PHOTOCURABLE ADHESIVE COMPOSITION, MANUFACTURING METHOD OF SAME, AND ADHESIVE FILM

Hereinafter, one embodiment of the present invention detailed the on-sensors other. But, this is by way of example number so that when, the present invention is defined by the present invention refers to one category of claim number [...] 802.11a packets not only disclosed.

One embodiment of the present invention, a glass transition temperature of a glass transition temperature of 10 °C to 110 °C -70 °C -20 °C number 1 to number 2 including (meth) in monomer and monomer polymerized (meth) acrylic monomer component in acrylic polymer; (meth) acrylic monomer; and optical disclosure number including a photocurable adhesive composition number [...] substrate. Generally, in the case of cathode ray tube with adhesive tape applied to the mobile Image or the like display device impact resistance, high temperature properties such as consonant and etc. [...] retaining force and hot.

The, said photocurable adhesive composition as carry, a glass transition temperature of different heterogeneous monomer composition for polymerization including performing properly illuminated by bulk polymerization is formed in the impact resistance, a retaining force can be an entire [...] and hot.

Said photocurable adhesive composition including (meth) acrylic monomer component including said number 1 monomer and said number 2 monomer for polymerization composition for the (meth) acrylic syrup bulk polymerization by light irradiation be a the conductive pattern is exposed.

Thereby said photocurable adhesive composition comprises for number thereof can not. For number of organic is e.g., d ethyl ether, tetrahydrofuran mixable, dichloro methane, chloro methanes, xylene (xylene), dimethyl formamide, cyclohexane, hexane, chloroform and it can be at least one selected from the group consisting of a combination of, not limited to and including both kind publicly known in the art meaning are disclosed.

The, said photocurable adhesive composition by polymerization reaction is disclosure illuminated formed by photopolymerization bulk can be implementing fixes the signal-to-noise properties.

In addition, since the number for a solution polymerization or not including machie of number, such as emulsion polymerization addition of required total environment-friendly than large number, high yields can be reduced.

In addition, said photocurable adhesive composition at room temperature by a light-blocking completely stop the polymerization temperature according polymerization reaction is not suitable heat is by a processing of the polymerization reaction is disclosure compared to bulk heat polymerization temperature excellent in storage stability disclosed.

About 90% by weight (meth) acrylic monomer component polymerization said composition for said total of about 99. 5% by weight can be said.

Disclosure number can be said polymerization composition can comprise further includes, as said polymerization disclosure number further comprises optical disclosure number can be.

Said optical disclosure number is for example, for the preparation of an ether (Benzoin Ethers), benzyl d alkyl [khey mask (Benzyl Dialkyl Ketals), benzophenone (Benzophenone), α2 (Acetophenone) acetoacetoxy-functional, TPO (2, 4, 6 a-Trimethylbenzoyl diphenylphosphineoxide) and combinations thereof including at least one selected from the group consisting but, the number is not one.

Said monomer composition for polymerization having hydroxy groups, monomer having carboxyl, nitrogen-containing monomer having a functional group can be selected from the group consisting one and combinations thereof.

Said hydroxyethyl (meth) acrylate monomer having hydroxy groups, 4 - hydroxy butyl (meth) acrylate, 5 - hydroxypentyl (meth) acrylate, hexyl (meth) acrylate 6 - hydroxy, 10 - hydroxy (meth) acrylate and the like and it will be burnt, said having carboxyl monomer acrylic acid, methacrylic acid, compress [...], maleic acid, maleic anhydride, itaconic, fumaric acid, glycolic acid, acid, acrylic acid dimer, meta acrylic acid dimer, tri-acrylic acid oligomer, acrylic acid tetra disease or condition, such as disease or condition may be methacrylic acid 2, said nitrogen-containing functional group monomer that is N - vinyl blood neel money, car pro [lak burning, N - vinyl, acrylic with the wool [lu pawl phosphorus which rises, acrylonitrile, acrylamide, N, N - dimethyl acrylamide is provided to be used, not limited to 2000.

Said photocurable adhesive composition as aforementioned, said said (meth) acrylic syrup may be formed by bulk polymerization, thereby a glass transition temperature of a glass transition temperature of 10 °C to 110 °C -70 °C -20 °C number 1 to number 2 including (meth) in monomer and monomer polymerized (meth) acrylic monomer component in acrylic polymer can be.

Said photocurable adhesive composition from about 40% by weight of at least about 10% by weight of said (meth) acrylic polymer can be said.

Said number 1 monomer e.g., n - propyl acrylate, n - 2 it will be burnt acrylate, 2 - hydroxyethyl acrylate, 4 - hydroxy butyl acrylate, 2 - ethyl [...], ethyl acrylate, isopropyl acrylate, neopentyl acrylate, hexyl acrylate, [...] acrylate, octyl acrylate, it will soak acrylate, it will soak at least one methacrylate and combination thereof can be selected from the group consisting. 2 - ethylhexyl acrylate (EHA) specifically said number 1 monomer may be included to further enhance initial adhesive force thereby being capable can be excellent diameter embodying gradation number.

In one embodiment, said number 1 as monomer, there can be free n - butyl acrylate, thus a more excellent workability can be a stand-alone number smell during operation can be implemented.

Said number 2 monomer e.g., methyl (meth) acrylate, ethyl (meth) acrylate, (IBOA) methacrylated acrylate, acrylic acid and combination thereof can be at least one selected from the group consisting.

Said (meth) acrylic monomer to said number 2 main components of total monomer weight ratio of monomer to form a polymer about 1:0 said number 13 implementation being about 1:1. The weight ratio of said (meth) acrylic polymer within a range by having a glass transition temperature of said inclination can be an entire group consisting of high temperature properties.

Said (meth) acrylic polymer glass transition temperature of from about about -60 °C implementation being -10 °C. By having a glass transition temperature in the range of said impact, a retaining force can be an entire [...] and hot. Specifically, a glass transition temperature less than about -60 °C temperature maintaining force when said pressure drop greater than about -10 °C when door is constructed by my repelling characteristic number reduced wettability fluoroelastomeric and flow tides.

Weight average molecular weight of said (meth) acrylic polymer from about about 500, 000g/mol implementation being 3,000,000g/mol. Said even under a high temperature condition by having a weight average molecular weight in the range of resistance against an external shock resistance can be improved.

Said (meth) acrylic polymer as a component of a separate said photocurable gradually composition, said (meth) acrylic monomer can be, said (meth) acrylic monomer for polymerization of (meth) conducting said bulk composition present in said formed be a special acrylic syrup. (Meth) acrylic monomer and thereby said monomer and said number 2 can be monomer of said number 1.

About 55% by weight (meth) acrylic monomer said total of said photocurable adhesive composition comprising from about 89% by weight can be.

About 5% to about 30% polymerization of (meth) acrylic syrup said conversion may have. Said polymerization of said monomer composition for polymerization conversion rate is included in the (meth) acrylic polymer can be means to polymerization conversion.

Said polymerization of (meth) acrylic polymers by having said conversions within the range to said adhesive forming a cured product of the composition is an aqueous adhesive composition capable of implementing said adhesive and hot shear properties for curing of the conditions of the curing process according to a further purpose of the invention and in a wide range can be adjustable to various physical properties.

Said photocurable adhesive composition comprising said disclosure number can be light, said optical disclosure number said polymerization included within the composition of the previously mentioned kind of light disclosure number efined.

100 parts by weight of said (meth) acrylic polymer is said optical disclosure number about 0. 1 parts by weight to about 0. 5 parts by weight of a can. In the range of content by said adhesive composition within the photocuring reaction while remaining a stand-alone optical disclosure number number sufficiently to advance said unreacted developing potentials are generated by or minimize can effectively prevent the deterioration of physical properties by (migration).

Said photocurable adhesive composition e.g., crosslinked number, UV stable number, anti-oxidation number, and combination thereof further includes the addition of one or more selected from the group consisting number but, not limited to 2000.

Said photocurable adhesive the compositions have a viscosity from about about 2, 000cps implementation being 10, 000cps about 20 °C. Said with a viscosity in the range of each components can be mixed more uniform formed e.g., film, tape, hereinafter for more absorbing can be machined.

Photocurable adhesive composition from said upper adhesive film prepared by the number or double-faced adhesive tape display touch screen panel reinforcement or to secure, at the top of the means of display device such as optical member can be used, e.g., optical, specifically bonded composition can be touch screen panel application.

Another embodiment of the present invention, photo-curing adhesive film including said photocurable adhesive composition cargo number [...] substrate. Said photocurable adhesive composition in one embodiment the aforementioned efined.

Said adhesive composition for photo-curing reaction takes place in the photocuring said freight can be formed. For example said photocuring, about 100 mJ/cm² To about 1,000 mJ/cm² About 1 minutes to about 10 minutes light quantity is performed but, not limited to 2000.

About 10 m to about 200 micro m the thickness of the adhesive film said micro implementation being.

Curing said photo is violated for the system 1 according to the small e.g., about 50% to about 80% implementation being:

[1 is violated]

Also cured (%)=W_f /W_i X 100

In said 1 is violated, said W_i The center of the cured samples is obtained before the main cut and immersed weight number for components, said W_f The specimen is immersed for said number mm and a regular period, then using the center of the big weight left after every other filter device.

The type and number of said number for said specimen is left to soak out period for measuring the curing degree depending can be cured.

An appropriate number for said certain voltage can be measured in sequence number example, but toluene can be used, the number is not one. The specimen can be appropriately selected for said number can be left to soak out time, e.g., about 24 time but, the number is not one.

Excellent adhesion and excellent high temperature properties by having in the range of said curing degree can be implementing.

Said adhesive it will bloom, [lung impact strength not less than about 500mJ to about 1, 000mJ implementation being. Said external impact by having in the range of impact strength effectively absorbs implementing excellent impact resistance can be, e.g., used for fixing of window panel mobile phone applications, such as attaching mobile device performance degradation of damage or breakage can be prevented effectively.

Said adhesive film is about 2,000 g/in to about 3,000 g/in of the wafer implementation being. In the range of adhesion mediated by having said same is attached in a fixed predetermined components capable of more stable.

As aforementioned, said adhesive film impact, [...], excellent high temperature properties such as low-temperature maintaining force levels for realizing a reinforcement or to secure a touch screen panel to a top of the first passivation layer, such as for use for securing the optical member at the top of the display panel can be hereinafter, e.g., optical, specifically touch screen panel can be adhesive film for application.

Another embodiment of the present invention, a glass transition temperature of a glass transition temperature of 10 °C to 110 °C -70 °C -20 °C number 1 to number 2 including (meth) in monomer and acrylic monomer component for polymerization monomer in including the steps of providing a composition; and said polymerization composition to about 100 mJ/cm² To about 1,000 mJ/cm² About 1 minutes to about 10 minutes quantity light in a bulk polymerization with photocurable adhesive composition by performing step number tank; a manufacturing method including a photocurable adhesive composition number [...] substrate. Said manufacturing method by number can be photocurable adhesive composition of one embodiment the aforementioned high pressure liquid coolant.

In said manufacturing method, a glass transition temperature of a glass transition temperature of 10 °C to 110 °C -70 °C -20 °C number 1 to number 2 including (meth) in monomer and monomer including acrylic monomer component in the mouldable composition for polymerization can be.

Said number 1 monomer as e.g., n - propyl acrylate, n - 2 it will be burnt acrylate, 2 - hydroxyethyl acrylate, 4 - hydroxy butyl acrylate, 2 - ethyl [...], ethyl acrylate, isopropyl acrylate, neopentyl acrylate, hexyl acrylate, [...] acrylate, octyl acrylate, it will soak acrylate, methacrylate and combination thereof it will soak at least one selected from the group consisting the mouldable composition for polymerization can be said to include, 2 - ethylhexyl acrylate (EHA) specifically to include can be prepared.

Said monomer composition for polymerization as said number 1, does not contain n - butyl acrylate can be prepare, thereby smell during operation a number can be a stand-alone can be implementing more has excellent workability.

Said number 2 monomer (hard monomer) as for example, methyl (meth) acrylate, ethyl (meth) acrylate, (IBOA) methacrylated acrylate, acrylic acid and combination thereof at least one selected from the group consisting the mouldable composition for polymerization can be said to include.

About 90% by weight (meth) acrylic monomer component polymerization said composition for said total of about 99. 5% by weight comprising can be prepare.

Said polymerization composition can comprise further includes disclosure number can be prepare, as said polymerization disclosure number further comprises optical disclosure number can be, in one embodiment the aforementioned disclosure number efined coupled to said light.

Said polymerization composition comprises not can be prepare for number. As carry, said composition for polymerization by light irradiation for a number since polymerization reaction is by photopolymerization bulk disclosure and does not, thereby, including a number or for solution polymerization, such as emulsion polymerization addition of requiring large number total environment-friendly than, high yields can be reduced.

In addition, said photocurable adhesive composition at room temperature by a light-blocking completely stop the polymerization temperature according polymerization reaction is not suitable heat is by a processing of the polymerization reaction is disclosure compared to bulk heat polymerization temperature excellent in storage stability disclosed.

In said manufacturing method, said polymerization composition to about 100 mJ/cm² To about 1,000 mJ/cm² About 1 minutes to about 10 minutes quantity light in a bulk polymerization with photocurable adhesive composition of a high pressure liquid coolant number can be performed.

The step number in said photocurable adhesive composition bath, (meth) acrylic polymer is formed, said (meth) acrylic monomer to said number 2 main components of total monomer weight ratio of monomer to form a polymer about 1:0 said number 13 to about 1:1 (meth) acrylic polymer can be said to be formed. Said weight ratio in the range of (meth) acrylic polymer glass transition temperature by formed to have said inclination can be an entire group consisting of high temperature properties.

Said photocurable adhesive composition to about 10 weight % to about 40% by weight of said (meth) acrylic polymer to include number bath 1308.

Said (meth) acrylic polymer can be formed to have a glass transition temperature of from about about -60 °C -10 °C. By having a glass transition temperature in the range of to said impact, a retaining force can be an entire [...] and hot. Specifically, a glass transition temperature less than about -60 °C temperature maintaining force when said pressure drop greater than about -10 °C when door is constructed by my repelling characteristic number reduced wettability fluoroelastomeric and flow tides.

Said (meth) acrylic polymer can be formed to have weight average molecular weight of about 500, 000g/mol to about 3,000,000g/mol. Said high temperature formed to have a weight average molecular weight in the range of even under conditions of high resistance against an external shock resistance can be improved.

Said photocurable adhesive composition as aforementioned, said (meth) acrylic syrup tank formed by bulk polymerization said number as can be switched on, about 5% to about 30% polymerization of (meth) acrylic syrup said conversions can be formed.

Said polymerization conversion (meth) acrylic polymers in the range of the magnetic circuit with the shear properties to said adhesive forming a cured product of the composition is an aqueous adhesive composition can take for curing of said adhesive and hot implement according to a purpose of the invention and the conditions of the curing process can be adjusted in a wide range can be imparting more various physical properties.

Said (meth) acrylic polymer as a component of a separate said photocurable gradually composition, and (meth) acrylic monomer can be included, said (meth) acrylic monomer composition for polymerization of said conducting said (meth) acrylic syrup formed present in bulk can be be a special. (Meth) acrylic monomer and thereby said monomer and said number 2 can be monomer of said number 1.

The total of the (meth) acrylic monomer said photocurable adhesive composition about 55% to about 89% by weight of said weight can be included.

The step number in said photocurable adhesive composition bath, said photocurable adhesive composition a further mixing said bulk polymerization after completing the disclosure number can be light, said optical disclosure number efined one embodiment of the type aforementioned.

100 parts by weight of said (meth) acrylic polymer is said optical disclosure number about 0. 1 parts by weight to about 0. 5 parts by weight can be mixed. Said content in the range of said adhesive composition within the photocuring reaction proceeds by mixing into a stand-alone while remaining unreacted light sufficiently disclosure number number (migration) to effectively prevent the deterioration of physical properties by developing potentials are generated by or minimize can.

In addition, the step number in said photocurable adhesive composition bath, said bulk polymerization after completing said photocurable adhesive composition e.g., crosslinked number, UV stable number, anti-oxidation number, and combination thereof but addition of at least one number selected from the group consisting a further mixing, not limited to 2000.

Said photocurable adhesive the compositions have a viscosity from about 10, 000cps number about 2, 000cps about 20 °C bath so can be disclosed. With a viscosity in the range of said number tank so that each components to more uniformly mixed can take e.g., film, tape, hereinafter for more absorbing can be machined.

In the embodiment of the present invention hereinafter are etched in the specific number. But, for the present invention are described in the embodiment or example specifically for gas and to explain only, the one immediately after being turned off the present invention the number WD other.

In the embodiment

In the embodiment 1

Ethyl [...] (EHA, glass transition temperature: -65 °C), methyl acrylate (MA, glass transition temperature: 10 °C), acrylic acid (AA, glass transition temperature: 106 °C) a 75:20:5 99% by weight including the weight ratio of monomer composition for polymerization by mixing and stirring (IRG184) total disclosure number and work through.

Then, said polymerization composition for 100 mJ/cm² To 1,000 mJ/cm² Quantity 10 minutes (meth) acrylic syrup by irradiating bulk polymerization to yield said (meth) acrylic syrup is 100 parts by weight of (meth) acrylic polymer formed in the light disclosure number (IRG184) 0. 3 parts by weight of a photocurable adhesive composition by further mixing number was high pressure liquid coolant.

In the embodiment 2

Ethyl [...] (EHA, glass transition temperature: -65 °C), methyl acrylate (MA, glass transition temperature: 10 °C), acrylic acid (AA, glass transition temperature: 106 °C) a 75:20:5 99 weight % based on the weight of the total of the monomer component including mixing and stirring the mouldable composition for polymerization is in the range of 0.1 and optical disclosure number (IRG184) number equal to the number in the embodiment 1 and the photocurable adhesive composition of a high pressure liquid coolant [...] conditions his method.

In the embodiment 3

Ethyl [...] (EHA, glass transition temperature: -65 °C), methyl acrylate (MA, glass transition temperature: 10 °C), acrylic acid (AA, glass transition temperature: 106 °C) a disclosure number 99 weight % based on the weight of the total of the monomer component including 70:25:5 (IRG184) agitating the mouldable composition for polymerization in the range of 0.1 and number in the embodiment 1 and mixing and the photocurable adhesive composition was equal to number method [...] conditions high pressure liquid coolant.

In the embodiment 4

Ethyl [...] (EHA, glass transition temperature: -65 °C), butyl acrylate (BA, glass transition temperature: -55 °C), methyl acrylate (MA, glass transition temperature: 10 °C), acrylic acid (AA, glass transition temperature: 106 °C) a 99% by weight based on the weight of the total of the monomer component including 60:20:15:5 disclosure number (IRG184) agitating the mouldable composition for polymerization in the range of 0.1 and number in the embodiment 1 and mixing and the photocurable adhesive composition was equal to number method [...] conditions high pressure liquid coolant.

Comparison example 1

Ethyl [...] (EHA, glass transition temperature: -65 °C), a butyl acrylate (BA, glass transition temperature: -55 °C) 99% by weight of the total of the monomer component including the weight ratio 60:40 mixing and stirring the mouldable composition for polymerization in the range of 0.1 and optical disclosure number (IRG184) by the method in the embodiment 1 and the same condition and the photocurable adhesive composition number [...] number was high pressure liquid coolant.

Comparison example 2

Methyl acrylate (MA, glass transition temperature: 10 °C), acrylic acid (AA, glass transition temperature: 106 °C) a 99% by weight of the total of the monomer component including the weight ratio 95:5 (IRG184) agitating the mouldable composition for polymerization in the range of 0.1 and optical disclosure number the number [...] mixing and the same method in the embodiment 1 and the photocurable adhesive composition of a high pressure liquid coolant conditions his number.

Comparison example 3

In comparison example 1 prepare the polymerization composition further mixing number machie of, 50 °C to 80 °C 7 to a temperature of (meth) acrylic syrup solution polymerization to yield heat treatment time by said (meth) acrylic syrup formed 100 parts by weight of (meth) acrylic polymer formed in the light disclosure number (IRG184) 0. 3 parts by weight of a photocurable adhesive composition by further mixing number was high pressure liquid coolant.

Experiment example

Said photocurable adhesive composition for said in the embodiment 1 - 4 and comparison example 1 - 3 according to 150 mJ/cm² 3 quantity by the UV adhesive film thickness of 75 minutes each micro m weight percent.

Then, each said adhesive film for various properties to the evaluated to have shown table 1.

Evaluation method

Experiment example 1: curing also

Measuring method: 5 mm x5 mm x5 mm size smaller than a diameter of each said adhesive film to cut a number of weighing before can take place after it immersed for originally mass are obtained.

Then, the specimen immersed in ethyl acetate at room temperature for 24 hours after said number is left, 200 mesh using a cylindrical specimen after 2 hours in every other left 110 °C (dry mass) mass measuring mass flow rate of the sample obtained through later are obtained.

Said first mass W_i Wherein, said later mass W_f To 1 degree is violated by cured by the bill:

[1 is violated]

Also cured (%)=W_f /W_i X 100

Experiment example 2: impact strength (impact)

Measuring method: said in the embodiment 1 - 4 and comparison example 1 - 3 according to said adhesive against the film were measured using [...] impact tester (Dupont type impact tester).

Specifically, the diameter of the center hole (hole) is formed of polycarbonate (PC) 10 mm 50 mm x50 mm x2 mm substrate, said in the embodiment 1 - 4 and comparison example 1 - 3 according to each said adhesive film is attached via 20 mm x20 mm x3 mm glass, then after 1 minutes to 3 kg force is attached to the center hole so that pressing the laminate 24 RT 23 °C and RH 50% solution under conditions the work through the specimen.

The center of the height of 50 mm to 500 mm from said laminate 100g repellant to the raised position while sequentially 50 mm weight drops by attaching glass adhesive film are observed to impact test was whether [...] embodiment.

At this time, if the installation position of said glass and said adhesive film attaching weight until they weight of 150g, 200g, 300g and 400g increases impact testing have [...] embodiment while, when the weight of the weight 150g 350 provided 500 mm, when 200g 400 provided 500 mm, when raised by 50 mm in height and 300g 400g 350 provided 500 mm is sequentially with respect to the fall position.

Thereby said glass and said adhesive film to said adhesive film display said in the embodiment 1 - 4 and comparison example 1 - 3 according to each case and dropping from a dial gauge and attaching these publicly known physical laws impact strength in the art according to the bill.

Experiment example 3: Retaining force

Measuring method: said in the embodiment 1 - 4 and said adhesive film cut 25 mm x25 mm size comparison example 1 - 3 according to respective work through the specimen.

25 mm X50 mm prepared two blocks of SUS 304 1/2 H, 1 times the same IPA, and heptane to his-wash 3.

Then, one side of each said block is attached to one of said specimen, said specimen each O-chlorophenol is attached another one said block, said block in each opposite direction to protrude a predetermined rate 2 times some 7 kg roller 25 mm/sec using the base of reciprocating a depressed, then, each sample number 1 to time RT 23 °C and RH 50% under a condition of small left-gate.

In addition, then, said end amount of sample at an top surface (upper surface) sufficient amount of each block to secure the gravity direction and the other one is a weight to be applied to 500g suspension force in temperature and humidity condition into the film layer chamber 85 °C RH 85% are observed to have attaching at the time that the timing continuously 24 hours, does not take place when attaching the retaining force was assessed as good.

Experiment example 4: [...]

Measuring method: 150 mm X25 mm size comparison example 1 - 3 according to said respective said in the embodiment 1 - 4 and said adhesive film cut the work through the specimen.

155 mm X30 mm X0. 5 mm size of 170 mm X35 mm X2 mm polycarbonate substrates produced on the aluminum substrate and attached to the IPA to 1 times, heptane to his-wash 3.

Then, an edge portion of said aluminum substrate and engages with an edge portion of said specimen is directly attached to said specimen and said aluminum substrate, taken along the center of the aluminum substrate 2 is carried out after said reciprocating times 7 kg a depressed surface attached with said polycarbonate substrates is removed, said edge portion of said aluminum substrate with an edge portion of a polycarbonate substrate is polycarbonate substrates produced on the aluminum substrate while said center of said match is a predetermined times so that the base 2 to the rollers 7 kg reciprocating depressed, then, is left for each sample number 24 under a condition of time-gate to RT 23 °C and RH 50% smaller.

In addition, then, said universal tester test jig for each sample (Al material, 210 mm X165 mm X5 mm) is fitted to conform to the ends of the temperature and humidity condition into the RH 85% after 2 hours 85 °C continuously attaching at the time that the film layer chamber are observed to have timing, does not take place when the attaching my repelling characteristic was assessed as good.

Experiment example 5: temperature storage stability

Measuring method: said (meth) acrylic syrup said in the embodiment 1 - 4 and comparison example 1 - 3 according to each hot chamber 24 to raise 60 °C (tag number ionomer, ON provided 22) after conversion in said case for switching whether the rate of change of temperature to "○" evaluates an Image excellent in storage stability, increased conversion rate when inferior with respect to "X" evaluates the storage stability have been designated.

As shown in the table 1, in the embodiment 1 to 4 according to photocurable adhesive composition from adhesive film prepared by the number in the case of impact strength, which is excellent in both the low-temperature maintaining force and my repelling sincerity properties implemented level that clearly confirmed. In particular, in the embodiment 1 to 3 according to photocurable adhesive composition from adhesive film prepared by the number in the case of impact strength, excellent low-temperature maintaining force level to realize the more effectively improved my repelling characteristic value, causing odors during work not nbits has excellent workability.

While, in the case of a photocurable adhesive composition from comparison example 1 to 4 according to significantly impact strength inferior adhesive film prepared by the number and, in particular, my repelling characteristic inferior hereinafter clearly confirmed that the schedulable 1 both backed up in time. In addition, in the case of comparison example 1, 3 odor generating workability by low and, in addition in the case of comparison example 3 temperature storage stability was inferior.