CN103642414B - Water-proofing double-sided adhesive tape - Google Patents
Water-proofing double-sided adhesive tape Download PDFInfo
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- CN103642414B CN103642414B CN201310589681.5A CN201310589681A CN103642414B CN 103642414 B CN103642414 B CN 103642414B CN 201310589681 A CN201310589681 A CN 201310589681A CN 103642414 B CN103642414 B CN 103642414B
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- base material
- adhesive tape
- sided adhesive
- foaming body
- double
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/26—Porous or cellular plastics
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/241—Polyolefin, e.g.rubber
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesive Tapes (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of water-proofing double-sided adhesive tape.It is that 40~160kPa, tensile strength are 300~1500N/cm by using 25% compressive strength as foaming body base material in the double-sided adhesive tape with foaming body base material and adhesive phase2Even when bonding rigid body each other, also there is excellent close property between double-sided adhesive tape and adherend body, it is possible to achieve effectively prevent the double-sided adhesive tape of the water proofing property of water immersion.
Description
The present invention be Application No. 2009101282979, the applying date be on March 30th, 2009, it is entitled " waterproof use
The divisional application of the patent application of double-sided adhesive tape ".
Technical field
The present invention relates to a kind of double-sided adhesive tape using foaming body base material as the water proofing property of SMIS.
Background technology
All the time, in the mancarried electronic aid such as data recorder, mobile phone, PHS, camera, music player, with presentation of information
The protection panels in portion and framework fit into representative, use double-sided adhesive tape in the fixation of various components or module always.For
Ensure competition superiority in the market, it is desirable to which diversified function, one of them is the function that water proofing property is paid in requirement.
The adhesive tape used in is fixed as the part of electronic equipment, for example, discloses the temperature at -40~-15 DEG C
There is loss angle tangent in region（tanδ）Maximum, the face adhesive strength for specific adherend body is 19N/cm2With
On adhesive phase be arranged on the both-sided adhesive thin slice on supporting mass two sides（Referring to patent document 1）.The both-sided adhesive thin slice leads to
Cross and possess excellent bonding force with specific adhesive phase, possess caused by not allowing to be also easy to produce impact when object is fallen
Part come off such excellent impact resistance.However, as protection panels are bonding with framework, the engagement between rigid body
In, the both-sided adhesive thin slice obtains complete closely sealed due to being difficult on the composition surface with adherend body, has slightly gap to produce
The situation of raw immersion.
As the Double-sided adhesive tape of excellent adhesion, disclose with using foaming body as base material, show loss angle tangent
（tanδ）The temperature of maximum be less than -25 DEG C, be the acrylic acid of more than 24 hours in the retention time of 0 DEG C of holding experiment
It is the Double-sided adhesive tape of adhesive phase（Referring to patent document 2）.The Double-sided adhesive tape is to the closely sealed excellent of adherend body, structure
Can be suitably between engagement member when being bonded between part.However, being only the feelings used using foaming body as base material
Under condition, it is difficult to a little degree in gap is suppressed in component and bond layer interface, even having in the interface part
If the gap that can be entered with water logging or buoy, then thus the intrusion path of water expands, so water proofing property difficult to realize.Especially
Ground, according in mancarried electronic aid purposes along with picture in recent years large screen narrow margo frontalis, also have slimming will
Ask, it is necessary in the case of narrower tape width and relatively thin tape thickness, it is difficult to pay sufficient water proofing property.
Patent document 1：Japanese Unexamined Patent Publication 2005-187513 publications
Patent document 2：Japanese Unexamined Patent Publication 2005-281360 publications
The content of the invention
Problems to be solved by the invention
Even the problem to be solved by the present invention is that provide a kind of tape thickness it is thin also show that with adherend body it is good
Good cementability, and the excellent double-sided adhesive tape of water-proof function.
Further, offer is also resided in outside above-mentioned problem a kind of with excellent impact resistance, it is adaptable to mancarried electronic aid
The water-proofing double-sided adhesive tape of purposes.
The means solved the problems, such as
The present inventor etc. endeavours the result of research, finds by using the foaming body base with specific flexibility and intensity
Material is as base material, even can also be realized when being bonded between rigid body excellent closely sealed between double-sided adhesive tape and adherend body
Property, the dipping of water can be effectively prevented, so as to solve above-mentioned problem.
That is the invention provides a kind of water-proofing double-sided adhesive tape, the water-proofing double-sided adhesive tape is that have
The double-sided adhesive tape of foaming body base material and adhesive phase, 25% compressive strength of the foaming body base material is 40~160kPa, drawing
It is 300~1500N/cm to stretch intensity2。
Invention effect
The water-proofing double-sided adhesive tape of the present invention shows the suitable adaptation with adherend body, can effectively prevent
Only immersed from the water of close clearance, with excellent water-proof function.Therefore, the volume limit in slimming propulsion, framework
System is strict, be difficult to also can effectively pay waterproof work(in mancarried electronic aid of water-stop means of setting other method etc.
Energy.
Brief description of the drawings
Fig. 1 is the concept map for the test film for representing waterproof test 2.
Fig. 2 is from the bottom surface side for determining platform 6 so that the state that loads down of acrylic panel is by waterproof test 2
Test film is fixed on U-shaped and determines platform 6（Thickness 5mm aluminum）State concept map.
Fig. 3 is the concept map for representing to give the operation of drop impact.
Symbol description
1 double-sided adhesive tape
2 acrylic panels
3 ABS plates
4 bear to hit the place of core
5 drop impacts are with hitting core
6 U-shapeds determine platform
Embodiment
The water-proofing double-sided adhesive tape of the present invention has foaming body base material and adhesive phase, the foaming body base material
25% compressive strength is that 40~160kPa, tensile strength are 300~1500N/cm2。
（Foaming body base material）
The foaming body base material used in the present invention is that 25% compressive strength is 40~160kPa, is preferably 50~140kPa, more
Preferably 60~130kPa foaming body base material.By using 25% compressive strength the scope foaming body base material, with quilt
The excellent adaptation of viscous object, particularly follows and has with being also suitable for even for the adherend body for having concaveconvex shape or mat surface
There is excellent adaptation.In addition, the foaming body base material of the compressive strength is due to the resiliency with appropriateness, pressure collection during attaching
In at junction surface so as to which easy extrusion is present in the air of bonding interface, therefore, it is possible to realize in the engagement between rigid body
The excellent adaptation in the gap of water inlet is not produced yet.
The foaming structure for the foaming body base material that the present invention is used use separated foam structure, so as to effectively prevent from
The immersion in the section of foaming body base material, thus preferably.There is no particular limitation for the bubble shape of formation separated foam structure, and flows
Dynamic direction or width, or the mean air bubble diameter of the rwo are longer than the mean air bubble diameter of the thickness direction of foaming body
The separated foam of shape is due to the resiliency with appropriateness, thus preferably.
The mean air bubble diameter of the thickness direction of foaming body base material is preferably 1~100 μm, more preferably 10~50 μm, hair
The flow direction of foam base material and the mean air bubble diameter of width are preferably 1.2~700 μm, more preferably 10~500 μ
M, more preferably 50~300 μm.By making mean air bubble diameter be the scope, so that even in by the width of two-sided tape
Also separated foam is readily formed in the case of narrowing, the soak path from foaming body base material section can be suitably blocked.
The ratio of mean air bubble diameter is not particularly limited, and the average bubble in the flow direction of foaming body base material is straight
Footpath is relative to the ratio between mean air bubble diameter of thickness direction of foaming body base material（Mean air bubble diameter/thickness side of flow direction
To mean air bubble diameter）Preferably 1.2~15, more preferably 3~8.In addition, the average air of the width of foaming body base material
Bulb diameter is relative to the ratio between the mean air bubble diameter in foaming body base material thickness direction（Mean air bubble diameter/thickness of width
The mean air bubble diameter in direction）Preferably 1.2~15, more preferably 3~8.Further, flow direction and width are simultaneously
Above range then more has preferably.The ratio it is easy to ensure that the flexibility of thickness direction, thus is improved and followed when being more than 1.2
Property.Further, the flow direction of foaming body base material and the flexibility of width or tensile strength are not likely to produce when being less than 15 times
Deviation.
Furthermore, the ratio of the mean air bubble diameter of flow direction and width, make flow direction be 1 in the case of preferably
For 0.25~4 times, more preferably 0.33~3 times.During for above-mentioned ratio ranges, be not likely to produce foaming body base material flow direction and
The flexibility of width or the deviation of tensile strength.
The width of foaming body base material and the mean air bubble diameter of flow direction are measured with following main points.First, it will send out
Foam base material all cuts off 1 ㎝ on width, flow direction.Then, using scanning electron microscope（SEM）By cut-out
The section middle body of foaming body base material expands 50 times, and afterwards, the section of foaming body base material is after the base material thickness direction
Total length be accommodated in photo like that, the section of the width of foaming body base material or flow direction is taken pictures.Obtaining
Photo in, measurement flow direction or width expansion before physical length for 2mm section present in all gas
Bulb diameter, mean air bubble diameter is gone out by the mean value calculation.
The mean air bubble diameter of the thickness direction of foaming body base material is measured with following main points.First, measurement is taken pictures with SEM
The thickness of foaming body base material.Then, measured under the same conditions with the mean air bubble diameter of the flow direction of foaming body base material
SEM is carried out to take pictures.Afterwards, in the photo of acquirement, range estimation counts thickness direction present in any one place of foaming body base material
Number of bubbles, the mean air bubble diameter of thickness direction is calculated by following formula.
The mean air bubble diameter of thickness direction（μm）The thickness of=foaming body base material（μm）/ bubble number
In this regard, being measured in any 3 places, value is averaged as the mean air bubble diameter of thickness direction.
Compressive strength or tensile strength are adjusted to above range by the foaming structure of foaming body base material, are easily realized with being glued
The excellent adaptation of object, thus, its expansion ratio are preferably 2~5 times, more preferably 2.4~4 times.
Further, on 25% compressive strength, the sample for being cut to 50mm square blocks is added to thickness about 10mm.With than sample
The big plate of area clamps sample, and sample is compressed into about 2.5mm with 10mm/ points of speed at 23 DEG C（Original the 25% of thickness）Stop
Only, intensity of the measurement after 20 seconds.
The compressive strength or tensile strength of foaming body base material can be appropriate according to the raw material or foaming structure of use base material
Adjustment.As long as the species of the foaming body base material used in the present invention has above-mentioned compressive strength, tensile strength not special
Limitation, can be used by groups such as polyethylene, polypropylene, ethylene-propylene copolymer polymer, ethene-vinyl acetate copolymerized polymers
Into polyolefin foaming body, or by polyurethane series foaming body, the rubber of the composition such as acrylic rubber or other elastic materials
It is foaming body etc., wherein, easily make to excellent thin foaming bodies such as the concavo-convex tracing abilities or snubber of adherend body
Base material, therefore polyolefin foaming body can be preferably used.
The thickness of foaming body base material can carry out suitable adjustment according to situation about using, and be 50~1200 μm.Electronics is set
Standby part, which is fixed, to be used, particularly small-sized, in the case of slim mancarried electronic aid, due to needing thin tape thickness, because
This base material thickness is preferably 50~250 μm, more preferably 75~150 μm.
In addition, the tensile strength of foaming body base material is 300~1500N/cm2, preferably 500~1300N/cm2, more preferably
For 700~1200N/cm2.It is 100~1000%, preferably 300~700% to cut off intensity.By tensile strength or it is cut to this
The foaming body base material of scope, even the soft base material of foaming can also prevent the processability of double-sided adhesive tape from deteriorating or de-
Fall, attach the low of workability.
Above-mentioned tensile strength is, the use of TENSILON cupping machines by graticule length is sample that 2cm, width are 1cm
In 23 DEG C of 50%RH environment, the maximum intensity that the measuring condition using draw speed as 300mm/min is measured.
Such foaming body base material can enumerate crosslinked polyolefin resin foaming body, crosslinked polyolefin resin foaming
Body is, polyolefin-based resins and thermal decomposable foaming agent are supplied into extruder carries out melting mixing, will be by from extruder
It is extruded as after foamable polyolefin system resin flake is crosslinked with electron ray formed by flake, passes through foaming, extension, thin-walled
Obtained from change.Polyolefin-based resins can use existing known material, preferably comprise it is more than 40 mass %, using with 4
The material of polyethylene-based resin obtained from the aromatic ring alkene metal derivative of valency transition metal.Furthermore it is possible to send out the foaming body
After bubble, through-thickness cuts into slices the foaming body, is manufactured afterwards with hot-rolling extension and belt leather.
Foaming body base material can carry out sided corona treatment, at flame to improve the adaptation with adhesive phase or other layers
Reason, plasma treatment, hot blast processing, the processing of ozone-ultraviolet line, the easily surface treatment such as coating of bonding inorganic agent.Surface treatment
By make it that the infiltration index based on infiltration reagent is more than 36mN/m, preferably 40mN/m, it can obtain excellent with adhesive
Good adaptation.
[adhesive phase]
The adhesive composition of the adhesive phase of the water-proofing double-sided adhesive tape of the present invention is constituted, as long as being formed with upper
The adhesive phase of characteristic is stated, the general adhesive composition for double-sided adhesive tape can be used.It is used as the bonding
Agent composition it is preferable to use acrylic adhesive composition, the acrylic adhesive composition be by individually with（First
Base）Acrylate or（Methyl）Based on the acrylic acid series copolymer that the copolymer of acrylate and other monomers is constituted
Polymer, coordinates the additive such as tackifying resin or crosslinking agent wherein as needed.
As（Methyl）Acrylate, can be enumerated, for example（Methyl）Methyl acrylate,（Methyl）Ethyl acrylate, just
Butyl（Methyl）Acrylate, isobutyl group（Methyl）Acrylate, the tert-butyl group（Methyl）Acrylate, n-octyl（Methyl）Propylene
Acid esters, iso-octyl（Methyl）Acrylate, isononyl（Methyl）Acrylate, cyclohexyl（Methyl）Acrylate, 2- ethyl hexyls
The monomers such as methyl acrylate, can be used more than one or both of these.Wherein, the carbon number of alkyl is 1~8
's（Methyl）Acrylate, particularly n-butyl acrylate are easy to ensure the adaptation with adherend body, and cohesiveness is excellent, because
And it is preferred that.
In acrylic acid series copolymer（Methyl）The amount of acrylate, preferably constitutes the list of acrylic acid series copolymer
80~98.5 mass % in body composition, more preferably 90~98.5 mass %.
In addition, the acrylic acid series copolymer used in the present invention, can be with the highly polar vinyl monomer of copolymerization, as highly polar
Vinyl monomer, can enumerate the monomer with hydroxyl, the monomer with carboxyl, monomer with amide groups etc..
It can be used containing hydroxyl as the monomer with hydroxyl（Methyl）Acrylate, for example：2- ethoxys（First
Base）Acrylate, 2- hydroxypropyls（Methyl）Acrylate, 4- hydroxyl butyl（Methyl）Acrylate, 6- hydroxyl hexyls（Methyl）Propylene
Acid esters etc..
As the monomer with carboxyl, can use acrylic acid, methacrylic acid, itaconic acid, maleic acid,（Methyl）Propylene
Sour dimer, crotonic acid etc., especially preferably use acrylic acid as copolymer composition.
In addition, as with amide groups monomer, can enumerate NVP, N- caprolactams,
Acryloyl morpholine, acrylamide, N, N- DMAAs etc..
As other highly polar vinyl monomers, vinyl acetate, ethylene-oxide-modified amber acid acrylic acid can be enumerated
Ester, 2- acrylamide -2- methyl propane sulfonic acids etc. contain sulfonic monomer etc..
The amount of highly polar vinyl monomer, preferably constitute acrylic acid series copolymer monomer component in 1.5~
20 mass %, are more preferably 1.5~10 mass %, more preferably 2~8 mass %.By containing within the range, it is easy to will bond
Cohesiveness or confining force, the bonding force of agent are adjusted in suitable scope.
When using isocyanates system crosslinking agent as crosslinking agent, the vinyl list with the functional group reacted is used as
Body, preferably comprises the vinyl monomer of hydroxyl, particularly preferred 4- hydroxyls butyl（Methyl）Acrylate, 6- hydroxyl hexyls（Methyl）Propylene
Acid esters.With the amount of the vinyl monomer containing hydroxyl of isocyanates system crosslinking agent reaction, acrylic acid series is preferably constituted
0.01~1.0 mass % of the monomer component of copolymer, especially preferably 0.03~0.3 mass %.
Acrylic acid series copolymer can be by with solution polymerization process, block polymerization, suspended polymerization, emulsion polymerization etc.
Known polymerization copolymerization and obtain, the binding agent based preferred solution polymerization process of water resistance or block polymerization.Polymerization
Initiation method can arbitrarily select following method：Use the peroxide such as benzoyl peroxide or lauroyl system, azobisisobutylonitrile
The hot initiation method of the thermal polymerization of the azo system of nitrile etc., or use acetophenone system, benzoin ether system, benzyl ketals
System, acylphosphine oxide system, benzoin system, the Photoepolymerizationinitiater initiater of benzophenone series ultraviolet irradiation initiation method or
The method of electron ray.
For the molecular weight of the sour based copolymer of aforesaid propylene, gel permeation chromatography is used（GPC）The standard polyphenyl second of measure
The weight average molecular weight of alkene conversion is 40~1,600,000, preferably 60~1,000,000.
In the acrylic adhesive composition used in the present invention, in order to improve the adaptation with adherend body, preferably
Use tackifying resin.As tackifying resin, the rosin series that can illustrate out, newtrex system, newtrex ester system, rosin phenol system,
Stabilization rosin ester system, heterogeneous rosin ester system, hydrogenated rosin ester system, terpenic series, terpene phenolic system, Petropols system,（Methyl）
Acrylic ester resin etc..In use, preferably using the tackifying resin of emulsion-type in Emulsion Adhesive composition.
Especially preferably heterogeneous rosin ester system tackifying resin, newtrex ester system tackifying resin, rosin phenol system thickening are set
Fat, hydrogenated rosin ester system tackifying resin,（Methyl）Acrylic ester resin.
The softening point of tackifying resin is not provided particularly, is 30~180 DEG C, preferably 70 DEG C~140 DEG C.In addition, can
To use one or more kinds of tackifying resins.By coordinating the high tackifying resin of softening point, it may be desirable to higher cementability
Energy.
Using match ratio when acrylic acid series copolymer and tackifying resin, relative to the parts by weight of acrylic acid series copolymer 100
The amount of tackifying resin be preferably 5~40 parts by weight, preferably 10~30 parts by weight.By causing both ratios are should
Scope, it is easy to ensure the adaptation with adherend body.
In acrylic adhesive composition, in order to improve the cohesiveness of adhesive phase, preferably cross-linked binder.As
This crosslinking agent can enumerate isocyanates system crosslinking agent, epoxy crosslinking agent, metal chelating syzygy crosslinking agent, aziridine system
Crosslinking agent etc..Especially preferred polymeric be over after add, make cross-linking reaction carry out type crosslinking agent, be preferably imbued with（First
Base）The reactive isocyanates system crosslinking agent and epoxy crosslinking agent of acrylic acid series copolymer.Handed over as isocyanates system
Connection agent can enumerate first phenylene diisocyanate, 1,5- naphthalene diisocyanate esters, hexamethylene diisocyanate, diphenyl methane two
Isocyanates, XDI, trihydroxy methyl modified toluene support diisocyanate etc..Particularly preferred 3 functional group it is many
Isocyanates based compound.As the isocyanates based compound of 3 functional groups, can enumerate first phenylene diisocyanate and this
A little trimethylolpropane addition product, triphenyl methane isocyanates etc..
As the index of the degree of cross linking, using the gel fraction of insoluble matter after measurement adhesive phase immersion toluene 24 hours
Value.Gel fraction is preferably 25~70 mass %.If in the range of more preferably 30~60 mass %, more preferably 35~55 mass %,
Coherency and cementability are excellent.
In addition, the measurement of gel fraction is carried out according to following.After the coating adhesive composition in peeling sheet is so as to dry
Thickness be 65 μm, with 100 DEG C dry 5 minutes, be used as sample using 50mm square block is cut in the material of 40 DEG C of agings two days.So
Afterwards, weight in advance before the toluene dipping of measurement said sample（G1）, after being impregnated 24 hours with 23 DEG C in toluene solution
The toluene insoluble solution thing of sample is separated by using the metal mesh filter of 300 mesh, measures the residue after being dried 1 hour with 110 DEG C
Weight（G2）, gel fraction is obtained according to following formula.
Gel fraction（Quality %）=（G2/G1）×100
As additive, plasticizer can be arbitrarily added in adhesive composition as needed, softening agent, anti-oxidant
Colouring agent, the levelling of filler, the pigment dyes such as agent, glass or plastic fiber bead microballon metal dust etc.
Additive known to agent, tackifier, water-repelling agent, defoamer etc..
Loss angle tangent in the adhesive phase used in the water-proofing double-sided adhesive tape of the present invention, frequency 1Hz（tan
δ）Peak value be preferably -30 DEG C~0 DEG C, more preferably -20 DEG C~-5 DEG C.By the peak value for the loss angle tangent for making adhesive phase
For the scope, so as to be easy to pay the excellent adaptation with adherend body under normal temperature.
Loss angle tangent（tanδ）It is to utilize by the storage acquired by the measurement of the dynamic viscoelastic as caused by temperature dispersion
Can modulus（G’）, loss elastic modulus（G”）, obtained by formula tan δ=G "/G '.By dynamically being glued as caused by temperature dispersion
The measurement of elasticity, can obtain the loss angle tangent in certain frequency（tanδ）Peak value.
Dynamic visco-elastic property, can be by the kind of monomer that suitably selects to use in the copolymer for constituting adhesive
Class and its ratio, the species of polymerization initiator and its usage amount, the species and usage amount of crosslinking agent or tackifying resin, polymerization
Deng and adjust.
The dynamic visco-elastic property of above-mentioned adhesive phase, by the dynamic viscoelastic wave spectrum in specific frequency and specified temp
Loss angle tangent or loss angle tangent and storage modulus and provide also have, the Dynamic Viscoelastic in display specific frequency
The temperature at the peak of the loss angle tangent of property wave spectrum, or loss angle tangent peak value and provide.In the measurement of dynamic viscoelastic, adopt
Use test for viscoelastic machine（The manufacture of レ オ メ ト リ ッ Network ス companies, trade name：アレス2KSTD）, test film is clipped in and is used as the examination
Between the parallel disk for the measurement portion for testing machine, the storage modulus from -50 DEG C to 150 DEG C is measured with frequency 1Hz（G’）With loss bullet
Property modulus（G”）.Test film formation thickness about 2mm adhesive phase, is clipped between parallel disk and measures.
The thickness of the adhesive phase used in the present invention, though be also easy to ensure in the case of based on slim adhesive tape is made with
The adaptation of adherend body, the thickness of one side is preferably 10~100 μm, more preferably 30~80 μm.
[water-proofing double-sided adhesive tape]
The two-sided tape of the present invention is by using above-mentioned foaming body base material and adhesive phase, and it is suitable with adherend body to show
Adaptation, the immersion from the water of close clearance can be effectively prevented, with excellent water-proof function.
, will be using foaming body base material as SMIS, in the base as the embodiment of the water-proofing double-sided adhesive tape of the present invention
Composition of the two sides of material provided with adhesive phase is used as basic composition.Between base material and adhesive phase can direct lamination, can also
There are other layers.These modes can be properly selected according to use, further pay adhesive tape dimensional stability or stretching
During intensity, the laminate layers such as polyester film can be set, light shield layer can be set when paying adhesive tape light-proofness, light reflection is being ensured
Reflection layer can be set during property.When setting these other layers, the layer using water proofing property is used as other layers.
As light shield layer, the material that convenient use is formed by the ink of the colouring agent containing pigment etc., by black ink structure
Into layer, be preferably used because light-proofness is excellent.As reflecting layer, the layer that can be formed with convenient use by white ink.This
The thickness of a little layers is preferably 2~20 μm, particularly preferred 4~6 μm.By causing thickness to be the scope, it is not easy to produce by ink
Cure shrinkage caused by base material curling, the processability of adhesive tape is good.
The water-proofing double-sided adhesive tape of the present invention can be manufactured by known customary way.For example, can enumerate in foaming
On body base material directly or on other layers of the surface that foaming body epibasal tier is folded, coating acrylic adhesive composition is simultaneously
The direct print method for drying it, or be coated with acrylic adhesive composition in peeling sheet and make after its drying, laminating
Transfer printing on foaming body base material or other layer surfaces.
The thickness of water-proofing double-sided adhesive tape of the present invention can suitably be adjusted according to the mode used, be 70~
1400μm.The part of electronic equipment, which is fixed, to be used, in the case of particularly small-sized, slim mancarried electronic aid, due to requiring relatively thin
Tape thickness, preferably 100~300 μm, particularly preferably 150 μm~250 μm.By causing tape thickness to be the thickness,
It can also be suitably applicable for thin small mancarried electronic aid, excellent water-proof function can be realized in addition.
The face adhesive strength 1 that the water-proofing double-sided adhesive tape of the present invention is measured by following measuring condition, preferably 100~
200N/4cm2, more preferably 120~180N/4cm2。
The measuring condition of above-mentioned face adhesive strength 1 is as follows.
1) with 23 DEG C, in pair of the thickness for the long 4cm of the parallel stickup wide 5mm of two panels on the acrylic panel of 2mm, 5cm square block
Face adhesive tape.
2) then, central part provided with diameter 1cm hole, thickness 2mm, 10 × 15cm rectangular smooth ABS plates
On, the acrylic panel with double-sided adhesive tape by 1) making is pasted, to cause the center of acrylic acid and the center of ABS plates
Unanimously, test film is used as within 1 hour with being placed after 2kg roller repeatedly 1 pressurization at 23 DEG C.
3) hole of ABS plates is passed through from the ABS sides of test film, with the stretching for the stainless steel manufacturing probe for being provided with diameter 8mm
Testing machine presses acrylic panel, the intensity that measurement acrylic panel is peeled off with 10mm/ points of condition.
Further, water-proofing double-sided adhesive tape of the invention, the face bonding strength 2 measured by following measuring conditions, preferably
For 250~600mJ, preferably 350~600mJ.
The measuring condition of above-mentioned face adhesive strength 2 is as follows.
1) double-sided adhesive tape is cut to after 2cm square blocks and be pasted onto on the acrylic panel of thick 2mm, 2cm square block.
2) acrylic panel with double-sided adhesive tape is pasted onto into central part has diameter 1cm hole, thickness 2mm, 4cm square
On the polyamide board (40 mass % glass fibres of addition) of block, to cause the central part of acrylic panel and the central part of polyamide board
Unanimously, test film is used as within 24 hours with being placed at 23 DEG C after 2kg roller repeatedly 1 pressurization.
3) test film is arranged on to profile 4cm square block, long 3cm, thickness 5mm stainless steel upward with polyamide side
On base.
4) by the hole of polyamide side on acrylic panel, by front end have diameter 5mm, long 1cm projection weight
100g brass rounding cone, continuously falls (per stage three times) from high 10cm with 10cm interval, measures validation test piece gluing
The height when peeling or destruction of band.
5) calculated by measurement result and fall energy mJ (=9.8 × height (m) × 100g).
The water-proofing double-sided adhesive tape of the present invention shows the adaptation suitable with adherend body, can effectively prevent
From the immersion of the water of close clearance, with excellent water-proof function.Therefore, promoted even in slimming, the volume limit in framework
System is strict, it is difficult to set in the mancarried electronic aid of water-stop component of other approach, also can effectively pay water-proof function.
, can be with such as electronic hand is thin, mobile phone, PHS, camera, music player in mancarried electronic aid as specific occupation mode
The laminating between the fitting of protection panels and framework, framework, framework and sheet numerical key or touch suitable for information display section
The laminatings of the input units such as panel, the fitting of framework and decoration piece, fixation of other various components or module etc..
Embodiment
(binder solution A modulation)
, will in the reaction vessel for possessing mixer, reflux condenser, thermometer, dropping funel and nitrogen inlet
The parts by weight of butyl propyleneglycol acid esters 96.4, the parts by weight of acrylic acid 3.5, the parts by weight of 2- hydroxy ethyl methacrylates 0.1, be used as polymerization trigger
The 2 of agent, the parts by weight of 2 '-azobis isobutyronitrile 0.1 are dissolved in the solvent being made up of the parts by weight of ethyl acetate 100, poly- with 70 DEG C
Close 12 hours, obtain the acrylic acid series copolymer that weight average molecular weight is 800,000 (polystyrene conversions).Then, relative to acrylic acid
The parts by weight of based copolymer 100, ペ Application セ Le D135 (pentaerythritol ester of newtrex) 10 weights of the chemical society's manufacture in the waste river of addition
Measure the super ester of the chemical society's manufacture of part and waste river（スーパーエステル）A100 (glyceride of heterogeneous rosin) 10 weight
Part, and add ethyl acetate and uniformly mixed, the binder solution A of acquisition nonvolatile component 40%.
(binder solution B modulation)
, will in the reaction vessel for possessing mixer, reflux condenser, thermometer, dropping funel and nitrogen inlet
The parts by weight of butyl propyleneglycol acid esters 44.9, the parts by weight of 2- ethylhexyl acrylates 50, the parts by weight of acrylic acid 2, the weight of vinyl acetate 3
Part, the parts by weight of 4- hydroxyl butyl propyleneglycols acid esters 0.1, it is dissolved in as the parts by weight of 2,2 '-azobis isobutyronitrile 0.1 of polymerization initiator
In the solvent being made up of the parts by weight of ethyl acetate 100, it is polymerize 12 hours with 70 DEG C, obtains weight average molecular weight for 700,000 (polyphenyl second
Alkene convert) acrylic acid series copolymer.Then, relative to the parts by weight of acrylic acid series copolymer 100, the chemical society's manufacture in the waste river of addition
ペ Application セ Le D135 (pentaerythritol ester of newtrex) 10 parts by weight, and add ethyl acetate and uniformly mixed, obtain
The binder solution B of nonvolatile component 45%.
[embodiment 1]
（The modulation of double-sided adhesive tape）
Relative to above-mentioned binder solution A100 the parts by weight, " U of the Japanese polyurethane company manufacture of 1.1 parts by weight of addition
ロネートL-45”（Isocyanates system crosslinking agent, solid constituent 45%）, after stirring 15 minutes, using dried thickness as 50 μm
Mode, on the PET film for being coated on 75 μm of the thickness that lift-off processing is crossed, dried 3 minutes at 80 DEG C, form adhesive phase.
Then, in black polyolefin foaming body（Thickness：100 μm, 3 times of expansion ratio, 25% compressive strength：70kPa, draws
Stretch intensity：1010N/cm2, make the infiltration index on surface be 60mN/m by sided corona treatment）Two sides, respectively fit a piece of described viscous
After mixture layer, the roller for pressing 5kg/cm with line is laminated.Then, maturation 48 hours at 40 DEG C, obtain the double of 200 μm of thickness
Face adhesive tape.
[embodiment 2~8, comparative example 1,2]
The foaming body base material recorded using table 1~3, instead of black polyolefin foaming body, in addition, with embodiment
1 same method, obtains double-sided adhesive tape.
[embodiment 9]
Binder solution A is replaced using binder solution B, in addition, obtains double with method similarly to Example 1
Face adhesive tape.
[comparative example 3]
In possessing the stainless steel reaction vessel of mixer, reflux condenser, thermometer and nitrogen inlet, mixing third
The parts by weight of olefin(e) acid 2- ethylhexyls 90, the parts by weight of acrylic acid 10, " the ダ ロ of チ バ ス ペ シ ャ リ テ ィ ケ ミ カ Le company manufacture
The parts by weight of キ ュ ア 1173 " 0.2, then, with fluorescence chemical light irradiation ultraviolet, obtain the mass % of aggregate rate 5 acrylic resin
Slurry.Relative to the parts by weight of acrylic syrup 100, polypropyleneglycol diacrylate is added（The manufacture of chemical company of Xin Zhong villages
“APG700”）0.3 parts by weight, " parts by weight of Le シ リ Application TPO " 0.1, the glass microsphere of BASF AG's manufacture（Fuji シ リ シ ア are public
Take charge of " H-40 " of manufacture, density 0.4g/cm3, 50 μm of average grain diameter）8.55 parts by weight, and equably mix, carry out vacuum defoamation
To prepare active energy beam solidification compound.
By the thickness after ultraviolet curing in the way of 200 μm, said composition is coated on the μ of thickness 75 that lift-off processing is crossed
On m PET film, after the PET film for 75 μm of the thickness that laminating lift-off processing is crossed, fluorescence chemical lamp is used（300~400nm of wavelength,
350nm centers）, using unilateral exposure intensity as 0.32mW/cm2, from both sides irradiation ultraviolet radiation 6 minutes, obtain 200 μm of thickness
Double-sided adhesive tape.
[comparative example 4]
In possessing the stainless steel reaction vessel of mixer, reflux condenser, thermometer and nitrogen inlet, mixing third
The different parts by weight of monooctyl ester 90 of olefin(e) acid, the parts by weight of acrylic acid 10, " the イ Le ガ キ of チ バ ス ペ シ ャ リ テ ィ ケ ミ カ Le company manufacture
The parts by weight of ュ ア 651 " 0.2, then, with fluorescence chemical light irradiation ultraviolet, obtain the mass % of aggregate rate 5 acrylic syrup.
Relative to the parts by weight of acrylic syrup 100, the parts by weight of 1,6- of addition hexanediyl esters 0.3, チ バ ス ペ シ ャ リ
" parts by weight of イ Le ガ キ ュ ア 651 " 0.1, the glass microsphere of テ ィ ケ ミ カ Le company manufacture（The manufacture of シ リ シ ア companies of Fuji
" H-40 ", density 0.4g/cm3, 50 μm of average grain diameter）8.55 parts by weight, fluorine system surfactant（Daikin Industries company manufactures
“TG-656”）0.2 parts by weight, and equably mix, carry out vacuum defoamation.The mixture is supplied in oscillatory type stirring mixing
Machine, with the scattered nitrogen of about 15% volume % mixing, obtains including the coating fluid of the fine bubble below 400 μm of average diameter.
By the thickness after ultraviolet curing in the way of 200 μm, the μ of thickness 75 that the coating solution is crossed in lift-off processing
On m PET film, after the PET film for 75 μm of the thickness that laminating lift-off processing is crossed, fluorescence chemical lamp is used（300~400nm of wavelength,
350nm centers）, using unilateral exposure intensity as 0.32mW/cm2, from both sides irradiation ultraviolet radiation 6 minutes, obtain 200 μm of thickness
Double-sided adhesive tape.
It is double for what is obtained in the foaming body base material, above-described embodiment and the comparative example that are used in above-described embodiment and comparative example
Face adhesive tape, is evaluated as follows.Obtained result is shown in table 1~3.
[flow direction of foaming body base material and the mean air bubble diameter of width]
Foaming body base material is all cut into 1cm on width and flow direction, SEM is used（SEM）
（Hitachi is manufactured, S-2380N）The cut surface middle body of the foaming body base material of well cutting is amplified to 50 times, then,
In the way of the cut surface of foaming body base material is accommodated in photo after the total length in its base material thickness direction, to the width of foaming body base material
Taken pictures in the section of degree direction or flow direction.For obtained photo, before the amplification of flow direction or width
Physical length for 2mm cut surface present in bubble diameter be all measured, it is straight to calculate average bubble by its average value
Footpath.
[mean air bubble diameter of the thickness direction of foaming body base material]
The thickness of foaming body base material to being taken pictures with SEM is measured, and is averaged with the flow direction of foaming body base material
The measure identical condition of bubble diameter carries out SEM and taken pictures.For obtained photo, visually to count appointing for foaming body base material
The number of bubbles of thickness direction present in meaning part, by following formula, calculates the mean air bubble diameter of thickness direction.
The mean air bubble diameter of thickness direction（μm）The thickness of=foaming body base material（μm）The number of/bubble
It is measured at any 3, value is averaged as the mean air bubble diameter of thickness direction.
[double-sided adhesive tape thickness]
Peeled off from double-sided adhesive tape after stripping film, with the ダ イ ヤ Le シ Network ネ ス ゲ ー ジ G manufactured by the rugged making of tail
Type is measured.
[tensile strength of double-sided adhesive tape]
Graticule interval 2cm will be processed into（The flow direction of polyolefin foaming body）, width 1cm test film double-sided adhesive
Plate（Peel off stripping film）Cut within 300mm/ minutes with draw speed, determine its intensity now.
[face adhesive strength 1]
1）At 23 DEG C, to thickness 2mm and the acrylic panel of 5cm square（The beautiful sun of Mitsubishi（Strain）Acrylite MR200 " business
The name of an article ", tone：It is transparent）Abreast attach the long 4cm of 5mm 2 wide double-sided adhesive tape.
2）Then, there is thickness 2mm, the 10 × 15cm rectangular ABS plates in diameter 1cm hole to central part（タキ
ロ Application company manufactures, tone：Natural color, corrugationless）, attached in the mode that the center of acrylic panel is consistent with the center of ABS plates
By 1）The acrylic panel with double-sided adhesive tape made, after reciprocal 1 pressurization of 2kg rollers, places 1 hour to make at 23 DEG C
For test film.
3）The hole of ABS plates is passed through from the ABS sides of test film, is tried with the stretching for the stainless steel manufacturing probe for being mounted with diameter 8mm
Machine is tested, acrylic panel was pressed with the condition of 10mm/ minutes, the intensity for peeling off acrylic panel is determined.
[face adhesive strength 2]
1）Double-sided adhesive tape is cut into after 2cm square, the acrylic panel of thickness 2mm, 2cm square is attached at.
2）There is the polyamide board of thickness 2mm, 4cm square in diameter 1cm hole in central part（Mitsui Chemicals（Strain）レニ
ー " trade (brand) name ", adds 40wt% glass fibres）On, with the central part of the acrylic panel side consistent with the central part of polyamide board
Formula attaches the acrylic panel with double-sided adhesive tape, after reciprocal 1 pressurization of 2kg rollers, is used as within 24 hours in 23 DEG C of placements
Test film.
3）By test film by polyamide side be arranged in the way of upward profile 4cm square, length 3cm, thickness 5mm it is stainless
On the base of steel.
4）Through the hole of polyamide side, make top that there is diameter 5mm, the heavy 100g of length 1cm projection brass rounding
Cone is continuously fallen in acrylic panel from height 10cm with 10cm interval（1 stage 3 times）, measure can confirm there is glue on test film
With height when peeling off or destroying.
5）Calculated from measurement result and fall energy mJ（=9.8 × height（m）×100g）.
[waterproof test 1]
1）Double-sided adhesive tape is made to profile 65mm × 45mm, width 2mm frame-like sample, thick 2mm, profile is attached to
After 65mm × 45mm acrylic panel, then thick 2mm, profile 65mm × 45mm ABS plates are attached at, with back and forth pressurization 1 time of 2kg rollers
Afterwards, it is used as test film within 24 hours in 23 DEG C of placements.
2）The 5 mass % surfactant solutions by test film at 23 DEG C（The ジ ョ イ that P＆G companies manufacture are diluted with running water
To be made）Dipping takes out test film after 10 minutes, implements the process of the placement 10 minutes of 30 circulations, then, evaluates again
Immersion is whether there is when being impregnated in solution to enter in framework.
○：Without immersion ×：There is immersion
[waterproof test 2]
1）Double-sided adhesive tape is made to profile 65mm × 45mm, width 2mm frame-like sample, thick 2mm, profile is attached to
After 65mm × 45mm acrylic panel, then it is attached at thick 2mm, the central portion of profile 150mm × 100mm rectangular ABS plates
（Fig. 1）.After back and forth being pressurizeed 1 time with 2kg rollers, test film is used as within 24 hours in 23 DEG C of placements.
2）In Du Pont's formula shock machine（テ ス タ ー Industry Co., Ltd manufactures）Base on, set length 150mm,
Wide 100mm, height 45mm U-shaped determine platform（Thickness 5mm aluminium manufacture）, thereon with test film, acrylic panel side down
Mode placing（Fig. 2）.The core that hits for making diameter 25mm, quality 300g stainless steel from ABS plates side falls from height 50cm positions
Under, 5 Secondary Shocks were applied with 10 seconds intervals to the core of ABS plates（Fig. 3）.When give impact and acrylic panel come off when, just
This terminates experiment.
3）5 mass % surfactant solutions of the test film of impact at 23 DEG C will be given（With running water dilution P＆G companies
The ジ ョ イ of manufacture are made）Dipping takes out test film after 10 minutes, implements the process of the placement 10 minutes of 30 circulations, so
Afterwards, evaluate to whether there is to soak when being impregnated in solution again and enter in framework.
◎：Without immersion, the outward appearance of foaming body does not change；○：Confirm without immersion, but in a part for foaming body layer
There is small slight crack；×：There is immersion, or come off in drop impact stage acrylic panel.
Table 1
Table 2
Table 3
Understood as shown in above-mentioned embodiment 1~9, water-proofing double-sided adhesive tape of the invention, with excellent with adherend
Adaptation and water proofing property.On the other hand, the face adhesive strength 2 of the double-sided adhesive tape of comparative example 1 is low, during due to drop impact
Foaming body, which ftractures, not being resistant to waterproof test 2.In addition, the double-sided adhesive tape of comparative example 2~4 is found in water proofing property
There is immersion in experiment 1, it is impossible to realize water proofing property.In addition, the double-sided adhesive tape of comparative example 3~4 falling in waterproof test 2
Also coming off for adhesive tape is produced during impact.
Claims (6)
1. a kind of water-proofing double-sided adhesive tape, it is the double-sided adhesive tape with foaming body base material and adhesive phase, and it is special
Levy and be,
25% compressive strength of the foaming body base material is that 50~160kPa, tensile strength are 300~1500N/cm2, expansion ratio
It is 2~4 times,
The foaming body base material is the foaming body base material of polyolefin,
The foaming structure of the foaming body base material is separated foam structure.
2. water-proofing double-sided adhesive tape according to claim 1, wherein, the thickness direction of the foaming body base material it is flat
Equal bubble diameter is 1~100 μm, and the mean air bubble diameter of flow direction and width is 1.2~700 μm.
3. water-proofing double-sided adhesive tape according to claim 1 or 2, wherein, the flow direction of the foaming body base material
Mean air bubble diameter relative to the ratio between mean air bubble diameter of thickness direction be 1.2~15.
4. water-proofing double-sided adhesive tape according to claim 1 or 2, wherein, the width of the foaming body base material
Mean air bubble diameter relative to the ratio between mean air bubble diameter of thickness direction be 1.2~15.
5. water-proofing double-sided adhesive tape according to claim 1 or 2, wherein, described adhesive layer includes acrylic acid series
Copolymer and tackifying resin, tackifying resin are 5~40 parts by weight relative to the content of the parts by weight of acrylic acid series copolymer 100.
6. water-proofing double-sided adhesive tape according to claim 1 or 2, wherein, the gel fraction of described adhesive layer is 25
~70%.
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| JP2008-265114 | 2008-10-14 | ||
| JP2008265114A JP4623198B2 (en) | 2007-10-12 | 2008-10-14 | Double-sided adhesive tape for waterproofing |
| CN200910128297.9A CN101724355B (en) | 2008-10-14 | 2009-03-30 | Water-proofing double-sided adhesive tape |
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| US10557061B2 (en) | 2011-12-26 | 2020-02-11 | Dic Corporation | Adhesive tape |
| JP5370796B1 (en) | 2012-03-22 | 2013-12-18 | Ｄｉｃ株式会社 | Adhesive tape |
| JP5477517B1 (en) * | 2012-04-13 | 2014-04-23 | Ｄｉｃ株式会社 | Adhesive tape |
| TWI638023B (en) * | 2012-06-29 | 2018-10-11 | 早川橡膠股份有限公司 | Double-sided adhesive tape and adhesion method using the same |
| KR101550095B1 (en) * | 2012-12-11 | 2015-09-03 | (주)엘지하우시스 | Adhesive tape |
| CN112143397B (en) * | 2013-11-22 | 2022-07-12 | 日东电工株式会社 | Double-sided adhesive sheet |
| KR102205659B1 (en) * | 2013-11-29 | 2021-01-22 | 삼성디스플레이 주식회사 | Display device and method of manufacturing the same |
| JP2015155528A (en) * | 2014-01-15 | 2015-08-27 | 日東電工株式会社 | double-sided adhesive sheet |
| JP6262553B2 (en) * | 2014-01-31 | 2018-01-17 | 早川ゴム株式会社 | Bonding method using thermoplastic double-sided adhesive tape |
| CN106414638B (en) * | 2015-08-25 | 2018-09-11 | 株式会社寺冈制作所 | Adhesive tape |
| WO2019100222A1 (en) * | 2017-11-21 | 2019-05-31 | 华为技术有限公司 | Ingress protection component, terminal, and method for manufacturing ingress protection terminal |
| KR101974028B1 (en) | 2018-07-30 | 2019-04-30 | 변인섭 | Double-sided tape for touch screen panel |
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| CN1768097A (en) * | 2003-07-16 | 2006-05-03 | 积水化学工业株式会社 | Foam sheet of crosslinked polyolefin resin, process for producing the same, and pressure-sensitive adhesive tape |
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| US4849468A (en) * | 1985-06-19 | 1989-07-18 | Toyoda Gosei Co., Ltd. | Adhesive compositions |
| JPH10219204A (en) | 1997-02-06 | 1998-08-18 | Sekisui Chem Co Ltd | Pressure adhesive type double-side tacky tape |
| JPH10316944A (en) * | 1997-05-22 | 1998-12-02 | Nitto Denko Corp | Adhesive tape or sheet |
| JP2000239632A (en) * | 1999-02-17 | 2000-09-05 | Dainippon Ink & Chem Inc | Strongly-adherent strippable pressure-sensitive adhesive and pressure-sensitive adhesive tape |
| JP2002037829A (en) | 2000-07-27 | 2002-02-06 | Toyo Quality One Corp | Self-adhesive foam |
| JP2003013028A (en) * | 2001-06-29 | 2003-01-15 | Sekisui Chem Co Ltd | Acrylic pressure-sensitive adhesive composition and pressure-sensitive adhesive tape |
| JP2003147292A (en) | 2001-11-13 | 2003-05-21 | Sekisui Chem Co Ltd | Double-sided self-adhesive tape |
| JP2004323842A (en) * | 2003-04-11 | 2004-11-18 | Sekisui Chem Co Ltd | Crosslinked polyolefin resin foamed sheet and pressure-sensitive adhesive tape |
| US8056292B2 (en) * | 2004-10-28 | 2011-11-15 | Diversified Foam Products, Inc. | Low relflected-sound-pressure-level, low moisture-vapor-transmission-rate flooring system |
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| CN1768097A (en) * | 2003-07-16 | 2006-05-03 | 积水化学工业株式会社 | Foam sheet of crosslinked polyolefin resin, process for producing the same, and pressure-sensitive adhesive tape |
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