15,000, and from 0.7 to 1.1 mol of M units are used for 1 mol of Q units.
  • the MQ resin can be used by blending and dissolving in the silicone main component or the like, and then hardening.
  • the amount of tackifier in the silicone rubber layer of the present invention can be approximately 15% or less, approximately 10%> or less, or approximately 5% or less, by weight, and can be approximately 0.1% or higher, or approximately 1% or higher.
  • commercially available standard adhesives are known to normally contain 50 weight% or more of tackifiers such as MQ resins.
  • the thickness and adhesive strength and the like of the silicone rubber can be adjusted to the range shown in the section on the silicone rubber layer without the aforementioned tackifier.
  • the silicone rubber layer is protected by a protective sheet or liner, or the like as shown below in order to prevent material such as dust and scraps from adhering, and thus the silicone rubber layer can adsorb favorably to the window.
  • a protective sheet or liner, or the like as shown below in order to prevent material such as dust and scraps from adhering, and thus the silicone rubber layer can adsorb favorably to the window.
  • the material of the plastic film layer of the present invention is not particularly restricted, and for example, can be a film made of polyester, polyamide, polyolefm, polyvinyl chloride, polycarbonate, acrylic-based resin, or fluorine-based resin, or the like.
  • the structure of the plastic film layer can be a laminate structure with an arbitrary number of layers formed by coextruding or the like in order to suppress the reflectivity if necessary.
  • polyester, polycarbonate, acrylic-based resins, and polyolefms are suitable from the perspective of transparency, dimensional stability, and economics and the like. More particularly, a polyester film is suitable from the perspective of transparency, economics, weather resistance, heat resistance, and mechanical properties and the like.
  • the polyester film is not particularly restricted, and depending on the application, can be a uniaxially stretched polyester film, biaxially stretched polyester film, or an unstretched polyester film or the like.
  • the thickness of the plastic film layer is not particularly restricted so long as there are no problems with the flexibility or the like, and the thickness can be approximately 200 ⁇ or lower, approximately 100 ⁇ or lower, or approximately 50 ⁇ or lower, and can be approximately 10 ⁇ or higher, approximately 20 ⁇ or higher, or approximately 30 ⁇ or higher.
  • the thickness of the plastic film layer is suitably approximately 30 ⁇ or higher and approximately 100 ⁇ or lower, because the handling will be easy when adsorbing to the window.
  • the plastic film layer may contain without restriction in particular antistatic agents, stabilizers, lubricants, cross-linking agents, anti-blocking agents, antioxidants, ultraviolet light absorbers, infrared light absorbers, light blocking agents, colorants to provide design or the like, and slip agents in order to enhance handling during processes such as vapor deposition or the like.
  • the infrared light and ultraviolet light transmissivity of the plastic film layer can be reduced without reducing the visible light transmissivity by the combined use of an infrared light absorber and an ultraviolet light absorber. Furthermore, it is also possible to combine an infrared light absorber and an ultraviolet light absorber with a laminate structure plastic film layer that reduces the surface reflectivity for example, in order to increase the visible light transmissivity while decreasing only the infrared light and ultraviolet light transmissivity.
  • the laminate film of the present invention can have a metal layer and/or metal compound layer in order to reflect infrared light, ultraviolet light, and visible light and the like on at least one surface of the plastic film layer.
  • a metal layer When a metal layer is used, the transmissivity will be flat in all regions from infrared light to ultraviolet light, and having absorption of a specific wavelength is commonly known, so a wide range of various types of metal layers can be used, for example, depending on the application.
  • the metal compound that forms the metal layer can be a metal such as Au, Ag, Cu, or Al or the like, or an alloy. Aluminum and alloys thereof are preferable from the perspective of cost and reflectivity.
  • commonly known ITO a blend of several % of indium oxide and tin oxide
  • two or more types of metal substances can be used in combination.
  • an anti-rust coating layer can be provided on the opposite side as the plastic film layer side of the metal layer, in order to prevent oxidation of the metal layer.
  • the light transmissivity of the metal layer can be approximately 1% or higher, approximately 10% or higher, or approximately 20% or higher, and can be approximately 90% or lower, approximately 80% or lower, or approximately 60% or lower, but normally a range of 25% to 35% or 35% to 50% is suitable.
  • the processing method of the metal layer is not particularly restricted, and for example can be performed by a commonly used method for producing thin metal films, such as a vapor deposition method, spattering method, or plasma CVD method or the like. Furthermore, metal foil lamination can also be used if necessary to provide styling or the like.
  • the laminate film can contain one layer or a plurality of layers of printing layers either on the silicone rubber layer side and/or the opposite side of the plastic film layer in order to provide decoration as shown in FIG. 3 and FIG. 4.
  • the printing layer can be formed by a commonly known method such as screen printing, gravure printing, offset printing, ink jet printing, or electrostatic painting or the like. Screen printing can be used from the perspective of using a large variety of commercially available weather resistant inks. If the printing layer is suitably located between the plastic and the metal layer, then color loss due to abrasion will be minimal.
  • the printing layer is provided on the opposite side as the silicone rubber layer, for example, then printing can be performed immediately before applying the laminate film to the window, and freely printing or decorating with advertisements or product pricing or the like in a timely manner can be performed.
  • a colorant can be included in order to form patterns or the like in the plastic film layer.
  • the entire laminate film can have a visible light transmissivity of approximately 10% or higher, approximately 30% or higher, or approximately 40% or higher, and can have a visible light transmissivity of approximately 99.9% or lower, approximately 90% or lower, approximately 80% or lower, or approximately 60% or lower.
  • the laminate film can have a coating layer between the silicone rubber layer and the plastic layer or the like in order to increase the adhesive strength between the silicone rubber layer and the plastic layer and the like. Furthermore, chemical processing or electric discharge processing can be performed on the plastic film layer or the like before application in order to improve the compatibility or adhesion between the silicone rubber layer and the plastic film layer and the like.
  • a scratch resistant layer and/or a dirt prevention layer may be provided the outermost layer of the plastic film layer and the printing layer or the like on the plastic film layer.
  • the resin that forms the scratch resistant layer and/or dirt prevention layer can be a thermoplastic resin or a thermoset resin with excellent weather resistance applied for example by the aforementioned methods or the like on to the silicone rubber layer, and examples of these resins include fluorine resin, acrylic resin, polyvinyl alcohol resin, epoxy resin, unsaturated polyester resin, urethane resin, melamine resin, silicone resin, and acrylic silicone resin and the like.
  • the scratch resistant layer and/or dirt prevention layer can be a plastic film layer with a scratch resistant layer and/or dirt preventing layer provided on the surface beforehand instead of providing by application.
  • a protective sheet may be laminated onto the adsorbing surface of the silicone rubber layer. In the storage condition of the laminate film that is applied to windows, the adsorbing surface is protected so that dust and scraps or the like will not easily adhere, and thus a dust preventing or dirt preventing function or the like is provided.
  • the protective sheet is not particularly restricted, and can be commercially available PET or PP or the like as a standard product having a thickness that will not cause problems with flexibility or the like.
  • the silicone rubber layer of the present invention is an adsorbing layer
  • the protective sheet is not particularly required to have properties such as peeling properties, so instead of using a protective sheet, the outermost layer itself, e.g. the plastic film layer or the like, can be used as the protective sheet by rolling the laminate film itself into a rolled condition.
  • the method of processing the silicone rubber layer can be a commonly known method as described above.
  • the silicone main component and the hardening agent can easily be formed on the plastic film layer using a catalyst by hardening either at room temperature or with heating.
  • the silicone rubber can be applied to the plastic film layer in arbitrary steps. If the viscosity of the silicone main component is high, the viscosity can be adjusted using a soluble organic solvent that is commonly used such as ethyl acetate or toluene or the like, without restrictions in particular, so long as a negative effect is not caused by a reaction between the silicone main component and the cross-linking agent.
  • a soluble organic solvent that is commonly used such as ethyl acetate or toluene or the like
  • the method of applying the silicone solution containing the silicone main component, cross-linking agent, and catalyst can be any commonly known method, such as a rod coating method, comma knife coating method, roll coating method, blade coating method, spray coating method, air knife coating method, dip coating method, kiss coating method, bar coating method, die coating method, reverse roll coating method, offset gravure coating method, Mayer bar coating method, gravure coating method, reverse gravure coating method, roll brush method, impregnation method, spin coating method, and curtain coating method and the like, and these methods can be used individually or in combination.
  • a rod coating method comma knife coating method, roll coating method, blade coating method, spray coating method, air knife coating method, dip coating method, kiss coating method, bar coating method, die coating method, reverse roll coating method, offset gravure coating method, Mayer bar coating method, gravure coating method, reverse gravure coating method, roll brush method, impregnation method, spin coating method, and curtain coating method and the like, and these methods can be used individually or in combination.
  • a physical surface treatment such as flame treatment, corona discharge treatment, or plasma discharge treatment or the like can be performed on the surface of the plastic film layer as a pretreatment in order to increase the adhesion and application properties, or the adhesion between the silicone rubber layer and the plastic film layer can be strengthened by applying primer or the like.
  • silicone solution containing the silicone main component, cross-linking agent, and catalyst can be performed by applying directly to the film using one of the aforementioned application methods, or can first be applied to the protective sheet, and after drying to a certain degree, overlaying the protective sheet and the plastic film layer together such that the silicone rubber layer adheres to the plastic film layer.
  • the hardening temperature and hardening time are preferably such that sufficient hardening of the silicone rubber can be achieved.
  • Measurement of laminate film 90° peel performed in accordance with JIS K6854-1 standards. Specifically, the laminate film cut to a rectangle 200 mm long and 25 mm wide was made to adsorb onto a clean glass plate for windows with the same dimensions as the laminate film at room temperature and room humidity, and then a 2 kg rubber roller was moved back-and-forth one cycle thereon in order to make the entire surface of the laminate film adhere.
  • the sample was mounted in a tensile tester (manufacturer's name: Orientec Co., Ltd., product number: RTG-1225), and one end of the laminate film was pulled in a 90° direction from the film surface at a speed of 50 mm per minute, and the average value of 5 tensile tests was taken as the adsorption force or the adhesion force.
  • a tensile tester manufactured by Orientec Co., Ltd., product number: RTG-1225
  • Object for adsorbing In the present embodiment, glass for windows with a size larger than the sample (dimensions: 220 mm square, thickness: 3 mm, manufacturer's name: Asahi Glass Co. Ltd., product number: FL3) and acrylic for windows (dimensions: 220 mm square, thickness 3 mm, manufacturer's name: Mitsubishi Rayon Co., Ltd., model: Acryllite) was used.
  • Tackifier As the tackifier, MQ resin (manufacturer's name: Dow Corning Toray, model number: BY15-701A) was used.
  • Laminate film manufacturing method At room temperature and room humidity, silicone main components (Dow Corning Toray, SD7226 (30 weight% solution of silicone resin in toluene)), cross-linking agent containing catalyst for hardening silicone (Dow Corning Toray, SRX 212), and ethyl acetate (Godo Co., Ltd, industrial grade) as a diluting agent for ease of coating were blended at a ratio of 100:0.6: 100 (weight ratio) to obtain a 15 weight% silicone coating solution.
  • silicone main components Dow Corning Toray, SD7226 (30 weight% solution of silicone resin in toluene)
  • cross-linking agent containing catalyst for hardening silicone Dow Corning Toray, SRX 212
  • ethyl acetate Godo Co., Ltd, industrial grade
  • this solution was placed in a solvent coater and applied onto the plastic film layer at a coating speed of 30 m/minute, for 10 minutes at 100 °C, while evaporating off the solvent and hardening to obtain a laminate film with a silicone rubber layer.
  • a protective sheet was applied onto the silicone rubber layer (30 ⁇ thick OPP (Toray Co., Ltd, Trefane 30-2500)). The laminate film with protective sheet attached was cut to 200 mm x 200 mm and 25 mm x 200 mm for use in the peel test.
  • Scotchtint (registered trademark) manufactured by 3M, part number: RE87CLIS. Film with metal oxide coated onto a PET surface, commercially available product for preventing shattering of glass with a sunlight shielding function with an acrylic-based adhesive layer to which an ultraviolet light absorber has been added, on a metal oxide layer. This film had an adhesive strength of 500 N/m in the 90° peel test, the gel ratio was 95%, and the visible light transmissivity was 85%.
  • Scotchtint (registered trademark) manufactured by 3M, model number: RE80CLIS. Manufactured similar to RE87CLIS. This film is a commercial product for preventing glass shattering with a sunlight reflection shielding function and a visible light transmissivity of 81 %.
  • Scotchtint (registered trademark) manufactured by 3M, model number: RE 18 SI AR. Film with aluminum vapor deposited onto a PET surface. A commercially available product for preventing shattering of glass with a sunlight shielding function with visible light transmissivity of 18%, with an acrylic-based adhesive layer to which an ultraviolet light absorber has been added, on an Al vapor deposited film. This film had an adhesive strength of 500 N/m in a 90° peel test, and the gel ratio was 95%>.
  • a 50 ⁇ thick PET film (Lumilar 50 S10 (Toray Co., Ltd.) was used as the plastic film layer, and laminate films with a silicone rubber layer with a thickness of 1.4 ⁇ , 2.0 ⁇ , 2.5 ⁇ , 5.0 ⁇ , 25 ⁇ , 30 ⁇ m, and 35 ⁇ were used.
  • These laminate films had adsorption strengths of 0.3 N/m, 0.3 N/m, 0.3 N/m, 0.4 N/m, 0.7 N/m, 0.7 N/m, and 0.7 N/m, respectively, and the gel ratios were essentially equal for all samples at 95%.
  • a sample with dimensions of 200 mm square was made to adsorb to a glass window, and a thermometer was placed 10 cm away from the test sample at the center region of the test sample in an environment at 20°C and room relative humidity and left under sunlight for 15 min. When the temperature was measured, the temperature was 22 °C.
  • a laminate film was obtained by the same procedures as working example 1, except that the thickness of the silicone rubber layer was 5 ⁇ and a tackifier was added to make 10%, 15%, or 20% by weight during manufacturing. These laminate films had the same gel ratio as a working example 1 , and in the 90° field test, demonstrated adsorption force of 12 N/m, 18 N/m, and 20 N/m, respectively.
  • an applying and peeling test was performed on acrylic windows and glass windows similar to working example 1, favorable results were obtained similar to working example 1 in the samples containing 10 weight % and 15 weight % of a tackifier, but adhesion marks were visually confirmed with the 20 weight %> sample.
  • thermometer was placed 10 cm away from a window at the center of a window in a room temperature of 20°C and room humidity environment without attaching a laminate film for attaching to a window to a glass window, and after setting under sunlight for 15 minutes, the temperature was measured by the same procedure as working example 1. The temperature was 36°C.
  • thermometer was placed in a position 10 cm away from the test sample at the center of the test sample in an environment at a room temperature of 20°C and room humidity, and after leaving under sunlight for 15 min., the temperature was measured by the same procedures as a working example 1.
  • the temperatures for A) RE87CLIS and B) RE80CLIS which have infrared light absorbing layers were 34°C and 32°C, respectively, and the temperature for RE18SIAR, which has an infrared absorbing layer, was 24°C.
  • the laminate film for attaching to a window according to the present aspects shown in the working examples could easily adsorb onto a window, and not only provided favorable adsorption and peeling properties, but after peeling, there was an excellent effect in that the silicone rubber layer did not remain and there were no adsorption marks.

Landscapes

  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne un film stratifié pour fixation sur une surface, telle qu'une fenêtre. Ce film comprend une couche de film plastique et une couche de caoutchouc silicone ayant une surface adsorbante qui se lie à la fenêtre.
PCT/US2011/027631 2010-03-10 2011-03-09 Film stratifié pour fixation à une fenêtre WO2011112642A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020127026059A KR20130038217A (ko) 2010-03-10 2011-03-09 윈도우에 부착하기 위한 라미네이트 필름
AU2011224464A AU2011224464B2 (en) 2010-03-10 2011-03-09 Laminate film for attaching to a window
SG2012066361A SG183953A1 (en) 2010-03-10 2011-03-09 Laminate film for attaching to a window
NZ602297A NZ602297A (en) 2010-03-10 2011-03-09 Laminate film for attaching to a window
CN2011800222764A CN102869500A (zh) 2010-03-10 2011-03-09 用于附加到窗的层合物膜

Applications Claiming Priority (2)

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JP2010-053343 2010-03-10
JP2010053343A JP5702072B2 (ja) 2010-03-10 2010-03-10 窓貼り用積層フィルム

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WO2011112642A2 true WO2011112642A2 (fr) 2011-09-15
WO2011112642A3 WO2011112642A3 (fr) 2012-01-19

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JP (1) JP5702072B2 (fr)
KR (1) KR20130038217A (fr)
CN (1) CN102869500A (fr)
AU (1) AU2011224464B2 (fr)
NZ (1) NZ602297A (fr)
SG (1) SG183953A1 (fr)
WO (1) WO2011112642A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
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WO2013101685A1 (fr) * 2011-12-27 2013-07-04 3M Innovative Properties Company Film stratifié à attacher à une fenêtre, son procédé de fabrication et son procédé d'application
AU2012275496B2 (en) * 2011-06-30 2014-11-13 3M Innovative Properties Company Laminate window film having micro through holes

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JP2015140373A (ja) * 2014-01-28 2015-08-03 フジコピアン株式会社 吸着フィルム
JP2015140375A (ja) * 2014-01-28 2015-08-03 フジコピアン株式会社 吸着フィルム
CN109722175A (zh) * 2017-10-27 2019-05-07 浙江省化工研究院有限公司 一种乙烯三氟氯乙烯共聚物保护膜

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US5925453A (en) * 1996-03-19 1999-07-20 Lintec Corporation Window film
US6132882A (en) * 1996-12-16 2000-10-17 3M Innovative Properties Company Damped glass and plastic laminates
US7517583B2 (en) * 2003-09-17 2009-04-14 Central Glass Company, Limited Laminated glass
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US20090181242A1 (en) * 2008-01-11 2009-07-16 Enniss James P Exterior window film

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AU2012275496B2 (en) * 2011-06-30 2014-11-13 3M Innovative Properties Company Laminate window film having micro through holes
WO2013101685A1 (fr) * 2011-12-27 2013-07-04 3M Innovative Properties Company Film stratifié à attacher à une fenêtre, son procédé de fabrication et son procédé d'application

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Publication number Publication date
KR20130038217A (ko) 2013-04-17
JP2011183742A (ja) 2011-09-22
NZ602297A (en) 2014-04-30
WO2011112642A3 (fr) 2012-01-19
AU2011224464A1 (en) 2012-09-27
AU2011224464B2 (en) 2014-02-27
JP5702072B2 (ja) 2015-04-15
SG183953A1 (en) 2012-10-30
CN102869500A (zh) 2013-01-09

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