CN103254819A - Surface protection sheet - Google Patents
Surface protection sheet Download PDFInfo
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- CN103254819A CN103254819A CN2012100362183A CN201210036218A CN103254819A CN 103254819 A CN103254819 A CN 103254819A CN 2012100362183 A CN2012100362183 A CN 2012100362183A CN 201210036218 A CN201210036218 A CN 201210036218A CN 103254819 A CN103254819 A CN 103254819A
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Abstract
The invention provides a surface protection sheet. The surface protection sheet includes a substrate layer and an adhesive layer, wherein the appearance and the touch sense of the surface protection sheet are not damaged even inherent foreign matters are in the outmost surface layer of the substrate layer. The surface protection sheet includes the substrate layer and the adhesive layer, the substrate layer and the adhesive layer undergo co-extrusion molding to form one, the surface roughness Ra of the outmost surface of the substrate layer is 0.10-0.60mum, and the 60DEG glossiness of the outmost surface of the substrate layer is 20.0-71.5.
Description
Technical field
The present invention relates to a kind of surface protective plate.Specifically, the present invention relates to a kind of surface protective plate that comprises substrate layer and bonding coat.Surface protective plate of the present invention can be used for sticking on these surface and purposes of protecting etc. for example when opticses such as parts, polarizing coating, liquid crystal panel, electronic units such as carrying, processing or maintenance metal sheet, coated plate, aluminum alloy frame, resin board, decorative steel plate, vinylchlorid laminate steel, sheet glass etc. etc.
Background technology
Surface protective plate arranges bonding coat in a side of substrate layer usually.As the method for making such surface protective plate that comprises substrate layer and bonding coat, propose to have a kind of method (for example, with reference to patent documentation 1) that is shaped substrate layer and bonding coat are formed as one by coextrusion.
Usually, the outmost surface of the substrate layer in surface protective plate can in a lot of foreign matters are being arranged.Therefore, in existing surface protective plate, under the situation that the outmost surface that makes substrate layer becomes level and smooth, because therefore inherent foreign matter defaces and this problem of sense of touch.
The prior art document
Patent documentation: Japanese kokai publication sho 61-103975 communique
Summary of the invention
The problem that invention will solve
Problem of the present invention is to provide a kind of surface protective plate, and it comprises substrate layer and bonding coat, wherein, even foreign matter is being arranged in the outmost surface of substrate layer in for example, also can not deface, sense of touch.Be used for solving the means of problem
Surface protective plate of the present invention comprises substrate layer and bonding coat, wherein,
This substrate layer and this bonding coat form as one by coextrusion and form,
The surface roughness Ra of the outmost surface of this substrate layer is 0.10 μ m～0.60 μ m,
60 degree glossiness of the outmost surface of this substrate layer are 20.0～71.5.
In preferred embodiment, described surface roughness Ra is 0.20 μ m～0.60 μ m, and described 60 degree glossiness are 20.0～65.0.
In preferred embodiment, described substrate layer comprises polyolefin-based resins as main component.
In preferred embodiment, described substrate layer comprises the white color system layer.
In preferred embodiment, described white color system layer comprises polyethylene-based resin as main component.
In preferred embodiment, described polyethylene-based resin comprises the autoclave method polyethylene as main component.
In preferred embodiment, described white color system layer also comprises the resin different with described polyethylene-based resin.
In preferred embodiment, the resin different with described polyethylene-based resin is to be selected from least a in polypropylene-based resin and the ethylene vinyl acetate copolymer.
In preferred embodiment, described white color system layer comprises particle.
In preferred embodiment, described substrate layer comprises black system layer.
In preferred embodiment, described black is that layer comprises polyethylene-based resin as main component.
In preferred embodiment, described bonding coat comprises styrene series thermoplastic elastomer.
The invention effect
According to the present invention, a kind of surface protective plate can be provided, it comprises substrate layer and bonding coat, wherein, even foreign matter is being arranged in the outmost surface of substrate layer in for example, also can not deface, sense of touch.
Description of drawings
Fig. 1 is the sectional view that schematically shows a configuration example of surface protective plate of the present invention.
Nomenclature
100 surface protective plates
10 bonding coats
20 substrate layers
21 white color system layers
22 black system layer
Embodiment
Surface protective plate of the present invention comprises base material and slaughters and bonding coat.Surface protective plate of the present invention also can comprise the layer of suitable arbitrarily other in the scope of not damaging effect of the present invention.
The thickness of substrate layer is preferably 20 μ m～300 μ m, 30 μ m～250 μ m more preferably, and more preferably 40 μ m～200 μ m are preferably 45 μ m～150 μ m especially, most preferably are 50 μ m～100 μ m.As long as the thickness of substrate layer is contained in the above-mentioned scope; when then after being pasted on surface protective plate of the present invention by adherend, peeling off; substrate layer is cracky or break not; in addition; the hardness that can suppress substrate layer becomes big; therefore, surface protective plate of the present invention is pasted on by after the adherend, difficult generation is floated etc.
The thickness of bonding coat is preferably 1 μ m～50 μ m, 2 μ m～40 μ m more preferably, and more preferably 3 μ m～30 μ m are preferably 4 μ m～20 μ m especially, most preferably are 5 μ m～10 μ m.Be contained in the above-mentioned scope by the thickness with bonding coat, when being shaped manufacturing surface protective plate of the present invention by coextrusion, be easy to key-course and constitute, in addition, can obtain having the surface protective plate of sufficient mechanical.
The thickness of the integral body of surface protective plate of the present invention is preferably 30 μ m～150 μ m, 35 μ m～140 μ m more preferably, and more preferably 40 μ m～130 μ m are preferably 45 μ m～120 μ m especially, most preferably are 50 μ m～110 μ m.Be contained in the above-mentioned scope by the thickness with the integral body of surface protective plate of the present invention, can obtain the surface protective plate that the property handled is excellent and have sufficient mechanical.
Of the present inventionly show that screening glass is shaped substrate layer and bonding coat formed as one by coextrusion and form.Be shaped as coextrusion, can adopt the suitable coextrusion arbitrarily of the manufacturing that is generally used for film, sheet material etc. to be shaped.Be shaped as coextrusion, for example can adopt blow moulding, coextrusion T-modulus method etc.These coextrusion are shaped and consider preferred from the aspect of cost aspect and productivity.
For surface protective plate of the present invention; the surface roughness Ra of the outmost surface of substrate layer is 0.10 μ m～0.60 μ m; be preferably 0.20 μ m～0.60 μ m; 0.25 μ m～0.60 μ m more preferably; 0.30 μ m～0.60 μ m more preferably; be preferably 0.35 μ m～0.60 μ m especially, most preferably be 0.40 μ m～0.60 μ m.Be contained in the above-mentioned scope by the surface roughness Ra with the outmost surface of substrate layer; can carry out asperitiesization to the outmost surface of substrate layer effectively; foreign matter is being arranged even can provide in the outmost surface of substrate layer in for example, also can not deface and the surface protective plate of sense of touch.In addition, about the detailed content of the measuring method of surface roughness Ra, narrate in the back.
For surface protective plate of the present invention, 60 degree glossiness of the outmost surface of substrate layer are 20.0～71.5, are preferably 20.0～65.0; more preferably 20.0～63.0; more preferably 20.0～60.0, be preferably 20.0～55.0 especially, most preferably be 20.0～50.0.Be contained in the above-mentioned scope by 60 degree glossiness with the outmost surface of substrate layer; can carry out delustring to the outmost surface of substrate layer effectively handles; foreign matter is being arranged even can provide in the outmost surface of substrate layer in for example, also can not deface and the surface protective plate of sense of touch.In addition, about the detailed content of measuring method of 60 degree glossiness, narrate in the back.
For surface protective plate of the present invention, preferably 60 degree glossiness with the outmost surface of the surface roughness Ra of the outmost surface of substrate layer and substrate layer all are contained in the above-mentioned scope.For example; the surface roughness Ra of the outmost surface of surface protective plate preferred substrates layer of the present invention is 0.10 μ m～0.60 μ m; and 60 degree glossiness of the outmost surface of preferred substrates layer are 20.0～71.5; more preferably surface roughness Ra is 0.20 μ m～0.60 μ m, and more preferably 60 degree glossiness are 20.0～65.0.Be contained in the above-mentioned scope by 60 degree glossiness with the outmost surface of the surface roughness Ra of the outmost surface of substrate layer and substrate layer; can carry out asperitiesization and delustring processing to the outmost surface of substrate layer effectively; foreign matter is being arranged even can provide effectively in the outmost surface of substrate layer in for example, also can not deface and the surface protective plate of sense of touch.
Substrate layer preferably comprises polyolefin-based resins as main component.Comprise polyolefin-based resins as main component by substrate layer, can have thermotolerance, solvent resistance, pliability, can easily be wound into the roller shape.Polyolefin-based resins contained in the substrate layer can only be a kind of, also can be for two or more.
Substrate layer can be individual layer, also can be multilayer.
At this, in the present invention, so-called " main component " is preferably more than the 50 weight %, more preferably more than the 60 weight %, more preferably more than the 70 weight %, is preferably especially more than the 80 weight %, most preferably is more than the 90 weight %.
As polyolefin-based resins, for example can enumerate: polyethylene-based resin, polypropylene-based resin, ethylene etc.
As polyolefin-based resins, particularly, for example can enumerate: high density polyethylene(HDPE) (HDPE), medium-density polyethylene, Low Density Polyethylene (LDPE), straight chain shape Low Density Polyethylene polyethylene-based resins such as (LLDPE); Polypropylene-based resins such as homo-polypropylene, block polypropylene, Atactic Polypropelene; Ethylenes such as poly-(1-butylene), poly-(4-methyl-1-pentene), ethylene propylene copolymer, ethene butene-1 copolymer, ethene 1-hexene copolymer, ethene 4 methyl 1 pentene copolymer, ethene 1-octene copolymer, ethylene methyl acrylate copolymer, ethylene methacrylic acid methyl terpolymer, ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer, ethylene-vinyl alcohol copolymer etc.
Under the situation that substrate layer is made of the multilayer more than two layers, the preferred selection of the layer of each adjacency can form firm bonding material by dissolving coextrusion mutually as the resinous principle that constitutes them.
Substrate layer also can comprise the white color system layer.Comprise the white color system layer by substrate layer, can be made into the surface protective plate that has excellent weather resistance.
Substrate layer also can comprise black system layer.Comprise black system layer by substrate layer, can be made into the surface protective plate that has excellent weather resistance.
The preferred substrates layer comprises the white color system layer at least and black system layer is two-layer.At least it is two-layer to comprise white color system layer and black system layer by substrate layer, can be made into the very excellent surface protective plate of weathering resistance.
At least comprise under white color system layer and the black system layer two-layer situation at substrate layer; stacked formation as surface protective plate of the present invention; only otherwise damage effect of the present invention, for example can adopt suitable stacked formation arbitrarily such as " white color system layer/black system layer/bonding coat ", " black is layer/white color system layer/bonding coat ".Fig. 1 is the sectional view of a configuration example of situation that schematically shows surface protective plate 100 of the present invention and have the stacked formation of " white color system layer 21/ black system layer 22/ bonding coat 10 ".White color system layer 21 and black system layer 22 become substrate layer 20.
The white color system layer is the layer of the tone of expression white color system, and for example the whiteness of stipulating among the JIS-L-1015 is preferably more than 60%, more preferably more than 70%, more preferably more than 80%, is preferably more than 85% especially.The white color system layer preferably comprises white pigment.As white pigment, can adopt suitable arbitrarily white pigment.As such white pigment, for example can enumerate titanium oxide.Contain at the white color system layer under the situation of white pigment, it contains proportional is 0.1 weight %～50 weight % with respect to the resinous principle that forms the white color system layer preferably, more preferably 1 weight %～40 weight %, more preferably 2 weight %～30 weight %.By will can be made into the surface protective plate that has excellent weather resistance with respect to proportional being contained in the above-mentioned scope that contain of the white pigment of the resinous principle that forms the white color system layer, plasticity such as extrudability is also excellent.
The white color system layer preferably comprises polyolefin-based resins as main component.As the polyolefin-based resins that can be contained in the white color system layer, for example can enumerate: polyethylene-based resin, polypropylene-based resin, ethylene etc.The polyolefin-based resins that can be contained in the white color system layer can only use a kind of, also can use two or more.
As the polyolefin-based resins that can be contained in the white color system layer, particularly, for example can enumerate: high density polyethylene(HDPE) (HDPE), medium-density polyethylene, Low Density Polyethylene (LDPE), straight chain shape Low Density Polyethylene polyethylene-based resins such as (LLDPE); Polypropylene-based resins such as homo-polypropylene, block polypropylene, Atactic Polypropelene; Ethylenes such as poly-(1-butylene), poly-(4-methyl-1-pentene), ethylene propylene copolymer, ethene butene-1 copolymer, ethene 1-hexene copolymer, ethene 4 methyl 1 pentene copolymer, ethene 1-octene copolymer, ethylene methyl acrylate copolymer, ethylene methacrylic acid methyl terpolymer, ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer, ethylene-vinyl alcohol copolymer etc.
Polyolefin-based resins in the white color system layer contain proportional being preferably more than the 50 weight %, more preferably more than the 60 weight %, more preferably more than the 70 weight %, be preferably especially more than the 80 weight %, most preferably be more than the 90 weight %.
The white color system layer preferably comprises polyethylene-based resin as main component.Comprise polyethylene-based resin as main component by the white color system layer, substrate layer can have thermotolerance, solvent resistance, pliability, can easily surface protective plate of the present invention be wound into the roller shape.
Comprise under the situation of polyethylene-based resin as main component at the white color system layer, this polyethylene-based resin preferably comprises Low Density Polyethylene as main component.Comprise Low Density Polyethylene as main component by above-mentioned polyethylene-based resin, substrate layer can have thermotolerance, solvent resistance, pliability fully, can further easily surface protective plate of the present invention be wound into the roller shape.
As the polyethylene-based resin that can be contained in the white color system layer, for example can enumerate: autoclave method polyethylene, pipe (tubular) method polyethylene.
The autoclave method polyethylene is compared with pipe method polyethylene, and molecular weight distribution is wider, has many high molecular weight components.Therefore, when adopting the autoclave method polyethylene as the main component of the polyethylene-based resin that can be contained in the white color system layer, can carry out delustring to the outmost surface of white color system layer effectively and handle.In addition, the poly long-chain of autoclave method props up chain length, causes when extrusion molding and follows the swelling that is called as the intumescent pressure-losses of furnace charge.Therefore, when adopting the autoclave method polyethylene as the main component of the polyethylene-based resin that can be contained in the white color system layer, can carry out asperitiesization to the outmost surface of white color system layer effectively.As the polyethylene-based resin that is contained in the white color system layer, also can and use autoclave method polyethylene and pipe method polyethylene.
The density that can be contained in the polyethylene-based resin of white color system layer is preferably 0.880g/cm
3～0.940g/cm
3, 0.880g/cm more preferably
3～0.923g/cm
3, 0.880g/cm more preferably
3～0.915g/cm
3The density of the polyethylene-based resin by can being contained in the white color system layer is contained in the above-mentioned scope, can carry out asperitiesization to the outmost surface of white color system layer effectively and delustring is handled.
The MFR that can be contained in the polyethylene-based resin of white color system layer is preferably 0.1g/10min～10g/10min, more preferably 0.3g/10min～5g/10min, more preferably 0.3g/10min～3g/10min.The MFR of the polyethylene-based resin by can being contained in the white color system layer is contained in the above-mentioned scope, can carry out asperitiesization to the outmost surface of white color system layer effectively and delustring is handled.
Comprise under the situation of polyethylene-based resin as main component at the white color system layer, this white color system layer can also comprise the resin different with this polyethylene-based resin (being referred to as " xenogenesis resin " sometimes).Comprise the xenogenesis resin by the white color system layer, can follow and make up with polyethylene-based resin and effectively the outmost surface of white color system layer is carried out asperitiesization and delustring is handled.As such xenogenesis resin, in the scope of not damaging effect of the present invention, can adopt suitable arbitrarily resin.As such xenogenesis resin, for example can enumerate: be selected from least a in polypropylene-based resin and the ethylene vinyl acetate copolymer.Comprise at the white color system layer under the situation of such xenogenesis resin, such xenogenesis resin in the white color system layer contain the proportional 5 weight %～70 weight % that are preferably, 10 weight %～50 weight % more preferably, more preferably 10 weight %～40 weight % are preferably 10 weight %～30 weight % especially.By with containing of the such xenogenesis resin in the white color system layer of proportional being contained in the above-mentioned scope, can following and make up with polyethylene-based resin and further effectively the outmost surface of white color system layer is carried out asperitiesization and delustring is handled.
The white color system layer also can comprise particle.Comprise particle by the white color system layer, can carry out asperitiesization and delustring processing to the outmost surface of white color system layer effectively.As such particle, in the scope of not damaging effect of the present invention, can adopt suitable arbitrarily particle.As such particle, can enumerate: organic filler, inorganic particulate etc.As organic filler, for example can enumerate the vinylformic acid microballon made by PMMA etc. etc.As inorganic particulate, for example can enumerate silicon-dioxide, zeolite etc.Comprise at the white color system layer under the situation of such particle, such particle in the white color system layer contain the proportional 0.3 weight %～10 weight % that are preferably, 0.5 weight %～7 weight % more preferably, more preferably 0.5 weight %～5 weight % are preferably 0.5 weight %～3 weight % especially.By with containing of the such particle in the white color system layer of proportional being contained in the above-mentioned scope, can further carry out asperitiesization and delustring processing to the outmost surface of white color system layer effectively.
The thickness of white color system layer can adopt suitable arbitrarily thickness according to purpose.Such thickness is preferably 2 μ m～100 μ m, 3 μ m～80 μ m more preferably, and more preferably 4 μ m～60 μ m are preferably 5 μ m～50 μ m especially.
Black system layer is the layer of the tone of expression black system.Preferred black is that layer comprises black pigment.As black pigment, can adopt suitable arbitrarily black pigment.As such black pigment, for example can enumerate carbon black.Layer contains under the situation of black pigment in black system, and it contains proportional is 0.01 weight %～10 weight % with respect to the resinous principle that forms black system layer preferably, more preferably 0.1 weight %～5 weight %, more preferably 0.5 weight %～3 weight %.By will can be made into the surface protective plate that has excellent weather resistance with respect to proportional being contained in the above-mentioned scope that contain of the black pigment of the resinous principle that forms black system layer, plasticity such as extrudability is also excellent.
Black system layer preferably comprises polyolefin-based resins as main component.As the polyolefin-based resins that can be contained in the black system layer, for example can enumerate: polyethylene-based resin, polypropylene-based resin, ethylene etc.The polyolefin-based resins that can be contained in black system layer can only use a kind of, also can use two or more.
As the polyolefin-based resins that can be contained in black system layer, particularly, for example can enumerate: high density polyethylene(HDPE) (HDPE), medium-density polyethylene, Low Density Polyethylene (LDPE), straight chain shape Low Density Polyethylene polyethylene-based resins such as (LLDPE); Polypropylene-based resins such as homo-polypropylene, block polypropylene, Atactic Polypropelene; Ethylenes such as poly-(1-butylene), poly-(4-methyl-1-pentene), ethylene propylene copolymer, ethene butene-1 copolymer, ethene 1-hexene copolymer, ethene 4 methyl 1 pentene copolymer, ethene 1-octene copolymer, ethylene methyl acrylate copolymer, ethylene methacrylic acid methyl terpolymer, ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer, ethylene-vinyl alcohol copolymer etc.
Polyolefin-based resins in the black system layer contain proportional being preferably more than the 50 weight %, more preferably more than the 60 weight %, more preferably more than the 70 weight %, be preferably especially more than the 80 weight %, most preferably be more than the 90 weight %.
Black system layer preferably comprises polyethylene-based resin as main component.Comprise polyethylene-based resin as main component by black system layer, substrate layer can have thermotolerance, solvent resistance, pliability, can easily surface protective plate of the present invention be wound into the roller shape.
Comprise under the situation of polyethylene-based resin as main component at black system layer, preferably this polyethylene-based resin comprises and is selected from least a in Low Density Polyethylene and the straight chain shape Low Density Polyethylene.Comprise by above-mentioned polyethylene-based resin and to be selected from least a in Low Density Polyethylene and the straight chain shape Low Density Polyethylene; substrate layer can have thermotolerance, solvent resistance, pliability fully, can further easily surface protective plate of the present invention be wound into the roller shape.
The density that can be contained in the polyethylene-based resin of black system layer is preferably 0.880g/cm
3～0.940g/cm
3, 0.880g/cm more preferably
3～0.924g/cm
3, 0.880g/cm more preferably
3～0.915g/cm
3The density of the polyethylene-based resin by can being contained in black system layer is contained in the above-mentioned scope, and substrate layer can have thermotolerance, solvent resistance, pliability fully, can further easily surface protective plate of the present invention be wound into the roller shape.
The MFR that can be contained in the polyethylene-based resin of black system layer is preferably 1g/10min～10g/10min, more preferably 1g/10min～5g/10min, more preferably 2g/10min～4g/10min.The MFR of the polyethylene-based resin by can being contained in black system layer is contained in the above-mentioned scope, and substrate layer can have thermotolerance, solvent resistance, pliability fully, can further easily surface protective plate of the present invention be wound into the roller shape.
The thickness of black system layer can adopt suitable arbitrarily thickness according to purpose.Such thickness is preferably 2 μ m～100 μ m, and more preferably 3 μ m～80 μ m further are preferably 4 μ m～60 μ m, are preferably 5 μ m～50 μ m especially.
Substrate layer can contain suitable additive arbitrarily.As such additive, for example can enumerate: antioxidant, UV light absorber, protective agent, photostabilizer, static inhibitor, surface lubricant, flow agent, softening agent, low-molecular(weight)polymer, sanitas, stopper, silane coupling agent, inorganic and organic weighting agent (for example calcium oxide, magnesium oxide, silicon-dioxide, zinc oxide, titanium oxide etc.), metal powder, tinting material, pigment, heat-resisting stabilizing agent, preventing materials accumulation agent (order ヤ ニ prevents drug), lubricant, anti etc.
Also can implement the back side to outermost layer substrate layer and the bonding coat opposition side handles.Method as handle at the back side in the scope of not damaging effect of the present invention, can adopt appropriate means arbitrarily.As the method that handle at such back side, for example can enumerate surface working such as embossing processing or concavo-convex processing, contain chain alkyl and be the method for back side treatment agent or derivative of fatty acid etc.Such chain alkyl is that back side treatment agent or derivative of fatty acid can only be a kind of, also can be for two or more.
Comprise at substrate layer under the situation of derivative of fatty acid, derivative of fatty acid in this substrate layer contain proportional preferred be 0.05 weight %～1.00 weight % with respect to the resinous principle in the substrate layer, more preferably 0.10 weight %～0.90 weight %, more preferably 0.30 weight %～0.80 weight %.By proportional be contained in the above-mentioned scope with respect to the resinous principle in the substrate layer containing of the derivative of fatty acid in the substrate layer; can easily make the surface protective plate uncoiling of the present invention of making the roller shape; stripping result can be shown fully, the pollution of oozing out generation of this derivative of fatty acid can be suppressed simultaneously fully.
As derivative of fatty acid, refer in molecular structure, comprise the compound of derivative of fatty acid structure.
As derivative of fatty acid, for example can enumerate: saturated fatty acid bisamide, unsaturated fatty acids bisamide, fragrant family bisamide, replacement urea, fatty acid metal salt etc.As derivative of fatty acid, particularly, for example can enumerate: methylene-bis stearic amide, ethylenebis stearic amide, ethylenebisoleaamide, N, N-stearyl-N '-stearic amide, Zinic stearass etc. such as N-two oleyl hexanodioic acid acid amides, N-stearyl-N '-stearic urea.
As derivative of fatty acid, be preferably fatty acid amide, more preferably be selected from least a in methylene-bis stearic amide, ethylenebis stearic amide, N-stearyl-N '-stearic amide.
The preferred fusing point of derivative of fatty acid is more than 100 ℃.Fusing point is lower than 100 ℃ the transfer printing of derivative of fatty acid in the bonding coat surface and becomes significantly, might be easy to generate bounding force and reduce.
Preferred bonding coat comprises thermoplastic resin as main component.Thermoplastic resin contained in the bonding coat can only be a kind of, also can be for two or more.
As thermoplastic resin, can adopt suitable arbitrarily thermoplastic resin.As such thermoplastic resin, for example can enumerate: ethylene series resin, the olefin/diene copolymers that contains aromatic group, phenylethylene resin series, ester are resin etc.In these thermoplastic resins, optimization styrene is resin, more preferably styrene series thermoplastic elastomer.
As styrene series thermoplastic elastomer, preferably can enumerate: styrene block copolymer or its hydride.
As styrene block copolymer, for example can enumerate: styrene butadiene styrene multipolymer (SBS), styrene isoprene styrol copolymer polystyrene ABA block polymer (triblock copolymer) such as (SIS); Styrene butadiene styrene butadienecopolymer (SBSB), styrene isoprene styrene isoprene multipolymer polystyrene ABAB type segmented copolymers (Tetrablock copolymer) such as (SISI); Styrene butadiene styrene butadienestyrene copolymer (SBSBS), styrene isoprene styrene isoprene styrol copolymer polystyrene ABABA type segmented copolymers (five segmented copolymers) such as (SISIS); Has the styrene block copolymer of its above AB repeating unit etc.
As the hydride of styrene block copolymer, for example can enumerate: the multipolymer (SEBSEB) of styrene ethylene-butylene copolymer styrol copolymer (SEBS), styrene ethylene-propylene copolymer styrol copolymer (SEPS), styrene ethylene-butylene copolymer styrene ethylene-butylene copolymer etc.
Styrene series thermoplastic elastomer can only use a kind of, also can use two or more.
Be under the situation of styrene block copolymer or its hydride at styrene series thermoplastic elastomer, styrene block content in this styrene series thermoplastic elastomer is preferably 5 weight %～40 weight %, more preferably 7 weight %～30 weight %, more preferably 9 weight %～20 weight %.When above-mentioned styrene block content tails off, may be easy to generate because the cull that the cohesive force deficiency of bonding coat causes.Above-mentioned styrene block contains quantitative change for a long time, might bonding coat may hardening and can't obtain the binding property good with respect to asperities.
As styrene series thermoplastic elastomer, preferably has the hydride (SEBS, SEBSEB, SEBSEBS etc.) of the styrene block copolymer of the repeating structure (ABA type, ABAB type, ABABA type etc.) more than the triblock copolymer that is constituted by vinylbenzene (A) and divinyl (B).By adopting such styrene series thermoplastic elastomer, can be further appropriateness improve fully to by the bonding force under the adherend sticking state, on the other hand, bonding force when peeling off after pasted by adherend is the further size of appropriateness, therefore, with slight power just can be further easily from being peeled off by adherend, and then, can further suppress to be exposed to the rising of the bonding force under the situation of carrying capacity of environment of the prolonged preservation under the higher temperatures.
At styrene series thermoplastic elastomer for having under the situation by the hydride (SEBS, SEBSEB, SEBSEBS etc.) of the styrene block copolymer of the repeating structure (ABA type, ABAB type, ABABA type etc.) more than the triblock copolymer of vinylbenzene (A) and divinyl (B) formation, the ratio of shared butylene structure is preferably more than the 60 weight % in the ethylene-butene copolymer block, more preferably more than the 70 weight %, more preferably more than the 75 weight %.Be contained in the above-mentioned scope by the ratio with butylene structure shared in the above-mentioned ethylene-butene copolymer block, can be further appropriateness improve fully to by the bonding force under the adherend sticking state, on the other hand, bonding force when peeling off after pasted by adherend is the further size of appropriateness, thereby, just can be further easily from being peeled off by adherend with slight power, and then, can further suppress to be exposed to the rising of the bonding force under the situation of carrying capacity of environment of the prolonged preservation under the higher temperatures.In addition, the ratio of shared butylene structure is preferably below the 90 weight % in the above-mentioned ethylene-butene copolymer block.
For bonding coat, be purpose with fusible adjusting etc., in the scope of not damaging purpose of the present invention, also can comprise other styrene series thermoplastic elastomer.
As other styrene series thermoplastic elastomer, can enumerate: the styrene block copolymer beyond above-mentioned; The multipolymer (SEB) of styrene-butadiene-copolymer (SB), styrene isoprene multipolymer (SI), styrene ethylene-butylene copolymer, the multipolymer AB type block polymers such as (SEP) of styrene ethylene-propylene copolymer; Styrene butadiene ribber polystyrene random copolymerss such as (SBR); The vinylbenzene alkene crystal system block polymer of the multipolymer A-B-C types such as (SEBC) of styrene ethylene-butylene copolymer alkene crystallization; These hydride etc.
When forming bonding coat, be purpose with control adhesion characteristic etc., tenderizer as required also can suit for example to add as be used for, tackifier, the polyolefin-based resins of substrate layer and so on, the silicone-based polymkeric substance, aqueous acrylic copolymer, the phosphoric acid ester based compound, protective agent, Photostabilised dose, UV light absorber, surface lubricant, flow agent, softening agent, low-molecular(weight)polymer, antioxidant, sanitas, stopper, silane coupling agent, inorganic and organic weighting agent (for example, calcium oxide, magnesium oxide, silicon-dioxide, zinc oxide, titanium oxide etc.), metal powder, tinting material, pigment, additives such as heat-resisting stabilizing agent.
Also embodiment such as Corona discharge Treatment, uviolizing processing, flame treating, Cement Composite Treated by Plasma, sputter etching processing etc. are the surface treatment of purpose with fusible control or sticking operation etc. as required on the bonding coat surface.
The cooperation of tackifier is effective for improving bounding force.But, for fear of the cull problem that the reduction that produces cohesive force causes, the use level of tackifier according to the application surface screening glass suit by adherend definite.The use level of tackifier is below the 80 weight % with respect to the base polymer of bonding coat preferably, more preferably below the 40 weight %, more preferably below the 20 weight %.In addition, the application surface screening glass be under the situation of metal sheet by adherend, preferably when forming bonding coat, do not add tackifier.
As tackifier, for example can use petroleum line resins such as aliphatics based copolymer, aromatic series based copolymer, aliphatics aromatic series based copolymer system or ester ring type based copolymer with being not particularly limited; Coumarone-indenes is that resin, terpenic series resin, terpenes phenolic aldehyde are rosin series resins such as resin, polymerized rosin; (alkyl) phenolic aldehyde is resin, diformazan benzene series resin, these the general tackifier that are used for tackiness agent such as hydride.Tackifier can only use a kind of, also can use two or more.In these tackifier, consider the tackifier that preferred hydrogenation is from aspects such as separability or weathering resistancies.In addition, tackifier also can use as with the blend of olefin resin by commercially available tackifier.
The cooperation of tenderizer is effective for improving bounding force.As tenderizer, for example can enumerate: low-molecular-weight diene polymer, polyisobutene, hydrogenated polyisoprene, hydrogenated butadiene polymer, their derivative etc.As such derivative, for example can be illustrated in the derivative that an end or two ends have OH base or COOH base, particularly, can enumerate: hydrogenated butadiene polymer glycol, hydrogenated butadiene polymer single methanol, hydrogenated polyisoprene glycol, hydrogenated polyisoprene single methanol etc.Particularly from suppressing with respect to considered the hydride of diene polymers such as preferred hydrogenated butadiene polymer or hydrogenated polyisoprene or ethylene series tenderizer etc. by the purpose of the fusible raising of adherend.As such tenderizer, particularly, can obtain the trade(brand)name " KurapreneLIR-200 " of (strain) Kuraray system etc.These tenderizers can only use a kind of, also can use two or more.
The molecular weight of tenderizer can suit to be set at suitable arbitrarily amount, but when molecular weight diminishes, might become material moves to by adherend or the heavy reason of peeling off etc. from bonding coat, on the other hand, when the molecule quantitative change is big, the trend that has the raising effect of bounding force to become and lack, therefore, the number-average molecular weight of tenderizer is preferably 5000～100,000, and more preferably 10,000～50,000.
Under the situation of using tenderizer, its addition can suit to be set at suitable arbitrarily amount, but add quantitative change for a long time, the trend that has the cull when being exposed to high temperature or open air to increase, therefore, preferably the base polymer with respect to bonding coat is below the 100 weight %, more preferably below the 60 weight %, more preferably below the 40 weight %.In addition, the application surface screening glass be under the situation of metal sheet by adherend, preferably when forming bonding coat, do not add tenderizer.
Be purpose to suppress bonding force rising etc., also can in bonding coat, add polyolefin-based resins.Polyolefin-based resins can the illustration resin same with the resin of the formation that is used for substrate layer.This polyolefin-based resins can only be a kind of, also can be for two or more.The use level of this polyolefin-based resins is below the 50 weight % with respect to the base polymer of bonding coat preferably, more preferably below the 30 weight %, more preferably below the 20 weight %.
In bonding coat, also can be as required up to for during practicality, the temporary adhesion dividing plate waits to protect.
The manufacture method of surface protective plate of the present invention preferably is shaped substrate layer and bonding coat formed as one by coextrusion and makes.Thus, can be efficiently and make the surface protective plate of the stepped construction of the thickness with regulation at an easy rate.Be shaped as coextrusion, can adopt the suitable coextrusion arbitrarily of the general manufacturing that is used for film, sheet material etc. to be shaped.Be shaped as coextrusion, for example can adopt blow moulding, coextrusion T-die head method etc.
Be shaped according to coextrusion, the outermost of the opposition side of the bonding coat of substrate layer and bonding coat do not join dissolving under the heated condition, therefore, do not generate by product and this pair resultant that the outmost thermal degradation when of opposition side of the bonding coat of substrate layer causes and do not move to bonding coat, show excellent uncoiling, can suppress the pollution on bonding coat surface.
Embodiment
Below, be specifically described by the present invention of embodiment, but the present invention is not limited to these embodiment.
(mensuration of density)
Density (the g/cm of resin
3) adopt the value of measuring according to ISO1183.
(mensuration of surface roughness Ra)
On the SUS430BA plate with the reciprocal adhesive surface screening glass of 2kg roller.According to JISB0601 (2001), be that 2 μ m, measured length are the surface roughness Ra (μ m) that 4mm, cut-out value 0.8mm measure the white layer side of the surface protective plate of being pasted with the stylus tip diameter.
(mensuration of 60 degree glossiness)
Use the miniature angular glossometer of Gardner corporate system, measure 60 ° of corner reflection rates.
(ocular estimate)
On the SUS430BA plate, with the reciprocal adhesive surface screening glass of 2kg roller, observe with visual from the white layer side of the surface protective plate pasted.
The situation of seeing bubble when pasting or foreign matter significantly is made as *, will be difficult for seeing that the situation of bubble or foreign matter is made as O by asperitiesization or the low glossization on surface.
(coextrusion shaping condition)
In embodiment and comparative example, the temperature condition that dissolves according to following forms by blow moulding.
Substrate layer: 165 ℃
Bonding coat: 165 ℃
Coextrusion temperature: 165 ℃
[embodiment 1]
Cooperate Low Density Polyethylene (Japanese polyethylene system, trade(brand)name: NovatecLD LF440C, density=0.923g/cm
3, MFR=2.8g/10min, the autoclave method polyethylene) (titanium oxide, Dupont system, trade(brand)name: Ti-PureR103) 18 weight % obtain the white color system layer and form material for 82 weight %, white pigment.
Then, with by Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3) cooperation that constitutes of 95 weight % and carbon black MB (firmly change color system, trade(brand)name: Black SPEMB-865, carbon content 20%) 5 weight % cooperates, obtain black system layer and form a material.
And then, (hydrogenation SEBS, styrene content=15 weight %, JSR system, trade(brand)name: Dynaron 8600P) (C5 is that hydrogenated aromatic petroleum resin, bright dipping emergingly produce, trade(brand)name: 18 weight % Aimerb P140) obtain bonding coat and form material for 82 weight % and tackifier to cooperate SEBS.
Use the white color system layer that obtains in above-mentioned to form that material, black system layer form a material, bonding coat forms material; by utilizing the co-extrusion modling of blow moulding, obtain surface protective plate (the 1) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 1.
[embodiment 2]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene172, density=0.920g/cm
3, MFR=0.3g/10min, autoclave method polyethylene) 82 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name=Ti-Pure R103) 18 weight % and the white color system layer that obtains forms material; in addition; carry out similarly to Example 1, obtain surface protective plate (the 2) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 1.
[embodiment 3]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3MFR=3.0g/10min; pipe method polyethylene) 73 weight %; chain alkyl is back side treatment agent (ashio industry (strain) system; ASHIO RESINRA95HS (fully saponified polyvinyl octadecyl carbamate series stripping agent)) 9 weight %; white pigment (titanium oxide; the Dupont system; trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the 3) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 1.
[embodiment 4]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (Japanese polyethylene system, trade(brand)name: NovatecLD LC720, density=0.922g/cm
3, MFR=9.4g/10min, autoclave method polyethylene) 47 weight %, Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene172, density=0.920g/cm
3, MFR=0.3g/10min, autoclave method polyethylene) 35 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the 4) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 1.
[embodiment 5]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min, pipe method polyethylene) 32 weight %, Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene172, density=0.920g/cm
3, MFR=0.3g/10min, autoclave method polyethylene) 50 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the 5) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 1.
[embodiment 6]
Use and cooperate Low Density Polyethylene (Japanese polyethylene system, trade(brand)name: NovatecLD LF440C, density=0.923g/cm
3, MFR=2.8g/10min, autoclave method polyethylene) 47 weight %, Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene172, density=0.920g/cm
3, MFR=0.3g/10min, autoclave method polyethylene) 35 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the 6) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 1.
[embodiment 7]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min; pipe method polyethylene) 77 weight %, vinylformic acid microballon MB (firmly change color system, trade(brand)name: Kino Plus EMB-Y-1231, vinylformic acid microballon concentration 5%) 5 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: Ti-PureR103) 18 weight % and the white color system layer that obtains forms material; in addition; carry out similarly to Example 1, obtain surface protective plate (the 7) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 2.
[embodiment 8]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min; pipe method polyethylene) 72 weight %, vinylformic acid microballon MB (firmly change color system, trade(brand)name: Kino Plus EMB-Y-1231, vinylformic acid microballon concentration 5%) 10 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the 8) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 2.
[embodiment 9]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (Japanese polyethylene system, trade(brand)name: NovatecLD LF440C, density=0.923g/cm
3, MFR=2.8g/10min, autoclave method polyethylene) 77 weight %, vinylformic acid microballon MB (firmly change color system, trade(brand)name: Kino Plus EMB-Y-1231, vinylformic acid microballon concentration 5%) 5 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the 9) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 2.
[embodiment 10]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min; pipe method polyethylene) 72 weight %, polypropylene (Japan polypropylene system, NovatecPP EG8B) 10 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the 10) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 2.
[embodiment 11]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min; pipe method polyethylene) 62 weight %, polypropylene (Japan polypropylene system, NovatecPP EG8B) 20 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the 11) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 2.
[embodiment 12]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (Japanese polyethylene system, trade(brand)name: NovatecLD LC720, density=0.922g/cm
3MFR=9.4g/10min; the autoclave method polyethylene) 62 weight %; ethylene vinyl acetate copolymer (Mitsui Dupont Polychemicals system; trade(brand)name: 20 weight % Evaflex EV360RC); white pigment (titanium oxide; the Dupont system; trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the 12) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 2.
[comparative example 1]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min; pipe method polyethylene) 82 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the C1) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 3.
[comparative example 2]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min, pipe method polyethylene) 72 weight %, Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene172, density=0.920g/cm
3, MFR=0.3g/10min, autoclave method polyethylene) 10 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the C2) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 3.
[comparative example 3]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min, pipe method polyethylene) 62 weight %, Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene172, density=0.920g/cm
3, MFR=0.3g/10min, autoclave method polyethylene) 20 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103); in addition; carry out similarly to Example 1, obtain surface protective plate (the C3) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 3.
[comparative example 4]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min; pipe method polyethylene) 72 weight %, metallocene polypropylene (Japan polypropylene system, trade(brand)name: 10 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: 18 weight % and the white color system layer that obtains forms material Ti-Pure R103) Wintech WFX6); in addition; carry out similarly to Example 1, obtain surface protective plate (the C4) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 3.
[comparative example 5]
Form material as the white color system layer, use to cooperate Low Density Polyethylene (eastern Cao's system, trade(brand)name: Petrothene186R, density=0.924g/cm
3, MFR=3.0g/10min; pipe method polyethylene) 72 weight %, ethylene vinyl acetate copolymer (Mitsui Dupont Polychemicals system, trade(brand)name: 10 weight %, white pigment (titanium oxide, Dupont system, trade(brand)name: Ti-PureR103) 18 weight % and the white color system layer that obtains forms material Evaflex EV360RC); in addition; carry out similarly to Example 1, obtain surface protective plate (the C5) (thickness: the white color system layer/layer/bonding coat=20 μ m/35 μ m/5 μ m of black system) of three-decker (white color system layer/black system layer/bonding coat).
Show the result in table 3.
[table 1]
[table 2]
[table 3]
Distinguished by table 1, table 2, table 3; surface protective plate of the present invention is the surface protective plate that comprises substrate layer and bonding coat; the outmost surface of substrate layer is carried out asperitiesization effectively and carried out the delustring processing, even for example the inherence has foreign matter also can not deface and sense of touch.Utilizability on the industry
Surface protective plate of the present invention can be used for sticking on these surface and purposes of protecting etc. for example when opticses such as parts, polarizing coating, liquid crystal panel, electronic units such as carrying, processing or maintenance metal sheet, coated plate, aluminum alloy frame, resin board, decorative steel plate, vinylchlorid laminate steel, sheet glass etc. etc.
Claims (12)
1. surface protective plate, wherein,
Comprise substrate layer and bonding coat,
This substrate layer and this bonding coat form as one by coextrusion and form,
The surface roughness Ra of the outmost surface of this substrate layer is 0.10 μ m～0.60 μ m,
60 degree glossiness of the outmost surface of this substrate layer are 20.0～71.5.
2. surface protective plate according to claim 1, wherein,
Described surface roughness Ra is 0.20 μ m～0.60 μ m, and described 60 degree glossiness are 20.0～65.0.
3. surface protective plate according to claim 1, wherein,
Described substrate layer comprises polyolefin-based resins as main component.
4. surface protective plate according to claim 1, wherein,
Described substrate layer comprises the white color system layer.
5. surface protective plate according to claim 4, wherein,
Described white color system layer comprises polyethylene-based resin as main component.
6. surface protective plate according to claim 5, wherein,
Described polyethylene-based resin comprises the autoclave method polyethylene as main component.
7. surface protective plate according to claim 5, wherein,
Described white color system layer also comprises the resin different with described polyethylene-based resin.
8. surface protective plate according to claim 7, wherein,
The resin different with described polyethylene-based resin is to be selected from least a in polypropylene-based resin and the ethylene vinyl acetate copolymer.
9. surface protective plate according to claim 4, wherein,
Described white color system layer comprises particle.
10. surface protective plate according to claim 1, wherein,
Described substrate layer comprises black system layer.
11. surface protective plate according to claim 10, wherein,
Described black is that layer comprises polyethylene-based resin as main component.
12. surface protective plate according to claim 1, wherein,
Described bonding coat comprises styrene series thermoplastic elastomer.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012100362183A CN103254819A (en) | 2012-02-15 | 2012-02-15 | Surface protection sheet |
| PCT/JP2013/052140 WO2013121885A1 (en) | 2012-02-15 | 2013-01-31 | Surface-protecting sheet |
| TW102104983A TW201336965A (en) | 2012-02-15 | 2013-02-07 | Surface-protecting sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100362183A CN103254819A (en) | 2012-02-15 | 2012-02-15 | Surface protection sheet |
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| CN103834314A (en) * | 2012-11-22 | 2014-06-04 | 日东电工株式会社 | Surface protection sheet |
| CN106318252A (en) * | 2016-08-18 | 2017-01-11 | 宁波卓胜新材料有限公司 | Coextruded coating-type protection adhesive tape and preparation method thereof |
| CN106587651A (en) * | 2015-10-16 | 2017-04-26 | 旭硝子株式会社 | Glass member and manufacturing method of glass member |
| WO2018099239A1 (en) * | 2016-11-30 | 2018-06-07 | 日东电工（上海松江）有限公司 | Heat resistant adhesive tape and manufacturing method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103834315A (en) * | 2012-11-22 | 2014-06-04 | 日东电工株式会社 | Surface protection sheet |
| CN103834314A (en) * | 2012-11-22 | 2014-06-04 | 日东电工株式会社 | Surface protection sheet |
| CN106587651A (en) * | 2015-10-16 | 2017-04-26 | 旭硝子株式会社 | Glass member and manufacturing method of glass member |
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Application publication date: 20130821 |